truffle: agent/src/os/linux/ps

annotate agent/src/os/linux/ps_core.c @ 12936:1bee3014cf2a

8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file Summary: Coredump store memsz elf field rounded up to page Reviewed-by: dholmes, sla

author	dsamersoff
date	Thu, 17 Oct 2013 16:08:01 +0400
parents	5705c7ee6dd7
children

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1385 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1385 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1385 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
a61af66fc99e Initial load duke parents: diff changeset	25 #include <jni.h>
a61af66fc99e Initial load duke parents: diff changeset	26 #include <unistd.h>
a61af66fc99e Initial load duke parents: diff changeset	27 #include <fcntl.h>
a61af66fc99e Initial load duke parents: diff changeset	28 #include <string.h>
a61af66fc99e Initial load duke parents: diff changeset	29 #include <stdlib.h>
a61af66fc99e Initial load duke parents: diff changeset	30 #include <stddef.h>
a61af66fc99e Initial load duke parents: diff changeset	31 #include <elf.h>
a61af66fc99e Initial load duke parents: diff changeset	32 #include <link.h>
a61af66fc99e Initial load duke parents: diff changeset	33 #include "libproc_impl.h"
a61af66fc99e Initial load duke parents: diff changeset	34 #include "salibelf.h"
a61af66fc99e Initial load duke parents: diff changeset	35
a61af66fc99e Initial load duke parents: diff changeset	36 // This file has the libproc implementation to read core files.
a61af66fc99e Initial load duke parents: diff changeset	37 // For live processes, refer to ps_proc.c. Portions of this is adapted
a61af66fc99e Initial load duke parents: diff changeset	38 // /modelled after Solaris libproc.so (in particular Pcore.c)
a61af66fc99e Initial load duke parents: diff changeset	39
a61af66fc99e Initial load duke parents: diff changeset	40 //----------------------------------------------------------------------
a61af66fc99e Initial load duke parents: diff changeset	41 // ps_prochandle cleanup helper functions
a61af66fc99e Initial load duke parents: diff changeset	42
a61af66fc99e Initial load duke parents: diff changeset	43 // close all file descriptors
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	44 static void close_files(struct ps_prochandle* ph) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	45 lib_info* lib = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	46
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	47 // close core file descriptor
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	48 if (ph->core->core_fd >= 0)
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	49 close(ph->core->core_fd);
0 a61af66fc99e Initial load duke parents: diff changeset	50
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	51 // close exec file descriptor
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	52 if (ph->core->exec_fd >= 0)
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	53 close(ph->core->exec_fd);
0 a61af66fc99e Initial load duke parents: diff changeset	54
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	55 // close interp file descriptor
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	56 if (ph->core->interp_fd >= 0)
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	57 close(ph->core->interp_fd);
0 a61af66fc99e Initial load duke parents: diff changeset	58
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	59 // close class share archive file
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	60 if (ph->core->classes_jsa_fd >= 0)
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	61 close(ph->core->classes_jsa_fd);
0 a61af66fc99e Initial load duke parents: diff changeset	62
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	63 // close all library file descriptors
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	64 lib = ph->libs;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	65 while (lib) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	66 int fd = lib->fd;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	67 if (fd >= 0 && fd != ph->core->exec_fd) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	68 close(fd);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	69 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	70 lib = lib->next;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	71 }
0 a61af66fc99e Initial load duke parents: diff changeset	72 }
a61af66fc99e Initial load duke parents: diff changeset	73
a61af66fc99e Initial load duke parents: diff changeset	74 // clean all map_info stuff
a61af66fc99e Initial load duke parents: diff changeset	75 static void destroy_map_info(struct ps_prochandle* ph) {
a61af66fc99e Initial load duke parents: diff changeset	76 map_info* map = ph->core->maps;
a61af66fc99e Initial load duke parents: diff changeset	77 while (map) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	78 map_info* next = map->next;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	79 free(map);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	80 map = next;
0 a61af66fc99e Initial load duke parents: diff changeset	81 }
a61af66fc99e Initial load duke parents: diff changeset	82
a61af66fc99e Initial load duke parents: diff changeset	83 if (ph->core->map_array) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	84 free(ph->core->map_array);
0 a61af66fc99e Initial load duke parents: diff changeset	85 }
a61af66fc99e Initial load duke parents: diff changeset	86
a61af66fc99e Initial load duke parents: diff changeset	87 // Part of the class sharing workaround
a61af66fc99e Initial load duke parents: diff changeset	88 map = ph->core->class_share_maps;
a61af66fc99e Initial load duke parents: diff changeset	89 while (map) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	90 map_info* next = map->next;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	91 free(map);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	92 map = next;
0 a61af66fc99e Initial load duke parents: diff changeset	93 }
a61af66fc99e Initial load duke parents: diff changeset	94 }
a61af66fc99e Initial load duke parents: diff changeset	95
a61af66fc99e Initial load duke parents: diff changeset	96 // ps_prochandle operations
a61af66fc99e Initial load duke parents: diff changeset	97 static void core_release(struct ps_prochandle* ph) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	98 if (ph->core) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	99 close_files(ph);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	100 destroy_map_info(ph);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	101 free(ph->core);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	102 }
0 a61af66fc99e Initial load duke parents: diff changeset	103 }
a61af66fc99e Initial load duke parents: diff changeset	104
a61af66fc99e Initial load duke parents: diff changeset	105 static map_info* allocate_init_map(int fd, off_t offset, uintptr_t vaddr, size_t memsz) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	106 map_info* map;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	107 if ( (map = (map_info*) calloc(1, sizeof(map_info))) == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	108 print_debug("can't allocate memory for map_info\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	109 return NULL;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	110 }
0 a61af66fc99e Initial load duke parents: diff changeset	111
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	112 // initialize map
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	113 map->fd = fd;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	114 map->offset = offset;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	115 map->vaddr = vaddr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	116 map->memsz = memsz;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	117 return map;
0 a61af66fc99e Initial load duke parents: diff changeset	118 }
a61af66fc99e Initial load duke parents: diff changeset	119
a61af66fc99e Initial load duke parents: diff changeset	120 // add map info with given fd, offset, vaddr and memsz
a61af66fc99e Initial load duke parents: diff changeset	121 static map_info* add_map_info(struct ps_prochandle* ph, int fd, off_t offset,
a61af66fc99e Initial load duke parents: diff changeset	122 uintptr_t vaddr, size_t memsz) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	123 map_info* map;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	124 if ((map = allocate_init_map(fd, offset, vaddr, memsz)) == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	125 return NULL;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	126 }
0 a61af66fc99e Initial load duke parents: diff changeset	127
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	128 // add this to map list
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	129 map->next = ph->core->maps;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	130 ph->core->maps = map;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	131 ph->core->num_maps++;
0 a61af66fc99e Initial load duke parents: diff changeset	132
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	133 return map;
0 a61af66fc99e Initial load duke parents: diff changeset	134 }
a61af66fc99e Initial load duke parents: diff changeset	135
a61af66fc99e Initial load duke parents: diff changeset	136 // Part of the class sharing workaround
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	137 static map_info* add_class_share_map_info(struct ps_prochandle* ph, off_t offset,
0 a61af66fc99e Initial load duke parents: diff changeset	138 uintptr_t vaddr, size_t memsz) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	139 map_info* map;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	140 if ((map = allocate_init_map(ph->core->classes_jsa_fd,
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	141 offset, vaddr, memsz)) == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	142 return NULL;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	143 }
0 a61af66fc99e Initial load duke parents: diff changeset	144
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	145 map->next = ph->core->class_share_maps;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	146 ph->core->class_share_maps = map;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	147 return map;
0 a61af66fc99e Initial load duke parents: diff changeset	148 }
a61af66fc99e Initial load duke parents: diff changeset	149
a61af66fc99e Initial load duke parents: diff changeset	150 // Return the map_info for the given virtual address. We keep a sorted
a61af66fc99e Initial load duke parents: diff changeset	151 // array of pointers in ph->map_array, so we can binary search.
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	152 static map_info* core_lookup(struct ps_prochandle *ph, uintptr_t addr) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	153 int mid, lo = 0, hi = ph->core->num_maps - 1;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	154 map_info *mp;
0 a61af66fc99e Initial load duke parents: diff changeset	155
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	156 while (hi - lo > 1) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	157 mid = (lo + hi) / 2;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	158 if (addr >= ph->core->map_array[mid]->vaddr) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	159 lo = mid;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	160 } else {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	161 hi = mid;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	162 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	163 }
0 a61af66fc99e Initial load duke parents: diff changeset	164
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	165 if (addr < ph->core->map_array[hi]->vaddr) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	166 mp = ph->core->map_array[lo];
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	167 } else {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	168 mp = ph->core->map_array[hi];
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	169 }
0 a61af66fc99e Initial load duke parents: diff changeset	170
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	171 if (addr >= mp->vaddr && addr < mp->vaddr + mp->memsz) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	172 return (mp);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	173 }
0 a61af66fc99e Initial load duke parents: diff changeset	174
a61af66fc99e Initial load duke parents: diff changeset	175
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	176 // Part of the class sharing workaround
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	177 // Unfortunately, we have no way of detecting -Xshare state.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	178 // Check out the share maps atlast, if we don't find anywhere.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	179 // This is done this way so to avoid reading share pages
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	180 // ahead of other normal maps. For eg. with -Xshare:off we don't
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	181 // want to prefer class sharing data to data from core.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	182 mp = ph->core->class_share_maps;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	183 if (mp) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	184 print_debug("can't locate map_info at 0x%lx, trying class share maps\n", addr);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	185 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	186 while (mp) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	187 if (addr >= mp->vaddr && addr < mp->vaddr + mp->memsz) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	188 print_debug("located map_info at 0x%lx from class share maps\n", addr);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	189 return (mp);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	190 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	191 mp = mp->next;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	192 }
0 a61af66fc99e Initial load duke parents: diff changeset	193
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	194 print_debug("can't locate map_info at 0x%lx\n", addr);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	195 return (NULL);
0 a61af66fc99e Initial load duke parents: diff changeset	196 }
a61af66fc99e Initial load duke parents: diff changeset	197
a61af66fc99e Initial load duke parents: diff changeset	198 //---------------------------------------------------------------
a61af66fc99e Initial load duke parents: diff changeset	199 // Part of the class sharing workaround:
a61af66fc99e Initial load duke parents: diff changeset	200 //
10229 f6a055fcf47d 8005038: remove crufty '_g' support from SA sla parents: 8709 diff changeset	201 // With class sharing, pages are mapped from classes.jsa file.
0 a61af66fc99e Initial load duke parents: diff changeset	202 // The read-only class sharing pages are mapped as MAP_SHARED,
a61af66fc99e Initial load duke parents: diff changeset	203 // PROT_READ pages. These pages are not dumped into core dump.
10229 f6a055fcf47d 8005038: remove crufty '_g' support from SA sla parents: 8709 diff changeset	204 // With this workaround, these pages are read from classes.jsa.
0 a61af66fc99e Initial load duke parents: diff changeset	205
a61af66fc99e Initial load duke parents: diff changeset	206 // FIXME: !HACK ALERT!
a61af66fc99e Initial load duke parents: diff changeset	207 // The format of sharing achive file header is needed to read shared heap
a61af66fc99e Initial load duke parents: diff changeset	208 // file mappings. For now, I am hard coding portion of FileMapHeader here.
a61af66fc99e Initial load duke parents: diff changeset	209 // Refer to filemap.hpp.
a61af66fc99e Initial load duke parents: diff changeset	210
a61af66fc99e Initial load duke parents: diff changeset	211 // FileMapHeader describes the shared space data in the file to be
a61af66fc99e Initial load duke parents: diff changeset	212 // mapped. This structure gets written to a file. It is not a class,
a61af66fc99e Initial load duke parents: diff changeset	213 // so that the compilers don't add any compiler-private data to it.
a61af66fc99e Initial load duke parents: diff changeset	214
a61af66fc99e Initial load duke parents: diff changeset	215 #define NUM_SHARED_MAPS 4
a61af66fc99e Initial load duke parents: diff changeset	216
a61af66fc99e Initial load duke parents: diff changeset	217 // Refer to FileMapInfo::_current_version in filemap.hpp
a61af66fc99e Initial load duke parents: diff changeset	218 #define CURRENT_ARCHIVE_VERSION 1
a61af66fc99e Initial load duke parents: diff changeset	219
a61af66fc99e Initial load duke parents: diff changeset	220 struct FileMapHeader {
a61af66fc99e Initial load duke parents: diff changeset	221 int _magic; // identify file type.
a61af66fc99e Initial load duke parents: diff changeset	222 int _version; // (from enum, above.)
a61af66fc99e Initial load duke parents: diff changeset	223 size_t _alignment; // how shared archive should be aligned
a61af66fc99e Initial load duke parents: diff changeset	224
a61af66fc99e Initial load duke parents: diff changeset	225 struct space_info {
a61af66fc99e Initial load duke parents: diff changeset	226 int _file_offset; // sizeof(this) rounded to vm page size
a61af66fc99e Initial load duke parents: diff changeset	227 char* _base; // copy-on-write base address
a61af66fc99e Initial load duke parents: diff changeset	228 size_t _capacity; // for validity checking
a61af66fc99e Initial load duke parents: diff changeset	229 size_t _used; // for setting space top on read
a61af66fc99e Initial load duke parents: diff changeset	230
a61af66fc99e Initial load duke parents: diff changeset	231 // 4991491 NOTICE These are C++ bool's in filemap.hpp and must match up with
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	232 // the C type matching the C++ bool type on any given platform.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	233 // We assume the corresponding C type is char but licensees
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	234 // may need to adjust the type of these fields.
0 a61af66fc99e Initial load duke parents: diff changeset	235 char _read_only; // read only space?
a61af66fc99e Initial load duke parents: diff changeset	236 char _allow_exec; // executable code in space?
a61af66fc99e Initial load duke parents: diff changeset	237
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6018 diff changeset	238 } _space[NUM_SHARED_MAPS];
0 a61af66fc99e Initial load duke parents: diff changeset	239
a61af66fc99e Initial load duke parents: diff changeset	240 // Ignore the rest of the FileMapHeader. We don't need those fields here.
a61af66fc99e Initial load duke parents: diff changeset	241 };
a61af66fc99e Initial load duke parents: diff changeset	242
529 8db2b3e46c38 6786948: SA on core file fails on solaris-amd64 if vm started with -XX:+StartAttachListener swamyv parents: 196 diff changeset	243 static bool read_jboolean(struct ps_prochandle* ph, uintptr_t addr, jboolean* pvalue) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	244 jboolean i;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	245 if (ps_pdread(ph, (psaddr_t) addr, &i, sizeof(i)) == PS_OK) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	246 *pvalue = i;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	247 return true;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	248 } else {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	249 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	250 }
0 a61af66fc99e Initial load duke parents: diff changeset	251 }
a61af66fc99e Initial load duke parents: diff changeset	252
a61af66fc99e Initial load duke parents: diff changeset	253 static bool read_pointer(struct ps_prochandle* ph, uintptr_t addr, uintptr_t* pvalue) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	254 uintptr_t uip;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	255 if (ps_pdread(ph, (psaddr_t) addr, (char *)&uip, sizeof(uip)) == PS_OK) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	256 *pvalue = uip;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	257 return true;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	258 } else {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	259 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	260 }
0 a61af66fc99e Initial load duke parents: diff changeset	261 }
a61af66fc99e Initial load duke parents: diff changeset	262
a61af66fc99e Initial load duke parents: diff changeset	263 // used to read strings from debuggee
a61af66fc99e Initial load duke parents: diff changeset	264 static bool read_string(struct ps_prochandle* ph, uintptr_t addr, char* buf, size_t size) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	265 size_t i = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	266 char c = ' ';
0 a61af66fc99e Initial load duke parents: diff changeset	267
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	268 while (c != '\0') {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	269 if (ps_pdread(ph, (psaddr_t) addr, &c, sizeof(char)) != PS_OK) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	270 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	271 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	272 if (i < size - 1) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	273 buf[i] = c;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	274 } else {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	275 // smaller buffer
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	276 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	277 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	278 i++; addr++;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	279 }
0 a61af66fc99e Initial load duke parents: diff changeset	280
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	281 buf[i] = '\0';
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	282 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	283 }
a61af66fc99e Initial load duke parents: diff changeset	284
a61af66fc99e Initial load duke parents: diff changeset	285 #define USE_SHARED_SPACES_SYM "UseSharedSpaces"
a61af66fc99e Initial load duke parents: diff changeset	286 // mangled name of Arguments::SharedArchivePath
a61af66fc99e Initial load duke parents: diff changeset	287 #define SHARED_ARCHIVE_PATH_SYM "_ZN9Arguments17SharedArchivePathE"
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	288 #define LIBJVM_NAME "/libjvm.so"
0 a61af66fc99e Initial load duke parents: diff changeset	289
a61af66fc99e Initial load duke parents: diff changeset	290 static bool init_classsharing_workaround(struct ps_prochandle* ph) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	291 lib_info* lib = ph->libs;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	292 while (lib != NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	293 // we are iterating over shared objects from the core dump. look for
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	294 // libjvm.so.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	295 const char *jvm_name = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	296 if ((jvm_name = strstr(lib->name, LIBJVM_NAME)) != 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	297 char classes_jsa[PATH_MAX];
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	298 struct FileMapHeader header;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	299 int fd = -1;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	300 int m = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	301 size_t n = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	302 uintptr_t base = 0, useSharedSpacesAddr = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	303 uintptr_t sharedArchivePathAddrAddr = 0, sharedArchivePathAddr = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	304 jboolean useSharedSpaces = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	305 map_info* mi = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	306
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	307 memset(classes_jsa, 0, sizeof(classes_jsa));
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	308 jvm_name = lib->name;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	309 useSharedSpacesAddr = lookup_symbol(ph, jvm_name, USE_SHARED_SPACES_SYM);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	310 if (useSharedSpacesAddr == 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	311 print_debug("can't lookup 'UseSharedSpaces' flag\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	312 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	313 }
0 a61af66fc99e Initial load duke parents: diff changeset	314
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	315 // Hotspot vm types are not exported to build this library. So
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	316 // using equivalent type jboolean to read the value of
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	317 // UseSharedSpaces which is same as hotspot type "bool".
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	318 if (read_jboolean(ph, useSharedSpacesAddr, &useSharedSpaces) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	319 print_debug("can't read the value of 'UseSharedSpaces' flag\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	320 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	321 }
0 a61af66fc99e Initial load duke parents: diff changeset	322
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	323 if ((int)useSharedSpaces == 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	324 print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	325 return true;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	326 }
0 a61af66fc99e Initial load duke parents: diff changeset	327
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	328 sharedArchivePathAddrAddr = lookup_symbol(ph, jvm_name, SHARED_ARCHIVE_PATH_SYM);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	329 if (sharedArchivePathAddrAddr == 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	330 print_debug("can't lookup shared archive path symbol\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	331 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	332 }
0 a61af66fc99e Initial load duke parents: diff changeset	333
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	334 if (read_pointer(ph, sharedArchivePathAddrAddr, &sharedArchivePathAddr) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	335 print_debug("can't read shared archive path pointer\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	336 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	337 }
0 a61af66fc99e Initial load duke parents: diff changeset	338
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	339 if (read_string(ph, sharedArchivePathAddr, classes_jsa, sizeof(classes_jsa)) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	340 print_debug("can't read shared archive path value\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	341 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	342 }
0 a61af66fc99e Initial load duke parents: diff changeset	343
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	344 print_debug("looking for %s\n", classes_jsa);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	345 // open the class sharing archive file
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	346 fd = pathmap_open(classes_jsa);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	347 if (fd < 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	348 print_debug("can't open %s!\n", classes_jsa);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	349 ph->core->classes_jsa_fd = -1;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	350 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	351 } else {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	352 print_debug("opened %s\n", classes_jsa);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	353 }
0 a61af66fc99e Initial load duke parents: diff changeset	354
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	355 // read FileMapHeader from the file
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	356 memset(&header, 0, sizeof(struct FileMapHeader));
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	357 if ((n = read(fd, &header, sizeof(struct FileMapHeader)))
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	358 != sizeof(struct FileMapHeader)) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	359 print_debug("can't read shared archive file map header from %s\n", classes_jsa);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	360 close(fd);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	361 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	362 }
0 a61af66fc99e Initial load duke parents: diff changeset	363
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	364 // check file magic
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	365 if (header._magic != 0xf00baba2) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	366 print_debug("%s has bad shared archive file magic number 0x%x, expecing 0xf00baba2\n",
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	367 classes_jsa, header._magic);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	368 close(fd);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	369 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	370 }
0 a61af66fc99e Initial load duke parents: diff changeset	371
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	372 // check version
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	373 if (header._version != CURRENT_ARCHIVE_VERSION) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	374 print_debug("%s has wrong shared archive file version %d, expecting %d\n",
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	375 classes_jsa, header._version, CURRENT_ARCHIVE_VERSION);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	376 close(fd);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	377 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	378 }
0 a61af66fc99e Initial load duke parents: diff changeset	379
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	380 ph->core->classes_jsa_fd = fd;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	381 // add read-only maps from classes.jsa to the list of maps
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	382 for (m = 0; m < NUM_SHARED_MAPS; m++) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	383 if (header._space[m]._read_only) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	384 base = (uintptr_t) header._space[m]._base;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	385 // no need to worry about the fractional pages at-the-end.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	386 // possible fractional pages are handled by core_read_data.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	387 add_class_share_map_info(ph, (off_t) header._space[m]._file_offset,
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	388 base, (size_t) header._space[m]._used);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	389 print_debug("added a share archive map at 0x%lx\n", base);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	390 }
0 a61af66fc99e Initial load duke parents: diff changeset	391 }
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	392 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	393 }
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	394 lib = lib->next;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	395 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	396 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	397 }
a61af66fc99e Initial load duke parents: diff changeset	398
a61af66fc99e Initial load duke parents: diff changeset	399
a61af66fc99e Initial load duke parents: diff changeset	400 //---------------------------------------------------------------------------
a61af66fc99e Initial load duke parents: diff changeset	401 // functions to handle map_info
a61af66fc99e Initial load duke parents: diff changeset	402
a61af66fc99e Initial load duke parents: diff changeset	403 // Order mappings based on virtual address. We use this function as the
a61af66fc99e Initial load duke parents: diff changeset	404 // callback for sorting the array of map_info pointers.
a61af66fc99e Initial load duke parents: diff changeset	405 static int core_cmp_mapping(const void lhsp, const void rhsp)
a61af66fc99e Initial load duke parents: diff changeset	406 {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	407 const map_info lhs = ((const map_info **)lhsp);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	408 const map_info rhs = ((const map_info **)rhsp);
0 a61af66fc99e Initial load duke parents: diff changeset	409
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	410 if (lhs->vaddr == rhs->vaddr) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	411 return (0);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	412 }
0 a61af66fc99e Initial load duke parents: diff changeset	413
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	414 return (lhs->vaddr < rhs->vaddr ? -1 : 1);
0 a61af66fc99e Initial load duke parents: diff changeset	415 }
a61af66fc99e Initial load duke parents: diff changeset	416
a61af66fc99e Initial load duke parents: diff changeset	417 // we sort map_info by starting virtual address so that we can do
a61af66fc99e Initial load duke parents: diff changeset	418 // binary search to read from an address.
a61af66fc99e Initial load duke parents: diff changeset	419 static bool sort_map_array(struct ps_prochandle* ph) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	420 size_t num_maps = ph->core->num_maps;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	421 map_info* map = ph->core->maps;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	422 int i = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	423
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	424 // allocate map_array
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	425 map_info** array;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	426 if ( (array = (map_info*) malloc(sizeof(map_info) * num_maps)) == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	427 print_debug("can't allocate memory for map array\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	428 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	429 }
0 a61af66fc99e Initial load duke parents: diff changeset	430
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	431 // add maps to array
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	432 while (map) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	433 array[i] = map;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	434 i++;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	435 map = map->next;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	436 }
0 a61af66fc99e Initial load duke parents: diff changeset	437
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	438 // sort is called twice. If this is second time, clear map array
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	439 if (ph->core->map_array) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	440 free(ph->core->map_array);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	441 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	442
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	443 ph->core->map_array = array;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	444 // sort the map_info array by base virtual address.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	445 qsort(ph->core->map_array, ph->core->num_maps, sizeof (map_info*),
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	446 core_cmp_mapping);
0 a61af66fc99e Initial load duke parents: diff changeset	447
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	448 // print map
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	449 if (is_debug()) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	450 int j = 0;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	451 print_debug("---- sorted virtual address map ----\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	452 for (j = 0; j < ph->core->num_maps; j++) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	453 print_debug("base = 0x%lx\tsize = %zu\n", ph->core->map_array[j]->vaddr,
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	454 ph->core->map_array[j]->memsz);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	455 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	456 }
0 a61af66fc99e Initial load duke parents: diff changeset	457
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	458 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	459 }
a61af66fc99e Initial load duke parents: diff changeset	460
a61af66fc99e Initial load duke parents: diff changeset	461 #ifndef MIN
a61af66fc99e Initial load duke parents: diff changeset	462 #define MIN(x, y) (((x) < (y))? (x): (y))
a61af66fc99e Initial load duke parents: diff changeset	463 #endif
a61af66fc99e Initial load duke parents: diff changeset	464
a61af66fc99e Initial load duke parents: diff changeset	465 static bool core_read_data(struct ps_prochandle* ph, uintptr_t addr, char *buf, size_t size) {
a61af66fc99e Initial load duke parents: diff changeset	466 ssize_t resid = size;
a61af66fc99e Initial load duke parents: diff changeset	467 int page_size=sysconf(_SC_PAGE_SIZE);
a61af66fc99e Initial load duke parents: diff changeset	468 while (resid != 0) {
a61af66fc99e Initial load duke parents: diff changeset	469 map_info *mp = core_lookup(ph, addr);
a61af66fc99e Initial load duke parents: diff changeset	470 uintptr_t mapoff;
a61af66fc99e Initial load duke parents: diff changeset	471 ssize_t len, rem;
a61af66fc99e Initial load duke parents: diff changeset	472 off_t off;
a61af66fc99e Initial load duke parents: diff changeset	473 int fd;
a61af66fc99e Initial load duke parents: diff changeset	474
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	475 if (mp == NULL) {
0 a61af66fc99e Initial load duke parents: diff changeset	476 break; /* No mapping for this address */
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	477 }
0 a61af66fc99e Initial load duke parents: diff changeset	478
a61af66fc99e Initial load duke parents: diff changeset	479 fd = mp->fd;
a61af66fc99e Initial load duke parents: diff changeset	480 mapoff = addr - mp->vaddr;
a61af66fc99e Initial load duke parents: diff changeset	481 len = MIN(resid, mp->memsz - mapoff);
a61af66fc99e Initial load duke parents: diff changeset	482 off = mp->offset + mapoff;
a61af66fc99e Initial load duke parents: diff changeset	483
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	484 if ((len = pread(fd, buf, len, off)) <= 0) {
0 a61af66fc99e Initial load duke parents: diff changeset	485 break;
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	486 }
0 a61af66fc99e Initial load duke parents: diff changeset	487
a61af66fc99e Initial load duke parents: diff changeset	488 resid -= len;
a61af66fc99e Initial load duke parents: diff changeset	489 addr += len;
a61af66fc99e Initial load duke parents: diff changeset	490 buf = (char *)buf + len;
a61af66fc99e Initial load duke parents: diff changeset	491
a61af66fc99e Initial load duke parents: diff changeset	492 // mappings always start at page boundary. But, may end in fractional
a61af66fc99e Initial load duke parents: diff changeset	493 // page. fill zeros for possible fractional page at the end of a mapping.
a61af66fc99e Initial load duke parents: diff changeset	494 rem = mp->memsz % page_size;
a61af66fc99e Initial load duke parents: diff changeset	495 if (rem > 0) {
a61af66fc99e Initial load duke parents: diff changeset	496 rem = page_size - rem;
a61af66fc99e Initial load duke parents: diff changeset	497 len = MIN(resid, rem);
a61af66fc99e Initial load duke parents: diff changeset	498 resid -= len;
a61af66fc99e Initial load duke parents: diff changeset	499 addr += len;
a61af66fc99e Initial load duke parents: diff changeset	500 // we are not assuming 'buf' to be zero initialized.
a61af66fc99e Initial load duke parents: diff changeset	501 memset(buf, 0, len);
a61af66fc99e Initial load duke parents: diff changeset	502 buf += len;
a61af66fc99e Initial load duke parents: diff changeset	503 }
a61af66fc99e Initial load duke parents: diff changeset	504 }
a61af66fc99e Initial load duke parents: diff changeset	505
a61af66fc99e Initial load duke parents: diff changeset	506 if (resid) {
a61af66fc99e Initial load duke parents: diff changeset	507 print_debug("core read failed for %d byte(s) @ 0x%lx (%d more bytes)\n",
a61af66fc99e Initial load duke parents: diff changeset	508 size, addr, resid);
a61af66fc99e Initial load duke parents: diff changeset	509 return false;
a61af66fc99e Initial load duke parents: diff changeset	510 } else {
a61af66fc99e Initial load duke parents: diff changeset	511 return true;
a61af66fc99e Initial load duke parents: diff changeset	512 }
a61af66fc99e Initial load duke parents: diff changeset	513 }
a61af66fc99e Initial load duke parents: diff changeset	514
a61af66fc99e Initial load duke parents: diff changeset	515 // null implementation for write
a61af66fc99e Initial load duke parents: diff changeset	516 static bool core_write_data(struct ps_prochandle* ph,
a61af66fc99e Initial load duke parents: diff changeset	517 uintptr_t addr, const char *buf , size_t size) {
a61af66fc99e Initial load duke parents: diff changeset	518 return false;
a61af66fc99e Initial load duke parents: diff changeset	519 }
a61af66fc99e Initial load duke parents: diff changeset	520
a61af66fc99e Initial load duke parents: diff changeset	521 static bool core_get_lwp_regs(struct ps_prochandle* ph, lwpid_t lwp_id,
a61af66fc99e Initial load duke parents: diff changeset	522 struct user_regs_struct* regs) {
a61af66fc99e Initial load duke parents: diff changeset	523 // for core we have cached the lwp regs from NOTE section
a61af66fc99e Initial load duke parents: diff changeset	524 thread_info* thr = ph->threads;
a61af66fc99e Initial load duke parents: diff changeset	525 while (thr) {
a61af66fc99e Initial load duke parents: diff changeset	526 if (thr->lwp_id == lwp_id) {
a61af66fc99e Initial load duke parents: diff changeset	527 memcpy(regs, &thr->regs, sizeof(struct user_regs_struct));
a61af66fc99e Initial load duke parents: diff changeset	528 return true;
a61af66fc99e Initial load duke parents: diff changeset	529 }
a61af66fc99e Initial load duke parents: diff changeset	530 thr = thr->next;
a61af66fc99e Initial load duke parents: diff changeset	531 }
a61af66fc99e Initial load duke parents: diff changeset	532 return false;
a61af66fc99e Initial load duke parents: diff changeset	533 }
a61af66fc99e Initial load duke parents: diff changeset	534
a61af66fc99e Initial load duke parents: diff changeset	535 static ps_prochandle_ops core_ops = {
50 485d403e94e1 6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers dcubed parents: 0 diff changeset	536 .release= core_release,
485d403e94e1 6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers dcubed parents: 0 diff changeset	537 .p_pread= core_read_data,
485d403e94e1 6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers dcubed parents: 0 diff changeset	538 .p_pwrite= core_write_data,
485d403e94e1 6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers dcubed parents: 0 diff changeset	539 .get_lwp_regs= core_get_lwp_regs
0 a61af66fc99e Initial load duke parents: diff changeset	540 };
a61af66fc99e Initial load duke parents: diff changeset	541
a61af66fc99e Initial load duke parents: diff changeset	542 // read regs and create thread from NT_PRSTATUS entries from core file
a61af66fc99e Initial load duke parents: diff changeset	543 static bool core_handle_prstatus(struct ps_prochandle* ph, const char* buf, size_t nbytes) {
a61af66fc99e Initial load duke parents: diff changeset	544 // we have to read prstatus_t from buf
a61af66fc99e Initial load duke parents: diff changeset	545 // assert(nbytes == sizeof(prstaus_t), "size mismatch on prstatus_t");
a61af66fc99e Initial load duke parents: diff changeset	546 prstatus_t* prstat = (prstatus_t*) buf;
a61af66fc99e Initial load duke parents: diff changeset	547 thread_info* newthr;
a61af66fc99e Initial load duke parents: diff changeset	548 print_debug("got integer regset for lwp %d\n", prstat->pr_pid);
a61af66fc99e Initial load duke parents: diff changeset	549 // we set pthread_t to -1 for core dump
a61af66fc99e Initial load duke parents: diff changeset	550 if((newthr = add_thread_info(ph, (pthread_t) -1, prstat->pr_pid)) == NULL)
a61af66fc99e Initial load duke parents: diff changeset	551 return false;
a61af66fc99e Initial load duke parents: diff changeset	552
a61af66fc99e Initial load duke parents: diff changeset	553 // copy regs
a61af66fc99e Initial load duke parents: diff changeset	554 memcpy(&newthr->regs, prstat->pr_reg, sizeof(struct user_regs_struct));
a61af66fc99e Initial load duke parents: diff changeset	555
a61af66fc99e Initial load duke parents: diff changeset	556 if (is_debug()) {
a61af66fc99e Initial load duke parents: diff changeset	557 print_debug("integer regset\n");
a61af66fc99e Initial load duke parents: diff changeset	558 #ifdef i386
a61af66fc99e Initial load duke parents: diff changeset	559 // print the regset
a61af66fc99e Initial load duke parents: diff changeset	560 print_debug("\teax = 0x%x\n", newthr->regs.eax);
a61af66fc99e Initial load duke parents: diff changeset	561 print_debug("\tebx = 0x%x\n", newthr->regs.ebx);
a61af66fc99e Initial load duke parents: diff changeset	562 print_debug("\tecx = 0x%x\n", newthr->regs.ecx);
a61af66fc99e Initial load duke parents: diff changeset	563 print_debug("\tedx = 0x%x\n", newthr->regs.edx);
a61af66fc99e Initial load duke parents: diff changeset	564 print_debug("\tesp = 0x%x\n", newthr->regs.esp);
a61af66fc99e Initial load duke parents: diff changeset	565 print_debug("\tebp = 0x%x\n", newthr->regs.ebp);
a61af66fc99e Initial load duke parents: diff changeset	566 print_debug("\tesi = 0x%x\n", newthr->regs.esi);
a61af66fc99e Initial load duke parents: diff changeset	567 print_debug("\tedi = 0x%x\n", newthr->regs.edi);
a61af66fc99e Initial load duke parents: diff changeset	568 print_debug("\teip = 0x%x\n", newthr->regs.eip);
a61af66fc99e Initial load duke parents: diff changeset	569 #endif
a61af66fc99e Initial load duke parents: diff changeset	570
a61af66fc99e Initial load duke parents: diff changeset	571 #if defined(amd64) \|\| defined(x86_64)
a61af66fc99e Initial load duke parents: diff changeset	572 // print the regset
a61af66fc99e Initial load duke parents: diff changeset	573 print_debug("\tr15 = 0x%lx\n", newthr->regs.r15);
a61af66fc99e Initial load duke parents: diff changeset	574 print_debug("\tr14 = 0x%lx\n", newthr->regs.r14);
a61af66fc99e Initial load duke parents: diff changeset	575 print_debug("\tr13 = 0x%lx\n", newthr->regs.r13);
a61af66fc99e Initial load duke parents: diff changeset	576 print_debug("\tr12 = 0x%lx\n", newthr->regs.r12);
a61af66fc99e Initial load duke parents: diff changeset	577 print_debug("\trbp = 0x%lx\n", newthr->regs.rbp);
a61af66fc99e Initial load duke parents: diff changeset	578 print_debug("\trbx = 0x%lx\n", newthr->regs.rbx);
a61af66fc99e Initial load duke parents: diff changeset	579 print_debug("\tr11 = 0x%lx\n", newthr->regs.r11);
a61af66fc99e Initial load duke parents: diff changeset	580 print_debug("\tr10 = 0x%lx\n", newthr->regs.r10);
a61af66fc99e Initial load duke parents: diff changeset	581 print_debug("\tr9 = 0x%lx\n", newthr->regs.r9);
a61af66fc99e Initial load duke parents: diff changeset	582 print_debug("\tr8 = 0x%lx\n", newthr->regs.r8);
a61af66fc99e Initial load duke parents: diff changeset	583 print_debug("\trax = 0x%lx\n", newthr->regs.rax);
a61af66fc99e Initial load duke parents: diff changeset	584 print_debug("\trcx = 0x%lx\n", newthr->regs.rcx);
a61af66fc99e Initial load duke parents: diff changeset	585 print_debug("\trdx = 0x%lx\n", newthr->regs.rdx);
a61af66fc99e Initial load duke parents: diff changeset	586 print_debug("\trsi = 0x%lx\n", newthr->regs.rsi);
a61af66fc99e Initial load duke parents: diff changeset	587 print_debug("\trdi = 0x%lx\n", newthr->regs.rdi);
a61af66fc99e Initial load duke parents: diff changeset	588 print_debug("\torig_rax = 0x%lx\n", newthr->regs.orig_rax);
a61af66fc99e Initial load duke parents: diff changeset	589 print_debug("\trip = 0x%lx\n", newthr->regs.rip);
a61af66fc99e Initial load duke parents: diff changeset	590 print_debug("\tcs = 0x%lx\n", newthr->regs.cs);
a61af66fc99e Initial load duke parents: diff changeset	591 print_debug("\teflags = 0x%lx\n", newthr->regs.eflags);
a61af66fc99e Initial load duke parents: diff changeset	592 print_debug("\trsp = 0x%lx\n", newthr->regs.rsp);
a61af66fc99e Initial load duke parents: diff changeset	593 print_debug("\tss = 0x%lx\n", newthr->regs.ss);
a61af66fc99e Initial load duke parents: diff changeset	594 print_debug("\tfs_base = 0x%lx\n", newthr->regs.fs_base);
a61af66fc99e Initial load duke parents: diff changeset	595 print_debug("\tgs_base = 0x%lx\n", newthr->regs.gs_base);
a61af66fc99e Initial load duke parents: diff changeset	596 print_debug("\tds = 0x%lx\n", newthr->regs.ds);
a61af66fc99e Initial load duke parents: diff changeset	597 print_debug("\tes = 0x%lx\n", newthr->regs.es);
a61af66fc99e Initial load duke parents: diff changeset	598 print_debug("\tfs = 0x%lx\n", newthr->regs.fs);
a61af66fc99e Initial load duke parents: diff changeset	599 print_debug("\tgs = 0x%lx\n", newthr->regs.gs);
a61af66fc99e Initial load duke parents: diff changeset	600 #endif
a61af66fc99e Initial load duke parents: diff changeset	601 }
a61af66fc99e Initial load duke parents: diff changeset	602
a61af66fc99e Initial load duke parents: diff changeset	603 return true;
a61af66fc99e Initial load duke parents: diff changeset	604 }
a61af66fc99e Initial load duke parents: diff changeset	605
a61af66fc99e Initial load duke parents: diff changeset	606 #define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
a61af66fc99e Initial load duke parents: diff changeset	607
a61af66fc99e Initial load duke parents: diff changeset	608 // read NT_PRSTATUS entries from core NOTE segment
a61af66fc99e Initial load duke parents: diff changeset	609 static bool core_handle_note(struct ps_prochandle* ph, ELF_PHDR* note_phdr) {
a61af66fc99e Initial load duke parents: diff changeset	610 char* buf = NULL;
a61af66fc99e Initial load duke parents: diff changeset	611 char* p = NULL;
a61af66fc99e Initial load duke parents: diff changeset	612 size_t size = note_phdr->p_filesz;
a61af66fc99e Initial load duke parents: diff changeset	613
a61af66fc99e Initial load duke parents: diff changeset	614 // we are interested in just prstatus entries. we will ignore the rest.
a61af66fc99e Initial load duke parents: diff changeset	615 // Advance the seek pointer to the start of the PT_NOTE data
a61af66fc99e Initial load duke parents: diff changeset	616 if (lseek(ph->core->core_fd, note_phdr->p_offset, SEEK_SET) == (off_t)-1) {
a61af66fc99e Initial load duke parents: diff changeset	617 print_debug("failed to lseek to PT_NOTE data\n");
a61af66fc99e Initial load duke parents: diff changeset	618 return false;
a61af66fc99e Initial load duke parents: diff changeset	619 }
a61af66fc99e Initial load duke parents: diff changeset	620
a61af66fc99e Initial load duke parents: diff changeset	621 // Now process the PT_NOTE structures. Each one is preceded by
a61af66fc99e Initial load duke parents: diff changeset	622 // an Elf{32/64}_Nhdr structure describing its type and size.
a61af66fc99e Initial load duke parents: diff changeset	623 if ( (buf = (char*) malloc(size)) == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	624 print_debug("can't allocate memory for reading core notes\n");
a61af66fc99e Initial load duke parents: diff changeset	625 goto err;
a61af66fc99e Initial load duke parents: diff changeset	626 }
a61af66fc99e Initial load duke parents: diff changeset	627
a61af66fc99e Initial load duke parents: diff changeset	628 // read notes into buffer
a61af66fc99e Initial load duke parents: diff changeset	629 if (read(ph->core->core_fd, buf, size) != size) {
a61af66fc99e Initial load duke parents: diff changeset	630 print_debug("failed to read notes, core file must have been truncated\n");
a61af66fc99e Initial load duke parents: diff changeset	631 goto err;
a61af66fc99e Initial load duke parents: diff changeset	632 }
a61af66fc99e Initial load duke parents: diff changeset	633
a61af66fc99e Initial load duke parents: diff changeset	634 p = buf;
a61af66fc99e Initial load duke parents: diff changeset	635 while (p < buf + size) {
a61af66fc99e Initial load duke parents: diff changeset	636 ELF_NHDR* notep = (ELF_NHDR*) p;
a61af66fc99e Initial load duke parents: diff changeset	637 char* descdata = p + sizeof(ELF_NHDR) + ROUNDUP(notep->n_namesz, 4);
a61af66fc99e Initial load duke parents: diff changeset	638 print_debug("Note header with n_type = %d and n_descsz = %u\n",
a61af66fc99e Initial load duke parents: diff changeset	639 notep->n_type, notep->n_descsz);
a61af66fc99e Initial load duke parents: diff changeset	640
a61af66fc99e Initial load duke parents: diff changeset	641 if (notep->n_type == NT_PRSTATUS) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	642 if (core_handle_prstatus(ph, descdata, notep->n_descsz) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	643 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	644 }
0 a61af66fc99e Initial load duke parents: diff changeset	645 }
a61af66fc99e Initial load duke parents: diff changeset	646 p = descdata + ROUNDUP(notep->n_descsz, 4);
a61af66fc99e Initial load duke parents: diff changeset	647 }
a61af66fc99e Initial load duke parents: diff changeset	648
a61af66fc99e Initial load duke parents: diff changeset	649 free(buf);
a61af66fc99e Initial load duke parents: diff changeset	650 return true;
a61af66fc99e Initial load duke parents: diff changeset	651
a61af66fc99e Initial load duke parents: diff changeset	652 err:
a61af66fc99e Initial load duke parents: diff changeset	653 if (buf) free(buf);
a61af66fc99e Initial load duke parents: diff changeset	654 return false;
a61af66fc99e Initial load duke parents: diff changeset	655 }
a61af66fc99e Initial load duke parents: diff changeset	656
a61af66fc99e Initial load duke parents: diff changeset	657 // read all segments from core file
a61af66fc99e Initial load duke parents: diff changeset	658 static bool read_core_segments(struct ps_prochandle* ph, ELF_EHDR* core_ehdr) {
a61af66fc99e Initial load duke parents: diff changeset	659 int i = 0;
a61af66fc99e Initial load duke parents: diff changeset	660 ELF_PHDR* phbuf = NULL;
a61af66fc99e Initial load duke parents: diff changeset	661 ELF_PHDR* core_php = NULL;
a61af66fc99e Initial load duke parents: diff changeset	662
a61af66fc99e Initial load duke parents: diff changeset	663 if ((phbuf = read_program_header_table(ph->core->core_fd, core_ehdr)) == NULL)
a61af66fc99e Initial load duke parents: diff changeset	664 return false;
a61af66fc99e Initial load duke parents: diff changeset	665
a61af66fc99e Initial load duke parents: diff changeset	666 /*
a61af66fc99e Initial load duke parents: diff changeset	667 * Now iterate through the program headers in the core file.
a61af66fc99e Initial load duke parents: diff changeset	668 * We're interested in two types of Phdrs: PT_NOTE (which
a61af66fc99e Initial load duke parents: diff changeset	669 * contains a set of saved /proc structures), and PT_LOAD (which
a61af66fc99e Initial load duke parents: diff changeset	670 * represents a memory mapping from the process's address space).
a61af66fc99e Initial load duke parents: diff changeset	671 *
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	672 * Difference b/w Solaris PT_NOTE and Linux/BSD PT_NOTE:
0 a61af66fc99e Initial load duke parents: diff changeset	673 *
a61af66fc99e Initial load duke parents: diff changeset	674 * In Solaris there are two PT_NOTE segments the first PT_NOTE (if present)
a61af66fc99e Initial load duke parents: diff changeset	675 * contains /proc structs in the pre-2.6 unstructured /proc format. the last
a61af66fc99e Initial load duke parents: diff changeset	676 * PT_NOTE has data in new /proc format.
a61af66fc99e Initial load duke parents: diff changeset	677 *
a61af66fc99e Initial load duke parents: diff changeset	678 * In Solaris, there is only one pstatus (process status). pstatus contains
a61af66fc99e Initial load duke parents: diff changeset	679 * integer register set among other stuff. For each LWP, we have one lwpstatus
a61af66fc99e Initial load duke parents: diff changeset	680 * entry that has integer regset for that LWP.
a61af66fc99e Initial load duke parents: diff changeset	681 *
a61af66fc99e Initial load duke parents: diff changeset	682 * Linux threads are actually 'clone'd processes. To support core analysis
a61af66fc99e Initial load duke parents: diff changeset	683 * of "multithreaded" process, Linux creates more than one pstatus (called
a61af66fc99e Initial load duke parents: diff changeset	684 * "prstatus") entry in PT_NOTE. Each prstatus entry has integer regset for one
a61af66fc99e Initial load duke parents: diff changeset	685 * "thread". Please refer to Linux kernel src file 'fs/binfmt_elf.c', in particular
a61af66fc99e Initial load duke parents: diff changeset	686 * function "elf_core_dump".
a61af66fc99e Initial load duke parents: diff changeset	687 */
a61af66fc99e Initial load duke parents: diff changeset	688
a61af66fc99e Initial load duke parents: diff changeset	689 for (core_php = phbuf, i = 0; i < core_ehdr->e_phnum; i++) {
a61af66fc99e Initial load duke parents: diff changeset	690 switch (core_php->p_type) {
a61af66fc99e Initial load duke parents: diff changeset	691 case PT_NOTE:
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	692 if (core_handle_note(ph, core_php) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	693 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	694 }
0 a61af66fc99e Initial load duke parents: diff changeset	695 break;
a61af66fc99e Initial load duke parents: diff changeset	696
a61af66fc99e Initial load duke parents: diff changeset	697 case PT_LOAD: {
a61af66fc99e Initial load duke parents: diff changeset	698 if (core_php->p_filesz != 0) {
a61af66fc99e Initial load duke parents: diff changeset	699 if (add_map_info(ph, ph->core->core_fd, core_php->p_offset,
a61af66fc99e Initial load duke parents: diff changeset	700 core_php->p_vaddr, core_php->p_filesz) == NULL) goto err;
a61af66fc99e Initial load duke parents: diff changeset	701 }
a61af66fc99e Initial load duke parents: diff changeset	702 break;
a61af66fc99e Initial load duke parents: diff changeset	703 }
a61af66fc99e Initial load duke parents: diff changeset	704 }
a61af66fc99e Initial load duke parents: diff changeset	705
a61af66fc99e Initial load duke parents: diff changeset	706 core_php++;
a61af66fc99e Initial load duke parents: diff changeset	707 }
a61af66fc99e Initial load duke parents: diff changeset	708
a61af66fc99e Initial load duke parents: diff changeset	709 free(phbuf);
a61af66fc99e Initial load duke parents: diff changeset	710 return true;
a61af66fc99e Initial load duke parents: diff changeset	711 err:
a61af66fc99e Initial load duke parents: diff changeset	712 free(phbuf);
a61af66fc99e Initial load duke parents: diff changeset	713 return false;
a61af66fc99e Initial load duke parents: diff changeset	714 }
a61af66fc99e Initial load duke parents: diff changeset	715
a61af66fc99e Initial load duke parents: diff changeset	716 // read segments of a shared object
a61af66fc99e Initial load duke parents: diff changeset	717 static bool read_lib_segments(struct ps_prochandle* ph, int lib_fd, ELF_EHDR* lib_ehdr, uintptr_t lib_base) {
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	718 int i = 0;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	719 ELF_PHDR* phbuf;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	720 ELF_PHDR* lib_php = NULL;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	721
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	722 int page_size = sysconf(_SC_PAGE_SIZE);
0 a61af66fc99e Initial load duke parents: diff changeset	723
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	724 if ((phbuf = read_program_header_table(lib_fd, lib_ehdr)) == NULL) {
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	725 return false;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	726 }
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	727
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	728 // we want to process only PT_LOAD segments that are not writable.
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	729 // i.e., text segments. The read/write/exec (data) segments would
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	730 // have been already added from core file segments.
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	731 for (lib_php = phbuf, i = 0; i < lib_ehdr->e_phnum; i++) {
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	732 if ((lib_php->p_type == PT_LOAD) && !(lib_php->p_flags & PF_W) && (lib_php->p_filesz != 0)) {
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	733
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	734 uintptr_t target_vaddr = lib_php->p_vaddr + lib_base;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	735 map_info *existing_map = core_lookup(ph, target_vaddr);
0 a61af66fc99e Initial load duke parents: diff changeset	736
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	737 if (existing_map == NULL){
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	738 if (add_map_info(ph, lib_fd, lib_php->p_offset,
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	739 target_vaddr, lib_php->p_memsz) == NULL) {
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	740 goto err;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	741 }
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	742 } else {
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	743 // Coredump stores value of p_memsz elf field
1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	744 // rounded up to page boundary.
1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	745
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	746 if ((existing_map->memsz != page_size) &&
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	747 (existing_map->fd != lib_fd) &&
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	748 (ROUNDUP(existing_map->memsz, page_size) != ROUNDUP(lib_php->p_memsz, page_size))) {
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	749
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	750 print_debug("address conflict @ 0x%lx (existing map size = %ld, size = %ld, flags = %d)\n",
1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	751 target_vaddr, existing_map->memsz, lib_php->p_memsz, lib_php->p_flags);
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	752 goto err;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	753 }
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	754
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	755 /* replace PT_LOAD segment with library segment */
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	756 print_debug("overwrote with new address mapping (memsz %ld -> %ld)\n",
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	757 existing_map->memsz, ROUNDUP(lib_php->p_memsz, page_size));
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	758
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	759 existing_map->fd = lib_fd;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	760 existing_map->offset = lib_php->p_offset;
12936 1bee3014cf2a 8025812: tmtools/jmap/heap_config tests fail on Linux-ia32 because it Cant attach to the core file dsamersoff parents: 12807 diff changeset	761 existing_map->memsz = ROUNDUP(lib_php->p_memsz, page_size);
0 a61af66fc99e Initial load duke parents: diff changeset	762 }
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	763 }
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	764
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	765 lib_php++;
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	766 }
0 a61af66fc99e Initial load duke parents: diff changeset	767
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	768 free(phbuf);
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	769 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	770 err:
12290 1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	771 free(phbuf);
1f42d3ec1759 7133122: SA throws sun.jvm.hotspot.debugger.UnmappedAddressException when it should not dsamersoff parents: 10229 diff changeset	772 return false;
0 a61af66fc99e Initial load duke parents: diff changeset	773 }
a61af66fc99e Initial load duke parents: diff changeset	774
a61af66fc99e Initial load duke parents: diff changeset	775 // process segments from interpreter (ld.so or ld-linux.so)
a61af66fc99e Initial load duke parents: diff changeset	776 static bool read_interp_segments(struct ps_prochandle* ph) {
a61af66fc99e Initial load duke parents: diff changeset	777 ELF_EHDR interp_ehdr;
a61af66fc99e Initial load duke parents: diff changeset	778
a61af66fc99e Initial load duke parents: diff changeset	779 if (read_elf_header(ph->core->interp_fd, &interp_ehdr) != true) {
a61af66fc99e Initial load duke parents: diff changeset	780 print_debug("interpreter is not a valid ELF file\n");
a61af66fc99e Initial load duke parents: diff changeset	781 return false;
a61af66fc99e Initial load duke parents: diff changeset	782 }
a61af66fc99e Initial load duke parents: diff changeset	783
a61af66fc99e Initial load duke parents: diff changeset	784 if (read_lib_segments(ph, ph->core->interp_fd, &interp_ehdr, ph->core->ld_base_addr) != true) {
a61af66fc99e Initial load duke parents: diff changeset	785 print_debug("can't read segments of interpreter\n");
a61af66fc99e Initial load duke parents: diff changeset	786 return false;
a61af66fc99e Initial load duke parents: diff changeset	787 }
a61af66fc99e Initial load duke parents: diff changeset	788
a61af66fc99e Initial load duke parents: diff changeset	789 return true;
a61af66fc99e Initial load duke parents: diff changeset	790 }
a61af66fc99e Initial load duke parents: diff changeset	791
a61af66fc99e Initial load duke parents: diff changeset	792 // process segments of a a.out
a61af66fc99e Initial load duke parents: diff changeset	793 static bool read_exec_segments(struct ps_prochandle* ph, ELF_EHDR* exec_ehdr) {
a61af66fc99e Initial load duke parents: diff changeset	794 int i = 0;
a61af66fc99e Initial load duke parents: diff changeset	795 ELF_PHDR* phbuf = NULL;
a61af66fc99e Initial load duke parents: diff changeset	796 ELF_PHDR* exec_php = NULL;
a61af66fc99e Initial load duke parents: diff changeset	797
a61af66fc99e Initial load duke parents: diff changeset	798 if ((phbuf = read_program_header_table(ph->core->exec_fd, exec_ehdr)) == NULL)
a61af66fc99e Initial load duke parents: diff changeset	799 return false;
a61af66fc99e Initial load duke parents: diff changeset	800
a61af66fc99e Initial load duke parents: diff changeset	801 for (exec_php = phbuf, i = 0; i < exec_ehdr->e_phnum; i++) {
a61af66fc99e Initial load duke parents: diff changeset	802 switch (exec_php->p_type) {
a61af66fc99e Initial load duke parents: diff changeset	803
a61af66fc99e Initial load duke parents: diff changeset	804 // add mappings for PT_LOAD segments
a61af66fc99e Initial load duke parents: diff changeset	805 case PT_LOAD: {
a61af66fc99e Initial load duke parents: diff changeset	806 // add only non-writable segments of non-zero filesz
a61af66fc99e Initial load duke parents: diff changeset	807 if (!(exec_php->p_flags & PF_W) && exec_php->p_filesz != 0) {
a61af66fc99e Initial load duke parents: diff changeset	808 if (add_map_info(ph, ph->core->exec_fd, exec_php->p_offset, exec_php->p_vaddr, exec_php->p_filesz) == NULL) goto err;
a61af66fc99e Initial load duke parents: diff changeset	809 }
a61af66fc99e Initial load duke parents: diff changeset	810 break;
a61af66fc99e Initial load duke parents: diff changeset	811 }
a61af66fc99e Initial load duke parents: diff changeset	812
a61af66fc99e Initial load duke parents: diff changeset	813 // read the interpreter and it's segments
a61af66fc99e Initial load duke parents: diff changeset	814 case PT_INTERP: {
a61af66fc99e Initial load duke parents: diff changeset	815 char interp_name[BUF_SIZE];
a61af66fc99e Initial load duke parents: diff changeset	816
a61af66fc99e Initial load duke parents: diff changeset	817 pread(ph->core->exec_fd, interp_name, MIN(exec_php->p_filesz, BUF_SIZE), exec_php->p_offset);
a61af66fc99e Initial load duke parents: diff changeset	818 print_debug("ELF interpreter %s\n", interp_name);
a61af66fc99e Initial load duke parents: diff changeset	819 // read interpreter segments as well
a61af66fc99e Initial load duke parents: diff changeset	820 if ((ph->core->interp_fd = pathmap_open(interp_name)) < 0) {
a61af66fc99e Initial load duke parents: diff changeset	821 print_debug("can't open runtime loader\n");
a61af66fc99e Initial load duke parents: diff changeset	822 goto err;
a61af66fc99e Initial load duke parents: diff changeset	823 }
a61af66fc99e Initial load duke parents: diff changeset	824 break;
a61af66fc99e Initial load duke parents: diff changeset	825 }
a61af66fc99e Initial load duke parents: diff changeset	826
a61af66fc99e Initial load duke parents: diff changeset	827 // from PT_DYNAMIC we want to read address of first link_map addr
a61af66fc99e Initial load duke parents: diff changeset	828 case PT_DYNAMIC: {
a61af66fc99e Initial load duke parents: diff changeset	829 ph->core->dynamic_addr = exec_php->p_vaddr;
a61af66fc99e Initial load duke parents: diff changeset	830 print_debug("address of _DYNAMIC is 0x%lx\n", ph->core->dynamic_addr);
a61af66fc99e Initial load duke parents: diff changeset	831 break;
a61af66fc99e Initial load duke parents: diff changeset	832 }
a61af66fc99e Initial load duke parents: diff changeset	833
a61af66fc99e Initial load duke parents: diff changeset	834 } // switch
a61af66fc99e Initial load duke parents: diff changeset	835 exec_php++;
a61af66fc99e Initial load duke parents: diff changeset	836 } // for
a61af66fc99e Initial load duke parents: diff changeset	837
a61af66fc99e Initial load duke parents: diff changeset	838 free(phbuf);
a61af66fc99e Initial load duke parents: diff changeset	839 return true;
a61af66fc99e Initial load duke parents: diff changeset	840 err:
a61af66fc99e Initial load duke parents: diff changeset	841 free(phbuf);
a61af66fc99e Initial load duke parents: diff changeset	842 return false;
a61af66fc99e Initial load duke parents: diff changeset	843 }
a61af66fc99e Initial load duke parents: diff changeset	844
a61af66fc99e Initial load duke parents: diff changeset	845
a61af66fc99e Initial load duke parents: diff changeset	846 #define FIRST_LINK_MAP_OFFSET offsetof(struct r_debug, r_map)
a61af66fc99e Initial load duke parents: diff changeset	847 #define LD_BASE_OFFSET offsetof(struct r_debug, r_ldbase)
a61af66fc99e Initial load duke parents: diff changeset	848 #define LINK_MAP_ADDR_OFFSET offsetof(struct link_map, l_addr)
a61af66fc99e Initial load duke parents: diff changeset	849 #define LINK_MAP_NAME_OFFSET offsetof(struct link_map, l_name)
a61af66fc99e Initial load duke parents: diff changeset	850 #define LINK_MAP_NEXT_OFFSET offsetof(struct link_map, l_next)
a61af66fc99e Initial load duke parents: diff changeset	851
a61af66fc99e Initial load duke parents: diff changeset	852 // read shared library info from runtime linker's data structures.
a61af66fc99e Initial load duke parents: diff changeset	853 // This work is done by librtlb_db in Solaris
a61af66fc99e Initial load duke parents: diff changeset	854 static bool read_shared_lib_info(struct ps_prochandle* ph) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	855 uintptr_t addr = ph->core->dynamic_addr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	856 uintptr_t debug_base;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	857 uintptr_t first_link_map_addr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	858 uintptr_t ld_base_addr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	859 uintptr_t link_map_addr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	860 uintptr_t lib_base_diff;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	861 uintptr_t lib_base;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	862 uintptr_t lib_name_addr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	863 char lib_name[BUF_SIZE];
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	864 ELF_DYN dyn;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	865 ELF_EHDR elf_ehdr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	866 int lib_fd;
0 a61af66fc99e Initial load duke parents: diff changeset	867
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	868 // _DYNAMIC has information of the form
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	869 // [tag] [data] [tag] [data] .....
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	870 // Both tag and data are pointer sized.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	871 // We look for dynamic info with DT_DEBUG. This has shared object info.
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	872 // refer to struct r_debug in link.h
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	873
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	874 dyn.d_tag = DT_NULL;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	875 while (dyn.d_tag != DT_DEBUG) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	876 if (ps_pdread(ph, (psaddr_t) addr, &dyn, sizeof(ELF_DYN)) != PS_OK) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	877 print_debug("can't read debug info from _DYNAMIC\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	878 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	879 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	880 addr += sizeof(ELF_DYN);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	881 }
0 a61af66fc99e Initial load duke parents: diff changeset	882
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	883 // we have got Dyn entry with DT_DEBUG
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	884 debug_base = dyn.d_un.d_ptr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	885 // at debug_base we have struct r_debug. This has first link map in r_map field
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	886 if (ps_pdread(ph, (psaddr_t) debug_base + FIRST_LINK_MAP_OFFSET,
0 a61af66fc99e Initial load duke parents: diff changeset	887 &first_link_map_addr, sizeof(uintptr_t)) != PS_OK) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	888 print_debug("can't read first link map address\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	889 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	890 }
0 a61af66fc99e Initial load duke parents: diff changeset	891
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	892 // read ld_base address from struct r_debug
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	893 if (ps_pdread(ph, (psaddr_t) debug_base + LD_BASE_OFFSET, &ld_base_addr,
0 a61af66fc99e Initial load duke parents: diff changeset	894 sizeof(uintptr_t)) != PS_OK) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	895 print_debug("can't read ld base address\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	896 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	897 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	898 ph->core->ld_base_addr = ld_base_addr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	899
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	900 print_debug("interpreter base address is 0x%lx\n", ld_base_addr);
0 a61af66fc99e Initial load duke parents: diff changeset	901
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	902 // now read segments from interp (i.e ld.so or ld-linux.so or ld-elf.so)
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	903 if (read_interp_segments(ph) != true) {
0 a61af66fc99e Initial load duke parents: diff changeset	904 return false;
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	905 }
0 a61af66fc99e Initial load duke parents: diff changeset	906
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	907 // after adding interpreter (ld.so) mappings sort again
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	908 if (sort_map_array(ph) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	909 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	910 }
0 a61af66fc99e Initial load duke parents: diff changeset	911
a61af66fc99e Initial load duke parents: diff changeset	912 print_debug("first link map is at 0x%lx\n", first_link_map_addr);
a61af66fc99e Initial load duke parents: diff changeset	913
a61af66fc99e Initial load duke parents: diff changeset	914 link_map_addr = first_link_map_addr;
a61af66fc99e Initial load duke parents: diff changeset	915 while (link_map_addr != 0) {
a61af66fc99e Initial load duke parents: diff changeset	916 // read library base address of the .so. Note that even though <sys/link.h> calls
a61af66fc99e Initial load duke parents: diff changeset	917 // link_map->l_addr as "base address", this is * not * really base virtual
a61af66fc99e Initial load duke parents: diff changeset	918 // address of the shared object. This is actually the difference b/w the virtual
a61af66fc99e Initial load duke parents: diff changeset	919 // address mentioned in shared object and the actual virtual base where runtime
a61af66fc99e Initial load duke parents: diff changeset	920 // linker loaded it. We use "base diff" in read_lib_segments call below.
a61af66fc99e Initial load duke parents: diff changeset	921
a61af66fc99e Initial load duke parents: diff changeset	922 if (ps_pdread(ph, (psaddr_t) link_map_addr + LINK_MAP_ADDR_OFFSET,
a61af66fc99e Initial load duke parents: diff changeset	923 &lib_base_diff, sizeof(uintptr_t)) != PS_OK) {
a61af66fc99e Initial load duke parents: diff changeset	924 print_debug("can't read shared object base address diff\n");
a61af66fc99e Initial load duke parents: diff changeset	925 return false;
a61af66fc99e Initial load duke parents: diff changeset	926 }
a61af66fc99e Initial load duke parents: diff changeset	927
a61af66fc99e Initial load duke parents: diff changeset	928 // read address of the name
a61af66fc99e Initial load duke parents: diff changeset	929 if (ps_pdread(ph, (psaddr_t) link_map_addr + LINK_MAP_NAME_OFFSET,
a61af66fc99e Initial load duke parents: diff changeset	930 &lib_name_addr, sizeof(uintptr_t)) != PS_OK) {
a61af66fc99e Initial load duke parents: diff changeset	931 print_debug("can't read address of shared object name\n");
a61af66fc99e Initial load duke parents: diff changeset	932 return false;
a61af66fc99e Initial load duke parents: diff changeset	933 }
a61af66fc99e Initial load duke parents: diff changeset	934
a61af66fc99e Initial load duke parents: diff changeset	935 // read name of the shared object
1385 bc32f286fae0 6945219: minor SA fixes never parents: 579 diff changeset	936 lib_name[0] = '\0';
bc32f286fae0 6945219: minor SA fixes never parents: 579 diff changeset	937 if (lib_name_addr != 0 &&
bc32f286fae0 6945219: minor SA fixes never parents: 579 diff changeset	938 read_string(ph, (uintptr_t) lib_name_addr, lib_name, sizeof(lib_name)) != true) {
0 a61af66fc99e Initial load duke parents: diff changeset	939 print_debug("can't read shared object name\n");
1385 bc32f286fae0 6945219: minor SA fixes never parents: 579 diff changeset	940 // don't let failure to read the name stop opening the file. If something is really wrong
bc32f286fae0 6945219: minor SA fixes never parents: 579 diff changeset	941 // it will fail later.
0 a61af66fc99e Initial load duke parents: diff changeset	942 }
a61af66fc99e Initial load duke parents: diff changeset	943
a61af66fc99e Initial load duke parents: diff changeset	944 if (lib_name[0] != '\0') {
a61af66fc99e Initial load duke parents: diff changeset	945 // ignore empty lib names
a61af66fc99e Initial load duke parents: diff changeset	946 lib_fd = pathmap_open(lib_name);
a61af66fc99e Initial load duke parents: diff changeset	947
a61af66fc99e Initial load duke parents: diff changeset	948 if (lib_fd < 0) {
a61af66fc99e Initial load duke parents: diff changeset	949 print_debug("can't open shared object %s\n", lib_name);
a61af66fc99e Initial load duke parents: diff changeset	950 // continue with other libraries...
a61af66fc99e Initial load duke parents: diff changeset	951 } else {
a61af66fc99e Initial load duke parents: diff changeset	952 if (read_elf_header(lib_fd, &elf_ehdr)) {
a61af66fc99e Initial load duke parents: diff changeset	953 lib_base = lib_base_diff + find_base_address(lib_fd, &elf_ehdr);
a61af66fc99e Initial load duke parents: diff changeset	954 print_debug("reading library %s @ 0x%lx [ 0x%lx ]\n",
a61af66fc99e Initial load duke parents: diff changeset	955 lib_name, lib_base, lib_base_diff);
a61af66fc99e Initial load duke parents: diff changeset	956 // while adding library mappings we need to use "base difference".
a61af66fc99e Initial load duke parents: diff changeset	957 if (! read_lib_segments(ph, lib_fd, &elf_ehdr, lib_base_diff)) {
a61af66fc99e Initial load duke parents: diff changeset	958 print_debug("can't read shared object's segments\n");
a61af66fc99e Initial load duke parents: diff changeset	959 close(lib_fd);
a61af66fc99e Initial load duke parents: diff changeset	960 return false;
a61af66fc99e Initial load duke parents: diff changeset	961 }
a61af66fc99e Initial load duke parents: diff changeset	962 add_lib_info_fd(ph, lib_name, lib_fd, lib_base);
a61af66fc99e Initial load duke parents: diff changeset	963 // Map info is added for the library (lib_name) so
a61af66fc99e Initial load duke parents: diff changeset	964 // we need to re-sort it before calling the p_pdread.
a61af66fc99e Initial load duke parents: diff changeset	965 if (sort_map_array(ph) != true)
a61af66fc99e Initial load duke parents: diff changeset	966 return false;
a61af66fc99e Initial load duke parents: diff changeset	967 } else {
a61af66fc99e Initial load duke parents: diff changeset	968 print_debug("can't read ELF header for shared object %s\n", lib_name);
a61af66fc99e Initial load duke parents: diff changeset	969 close(lib_fd);
a61af66fc99e Initial load duke parents: diff changeset	970 // continue with other libraries...
a61af66fc99e Initial load duke parents: diff changeset	971 }
a61af66fc99e Initial load duke parents: diff changeset	972 }
a61af66fc99e Initial load duke parents: diff changeset	973 }
a61af66fc99e Initial load duke parents: diff changeset	974
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	975 // read next link_map address
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	976 if (ps_pdread(ph, (psaddr_t) link_map_addr + LINK_MAP_NEXT_OFFSET,
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	977 &link_map_addr, sizeof(uintptr_t)) != PS_OK) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	978 print_debug("can't read next link in link_map\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	979 return false;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	980 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	981 }
0 a61af66fc99e Initial load duke parents: diff changeset	982
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	983 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	984 }
a61af66fc99e Initial load duke parents: diff changeset	985
a61af66fc99e Initial load duke parents: diff changeset	986 // the one and only one exposed stuff from this file
a61af66fc99e Initial load duke parents: diff changeset	987 struct ps_prochandle* Pgrab_core(const char* exec_file, const char* core_file) {
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	988 ELF_EHDR core_ehdr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	989 ELF_EHDR exec_ehdr;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	990 ELF_EHDR lib_ehdr;
0 a61af66fc99e Initial load duke parents: diff changeset	991
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	992 struct ps_prochandle* ph = (struct ps_prochandle*) calloc(1, sizeof(struct ps_prochandle));
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	993 if (ph == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	994 print_debug("can't allocate ps_prochandle\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	995 return NULL;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	996 }
0 a61af66fc99e Initial load duke parents: diff changeset	997
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	998 if ((ph->core = (struct core_data*) calloc(1, sizeof(struct core_data))) == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	999 free(ph);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1000 print_debug("can't allocate ps_prochandle\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1001 return NULL;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1002 }
0 a61af66fc99e Initial load duke parents: diff changeset	1003
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1004 // initialize ph
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1005 ph->ops = &core_ops;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1006 ph->core->core_fd = -1;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1007 ph->core->exec_fd = -1;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1008 ph->core->interp_fd = -1;
0 a61af66fc99e Initial load duke parents: diff changeset	1009
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1010 // open the core file
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1011 if ((ph->core->core_fd = open(core_file, O_RDONLY)) < 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1012 print_debug("can't open core file\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1013 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1014 }
0 a61af66fc99e Initial load duke parents: diff changeset	1015
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1016 // read core file ELF header
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1017 if (read_elf_header(ph->core->core_fd, &core_ehdr) != true \|\| core_ehdr.e_type != ET_CORE) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1018 print_debug("core file is not a valid ELF ET_CORE file\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1019 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1020 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1021
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1022 if ((ph->core->exec_fd = open(exec_file, O_RDONLY)) < 0) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1023 print_debug("can't open executable file\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1024 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1025 }
0 a61af66fc99e Initial load duke parents: diff changeset	1026
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1027 if (read_elf_header(ph->core->exec_fd, &exec_ehdr) != true \|\| exec_ehdr.e_type != ET_EXEC) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1028 print_debug("executable file is not a valid ELF ET_EXEC file\n");
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1029 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1030 }
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1031
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1032 // process core file segments
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1033 if (read_core_segments(ph, &core_ehdr) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1034 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1035 }
0 a61af66fc99e Initial load duke parents: diff changeset	1036
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1037 // process exec file segments
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1038 if (read_exec_segments(ph, &exec_ehdr) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1039 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1040 }
0 a61af66fc99e Initial load duke parents: diff changeset	1041
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1042 // exec file is also treated like a shared object for symbol search
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1043 if (add_lib_info_fd(ph, exec_file, ph->core->exec_fd,
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1044 (uintptr_t)0 + find_base_address(ph->core->exec_fd, &exec_ehdr)) == NULL) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1045 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1046 }
0 a61af66fc99e Initial load duke parents: diff changeset	1047
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1048 // allocate and sort maps into map_array, we need to do this
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1049 // here because read_shared_lib_info needs to read from debuggee
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1050 // address space
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1051 if (sort_map_array(ph) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1052 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1053 }
0 a61af66fc99e Initial load duke parents: diff changeset	1054
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1055 if (read_shared_lib_info(ph) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1056 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1057 }
0 a61af66fc99e Initial load duke parents: diff changeset	1058
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1059 // sort again because we have added more mappings from shared objects
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1060 if (sort_map_array(ph) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1061 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1062 }
0 a61af66fc99e Initial load duke parents: diff changeset	1063
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1064 if (init_classsharing_workaround(ph) != true) {
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1065 goto err;
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1066 }
0 a61af66fc99e Initial load duke parents: diff changeset	1067
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1068 return ph;
0 a61af66fc99e Initial load duke parents: diff changeset	1069
a61af66fc99e Initial load duke parents: diff changeset	1070 err:
12807 5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1071 Prelease(ph);
5705c7ee6dd7 8025250: SA: Sync linux and bsd versions of ps_core file dsamersoff parents: 12290 diff changeset	1072 return NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	1073 }

Mercurial > hg > truffle

annotate agent/src/os/linux/ps_core.c @ 12936:1bee3014cf2a