# HG changeset patch # User dcubed # Date 1337106444 25200 # Node ID 80b9cc90b643b4cd4db5280853b79a18ad1139f2 # Parent b4f7c4315c362def58c2a53753325c68750081e1# Parent 7d4e6dabc6bf0d5a203db623a81d13378fdfd033 Merge diff -r b4f7c4315c36 -r 80b9cc90b643 make/solaris/makefiles/add_gnu_debuglink.make --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/make/solaris/makefiles/add_gnu_debuglink.make Tue May 15 11:27:24 2012 -0700 @@ -0,0 +1,51 @@ +# +# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. +# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. +# +# This code is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License version 2 only, as +# published by the Free Software Foundation. +# +# This code is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# version 2 for more details (a copy is included in the LICENSE file that +# accompanied this code). +# +# You should have received a copy of the GNU General Public License version +# 2 along with this work; if not, write to the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. +# +# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA +# or visit www.oracle.com if you need additional information or have any +# questions. +# +# + +# Rules to build add_gnu_debuglink, used by vm.make on Solaris + +GENERATED = ../generated +ADD_GNU_DEBUGLINK = $(GENERATED)/add_gnu_debuglink + +ADD_GNU_DEBUGLINK_DIR = $(GAMMADIR)/src/os/solaris/add_gnu_debuglink +ADD_GNU_DEBUGLINK_SRC = $(ADD_GNU_DEBUGLINK_DIR)/add_gnu_debuglink.c +ADD_GNU_DEBUGLINK_FLAGS = +LIBS_ADD_GNU_DEBUGLINK += -lelf + +ifeq ("${Platform_compiler}", "sparcWorks") +# Enable the following ADD_GNU_DEBUGLINK_FLAGS addition if you need to +# compare the built ELF objects. +# +# The -g option makes static data global and the "-W0,-noglobal" +# option tells the compiler to not globalize static data using a unique +# globalization prefix. Instead force the use of a static globalization +# prefix based on the source filepath so the objects from two identical +# compilations are the same. +# +# Note: The blog says to use "-W0,-xglobalstatic", but that doesn't +# seem to work. I got "-W0,-noglobal" from Kelly and that works. +#ADD_GNU_DEBUGLINK_FLAGS += -W0,-noglobal +endif # Platform_compiler == sparcWorks + +$(ADD_GNU_DEBUGLINK): $(ADD_GNU_DEBUGLINK_SRC) + $(CC) -g -o $@ $< $(ADD_GNU_DEBUGLINK_FLAGS) $(LIBS_ADD_GNU_DEBUGLINK) diff -r b4f7c4315c36 -r 80b9cc90b643 make/solaris/makefiles/defs.make --- a/make/solaris/makefiles/defs.make Sat May 12 06:50:41 2012 -0400 +++ b/make/solaris/makefiles/defs.make Tue May 15 11:27:24 2012 -0700 @@ -109,18 +109,12 @@ # overridden in some situations, e.g., a BUILD_FLAVOR != product # build. - # Disable FULL_DEBUG_SYMBOLS by default because dtrace tests are - # failing in nightly when the debug info files are ZIP'ed. On - # Solaris debug info files need to be ZIP'ed to reduce the impact - # on disk space footprint. - FULL_DEBUG_SYMBOLS ?= 0 ifeq ($(BUILD_FLAVOR), product) - # FULL_DEBUG_SYMBOLS ?= 1 + FULL_DEBUG_SYMBOLS ?= 1 ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS) else # debug variants always get Full Debug Symbols (if available) - # ENABLE_FULL_DEBUG_SYMBOLS = 1 - ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS) + ENABLE_FULL_DEBUG_SYMBOLS = 1 endif _JUNK_ := $(shell \ echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)") @@ -178,9 +172,7 @@ _JUNK_ := $(shell \ echo >&2 "INFO: STRIP_POLICY=$(STRIP_POLICY)") - # Disable ZIP_DEBUGINFO_FILES by default because dtrace tests are - # failing in nightly when the debug info files are ZIP'ed. - ZIP_DEBUGINFO_FILES ?= 0 + ZIP_DEBUGINFO_FILES ?= 1 _JUNK_ := $(shell \ echo >&2 "INFO: ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES)") diff -r b4f7c4315c36 -r 80b9cc90b643 make/solaris/makefiles/vm.make --- a/make/solaris/makefiles/vm.make Sat May 12 06:50:41 2012 -0400 +++ b/make/solaris/makefiles/vm.make Tue May 15 11:27:24 2012 -0700 @@ -145,6 +145,10 @@ include $(MAKEFILES_DIR)/dtrace.make #---------------------------------------------------------------------- +# add_gnu_debuglink tool +include $(MAKEFILES_DIR)/add_gnu_debuglink.make + +#---------------------------------------------------------------------- # JVM JVM = jvm @@ -276,7 +280,7 @@ LINK_VM = $(LINK_LIB.CXX) endif # making the library: -$(LIBJVM): $(LIBJVM.o) $(LIBJVM_MAPFILE) +$(LIBJVM): $(ADD_GNU_DEBUGLINK) $(LIBJVM.o) $(LIBJVM_MAPFILE) ifeq ($(filter -sbfast -xsbfast, $(CFLAGS_BROWSE)),) @echo Linking vm... $(QUIETLY) $(LINK_LIB.CXX/PRE_HOOK) @@ -287,7 +291,11 @@ $(QUIETLY) [ -f $(LIBJVM_G).1 ] || ln -s $@.1 $(LIBJVM_G).1 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1) $(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DEBUGINFO) - $(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@ +# $(OBJCOPY) --add-gnu-debuglink=... corrupts the SUNW_dof section +# in libjvm.so. Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) +# is available. +# $(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@ + $(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DEBUGINFO) $@ ifeq ($(STRIP_POLICY),all_strip) $(QUIETLY) $(STRIP) $@ else diff -r b4f7c4315c36 -r 80b9cc90b643 src/os/solaris/add_gnu_debuglink/add_gnu_debuglink.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/solaris/add_gnu_debuglink/add_gnu_debuglink.c Tue May 15 11:27:24 2012 -0700 @@ -0,0 +1,285 @@ +/* + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +/* + * Name: add_gnu_debuglink.c + * + * Description: Add a ".gnu_debuglink" section that refers to the specified + * debug_info_path to the specified ELF object. + * + * This program is adapted from the example program shown on the + * elf(3elf) man page and from code from the Solaris compiler + * driver. + */ + +/* + * needed to define SHF_EXCLUDE + */ +#define ELF_TARGET_ALL + +#include +#include +#include +#include +#include +#include + +static void failure(void); +static unsigned int gnu_debuglink_crc32(unsigned int crc, unsigned char *buf, + size_t len); + +void +main(int argc, char ** argv) { + /* new ELF section name */ + static char SEC_NAME[] = ".gnu_debuglink"; + + unsigned char buffer[8 * 1024]; /* I/O buffer */ + int buffer_len; /* buffer length */ + char * debug_info_path; /* debug info path */ + void * ehdr; /* ELF header */ + Elf * elf; /* ELF descriptor */ + char * elf_ident; /* ELF identity string */ + char * elf_obj; /* elf_obj file */ + int fd; /* descriptor for files */ + unsigned int file_crc = 0; /* CRC for debug info file */ + int is_elfclass64; /* is an ELFCLASS64 file? */ + Elf_Data * link_dat; /* ELF data for new debug info link */ + Elf_Data * name_dat; /* ELF data for new section name */ + Elf_Scn * new_scn; /* new ELF section descriptor */ + void * new_shdr; /* new ELF section header */ + Elf_Scn * scn; /* ELF section descriptor */ + void * shdr; /* ELF section header */ + + if (argc != 3) { + (void) fprintf(stderr, "Usage: %s debug_info_path elf_obj\n", argv[0]); + exit(2); + } + + debug_info_path = argv[1]; /* save for later */ + if ((fd = open(debug_info_path, O_RDONLY)) == -1) { + (void) fprintf(stderr, "%s: cannot open file.\n", debug_info_path); + exit(3); + } + + (void) printf("Computing CRC for '%s'\n", debug_info_path); + (void) fflush(stdout); + /* compute CRC for the debug info file */ + for (;;) { + int len = read(fd, buffer, sizeof buffer); + if (len <= 0) { + break; + } + file_crc = gnu_debuglink_crc32(file_crc, buffer, len); + } + (void) close(fd); + + /* open the elf_obj */ + elf_obj = argv[2]; + if ((fd = open(elf_obj, O_RDWR)) == -1) { + (void) fprintf(stderr, "%s: cannot open file.\n", elf_obj); + exit(4); + } + + (void) printf("Opening '%s' for update\n", elf_obj); + (void) fflush(stdout); + (void) elf_version(EV_CURRENT); /* coordinate ELF versions */ + + /* obtain the ELF descriptors from the input file */ + if ((elf = elf_begin(fd, ELF_C_RDWR, NULL)) == NULL) { + failure(); + } + + /* determine if ELFCLASS64 or not? */ + elf_ident = elf_getident(elf, NULL); + is_elfclass64 = (elf_ident[EI_CLASS] == ELFCLASS64); + + /* get the ELF header */ + if (is_elfclass64) { + ehdr = elf64_getehdr(elf); + } else { + ehdr = elf32_getehdr(elf); + } + if (ehdr == NULL) { + failure(); + } + + /* get the ELF section descriptor */ + if (is_elfclass64) { + scn = elf_getscn(elf, ((Elf64_Ehdr *) ehdr)->e_shstrndx); + } else { + scn = elf_getscn(elf, ((Elf32_Ehdr *) ehdr)->e_shstrndx); + } + if (scn == NULL) { + failure(); + } + + /* get the section header */ + if (is_elfclass64) { + shdr = elf64_getshdr(scn); + } else { + shdr = elf32_getshdr(scn); + } + if (shdr == NULL) { + failure(); + } + + (void) printf("Adding ELF data for new section name\n"); + (void) fflush(stdout); + name_dat = elf_newdata(scn); + name_dat->d_buf = (void *) SEC_NAME; + if (is_elfclass64) { + name_dat->d_off = ((Elf64_Shdr *) shdr)->sh_size + 1; + } else { + name_dat->d_off = ((Elf32_Shdr *) shdr)->sh_size + 1; + } + name_dat->d_align = 1; + name_dat->d_size = strlen(SEC_NAME) + 1; + + new_scn = elf_newscn(elf); + + if (is_elfclass64) { + new_shdr = elf64_getshdr(new_scn); + ((Elf64_Shdr *) new_shdr)->sh_flags = SHF_EXCLUDE; + ((Elf64_Shdr *) new_shdr)->sh_type = SHT_PROGBITS; + ((Elf64_Shdr *) new_shdr)->sh_name = ((Elf64_Shdr *) shdr)->sh_size; + ((Elf64_Shdr *) new_shdr)->sh_addralign = 1; + ((Elf64_Shdr *) shdr)->sh_size += (strlen(SEC_NAME) + 1); + } else { + new_shdr = elf32_getshdr(new_scn); + ((Elf32_Shdr *) new_shdr)->sh_flags = SHF_EXCLUDE; + ((Elf32_Shdr *) new_shdr)->sh_type = SHT_PROGBITS; + ((Elf32_Shdr *) new_shdr)->sh_name = ((Elf32_Shdr *) shdr)->sh_size; + ((Elf32_Shdr *) new_shdr)->sh_addralign = 1; + ((Elf32_Shdr *) shdr)->sh_size += (strlen(SEC_NAME) + 1); + } + + (void) printf("Adding ELF data for debug_info_path value\n"); + (void) fflush(stdout); + (void) memset(buffer, 0, sizeof buffer); + buffer_len = strlen(debug_info_path) + 1; /* +1 for NUL */ + (void) strncpy((char *) buffer, debug_info_path, buffer_len); + if (buffer_len % 4 != 0) { + /* not on a 4 byte boundary so pad to the next one */ + buffer_len += (4 - buffer_len % 4); + } + /* save the CRC */ + (void) memcpy(&buffer[buffer_len], &file_crc, sizeof file_crc); + buffer_len += sizeof file_crc; + + link_dat = elf_newdata(new_scn); + link_dat->d_type = ELF_T_BYTE; + link_dat->d_size = buffer_len; + link_dat->d_buf = buffer; + link_dat->d_align = 1; + + (void) printf("Saving updates to '%s'\n", elf_obj); + (void) fflush(stdout); + (void) elf_update(elf, ELF_C_NULL); /* recalc ELF memory structures */ + (void) elf_update(elf, ELF_C_WRITE); /* write out changes to ELF obj */ + (void) elf_end(elf); /* done with ELF obj */ + (void) close(fd); + + (void) printf("Done updating '%s'\n", elf_obj); + (void) fflush(stdout); + exit(0); +} /* end main */ + + +static void +failure() { + (void) fprintf(stderr, "%s\n", elf_errmsg(elf_errno())); + exit(5); +} + + +/* + * The CRC used in gnu_debuglink, retrieved from + * http://sourceware.org/gdb/current/onlinedocs/gdb/Separate-Debug-Files.html#Separate-Debug-Files. + */ + +static unsigned int +gnu_debuglink_crc32(unsigned int crc, unsigned char *buf, size_t len) { + static const unsigned int crc32_table[256] = { + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, + 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, + 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, + 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, + 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, + 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, + 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, + 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, + 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, + 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, + 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, + 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, + 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, + 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, + 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, + 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, + 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, + 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, + 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, + 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, + 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, + 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, + 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, + 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, + 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, + 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, + 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, + 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, + 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, + 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, + 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, + 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, + 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, + 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, + 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, + 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, + 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, + 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, + 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, + 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, + 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, + 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, + 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, + 0x2d02ef8d + }; + + unsigned char *end; + + crc = ~crc & 0xffffffff; + for (end = buf + len; buf < end; ++buf) { + crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); + } + return ~crc & 0xffffffff; +}