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comparison src/os_cpu/linux_x86/vm/os_linux_x86.cpp @ 14300:d5b8799dfbd7

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8032827: NMT: missing virtual memory tagging in os::workaround_expand_exec_shield_cs_limit() Summary: Fixed missing virtual memory type tagging in os::workaround_expand_exec_shield_cs_limit() function Reviewed-by: hseigel, coleenp
author zgu
date Tue, 28 Jan 2014 08:55:00 -0500
parents de6a9e811145
children d8041d695d19
comparison
equal deleted inserted replaced
14295:4c241e42a3e4 14300:d5b8799dfbd7
47 #include "runtime/osThread.hpp" 47 #include "runtime/osThread.hpp"
48 #include "runtime/sharedRuntime.hpp" 48 #include "runtime/sharedRuntime.hpp"
49 #include "runtime/stubRoutines.hpp" 49 #include "runtime/stubRoutines.hpp"
50 #include "runtime/thread.inline.hpp" 50 #include "runtime/thread.inline.hpp"
51 #include "runtime/timer.hpp" 51 #include "runtime/timer.hpp"
52 #include "services/memTracker.hpp"
52 #include "utilities/events.hpp" 53 #include "utilities/events.hpp"
53 #include "utilities/vmError.hpp" 54 #include "utilities/vmError.hpp"
54 55
55 // put OS-includes here 56 // put OS-includes here
56 # include <sys/types.h> 57 # include <sys/types.h>
904 ((StackYellowPages + StackRedPages + 1) * page_size)); 905 ((StackYellowPages + StackRedPages + 1) * page_size));
905 char* codebuf = os::reserve_memory(page_size, hint); 906 char* codebuf = os::reserve_memory(page_size, hint);
906 if ( (codebuf == NULL) || (!os::commit_memory(codebuf, page_size, true)) ) { 907 if ( (codebuf == NULL) || (!os::commit_memory(codebuf, page_size, true)) ) {
907 return; // No matter, we tried, best effort. 908 return; // No matter, we tried, best effort.
908 } 909 }
910
911 MemTracker::record_virtual_memory_type((address)codebuf, mtInternal);
912
909 if (PrintMiscellaneous && (Verbose || WizardMode)) { 913 if (PrintMiscellaneous && (Verbose || WizardMode)) {
910 tty->print_cr("[CS limit NX emulation work-around, exec code at: %p]", codebuf); 914 tty->print_cr("[CS limit NX emulation work-around, exec code at: %p]", codebuf);
911 } 915 }
912 916
913 // Some code to exec: the 'ret' instruction 917 // Some code to exec: the 'ret' instruction