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libsanitizer merge from upstream r196489

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From-SVN: r205700
This commit is contained in:
Kostya Serebryany 2013-12-05 10:28:59 +00:00 committed by Kostya Serebryany
parent 022351a235
commit c4c16f7456
18 changed files with 329 additions and 116 deletions
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5
libsanitizer/ChangeLog
View File

@ -1,3 +1,8 @@
2013-12-05 Kostya Serebryany <kcc@google.com>
* All source files: Merge from upstream r196489.
* merge.sh: Add *.S to the list of merged files.
2013-12-05 Yury Gribov <y.gribov@samsung.com>
PR sanitizer/59368

2
libsanitizer/MERGE
View File

@ -1,4 +1,4 @@
196090
196489
The first line of this file holds the svn revision number of the
last merge done from the master library sources.

4
libsanitizer/asan/asan_mapping.h
View File

@ -63,8 +63,8 @@ static const u64 kPPC64_ShadowOffset64 = 1ULL << 41;
static const u64 kMIPS32_ShadowOffset32 = 0x0aaa8000;
#if ASAN_FLEXIBLE_MAPPING_AND_OFFSET == 1
extern SANITIZER_INTERFACE_ATTRIBUTE uptr __asan_mapping_scale;
extern SANITIZER_INTERFACE_ATTRIBUTE uptr __asan_mapping_offset;
extern "C" SANITIZER_INTERFACE_ATTRIBUTE uptr __asan_mapping_scale;
extern "C" SANITIZER_INTERFACE_ATTRIBUTE uptr __asan_mapping_offset;
# define SHADOW_SCALE (__asan_mapping_scale)
# define SHADOW_OFFSET (__asan_mapping_offset)
#else

8
libsanitizer/asan/asan_stack.cc
View File

@ -43,3 +43,11 @@ bool __asan_symbolize(const void *pc, char *out_buffer, int out_size) {
return false;
}
#endif
extern "C" {
SANITIZER_INTERFACE_ATTRIBUTE
void __sanitizer_print_stack_trace() {
using namespace __asan;
PRINT_CURRENT_STACK();
}
} // extern "C"

9
libsanitizer/asan/asan_stack.h
View File

@ -75,11 +75,10 @@ void PrintStack(const uptr *trace, uptr size);
#define GET_STACK_TRACE_FREE GET_STACK_TRACE_MALLOC
#define PRINT_CURRENT_STACK() \
{ \
GET_STACK_TRACE(kStackTraceMax, \
common_flags()->fast_unwind_on_fatal); \
PrintStack(&stack); \
#define PRINT_CURRENT_STACK() \
{ \
GET_STACK_TRACE_FATAL_HERE; \
PrintStack(&stack); \
}
#endif // ASAN_STACK_H

3
libsanitizer/include/sanitizer/common_interface_defs.h
View File

@ -83,6 +83,9 @@ extern "C" {
const void *old_mid,
const void *new_mid);
// Print the stack trace leading to this call. Useful for debugging user code.
void __sanitizer_print_stack_trace();
#ifdef __cplusplus
} // extern "C"
#endif

2
libsanitizer/merge.sh
View File

@ -16,7 +16,7 @@ get_current_rev() {
}
list_files() {
(cd $1; ls *.{cc,h,inc} 2> /dev/null)
(cd $1; ls *.{cc,h,inc,S} 2> /dev/null)
}

7
libsanitizer/sanitizer_common/sanitizer_common.cc
View File

@ -40,6 +40,13 @@ char report_path_prefix[sizeof(report_path_prefix)];
// child thread will be different from |report_fd_pid|.
uptr report_fd_pid = 0;
// PID of the tracer task in StopTheWorld. It shares the address space with the
// main process, but has a different PID and thus requires special handling.
uptr stoptheworld_tracer_pid = 0;
// Cached pid of parent process - if the parent process dies, we want to keep
// writing to the same log file.
uptr stoptheworld_tracer_ppid = 0;
static DieCallbackType DieCallback;
void SetDieCallback(DieCallbackType callback) {
DieCallback = callback;

5
libsanitizer/sanitizer_common/sanitizer_common.h
View File

@ -134,6 +134,8 @@ extern fd_t report_fd;
extern bool log_to_file;
extern char report_path_prefix[4096];
extern uptr report_fd_pid;
extern uptr stoptheworld_tracer_pid;
extern uptr stoptheworld_tracer_ppid;
uptr OpenFile(const char *filename, bool write);
// Opens the file 'file_name" and reads up to 'max_len' bytes.
@ -318,8 +320,7 @@ template<typename T>
class InternalMmapVector {
public:
explicit InternalMmapVector(uptr initial_capacity) {
CHECK_GT(initial_capacity, 0);
capacity_ = initial_capacity;
capacity_ = Max(initial_capacity, (uptr)1);
size_ = 0;
data_ = (T *)MmapOrDie(capacity_ * sizeof(T), "InternalMmapVector");
}

17
libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc
View File

@ -58,6 +58,22 @@
#define COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg) ((void)(msg))
#endif
#if SANITIZER_INTERCEPT_TEXTDOMAIN
INTERCEPTOR(char*, textdomain, const char *domainname) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, textdomain, domainname);
char* domain = REAL(textdomain)(domainname);
if (domain) {
COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, domain,
REAL(strlen)(domain) + 1);
}
return domain;
}
#define INIT_TEXTDOMAIN COMMON_INTERCEPT_FUNCTION(textdomain)
#else
#define INIT_TEXTDOMAIN
#endif
#if SANITIZER_INTERCEPT_STRCMP
static inline int CharCmpX(unsigned char c1, unsigned char c2) {
return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1;
@ -2891,6 +2907,7 @@ INTERCEPTOR(__sanitizer_clock_t, times, void *tms) {
#endif
#define SANITIZER_COMMON_INTERCEPTORS_INIT \
INIT_TEXTDOMAIN; \
INIT_STRCMP; \
INIT_STRNCMP; \
INIT_STRCASECMP; \

1
libsanitizer/sanitizer_common/sanitizer_platform_interceptors.h
View File

@ -46,6 +46,7 @@
#endif
# define SANITIZER_INTERCEPT_STRCMP 1
# define SANITIZER_INTERCEPT_TEXTDOMAIN SI_LINUX_NOT_ANDROID
# define SANITIZER_INTERCEPT_STRCASECMP SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_READ SI_NOT_WINDOWS

24
libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
View File

@ -140,23 +140,32 @@ namespace __sanitizer {
int gid;
int cuid;
int cgid;
#ifdef __powerpc64__
#ifdef __powerpc__
unsigned mode;
unsigned __seq;
u64 __unused1;
u64 __unused2;
#else
unsigned short mode;
unsigned short __pad1;
unsigned short __seq;
unsigned short __pad2;
#if defined(__x86_64__) && !defined(_LP64)
u64 __unused1;
u64 __unused2;
#else
unsigned long __unused1;
unsigned long __unused2;
#endif
#endif
uptr __unused1;
uptr __unused2;
};
struct __sanitizer_shmid_ds {
__sanitizer_ipc_perm shm_perm;
#ifndef __powerpc__
uptr shm_segsz;
#elif !defined(__powerpc64__)
uptr __unused0;
#endif
uptr shm_atime;
#ifndef _LP64
@ -288,17 +297,20 @@ namespace __sanitizer {
typedef long __sanitizer_clock_t;
#if SANITIZER_LINUX
#if defined(_LP64) || defined(__x86_64__)
#if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)
typedef unsigned __sanitizer___kernel_uid_t;
typedef unsigned __sanitizer___kernel_gid_t;
typedef long long __sanitizer___kernel_off_t;
#else
typedef unsigned short __sanitizer___kernel_uid_t;
typedef unsigned short __sanitizer___kernel_gid_t;
#endif
#if defined(__x86_64__) && !defined(_LP64)
typedef long long __sanitizer___kernel_off_t;
#else
typedef long __sanitizer___kernel_off_t;
#endif
#if defined(__powerpc64__)
#if defined(__powerpc__)
typedef unsigned int __sanitizer___kernel_old_uid_t;
typedef unsigned int __sanitizer___kernel_old_gid_t;
#else

18
libsanitizer/sanitizer_common/sanitizer_posix.cc
View File

@ -196,10 +196,15 @@ char *FindPathToBinary(const char *name) {
}
void MaybeOpenReportFile() {
if (!log_to_file || (report_fd_pid == internal_getpid())) return;
if (!log_to_file) return;
uptr pid = internal_getpid();
// If in tracer, use the parent's file.
if (pid == stoptheworld_tracer_pid)
pid = stoptheworld_tracer_ppid;
if (report_fd_pid == pid) return;
InternalScopedBuffer<char> report_path_full(4096);
internal_snprintf(report_path_full.data(), report_path_full.size(),
"%s.%d", report_path_prefix, internal_getpid());
"%s.%d", report_path_prefix, pid);
uptr openrv = OpenFile(report_path_full.data(), true);
if (internal_iserror(openrv)) {
report_fd = kStderrFd;
@ -212,7 +217,7 @@ void MaybeOpenReportFile() {
internal_close(report_fd);
}
report_fd = openrv;
report_fd_pid = internal_getpid();
report_fd_pid = pid;
}
void RawWrite(const char *buffer) {
@ -228,12 +233,11 @@ void RawWrite(const char *buffer) {
bool GetCodeRangeForFile(const char *module, uptr *start, uptr *end) {
uptr s, e, off, prot;
InternalMmapVector<char> fn(4096);
fn.push_back(0);
InternalScopedString buff(4096);
MemoryMappingLayout proc_maps(/*cache_enabled*/false);
while (proc_maps.Next(&s, &e, &off, &fn[0], fn.capacity(), &prot)) {
while (proc_maps.Next(&s, &e, &off, buff.data(), buff.size(), &prot)) {
if ((prot & MemoryMappingLayout::kProtectionExecute) != 0
&& internal_strcmp(module, &fn[0]) == 0) {
&& internal_strcmp(module, buff.data()) == 0) {
*start = s;
*end = e;
return true;

15
libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
View File

@ -354,6 +354,20 @@ class StopTheWorldScope {
int process_was_dumpable_;
};
// When sanitizer output is being redirected to file (i.e. by using log_path),
// the tracer should write to the parent's log instead of trying to open a new
// file. Alert the logging code to the fact that we have a tracer.
struct ScopedSetTracerPID {
explicit ScopedSetTracerPID(uptr tracer_pid) {
stoptheworld_tracer_pid = tracer_pid;
stoptheworld_tracer_ppid = internal_getpid();
}
~ScopedSetTracerPID() {
stoptheworld_tracer_pid = 0;
stoptheworld_tracer_ppid = 0;
}
};
void StopTheWorld(StopTheWorldCallback callback, void *argument) {
StopTheWorldScope in_stoptheworld;
// Prepare the arguments for TracerThread.
@ -377,6 +391,7 @@ void StopTheWorld(StopTheWorldCallback callback, void *argument) {
Report("Failed spawning a tracer thread (errno %d).\n", local_errno);
tracer_thread_argument.mutex.Unlock();
} else {
ScopedSetTracerPID scoped_set_tracer_pid(tracer_pid);
// On some systems we have to explicitly declare that we want to be traced
// by the tracer thread.
#ifdef PR_SET_PTRACER

5
libsanitizer/tsan/tsan_rtl.h
View File

@ -26,6 +26,7 @@
#include "sanitizer_common/sanitizer_allocator.h"
#include "sanitizer_common/sanitizer_allocator_internal.h"
#include "sanitizer_common/sanitizer_asm.h"
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_libignore.h"
#include "sanitizer_common/sanitizer_suppressions.h"
@ -734,11 +735,11 @@ void AcquireReleaseImpl(ThreadState *thr, uptr pc, SyncClock *c);
// so we create a reserve stack frame for it (1024b must be enough).
#define HACKY_CALL(f) \
__asm__ __volatile__("sub $1024, %%rsp;" \
".cfi_adjust_cfa_offset 1024;" \
CFI_INL_ADJUST_CFA_OFFSET(1024) \
".hidden " #f "_thunk;" \
"call " #f "_thunk;" \
"add $1024, %%rsp;" \
".cfi_adjust_cfa_offset -1024;" \
CFI_INL_ADJUST_CFA_OFFSET(-1024) \
::: "memory", "cc");
#else
#define HACKY_CALL(f) f()

318
libsanitizer/tsan/tsan_rtl_amd64.S
View File

@ -1,42 +1,42 @@
.section .text
#include "sanitizer_common/sanitizer_asm.h"
.hidden __tsan_trace_switch
.globl __tsan_trace_switch_thunk
__tsan_trace_switch_thunk:
.cfi_startproc
CFI_STARTPROC
# Save scratch registers.
push %rax
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rax, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rax, 0)
push %rcx
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rcx, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rcx, 0)
push %rdx
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rdx, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdx, 0)
push %rsi
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rsi, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rsi, 0)
push %rdi
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rdi, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdi, 0)
push %r8
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r8, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r8, 0)
push %r9
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r9, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r9, 0)
push %r10
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r10, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r10, 0)
push %r11
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r11, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r11, 0)
# Align stack frame.
push %rbx # non-scratch
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rbx, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rbx, 0)
mov %rsp, %rbx # save current rsp
.cfi_def_cfa_register %rbx
CFI_DEF_CFA_REGISTER(%rbx)
shr $4, %rsp # clear 4 lsb, align to 16
shl $4, %rsp
@ -44,78 +44,79 @@ __tsan_trace_switch_thunk:
# Unalign stack frame back.
mov %rbx, %rsp # restore the original rsp
.cfi_def_cfa_register %rsp
CFI_DEF_CFA_REGISTER(%rsp)
pop %rbx
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
# Restore scratch registers.
pop %r11
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %r10
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %r9
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %r8
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rdi
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rsi
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rdx
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rcx
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rax
.cfi_adjust_cfa_offset -8
.cfi_restore %rax
.cfi_restore %rbx
.cfi_restore %rcx
.cfi_restore %rdx
.cfi_restore %rsi
.cfi_restore %rdi
.cfi_restore %r8
.cfi_restore %r9
.cfi_restore %r10
.cfi_restore %r11
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rax)
CFI_RESTORE(%rbx)
CFI_RESTORE(%rcx)
CFI_RESTORE(%rdx)
CFI_RESTORE(%rsi)
CFI_RESTORE(%rdi)
CFI_RESTORE(%r8)
CFI_RESTORE(%r9)
CFI_RESTORE(%r10)
CFI_RESTORE(%r11)
ret
.cfi_endproc
CFI_ENDPROC
.hidden __tsan_report_race
.globl __tsan_report_race_thunk
__tsan_report_race_thunk:
.cfi_startproc
CFI_STARTPROC
# Save scratch registers.
push %rax
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rax, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rax, 0)
push %rcx
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rcx, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rcx, 0)
push %rdx
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rdx, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdx, 0)
push %rsi
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rsi, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rsi, 0)
push %rdi
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rdi, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdi, 0)
push %r8
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r8, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r8, 0)
push %r9
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r9, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r9, 0)
push %r10
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r10, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r10, 0)
push %r11
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %r11, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%r11, 0)
# Align stack frame.
push %rbx # non-scratch
.cfi_adjust_cfa_offset 8
.cfi_rel_offset %rbx, 0
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rbx, 0)
mov %rsp, %rbx # save current rsp
.cfi_def_cfa_register %rbx
CFI_DEF_CFA_REGISTER(%rbx)
shr $4, %rsp # clear 4 lsb, align to 16
shl $4, %rsp
@ -123,40 +124,177 @@ __tsan_report_race_thunk:
# Unalign stack frame back.
mov %rbx, %rsp # restore the original rsp
.cfi_def_cfa_register %rsp
CFI_DEF_CFA_REGISTER(%rsp)
pop %rbx
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
# Restore scratch registers.
pop %r11
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %r10
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %r9
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %r8
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rdi
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rsi
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rdx
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rcx
.cfi_adjust_cfa_offset -8
CFI_ADJUST_CFA_OFFSET(-8)
pop %rax
.cfi_adjust_cfa_offset -8
.cfi_restore %rax
.cfi_restore %rbx
.cfi_restore %rcx
.cfi_restore %rdx
.cfi_restore %rsi
.cfi_restore %rdi
.cfi_restore %r8
.cfi_restore %r9
.cfi_restore %r10
.cfi_restore %r11
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rax)
CFI_RESTORE(%rbx)
CFI_RESTORE(%rcx)
CFI_RESTORE(%rdx)
CFI_RESTORE(%rsi)
CFI_RESTORE(%rdi)
CFI_RESTORE(%r8)
CFI_RESTORE(%r9)
CFI_RESTORE(%r10)
CFI_RESTORE(%r11)
ret
.cfi_endproc
CFI_ENDPROC
.hidden __tsan_setjmp
.comm _ZN14__interception11real_setjmpE,8,8
.globl setjmp
.type setjmp, @function
setjmp:
CFI_STARTPROC
// save env parameter
push %rdi
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdi, 0)
// obtain %rsp
lea 16(%rsp), %rdi
mov %rdi, %rsi
xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
rol $0x11, %rsi
// call tsan interceptor
call __tsan_setjmp
// restore env parameter
pop %rdi
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rdi)
// tail jump to libc setjmp
movl $0, %eax
movq _ZN14__interception11real_setjmpE@GOTPCREL(%rip), %rdx
jmp *(%rdx)
CFI_ENDPROC
.size setjmp, .-setjmp
.comm _ZN14__interception12real__setjmpE,8,8
.globl _setjmp
.type _setjmp, @function
_setjmp:
CFI_STARTPROC
// save env parameter
push %rdi
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdi, 0)
// obtain %rsp
lea 16(%rsp), %rdi
mov %rdi, %rsi
xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
rol $0x11, %rsi
// call tsan interceptor
call __tsan_setjmp
// restore env parameter
pop %rdi
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rdi)
// tail jump to libc setjmp
movl $0, %eax
movq _ZN14__interception12real__setjmpE@GOTPCREL(%rip), %rdx
jmp *(%rdx)
CFI_ENDPROC
.size _setjmp, .-_setjmp
.comm _ZN14__interception14real_sigsetjmpE,8,8
.globl sigsetjmp
.type sigsetjmp, @function
sigsetjmp:
CFI_STARTPROC
// save env parameter
push %rdi
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdi, 0)
// save savesigs parameter
push %rsi
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rsi, 0)
// align stack frame
sub $8, %rsp
CFI_ADJUST_CFA_OFFSET(8)
// obtain %rsp
lea 32(%rsp), %rdi
mov %rdi, %rsi
xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
rol $0x11, %rsi
// call tsan interceptor
call __tsan_setjmp
// unalign stack frame
add $8, %rsp
CFI_ADJUST_CFA_OFFSET(-8)
// restore savesigs parameter
pop %rsi
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rsi)
// restore env parameter
pop %rdi
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rdi)
// tail jump to libc sigsetjmp
movl $0, %eax
movq _ZN14__interception14real_sigsetjmpE@GOTPCREL(%rip), %rdx
jmp *(%rdx)
CFI_ENDPROC
.size sigsetjmp, .-sigsetjmp
.comm _ZN14__interception16real___sigsetjmpE,8,8
.globl __sigsetjmp
.type __sigsetjmp, @function
__sigsetjmp:
CFI_STARTPROC
// save env parameter
push %rdi
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rdi, 0)
// save savesigs parameter
push %rsi
CFI_ADJUST_CFA_OFFSET(8)
CFI_REL_OFFSET(%rsi, 0)
// align stack frame
sub $8, %rsp
CFI_ADJUST_CFA_OFFSET(8)
// obtain %rsp
lea 32(%rsp), %rdi
mov %rdi, %rsi
xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
rol $0x11, %rsi
// call tsan interceptor
call __tsan_setjmp
// unalign stack frame
add $8, %rsp
CFI_ADJUST_CFA_OFFSET(-8)
// restore savesigs parameter
pop %rsi
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rsi)
// restore env parameter
pop %rdi
CFI_ADJUST_CFA_OFFSET(-8)
CFI_RESTORE(%rdi)
// tail jump to libc sigsetjmp
movl $0, %eax
movq _ZN14__interception16real___sigsetjmpE@GOTPCREL(%rip), %rdx
jmp *(%rdx)
CFI_ENDPROC
.size __sigsetjmp, .-__sigsetjmp
#ifdef __linux__
/* We do not need executable stack. */

1
libsanitizer/tsan/tsan_stat.cc
View File

@ -124,6 +124,7 @@ void StatOutput(u64 *stat) {
name[StatInt_strlen] = " strlen ";
name[StatInt_memset] = " memset ";
name[StatInt_memcpy] = " memcpy ";
name[StatInt_textdomain] = " textdomain ";
name[StatInt_strcmp] = " strcmp ";
name[StatInt_memchr] = " memchr ";
name[StatInt_memrchr] = " memrchr ";

1
libsanitizer/tsan/tsan_stat.h
View File

@ -121,6 +121,7 @@ enum StatType {
StatInt_strlen,
StatInt_memset,
StatInt_memcpy,
StatInt_textdomain,
StatInt_strcmp,
StatInt_memchr,
StatInt_memrchr,