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[sanitizer] Intercept tcgetattr. 

llvm-svn: 185626
This commit is contained in:
Evgeniy Stepanov 2013-07-04 14:03:31 +00:00
parent db429d9483
commit 717e0cd2a7
5 changed files with 42 additions and 3 deletions
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21
compiler-rt/lib/msan/lit_tests/Linux/tcgetattr.cc Normal file
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@ -0,0 +1,21 @@
// RUN: %clangxx_msan -m64 -O0 %s -o %t && %t %p
#include <assert.h>
#include <glob.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
int main(int argc, char *argv[]) {
int fd = getpt();
assert(fd >= 0);
struct termios t;
int res = tcgetattr(fd, &t);
assert(!res);
if (t.c_iflag == 0)
exit(0);
return 0;
}

21
compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
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@ -1495,7 +1495,6 @@ INTERCEPTOR(SIZE_T, mbsrtowcs, wchar_t *dest, const char **src, SIZE_T len,
#endif
#if SANITIZER_INTERCEPT_MBSNRTOWCS
INTERCEPTOR(SIZE_T, mbsnrtowcs, wchar_t *dest, const char **src, SIZE_T nms,
SIZE_T len, void *ps) {
void *ctx;
@ -1546,7 +1545,6 @@ INTERCEPTOR(SIZE_T, wcsrtombs, char *dest, const wchar_t **src, SIZE_T len,
#endif
#if SANITIZER_INTERCEPT_WCSNRTOMBS
INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms,
SIZE_T len, void *ps) {
void *ctx;
@ -1566,6 +1564,22 @@ INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms,
#define INIT_WCSNRTOMBS
#endif
#if SANITIZER_INTERCEPT_TCGETATTR
INTERCEPTOR(int, tcgetattr, int fd, void *termios_p) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, tcgetattr, fd, termios_p);
int res = REAL(tcgetattr)(fd, termios_p);
if (!res && termios_p)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, termios_p, struct_termios_sz);
return res;
}
#define INIT_TCGETATTR INTERCEPT_FUNCTION(tcgetattr);
#else
#define INIT_TCGETATTR
#endif
#define SANITIZER_COMMON_INTERCEPTORS_INIT \
INIT_STRCASECMP; \
INIT_STRNCASECMP; \
@ -1619,4 +1633,5 @@ INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms,
INIT_MBSTOWCS; \
INIT_MBSNRTOWCS; \
INIT_WCSTOMBS; \
INIT_WCSNRTOMBS;
INIT_WCSNRTOMBS; \
INIT_TCGETATTR;

1
compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h
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@ -104,5 +104,6 @@
# define SANITIZER_INTERCEPT_MBSNRTOWCS SI_MAC || SI_LINUX_NOT_ANDROID
# define SANITIZER_INTERCEPT_WCSTOMBS SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_WCSNRTOMBS SI_MAC || SI_LINUX_NOT_ANDROID
# define SANITIZER_INTERCEPT_TCGETATTR SI_LINUX
#endif // #ifndef SANITIZER_PLATFORM_INTERCEPTORS_H

1
compiler-rt/lib/tsan/rtl/tsan_stat.cc
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@ -348,6 +348,7 @@ void StatOutput(u64 *stat) {
name[StatInt_wcstombs] = " wcstombs ";
name[StatInt_wcsrtombs] = " wcsrtombs ";
name[StatInt_wcsnrtombs] = " wcsnrtombs ";
name[StatInt_tcgetattr] = " tcgetattr ";
name[StatAnnotation] = "Dynamic annotations ";
name[StatAnnotateHappensBefore] = " HappensBefore ";

1
compiler-rt/lib/tsan/rtl/tsan_stat.h
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@ -343,6 +343,7 @@ enum StatType {
StatInt_wcstombs,
StatInt_wcsrtombs,
StatInt_wcsnrtombs,
StatInt_tcgetattr,
// Dynamic annotations.
StatAnnotation,