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Split lgammal() from INIT_LGAMMAL 

Summary:
Introduce SANITIZER_INTERCEPT_LGAMMAL
dedicated for lgammal(). Disable it for NetBSD
as this routine is not implemented in this OS.

Installation of supernumerary interceptors causes
leaking of errors to dlsym(3)-like operations.

Reviewers: joerg, vitalybuka

Reviewed By: vitalybuka

Subscribers: kubamracek, llvm-commits, mgorny, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D54054

llvm-svn: 346352
This commit is contained in:
Kamil Rytarowski 2018-11-07 20:19:53 +00:00
parent c4dfb42897
commit e06fb482a9
2 changed files with 12 additions and 4 deletions
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15
compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
View File

@ -4876,6 +4876,14 @@ INTERCEPTOR(float, lgammaf, float x) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
return res;
}
#define INIT_LGAMMA \
COMMON_INTERCEPT_FUNCTION(lgamma); \
COMMON_INTERCEPT_FUNCTION(lgammaf);
#else
#define INIT_LGAMMA
#endif
#if SANITIZER_INTERCEPT_LGAMMAL
INTERCEPTOR(long double, lgammal, long double x) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, lgammal, x);
@ -4883,12 +4891,10 @@ INTERCEPTOR(long double, lgammal, long double x) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
return res;
}
#define INIT_LGAMMA \
COMMON_INTERCEPT_FUNCTION(lgamma); \
COMMON_INTERCEPT_FUNCTION(lgammaf); \
#define INIT_LGAMMAL \
COMMON_INTERCEPT_FUNCTION_LDBL(lgammal);
#else
#define INIT_LGAMMA
#define INIT_LGAMMAL
#endif
#if SANITIZER_INTERCEPT_LGAMMA_R
@ -7435,6 +7441,7 @@ static void InitializeCommonInterceptors() {
INIT_REMQUO;
INIT_REMQUOL;
INIT_LGAMMA;
INIT_LGAMMAL;
INIT_LGAMMA_R;
INIT_LGAMMAL_R;
INIT_DRAND48_R;

1
compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h
View File

@ -362,6 +362,7 @@
#define SANITIZER_INTERCEPT_REMQUO SI_POSIX
#define SANITIZER_INTERCEPT_REMQUOL (SI_POSIX && !SI_NETBSD)
#define SANITIZER_INTERCEPT_LGAMMA SI_POSIX
#define SANITIZER_INTERCEPT_LGAMMAL (SI_POSIX && !SI_NETBSD)
#define SANITIZER_INTERCEPT_LGAMMA_R (SI_FREEBSD || SI_LINUX || SI_SOLARIS)
#define SANITIZER_INTERCEPT_LGAMMAL_R SI_LINUX_NOT_ANDROID || SI_SOLARIS
#define SANITIZER_INTERCEPT_DRAND48_R SI_LINUX_NOT_ANDROID