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Add NetBSD support in asan_linux.cc 

Summary:
Part of the code inspired by the original work on libsanitizer in GCC 5.4 by Christos Zoulas.

Sponsored by <The NetBSD Foundation>

Reviewers: fjricci, vitalybuka, joerg, kcc, filcab

Reviewed By: vitalybuka

Subscribers: llvm-commits, kubamracek, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D36488

llvm-svn: 310647
This commit is contained in:
Kamil Rytarowski 2017-08-10 18:51:51 +00:00
parent fbd51b954d
commit 4ad374ea76
1 changed files with 15 additions and 2 deletions
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17
compiler-rt/lib/asan/asan_linux.cc
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@ -13,7 +13,7 @@
//===----------------------------------------------------------------------===//
#include "sanitizer_common/sanitizer_platform.h"
#if SANITIZER_FREEBSD || SANITIZER_LINUX
#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD
#include "asan_interceptors.h"
#include "asan_internal.h"
@ -42,6 +42,10 @@
#if SANITIZER_ANDROID || SANITIZER_FREEBSD
#include <ucontext.h>
extern "C" void* _DYNAMIC;
#elif SANITIZER_NETBSD
#include <link_elf.h>
#include <ucontext.h>
extern Elf_Dyn _DYNAMIC;
#else
#include <sys/ucontext.h>
#include <link.h>
@ -101,6 +105,15 @@ static int FindFirstDSOCallback(struct dl_phdr_info *info, size_t size,
if (internal_strncmp(info->dlpi_name, "linux-", sizeof("linux-") - 1) == 0)
return 0;
#if SANITIZER_NETBSD
// Ignore first entry (the main program)
char **p = (char **)data;
if (!(*p)) {
*p = (char *)-1;
return 0;
}
#endif
*(const char **)data = info->dlpi_name;
return 1;
}
@ -179,4 +192,4 @@ void *AsanDlSymNext(const char *sym) {
} // namespace __asan
#endif // SANITIZER_FREEBSD || SANITIZER_LINUX
#endif // SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD