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[HWASan] Initalize shadow earler. 

Summary:
Initialize shadow memory before calling more libc functions to allow
for HWASan-instrumented libc.

Reviewers: eugenis

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

Differential Revision: https://reviews.llvm.org/D48551

llvm-svn: 335502
This commit is contained in:
Alex Shlyapnikov 2018-06-25 17:27:13 +00:00
parent 3cc6cb1d35
commit d42edb28d0
1 changed files with 4 additions and 4 deletions
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8
compiler-rt/lib/hwasan/hwasan.cc
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@ -177,10 +177,6 @@ void __hwasan_init() {
__sanitizer_set_report_path(common_flags()->log_path); __sanitizer_set_report_path(common_flags()->log_path);
InitializeInterceptors();
InstallDeadlySignalHandlers(HwasanOnDeadlySignal);
InstallAtExitHandler(); // Needs __cxa_atexit interceptor.
DisableCoreDumperIfNecessary(); DisableCoreDumperIfNecessary();
if (!InitShadow()) { if (!InitShadow()) {
Printf("FATAL: HWAddressSanitizer cannot mmap the shadow memory.\n"); Printf("FATAL: HWAddressSanitizer cannot mmap the shadow memory.\n");
@ -194,6 +190,10 @@ void __hwasan_init() {
Die(); Die();
} }
InitializeInterceptors();
InstallDeadlySignalHandlers(HwasanOnDeadlySignal);
InstallAtExitHandler(); // Needs __cxa_atexit interceptor.
Symbolizer::GetOrInit()->AddHooks(EnterSymbolizer, ExitSymbolizer); Symbolizer::GetOrInit()->AddHooks(EnterSymbolizer, ExitSymbolizer);
InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir); InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);