src/platform-linux.cc - Issue 16107002: Prevent segfault if file cannot be opened when --ll_prof is used.

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Unified Diff: src/platform-linux.cc

Issue 16107002: Prevent segfault if file cannot be opened when --ll_prof is used. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 7 years, 7 months ago

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Index: src/platform-linux.cc

diff --git a/src/platform-linux.cc b/src/platform-linux.cc

index a4d03b0aca49ae2d670ea1963e3ccd11b567cddf..22f2245f487bd9787bc1e97012f0e2fbf393914d 100644

--- a/src/platform-linux.cc

+++ b/src/platform-linux.cc

@@ -591,6 +591,10 @@ void OS::SignalCodeMovingGC() {

// kernel log.

int size = sysconf(_SC_PAGESIZE);

FILE* f = fopen(FLAG_gc_fake_mmap, "w+");

+ if (f == NULL) {

+ OS::PrintError("Failed to open %s\n", FLAG_gc_fake_mmap);

+ OS::Abort();

+ }

void* addr = mmap(OS::GetRandomMmapAddr(),

size,

PROT_READ | PROT_EXEC,

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