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Fix check-llvm on kernel 4.9+ with asan or msan

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Summary:
Before https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=v4.9.46&id=84638335900f1995495838fe1bd4870c43ec1f67
test worked because memory allocated with mmap was not counted against RLIMIT_DATA.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37366

llvm-svn: 312303
This commit is contained in:
Vitaly Buka 2017-09-01 01:47:34 +00:00
parent c9f3693905
commit 38e733ac37
1 changed files with 10 additions and 4 deletions
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14
tools/bugpoint/bugpoint.cpp
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@ -50,10 +50,10 @@ static cl::opt<unsigned> TimeoutValue(
cl::desc("Number of seconds program is allowed to run before it "
"is killed (default is 300s), 0 disables timeout"));
static cl::opt<int>
MemoryLimit("mlimit", cl::init(-1), cl::value_desc("MBytes"),
cl::desc("Maximum amount of memory to use. 0 disables check."
" Defaults to 400MB (800MB under valgrind)."));
static cl::opt<int> MemoryLimit(
"mlimit", cl::init(-1), cl::value_desc("MBytes"),
cl::desc("Maximum amount of memory to use. 0 disables check. Defaults to "
"400MB (800MB under valgrind, 0 with sanitizers)."));
static cl::opt<bool>
UseValgrind("enable-valgrind",
@ -169,6 +169,12 @@ int main(int argc, char **argv) {
MemoryLimit = 800;
else
MemoryLimit = 400;
#if (LLVM_ADDRESS_SANITIZER_BUILD || LLVM_MEMORY_SANITIZER_BUILD || \
LLVM_THREAD_SANITIZER_BUILD)
// Starting from kernel 4.9 memory allocated with mmap is counted against
// RLIMIT_DATA. Sanitizers need to allocate tens of terabytes for shadow.
MemoryLimit = 0;
#endif
}
BugDriver D(argv[0], FindBugs, TimeoutValue, MemoryLimit, UseValgrind,