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| author | Sagar Thakur <sagar.thakur@imgtec.com> | 2016-12-08 06:30:58 +0000 |
|---|---|---|
| committer | Sagar Thakur <sagar.thakur@imgtec.com> | 2016-12-08 06:30:58 +0000 |
| commit | 80e3cea81e7d49c1a57846ded90846c8ced5447e (patch) | |
| tree | daaedd3f696e32c871a1e3154192d917f510e94f /test/msan/chained_origin_limits.cc | |
| parent | d3e58a9d6a007ac53930a68af5ef6c6418066247 (diff) | |
[MSAN][MIPS] Fix fork.cc test on MIPS
Summary: For platforms which support slow unwinder only, we restrict the store context size to 1, basically only storing the current pc. We do this because the slow unwinder which is based on libunwind is not async signal safe and causes random freezes in forking applications as well as in signal handlers.
Reviewed by eugenis.
Differential: D23107
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@289027 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/msan/chained_origin_limits.cc')
| -rw-r--r-- | test/msan/chained_origin_limits.cc | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/test/msan/chained_origin_limits.cc b/test/msan/chained_origin_limits.cc index 90fd09a86..9585889eb 100644 --- a/test/msan/chained_origin_limits.cc +++ b/test/msan/chained_origin_limits.cc @@ -10,7 +10,7 @@ // RUN: FileCheck %s --check-prefix=CHECK2 < %t.out // RUN: MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1 -// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK < %t.out +// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out // RUN: MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK7 < %t.out @@ -25,7 +25,7 @@ // RUN: FileCheck %s --check-prefix=CHECK2 < %t.out // RUN: MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1 -// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK < %t.out +// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out // RUN: MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK7 < %t.out @@ -41,7 +41,7 @@ // RUN: FileCheck %s --check-prefix=CHECK2 < %t.out // RUN: MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1 -// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK < %t.out +// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out // RUN: MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK7 < %t.out @@ -57,7 +57,7 @@ // RUN: FileCheck %s --check-prefix=CHECK2 < %t.out // RUN: MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1 -// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK < %t.out +// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out // RUN: MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK7 < %t.out @@ -147,13 +147,21 @@ int main(void) { // CHECK2-NOT: Uninitialized value was stored to memory at // CHECK2: Uninitialized value was created +// For architectures with short stack all the stacks in the chain are same +// because the stack trace does not contain frames upto the functions fn1, fn2, +// fn3 from where the uninitialized stores actually originate. Since we report +// uninitialized value store once for each stack frame +// (origin_history_per_stack_limit = 1) we expect only one instance of +// "Uninitialized value was stored to memory at". + // CHECK-PER-STACK: WARNING: MemorySanitizer: use-of-uninitialized-value // CHECK-PER-STACK: Uninitialized value was stored to memory at -// CHECK-PER-STACK: in fn3 -// CHECK-PER-STACK: Uninitialized value was stored to memory at -// CHECK-PER-STACK: in fn2 -// CHECK-PER-STACK: Uninitialized value was stored to memory at -// CHECK-PER-STACK: in fn1 +// CHECK-SHORT-STACK: in __msan_memmove +// CHECK-FULL-STACK: in fn3 +// CHECK-FULL-STACK: Uninitialized value was stored to memory at +// CHECK-FULL-STACK: in fn2 +// CHECK-FULL-STACK: Uninitialized value was stored to memory at +// CHECK-FULL-STACK: in fn1 // CHECK-PER-STACK: Uninitialized value was created // CHECK-UNLIMITED: WARNING: MemorySanitizer: use-of-uninitialized-value |