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Allow -fsanitize-coverage=N with ubsan, clang part 

Summary:
Allow -fsanitize-coverage=N with ubsan, clang part.
This simply allows the flag combination.
The LLVM will work out of the box, the compile-rt part
will follow as a separate patch.

Test Plan: check-clang

Reviewers: samsonov

Reviewed By: samsonov

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D6849

llvm-svn: 225229
This commit is contained in:
Kostya Serebryany 2015-01-06 01:02:48 +00:00
parent 04b37c4043
commit 2d88f3d623
2 changed files with 9 additions and 2 deletions
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5
clang/lib/Driver/SanitizerArgs.cpp
View File

@ -43,7 +43,8 @@ ID = ALIAS, ID##Group = 1 << SO_##ID##Group,
NeedsUbsanRt = Undefined | Integer,
NotAllowedWithTrap = Vptr,
RequiresPIE = Memory | DataFlow,
NeedsUnwindTables = Address | Thread | Memory | DataFlow
NeedsUnwindTables = Address | Thread | Memory | DataFlow,
SupportsCoverage = Address | Memory | Leak | Undefined | Integer
};
}
@ -295,7 +296,7 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
}
// Parse -fsanitize-coverage=N. Currently one of asan/msan/lsan is required.
if (NeedsAsan || NeedsMsan || NeedsLsan) {
if (hasOneOf(Sanitizers, SupportsCoverage)) {
if (Arg *A = Args.getLastArg(options::OPT_fsanitize_coverage)) {
StringRef S = A->getValue();
// Legal values are 0..4.

6
clang/test/Driver/fsanitize.c
View File

@ -92,11 +92,17 @@
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
// RUN: %clang -target x86_64-linux-gnu -fsanitize=memory -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
// RUN: %clang -target x86_64-linux-gnu -fsanitize=leak -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
// RUN: %clang -target x86_64-linux-gnu -fsanitize=undefined -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
// RUN: %clang -target x86_64-linux-gnu -fsanitize=bool -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
// CHECK-SANITIZE-COVERAGE-1: fsanitize-coverage=1
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=4 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-4
// CHECK-SANITIZE-COVERAGE-4: fsanitize-coverage=4
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=5 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-5
// CHECK-SANITIZE-COVERAGE-5: error: invalid value '5' in '-fsanitize-coverage=5'
// RUN: %clang -target x86_64-linux-gnu -fsanitize=thread -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-UNUSED
// RUN: %clang -target x86_64-linux-gnu -fsanitize=dataflow -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-UNUSED
// RUN: %clang -target x86_64-linux-gnu -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-UNUSED
// CHECK-SANITIZE-COVERAGE-UNUSED: argument unused during compilation: '-fsanitize-coverage=1'
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-address-field-padding=0 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ASAN-FIELD-PADDING-0
// CHECK-ASAN-FIELD-PADDING-0-NOT: -fsanitize-address-field-padding