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Add -fno-sanitize-address-use-after-scope flag 

Reviewers: eugenis

Differential Revision: https://reviews.llvm.org/D25453

llvm-svn: 283801
This commit is contained in:
Vitaly Buka 2016-10-10 21:31:50 +00:00
parent edce6e9126
commit a77ac1b214
4 changed files with 25 additions and 14 deletions
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3
clang/include/clang/Driver/Options.td
View File

@ -687,6 +687,9 @@ def fsanitize_address_field_padding : Joined<["-"], "fsanitize-address-field-pad
def fsanitize_address_use_after_scope : Flag<["-"], "fsanitize-address-use-after-scope">,
Group<f_clang_Group>, Flags<[CC1Option]>,
HelpText<"Enable use-after-scope detection in AddressSanitizer">;
def fno_sanitize_address_use_after_scope : Flag<["-"], "fno-sanitize-address-use-after-scope">,
Group<f_clang_Group>, Flags<[CC1Option]>,
HelpText<"Disable use-after-scope detection in AddressSanitizer">;
def fsanitize_recover : Flag<["-"], "fsanitize-recover">, Group<f_clang_Group>,
Flags<[CoreOption]>;
def fno_sanitize_recover : Flag<["-"], "fno-sanitize-recover">,

13
clang/lib/Driver/SanitizerArgs.cpp
View File

@ -559,14 +559,13 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
D.Diag(clang::diag::note_drv_address_sanitizer_debug_runtime);
}
}
}
AsanUseAfterScope =
Args.hasArg(options::OPT_fsanitize_address_use_after_scope);
if (AsanUseAfterScope && !(AllAddedKinds & Address)) {
D.Diag(clang::diag::err_drv_argument_only_allowed_with)
<< "-fsanitize-address-use-after-scope"
<< "-fsanitize=address";
if (Arg *A = Args.getLastArg(
options::OPT_fsanitize_address_use_after_scope,
options::OPT_fno_sanitize_address_use_after_scope)) {
AsanUseAfterScope = A->getOption().getID() ==
options::OPT_fsanitize_address_use_after_scope;
}
}
// Parse -link-cxx-sanitizer flag.

7
clang/lib/Frontend/CompilerInvocation.cpp
View File

@ -732,8 +732,11 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
Opts.SanitizeAddressUseAfterScope =
Args.hasArg(OPT_fsanitize_address_use_after_scope);
if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
OPT_fno_sanitize_address_use_after_scope)) {
Opts.SanitizeAddressUseAfterScope =
A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
}
Opts.SSPBufferSize =
getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);

16
clang/test/Driver/fsanitize.c
View File

@ -108,14 +108,20 @@
// RUN: %clang -target x86_64-linux-gnu -fsanitize=efficiency-working-set,kernel-address -pie -fno-rtti %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANE-SANKA
// CHECK-SANE-SANKA: '-fsanitize=efficiency-{{.*}}' not allowed with '-fsanitize=kernel-address'
// RUN: %clang -target x86_64-linux-gnu -fsanitize-address-use-after-scope %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ONLY-USE-AFTER-SCOPE
// CHECK-ONLY-USE-AFTER-SCOPE: '-fsanitize-address-use-after-scope' only allowed with '-fsanitize=address'
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-address-use-after-scope %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-USE-AFTER-SCOPE
// CHECK-USE-AFTER-SCOPE: -cc1{{.*}}-fsanitize-address-use-after-scope
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ASAN-NO-USE-AFTER-SCOPE
// CHECK-ASAN-NO-USE-AFTER-SCOPE-NOT: -cc1{{.*}}-fsanitize-address-use-after-scope
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fno-sanitize-address-use-after-scope %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-USE-AFTER-SCOPE-OFF
// CHECK-USE-AFTER-SCOPE-OFF-NOT: -cc1{{.*}}address-use-after-scope
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fno-sanitize-address-use-after-scope -fsanitize-address-use-after-scope %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-USE-AFTER-SCOPE-BOTH
// CHECK-USE-AFTER-SCOPE-BOTH: -cc1{{.*}}-fsanitize-address-use-after-scope
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-address-use-after-scope -fno-sanitize-address-use-after-scope %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-USE-AFTER-SCOPE-BOTH-OFF
// CHECK-USE-AFTER-SCOPE-BOTH-OFF-NOT: -cc1{{.*}}address-use-after-scope
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ASAN-WITHOUT-USE-AFTER-SCOPE
// CHECK-ASAN-WITHOUT-USE-AFTER-SCOPE-NOT: -cc1{{.*}}address-use-after-scope
// RUN: %clang -target x86_64-linux-gnu -fsanitize-memory-track-origins -pie %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ONLY-TRACK-ORIGINS
// CHECK-ONLY-TRACK-ORIGINS: warning: argument unused during compilation: '-fsanitize-memory-track-origins'