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[ubsan] Add -fsanitize-undefined-strip-path-components=N Summary: This option allows the user to control how much of the file name is emitted by UBSan. Tuning this option allows one to save space in the resulting binary, which is helpful for restricted execution environments. With a positive N, UBSan skips the first N path components. With a negative N, UBSan only keeps the last N path components. Reviewers: rsmith Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D19666 llvm-svn: 269309
2016-05-13 00:51:36 +08:00
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - | FileCheck %s -check-prefix=REGULAR -check-prefix=CHECK
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - -fsanitize-undefined-strip-path-components=0 | FileCheck %s -check-prefix=REGULAR -check-prefix=CHECK
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - -fsanitize-undefined-strip-path-components=2 | FileCheck %s -check-prefix=REMOVE-FIRST-TWO -check-prefix=CHECK
// Try to strip too much:
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - -fsanitize-undefined-strip-path-components=-99999 | FileCheck %s -check-prefix=REGULAR
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - -fsanitize-undefined-strip-path-components=99999 | FileCheck %s -check-prefix=LAST-ONLY
// Check stripping from the file name
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - -fsanitize-undefined-strip-path-components=-2 | FileCheck %s -check-prefix=LAST-TWO
// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -fsanitize=unreachable -o - -fsanitize-undefined-strip-path-components=-1 | FileCheck %s -check-prefix=LAST-ONLY
Update clang tests for new LLVM IR backslash printing in r374415 llvm-svn: 374416
2019-10-11 02:36:41 +08:00
// REGULAR: @[[SRC:[0-9.a-zA-Z_]+]] = private unnamed_addr constant [{{.*}} x i8] c"{{.*test(.|\\\\)CodeGen(.|\\\\)ubsan-strip-path-components\.cpp}}\00", align 1
[ubsan] Add -fsanitize-undefined-strip-path-components=N Summary: This option allows the user to control how much of the file name is emitted by UBSan. Tuning this option allows one to save space in the resulting binary, which is helpful for restricted execution environments. With a positive N, UBSan skips the first N path components. With a negative N, UBSan only keeps the last N path components. Reviewers: rsmith Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D19666 llvm-svn: 269309
2016-05-13 00:51:36 +08:00
Update clang tests for new LLVM IR backslash printing in r374415 llvm-svn: 374416
2019-10-11 02:36:41 +08:00
// First path component: "/" or "$drive_letter:", then a name, or '\\' on Windows
// REMOVE-FIRST-TWO: @[[STR:[0-9.a-zA-Z_]+]] = private unnamed_addr constant [{{.*}} x i8] c"{{(.:|/)([^\\/]*(/|\\\\))}}[[REST:.*ubsan-strip-path-components\.cpp]]\00", align 1
[ubsan] Add -fsanitize-undefined-strip-path-components=N Summary: This option allows the user to control how much of the file name is emitted by UBSan. Tuning this option allows one to save space in the resulting binary, which is helpful for restricted execution environments. With a positive N, UBSan skips the first N path components. With a negative N, UBSan only keeps the last N path components. Reviewers: rsmith Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D19666 llvm-svn: 269309
2016-05-13 00:51:36 +08:00
// REMOVE-FIRST-TWO: @[[SRC:[0-9.a-zA-Z_]+]] = private unnamed_addr constant [{{.*}} x i8] c"[[REST]]\00", align 1
Update clang tests for new LLVM IR backslash printing in r374415 llvm-svn: 374416
2019-10-11 02:36:41 +08:00
// LAST-TWO: @[[SRC:[0-9.a-zA-Z_]+]] = private unnamed_addr constant [{{.*}} x i8] c"CodeGen{{/|\\\\}}ubsan-strip-path-components.cpp\00", align 1
[ubsan] Add -fsanitize-undefined-strip-path-components=N Summary: This option allows the user to control how much of the file name is emitted by UBSan. Tuning this option allows one to save space in the resulting binary, which is helpful for restricted execution environments. With a positive N, UBSan skips the first N path components. With a negative N, UBSan only keeps the last N path components. Reviewers: rsmith Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D19666 llvm-svn: 269309
2016-05-13 00:51:36 +08:00
// LAST-ONLY: @[[SRC:[0-9.a-zA-Z_]+]] = private unnamed_addr constant [{{.*}} x i8] c"ubsan-strip-path-components.cpp\00", align 1
// CHECK: @[[STATIC_DATA:[0-9.a-zA-Z_]+]] = private unnamed_addr global { { [{{.*}} x i8]*, i32, i32 } } { { [{{.*}} x i8]*, i32, i32 } { [{{.*}} x i8]* @[[SRC]], i32 [[@LINE+6]], i32 3 } }
void g(const char *);
void f() {
// CHECK-LABEL: @_Z1fv(
g(__FILE__);
// CHECK: call void @__ubsan_handle_builtin_unreachable(i8* bitcast ({ { [{{.*}} x i8]*, i32, i32 } }* @[[STATIC_DATA]] to i8*)) {{.*}}, !nosanitize
__builtin_unreachable();
}