acf9aa3c22
Unlike ELF targets, MachO does not support the same kind of dynamic symbol resolution at load time. Instead, the corresponding MachO feature resolves symbols lazily on first call. Reviewers: JDevlieghere, dmpolukhin, ahmedbougacha, tahonermann, echristo, MaskRay, erichkeane Reviewed By: MaskRay, echristo, ahmedbougacha Pull Request: https://github.com/llvm/llvm-project/pull/73687
65 lines
2.5 KiB
C
65 lines
2.5 KiB
C
// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -O2 -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
|
|
// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
|
|
// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=memory -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
|
|
// RUN: %clang_cc1 -triple arm64-apple-macosx -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple x86_64-apple-macosx -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple arm64-apple-macosx -O2 -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple x86_64-apple-macosx -O2 -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple arm64-apple-macosx -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=MACSAN
|
|
// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=MACSAN
|
|
// RUN: %clang_cc1 -triple arm64-apple-macosx -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=MACSAN
|
|
// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=MACSAN
|
|
|
|
int foo(int) __attribute__ ((ifunc("foo_ifunc")));
|
|
|
|
static int f1(int i) {
|
|
return i + 1;
|
|
}
|
|
|
|
static int f2(int i) {
|
|
return i + 2;
|
|
}
|
|
|
|
typedef int (*foo_t)(int);
|
|
|
|
int global;
|
|
|
|
static foo_t foo_ifunc(void) {
|
|
return global ? f1 : f2;
|
|
}
|
|
|
|
int bar(void) {
|
|
return foo(1);
|
|
}
|
|
|
|
extern void goo(void);
|
|
|
|
void bar2(void) {
|
|
goo();
|
|
}
|
|
|
|
extern void goo(void) __attribute__ ((ifunc("goo_ifunc")));
|
|
|
|
void* goo_ifunc(void) {
|
|
return 0;
|
|
}
|
|
// CHECK: @foo = ifunc i32 (i32), ptr @foo_ifunc
|
|
// CHECK: @goo = ifunc void (), ptr @goo_ifunc
|
|
|
|
// CHECK: call i32 @foo(i32
|
|
// CHECK: call void @goo()
|
|
|
|
// SAN: define internal nonnull ptr @foo_ifunc() #[[#FOO_IFUNC:]] {
|
|
// MACSAN: define internal nonnull ptr @foo_ifunc() #[[#FOO_IFUNC:]] {
|
|
|
|
// SAN: define dso_local noalias ptr @goo_ifunc() #[[#GOO_IFUNC:]] {
|
|
// MACSAN: define noalias ptr @goo_ifunc() #[[#GOO_IFUNC:]] {
|
|
|
|
// SAN-DAG: attributes #[[#FOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}}
|
|
// MACSAN-DAG: attributes #[[#FOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}}
|
|
|
|
// SAN-DAG: attributes #[[#GOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}}
|
|
// MACSAN-DAG: attributes #[[#GOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}}
|