1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=WITHOUTATEXIT %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fregister-global-dtors-with-atexit -debug-info-kind=line-tables-only -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=CXAATEXIT --check-prefix=WITHATEXIT %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fno-use-cxa-atexit -fregister-global-dtors-with-atexit -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ATEXIT --check-prefix=WITHATEXIT %s
// WITHOUTATEXIT: global_ctors{{.*}}@A{{.*}}@C
// WITHOUTATEXIT: @llvm.global_dtors = appending global [5 x { i32, ptr, ptr }]{{.*}}@B{{.*}}@E{{.*}}@F{{.*}}@G{{.*}}@D
// WITHATEXIT: @llvm.global_ctors = appending global [5 x { i32, ptr, ptr }]{{.*}}i32 65535, ptr @A,{{.*}}i32 65535, ptr @C,{{.*}}i32 123, ptr @__GLOBAL_init_123,{{.*}}i32 789, ptr @[[GLOBAL_INIT_789:__GLOBAL_init_789.[0-9]+]],{{.*}}i32 65535, ptr @__GLOBAL_init_65535,
// WITHATEXIT-NOT: global_dtors
// CHECK: define{{.*}} void @A()
// CHECK: define{{.*}} void @B()
// CHECK: define internal void @E()
// CHECK: define internal void @F()
// CHECK: define internal void @G()
// CHECK: define{{.*}} i32 @__GLOBAL_init_789(i32 noundef %{{.*}})
// CHECK: define internal void @C()
// CHECK: define internal i32 @foo()
// CHECK: define internal void @D()
// CHECK: define{{.*}} i32 @main()
// WITHOUTATEXIT-NOT: define
// CXAATEXIT: define internal void @__GLOBAL_init_123(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions" !dbg ![[GLOBAL_INIT_SP:.*]] {
// ATEXIT: define internal void @__GLOBAL_init_123(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions"
// CXAATEXIT: call i32 @__cxa_atexit(ptr @E, ptr null, ptr @__dso_handle) {{.*}}, !dbg ![[GLOBAL_INIT_LOC:.*]]
// CXAATEXIT: call i32 @__cxa_atexit(ptr @G, ptr null, ptr @__dso_handle)
// ATEXIT: call i32 @atexit(ptr @E)
// ATEXIT: call i32 @atexit(ptr @G)
// WITHATEXIT: define internal void @[[GLOBAL_INIT_789]](){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions"
// CXAATEXIT: call i32 @__cxa_atexit(ptr @F, ptr null, ptr @__dso_handle)
// ATEXIT: call i32 @atexit(ptr @F)
// WITHATEXIT: define internal void @__GLOBAL_init_65535(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions"
// CXAATEXIT: call i32 @__cxa_atexit(ptr @B, ptr null, ptr @__dso_handle)
// CXAATEXIT: call i32 @__cxa_atexit(ptr @D, ptr null, ptr @__dso_handle)
// ATEXIT: call i32 @atexit(ptr @B)
// ATEXIT: call i32 @atexit(ptr @D)
int printf(const char *, ...);
void A(void) __attribute__((constructor));
void B(void) __attribute__((destructor));
void A(void) {
printf("A\n");
}
void B(void) {
printf("B\n");
}
static void C(void) __attribute__((constructor));
static void D(void) __attribute__((destructor));
static __attribute__((destructor(123))) void E(void) {
}
static __attribute__((destructor(789))) void F(void) {
}
static __attribute__((destructor(123))) void G(void) {
}
// Test that this function doesn't collide with the synthesized constructor
// function for destructors with priority 789.
int __GLOBAL_init_789(int a) {
return a * a;
}
static int foo(void) {
return 10;
}
static void C(void) {
printf("A: %d\n", foo());
}
static void D(void) {
printf("B\n");
}
int main(void) {
return 0;
}
// CXAATEXIT: ![[GLOBAL_INIT_SP]] = distinct !DISubprogram(linkageName: "__GLOBAL_init_123",
// CXAATEXIT: ![[GLOBAL_INIT_LOC]] = !DILocation(line: 0, scope: ![[GLOBAL_INIT_SP]])
|
