diff options
Diffstat (limited to 'lld/test/MachO/weak-alias-override.s')
| -rw-r--r-- | lld/test/MachO/weak-alias-override.s | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/lld/test/MachO/weak-alias-override.s b/lld/test/MachO/weak-alias-override.s new file mode 100644 index 000000000000..224ddc4ec38d --- /dev/null +++ b/lld/test/MachO/weak-alias-override.s @@ -0,0 +1,97 @@ +# REQUIRES: x86 +# RUN: rm -rf %t; split-file %s %t +# RUN: mkdir -p %t/bin + +# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/weak.o %t/weak.s +# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/strong_a.o %t/strong_a.s +# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/strong_b.o %t/strong_b.s + +# --- Test Case 1: No overrides +# RUN: %lld %t/weak.o -o %t/bin/alone -e _s +# RUN: llvm-nm -am %t/bin/alone | FileCheck --check-prefix=NM_ALONE %s + +# NM_ALONE: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_ALONE: [[#P_ADDR]] (__TEXT,__const) weak external _weak_a +# NM_ALONE: [[#P_ADDR]] (__TEXT,__const) weak external _weak_b + +# --- Test Case 2: Override weak_a +# RUN: %lld %t/weak.o %t/strong_a.o -o %t/bin/with_a -e _s +# RUN: llvm-nm -am %t/bin/with_a | FileCheck --check-prefix=NM_WITH_A %s +# RUN: llvm-nm -am %t/bin/with_a | FileCheck --check-prefix=NM_WITH_A_BAD %s + +# NM_WITH_A: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_WITH_A: [[#%x, A_ADDR:]] (__TEXT,__const) external _strong_a +# NM_WITH_A: [[#A_ADDR]] (__TEXT,__const) external _weak_a +# NM_WITH_A: [[#P_ADDR]] (__TEXT,__const) weak external _weak_b + +# --- Addresses of _placeholder_int and _strong_a must not match. +# NM_WITH_A_BAD: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_WITH_A_BAD-NOT: [[#P_ADDR]] (__TEXT,__const) external _strong_a + +# --- Test Case 3: Override weak_b +# RUN: %lld %t/weak.o %t/strong_b.o -o %t/bin/with_b -e _s +# RUN: llvm-nm -am %t/bin/with_b | FileCheck --check-prefix=NM_WITH_B %s +# RUN: llvm-nm -am %t/bin/with_b | FileCheck --check-prefix=NM_WITH_B_BAD %s + +# NM_WITH_B: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_WITH_B: [[#%x, B_ADDR:]] (__TEXT,__const) external _strong_b +# NM_WITH_B: [[#P_ADDR]] (__TEXT,__const) weak external _weak_a +# NM_WITH_B: [[#B_ADDR]] (__TEXT,__const) external _weak_b + +# --- Addresses of _placeholder_int and _strong_a must not match. +# NM_WITH_B_BAD: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_WITH_B_BAD-NOT: [[#P_ADDR]] (__TEXT,__const) external _strong_b + +# --- Test Case 4: Override weak_a and weak_b +# RUN: %lld %t/weak.o %t/strong_a.o %t/strong_b.o -o %t/bin/with_ab -e _s +# RUN: llvm-nm -am %t/bin/with_ab | FileCheck --check-prefix=NM_WITH_AB %s +# RUN: llvm-nm -am %t/bin/with_ab | FileCheck --check-prefix=NM_WITH_AB_BAD %s + +# NM_WITH_AB: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_WITH_AB: [[#%x, A_ADDR:]] (__TEXT,__const) external _strong_a +# NM_WITH_AB: [[#%x, B_ADDR:]] (__TEXT,__const) external _strong_b +# NM_WITH_AB: [[#A_ADDR]] (__TEXT,__const) external _weak_a +# NM_WITH_AB: [[#B_ADDR]] (__TEXT,__const) external _weak_b + +# --- Addresses of _placeholder_int, _strong_a, and _strong_b must all be distinct +# NM_WITH_AB_BAD: [[#%x, P_ADDR:]] (__TEXT,__const) weak external _placeholder_int +# NM_WITH_AB_BAD-NOT: [[#P_ADDR]] (__TEXT,__const) external _strong_a +# NM_WITH_AB_BAD-NOT: [[#P_ADDR]] (__TEXT,__const) external _strong_b + +#--- weak.s +.section __TEXT,__const +.globl _placeholder_int +.weak_definition _placeholder_int +_placeholder_int: + .long 0 + +.globl _weak_a +.set _weak_a, _placeholder_int +.weak_definition _weak_a + +.globl _weak_b +.set _weak_b, _placeholder_int +.weak_definition _weak_b + +.globl _s +_s: + .quad _weak_a + .quad _weak_b + +#--- strong_a.s +.section __TEXT,__const +.globl _strong_a +_strong_a: + .long 1 + +.globl _weak_a +_weak_a = _strong_a + +#--- strong_b.s +.section __TEXT,__const +.globl _strong_b +_strong_b: + .long 2 + +.globl _weak_b +_weak_b = _strong_b |