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hanchenye-llvm-project/lld/test/ELF/aarch64-tlsdesc.s

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Start adding tlsdesc support for aarch64. This is mostly extracted from http://reviews.llvm.org/D18960. The general idea for tlsdesc is that the two GD got entries are used for a function pointer and its argument. The dynamic linker sets both. In the non-dlopen case the dynamic linker sets the function to the identity and the argument to the offset in the tls block. All that the static linker has to do in the non-dlopen case is relocate the code to point to the got entries and create a dynamic relocation. The dlopen case is more complicated, but can be implemented in another patch. llvm-svn: 271569
2016-06-03 03:49:53 +08:00
// REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-linux %s -o %t.o
// RUN: ld.lld -shared %t.o -o %t.so
// RUN: llvm-objdump -d %t.so | FileCheck %s
// RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=REL %s
adrp x0, :tlsdesc:a
ldr x1, [x0, :tlsdesc_lo12:a]
add x0, x0, :tlsdesc_lo12:a
.tlsdesccall a
blr x1
[ELF] Set max page size to 64K for AArch64 Differential revision: https://reviews.llvm.org/D25079 llvm-svn: 283200
2016-10-04 16:58:55 +08:00
// CHECK: 10000: {{.*}} adrp x0, #65536
// CHECK-NEXT: 10004: {{.*}} ldr x1, [x0, #144]
// CHECK-NEXT: 10008: {{.*}} add x0, x0, #144
// CHECK-NEXT: 1000c: {{.*}} blr x1
Start adding tlsdesc support for aarch64. This is mostly extracted from http://reviews.llvm.org/D18960. The general idea for tlsdesc is that the two GD got entries are used for a function pointer and its argument. The dynamic linker sets both. In the non-dlopen case the dynamic linker sets the function to the identity and the argument to the offset in the tls block. All that the static linker has to do in the non-dlopen case is relocate the code to point to the got entries and create a dynamic relocation. The dlopen case is more complicated, but can be implemented in another patch. llvm-svn: 271569
2016-06-03 03:49:53 +08:00
// 0x1000 + 4096 + 144 = 0x2090
// REL: Relocations [
// REL-NEXT: Section (4) .rela.dyn {
[ELF] Set max page size to 64K for AArch64 Differential revision: https://reviews.llvm.org/D25079 llvm-svn: 283200
2016-10-04 16:58:55 +08:00
// REL-NEXT: 0x20090 R_AARCH64_TLSDESC a 0x0
Start adding tlsdesc support for aarch64. This is mostly extracted from http://reviews.llvm.org/D18960. The general idea for tlsdesc is that the two GD got entries are used for a function pointer and its argument. The dynamic linker sets both. In the non-dlopen case the dynamic linker sets the function to the identity and the argument to the offset in the tls block. All that the static linker has to do in the non-dlopen case is relocate the code to point to the got entries and create a dynamic relocation. The dlopen case is more complicated, but can be implemented in another patch. llvm-svn: 271569
2016-06-03 03:49:53 +08:00
// REL-NEXT: }
// REL-NEXT: ]