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llvm-project/lld/test/ELF/mips-tls-static.s

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[ELF] Move `# REQUIRES:` line to the top llvm-svn: 335625
2018-06-27 00:58:19 +08:00
# REQUIRES: mips
[ELF][MIPS] Do not create a hidden definition for __tls_get_addr on MIPS On most architectures the linker is required to optimize away any references to __tls_get_addr in case of static linking. As usual a special case is MIPS - libc defines __tls_get_addr itself because there are no TLS optimizations for this architecture. llvm-svn: 280664
2016-09-05 23:42:29 +08:00
# Check handling TLS related relocations and symbols when linking
# a static executable.
# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t
# RUN: ld.lld -static %t -o %t.exe
[ELF][MIPS] Support R_MIPS_TLS_DTPREL32 / R_MIPS_TLS_TPREL32 relocations calculation llvm-svn: 280665
2016-09-05 23:42:39 +08:00
# RUN: llvm-objdump -s -t %t.exe | FileCheck %s
[ELF][MIPS] Do not create a hidden definition for __tls_get_addr on MIPS On most architectures the linker is required to optimize away any references to __tls_get_addr in case of static linking. As usual a special case is MIPS - libc defines __tls_get_addr itself because there are no TLS optimizations for this architecture. llvm-svn: 280664
2016-09-05 23:42:29 +08:00
[llvm-objdump] Further rearrange llvm-objdump sections for compatability Summary: rL371826 rearranged some output from llvm-objdump for GNU objdump compatability, but there still seem to be some more. I think this rearrangement is a little closer. Overview of the ordering which matches GNU objdump: * Archive headers * File headers * Section headers * Symbol table * Dwarf debugging * Relocations (if `--disassemble` is not used) * Section contents * Disassembly Reviewers: jhenderson, justice_adams, grimar, ychen, espindola Reviewed By: jhenderson Subscribers: aprantl, emaste, arichardson, jrtc27, atanasyan, seiya, llvm-commits, MaskRay Tags: #llvm Differential Revision: https://reviews.llvm.org/D68066 llvm-svn: 373671
2019-10-04 06:01:08 +08:00
# CHECK: SYMBOL TABLE:
[llvm-objdump] --syms: make flags closer to GNU objdump This fixes several issues. The behavior changes are: A SHN_COMMON symbol does not have the 'g' flag. An undefined symbol does not have 'g' or 'l' flag. A STB_GLOBAL SymbolRef::ST_Unknown symbol has the 'g' flag. A STB_LOCAL SymbolRef::ST_Unknown symbol has the 'l' flag. Reviewed By: rupprecht Differential Revision: https://reviews.llvm.org/D75659
2020-03-05 09:19:18 +08:00
# CHECK: [[TGA:[0-9a-f]+]] g .text 00000000 __tls_get_addr
[llvm-objdump] Further rearrange llvm-objdump sections for compatability Summary: rL371826 rearranged some output from llvm-objdump for GNU objdump compatability, but there still seem to be some more. I think this rearrangement is a little closer. Overview of the ordering which matches GNU objdump: * Archive headers * File headers * Section headers * Symbol table * Dwarf debugging * Relocations (if `--disassemble` is not used) * Section contents * Disassembly Reviewers: jhenderson, justice_adams, grimar, ychen, espindola Reviewed By: jhenderson Subscribers: aprantl, emaste, arichardson, jrtc27, atanasyan, seiya, llvm-commits, MaskRay Tags: #llvm Differential Revision: https://reviews.llvm.org/D68066 llvm-svn: 373671
2019-10-04 06:01:08 +08:00
# CHECK: 00000000 g O .tdata 00000000 tls1
#
[ELF][MIPS] Support R_MIPS_TLS_DTPREL32 / R_MIPS_TLS_TPREL32 relocations calculation llvm-svn: 280665
2016-09-05 23:42:39 +08:00
# CHECK: Contents of section .data:
[llvm-objdump] Further rearrange llvm-objdump sections for compatability Summary: rL371826 rearranged some output from llvm-objdump for GNU objdump compatability, but there still seem to be some more. I think this rearrangement is a little closer. Overview of the ordering which matches GNU objdump: * Archive headers * File headers * Section headers * Symbol table * Dwarf debugging * Relocations (if `--disassemble` is not used) * Section contents * Disassembly Reviewers: jhenderson, justice_adams, grimar, ychen, espindola Reviewed By: jhenderson Subscribers: aprantl, emaste, arichardson, jrtc27, atanasyan, seiya, llvm-commits, MaskRay Tags: #llvm Differential Revision: https://reviews.llvm.org/D68066 llvm-svn: 373671
2019-10-04 06:01:08 +08:00
# CHECK-NEXT: {{.*}} [[TGA]] ffff8004 ffff9004
ELF: Place relro sections after non-relro sections in r/w segment. This is in preparation for my next change, which will introduce a relro nobits section. That requires that relro sections appear at the end of the progbits part of the r/w segment so that the relro nobits section can appear contiguously. Because of the amount of churn required in the test suite, I'm making this change separately. llvm-svn: 291523
2017-01-10 09:21:30 +08:00
# CHECK: Contents of section .got:
[mips] Make another set of test cases more tolerant to exact symbol addresses. NFC llvm-svn: 371458
2019-09-10 06:04:20 +08:00
# CHECK-NEXT: {{.*}} 00000000 80000000 ffff9000 00000001
# CHECK-NEXT: {{.*}} ffff8000 00000001 00000000
[ELF][MIPS] Do not create a hidden definition for __tls_get_addr on MIPS On most architectures the linker is required to optimize away any references to __tls_get_addr in case of static linking. As usual a special case is MIPS - libc defines __tls_get_addr itself because there are no TLS optimizations for this architecture. llvm-svn: 280664
2016-09-05 23:42:29 +08:00
.text
.global __start
__start:
[ELF][MIPS] Fix initialization of TLS-related GOT entries This patch allows static linking of TLS code. To do that it fixes GOT entries initialization. If TLS-related GOT entry created for a preemptible symbol i.e. has a corresponding dynamic relocation, leave the entry initialized by zero. Write down adjusted TLS symbol's values otherwise. For the adjustments calculation use offsets for thread-local storage. https://www.linux-mips.org/wiki/NPTL llvm-svn: 280914
2016-09-08 17:07:19 +08:00
addiu $2, $3, %tlsgd(tls1) # R_MIPS_TLS_GD
addiu $2, $3, %tlsldm(tls2) # R_MIPS_TLS_LDM
addiu $2, $3, %gottprel(tls1) # R_MIPS_TLS_GOTTPREL
[ELF][MIPS] Do not create a hidden definition for __tls_get_addr on MIPS On most architectures the linker is required to optimize away any references to __tls_get_addr in case of static linking. As usual a special case is MIPS - libc defines __tls_get_addr itself because there are no TLS optimizations for this architecture. llvm-svn: 280664
2016-09-05 23:42:29 +08:00
.global __tls_get_addr
__tls_get_addr:
nop
.data
loc:
.word __tls_get_addr
[ELF][MIPS] Support R_MIPS_TLS_DTPREL32 / R_MIPS_TLS_TPREL32 relocations calculation llvm-svn: 280665
2016-09-05 23:42:39 +08:00
.dtprelword tls1+4 # R_MIPS_TLS_DTPREL32
.tprelword tls1+4 # R_MIPS_TLS_TPREL32
.section .tdata,"awT",%progbits
.global tls1
tls1:
.word __tls_get_addr
[ELF][MIPS] Fix initialization of TLS-related GOT entries This patch allows static linking of TLS code. To do that it fixes GOT entries initialization. If TLS-related GOT entry created for a preemptible symbol i.e. has a corresponding dynamic relocation, leave the entry initialized by zero. Write down adjusted TLS symbol's values otherwise. For the adjustments calculation use offsets for thread-local storage. https://www.linux-mips.org/wiki/NPTL llvm-svn: 280914
2016-09-08 17:07:19 +08:00
tls2:
[ELF][MIPS] Support R_MIPS_TLS_DTPREL32 / R_MIPS_TLS_TPREL32 relocations calculation llvm-svn: 280665
2016-09-05 23:42:39 +08:00
.word 0