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llvm-project/lld/test/ELF/synthetic-got.s

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[ELF] - Add support for access to most of synthetic sections from linkerscript. This is important for cases like: .sdata : { *(.got.plt .got) ... } That was not supported before as there was no way to get access to synthetic sections from script. More details on review page. Differential revision: https://reviews.llvm.org/D27040 llvm-svn: 287913
2016-11-25 16:05:41 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: echo "SECTIONS { }" > %t0.script
# RUN: ld.lld -shared %t.o -o %t0.out --script %t0.script
# RUN: llvm-objdump -section-headers %t0.out | FileCheck %s --check-prefix=GOT
# RUN: llvm-objdump -s -section=.got -section=.got.plt %t0.out \
# RUN: | FileCheck %s --check-prefix=GOTDATA
# GOT: Sections:
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
# GOT: 8 .got.plt 00000020 00000000000000e0 DATA
# GOT: 10 .got 00000008 00000000000001d0 DATA
# GOTDATA: Contents of section .got.plt:
# GOTDATA-NEXT: 00e0 00010000 00000000 00000000 00000000
# GOTDATA-NEXT: 00f0 00000000 00000000 d6000000 00000000
# GOTDATA-NEXT: Contents of section .got:
# GOTDATA-NEXT: 01d0 00000000 00000000
[ELF] - Add support for access to most of synthetic sections from linkerscript. This is important for cases like: .sdata : { *(.got.plt .got) ... } That was not supported before as there was no way to get access to synthetic sections from script. More details on review page. Differential revision: https://reviews.llvm.org/D27040 llvm-svn: 287913
2016-11-25 16:05:41 +08:00
# RUN: echo "SECTIONS { .mygot : { *(.got) *(.got.plt) } }" > %t1.script
# RUN: ld.lld -shared %t.o -o %t1.out --script %t1.script
# RUN: llvm-objdump -section-headers %t1.out | FileCheck %s --check-prefix=MYGOT
# RUN: llvm-objdump -s -section=.mygot %t1.out | FileCheck %s --check-prefix=MYGOTDATA
# MYGOT: Sections:
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
# MYGOT: 8 .mygot 00000028 00000000000000e0 DATA
[ELF] - Add support for access to most of synthetic sections from linkerscript. This is important for cases like: .sdata : { *(.got.plt .got) ... } That was not supported before as there was no way to get access to synthetic sections from script. More details on review page. Differential revision: https://reviews.llvm.org/D27040 llvm-svn: 287913
2016-11-25 16:05:41 +08:00
# MYGOT-NOT: .got
# MYGOT-NOT: .got.plt
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
# MYGOTDATA: 00e0 00000000 00000000 08010000 00000000
# MYGOTDATA-NEXT: 00f0 00000000 00000000 00000000 00000000
# MYGOTDATA-NEXT: 0100 d6000000 00000000
[ELF] - Add support for access to most of synthetic sections from linkerscript. This is important for cases like: .sdata : { *(.got.plt .got) ... } That was not supported before as there was no way to get access to synthetic sections from script. More details on review page. Differential revision: https://reviews.llvm.org/D27040 llvm-svn: 287913
2016-11-25 16:05:41 +08:00
mov bar@gotpcrel(%rip), %rax
call foo@plt