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llvm-project/lld/test/ELF/relro-omagic.s

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[lld] Add REQUIRES: x86 where needed to tests If building lld without x86 support, tests that require that support should be treated as unsupported, not errors. Tested using: 1. cmake '-DLLVM_TARGETS_TO_BUILD=AArch64;X86' make check-lld => Expected Passes : 1406 Unsupported Tests : 287 2. cmake '-DLLVM_TARGETS_TO_BUILD=AArch64' make check-lld => Expected Passes : 410 Unsupported Tests : 1283 Patch by Joel Jones Differential Revision: https://reviews.llvm.org/D47748 llvm-svn: 334095
2018-06-06 21:56:51 +08:00
# REQUIRES: x86
[ELF] - Disable relro when -omagic specified. --omagic is an option to create old-fashioned executables in which .text segments are writable. Today, the option is still in use to create special-purpose programs such as boot loaders. It doesn't make sense to create PT_GNU_RELRO for such executables. DIfferential revision: https://reviews.llvm.org/D27297 llvm-svn: 288579
2016-12-03 15:09:28 +08:00
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
[lld] Keep full library path in DT_NEEDED. Fixes PR32572. When (a) a library has no soname and (b) library is given on the command line with path (and not through -L/-l flags) DT_NEEDED entry for such library keeps the path as given. This behavior is consistent with gold and bfd, and is used in compiler-rt test suite. This is a second attempt after r300007 got reverted. This time relro-omagic test is changed in a way to avoid hardcoding the path to the test directory in the objdump'd binary. llvm-svn: 300011
2017-04-12 08:13:48 +08:00
# RUN: ld.lld -shared %t2.o -o %t2.so -soname relro-omagic.s.tmp2.so
[ELF] - Do --hash-style=both by default. Its PR34712, GNU linkers recently changed default values to "both" of "sysv". Patch do the same for all targets except MIPS, where .gnu.hash section is not yet supported. Code suggested by Rui Ueyama. Differential revision: https://reviews.llvm.org/D38407 llvm-svn: 315051
2017-10-06 17:37:44 +08:00
# RUN: ld.lld --hash-style=sysv -N %t.o %t2.so -o %t
[ELF] - Disable relro when -omagic specified. --omagic is an option to create old-fashioned executables in which .text segments are writable. Today, the option is still in use to create special-purpose programs such as boot loaders. It doesn't make sense to create PT_GNU_RELRO for such executables. DIfferential revision: https://reviews.llvm.org/D27297 llvm-svn: 288579
2016-12-03 15:09:28 +08:00
# RUN: llvm-objdump -section-headers %t | FileCheck --check-prefix=NORELRO %s
# RUN: llvm-readobj --program-headers %t | FileCheck --check-prefix=NOPHDRS %s
# NORELRO: Sections:
# NORELRO-NEXT: Idx Name Size Address Type
# NORELRO-NEXT: 0 00000000 0000000000000000
# NORELRO-NEXT: 1 .dynsym 00000048 0000000000200120
[lld] Mitigate relocation overflow [part 1 of 2]. This CL places .dynsym and .dynstr at the beginning of SHF_ALLOC sections. We do this to mitigate the possibility that huge .dynsym and .dynstr sections placed between ro-data and text sections cause relocation overflow. Differential Revision: https://reviews.llvm.org/D45788 llvm-svn: 332374
2018-05-16 01:02:35 +08:00
# NORELRO-NEXT: 2 .dynstr 00000021 0000000000200168
# NORELRO-NEXT: 3 .hash 00000020 000000000020018c
Revert "[lld] Keep full library path in DT_NEEDED." This reverts commit r300007. Reason: breaks all the bots. llvm-svn: 300008
2017-04-12 08:01:21 +08:00
# NORELRO-NEXT: 4 .rela.dyn 00000018 00000000002001b0
# NORELRO-NEXT: 5 .rela.plt 00000018 00000000002001c8
# NORELRO-NEXT: 6 .text 0000000a 00000000002001e0 TEXT DATA
# NORELRO-NEXT: 7 .plt 00000020 00000000002001f0 TEXT DATA
# NORELRO-NEXT: 8 .data 00000008 0000000000200210 DATA
# NORELRO-NEXT: 9 .foo 00000004 0000000000200218 DATA
# NORELRO-NEXT: 10 .dynamic 000000f0 0000000000200220
# NORELRO-NEXT: 11 .got 00000008 0000000000200310 DATA
# NORELRO-NEXT: 12 .got.plt 00000020 0000000000200318 DATA
[ELF] - Disable relro when -omagic specified. --omagic is an option to create old-fashioned executables in which .text segments are writable. Today, the option is still in use to create special-purpose programs such as boot loaders. It doesn't make sense to create PT_GNU_RELRO for such executables. DIfferential revision: https://reviews.llvm.org/D27297 llvm-svn: 288579
2016-12-03 15:09:28 +08:00
# NOPHDRS: ProgramHeaders [
# NOPHDRS-NOT: PT_GNU_RELRO
.long bar
jmp *bar2@GOTPCREL(%rip)
.section .data,"aw"
.quad 0
.section .foo,"aw"
.zero 4