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llvm-project/lld/test/ELF/arm-exidx-discard.s

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[ELF] Move `// REQUIRES:` line to the top llvm-svn: 335676
2018-06-27 06:20:04 +08:00
// REQUIRES: arm
Fix lld crash introduced by r321154. Since SyntheticSection::getParent() may return null, dereferencing this pointer in ARMExidxSentinelSection::empty() call from removeUnusedSyntheticSections() results in crashes when linking ARM binaries. Patch by vit9696! llvm-svn: 323366
2018-01-25 03:16:31 +08:00
// RUN: llvm-mc -filetype=obj -triple arm-gnu-linux-eabi -mcpu cortex-a7 -arm-add-build-attributes %s -o %t.o
// RUN: echo "ENTRY(__entrypoint) SECTIONS { . = 0x10000; .text : { *(.text .text.*) } /DISCARD/ : { *(.ARM.exidx*) *(.gnu.linkonce.armexidx.*) } }" > %t.script
[ARM][test] Improve tests Delete trailing 2>&1 that is not piped to another command. Add --no-show-raw-insn to objdump -d commands. llvm-svn: 366676
2019-07-22 19:37:03 +08:00
// RUN: ld.lld -T %t.script %t.o -o %t.elf
[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651
2019-05-01 13:49:01 +08:00
// RUN: llvm-readobj --sections %t.elf | FileCheck %s
Fix lld crash introduced by r321154. Since SyntheticSection::getParent() may return null, dereferencing this pointer in ARMExidxSentinelSection::empty() call from removeUnusedSyntheticSections() results in crashes when linking ARM binaries. Patch by vit9696! llvm-svn: 323366
2018-01-25 03:16:31 +08:00
.globl __entrypoint
__entrypoint:
[ELF][ARM] Recommit Redesign of .ARM.exidx handling to use a SyntheticSection Recommit r356666 with fixes for buildbot failure, as well as handling for --emit-relocs, which we decide not to emit any relocation sections as the table is already position independent and an offline tool can deduce the relocations. Instead of creating extra Synthetic .ARM.exidx sections to account for gaps in the table, create a single .ARM.exidx SyntheticSection that can derive the contents of the gaps from a sorted list of the executable InputSections. This has the benefit of moving the ARM specific code for SyntheticSections in SHF_LINK_ORDER processing and the table merging code into the ARM specific SyntheticSection. This also makes it easier to create EXIDX_CANTUNWIND table entries for executable InputSections that don't have an associated .ARM.exidx section. Fixes pr40277 Differential Revision: https://reviews.llvm.org/D59216 llvm-svn: 357160
2019-03-28 19:10:20 +08:00
.fnstart
Fix lld crash introduced by r321154. Since SyntheticSection::getParent() may return null, dereferencing this pointer in ARMExidxSentinelSection::empty() call from removeUnusedSyntheticSections() results in crashes when linking ARM binaries. Patch by vit9696! llvm-svn: 323366
2018-01-25 03:16:31 +08:00
bx lr
[ELF][ARM] Recommit Redesign of .ARM.exidx handling to use a SyntheticSection Recommit r356666 with fixes for buildbot failure, as well as handling for --emit-relocs, which we decide not to emit any relocation sections as the table is already position independent and an offline tool can deduce the relocations. Instead of creating extra Synthetic .ARM.exidx sections to account for gaps in the table, create a single .ARM.exidx SyntheticSection that can derive the contents of the gaps from a sorted list of the executable InputSections. This has the benefit of moving the ARM specific code for SyntheticSections in SHF_LINK_ORDER processing and the table merging code into the ARM specific SyntheticSection. This also makes it easier to create EXIDX_CANTUNWIND table entries for executable InputSections that don't have an associated .ARM.exidx section. Fixes pr40277 Differential Revision: https://reviews.llvm.org/D59216 llvm-svn: 357160
2019-03-28 19:10:20 +08:00
.save {r7, lr}
.setfp r7, sp, #0
.fnend
Fix lld crash introduced by r321154. Since SyntheticSection::getParent() may return null, dereferencing this pointer in ARMExidxSentinelSection::empty() call from removeUnusedSyntheticSections() results in crashes when linking ARM binaries. Patch by vit9696! llvm-svn: 323366
2018-01-25 03:16:31 +08:00
// Check that .ARM.exidx/.gnu.linkonce.armexidx
// are correctly removed if they were added.
// CHECK-NOT: .ARM.exidx
// CHECK-NOT: .gnu.linkonce.armexidx.