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TheRock/compiler/amd-llvm/lld/test/ELF/arm-exidx-partial-discard-exidx.s
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

49 lines
1.5 KiB
ArmAsm

// REQUIRES: arm
// RUN: llvm-mc --arm-add-build-attributes --triple=armv7a-linux-gnueabihf -filetype=obj %s -o %t.o
// RUN: echo "SECTIONS { \
// RUN: /DISCARD/ : { *(.ARM.exidx.exit.text) *(.ARM.extab.exit.text)} \
// RUN: . = 0x90000000; \
// RUN: .ARM.exidx : { *(.ARM.exidx) } \
// RUN: .text : { *(.text) } \
// RUN: .exit.text : { *(.exit.text) } \
// RUN: .rodata : { *(.rodata) } \
// RUN: } " > %t.script
// RUN: ld.lld --script %t.script %t.o -o %t
// RUN: llvm-readelf -x .ARM.exidx %t | FileCheck %s
/// The linker script /DISCARDS/ the .ARM.exidx and .ARM.extab for the
/// .exit.text . If we do not discard both sections we will end up with
/// a dangling reference. We expect no linker error for an out of range
/// relocation/dangling reference and just a single .ARM.exidx entry
/// for _start and an entry for the terminating sentinel.
// CHECK: Hex dump of section '.ARM.exidx':
// CHECK-NEXT: 0x90000000 10000000 01000000 10000000 01000000
// CHECK-NOT: 0x90000010
.text
.global _start
.type _start, %function
_start:
.fnstart
bx lr
.cantunwind
.fnend
.section .exit.text, "ax", %progbits
.global exit_text
.type exit_text, %function
exit_text:
.fnstart
bx lr
.personality __gxx_personality_v0
.handlerdata
.long 0
.fnend
/// Dummy definition for a reference from the personality routine created by
/// the assembler, use .data to avoid generating a cantunwind table.
.section .rodata
.global __aeabi_unwind_cpp_pr0
__aeabi_unwind_cpp_pr0:
.word 0