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llvm-project/lld/test/ELF/Inputs/arm-exidx-cantunwind.s

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[ELF][ARM] Initial implentation of ARM exceptions support The .ARM.exidx sections contain a table. Each entry has two fields: - PREL31 offset to the function the table entry describes - Action to take, either cantunwind, inline unwind, or PREL31 offset to .ARM.extab section The table entries must be sorted in order of the virtual addresses the first entry of the table describes. Traditionally this is implemented by the SHF_LINK_ORDER dependency. Instead of implementing this directly we sort the table entries post relocation. The .ARM.exidx OutputSection is described by the PT_ARM_EXIDX program header Differential revision: https://reviews.llvm.org/D25127 llvm-svn: 283730
2016-10-10 17:39:26 +08:00
// Functions that will generate a .ARM.exidx section with SHF_LINK_ORDER
// dependency on the progbits section containing the .cantunwind directive
.syntax unified
.section .func1, "ax",%progbits
.globl func1
func1:
.fnstart
bx lr
.cantunwind
.fnend
.section .func2, "ax", %progbits
.globl func2
func2:
.fnstart
bx lr
.cantunwind
.fnend
.section .func3, "ax",%progbits
.globl func3
func3:
.fnstart
bx lr
.cantunwind
.fnend
.section .text, "ax",%progbits
.globl func4
func4:
.fnstart
bx lr
.cantunwind
.fnend
.globl func5
func5:
.fnstart
bx lr
.cantunwind
.fnend