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TheRock/compiler/amd-llvm/lld/test/ELF/arm-fix-cortex-a8-toolarge.s
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

46 lines
1.4 KiB
ArmAsm

// REQUIRES: arm
// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf --arm-add-build-attributes %s -o %t.o
// RUN: ld.lld --fix-cortex-a8 -verbose %t.o -o /dev/null 2>&1 | FileCheck %s
/// Test that we warn, but don't attempt to patch when it is impossible to
/// redirect the branch as the Section is too large.
// CHECK: skipping cortex-a8 657417 erratum sequence, section .text is too large to patch
// CHECK: skipping cortex-a8 657417 erratum sequence, section .text.02 is too large to patch
.syntax unified
.thumb
/// Case 1: 1 MiB conditional branch range without relocation.
.text
.global _start
.type _start, %function
.balign 4096
.thumb_func
_start:
nop.w
.space 4086
.thumb_func
.global target
.type target, %function
target:
/// 32-bit Branch spans 2 4KiB regions, preceded by a 32-bit non branch
/// instruction, a patch will be attempted. Unfortunately the branch
/// cannot reach outside the section so we have to abort the patch.
nop.w
beq.w target
.space 1024 * 1024
/// Case 2: 16 MiB
.section .text.01, "ax", %progbits
.balign 4096
.space 4090
.global target2
.thumb_func
target2:
.section .text.02, "ax", %progbits
/// 32-bit Branch and link spans 2 4KiB regions, preceded by a 32-bit
/// non branch instruction, a patch will be attempted. Unfortunately the
/// the BL cannot reach outside the section so we have to abort the patch.
nop.w
bl target2
.space 16 * 1024 * 1024