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TheRock/compiler/amd-llvm/lld/test/ELF/arm-fix-cortex-a8-thunk-align.s
derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

42 lines
1.2 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 --shared %t.o -o %t2
// RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t2 | FileCheck %s
/// Test case that for an OutputSection larger than the ThunkSectionSpacing
/// --fix-cortex-a8 will cause the size of the ThunkSection to be rounded up to
/// the nearest 4KiB
.thumb
.section .text.01, "ax", %progbits
.balign 4096
.globl _start
.type _start, %function
_start:
/// state change thunk required
b.w arm_func
thumb_target:
.space 4096 - 10
/// erratum patch needed
nop.w
b.w thumb_target
/// Expect thunk and patch to be inserted here
// CHECK: 00012004 <__ThumbV7PILongThunk_arm_func>:
// CHECK-NEXT: 12004: movw r12, #4088
// CHECK-NEXT: movt r12, #256
// CHECK-NEXT: add r12, pc
// CHECK-NEXT: bx r12
// CHECK: 00013004 <__CortexA8657417_11FFE>:
// CHECK-NEXT: 13004: b.w 0x11004 <thumb_target>
.section .text.02
/// Take us over thunk section spacing
.space 16 * 1024 * 1024
.section .text.03, "ax", %progbits
.arm
.balign 4
.type arm_func, %function
arm_func:
bx lr