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