derek.holloway
7502bf64a4
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76 lines
2.6 KiB
ArmAsm
76 lines
2.6 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
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# RUN: ld.lld %t.o -o %t.out
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# RUN: llvm-readelf -x .text %t.out | FileCheck %s
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# CHECK: Hex dump of section '.text':
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# CHECK-NEXT: 01020304
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## --shuffle-sections= shuffles input sections.
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# RUN: ld.lld --shuffle-sections='*=1' %t.o -o %t1.out
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# RUN: llvm-readelf -x .text %t1.out | FileCheck %s --check-prefix=SHUFFLE1
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# SHUFFLE1: Hex dump of section '.text':
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# SHUFFLE1-NEXT: 030402cc 01
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## Test that --shuffle-sections= can be used with --symbol-ordering-file
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# RUN: echo "foo" > %t_order.txt
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# RUN: echo "_start " >> %t_order.txt
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# RUN: ld.lld --symbol-ordering-file %t_order.txt --shuffle-sections='*=2' %t.o -o %t2.out
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# RUN: llvm-readelf -x .text %t2.out | FileCheck %s --check-prefix=SHUFFLE2
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# SHUFFLE2: Hex dump of section '.text':
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# SHUFFLE2-NEXT: 02cccccc 010304
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# RUN: ld.lld -z norelro --symbol-ordering-file %t_order.txt --shuffle-sections='*=3' %t.o -o %t3.out
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# RUN: llvm-readelf -x .text %t3.out | FileCheck %s --check-prefix=SHUFFLE3
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# SHUFFLE3: Hex dump of section '.text':
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# SHUFFLE3-NEXT: 02cccccc 010403
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## As a special case, -1 reverses sections as a stable transform.
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# RUN: ld.lld --shuffle-sections '*=-1' %t.o -o %t-1.out
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# RUN: llvm-readelf -x .text %t-1.out | FileCheck %s --check-prefix=SHUFFLE-1
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# SHUFFLE-1: Hex dump of section '.text':
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# SHUFFLE-1-NEXT: 040302cc 01
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## .text does not change its order while .text.{foo,bar,zed} are reversed.
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# RUN: ld.lld --shuffle-sections '.text.*=-1' %t.o -o %t4.out
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# RUN: llvm-readelf -x .text %t4.out | FileCheck %s --check-prefix=SHUFFLE4
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# SHUFFLE4: Hex dump of section '.text':
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# SHUFFLE4-NEXT: 01040302
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## Reversing twice restores the original order.
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# RUN: ld.lld --shuffle-sections '.text.*=-1' --shuffle-sections '.text.*=-1' %t.o -o %t.out
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# RUN: llvm-readelf -x .text %t.out | FileCheck %s
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## Test all possible invalid cases.
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# RUN: not ld.lld --shuffle-sections= 2>&1 | FileCheck %s --check-prefix=USAGE -DV=
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# RUN: not ld.lld --shuffle-sections=a= 2>&1 | FileCheck %s --check-prefix=USAGE -DV=a=
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# RUN: not ld.lld --shuffle-sections==0 2>&1 | FileCheck %s --check-prefix=USAGE -DV==0
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# RUN: not ld.lld --shuffle-sections=a 2>&1 | FileCheck %s --check-prefix=USAGE -DV=a
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# USAGE: error: --shuffle-sections=: expected <section_glob>=<seed>, but got '[[V]]'
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# RUN: not ld.lld --shuffle-sections='['=0 2>&1 | FileCheck %s --check-prefix=INVALID
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# INVALID: error: --shuffle-sections=: invalid glob pattern, unmatched '[': [
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## .text has an alignment of 4.
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.global _start
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_start:
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.byte 1
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.section .text.foo,"ax"
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.global foo
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foo:
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.byte 2
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.section .text.bar,"ax"
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.global bar
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bar:
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.byte 3
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.section .text.zed,"ax"
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.global zed
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zed:
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.byte 4
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