cfa97699f7
--compress-debug-sections in GNU ld, gas, and LLVM integrated assembler retain the uncompressed content if the compressed content is larger. This patch also updates the manpage (-O2 does not enable zlib level 6) and fixes a crash of --compress-sections when the uncompressed section is empty.
112 lines
4.8 KiB
ArmAsm
112 lines
4.8 KiB
ArmAsm
# REQUIRES: x86, zlib, zstd
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# RUN: rm -rf %t && mkdir %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o a.o
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# RUN: ld.lld -pie a.o -o out --compress-sections '*0=zlib' --compress-sections '*0=none' --compress-sections 'nomatch=none'
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# RUN: llvm-readelf -SrsX out | FileCheck %s --check-prefix=CHECK1
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# CHECK1: Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK1: foo0 PROGBITS [[#%x,FOO0:]] [[#%x,]] [[#%x,]] 00 A 0 0 8
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# CHECK1-NEXT: foo1 PROGBITS [[#%x,FOO1:]] [[#%x,]] [[#%x,]] 00 A 0 0 8
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# CHECK1-NEXT: .text PROGBITS [[#%x,TEXT:]] [[#%x,]] [[#%x,]] 00 AX 0 0 4
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# CHECK1: nonalloc0 PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00 0 0 8
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# CHECK1-NEXT: nonalloc1 PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00 0 0 8
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# CHECK1-NEXT: smallc0 PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00 0 0 8
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# CHECK1-NEXT: .debug_str PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 01 MS 0 0 1
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# CHECK1: 0000000000000090 0 NOTYPE LOCAL DEFAULT [[#]] (nonalloc0) sym0
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# CHECK1: 0000000000000088 0 NOTYPE LOCAL DEFAULT [[#]] (nonalloc1) sym1
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# RUN: ld.lld -pie a.o --compress-sections '*c0=zlib' --compress-sections .debug_str=zstd:3 -o out2
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# RUN: llvm-readelf -SrsX -x nonalloc0 -x .debug_str out2 | FileCheck %s --check-prefix=CHECK2
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# CHECK2: Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK2: foo0 PROGBITS [[#%x,FOO0:]] [[#%x,]] [[#%x,]] 00 A 0 0 8
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# CHECK2-NEXT: foo1 PROGBITS [[#%x,FOO1:]] [[#%x,]] [[#%x,]] 00 A 0 0 8
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# CHECK2-NEXT: .text PROGBITS [[#%x,TEXT:]] [[#%x,]] [[#%x,]] 00 AX 0 0 4
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# CHECK2: nonalloc0 PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00 C 0 0 1
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# CHECK2-NEXT: nonalloc1 PROGBITS 0000000000000000 [[#%x,]] 000088 00 0 0 8
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# CHECK2-NEXT: smallc0 PROGBITS 0000000000000000 [[#%x,]] 00000c 00 0 0 1
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# CHECK2-NEXT: .debug_str PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 01 MSC 0 0 1
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# CHECK2: 0000000000000090 0 NOTYPE LOCAL DEFAULT [[#]] (nonalloc0) sym0
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# CHECK2: 0000000000000088 0 NOTYPE LOCAL DEFAULT [[#]] (nonalloc1) sym1
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# CHECK2: Hex dump of section 'nonalloc0':
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## zlib with ch_size=0x90
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# CHECK2-NEXT: 01000000 00000000 90000000 00000000
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# CHECK2-NEXT: 01000000 00000000 {{.*}}
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# CHECK2: Hex dump of section '.debug_str':
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## zstd with ch_size=0x38
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# CHECK2-NEXT: 02000000 00000000 38000000 00000000
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# CHECK2-NEXT: 01000000 00000000 {{.*}}
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## --compress-sections takes precedence.
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# RUN: ld.lld a.o --compress-sections .debug_str=zstd --compress-debug-sections=none -o out3
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# RUN: llvm-readelf -S out3 | FileCheck %s --check-prefix=CHECK3
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# CHECK3: .debug_str PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 01 MSC 0 0 1
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# RUN: not ld.lld a.o --compress-sections '*0=zlib' 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR-ALLOC --implicit-check-not=error:
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# ERR-ALLOC: error: --compress-sections: section 'foo0' with the SHF_ALLOC flag cannot be compressed
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# RUN: not ld.lld --compress-sections=foo a.o 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR1 --implicit-check-not=error:
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# ERR1: error: --compress-sections: parse error, not 'section-glob=[none|zlib|zstd]'
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# RUN: not ld.lld --compress-sections 'a[=zlib' a.o 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR2 --implicit-check-not=error:
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# ERR2: error: --compress-sections: invalid glob pattern, unmatched '['
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# RUN: not ld.lld a.o --compress-sections='.debug*=zlib-gabi' --compress-sections='.debug*=' 2>&1 | \
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# RUN: FileCheck -check-prefix=ERR3 %s
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# ERR3: unknown --compress-sections value: zlib-gabi
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# ERR3-NEXT: --compress-sections: parse error, not 'section-glob=[none|zlib|zstd]'
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# RUN: not ld.lld a.o --compress-sections='a=zlib:' --compress-sections='a=zlib:-1' 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR4 --implicit-check-not=error:
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# ERR4: error: --compress-sections: expected a non-negative integer compression level, but got ''
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# ERR4: error: --compress-sections: expected a non-negative integer compression level, but got '-1'
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## Invalid compression level for zlib.
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# RUN: not ld.lld a.o --compress-sections='.debug*=zlib:99' 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR6 --implicit-check-not=error:
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# ERR6: error: --compress-sections: deflateInit2 returned -2
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.globl _start
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_start:
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ret
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.section foo0,"a"
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.balign 8
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.quad .text-.
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.quad .text-.
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.space 128
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.section foo1,"a"
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.balign 8
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.quad .text-.
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.quad .text-.
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.space 128
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.section nonalloc0,""
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.balign 8
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.quad .text+1
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.quad .text+2
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.space 128
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sym0:
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.section nonalloc1,""
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.balign 8
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.quad 42
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.space 128
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sym1:
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.section smallc0,""
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.balign 8
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.space 12
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "AAAAAAAAAAAAAAAAAAAAAAAAAAA"
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.Linfo_string1:
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.asciz "BBBBBBBBBBBBBBBBBBBBBBBBBBB"
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