ade3c70537
When --compress-debug-sections is given, llvm-objcopy do not compress sections that have "ZLIB" header in data. Normally this signature is used in zlib-gnu compression format. But if zlib-gnu used then the name of the compressed section should start from .z* (e.g .zdebug_info). If it does not, then it is not a zlib-gnu format and section should be treated as a normal uncompressed section. Differential revision: https://reviews.llvm.org/D58908 llvm-svn: 355399
42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
# REQUIRES: zlib
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# RUN: yaml2obj %s -o %t1.o
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# RUN: llvm-objcopy --compress-debug-sections %t1.o %t2.o
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# RUN: llvm-readobj -s %t2.o | FileCheck %s
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# Non-.zdebug* sections whose data does start with "ZLIB" should
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# not be considered as zlib-gnu compressed sections.
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# In this test we have 2 normal sections, one of them starts with "ZLIB",
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# another starts with "ZZZZ". Check we compress both as expected.
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# CHECK: Name: .debug_foo
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# CHECK-NEXT: Type: SHT_PROGBITS
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# CHECK-NEXT: Flags [
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# CHECK-NEXT: SHF_COMPRESSED
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# CHECK-NEXT: ]
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# CHECK: Name: .debug_bar
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# CHECK-NEXT: Type: SHT_PROGBITS
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# CHECK-NEXT: Flags [
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# CHECK-NEXT: SHF_COMPRESSED
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# CHECK-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Name: .debug_foo
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Type: SHT_PROGBITS
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AddressAlign: 0x0000000000000001
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# "ZLIB"
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Content: 5A4C49420000000000000000
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- Name: .debug_bar
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Type: SHT_PROGBITS
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AddressAlign: 0x0000000000000001
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# "ZZZZ"
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Content: 5A5A5A5A0000000000000000
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