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5fd6d96e6e
Summary: Add support for --rename-section flags from gnu objcopy. Not all flags appear to have an effect for ELF objects, but allowing them would allow easier drop-in replacement. Other unrecognized flags are rejected. This was only tested by comparing flags printed by "readelf -e <.o>" against the output of gnu vs llvm objcopy, it hasn't been tested to be valid beyond that. Reviewers: jakehehrlich, alexshap Subscribers: llvm-commits, paulsemel, alexshap Differential Revision: https://reviews.llvm.org/D49870 llvm-svn: 338582
116 lines
3.3 KiB
Plaintext
116 lines
3.3 KiB
Plaintext
# Test that cpu/processor-specific SHF_* flags are preserved.
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# ===== x86_64 =====
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# RUN: yaml2obj -docnum 1 %s > %t-x86_64.o
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# RUN: llvm-objcopy --rename-section=.foo=.bar,alloc %t-x86_64.o
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# RUN: llvm-readobj -sections %t-x86_64.o | FileCheck %s --check-prefix=X86_64
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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: .foo
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Type: SHT_PROGBITS
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Flags: [ SHF_X86_64_LARGE ]
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# X86_64: Name: .bar
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# X86_64-NEXT: Type: SHT_PROGBITS
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# X86_64-NEXT: Flags [
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# X86_64-NEXT: SHF_ALLOC (0x2)
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# X86_64-NEXT: SHF_WRITE (0x1)
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# X86_64-NEXT: SHF_X86_64_LARGE (0x10000000)
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# X86_64-NEXT: ]
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# ===== hex =====
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# RUN: yaml2obj -docnum 2 %s > %t-hex.o
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# RUN: llvm-objcopy --rename-section=.foo=.bar,alloc %t-hex.o
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# RUN: llvm-readobj -sections %t-hex.o | FileCheck %s --check-prefix=HEX
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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_HEXAGON
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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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Flags: [ SHF_HEX_GPREL ]
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# HEX: Name: .bar
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# HEX-NEXT: Type: SHT_PROGBITS
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# HEX-NEXT: Flags [
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# HEX-NEXT: SHF_ALLOC (0x2)
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# HEX-NEXT: SHF_HEX_GPREL (0x10000000)
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# HEX-NEXT: SHF_WRITE (0x1)
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# HEX-NEXT: ]
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# ===== mips =====
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# RUN: yaml2obj -docnum 3 %s > %t-mips.o
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# RUN: llvm-objcopy --rename-section=.foo=.bar,alloc %t-mips.o
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# RUN: llvm-readobj -sections %t-mips.o | FileCheck %s --check-prefix=MIPS
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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_MIPS
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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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Flags: [ SHF_MIPS_NODUPES, SHF_MIPS_NAMES, SHF_MIPS_LOCAL,
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SHF_MIPS_NOSTRIP, SHF_MIPS_GPREL, SHF_MIPS_MERGE,
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SHF_MIPS_ADDR, SHF_MIPS_STRING ]
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# Note: llvm-readobj prints SHF_EXCLUDE/SHF_MASKPROC since specifying all
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# SHF_MIPS_* flags covers the same bitset.
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# MIPS: Name: .bar
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# MIPS-NEXT: Type: SHT_PROGBITS
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# MIPS-NEXT: Flags [
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# MIPS-NEXT: SHF_ALLOC (0x2)
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# MIPS-NEXT: SHF_EXCLUDE (0x80000000)
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# MIPS-NEXT: SHF_MASKPROC (0xF0000000)
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# MIPS-NEXT: SHF_MIPS_ADDR (0x40000000)
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# MIPS-NEXT: SHF_MIPS_GPREL (0x10000000)
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# MIPS-NEXT: SHF_MIPS_LOCAL (0x4000000)
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# MIPS-NEXT: SHF_MIPS_MERGE (0x20000000)
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# MIPS-NEXT: SHF_MIPS_NAMES (0x2000000)
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# MIPS-NEXT: SHF_MIPS_NODUPES (0x1000000)
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# MIPS-NEXT: SHF_MIPS_NOSTRIP (0x8000000)
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# MIPS-NEXT: SHF_MIPS_STRING (0x80000000)
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# MIPS-NEXT: SHF_WRITE (0x1)
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# MIPS-NEXT: ]
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# ===== arm =====
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# RUN: yaml2obj -docnum 4 %s > %t-arm.o
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# RUN: llvm-objcopy --rename-section=.foo=.bar,alloc %t-arm.o
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# RUN: llvm-readobj -sections %t-arm.o | FileCheck %s --check-prefix=ARM
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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_ARM
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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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Flags: [ SHF_ARM_PURECODE ]
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# ARM: Name: .bar
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# ARM-NEXT: Type: SHT_PROGBITS
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# ARM-NEXT: Flags [
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# ARM-NEXT: SHF_ALLOC (0x2)
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# ARM-NEXT: SHF_ARM_PURECODE (0x20000000)
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# ARM-NEXT: SHF_WRITE (0x1)
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# ARM-NEXT: ]
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