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MachO and COFF quite reasonably only define the size for common symbols.
We used to try to figure out the "size" by computing the gap from one symbol to
the next.
This would not be correct in general, since a part of a section can belong to no
visible symbol (padding, private globals).
It was also really expensive, since we would walk every symbol to find the size
of one.
If a caller really wants this, it can sort all the symbols once and get all the
gaps ("size") in O(n log n) instead of O(n^2).
On MachO this also has the advantage of centralizing all the checks for an
invalid n_sect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238028 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
2.2 KiB
Plaintext
44 lines
2.2 KiB
Plaintext
RUN: yaml2obj %p/Inputs/COFF/i386.yaml | llvm-objdump -t - \
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RUN: | FileCheck %s -check-prefix COFF-i386
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RUN: llvm-objdump -t %p/Inputs/trivial-object-test.elf-i386 \
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RUN: | FileCheck %s -check-prefix ELF-i386
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RUN: llvm-objdump -t %p/Inputs/trivial-object-test.macho-i386 \
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RUN: | FileCheck %s -check-prefix macho-i386
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RUN: llvm-objdump -t %p/Inputs/shared-object-test.elf-i386 \
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RUN: | FileCheck %s -check-prefix ELF-shared
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COFF-i386: file format
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COFF-i386: SYMBOL TABLE:
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COFF-i386: [ 0](sec 1)(fl 0x00)(ty 0)(scl 3) (nx 1) 0x00000000 .text
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COFF-i386: AUX scnlen 0x24 nreloc 3 nlnno 0 checksum 0x0 assoc 1 comdat 0
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COFF-i386: [ 2](sec 2)(fl 0x00)(ty 0)(scl 3) (nx 1) 0x00000000 .data
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COFF-i386: AUX scnlen 0xd nreloc 0 nlnno 0 checksum 0x0 assoc 2 comdat 0
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COFF-i386: [ 4](sec 1)(fl 0x00)(ty 20)(scl 2) (nx 0) 0x00000000 _main
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COFF-i386: [ 5](sec 2)(fl 0x00)(ty 0)(scl 3) (nx 0) 0x00000000 L_.str
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COFF-i386: [ 6](sec 0)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 _puts
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COFF-i386: [ 7](sec 0)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 _SomeOtherFunction
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ELF-i386: trivial-object-test.elf-i386: file format
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ELF-i386: SYMBOL TABLE:
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ELF-i386: 00000000 l df *ABS* 00000000 trivial-object-test.s
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ELF-i386: 00000000 l d .text 00000000 .text
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ELF-i386: 00000024 l d .rodata.str1.1 00000000 .rodata.str1.1
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ELF-i386: 00000031 l d .note.GNU-stack 00000000 .note.GNU-stack
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ELF-i386: 00000000 g F .text 00000024 main
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ELF-i386: 00000000 *UND* 00000000 SomeOtherFunction
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ELF-i386: 00000000 *UND* 00000000 puts
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macho-i386: trivial-object-test.macho-i386: file format Mach-O 32-bit i386
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macho-i386: SYMBOL TABLE:
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macho-i386: 00000000 g F __TEXT,__text 00000000 _main
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macho-i386: 00000000 *UND* 00000000 _SomeOtherFunction
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macho-i386: 00000000 *UND* 00000000 _puts
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ELF-shared: shared-object-test.elf-i386: file format
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ELF-shared: SYMBOL TABLE:
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ELF-shared: 00000200 l F .text 00000003 local_func
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ELF-shared: 000012b8 l *ABS* 00000000 .hidden _GLOBAL_OFFSET_TABLE_
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ELF-shared: 00001248 l *ABS* 00000000 .hidden _DYNAMIC
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ELF-shared: 000012c4 g .data 00000004 defined_sym
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ELF-shared: 000001f0 g F .text 00000003 global_func
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