fcab06bd85
This diff paves the way for {D102964} which adds a new kind of
InputSection.
We previously maintained section ordering implicitly: we created
InputSections as we parsed each file in command-line order, and passed
on this ordering when we created OutputSections and OutputSegments by
iterating over these InputSections. The implicitness of the ordering
made it difficult to refactor the code to e.g. handle a new type of
InputSection. As such, I've codified the ordering explicitly via
`inputOrder` fields. This also allows us to use `sort` instead of
`stable_sort`.
Benchmarking chromium_framework on my 3.2 GHz 16-Core Intel Xeon W:
N Min Max Median Avg Stddev
x 20 4.23 4.35 4.27 4.274 0.030157481
+ 20 4.24 4.38 4.27 4.2815 0.033759989
No difference proven at 95.0% confidence
Reviewed By: #lld-macho, alexshap
Differential Revision: https://reviews.llvm.org/D102972
72 lines
1.8 KiB
ArmAsm
72 lines
1.8 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t && mkdir -p %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/test.o
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# RUN: %lld -execute -o %t/exec %t/test.o -lSystem
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# RUN: %lld -dylib -o %t/dylib %t/test.o -lSystem
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# RUN: %lld -bundle -o %t/bundle %t/test.o -lSystem
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# RUN: llvm-objdump --macho --all-headers %t/exec | \
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# RUN: FileCheck %s --check-prefixes=EXEC,COMMON
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# RUN: llvm-objdump --macho --all-headers %t/dylib | \
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# RUN: FileCheck %s --check-prefixes=DYLIB,COMMON
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# RUN: llvm-objdump --macho --all-headers %t/bundle | \
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# RUN: FileCheck %s --check-prefix=COMMON
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## Check that load commands and sections within segments occur in the proper
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## sequence. On ARM64 kernel is especially picky about layout, and will
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## barf with errno=EBADMACHO when the sequence is wrong.
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# EXEC: cmd LC_SEGMENT_64
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# EXEC: segname __PAGEZERO
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# COMMON: cmd LC_SEGMENT_64
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# COMMON: segname __TEXT
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# COMMON: sectname __text
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# COMMON: segname __TEXT
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# COMMON: sectname __cstring
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# COMMON: segname __TEXT
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# COMMON: cmd LC_SEGMENT_64
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# COMMON: segname __DATA_CONST
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# COMMON: sectname __got
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# COMMON: segname __DATA_CONST
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# COMMON: sectname __const
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# COMMON: segname __DATA_CONST
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# COMMON: cmd LC_SEGMENT_64
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# COMMON: segname __DATA
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# COMMON: sectname __data
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# COMMON: segname __DATA
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# COMMON: cmd LC_SEGMENT_64
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# COMMON: segname __LINKEDIT
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# COMMON: cmd LC_DYLD_INFO_ONLY
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# COMMON: cmd LC_SYMTAB
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# COMMON: cmd LC_DYSYMTAB
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# EXEC: cmd LC_LOAD_DYLINKER
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# EXEC: cmd LC_MAIN
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# DYLIB: cmd LC_ID_DYLIB
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# COMMON: cmd LC_UUID
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# COMMON: cmd LC_BUILD_VERSION
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# COMMON: cmd LC_LOAD_DYLIB
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.section __TEXT,__cstring
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_str:
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.asciz "Help me! I'm trapped in a test!\n"
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.globl _mutable
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.section __DATA,__data
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mutable:
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.long 0x1234
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.globl _constant
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.section __DATA,__const
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constant:
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.long 0x4567
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.text
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.global _main
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_main:
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mov ___nan@GOTPCREL(%rip), %rax
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ret
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