[PATCH] D114737: [lld][Macho] Include dead-stripped symbols in mapfile
Roger Kim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat Jan 1 18:04:43 PST 2022
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Roger retitled this revision from "[lld][Macho] Provide option to print dead-stripped symbols." to "[lld][Macho] Include dead-stripped symbols in mapfile".
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Small fixes.
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small fix.
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Compilation fix.
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test passes
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Update.
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Update
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I expect this will need some advice but I think it's ready for its initial review.
ld64 outputs dead stripped symbols when using the -dead-strip flag. This change mimics that behavior for lld.
ld64's -dead_strip flag outputs:
$ ld -map map test.o foo.o -o out -L/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib -lSystem
$ cat map
# Path: out
# Arch: x86_64
# Object files:
[ 0] linker synthesized
[ 1] test.o
[ 2] foo.o
# Sections:
# Address Size Segment Section
0x100003FB7 0x00000001 __TEXT __text
0x100003FB8 0x00000000 __TEXT obj
0x100003FB8 0x00000048 __TEXT __unwind_info
# Symbols:
# Address Size File Name
0x100003FB7 0x00000001 [ 1] _main
0x100003FB8 0x00000000 [ 2] _foo
0x100003FB8 0x00000048 [ 0] compact unwind info
# Dead Stripped Symbols:
# Size File Name
<<dead>> 0x00000001 [ 1] _number
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D114737
Files:
lld/MachO/MapFile.cpp
lld/test/MachO/dead-strip.s
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