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| author | Puyan Lotfi <puyan@puyan.org> | 2018-09-07 08:10:22 +0000 |
|---|---|---|
| committer | Puyan Lotfi <puyan@puyan.org> | 2018-09-07 08:10:22 +0000 |
| commit | 99124cc082d8b5d5a07bb80a4a37a0a88d6fade4 (patch) | |
| tree | 5e4b9d4de8ab7ac93e3eaa1f6215b2e2d3e7a75d /llvm/tools/llvm-objcopy/ObjcopyOpts.td | |
| parent | abbb894ff58cff160f81954d794d009c3cb92eb9 (diff) | |
| download | bcm5719-llvm-99124cc082d8b5d5a07bb80a4a37a0a88d6fade4.tar.gz bcm5719-llvm-99124cc082d8b5d5a07bb80a4a37a0a88d6fade4.zip | |
[llvm-objcopy] Dwarf .debug section compression support (zlib, zlib-gnu).
Third Attempt:
- Alignment issues resolved.
- zlib::isAvailable() detected.
- ArrayRef misuse fixed.
Usage:
llvm-objcopy --compress-debug-sections=zlib foo.o
llvm-objcopy --compress-debug-sections=zlib-gnu foo.o
In both cases the debug section contents is compressed with zlib. In the GNU
style case the header is the "ZLIB" magic string followed by the uint64 big-
endian decompressed size. In the non-GNU mode the header is the
Elf(32|64)_Chdr.
Decompression support is coming soon.
Differential Revision: https://reviews.llvm.org/D49678
llvm-svn: 341635
Diffstat (limited to 'llvm/tools/llvm-objcopy/ObjcopyOpts.td')
| -rw-r--r-- | llvm/tools/llvm-objcopy/ObjcopyOpts.td | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/tools/llvm-objcopy/ObjcopyOpts.td b/llvm/tools/llvm-objcopy/ObjcopyOpts.td index c34494736c3..e56dc52758c 100644 --- a/llvm/tools/llvm-objcopy/ObjcopyOpts.td +++ b/llvm/tools/llvm-objcopy/ObjcopyOpts.td @@ -17,6 +17,12 @@ def I : JoinedOrSeparate<[ "-" ], "I">, Alias<input_target>; defm output_target : Eq<"output-target">, HelpText<"Format of the output file">, Values<"binary">; +def compress_debug_sections : Flag<["--", "-"], "compress-debug-sections">; +def compress_debug_sections_eq : Joined<["--", "-"], "compress-debug-sections=">, + MetaVarName<"[ zlib | zlib-gnu ]">, + HelpText<"Compress DWARF debug sections using " + "specified style. Supported styles: " + "'zlib-gnu' and 'zlib'">; def O : JoinedOrSeparate<["-"], "O">, Alias<output_target>; defm split_dwo : Eq<"split-dwo">, |
