https://bugs.llvm.org/show_bug.cgi?id=45767
Bug ID: 45767
Summary: `ld.lld --help ` doesn't mention zlib-gnu or zlib-gabi
support
Product: lld
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: ELF
Assignee: unassignedb...@nondot.org
Reporter: ndesaulni...@google.com
CC: dblai...@gmail.com, echri...@gmail.com,
llvm-bugs@lists.llvm.org, mask...@google.com,
ruppre...@google.com, smithp...@googlemail.com,
srhi...@google.com
I'm looking into enabling compressed debug info support within the Linux
kernel.
I noticed from `man 1 ld` that the documentation on
`--compress-debug-sections=` says:
The default compression behaviour varies depending upon the
target involved and the configure options used to build the
toolchain. The default can be determined by examining the output
from the linker's --help option.
If I run:
$ ld.lld --help | grep zlib
--compress-debug-sections=[none,zlib]
$ ld.bfd --help | grep zlib
--compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]
Compress DWARF debug sections using zlib
Does lld not support `zlib-gnu` or `zlib-gabi`? I'm not really sure which
option is even preferred, so I'll run some builds and compare zdebug_* section
sizes.
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