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| author | Nick Desaulniers <ndesaulniers@google.com> | 2020-11-09 10:35:28 -0800 |
|---|---|---|
| committer | Nolen Johnson <johnsonnolen@gmail.com> | 2022-11-01 00:39:47 -0400 |
| commit | c4ddd677f7e3431a0b469488f43c374d9adc7e18 (patch) | |
| tree | 67d61eef28f00702f4ebfdb602ef4c3e17d44ce3 /scripts/sign-file.c | |
| parent | 1b880b6e19f86bf73ef3b968ed4583565038248a (diff) | |
Kbuild: do not emit debug info for assembly with LLVM_IAS=1
commit b8a9092330da2030496ff357272f342eb970d51b upstream.
Clang's integrated assembler produces the warning for assembly files:
warning: DWARF2 only supports one section per compilation unit
If -Wa,-gdwarf-* is unspecified, then debug info is not emitted for
assembly sources (it is still emitted for C sources). This will be
re-enabled for newer DWARF versions in a follow up patch.
Enables defconfig+CONFIG_DEBUG_INFO to build cleanly with
LLVM=1 LLVM_IAS=1 for x86_64 and arm64.
Cc: <stable@vger.kernel.org>
Link: https://github.com/ClangBuiltLinux/linux/issues/716
Reported-by: Dmitry Golovin <dima@golovin.in>
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Suggested-by: Dmitry Golovin <dima@golovin.in>
Suggested-by: Nathan Chancellor <natechancellor@gmail.com>
Suggested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Fangrui Song <maskray@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nd: backport to avoid conflicts from:
commit 10e68b02c861 ("Makefile: support compressed debug info")
commit 7b16994437c7 ("Makefile: Improve compressed debug info support detection")
commit 695afd3d7d58 ("kbuild: Simplify DEBUG_INFO Kconfig handling")]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change-Id: Ia4da22fe1254ea433d4d346fc24158d66663c11a
Diffstat (limited to 'scripts/sign-file.c')
0 files changed, 0 insertions, 0 deletions