kernel_optimize_test/kernel/gcov
Nick Desaulniers 1f5c9efad9 gcov: fix clang-11+ support
commit 60bcf728ee7c60ac2a1f9a0eaceb3a7b3954cd2b upstream.

LLVM changed the expected function signatures for llvm_gcda_start_file()
and llvm_gcda_emit_function() in the clang-11 release.  Users of
clang-11 or newer may have noticed their kernels failing to boot due to
a panic when enabling CONFIG_GCOV_KERNEL=y +CONFIG_GCOV_PROFILE_ALL=y.
Fix up the function signatures so calling these functions doesn't panic
the kernel.

Link: https://reviews.llvm.org/rGcdd683b516d147925212724b09ec6fb792a40041
Link: https://reviews.llvm.org/rG13a633b438b6500ecad9e4f936ebadf3411d0f44
Link: https://lkml.kernel.org/r/20210312224132.3413602-2-ndesaulniers@google.com
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reported-by: Prasad Sodagudi <psodagud@quicinc.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Cc: <stable@vger.kernel.org>	[5.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-30 14:31:54 +02:00
..
base.c gcov: clang support 2019-05-14 19:52:51 -07:00
clang.c gcov: fix clang-11+ support 2021-03-30 14:31:54 +02:00
fs.c kernel/gcov/fs.c: gcov_seq_next() should increase position index 2020-04-10 15:36:22 -07:00
gcc_4_7.c gcov: add support for GCC 10.1 2020-09-11 09:33:54 -07:00
gcc_base.c gcov: clang: move common GCC code into gcc_base.c 2019-05-14 19:52:51 -07:00
gcov.h gcov: clang support 2019-05-14 19:52:51 -07:00
Kconfig gcov: add support for GCC 10.1 2020-09-11 09:33:54 -07:00
Makefile gcov: Remove old GCC 3.4 support 2020-04-16 12:28:35 +01:00