Dear stable kernel maintainers,
Please consider applying the following patch for 4.{4,9,14,19}-y
kernel branches.
9c8e2f6d3d36 scripts/recordmcount.{c,pl}: support -ffunction-sections
.text.* section names
It is needed to fix a kernel boot issue with trunk clang compiler
which now puts functions with __cold attribute to .text.unlikely
section. Please feel free to check
https://bugs.chromium.org/p/chromium/issues/detail?id=1184483 for
details.
9c8e2f6d3d36 applies cleanly for 4.14 and 4.19.
For 4.4 and 4.9, a slight changed diff for scripts/recordmcount.c is
needed to apply the patch cleanly. The final changed lines are still
the same.
scripts/recordmcount.c diff for 4.4 and 4.9 kernel.
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -362,7 +362,7 @@ static uint32_t (*w2)(uint16_t);
static int
is_mcounted_section_name(char const *const txtname)
{
- return strcmp(".text", txtname) == 0 ||
+ return strncmp(".text", txtname, 5) == 0 ||
strcmp(".ref.text", txtname) == 0 ||
strcmp(".sched.text", txtname) == 0 ||
strcmp(".spinlock.text", txtname) == 0 ||
Thanks,
Manoj
