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modpost: Add .irqentry.text to OTHER_SECTIONS

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[ Upstream commit 7912405643a14b527cd4a4f33c1d4392da900888 ]

The compiler can fully inline the actual handler function of an interrupt
entry into the .irqentry.text entry point. If such a function contains an
access which has an exception table entry, modpost complains about a
section mismatch:

  WARNING: vmlinux.o(__ex_table+0x447c): Section mismatch in reference ...

  The relocation at __ex_table+0x447c references section ".irqentry.text"
  which is not in the list of authorized sections.

Add .irqentry.text to OTHER_SECTIONS to cure the issue.

Reported-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # needed for linux-5.4-y
Link: https://lore.kernel.org/all/20241128111844.GE10431@google.com/
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thomas Gleixner 2024-12-01 12:17:30 +01:00 committed by Greg Kroah-Hartman
parent 973cfc7ea3
commit 7ff5af6bdb
1 changed files with 1 additions and 1 deletions
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2
scripts/mod/modpost.c
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@ -940,7 +940,7 @@ static void check_section(const char *modname, struct elf_info *elf,
".kprobes.text", ".cpuidle.text", ".noinstr.text" ".kprobes.text", ".cpuidle.text", ".noinstr.text"
#define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \ #define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \
".fixup", ".entry.text", ".exception.text", \ ".fixup", ".entry.text", ".exception.text", \
".coldtext", ".softirqentry.text" ".coldtext", ".softirqentry.text", ".irqentry.text"
#define INIT_SECTIONS ".init.*" #define INIT_SECTIONS ".init.*"
#define MEM_INIT_SECTIONS ".meminit.*" #define MEM_INIT_SECTIONS ".meminit.*"