diff options
| author | Alex Sverdlin <alexander.sverdlin@nokia.com> | 2022-09-27 13:08:37 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-11-07 14:18:59 +0000 |
| commit | 4ab07fd3fbe6b6fe5f28e0e2987eb02bedc2b495 (patch) | |
| tree | bb709a7e4a21ba562f8b63652c2a5bd21ce4d6e2 /arch/arm/include | |
| parent | e66372ecb80dc5179c7abb880229c7452e813d15 (diff) | |
ARM: 9252/1: module: Teach unwinder about PLTs
"unwind: Index not found eef26358" warnings keep popping up on
CONFIG_ARM_MODULE_PLTS-enabled systems if the PC points to a PLT veneer.
Teach the unwinder how to deal with them, taking into account they don't
change state of the stack or register file except loading PC.
Link: https://lore.kernel.org/linux-arm-kernel/20200402153845.30985-1-kursad.oney@broadcom.com/
Tested-by: Kursad Oney <kursad.oney@broadcom.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/module.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h index 5546c9751478..07c51a34f77d 100644 --- a/arch/arm/include/asm/module.h +++ b/arch/arm/include/asm/module.h @@ -37,6 +37,11 @@ struct mod_arch_specific { struct module; u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val); +#ifdef CONFIG_ARM_MODULE_PLTS +bool in_module_plt(unsigned long loc); +#else +static inline bool in_module_plt(unsigned long loc) { return false; } +#endif #ifdef CONFIG_THUMB2_KERNEL #define HAVE_ARCH_KALLSYMS_SYMBOL_VALUE |