@@ -12,6 +12,8 @@ enum {
ARM_SEC_CORE,
ARM_SEC_EXIT,
ARM_SEC_DEVEXIT,
+ ARM_SEC_HOT,
+ ARM_SEC_UNLIKELY,
ARM_SEC_MAX,
};
@@ -292,12 +292,20 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
maps[ARM_SEC_CORE].unw_sec = s;
else if (strcmp(".ARM.exidx.exit.text", secname) == 0)
maps[ARM_SEC_EXIT].unw_sec = s;
+ else if (strcmp(".ARM.exidx.text.unlikely", secname) == 0)
+ maps[ARM_SEC_UNLIKELY].unw_sec = s;
+ else if (strcmp(".ARM.exidx.text.hot", secname) == 0)
+ maps[ARM_SEC_HOT].unw_sec = s;
else if (strcmp(".init.text", secname) == 0)
maps[ARM_SEC_INIT].txt_sec = s;
else if (strcmp(".text", secname) == 0)
maps[ARM_SEC_CORE].txt_sec = s;
else if (strcmp(".exit.text", secname) == 0)
maps[ARM_SEC_EXIT].txt_sec = s;
+ else if (strcmp(".text.unlikely", secname) == 0)
+ maps[ARM_SEC_UNLIKELY].txt_sec = s;
+ else if (strcmp(".text.hot", secname) == 0)
+ maps[ARM_SEC_HOT].txt_sec = s;
}
for (i = 0; i < ARM_SEC_MAX; i++)
It appears that gcc may put some code in ".text.unlikely" or ".text.hot" sections. Right now those aren't accounted for in unwind tables. Add them. I found some docs about this at: http://gcc.gnu.org/onlinedocs/gcc-4.6.2/gcc.pdf Without this, if you have slub_debug turned on, you can get messages that look like this: unwind: Index not found 7f008c50 Signed-off-by: Doug Anderson <dianders@chromium.org> --- arch/arm/include/asm/module.h | 2 ++ arch/arm/kernel/module.c | 8 ++++++++ 2 files changed, 10 insertions(+)