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authorPhil Carmody <ext-phil.2.carmody@nokia.com>2010-08-19 15:19:04 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-09-02 15:31:35 +0100
commit09e56a2d076c2afb2a1932ae4283e10ef2d26ef3 (patch)
treee09b4b469af8ebfac601520d81f98b1b274dda84 /arch/arm/kernel/module.c
parente5f7772eec3ec342ecfe686ab8330ef538af134b (diff)
ARM: 6340/1: module - additional unwind tables for exit/devexit sections
Without these, exit functions cannot be stack-traced, so to speak. This implies that module unloads that perform allocations (don't laugh) will cause noisy warnings on the console when kmemleak is enabled, as it presumes that all code's call chains are traceable. Similarly, BUGs and WARN_ONs will give additional console spam. Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/module.c')
-rw-r--r--arch/arm/kernel/module.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 0aa622e84b2..d9bd786ce23 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -80,12 +80,20 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
maps[ARM_SEC_DEVINIT].unw_sec = s;
else if (strcmp(".ARM.exidx", secname) == 0)
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.devexit.text", secname) == 0)
+ maps[ARM_SEC_DEVEXIT].unw_sec = s;
else if (strcmp(".init.text", secname) == 0)
maps[ARM_SEC_INIT].sec_text = s;
else if (strcmp(".devinit.text", secname) == 0)
maps[ARM_SEC_DEVINIT].sec_text = s;
else if (strcmp(".text", secname) == 0)
maps[ARM_SEC_CORE].sec_text = s;
+ else if (strcmp(".exit.text", secname) == 0)
+ maps[ARM_SEC_EXIT].sec_text = s;
+ else if (strcmp(".devexit.text", secname) == 0)
+ maps[ARM_SEC_DEVEXIT].sec_text = s;
}
#endif
return 0;