Re: [PATCH 01/10] Makefile: Add option CONFIG_DISABLE_GCC_AUTOMATIC_INLINING
From: David Rientjes <rientjes@google.com>
Date: 2012-09-09 21:25:48
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On Sat, 8 Sep 2012, Ezequiel Garcia wrote:
quoted hunk ↗ jump to hunk
diff --git a/Makefile b/Makefile index ddf5be9..df6045a 100644 --- a/Makefile +++ b/Makefile@@ -561,6 +561,10 @@ else KBUILD_CFLAGS += -O2 endif +ifdef CONFIG_DISABLE_GCC_AUTOMATIC_INLINING +KBUILD_CFLAGS += -fno-inline-small-functions
This isn't the only option that controls automatic inlining of functions, see indirect-inlining, inline-functions, and inline-functions-called-once.
quoted hunk ↗ jump to hunk
+endif + include $(srctree)/arch/$(SRCARCH)/Makefile ifdef CONFIG_READABLE_ASMdiff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 2403a63..c8fd50f 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug@@ -1265,6 +1265,17 @@ config LATENCYTOP source mm/Kconfig.debug source kernel/trace/Kconfig +config DISABLE_GCC_AUTOMATIC_INLINING + bool "Disable gcc automatic inlining" + depends on TRACING + help + This option tells gcc he's not allowed to inline functions automatically, + when they are not marked as 'inline'. + In turn, this enables to trace an event with an accurate call site. + Of course, the resultant kernel is slower and slightly smaller. + + Select this option only if you want to trace call sites accurately. + config PROVIDE_OHCI1394_DMA_INIT bool "Remote debugging over FireWire early on boot" depends on PCI && X86-- 1.7.8.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
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