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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2017-06-27 14:59:48 +0300
committerThomas Gleixner <tglx@linutronix.de>2017-06-29 22:33:27 +0200
commitbb43dbc5e09d52c6085dfee65f4f923b3fbcd1d4 (patch)
treebaec04e7292e9bca897ad52922d77d39ad31305e /arch/x86/boot/compressed
parent4a06370bcb674af88679a4f2c5c87c3e40688935 (diff)
downloadop-kernel-dev-bb43dbc5e09d52c6085dfee65f4f923b3fbcd1d4.zip
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x86/ftrace: Exclude functions in head64.c from function-tracing
A recent commit moved most logic of early boot up from startup_64() written in assembly to __startup_64() written in C. Fengguang reported breakage due to the change. It was tracked down to CONFIG_FUNCTION_TRACER being enabled. Tracing this function is not possible because it's invoked from the earliest boot stage before the relocation fixups have been done. It is the function doing the relocation. Exclude it from being built with tracer stubs. Fixes: c88d71508e36 ("x86/boot/64: Rewrite startup_64() in C") Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: lkp@01.org Link: http://lkml.kernel.org/r/20170627115948.17938-1-kirill.shutemov@linux.intel.com
Diffstat (limited to 'arch/x86/boot/compressed')
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