ftrace/x86: Add register_ftrace_direct() for custom trampolines

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Enable x86 to allow for register_ftrace_direct(), where a custom trampoline
may be called directly from an ftrace mcount/fentry location.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

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This commit is contained in:

Steven Rostedt (VMware) 2019-11-08 13:11:39 -05:00

parent ed9dafebce

commit 562955fe6a

5 changed files with 59 additions and 7 deletions

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1

arch/x86/Kconfig

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13

arch/x86/include/asm/ftrace.h

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12

arch/x86/kernel/ftrace.c

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34

arch/x86/kernel/ftrace_64.S

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6

include/linux/ftrace.h

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