powerpc/ftrace: directly call of function graph tracer by ftrace caller

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Modify function graph tracer to be handled directly by the standard
ftrace caller.

This is made possible as powerpc now supports
CONFIG_DYNAMIC_FTRACE_WITH_ARGS.

This change simplifies the call of function graph ftrace.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/04d196585ff81bde06a000bd9c633a33a5b21130.1640017960.git.christophe.leroy@csgroup.eu

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This commit is contained in:

Christophe Leroy 2021-12-20 16:38:35 +00:00 • committed by Michael Ellerman

parent 0c81ed5ed4

commit 830213786c

4 changed files with 20 additions and 114 deletions

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6

arch/powerpc/include/asm/ftrace.h

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11

arch/powerpc/kernel/trace/ftrace.c

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53

arch/powerpc/kernel/trace/ftrace_32.S

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64

arch/powerpc/kernel/trace/ftrace_64_mprofile.S

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