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| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-27 15:29:06 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-05-03 22:32:29 +1000 |
| commit | 0c0c52306f4792a41d8a86e7c5d30cd4f442e532 (patch) | |
| tree | 960e8c04e0d74076b3eb20a7a4e6a9d4444ca893 /arch/powerpc/kernel/trace/ftrace_32.S | |
| parent | ae30cc05bed2fd7eb05e4fb53f412783f05ccb7b (diff) | |
| download | linux-0c0c52306f4792a41d8a86e7c5d30cd4f442e532.tar.bz2 | |
powerpc: Only support DYNAMIC_FTRACE not static
We've had dynamic ftrace support for over 9 years since Steve first
wrote it, all the distros use dynamic, and static is basically
untested these days, so drop support for static ftrace.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/trace/ftrace_32.S')
| -rw-r--r-- | arch/powerpc/kernel/trace/ftrace_32.S | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/powerpc/kernel/trace/ftrace_32.S b/arch/powerpc/kernel/trace/ftrace_32.S index afef2c076282..2c29098f630f 100644 --- a/arch/powerpc/kernel/trace/ftrace_32.S +++ b/arch/powerpc/kernel/trace/ftrace_32.S @@ -14,7 +14,6 @@ #include <asm/ftrace.h> #include <asm/export.h> -#ifdef CONFIG_DYNAMIC_FTRACE _GLOBAL(mcount) _GLOBAL(_mcount) /* @@ -47,26 +46,7 @@ _GLOBAL(ftrace_graph_stub) MCOUNT_RESTORE_FRAME /* old link register ends up in ctr reg */ bctr -#else -_GLOBAL(mcount) -_GLOBAL(_mcount) - - MCOUNT_SAVE_FRAME - subi r3, r3, MCOUNT_INSN_SIZE - LOAD_REG_ADDR(r5, ftrace_trace_function) - lwz r5,0(r5) - - mtctr r5 - bctrl - nop - -#ifdef CONFIG_FUNCTION_GRAPH_TRACER - b ftrace_graph_caller -#endif - MCOUNT_RESTORE_FRAME - bctr -#endif EXPORT_SYMBOL(_mcount) _GLOBAL(ftrace_stub) |