On Tue, 9 Aug 2022 16:24:25 +0530, Naveen N. Rao wrote: > Extend commit b39181f7c6907d ("ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to > avoid adding weak function") to ppc32 and ppc64 -mprofile-kernel by > defining FTRACE_MCOUNT_MAX_OFFSET. > > For ppc64 -mprofile-kernel ABI, we can have two instructions at function > entry for TOC setup followed by 'mflr r0' and 'bl _mcount'. So, the > mcount location is at most the 4th instruction in a function. For ppc32, > mcount location is always the 3rd instruction in a function, preceded by > 'mflr r0' and 'stw r0,4(r1)'. > > [...]
Applied to powerpc/next. [1/1] powerpc/ftrace: Ignore weak functions https://git.kernel.org/powerpc/c/7af82ff90a2b0690c2c45818fcce4c4ac3b187f3 cheers