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authorNicholas Piggin <npiggin@gmail.com>2016-09-16 20:48:08 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2016-09-19 10:53:54 +1000
commit03465f899bdac70d34f6ca447a74d8ae9e284ce5 (patch)
tree5822e3b95e15197b2ea837dca99da30342c7b618 /arch/powerpc/kernel/misc_32.S
parente1c0d66fcb179a1737b3d5cc11c6e37bcabbd861 (diff)
powerpc: Use kprobe blacklist for exception handlers
Currently we mark the C implementations of some exception handlers as __kprobes. This has the effect of putting them in the ".kprobes.text" section, which separates them from the rest of the text. Instead we can use the blacklist macros to add the symbols to a blacklist which kprobes will check. This allows the linker to move exception handler functions close to callers and avoids trampolines in larger kernels. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Reword change log a bit] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/misc_32.S')
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