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| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2017-04-19 18:22:27 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-24 19:07:58 +1000 |
| commit | 1b32cd1715378c9a3856df4a80920f8e241f914c (patch) | |
| tree | 4f8a016601e31101e6b26c44ab563cc680dc7ff1 /arch/powerpc/kernel/optprobes.c | |
| parent | ead514d5fb30a0889d51c0f0e35c3e346165a955 (diff) | |
| download | talos-obmc-linux-1b32cd1715378c9a3856df4a80920f8e241f914c.tar.gz talos-obmc-linux-1b32cd1715378c9a3856df4a80920f8e241f914c.zip | |
powerpc: Introduce a new helper to obtain function entry points
kprobe_lookup_name() is specific to the kprobe subsystem and may not always
return the function entry point (in a subsequent patch for KPROBES_ON_FTRACE).
For looking up function entry points, introduce a separate helper and use it
in optprobes.c
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/optprobes.c')
| -rw-r--r-- | arch/powerpc/kernel/optprobes.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/optprobes.c b/arch/powerpc/kernel/optprobes.c index ce81a322251c..ec60ed0d4aad 100644 --- a/arch/powerpc/kernel/optprobes.c +++ b/arch/powerpc/kernel/optprobes.c @@ -243,10 +243,10 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p) /* * 2. branch to optimized_callback() and emulate_step() */ - op_callback_addr = kprobe_lookup_name("optimized_callback", 0); - emulate_step_addr = kprobe_lookup_name("emulate_step", 0); + op_callback_addr = (kprobe_opcode_t *)ppc_kallsyms_lookup_name("optimized_callback"); + emulate_step_addr = (kprobe_opcode_t *)ppc_kallsyms_lookup_name("emulate_step"); if (!op_callback_addr || !emulate_step_addr) { - WARN(1, "kprobe_lookup_name() failed\n"); + WARN(1, "Unable to lookup optimized_callback()/emulate_step()\n"); goto error; } |
