diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2016-04-15 11:31:51 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2016-04-15 11:42:51 +0200 |
| commit | 4d4fb97a62105c07dcccd350c391a65f576726c4 (patch) | |
| tree | 36f5ba480d7ea790b8cedf7e49bebab781659f73 /arch/powerpc/kernel/module_32.c | |
| parent | 61bf12d3304d78ff499245ea995858c3bedb162e (diff) | |
| parent | 85baa095497f3e590df9f6c8932121f123efca5c (diff) | |
Merge branch 'topic/livepatch' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux into for-4.7/livepatching-ppc64le
Pull livepatching support for ppc64 architecture from Michael Ellerman.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/powerpc/kernel/module_32.c')
| -rw-r--r-- | arch/powerpc/kernel/module_32.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c index 2c01665eb410..5a7a78f12562 100644 --- a/arch/powerpc/kernel/module_32.c +++ b/arch/powerpc/kernel/module_32.c @@ -181,7 +181,7 @@ static inline int entry_matches(struct ppc_plt_entry *entry, Elf32_Addr val) /* Set up a trampoline in the PLT to bounce us to the distant function */ static uint32_t do_plt_call(void *location, Elf32_Addr val, - Elf32_Shdr *sechdrs, + const Elf32_Shdr *sechdrs, struct module *mod) { struct ppc_plt_entry *entry; @@ -294,11 +294,19 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, return -ENOEXEC; } } + + return 0; +} + #ifdef CONFIG_DYNAMIC_FTRACE - module->arch.tramp = - do_plt_call(module->core_layout.base, - (unsigned long)ftrace_caller, - sechdrs, module); -#endif +int module_finalize_ftrace(struct module *module, const Elf_Shdr *sechdrs) +{ + module->arch.tramp = do_plt_call(module->core_layout.base, + (unsigned long)ftrace_caller, + sechdrs, module); + if (!module->arch.tramp) + return -ENOENT; + return 0; } +#endif |