diff options
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/restart_table.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/powerpc/lib/restart_table.c b/arch/powerpc/lib/restart_table.c index 7cd20757cc33..bccb662c1b7b 100644 --- a/arch/powerpc/lib/restart_table.c +++ b/arch/powerpc/lib/restart_table.c @@ -1,15 +1,41 @@ #include <asm/interrupt.h> #include <asm/kprobes.h> +struct soft_mask_table_entry { + unsigned long start; + unsigned long end; +}; + struct restart_table_entry { unsigned long start; unsigned long end; unsigned long fixup; }; +extern struct soft_mask_table_entry __start___soft_mask_table[]; +extern struct soft_mask_table_entry __stop___soft_mask_table[]; + extern struct restart_table_entry __start___restart_table[]; extern struct restart_table_entry __stop___restart_table[]; +/* Given an address, look for it in the soft mask table */ +bool search_kernel_soft_mask_table(unsigned long addr) +{ + struct soft_mask_table_entry *smte = __start___soft_mask_table; + + while (smte < __stop___soft_mask_table) { + unsigned long start = smte->start; + unsigned long end = smte->end; + + if (addr >= start && addr < end) + return true; + + smte++; + } + return false; +} +NOKPROBE_SYMBOL(search_kernel_soft_mask_table); + /* Given an address, look for it in the kernel exception table */ unsigned long search_kernel_restart_table(unsigned long addr) { |