diff options
| author | Balbir Singh <bsingharora@gmail.com> | 2017-06-27 09:48:58 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-03 15:12:19 +0200 |
| commit | efe4fbb1ac3a6489c1dc7d31b51ecb7425807b1b (patch) | |
| tree | aafd7b38708bf1c61c6de1bb87a62335231098be /arch/powerpc | |
| parent | powerpc/kprobes/optprobes: Use patch_instruction() (diff) | |
| download | linux-efe4fbb1ac3a6489c1dc7d31b51ecb7425807b1b.tar.xz linux-efe4fbb1ac3a6489c1dc7d31b51ecb7425807b1b.zip | |
powerpc/xmon: Add patch_instruction() support for xmon
Move from mwrite() to patch_instruction() for xmon for
breakpoint addition and removal.
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index a728e1919613..08e367e3e8c3 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -53,6 +53,7 @@ #include <asm/xive.h> #include <asm/opal.h> #include <asm/firmware.h> +#include <asm/code-patching.h> #ifdef CONFIG_PPC64 #include <asm/hvcall.h> @@ -837,7 +838,8 @@ static void insert_bpts(void) store_inst(&bp->instr[0]); if (bp->enabled & BP_CIABR) continue; - if (mwrite(bp->address, &bpinstr, 4) != 4) { + if (patch_instruction((unsigned int *)bp->address, + bpinstr) != 0) { printf("Couldn't write instruction at %lx, " "disabling breakpoint there\n", bp->address); bp->enabled &= ~BP_TRAP; @@ -874,7 +876,8 @@ static void remove_bpts(void) continue; if (mread(bp->address, &instr, 4) == 4 && instr == bpinstr - && mwrite(bp->address, &bp->instr, 4) != 4) + && patch_instruction( + (unsigned int *)bp->address, bp->instr[0]) != 0) printf("Couldn't remove breakpoint at %lx\n", bp->address); else |