diff options
| author | Anton Blanchard <anton@samba.org> | 2005-09-10 16:01:11 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-09-12 17:19:12 +1000 |
| commit | fd9648dff6f9797ecc509bcd181706a274dc074d (patch) | |
| tree | 845b99905dc4f54171d554c14e45b55f1cfe48e2 /arch/ppc64/xmon | |
| parent | a94d308513bdb2b926b45c11d7ce7fac6d6ca865 (diff) | |
[PATCH] ppc64: Add ptrace data breakpoint support
Add hardware data breakpoint support.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64/xmon')
| -rw-r--r-- | arch/ppc64/xmon/privinst.h | 1 | ||||
| -rw-r--r-- | arch/ppc64/xmon/xmon.c | 20 |
2 files changed, 4 insertions, 17 deletions
diff --git a/arch/ppc64/xmon/privinst.h b/arch/ppc64/xmon/privinst.h index 183c3e400258..02eb40dac0b3 100644 --- a/arch/ppc64/xmon/privinst.h +++ b/arch/ppc64/xmon/privinst.h @@ -46,7 +46,6 @@ GSETSPR(287, pvr) GSETSPR(1008, hid0) GSETSPR(1009, hid1) GSETSPR(1010, iabr) -GSETSPR(1013, dabr) GSETSPR(1023, pir) static inline void store_inst(void *p) diff --git a/arch/ppc64/xmon/xmon.c b/arch/ppc64/xmon/xmon.c index 45908b10acd3..74e63a886a69 100644 --- a/arch/ppc64/xmon/xmon.c +++ b/arch/ppc64/xmon/xmon.c @@ -586,6 +586,8 @@ int xmon_dabr_match(struct pt_regs *regs) { if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF)) return 0; + if (dabr.enabled == 0) + return 0; xmon_core(regs, 0); return 1; } @@ -628,20 +630,6 @@ int xmon_fault_handler(struct pt_regs *regs) return 0; } -/* On systems with a hypervisor, we can't set the DABR - (data address breakpoint register) directly. */ -static void set_controlled_dabr(unsigned long val) -{ -#ifdef CONFIG_PPC_PSERIES - if (systemcfg->platform == PLATFORM_PSERIES_LPAR) { - int rc = plpar_hcall_norets(H_SET_DABR, val); - if (rc != H_Success) - xmon_printf("Warning: setting DABR failed (%d)\n", rc); - } else -#endif - set_dabr(val); -} - static struct bpt *at_breakpoint(unsigned long pc) { int i; @@ -728,7 +716,7 @@ static void insert_bpts(void) static void insert_cpu_bpts(void) { if (dabr.enabled) - set_controlled_dabr(dabr.address | (dabr.enabled & 7)); + set_dabr(dabr.address | (dabr.enabled & 7)); if (iabr && cpu_has_feature(CPU_FTR_IABR)) set_iabr(iabr->address | (iabr->enabled & (BP_IABR|BP_IABR_TE))); @@ -756,7 +744,7 @@ static void remove_bpts(void) static void remove_cpu_bpts(void) { - set_controlled_dabr(0); + set_dabr(0); if (cpu_has_feature(CPU_FTR_IABR)) set_iabr(0); } |