diff options
| author | Anton Blanchard <anton@samba.org> | 2005-09-10 10:01:11 +0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-09-12 11:19:12 +0400 |
| commit | fd9648dff6f9797ecc509bcd181706a274dc074d (patch) | |
| tree | 845b99905dc4f54171d554c14e45b55f1cfe48e2 /include/asm-ppc64/ptrace-common.h | |
| parent | a94d308513bdb2b926b45c11d7ce7fac6d6ca865 (diff) | |
| download | linux-fd9648dff6f9797ecc509bcd181706a274dc074d.tar.xz | |
[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 'include/asm-ppc64/ptrace-common.h')
| -rw-r--r-- | include/asm-ppc64/ptrace-common.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/asm-ppc64/ptrace-common.h b/include/asm-ppc64/ptrace-common.h index bd0f84c27bd0..b1babb729673 100644 --- a/include/asm-ppc64/ptrace-common.h +++ b/include/asm-ppc64/ptrace-common.h @@ -13,6 +13,7 @@ #define _PPC64_PTRACE_COMMON_H #include <linux/config.h> +#include <asm/system.h> /* * Set of msr bits that gdb can change on behalf of a process. @@ -141,4 +142,23 @@ static inline int set_vrregs(struct task_struct *task, } #endif +static inline int ptrace_set_debugreg(struct task_struct *task, + unsigned long addr, unsigned long data) +{ + /* We only support one DABR and no IABRS at the moment */ + if (addr > 0) + return -EINVAL; + + /* The bottom 3 bits are flags */ + if ((data & ~0x7UL) >= TASK_SIZE) + return -EIO; + + /* Ensure translation is on */ + if (data && !(data & DABR_TRANSLATION)) + return -EIO; + + task->thread.dabr = data; + return 0; +} + #endif /* _PPC64_PTRACE_COMMON_H */ |