diff options
| author | Robert Jennings <rcjenn@austin.ibm.com> | 2005-09-10 16:01:07 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-09-12 17:19:11 +1000 |
| commit | 962bca7f389229a30ced441d7b37f55f203006a2 (patch) | |
| tree | 9824ae5b923a477fb4a671eda60822f80610861e /arch/ppc64/kernel | |
| parent | 4267292b0f368c1633ff3316a53b5f7fbada95f8 (diff) | |
[PATCH] ppc64: Add PTRACE_{GET|SET}VRREGS
The ptrace get and set methods for VMX/Altivec registers present in the
ppc tree were missing for ppc64. This patch adds the 32-bit and
64-bit methods. Updated with the suggestions from Anton following the lines
of his code snippet.
Added:
- flush_altivec_to_thread calls as suggested by Anton
- piecewise copy of structure to preserve 32-bit vrsave data as per
Anton
(I consolidated the 32 and 64bit versions with 2 helper macros - Anton)
Signed-off-by: Robert C Jennings <rcjenn@austin.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64/kernel')
| -rw-r--r-- | arch/ppc64/kernel/ptrace.c | 15 | ||||
| -rw-r--r-- | arch/ppc64/kernel/ptrace32.c | 15 |
2 files changed, 30 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c index 2993f108d96..bf7116d4c4c 100644 --- a/arch/ppc64/kernel/ptrace.c +++ b/arch/ppc64/kernel/ptrace.c @@ -17,6 +17,7 @@ * this archive for more details. */ +#include <linux/config.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> @@ -274,6 +275,20 @@ int sys_ptrace(long request, long pid, long addr, long data) break; } +#ifdef CONFIG_ALTIVEC + case PTRACE_GETVRREGS: + /* Get the child altivec register state. */ + flush_altivec_to_thread(child); + ret = get_vrregs((unsigned long __user *)data, child); + break; + + case PTRACE_SETVRREGS: + /* Set the child altivec register state. */ + flush_altivec_to_thread(child); + ret = set_vrregs(child, (unsigned long __user *)data); + break; +#endif + default: ret = ptrace_request(child, request, addr, data); break; diff --git a/arch/ppc64/kernel/ptrace32.c b/arch/ppc64/kernel/ptrace32.c index 16436426c7e..4d1568c946c 100644 --- a/arch/ppc64/kernel/ptrace32.c +++ b/arch/ppc64/kernel/ptrace32.c @@ -17,6 +17,7 @@ * this archive for more details. */ +#include <linux/config.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> @@ -409,6 +410,20 @@ int sys32_ptrace(long request, long pid, unsigned long addr, unsigned long data) ret = put_user(child->ptrace_message, (unsigned int __user *) data); break; +#ifdef CONFIG_ALTIVEC + case PTRACE_GETVRREGS: + /* Get the child altivec register state. */ + flush_altivec_to_thread(child); + ret = get_vrregs((unsigned long __user *)data, child); + break; + + case PTRACE_SETVRREGS: + /* Set the child altivec register state. */ + flush_altivec_to_thread(child); + ret = set_vrregs(child, (unsigned long __user *)data); + break; +#endif + default: ret = ptrace_request(child, request, addr, data); break; |