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| author |   Jeff Dike <jdike@addtoit.com> | 2007-02-10 01:44:30 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-11 10:51:24 -0800 |
| commit | 6e6d74cfac782a3a4cb5111bd9c25cd95d6b7c6c (patch) | |
| tree | f63c0433740168f56916ece27793e9b69a40e072 /arch/um/kernel/ptrace.c | |
| parent | [PATCH] uml: x86_64 thread fixes (diff) | |
| download | linux-dev-6e6d74cfac782a3a4cb5111bd9c25cd95d6b7c6c.tar.xz linux-dev-6e6d74cfac782a3a4cb5111bd9c25cd95d6b7c6c.zip | |
[PATCH] uml: x86_64 ptrace fixes
This patch fixes some missing ptrace bits on x86_64. PTRACE_ARCH_PRCTL is
hooked up and implemented. This required generalizing arch_prctl_skas
slightly to take a task_struct to modify. Previously, it always operated on
current.
Reading and writing the debug registers is also enabled by un-ifdefing the
code that implements that. It turns out that x86_64 is identical to i386, so
the same code can be used.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/kernel/ptrace.c')
| -rw-r--r-- | arch/um/kernel/ptrace.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 9a77fb3c269d..627742d89434 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -18,6 +18,7 @@ #include "kern_util.h" #include "skas_ptrace.h" #include "sysdep/ptrace.h" +#include "os.h" static inline void set_singlestepping(struct task_struct *child, int on) { @@ -241,6 +242,12 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; } #endif +#ifdef PTRACE_ARCH_PRCTL + case PTRACE_ARCH_PRCTL: + /* XXX Calls ptrace on the host - needs some SMP thinking */ + ret = arch_prctl_skas(child, data, (void *) addr); + break; +#endif default: ret = ptrace_request(child, request, addr, data); break; |