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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/sys-x86_64/ptrace.c | |
| parent | f355559cf78455ed6be103b020e4b800230c64eb (diff) | |
| download | blackbird-op-linux-6e6d74cfac782a3a4cb5111bd9c25cd95d6b7c6c.tar.gz blackbird-op-linux-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/sys-x86_64/ptrace.c')
| -rw-r--r-- | arch/um/sys-x86_64/ptrace.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/um/sys-x86_64/ptrace.c b/arch/um/sys-x86_64/ptrace.c index 147bbf05cbc2..55b66e09a98c 100644 --- a/arch/um/sys-x86_64/ptrace.c +++ b/arch/um/sys-x86_64/ptrace.c @@ -71,8 +71,6 @@ int poke_user(struct task_struct *child, long addr, long data) if (addr < MAX_REG_OFFSET) return putreg(child, addr, data); - -#if 0 /* Need x86_64 debugregs handling */ else if((addr >= offsetof(struct user, u_debugreg[0])) && (addr <= offsetof(struct user, u_debugreg[7]))){ addr -= offsetof(struct user, u_debugreg[0]); @@ -81,7 +79,6 @@ int poke_user(struct task_struct *child, long addr, long data) child->thread.arch.debugregs[addr] = data; return 0; } -#endif return -EIO; } @@ -119,14 +116,12 @@ int peek_user(struct task_struct *child, long addr, long data) if(addr < MAX_REG_OFFSET){ tmp = getreg(child, addr); } -#if 0 /* Need x86_64 debugregs handling */ else if((addr >= offsetof(struct user, u_debugreg[0])) && (addr <= offsetof(struct user, u_debugreg[7]))){ addr -= offsetof(struct user, u_debugreg[0]); addr = addr >> 2; tmp = child->thread.arch.debugregs[addr]; } -#endif return put_user(tmp, (unsigned long *) data); } |
