diff options
author | James Bottomley <jejb@titanic.(none)> | 2005-05-20 16:27:44 -0400 |
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committer | James Bottomley <jejb@titanic.(none)> | 2005-05-20 16:27:44 -0400 |
commit | ad34ea2cc3845ef4dcd7d12fb0fa8484734bd672 (patch) | |
tree | ad434400f5ecaa33b433c8f830e40792d8d6c05c /arch/um/sys-ppc/ptrace.c | |
parent | 90356ac3194bf91a441a5f9c3067af386ef62462 (diff) | |
parent | 88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff) |
merge by hand - fix up rejections in Documentation/DocBook/Makefile
Diffstat (limited to 'arch/um/sys-ppc/ptrace.c')
-rw-r--r-- | arch/um/sys-ppc/ptrace.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/um/sys-ppc/ptrace.c b/arch/um/sys-ppc/ptrace.c index a971366d3277..8e71b47f2b8e 100644 --- a/arch/um/sys-ppc/ptrace.c +++ b/arch/um/sys-ppc/ptrace.c | |||
@@ -8,6 +8,25 @@ int putreg(struct task_struct *child, unsigned long regno, | |||
8 | return 0; | 8 | return 0; |
9 | } | 9 | } |
10 | 10 | ||
11 | int poke_user(struct task_struct *child, long addr, long data) | ||
12 | { | ||
13 | if ((addr & 3) || addr < 0) | ||
14 | return -EIO; | ||
15 | |||
16 | if (addr < MAX_REG_OFFSET) | ||
17 | return putreg(child, addr, data); | ||
18 | |||
19 | else if((addr >= offsetof(struct user, u_debugreg[0])) && | ||
20 | (addr <= offsetof(struct user, u_debugreg[7]))){ | ||
21 | addr -= offsetof(struct user, u_debugreg[0]); | ||
22 | addr = addr >> 2; | ||
23 | if((addr == 4) || (addr == 5)) return -EIO; | ||
24 | child->thread.arch.debugregs[addr] = data; | ||
25 | return 0; | ||
26 | } | ||
27 | return -EIO; | ||
28 | } | ||
29 | |||
11 | unsigned long getreg(struct task_struct *child, unsigned long regno) | 30 | unsigned long getreg(struct task_struct *child, unsigned long regno) |
12 | { | 31 | { |
13 | unsigned long retval = ~0UL; | 32 | unsigned long retval = ~0UL; |
@@ -16,6 +35,27 @@ unsigned long getreg(struct task_struct *child, unsigned long regno) | |||
16 | return retval; | 35 | return retval; |
17 | } | 36 | } |
18 | 37 | ||
38 | int peek_user(struct task_struct *child, long addr, long data) | ||
39 | { | ||
40 | /* read the word at location addr in the USER area. */ | ||
41 | unsigned long tmp; | ||
42 | |||
43 | if ((addr & 3) || addr < 0) | ||
44 | return -EIO; | ||
45 | |||
46 | tmp = 0; /* Default return condition */ | ||
47 | if(addr < MAX_REG_OFFSET){ | ||
48 | tmp = getreg(child, addr); | ||
49 | } | ||
50 | else if((addr >= offsetof(struct user, u_debugreg[0])) && | ||
51 | (addr <= offsetof(struct user, u_debugreg[7]))){ | ||
52 | addr -= offsetof(struct user, u_debugreg[0]); | ||
53 | addr = addr >> 2; | ||
54 | tmp = child->thread.arch.debugregs[addr]; | ||
55 | } | ||
56 | return put_user(tmp, (unsigned long *) data); | ||
57 | } | ||
58 | |||
19 | /* | 59 | /* |
20 | * Overrides for Emacs so that we follow Linus's tabbing style. | 60 | * Overrides for Emacs so that we follow Linus's tabbing style. |
21 | * Emacs will notice this stuff at the end of the file and automatically | 61 | * Emacs will notice this stuff at the end of the file and automatically |