diff options
author | James Bottomley <jejb@titanic.(none)> | 2005-05-20 15:27:44 -0500 |
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committer | James Bottomley <jejb@titanic.(none)> | 2005-05-20 15:27:44 -0500 |
commit | ad34ea2cc3845ef4dcd7d12fb0fa8484734bd672 (patch) | |
tree | ad434400f5ecaa33b433c8f830e40792d8d6c05c /arch/um/sys-i386/ptrace.c | |
parent | 90356ac3194bf91a441a5f9c3067af386ef62462 (diff) | |
parent | 88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff) |
merge by hand - fix up rejections in Documentation/DocBook/Makefile
Diffstat (limited to 'arch/um/sys-i386/ptrace.c')
-rw-r--r-- | arch/um/sys-i386/ptrace.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/um/sys-i386/ptrace.c b/arch/um/sys-i386/ptrace.c index e470d28cdf84..e839ce65ad28 100644 --- a/arch/um/sys-i386/ptrace.c +++ b/arch/um/sys-i386/ptrace.c @@ -73,6 +73,25 @@ int putreg(struct task_struct *child, int regno, unsigned long value) return 0; } +int poke_user(struct task_struct *child, long addr, long data) +{ + if ((addr & 3) || addr < 0) + return -EIO; + + if (addr < MAX_REG_OFFSET) + return putreg(child, addr, data); + + 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; + if((addr == 4) || (addr == 5)) return -EIO; + child->thread.arch.debugregs[addr] = data; + return 0; + } + return -EIO; +} + unsigned long getreg(struct task_struct *child, int regno) { unsigned long retval = ~0UL; @@ -93,6 +112,27 @@ unsigned long getreg(struct task_struct *child, int regno) return retval; } +int peek_user(struct task_struct *child, long addr, long data) +{ +/* read the word at location addr in the USER area. */ + unsigned long tmp; + + if ((addr & 3) || addr < 0) + return -EIO; + + tmp = 0; /* Default return condition */ + if(addr < MAX_REG_OFFSET){ + tmp = getreg(child, addr); + } + 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]; + } + return put_user(tmp, (unsigned long *) data); +} + struct i387_fxsave_struct { unsigned short cwd; unsigned short swd; |