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| author | Steven Whitehouse <swhiteho@redhat.com> | 2006-09-28 08:29:59 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-09-28 08:29:59 -0400 |
| commit | 185a257f2f73bcd89050ad02da5bedbc28fc43fa (patch) | |
| tree | 5e32586114534ed3f2165614cba3d578f5d87307 /arch/i386/kernel/ptrace.c | |
| parent | 3f1a9aaeffd8d1cbc5ab9776c45cbd66af1c9699 (diff) | |
| parent | a77c64c1a641950626181b4857abb701d8f38ccc (diff) | |
Merge branch 'master' into gfs2
Diffstat (limited to 'arch/i386/kernel/ptrace.c')
| -rw-r--r-- | arch/i386/kernel/ptrace.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c index d3db03f4085..775f50e9395 100644 --- a/arch/i386/kernel/ptrace.c +++ b/arch/i386/kernel/ptrace.c @@ -185,17 +185,17 @@ static unsigned long convert_eip_to_linear(struct task_struct *child, struct pt_ return addr; } -static inline int is_at_popf(struct task_struct *child, struct pt_regs *regs) +static inline int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) { int i, copied; - unsigned char opcode[16]; + unsigned char opcode[15]; unsigned long addr = convert_eip_to_linear(child, regs); copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); for (i = 0; i < copied; i++) { switch (opcode[i]) { - /* popf */ - case 0x9d: + /* popf and iret */ + case 0x9d: case 0xcf: return 1; /* opcode and address size prefixes */ case 0x66: case 0x67: @@ -247,7 +247,7 @@ static void set_singlestep(struct task_struct *child) * don't mark it as being "us" that set it, so that we * won't clear it by hand later. */ - if (is_at_popf(child, regs)) + if (is_setting_trap_flag(child, regs)) return; child->ptrace |= PT_DTRACE; |