diff options
Diffstat (limited to 'arch/um/kernel/ptrace.c')
| -rw-r--r-- | arch/um/kernel/ptrace.c | 50 |
1 files changed, 26 insertions, 24 deletions
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 3a99ee6d94e..3efa59a941a 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -98,12 +98,14 @@ long sys_ptrace(long request, long pid, long addr, long data) if(addr < MAX_REG_OFFSET){ tmp = getreg(child, addr); } +#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT) 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 ret = put_user(tmp, (unsigned long __user *) data); break; } @@ -127,7 +129,7 @@ long sys_ptrace(long request, long pid, long addr, long data) ret = putreg(child, addr, data); break; } -#if 0 /* XXX x86_64 */ +#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT) else if((addr >= offsetof(struct user, u_debugreg[0])) && (addr <= offsetof(struct user, u_debugreg[7]))){ addr -= offsetof(struct user, u_debugreg[0]); @@ -143,7 +145,7 @@ long sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; child->ptrace &= ~PT_DTRACE; @@ -179,7 +181,7 @@ long sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: { /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->ptrace |= PT_DTRACE; @@ -250,23 +252,19 @@ long sys_ptrace(long request, long pid, long addr, long data) break; #endif case PTRACE_FAULTINFO: { - struct ptrace_faultinfo fault; - - fault = ((struct ptrace_faultinfo) - { .is_write = child->thread.err, - .addr = child->thread.cr2 }); - ret = copy_to_user((unsigned long __user *) data, &fault, - sizeof(fault)); + /* Take the info from thread->arch->faultinfo, + * but transfer max. sizeof(struct ptrace_faultinfo). + * On i386, ptrace_faultinfo is smaller! + */ + ret = copy_to_user((unsigned long __user *) data, + &child->thread.arch.faultinfo, + sizeof(struct ptrace_faultinfo)); if(ret) break; break; } - case PTRACE_SIGPENDING: - ret = copy_to_user((unsigned long __user *) data, - &child->pending.signal, - sizeof(child->pending.signal)); - break; +#ifdef PTRACE_LDT case PTRACE_LDT: { struct ptrace_ldt ldt; @@ -282,6 +280,7 @@ long sys_ptrace(long request, long pid, long addr, long data) ret = -EIO; break; } +#endif #ifdef CONFIG_PROC_MM case PTRACE_SWITCH_MM: { struct mm_struct *old = child->mm; @@ -337,15 +336,18 @@ void syscall_trace(union uml_pt_regs *regs, int entryexit) if (unlikely(current->audit_context)) { if (!entryexit) - audit_syscall_entry(current, - UPT_SYSCALL_NR(®s->regs), - UPT_SYSCALL_ARG1(®s->regs), - UPT_SYSCALL_ARG2(®s->regs), - UPT_SYSCALL_ARG3(®s->regs), - UPT_SYSCALL_ARG4(®s->regs)); - else - audit_syscall_exit(current, - UPT_SYSCALL_RET(®s->regs)); + audit_syscall_entry(current, + HOST_AUDIT_ARCH, + UPT_SYSCALL_NR(regs), + UPT_SYSCALL_ARG1(regs), + UPT_SYSCALL_ARG2(regs), + UPT_SYSCALL_ARG3(regs), + UPT_SYSCALL_ARG4(regs)); + else { + int res = UPT_SYSCALL_RET(regs); + audit_syscall_exit(current, AUDITSC_RESULT(res), + res); + } } /* Fake a debug trap */ |