diff options
Diffstat (limited to 'arch/um/kernel/tt/ptproxy')
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/Makefile | 10 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/proxy.c | 377 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/ptproxy.h | 61 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/ptrace.c | 237 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/sysdep.c | 70 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/sysdep.h | 25 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/wait.c | 85 | ||||
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/wait.h | 15 |
8 files changed, 0 insertions, 880 deletions
diff --git a/arch/um/kernel/tt/ptproxy/Makefile b/arch/um/kernel/tt/ptproxy/Makefile deleted file mode 100644 index 3ad5b774de59..000000000000 --- a/arch/um/kernel/tt/ptproxy/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Copyright (C) 2002 Jeff Dike (jdike@karaya.com) -# Licensed under the GPL -# - -obj-y = proxy.o ptrace.o sysdep.o wait.o - -USER_OBJS := $(obj-y) - -include arch/um/scripts/Makefile.rules diff --git a/arch/um/kernel/tt/ptproxy/proxy.c b/arch/um/kernel/tt/ptproxy/proxy.c deleted file mode 100644 index 420c23f311f3..000000000000 --- a/arch/um/kernel/tt/ptproxy/proxy.c +++ /dev/null @@ -1,377 +0,0 @@ -/********************************************************************** -proxy.c - -Copyright (C) 1999 Lars Brinkhoff. See the file COPYING for licensing -terms and conditions. - -Jeff Dike (jdike@karaya.com) : Modified for integration into uml -**********************************************************************/ - -/* XXX This file shouldn't refer to CONFIG_* */ - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <signal.h> -#include <string.h> -#include <termios.h> -#include <sys/wait.h> -#include <sys/types.h> -#include <sys/ioctl.h> -#include <asm/unistd.h> -#include "ptrace_user.h" - -#include "ptproxy.h" -#include "sysdep.h" -#include "wait.h" - -#include "user.h" -#include "os.h" -#include "tempfile.h" - -static int debugger_wait(debugger_state *debugger, int *status, int options, - int (*syscall)(debugger_state *debugger, pid_t child), - int (*normal_return)(debugger_state *debugger, - pid_t unused), - int (*wait_return)(debugger_state *debugger, - pid_t unused)) -{ - if(debugger->real_wait){ - debugger->handle_trace = normal_return; - syscall_continue(debugger->pid); - debugger->real_wait = 0; - return(1); - } - debugger->wait_status_ptr = status; - debugger->wait_options = options; - if((debugger->debugee != NULL) && debugger->debugee->event){ - syscall_continue(debugger->pid); - wait_for_stop(debugger->pid, SIGTRAP, PTRACE_SYSCALL, - NULL); - (*wait_return)(debugger, -1); - return(0); - } - else if(debugger->wait_options & WNOHANG){ - syscall_cancel(debugger->pid, 0); - debugger->handle_trace = syscall; - return(0); - } - else { - syscall_pause(debugger->pid); - debugger->handle_trace = wait_return; - debugger->waiting = 1; - } - return(1); -} - -/* - * Handle debugger trap, i.e. syscall. - */ - -int debugger_syscall(debugger_state *debugger, pid_t child) -{ - long arg1, arg2, arg3, arg4, arg5, result; - int syscall, ret = 0; - - syscall = get_syscall(debugger->pid, &arg1, &arg2, &arg3, &arg4, - &arg5); - - switch(syscall){ - case __NR_execve: - /* execve never returns */ - debugger->handle_trace = debugger_syscall; - break; - - case __NR_ptrace: - if(debugger->debugee->pid != 0) arg2 = debugger->debugee->pid; - if(!debugger->debugee->in_context) - child = debugger->debugee->pid; - result = proxy_ptrace(debugger, arg1, arg2, arg3, arg4, child, - &ret); - syscall_cancel(debugger->pid, result); - debugger->handle_trace = debugger_syscall; - return(ret); - -#ifdef __NR_waitpid - case __NR_waitpid: -#endif - case __NR_wait4: - if(!debugger_wait(debugger, (int *) arg2, arg3, - debugger_syscall, debugger_normal_return, - proxy_wait_return)) - return(0); - break; - - case __NR_kill: - if(!debugger->debugee->in_context) - child = debugger->debugee->pid; - if(arg1 == debugger->debugee->pid){ - result = kill(child, arg2); - syscall_cancel(debugger->pid, result); - debugger->handle_trace = debugger_syscall; - return(0); - } - else debugger->handle_trace = debugger_normal_return; - break; - - default: - debugger->handle_trace = debugger_normal_return; - } - - syscall_continue(debugger->pid); - return(0); -} - -/* Used by the tracing thread */ -static debugger_state parent; -static int parent_syscall(debugger_state *debugger, int pid); - -int init_parent_proxy(int pid) -{ - parent = ((debugger_state) { .pid = pid, - .wait_options = 0, - .wait_status_ptr = NULL, - .waiting = 0, - .real_wait = 0, - .expecting_child = 0, - .handle_trace = parent_syscall, - .debugee = NULL } ); - return(0); -} - -int parent_normal_return(debugger_state *debugger, pid_t unused) -{ - debugger->handle_trace = parent_syscall; - syscall_continue(debugger->pid); - return(0); -} - -static int parent_syscall(debugger_state *debugger, int pid) -{ - long arg1, arg2, arg3, arg4, arg5; - int syscall; - - syscall = get_syscall(pid, &arg1, &arg2, &arg3, &arg4, &arg5); - - if((syscall == __NR_wait4) -#ifdef __NR_waitpid - || (syscall == __NR_waitpid) -#endif - ){ - debugger_wait(&parent, (int *) arg2, arg3, parent_syscall, - parent_normal_return, parent_wait_return); - } - else ptrace(PTRACE_SYSCALL, pid, 0, 0); - return(0); -} - -int debugger_normal_return(debugger_state *debugger, pid_t unused) -{ - debugger->handle_trace = debugger_syscall; - syscall_continue(debugger->pid); - return(0); -} - -void debugger_cancelled_return(debugger_state *debugger, int result) -{ - debugger->handle_trace = debugger_syscall; - syscall_set_result(debugger->pid, result); - syscall_continue(debugger->pid); -} - -/* Used by the tracing thread */ -static debugger_state debugger; -static debugee_state debugee; - -void init_proxy (pid_t debugger_pid, int stopped, int status) -{ - debugger.pid = debugger_pid; - debugger.handle_trace = debugger_syscall; - debugger.debugee = &debugee; - debugger.waiting = 0; - debugger.real_wait = 0; - debugger.expecting_child = 0; - - debugee.pid = 0; - debugee.traced = 0; - debugee.stopped = stopped; - debugee.event = 0; - debugee.zombie = 0; - debugee.died = 0; - debugee.wait_status = status; - debugee.in_context = 1; -} - -int debugger_proxy(int status, int pid) -{ - int ret = 0, sig; - - if(WIFSTOPPED(status)){ - sig = WSTOPSIG(status); - if (sig == SIGTRAP) - ret = (*debugger.handle_trace)(&debugger, pid); - - else if(sig == SIGCHLD){ - if(debugger.expecting_child){ - ptrace(PTRACE_SYSCALL, debugger.pid, 0, sig); - debugger.expecting_child = 0; - } - else if(debugger.waiting) - real_wait_return(&debugger); - else { - ptrace(PTRACE_SYSCALL, debugger.pid, 0, sig); - debugger.real_wait = 1; - } - } - else ptrace(PTRACE_SYSCALL, debugger.pid, 0, sig); - } - else if(WIFEXITED(status)){ - tracer_panic("debugger (pid %d) exited with status %d", - debugger.pid, WEXITSTATUS(status)); - } - else if(WIFSIGNALED(status)){ - tracer_panic("debugger (pid %d) exited with signal %d", - debugger.pid, WTERMSIG(status)); - } - else { - tracer_panic("proxy got unknown status (0x%x) on debugger " - "(pid %d)", status, debugger.pid); - } - return(ret); -} - -void child_proxy(pid_t pid, int status) -{ - debugee.event = 1; - debugee.wait_status = status; - - if(WIFSTOPPED(status)){ - debugee.stopped = 1; - debugger.expecting_child = 1; - kill(debugger.pid, SIGCHLD); - } - else if(WIFEXITED(status) || WIFSIGNALED(status)){ - debugee.zombie = 1; - debugger.expecting_child = 1; - kill(debugger.pid, SIGCHLD); - } - else panic("proxy got unknown status (0x%x) on child (pid %d)", - status, pid); -} - -void debugger_parent_signal(int status, int pid) -{ - int sig; - - if(WIFSTOPPED(status)){ - sig = WSTOPSIG(status); - if(sig == SIGTRAP) (*parent.handle_trace)(&parent, pid); - else ptrace(PTRACE_SYSCALL, pid, 0, sig); - } -} - -void fake_child_exit(void) -{ - int status, pid; - - child_proxy(1, W_EXITCODE(0, 0)); - while(debugger.waiting == 1){ - CATCH_EINTR(pid = waitpid(debugger.pid, &status, WUNTRACED)); - if(pid != debugger.pid){ - printk("fake_child_exit - waitpid failed, " - "errno = %d\n", errno); - return; - } - debugger_proxy(status, debugger.pid); - } - CATCH_EINTR(pid = waitpid(debugger.pid, &status, WUNTRACED)); - if(pid != debugger.pid){ - printk("fake_child_exit - waitpid failed, " - "errno = %d\n", errno); - return; - } - if(ptrace(PTRACE_DETACH, debugger.pid, 0, SIGCONT) < 0) - printk("fake_child_exit - PTRACE_DETACH failed, errno = %d\n", - errno); -} - -char gdb_init_string[] = -"att 1 \n\ -b panic \n\ -b stop \n\ -handle SIGWINCH nostop noprint pass \n\ -"; - -int start_debugger(char *prog, int startup, int stop, int *fd_out) -{ - int slave, child; - - slave = open_gdb_chan(); - child = fork(); - if(child == 0){ - char *tempname = NULL; - int fd; - - if(setsid() < 0) perror("setsid"); - if((dup2(slave, 0) < 0) || (dup2(slave, 1) < 0) || - (dup2(slave, 2) < 0)){ - printk("start_debugger : dup2 failed, errno = %d\n", - errno); - exit(1); - } - if(ioctl(0, TIOCSCTTY, 0) < 0){ - printk("start_debugger : TIOCSCTTY failed, " - "errno = %d\n", errno); - exit(1); - } - if(tcsetpgrp (1, os_getpid()) < 0){ - printk("start_debugger : tcsetpgrp failed, " - "errno = %d\n", errno); -#ifdef notdef - exit(1); -#endif - } - fd = make_tempfile("/tmp/gdb_init-XXXXXX", &tempname, 0); - if(fd < 0){ - printk("start_debugger : make_tempfile failed," - "err = %d\n", -fd); - exit(1); - } - os_write_file(fd, gdb_init_string, - sizeof(gdb_init_string) - 1); - if(startup){ - if(stop){ - os_write_file(fd, "b start_kernel\n", - strlen("b start_kernel\n")); - } - os_write_file(fd, "c\n", strlen("c\n")); - } - if(ptrace(PTRACE_TRACEME, 0, 0, 0) < 0){ - printk("start_debugger : PTRACE_TRACEME failed, " - "errno = %d\n", errno); - exit(1); - } - execlp("gdb", "gdb", "--command", tempname, prog, NULL); - printk("start_debugger : exec of gdb failed, errno = %d\n", - errno); - } - if(child < 0){ - printk("start_debugger : fork for gdb failed, errno = %d\n", - errno); - return(-1); - } - *fd_out = slave; - return(child); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/ptproxy/ptproxy.h b/arch/um/kernel/tt/ptproxy/ptproxy.h deleted file mode 100644 index 5eb0285b1968..000000000000 --- a/arch/um/kernel/tt/ptproxy/ptproxy.h +++ /dev/null @@ -1,61 +0,0 @@ -/********************************************************************** -ptproxy.h - -Copyright (C) 1999 Lars Brinkhoff. See the file COPYING for licensing -terms and conditions. -**********************************************************************/ - -#ifndef __PTPROXY_H -#define __PTPROXY_H - -#include <sys/types.h> - -typedef struct debugger debugger_state; -typedef struct debugee debugee_state; - -struct debugger -{ - pid_t pid; - int wait_options; - int *wait_status_ptr; - unsigned int waiting : 1; - unsigned int real_wait : 1; - unsigned int expecting_child : 1; - int (*handle_trace) (debugger_state *, pid_t); - - debugee_state *debugee; -}; - -struct debugee -{ - pid_t pid; - int wait_status; - unsigned int died : 1; - unsigned int event : 1; - unsigned int stopped : 1; - unsigned int trace_singlestep : 1; - unsigned int trace_syscall : 1; - unsigned int traced : 1; - unsigned int zombie : 1; - unsigned int in_context : 1; -}; - -extern int debugger_syscall(debugger_state *debugger, pid_t pid); -extern int debugger_normal_return (debugger_state *debugger, pid_t unused); - -extern long proxy_ptrace (struct debugger *, int, pid_t, long, long, pid_t, - int *strace_out); -extern void debugger_cancelled_return(debugger_state *debugger, int result); - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/ptproxy/ptrace.c b/arch/um/kernel/tt/ptproxy/ptrace.c deleted file mode 100644 index 4b4f6179b212..000000000000 --- a/arch/um/kernel/tt/ptproxy/ptrace.c +++ /dev/null @@ -1,237 +0,0 @@ -/********************************************************************** -ptrace.c - -Copyright (C) 1999 Lars Brinkhoff. See the file COPYING for licensing -terms and conditions. - -Jeff Dike (jdike@karaya.com) : Modified for integration into uml -**********************************************************************/ - -#include <errno.h> -#include <unistd.h> -#include <signal.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/wait.h> - -#include "ptproxy.h" -#include "debug.h" -#include "kern_util.h" -#include "ptrace_user.h" -#include "tt.h" -#include "os.h" - -long proxy_ptrace(struct debugger *debugger, int arg1, pid_t arg2, - long arg3, long arg4, pid_t child, int *ret) -{ - sigset_t relay; - long result; - int status; - - *ret = 0; - if(debugger->debugee->died) return(-ESRCH); - - switch(arg1){ - case PTRACE_ATTACH: - if(debugger->debugee->traced) return(-EPERM); - - debugger->debugee->pid = arg2; - debugger->debugee->traced = 1; - - if(is_valid_pid(arg2) && (arg2 != child)){ - debugger->debugee->in_context = 0; - kill(arg2, SIGSTOP); - debugger->debugee->event = 1; - debugger->debugee->wait_status = W_STOPCODE(SIGSTOP); - } - else { - debugger->debugee->in_context = 1; - if(debugger->debugee->stopped) - child_proxy(child, W_STOPCODE(SIGSTOP)); - else kill(child, SIGSTOP); - } - - return(0); - - case PTRACE_DETACH: - if(!debugger->debugee->traced) return(-EPERM); - - debugger->debugee->traced = 0; - debugger->debugee->pid = 0; - if(!debugger->debugee->in_context) - kill(child, SIGCONT); - - return(0); - - case PTRACE_CONT: - if(!debugger->debugee->in_context) return(-EPERM); - *ret = PTRACE_CONT; - return(ptrace(PTRACE_CONT, child, arg3, arg4)); - -#ifdef UM_HAVE_GETFPREGS - case PTRACE_GETFPREGS: - { - long regs[FP_FRAME_SIZE]; - int i, result; - - result = ptrace(PTRACE_GETFPREGS, child, 0, regs); - if(result == -1) return(-errno); - - for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) - ptrace(PTRACE_POKEDATA, debugger->pid, arg4 + 4 * i, - regs[i]); - return(result); - } -#endif - -#ifdef UM_HAVE_GETFPXREGS - case PTRACE_GETFPXREGS: - { - long regs[FPX_FRAME_SIZE]; - int i, result; - - result = ptrace(PTRACE_GETFPXREGS, child, 0, regs); - if(result == -1) return(-errno); - - for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) - ptrace(PTRACE_POKEDATA, debugger->pid, arg4 + 4 * i, - regs[i]); - return(result); - } -#endif - -#ifdef UM_HAVE_GETREGS - case PTRACE_GETREGS: - { - long regs[FRAME_SIZE]; - int i, result; - - result = ptrace(PTRACE_GETREGS, child, 0, regs); - if(result == -1) return(-errno); - - for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) - ptrace (PTRACE_POKEDATA, debugger->pid, - arg4 + 4 * i, regs[i]); - return(result); - } - break; -#endif - - case PTRACE_KILL: - result = ptrace(PTRACE_KILL, child, arg3, arg4); - if(result == -1) return(-errno); - - return(result); - - case PTRACE_PEEKDATA: - case PTRACE_PEEKTEXT: - case PTRACE_PEEKUSR: - /* The value being read out could be -1, so we have to - * check errno to see if there's an error, and zero it - * beforehand so we're not faked out by an old error - */ - - errno = 0; - result = ptrace(arg1, child, arg3, 0); - if((result == -1) && (errno != 0)) return(-errno); - - result = ptrace(PTRACE_POKEDATA, debugger->pid, arg4, result); - if(result == -1) return(-errno); - - return(result); - - case PTRACE_POKEDATA: - case PTRACE_POKETEXT: - case PTRACE_POKEUSR: - result = ptrace(arg1, child, arg3, arg4); - if(result == -1) return(-errno); - - if(arg1 == PTRACE_POKEUSR) ptrace_pokeuser(arg3, arg4); - return(result); - -#ifdef UM_HAVE_SETFPREGS - case PTRACE_SETFPREGS: - { - long regs[FP_FRAME_SIZE]; - int i; - - for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) - regs[i] = ptrace (PTRACE_PEEKDATA, debugger->pid, - arg4 + 4 * i, 0); - result = ptrace(PTRACE_SETFPREGS, child, 0, regs); - if(result == -1) return(-errno); - - return(result); - } -#endif - -#ifdef UM_HAVE_SETFPXREGS - case PTRACE_SETFPXREGS: - { - long regs[FPX_FRAME_SIZE]; - int i; - - for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) - regs[i] = ptrace (PTRACE_PEEKDATA, debugger->pid, - arg4 + 4 * i, 0); - result = ptrace(PTRACE_SETFPXREGS, child, 0, regs); - if(result == -1) return(-errno); - - return(result); - } -#endif - -#ifdef UM_HAVE_SETREGS - case PTRACE_SETREGS: - { - long regs[FRAME_SIZE]; - int i; - - for (i = 0; i < sizeof(regs)/sizeof(regs[0]); i++) - regs[i] = ptrace(PTRACE_PEEKDATA, debugger->pid, - arg4 + 4 * i, 0); - result = ptrace(PTRACE_SETREGS, child, 0, regs); - if(result == -1) return(-errno); - - return(result); - } -#endif - - case PTRACE_SINGLESTEP: - if(!debugger->debugee->in_context) return(-EPERM); - sigemptyset(&relay); - sigaddset(&relay, SIGSEGV); - sigaddset(&relay, SIGILL); - sigaddset(&relay, SIGBUS); - result = ptrace(PTRACE_SINGLESTEP, child, arg3, arg4); - if(result == -1) return(-errno); - - status = wait_for_stop(child, SIGTRAP, PTRACE_SINGLESTEP, - &relay); - child_proxy(child, status); - return(result); - - case PTRACE_SYSCALL: - if(!debugger->debugee->in_context) return(-EPERM); - result = ptrace(PTRACE_SYSCALL, child, arg3, arg4); - if(result == -1) return(-errno); - - *ret = PTRACE_SYSCALL; - return(result); - - case PTRACE_TRACEME: - default: - return(-EINVAL); - } -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/ptproxy/sysdep.c b/arch/um/kernel/tt/ptproxy/sysdep.c deleted file mode 100644 index e0e1ab0588ad..000000000000 --- a/arch/um/kernel/tt/ptproxy/sysdep.c +++ /dev/null @@ -1,70 +0,0 @@ -/********************************************************************** -sysdep.c - -Copyright (C) 1999 Lars Brinkhoff. See the file COPYING for licensing -terms and conditions. -**********************************************************************/ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <signal.h> -#include <errno.h> -#include <sys/types.h> -#include <linux/unistd.h> -#include "ptrace_user.h" -#include "user.h" -#include "os.h" - -int get_syscall(pid_t pid, long *arg1, long *arg2, long *arg3, long *arg4, - long *arg5) -{ - *arg1 = ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_ARG1_OFFSET, 0); - *arg2 = ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_ARG2_OFFSET, 0); - *arg3 = ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_ARG3_OFFSET, 0); - *arg4 = ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_ARG4_OFFSET, 0); - *arg5 = ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_ARG5_OFFSET, 0); - return(ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_NR_OFFSET, 0)); -} - -void syscall_cancel(pid_t pid, int result) -{ - if((ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET, - __NR_getpid) < 0) || - (ptrace(PTRACE_SYSCALL, pid, 0, 0) < 0) || - (wait_for_stop(pid, SIGTRAP, PTRACE_SYSCALL, NULL) < 0) || - (ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_RET_OFFSET, result) < 0) || - (ptrace(PTRACE_SYSCALL, pid, 0, 0) < 0)) - printk("ptproxy: couldn't cancel syscall: errno = %d\n", - errno); -} - -void syscall_set_result(pid_t pid, long result) -{ - ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_RET_OFFSET, result); -} - -void syscall_continue(pid_t pid) -{ - ptrace(PTRACE_SYSCALL, pid, 0, 0); -} - -int syscall_pause(pid_t pid) -{ - if(ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET, __NR_pause) < 0){ - printk("syscall_change - ptrace failed, errno = %d\n", errno); - return(-1); - } - return(0); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/ptproxy/sysdep.h b/arch/um/kernel/tt/ptproxy/sysdep.h deleted file mode 100644 index 735f488049aa..000000000000 --- a/arch/um/kernel/tt/ptproxy/sysdep.h +++ /dev/null @@ -1,25 +0,0 @@ -/********************************************************************** -sysdep.h - -Copyright (C) 1999 Lars Brinkhoff. -Copyright (C) 2001 Jeff Dike (jdike@karaya.com) -See the file COPYING for licensing terms and conditions. -**********************************************************************/ - -extern int get_syscall(pid_t pid, long *arg1, long *arg2, long *arg3, - long *arg4, long *arg5); -extern void syscall_cancel (pid_t pid, long result); -extern void syscall_set_result (pid_t pid, long result); -extern void syscall_continue (pid_t pid); -extern int syscall_pause(pid_t pid); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/ptproxy/wait.c b/arch/um/kernel/tt/ptproxy/wait.c deleted file mode 100644 index bdd4af4b65fc..000000000000 --- a/arch/um/kernel/tt/ptproxy/wait.c +++ /dev/null @@ -1,85 +0,0 @@ -/********************************************************************** -wait.c - -Copyright (C) 1999 Lars Brinkhoff. See the file COPYING for licensing -terms and conditions. - -**********************************************************************/ - -#include <errno.h> -#include <signal.h> -#include <sys/wait.h> - -#include "ptproxy.h" -#include "sysdep.h" -#include "wait.h" -#include "ptrace_user.h" -#include "sysdep/ptrace.h" -#include "sysdep/sigcontext.h" - -int proxy_wait_return(struct debugger *debugger, pid_t unused) -{ - debugger->waiting = 0; - - if(debugger->debugee->died || (debugger->wait_options & __WCLONE)){ - debugger_cancelled_return(debugger, -ECHILD); - return(0); - } - - if(debugger->debugee->zombie && debugger->debugee->event) - debugger->debugee->died = 1; - - if(debugger->debugee->event){ - debugger->debugee->event = 0; - ptrace(PTRACE_POKEDATA, debugger->pid, - debugger->wait_status_ptr, - debugger->debugee->wait_status); - /* if (wait4) - ptrace (PTRACE_POKEDATA, pid, rusage_ptr, ...); */ - debugger_cancelled_return(debugger, debugger->debugee->pid); - return(0); - } - - /* pause will return -EINTR, which happens to be right for wait */ - debugger_normal_return(debugger, -1); - return(0); -} - -int parent_wait_return(struct debugger *debugger, pid_t unused) -{ - return(debugger_normal_return(debugger, -1)); -} - -int real_wait_return(struct debugger *debugger) -{ - unsigned long ip; - int pid; - - pid = debugger->pid; - - ip = ptrace(PTRACE_PEEKUSR, pid, PT_IP_OFFSET, 0); - IP_RESTART_SYSCALL(ip); - - if(ptrace(PTRACE_POKEUSR, pid, PT_IP_OFFSET, ip) < 0) - tracer_panic("real_wait_return : Failed to restart system " - "call, errno = %d\n", errno); - - if((ptrace(PTRACE_SYSCALL, debugger->pid, 0, SIGCHLD) < 0) || - (ptrace(PTRACE_SYSCALL, debugger->pid, 0, 0) < 0) || - (ptrace(PTRACE_SYSCALL, debugger->pid, 0, 0) < 0) || - debugger_normal_return(debugger, -1)) - tracer_panic("real_wait_return : gdb failed to wait, " - "errno = %d\n", errno); - return(0); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/ptproxy/wait.h b/arch/um/kernel/tt/ptproxy/wait.h deleted file mode 100644 index 542e73ee2cee..000000000000 --- a/arch/um/kernel/tt/ptproxy/wait.h +++ /dev/null @@ -1,15 +0,0 @@ -/********************************************************************** -wait.h - -Copyright (C) 1999 Lars Brinkhoff. See the file COPYING for licensing -terms and conditions. -**********************************************************************/ - -#ifndef __PTPROXY_WAIT_H -#define __PTPROXY_WAIT_H - -extern int proxy_wait_return(struct debugger *debugger, pid_t unused); -extern int real_wait_return(struct debugger *debugger); -extern int parent_wait_return(struct debugger *debugger, pid_t unused); - -#endif |