diff options
Diffstat (limited to 'arch/um/kernel/tt/ptproxy/ptrace.c')
| -rw-r--r-- | arch/um/kernel/tt/ptproxy/ptrace.c | 237 |
1 files changed, 0 insertions, 237 deletions
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: - */ |