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Diffstat (limited to 'arch/um/kernel/tt/ptproxy/ptrace.c')
-rw-r--r--arch/um/kernel/tt/ptproxy/ptrace.c237
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:
- */