* infptrace.c (child_xfer_memory): Only use if CHILD_XFER_MEMORY
is not defined. * hppab-nat.c (call_ptrace): Delete redundant function. (kill_inferior, attach, detach, child_resume): Likewise. (child_xfer_memory): Likewise. * hppah-nat.c (call_ptrace): Delete redundant function. (kill_inferior, attach, detach, child_resume): Likewise. * config/pa/hppabsd.mh (NATDEPFILES): Add infptrace.o. * config/pa/hppahpux.mh (NATDEPFILES): Add infptrace.o. * config/pa/nm-hppab.h (FETCH_INFERIOR_REGISTERS): Define. * config/pa/nm-hppah.h (FETCH_INFERIOR_REGISTERS): Define. (CHILD_XFER_MEMORY): Define. (PT_*): Define so that generic infptrace.c code can be used.
This commit is contained in:
Jeff Law
parent
1b880e74fb
commit
918fea3e3c
4 changed files with 36 additions and 268 deletions
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@ -1,3 +1,25 @@
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Fri Jan 21 08:20:18 1994 Jeffrey A. Law (law@snake.cs.utah.edu)
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* infptrace.c (child_xfer_memory): Only use if CHILD_XFER_MEMORY
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is not defined.
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* hppab-nat.c (call_ptrace): Delete redundant function.
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(kill_inferior, attach, detach, child_resume): Likewise.
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(child_xfer_memory): Likewise.
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* hppah-nat.c (call_ptrace): Delete redundant function.
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(kill_inferior, attach, detach, child_resume): Likewise.
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* config/pa/hppabsd.mh (NATDEPFILES): Add infptrace.o.
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* config/pa/hppahpux.mh (NATDEPFILES): Add infptrace.o.
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* config/pa/nm-hppab.h (FETCH_INFERIOR_REGISTERS): Define.
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* config/pa/nm-hppah.h (FETCH_INFERIOR_REGISTERS): define.
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(CHILD_XFER_MEMORY): Define.
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(PT_*): Define so that generic infptrace.c code can be used.
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Fri Jan 21 09:23:33 1994 Jim Kingdon (kingdon@lioth.cygnus.com)
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* xcoffread.c (xcoff_symfile_read): Make second parameter a
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184
gdb/hppab-nat.c
184
gdb/hppab-nat.c
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@ -27,27 +27,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "target.h"
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#include <sys/ptrace.h>
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#ifndef PT_ATTACH
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#define PT_ATTACH PTRACE_ATTACH
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#endif
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#ifndef PT_DETACH
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#define PT_DETACH PTRACE_DETACH
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#endif
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/* This function simply calls ptrace with the given arguments.
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It exists so that all calls to ptrace are isolated in this
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machine-dependent file. */
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int
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call_ptrace (request, pid, addr, data)
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int request, pid;
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PTRACE_ARG3_TYPE addr;
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int data;
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{
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return ptrace (request, pid, addr, data, 0);
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}
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/* Use an extra level of indirection for ptrace calls.
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This lets us breakpoint usefully on call_ptrace. It also
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allows us to pass an extra argument to ptrace without
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@ -55,49 +34,6 @@ call_ptrace (request, pid, addr, data)
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#define ptrace call_ptrace
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void
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kill_inferior ()
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{
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if (inferior_pid == 0)
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return;
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ptrace (PT_KILL, inferior_pid, (PTRACE_ARG3_TYPE) 0, 0);
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wait ((int *)0);
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target_mourn_inferior ();
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}
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#ifdef ATTACH_DETACH
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/* Start debugging the process whose number is PID. */
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int
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attach (pid)
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int pid;
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{
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errno = 0;
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ptrace (PT_ATTACH, pid, (PTRACE_ARG3_TYPE) 0, 0);
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if (errno)
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perror_with_name ("ptrace");
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attach_flag = 1;
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return pid;
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}
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/* Stop debugging the process whose number is PID
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and continue it with signal number SIGNAL.
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SIGNAL = 0 means just continue it. */
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void
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detach (signal)
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int signal;
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{
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errno = 0;
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ptrace (PT_DETACH, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
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if (errno)
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perror_with_name ("ptrace");
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attach_flag = 0;
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}
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#endif /* ATTACH_DETACH */
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#if !defined (offsetof)
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#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
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#endif
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@ -204,123 +140,3 @@ store_inferior_registers (regno)
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return;
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}
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/* Resume execution of process PID.
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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void
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child_resume (pid, step, signal)
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int pid;
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int step;
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enum target_signal signal;
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{
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errno = 0;
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if (pid == -1)
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pid = inferior_pid;
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/* An address of (PTRACE_ARG3_TYPE) 1 tells ptrace to continue from where
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it was. (If GDB wanted it to start some other way, we have already
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written a new PC value to the child.) */
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if (step)
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ptrace (PT_STEP, pid, (PTRACE_ARG3_TYPE) 1, signal);
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else
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ptrace (PT_CONTINUE, pid, (PTRACE_ARG3_TYPE) 1, signal);
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if (errno)
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perror_with_name ("ptrace");
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}
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/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
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in the NEW_SUN_PTRACE case.
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It ought to be straightforward. But it appears that writing did
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not write the data that I specified. I cannot understand where
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it got the data that it actually did write. */
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/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
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to debugger memory starting at MYADDR. Copy to inferior if
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WRITE is nonzero.
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Returns the length copied, which is either the LEN argument or zero.
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This xfer function does not do partial moves, since child_ops
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doesn't allow memory operations to cross below us in the target stack
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anyway. */
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int
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child_xfer_memory (memaddr, myaddr, len, write, target)
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CORE_ADDR memaddr;
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char *myaddr;
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int len;
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int write;
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struct target_ops *target; /* ignored */
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{
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register int i;
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/* Round starting address down to longword boundary. */
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register CORE_ADDR addr = memaddr & - sizeof (int);
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/* Round ending address up; get number of longwords that makes. */
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register int count
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= (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
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/* Allocate buffer of that many longwords. */
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register int *buffer = (int *) alloca (count * sizeof (int));
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if (write)
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{
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/* Fill start and end extra bytes of buffer with existing memory data. */
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if (addr != memaddr || len < (int)sizeof (int)) {
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/* Need part of initial word -- fetch it. */
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buffer[0] = ptrace (PT_READ_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
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0);
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}
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if (count > 1) /* FIXME, avoid if even boundary */
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{
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buffer[count - 1]
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= ptrace (PT_READ_I, inferior_pid,
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(PTRACE_ARG3_TYPE) (addr + (count - 1) * sizeof (int)),
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0);
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}
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/* Copy data to be written over corresponding part of buffer */
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memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
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/* Write the entire buffer. */
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for (i = 0; i < count; i++, addr += sizeof (int))
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{
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errno = 0;
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ptrace (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr,
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buffer[i]);
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if (errno)
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{
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/* Using the appropriate one (I or D) is necessary for
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Gould NP1, at least. */
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errno = 0;
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ptrace (PT_WRITE_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
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buffer[i]);
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}
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if (errno)
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return 0;
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}
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}
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else
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{
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/* Read all the longwords */
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for (i = 0; i < count; i++, addr += sizeof (int))
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{
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errno = 0;
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buffer[i] = ptrace (PT_READ_I, inferior_pid,
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(PTRACE_ARG3_TYPE) addr, 0);
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if (errno)
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return 0;
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QUIT;
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}
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/* Copy appropriate bytes out of the buffer. */
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memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
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}
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return len;
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}
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@ -32,58 +32,6 @@ extern CORE_ADDR text_end;
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static void fetch_register ();
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/* This function simply calls ptrace with the given arguments.
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It exists so that all calls to ptrace are isolated in this
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machine-dependent file. */
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int
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call_ptrace (request, pid, addr, data)
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int request, pid;
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PTRACE_ARG3_TYPE addr;
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int data;
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{
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return ptrace (request, pid, addr, data, 0);
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}
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void
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kill_inferior ()
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{
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if (inferior_pid == 0)
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return;
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ptrace (PT_EXIT, inferior_pid, (PTRACE_ARG3_TYPE) 0, 0, 0);
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wait ((int *)0);
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target_mourn_inferior ();
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}
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/* Start debugging the process whose number is PID. */
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int
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attach (pid)
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int pid;
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{
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errno = 0;
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ptrace (PT_ATTACH, pid, (PTRACE_ARG3_TYPE) 0, 0, 0);
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if (errno)
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perror_with_name ("ptrace");
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attach_flag = 1;
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return pid;
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}
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/* Stop debugging the process whose number is PID
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and continue it with signal number SIGNAL.
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SIGNAL = 0 means just continue it. */
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void
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detach (signal)
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int signal;
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{
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errno = 0;
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ptrace (PT_DETACH, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
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if (errno)
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perror_with_name ("ptrace");
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attach_flag = 0;
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}
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/* Fetch all registers, or just one, from the child process. */
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void
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fetch_inferior_registers (regno)
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int regno;
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@ -200,34 +148,6 @@ fetch_register (regno)
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error_exit:;
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}
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/* Resume execution of process PID.
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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void
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child_resume (pid, step, signal)
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int pid;
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int step;
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enum target_signal signal;
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{
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errno = 0;
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if (pid == -1)
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pid = inferior_pid;
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/* An address of (PTRACE_ARG3_TYPE) 1 tells ptrace to continue from where
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it was. (If GDB wanted it to start some other way, we have already
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written a new PC value to the child.) */
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if (step)
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ptrace (PT_SINGLE, pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
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else
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ptrace (PT_CONTIN, pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
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if (errno)
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perror_with_name ("ptrace");
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}
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/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
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to debugger memory starting at MYADDR. Copy to inferior if
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WRITE is nonzero.
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@ -125,14 +125,19 @@ void
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child_resume (pid, step, signal)
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int pid;
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int step;
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int signal;
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enum target_signal signal;
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{
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errno = 0;
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if (pid == -1)
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#ifdef PIDGET /* XXX Lynx */
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/* Resume all threads. */
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#ifdef PIDGET
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/* This is for Lynx, and should be cleaned up by having Lynx be
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a separate debugging target, with its own target_resume function. */
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pid = PIDGET (inferior_pid);
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#else
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/* I think this only gets used in the non-threaded case, where "resume
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all threads" and "resume inferior_pid" are the same. */
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pid = inferior_pid;
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#endif
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@ -146,9 +151,11 @@ child_resume (pid, step, signal)
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instructions), so we don't have to worry about that here. */
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if (step)
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ptrace (PT_STEP, pid, (PTRACE_ARG3_TYPE) 1, signal);
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ptrace (PT_STEP, pid, (PTRACE_ARG3_TYPE) 1,
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target_signal_to_host (signal));
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else
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ptrace (PT_CONTINUE, pid, (PTRACE_ARG3_TYPE) 1, signal);
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ptrace (PT_CONTINUE, pid, (PTRACE_ARG3_TYPE) 1,
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target_signal_to_host (signal));
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if (errno)
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perror_with_name ("ptrace");
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@ -342,6 +349,8 @@ store_inferior_registers (regno)
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}
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#endif /* !defined (FETCH_INFERIOR_REGISTERS). */
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#if !defined (CHILD_XFER_MEMORY)
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/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
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in the NEW_SUN_PTRACE case.
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It ought to be straightforward. But it appears that writing did
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@ -440,3 +449,4 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
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}
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return len;
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}
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#endif /* !defined (CHILD_XFER_MEMORY). */
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