diff options
author | Daniel Jacobowitz <drow@false.org> | 2003-06-20 14:08:16 +0000 |
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committer | Daniel Jacobowitz <drow@false.org> | 2003-06-20 14:08:16 +0000 |
commit | 73d37363f30bd902230cbb601d76aa8ec22f81ad (patch) | |
tree | 67c592954b4fba9bef46af6d770e201e8c95a111 /gdb/gdbserver | |
parent | 0b1b50c059c2bcf7315c607a3f34730ce0f3bd8c (diff) | |
download | fsf-binutils-gdb-73d37363f30bd902230cbb601d76aa8ec22f81ad.zip fsf-binutils-gdb-73d37363f30bd902230cbb601d76aa8ec22f81ad.tar.gz fsf-binutils-gdb-73d37363f30bd902230cbb601d76aa8ec22f81ad.tar.bz2 |
* Makefile.in (SFILES): Update.
* low-hppabsd.c, low-lynx.c, low-nbsd.c, low-sim.c, low-sparc.c,
low-sun3.c: Remove files.
Diffstat (limited to 'gdb/gdbserver')
-rw-r--r-- | gdb/gdbserver/ChangeLog | 6 | ||||
-rw-r--r-- | gdb/gdbserver/Makefile.in | 14 | ||||
-rw-r--r-- | gdb/gdbserver/low-hppabsd.c | 355 | ||||
-rw-r--r-- | gdb/gdbserver/low-lynx.c | 745 | ||||
-rw-r--r-- | gdb/gdbserver/low-nbsd.c | 599 | ||||
-rw-r--r-- | gdb/gdbserver/low-sim.c | 269 | ||||
-rw-r--r-- | gdb/gdbserver/low-sparc.c | 314 | ||||
-rw-r--r-- | gdb/gdbserver/low-sun3.c | 291 |
8 files changed, 16 insertions, 2577 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index c865334..8886ace 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,9 @@ +2003-06-20 Daniel Jacobowitz <drow@mvista.com> + + * Makefile.in (SFILES): Update. + * low-hppabsd.c, low-lynx.c, low-nbsd.c, low-sim.c, low-sparc.c, + low-sun3.c: Remove files. + 2003-06-17 Daniel Jacobowitz <drow@mvista.com> * linux-low.c: Move comment to linux_thread_alive where it belonged. diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in index 763c21e..80667f9 100644 --- a/gdb/gdbserver/Makefile.in +++ b/gdb/gdbserver/Makefile.in @@ -113,10 +113,16 @@ LINTFLAGS= $(BFD_CFLAGS) # All source files that go into linking GDB remote server. -SFILES = $(srcdir)/low-hppabsd.c $(srcdir)/low-linux.c $(srcdir)/low-lynx.c \ - $(srcdir)/low-nbsd.c $(srcdir)/low-sim.c $(srcdir)/low-sparc.c \ - $(srcdir)/low-sun3.c $(srcdir)/utils.c $(srcdir)/server.c \ - $(srcdir)/remote-utils.c +SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c \ + $(srcdir)/mem-break.c $(srcdir)/proc-service.c $(srcdir)/regcache.c \ + $(srcdir)/remote-utils.c $(srcdir)/server.c $(srcdir)/target.c \ + $(srcdir)/thread-db.c $(srcdir)/utils.c \ + $(srcdir)/linux-arm-low.c $(srcdir)/linux-i386-low.c \ + $(srcdir)/i387-fp.c \ + $(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \ + $(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \ + $(srcdir)/linux-ppc-low.c $(srcdir)/linux-s390-low.c \ + $(srcdir)/linux-sh-low.c $(srcdir)/linux-x86-64-low.c DEPFILES = @GDBSERVER_DEPFILES@ diff --git a/gdb/gdbserver/low-hppabsd.c b/gdb/gdbserver/low-hppabsd.c deleted file mode 100644 index 3287923..0000000 --- a/gdb/gdbserver/low-hppabsd.c +++ /dev/null @@ -1,355 +0,0 @@ -/* Low level interface to ptrace, for the remote server for GDB. - Copyright 1995, 1996, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "server.h" -#include <sys/wait.h> -#include "frame.h" -#include "inferior.h" - -#include <stdio.h> -#include <sys/param.h> -#include <sys/dir.h> -#include <sys/user.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <sgtty.h> -#include <fcntl.h> - -/***************Begin MY defs*********************/ -static char my_registers[REGISTER_BYTES]; -char *registers = my_registers; -/***************End MY defs*********************/ - -#include <sys/ptrace.h> -#include <machine/reg.h> - -extern int errno; - -/* Start an inferior process and returns its pid. - ALLARGS is a vector of program-name and args. */ - -int -create_inferior (char *program, char **allargs) -{ - int pid; - - pid = fork (); - if (pid < 0) - perror_with_name ("fork"); - - if (pid == 0) - { - ptrace (PT_TRACE_ME, 0, 0, 0, 0); - - execv (program, allargs); - - fprintf (stderr, "Cannot exec %s: %s.\n", program, - errno < sys_nerr ? sys_errlist[errno] : "unknown error"); - fflush (stderr); - _exit (0177); - } - - return pid; -} - -/* Kill the inferior process. Make us have no inferior. */ - -void -kill_inferior (void) -{ - if (inferior_pid == 0) - return; - ptrace (8, inferior_pid, 0, 0, 0); - wait (0); -/*************inferior_died ();****VK**************/ -} - -/* Attaching is not supported. */ -int -myattach (int pid) -{ - return -1; -} - -/* Return nonzero if the given thread is still alive. */ -int -mythread_alive (int pid) -{ - return 1; -} - -/* Wait for process, returns status */ - -unsigned char -mywait (char *status) -{ - int pid; - union wait w; - - enable_async_io (); - pid = waitpid (inferior_pid, &w, 0); - disable_async_io (); - if (pid != inferior_pid) - perror_with_name ("wait"); - - if (WIFEXITED (w)) - { - fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w)); - *status = 'W'; - return ((unsigned char) WEXITSTATUS (w)); - } - else if (!WIFSTOPPED (w)) - { - fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w)); - *status = 'X'; - return ((unsigned char) WTERMSIG (w)); - } - - fetch_inferior_registers (0); - - *status = 'T'; - return ((unsigned char) WSTOPSIG (w)); -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -void -myresume (int step, int signal) -{ - errno = 0; - ptrace (step ? PT_STEP : PT_CONTINUE, inferior_pid, 1, signal, 0); - if (errno) - perror_with_name ("ptrace"); -} - - -#if !defined (offsetof) -#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) -#endif - -/* U_REGS_OFFSET is the offset of the registers within the u area. */ -#if !defined (U_REGS_OFFSET) -#define U_REGS_OFFSET \ - ptrace (PT_READ_U, inferior_pid, \ - (PTRACE_ARG3_TYPE) (offsetof (struct user, u_ar0)), 0) \ - - KERNEL_U_ADDR -#endif - -CORE_ADDR -register_addr (int regno, CORE_ADDR blockend) -{ - CORE_ADDR addr; - - if (regno < 0 || regno >= NUM_REGS) - error ("Invalid register number %d.", regno); - - REGISTER_U_ADDR (addr, blockend, regno); - - return addr; -} - -/* Fetch one register. */ - -static void -fetch_register (int regno) -{ - register unsigned int regaddr; - char buf[MAX_REGISTER_RAW_SIZE]; - register int i; - - /* Offset of registers within the u area. */ - unsigned int offset; - - offset = U_REGS_OFFSET; - - regaddr = register_addr (regno, offset); - for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int)) - { - errno = 0; - *(int *) ®isters[regno * 4 + i] = ptrace (PT_RUREGS, inferior_pid, - (PTRACE_ARG3_TYPE) regaddr, 0, 0); - regaddr += sizeof (int); - if (errno != 0) - { - /* Warning, not error, in case we are attached; sometimes the - kernel doesn't let us at the registers. */ - char *err = strerror (errno); - char *msg = alloca (strlen (err) + 128); - sprintf (msg, "reading register %d: %s", regno, err); - error (msg); - goto error_exit; - } - } -error_exit:; -} - -/* Fetch all registers, or just one, from the child process. */ - -void -fetch_inferior_registers (int regno) -{ - if (regno == -1 || regno == 0) - for (regno = 0; regno < NUM_REGS; regno++) - fetch_register (regno); - else - fetch_register (regno); -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int regno) -{ - register unsigned int regaddr; - char buf[80]; - extern char registers[]; - register int i; - unsigned int offset = U_REGS_OFFSET; - int scratch; - - if (regno >= 0) - { - if (CANNOT_STORE_REGISTER (regno)) - return; - regaddr = register_addr (regno, offset); - errno = 0; - if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM) - { - scratch = *(int *) ®isters[REGISTER_BYTE (regno)] | 0x3; - ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, - scratch, 0); - if (errno != 0) - { - /* Error, even if attached. Failing to write these two - registers is pretty serious. */ - sprintf (buf, "writing register number %d", regno); - perror_with_name (buf); - } - } - else - for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int)) - { - errno = 0; - ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, - *(int *) ®isters[REGISTER_BYTE (regno) + i], 0); - if (errno != 0) - { - /* Warning, not error, in case we are attached; sometimes the - kernel doesn't let us at the registers. */ - char *err = strerror (errno); - char *msg = alloca (strlen (err) + 128); - sprintf (msg, "writing register %d: %s", - regno, err); - error (msg); - return; - } - regaddr += sizeof (int); - } - } - else - for (regno = 0; regno < NUM_REGS; regno++) - store_inferior_registers (regno); -} - -/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory - in the NEW_SUN_PTRACE case. - It ought to be straightforward. But it appears that writing did - not write the data that I specified. I cannot understand where - it got the data that it actually did write. */ - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -void -read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - buffer[i] = ptrace (1, inferior_pid, addr, 0, 0); - } - - /* Copy appropriate bytes out of the buffer. */ - memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - extern int errno; - - /* Fill start and end extra bytes of buffer with existing memory data. */ - - buffer[0] = ptrace (1, inferior_pid, addr, 0, 0); - - if (count > 1) - { - buffer[count - 1] - = ptrace (1, inferior_pid, - addr + (count - 1) * sizeof (int), 0, 0); - } - - /* Copy data to be written over corresponding part of buffer */ - - memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); - - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - ptrace (4, inferior_pid, addr, buffer[i], 0); - if (errno) - return errno; - } - - return 0; -} - -void -initialize_low (void) -{ -} diff --git a/gdb/gdbserver/low-lynx.c b/gdb/gdbserver/low-lynx.c deleted file mode 100644 index 90e18db..0000000 --- a/gdb/gdbserver/low-lynx.c +++ /dev/null @@ -1,745 +0,0 @@ -/* Low level interface to ptrace, for the remote server for GDB. - Copyright 1986, 1987, 1993, 1994, 1995, 1999, 2000, 2001, 2002 - Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "server.h" -#include "frame.h" -#include "inferior.h" - -#include <stdio.h> -#include <sys/param.h> -#include <sys/dir.h> -#define LYNXOS -#include <sys/mem.h> -#include <sys/signal.h> -#include <sys/file.h> -#include <sys/kernel.h> -#ifndef __LYNXOS -#define __LYNXOS -#endif -#include <sys/itimer.h> -#include <sys/time.h> -#include <sys/resource.h> -#include <sys/proc.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <sgtty.h> -#include <fcntl.h> -#include <sys/wait.h> -#include <sys/fpp.h> - -static char my_registers[REGISTER_BYTES]; -char *registers = my_registers; - -#include <sys/ptrace.h> - -/* Start an inferior process and returns its pid. - ALLARGS is a vector of program-name and args. */ - -int -create_inferior (char *program, char **allargs) -{ - int pid; - - pid = fork (); - if (pid < 0) - perror_with_name ("fork"); - - if (pid == 0) - { - int pgrp; - - /* Switch child to it's own process group so that signals won't - directly affect gdbserver. */ - - pgrp = getpid (); - setpgrp (0, pgrp); - ioctl (0, TIOCSPGRP, &pgrp); - - ptrace (PTRACE_TRACEME, 0, (PTRACE_ARG3_TYPE) 0, 0); - - execv (program, allargs); - - fprintf (stderr, "GDBserver (process %d): Cannot exec %s: %s.\n", - getpid (), program, - errno < sys_nerr ? sys_errlist[errno] : "unknown error"); - fflush (stderr); - _exit (0177); - } - - return pid; -} - -/* Attaching is not supported. */ -int -myattach (int pid) -{ - return -1; -} - -/* Kill the inferior process. Make us have no inferior. */ - -void -kill_inferior (void) -{ - if (inferior_pid == 0) - return; - ptrace (PTRACE_KILL, inferior_pid, 0, 0); - wait (0); - - inferior_pid = 0; -} - -/* Return nonzero if the given thread is still alive. */ -int -mythread_alive (int pid) -{ - /* Arggh. Apparently pthread_kill only works for threads within - the process that calls pthread_kill. - - We want to avoid the lynx signal extensions as they simply don't - map well to the generic gdb interface we want to keep. - - All we want to do is determine if a particular thread is alive; - it appears as if we can just make a harmless thread specific - ptrace call to do that. */ - return (ptrace (PTRACE_THREADUSER, - BUILDPID (PIDGET (inferior_pid), pid), 0, 0) != -1); -} - -/* Wait for process, returns status */ - -unsigned char -mywait (char *status) -{ - int pid; - union wait w; - - while (1) - { - enable_async_io (); - - pid = wait (&w); - - disable_async_io (); - - if (pid != PIDGET (inferior_pid)) - perror_with_name ("wait"); - - thread_from_wait = w.w_tid; - inferior_pid = BUILDPID (inferior_pid, w.w_tid); - - if (WIFSTOPPED (w) - && WSTOPSIG (w) == SIGTRAP) - { - int realsig; - - realsig = ptrace (PTRACE_GETTRACESIG, inferior_pid, - (PTRACE_ARG3_TYPE) 0, 0); - - if (realsig == SIGNEWTHREAD) - { - /* It's a new thread notification. Nothing to do here since - the machine independent code in wait_for_inferior will - add the thread to the thread list and restart the thread - when pid != inferior_pid and pid is not in the thread list. - We don't even want to muck with realsig -- the code in - wait_for_inferior expects SIGTRAP. */ - ; - } - } - break; - } - - if (WIFEXITED (w)) - { - *status = 'W'; - return ((unsigned char) WEXITSTATUS (w)); - } - else if (!WIFSTOPPED (w)) - { - *status = 'X'; - return ((unsigned char) WTERMSIG (w)); - } - - fetch_inferior_registers (0); - - *status = 'T'; - return ((unsigned char) WSTOPSIG (w)); -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -void -myresume (int step, int signal) -{ - errno = 0; - ptrace (step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT, - BUILDPID (inferior_pid, cont_thread == -1 ? 0 : cont_thread), - 1, signal); - if (errno) - perror_with_name ("ptrace"); -} - -#undef offsetof -#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) - -/* Mapping between GDB register #s and offsets into econtext. Must be - consistent with REGISTER_NAMES macro in various tmXXX.h files. */ - -#define X(ENTRY)(offsetof(struct econtext, ENTRY)) - -#ifdef I386 -/* Mappings from tm-i386v.h */ - -static int regmap[] = -{ - X (eax), - X (ecx), - X (edx), - X (ebx), - X (esp), /* sp */ - X (ebp), /* fp */ - X (esi), - X (edi), - X (eip), /* pc */ - X (flags), /* ps */ - X (cs), - X (ss), - X (ds), - X (es), - X (ecode), /* Lynx doesn't give us either fs or gs, so */ - X (fault), /* we just substitute these two in the hopes - that they are useful. */ -}; -#endif - -#ifdef M68K -/* Mappings from tm-m68k.h */ - -static int regmap[] = -{ - X (regs[0]), /* d0 */ - X (regs[1]), /* d1 */ - X (regs[2]), /* d2 */ - X (regs[3]), /* d3 */ - X (regs[4]), /* d4 */ - X (regs[5]), /* d5 */ - X (regs[6]), /* d6 */ - X (regs[7]), /* d7 */ - X (regs[8]), /* a0 */ - X (regs[9]), /* a1 */ - X (regs[10]), /* a2 */ - X (regs[11]), /* a3 */ - X (regs[12]), /* a4 */ - X (regs[13]), /* a5 */ - X (regs[14]), /* fp */ - 0, /* sp */ - X (status), /* ps */ - X (pc), - - X (fregs[0 * 3]), /* fp0 */ - X (fregs[1 * 3]), /* fp1 */ - X (fregs[2 * 3]), /* fp2 */ - X (fregs[3 * 3]), /* fp3 */ - X (fregs[4 * 3]), /* fp4 */ - X (fregs[5 * 3]), /* fp5 */ - X (fregs[6 * 3]), /* fp6 */ - X (fregs[7 * 3]), /* fp7 */ - - X (fcregs[0]), /* fpcontrol */ - X (fcregs[1]), /* fpstatus */ - X (fcregs[2]), /* fpiaddr */ - X (ssw), /* fpcode */ - X (fault), /* fpflags */ -}; -#endif - -#ifdef SPARC -/* Mappings from tm-sparc.h */ - -#define FX(ENTRY)(offsetof(struct fcontext, ENTRY)) - -static int regmap[] = -{ - -1, /* g0 */ - X (g1), - X (g2), - X (g3), - X (g4), - -1, /* g5->g7 aren't saved by Lynx */ - -1, - -1, - - X (o[0]), - X (o[1]), - X (o[2]), - X (o[3]), - X (o[4]), - X (o[5]), - X (o[6]), /* sp */ - X (o[7]), /* ra */ - - -1, -1, -1, -1, -1, -1, -1, -1, /* l0 -> l7 */ - - -1, -1, -1, -1, -1, -1, -1, -1, /* i0 -> i7 */ - - FX (f.fregs[0]), /* f0 */ - FX (f.fregs[1]), - FX (f.fregs[2]), - FX (f.fregs[3]), - FX (f.fregs[4]), - FX (f.fregs[5]), - FX (f.fregs[6]), - FX (f.fregs[7]), - FX (f.fregs[8]), - FX (f.fregs[9]), - FX (f.fregs[10]), - FX (f.fregs[11]), - FX (f.fregs[12]), - FX (f.fregs[13]), - FX (f.fregs[14]), - FX (f.fregs[15]), - FX (f.fregs[16]), - FX (f.fregs[17]), - FX (f.fregs[18]), - FX (f.fregs[19]), - FX (f.fregs[20]), - FX (f.fregs[21]), - FX (f.fregs[22]), - FX (f.fregs[23]), - FX (f.fregs[24]), - FX (f.fregs[25]), - FX (f.fregs[26]), - FX (f.fregs[27]), - FX (f.fregs[28]), - FX (f.fregs[29]), - FX (f.fregs[30]), - FX (f.fregs[31]), - - X (y), - X (psr), - X (wim), - X (tbr), - X (pc), - X (npc), - FX (fsr), /* fpsr */ - -1, /* cpsr */ -}; -#endif - -#ifdef SPARC - -/* This routine handles some oddball cases for Sparc registers and LynxOS. - In partucular, it causes refs to G0, g5->7, and all fp regs to return zero. - It also handles knows where to find the I & L regs on the stack. */ - -void -fetch_inferior_registers (int regno) -{ -#if 0 - int whatregs = 0; - -#define WHATREGS_FLOAT 1 -#define WHATREGS_GEN 2 -#define WHATREGS_STACK 4 - - if (regno == -1) - whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK; - else if (regno >= L0_REGNUM && regno <= I7_REGNUM) - whatregs = WHATREGS_STACK; - else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32) - whatregs = WHATREGS_FLOAT; - else - whatregs = WHATREGS_GEN; - - if (whatregs & WHATREGS_GEN) - { - struct econtext ec; /* general regs */ - char buf[MAX_REGISTER_RAW_SIZE]; - int retval; - int i; - - errno = 0; - retval = ptrace (PTRACE_GETREGS, - BUILDPID (inferior_pid, general_thread), - (PTRACE_ARG3_TYPE) & ec, - 0); - if (errno) - perror_with_name ("Sparc fetch_inferior_registers(ptrace)"); - - memset (buf, 0, REGISTER_RAW_SIZE (G0_REGNUM)); - supply_register (G0_REGNUM, buf); - supply_register (TBR_REGNUM, (char *) &ec.tbr); - - memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &ec.g1, - 4 * REGISTER_RAW_SIZE (G1_REGNUM)); - for (i = G1_REGNUM; i <= G1_REGNUM + 3; i++) - register_valid[i] = 1; - - supply_register (PS_REGNUM, (char *) &ec.psr); - supply_register (Y_REGNUM, (char *) &ec.y); - supply_register (PC_REGNUM, (char *) &ec.pc); - supply_register (NPC_REGNUM, (char *) &ec.npc); - supply_register (WIM_REGNUM, (char *) &ec.wim); - - memcpy (®isters[REGISTER_BYTE (O0_REGNUM)], ec.o, - 8 * REGISTER_RAW_SIZE (O0_REGNUM)); - for (i = O0_REGNUM; i <= O0_REGNUM + 7; i++) - register_valid[i] = 1; - } - - if (whatregs & WHATREGS_STACK) - { - CORE_ADDR sp; - int i; - - sp = read_register (SP_REGNUM); - - target_xfer_memory (sp + FRAME_SAVED_I0, - ®isters[REGISTER_BYTE (I0_REGNUM)], - 8 * REGISTER_RAW_SIZE (I0_REGNUM), 0); - for (i = I0_REGNUM; i <= I7_REGNUM; i++) - register_valid[i] = 1; - - target_xfer_memory (sp + FRAME_SAVED_L0, - ®isters[REGISTER_BYTE (L0_REGNUM)], - 8 * REGISTER_RAW_SIZE (L0_REGNUM), 0); - for (i = L0_REGNUM; i <= L0_REGNUM + 7; i++) - register_valid[i] = 1; - } - - if (whatregs & WHATREGS_FLOAT) - { - struct fcontext fc; /* fp regs */ - int retval; - int i; - - errno = 0; - retval = ptrace (PTRACE_GETFPREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & fc, - 0); - if (errno) - perror_with_name ("Sparc fetch_inferior_registers(ptrace)"); - - memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], fc.f.fregs, - 32 * REGISTER_RAW_SIZE (FP0_REGNUM)); - for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++) - register_valid[i] = 1; - - supply_register (FPS_REGNUM, (char *) &fc.fsr); - } -#endif -} - -/* This routine handles storing of the I & L regs for the Sparc. The trick - here is that they actually live on the stack. The really tricky part is - that when changing the stack pointer, the I & L regs must be written to - where the new SP points, otherwise the regs will be incorrect when the - process is started up again. We assume that the I & L regs are valid at - this point. */ - -void -store_inferior_registers (int regno) -{ -#if 0 - int whatregs = 0; - - if (regno == -1) - whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK; - else if (regno >= L0_REGNUM && regno <= I7_REGNUM) - whatregs = WHATREGS_STACK; - else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32) - whatregs = WHATREGS_FLOAT; - else if (regno == SP_REGNUM) - whatregs = WHATREGS_STACK | WHATREGS_GEN; - else - whatregs = WHATREGS_GEN; - - if (whatregs & WHATREGS_GEN) - { - struct econtext ec; /* general regs */ - int retval; - - ec.tbr = read_register (TBR_REGNUM); - memcpy (&ec.g1, ®isters[REGISTER_BYTE (G1_REGNUM)], - 4 * REGISTER_RAW_SIZE (G1_REGNUM)); - - ec.psr = read_register (PS_REGNUM); - ec.y = read_register (Y_REGNUM); - ec.pc = read_register (PC_REGNUM); - ec.npc = read_register (NPC_REGNUM); - ec.wim = read_register (WIM_REGNUM); - - memcpy (ec.o, ®isters[REGISTER_BYTE (O0_REGNUM)], - 8 * REGISTER_RAW_SIZE (O0_REGNUM)); - - errno = 0; - retval = ptrace (PTRACE_SETREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & ec, - 0); - if (errno) - perror_with_name ("Sparc fetch_inferior_registers(ptrace)"); - } - - if (whatregs & WHATREGS_STACK) - { - int regoffset; - CORE_ADDR sp; - - sp = read_register (SP_REGNUM); - - if (regno == -1 || regno == SP_REGNUM) - { - if (!register_valid[L0_REGNUM + 5]) - abort (); - target_xfer_memory (sp + FRAME_SAVED_I0, - ®isters[REGISTER_BYTE (I0_REGNUM)], - 8 * REGISTER_RAW_SIZE (I0_REGNUM), 1); - - target_xfer_memory (sp + FRAME_SAVED_L0, - ®isters[REGISTER_BYTE (L0_REGNUM)], - 8 * REGISTER_RAW_SIZE (L0_REGNUM), 1); - } - else if (regno >= L0_REGNUM && regno <= I7_REGNUM) - { - if (!register_valid[regno]) - abort (); - if (regno >= L0_REGNUM && regno <= L0_REGNUM + 7) - regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM) - + FRAME_SAVED_L0; - else - regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (I0_REGNUM) - + FRAME_SAVED_I0; - target_xfer_memory (sp + regoffset, ®isters[REGISTER_BYTE (regno)], - REGISTER_RAW_SIZE (regno), 1); - } - } - - if (whatregs & WHATREGS_FLOAT) - { - struct fcontext fc; /* fp regs */ - int retval; - -/* We read fcontext first so that we can get good values for fq_t... */ - errno = 0; - retval = ptrace (PTRACE_GETFPREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & fc, - 0); - if (errno) - perror_with_name ("Sparc fetch_inferior_registers(ptrace)"); - - memcpy (fc.f.fregs, ®isters[REGISTER_BYTE (FP0_REGNUM)], - 32 * REGISTER_RAW_SIZE (FP0_REGNUM)); - - fc.fsr = read_register (FPS_REGNUM); - - errno = 0; - retval = ptrace (PTRACE_SETFPREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & fc, - 0); - if (errno) - perror_with_name ("Sparc fetch_inferior_registers(ptrace)"); - } -#endif -} -#endif /* SPARC */ - -#ifndef SPARC - -/* Return the offset relative to the start of the per-thread data to the - saved context block. */ - -static unsigned long -lynx_registers_addr (void) -{ - CORE_ADDR stblock; - int ecpoff = offsetof (st_t, ecp); - CORE_ADDR ecp; - - errno = 0; - stblock = (CORE_ADDR) ptrace (PTRACE_THREADUSER, BUILDPID (inferior_pid, general_thread), - (PTRACE_ARG3_TYPE) 0, 0); - if (errno) - perror_with_name ("PTRACE_THREADUSER"); - - ecp = (CORE_ADDR) ptrace (PTRACE_PEEKTHREAD, BUILDPID (inferior_pid, general_thread), - (PTRACE_ARG3_TYPE) ecpoff, 0); - if (errno) - perror_with_name ("lynx_registers_addr(PTRACE_PEEKTHREAD)"); - - return ecp - stblock; -} - -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int ignored) -{ - int regno; - unsigned long reg; - unsigned long ecp; - - ecp = lynx_registers_addr (); - - for (regno = 0; regno < NUM_REGS; regno++) - { - int ptrace_fun = PTRACE_PEEKTHREAD; - -#ifdef PTRACE_PEEKUSP - ptrace_fun = regno == SP_REGNUM ? PTRACE_PEEKUSP : PTRACE_PEEKTHREAD; -#endif - - errno = 0; - reg = ptrace (ptrace_fun, BUILDPID (inferior_pid, general_thread), - (PTRACE_ARG3_TYPE) (ecp + regmap[regno]), 0); - if (errno) - perror_with_name ("fetch_inferior_registers(PTRACE_PEEKTHREAD)"); - - *(unsigned long *) ®isters[REGISTER_BYTE (regno)] = reg; - } -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int ignored) -{ - int regno; - unsigned long reg; - unsigned long ecp; - - ecp = lynx_registers_addr (); - - for (regno = 0; regno < NUM_REGS; regno++) - { - int ptrace_fun = PTRACE_POKEUSER; - -#ifdef PTRACE_POKEUSP - ptrace_fun = regno == SP_REGNUM ? PTRACE_POKEUSP : PTRACE_POKEUSER; -#endif - - reg = *(unsigned long *) ®isters[REGISTER_BYTE (regno)]; - - errno = 0; - ptrace (ptrace_fun, BUILDPID (inferior_pid, general_thread), - (PTRACE_ARG3_TYPE) (ecp + regmap[regno]), reg); - if (errno) - perror_with_name ("PTRACE_POKEUSER"); - } -} - -#endif /* ! SPARC */ - -/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory - in the NEW_SUN_PTRACE case. - It ought to be straightforward. But it appears that writing did - not write the data that I specified. I cannot understand where - it got the data that it actually did write. */ - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -void -read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - buffer[i] = ptrace (PTRACE_PEEKTEXT, BUILDPID (inferior_pid, general_thread), addr, 0); - } - - /* Copy appropriate bytes out of the buffer. */ - memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - extern int errno; - - /* Fill start and end extra bytes of buffer with existing memory data. */ - - buffer[0] = ptrace (PTRACE_PEEKTEXT, BUILDPID (inferior_pid, general_thread), addr, 0); - - if (count > 1) - { - buffer[count - 1] - = ptrace (PTRACE_PEEKTEXT, BUILDPID (inferior_pid, general_thread), - addr + (count - 1) * sizeof (int), 0); - } - - /* Copy data to be written over corresponding part of buffer */ - - memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); - - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - while (1) - { - errno = 0; - ptrace (PTRACE_POKETEXT, BUILDPID (inferior_pid, general_thread), addr, buffer[i]); - if (errno) - { - fprintf (stderr, "\ -ptrace (PTRACE_POKETEXT): errno=%d, pid=0x%x, addr=0x%x, buffer[i] = 0x%x\n", - errno, BUILDPID (inferior_pid, general_thread), - addr, buffer[i]); - fprintf (stderr, "Sleeping for 1 second\n"); - sleep (1); - } - else - break; - } - } - - return 0; -} - -void -initialize_low (void) -{ -} diff --git a/gdb/gdbserver/low-nbsd.c b/gdb/gdbserver/low-nbsd.c deleted file mode 100644 index 8bec0d9..0000000 --- a/gdb/gdbserver/low-nbsd.c +++ /dev/null @@ -1,599 +0,0 @@ -/* Low level interface to ptrace, for the remote server for GDB. - Copyright 1986, 1987, 1993, 2000, 2001, 2002 Free Software Foundation, Inc. - -This file is part of GDB. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "server.h" -#include <sys/types.h> -#include <sys/wait.h> -#include "frame.h" -#include "inferior.h" - -#include <stdio.h> -#include <errno.h> - -/***************Begin MY defs*********************/ -static char my_registers[REGISTER_BYTES]; -char *registers = my_registers; -/***************End MY defs*********************/ - -#include <sys/ptrace.h> -#include <machine/reg.h> - -#define RF(dst, src) \ - memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src)) - -#define RS(src, dst) \ - memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst)) - -#ifdef __i386__ -struct env387 - { - unsigned short control; - unsigned short r0; - unsigned short status; - unsigned short r1; - unsigned short tag; - unsigned short r2; - unsigned long eip; - unsigned short code_seg; - unsigned short opcode; - unsigned long operand; - unsigned short operand_seg; - unsigned short r3; - unsigned char regs[8][10]; - }; - -/* i386_register_raw_size[i] is the number of bytes of storage in the - actual machine representation for register i. */ -int i386_register_raw_size[MAX_NUM_REGS] = { - 4, 4, 4, 4, - 4, 4, 4, 4, - 4, 4, 4, 4, - 4, 4, 4, 4, - 10, 10, 10, 10, - 10, 10, 10, 10, - 4, 4, 4, 4, - 4, 4, 4, 4, - 16, 16, 16, 16, - 16, 16, 16, 16, - 4 -}; - -int i386_register_byte[MAX_NUM_REGS]; - -static void -initialize_arch (void) -{ - /* Initialize the table saying where each register starts in the - register file. */ - { - int i, offset; - - offset = 0; - for (i = 0; i < MAX_NUM_REGS; i++) - { - i386_register_byte[i] = offset; - offset += i386_register_raw_size[i]; - } - } -} -#endif /* !__i386__ */ - -#ifdef __m68k__ -static void -initialize_arch (void) -{ -} -#endif /* !__m68k__ */ - -#ifdef __ns32k__ -static void -initialize_arch (void) -{ -} -#endif /* !__ns32k__ */ - -#ifdef __powerpc__ -#include "ppc-tdep.h" - -static void -initialize_arch (void) -{ -} -#endif /* !__powerpc__ */ - - -/* Start an inferior process and returns its pid. - ALLARGS is a vector of program-name and args. */ - -int -create_inferior (char *program, char **allargs) -{ - int pid; - - pid = fork (); - if (pid < 0) - perror_with_name ("fork"); - - if (pid == 0) - { - ptrace (PT_TRACE_ME, 0, 0, 0); - - execv (program, allargs); - - fprintf (stderr, "Cannot exec %s: %s.\n", program, - errno < sys_nerr ? sys_errlist[errno] : "unknown error"); - fflush (stderr); - _exit (0177); - } - - return pid; -} - -/* Attaching is not supported. */ -int -myattach (int pid) -{ - return -1; -} - -/* Kill the inferior process. Make us have no inferior. */ - -void -kill_inferior (void) -{ - if (inferior_pid == 0) - return; - ptrace (PT_KILL, inferior_pid, 0, 0); - wait (0); - /*************inferior_died ();****VK**************/ -} - -/* Return nonzero if the given thread is still alive. */ -int -mythread_alive (int pid) -{ - return 1; -} - -/* Wait for process, returns status */ - -unsigned char -mywait (char *status) -{ - int pid; - int w; - - enable_async_io (); - pid = waitpid (inferior_pid, &w, 0); - disable_async_io (); - if (pid != inferior_pid) - perror_with_name ("wait"); - - if (WIFEXITED (w)) - { - fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w)); - *status = 'W'; - return ((unsigned char) WEXITSTATUS (w)); - } - else if (!WIFSTOPPED (w)) - { - fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w)); - *status = 'X'; - return ((unsigned char) WTERMSIG (w)); - } - - fetch_inferior_registers (0); - - *status = 'T'; - return ((unsigned char) WSTOPSIG (w)); -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -void -myresume (int step, int signal) -{ - errno = 0; - ptrace (step ? PT_STEP : PT_CONTINUE, inferior_pid, - (PTRACE_ARG3_TYPE) 1, signal); - if (errno) - perror_with_name ("ptrace"); -} - - -#ifdef __i386__ -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int ignored) -{ - struct reg inferior_registers; - struct env387 inferior_fp_registers; - - ptrace (PT_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_registers, 0); - ptrace (PT_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); - - RF ( 0, inferior_registers.r_eax); - RF ( 1, inferior_registers.r_ecx); - RF ( 2, inferior_registers.r_edx); - RF ( 3, inferior_registers.r_ebx); - RF ( 4, inferior_registers.r_esp); - RF ( 5, inferior_registers.r_ebp); - RF ( 6, inferior_registers.r_esi); - RF ( 7, inferior_registers.r_edi); - RF ( 8, inferior_registers.r_eip); - RF ( 9, inferior_registers.r_eflags); - RF (10, inferior_registers.r_cs); - RF (11, inferior_registers.r_ss); - RF (12, inferior_registers.r_ds); - RF (13, inferior_registers.r_es); - RF (14, inferior_registers.r_fs); - RF (15, inferior_registers.r_gs); - - RF (FP0_REGNUM, inferior_fp_registers.regs[0]); - RF (FP0_REGNUM + 1, inferior_fp_registers.regs[1]); - RF (FP0_REGNUM + 2, inferior_fp_registers.regs[2]); - RF (FP0_REGNUM + 3, inferior_fp_registers.regs[3]); - RF (FP0_REGNUM + 4, inferior_fp_registers.regs[4]); - RF (FP0_REGNUM + 5, inferior_fp_registers.regs[5]); - RF (FP0_REGNUM + 6, inferior_fp_registers.regs[6]); - RF (FP0_REGNUM + 7, inferior_fp_registers.regs[7]); - - RF (FCTRL_REGNUM, inferior_fp_registers.control); - RF (FSTAT_REGNUM, inferior_fp_registers.status); - RF (FTAG_REGNUM, inferior_fp_registers.tag); - RF (FCS_REGNUM, inferior_fp_registers.code_seg); - RF (FCOFF_REGNUM, inferior_fp_registers.eip); - RF (FDS_REGNUM, inferior_fp_registers.operand_seg); - RF (FDOFF_REGNUM, inferior_fp_registers.operand); - RF (FOP_REGNUM, inferior_fp_registers.opcode); -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int ignored) -{ - struct reg inferior_registers; - struct env387 inferior_fp_registers; - - RS ( 0, inferior_registers.r_eax); - RS ( 1, inferior_registers.r_ecx); - RS ( 2, inferior_registers.r_edx); - RS ( 3, inferior_registers.r_ebx); - RS ( 4, inferior_registers.r_esp); - RS ( 5, inferior_registers.r_ebp); - RS ( 6, inferior_registers.r_esi); - RS ( 7, inferior_registers.r_edi); - RS ( 8, inferior_registers.r_eip); - RS ( 9, inferior_registers.r_eflags); - RS (10, inferior_registers.r_cs); - RS (11, inferior_registers.r_ss); - RS (12, inferior_registers.r_ds); - RS (13, inferior_registers.r_es); - RS (14, inferior_registers.r_fs); - RS (15, inferior_registers.r_gs); - - RS (FP0_REGNUM, inferior_fp_registers.regs[0]); - RS (FP0_REGNUM + 1, inferior_fp_registers.regs[1]); - RS (FP0_REGNUM + 2, inferior_fp_registers.regs[2]); - RS (FP0_REGNUM + 3, inferior_fp_registers.regs[3]); - RS (FP0_REGNUM + 4, inferior_fp_registers.regs[4]); - RS (FP0_REGNUM + 5, inferior_fp_registers.regs[5]); - RS (FP0_REGNUM + 6, inferior_fp_registers.regs[6]); - RS (FP0_REGNUM + 7, inferior_fp_registers.regs[7]); - - RS (FCTRL_REGNUM, inferior_fp_registers.control); - RS (FSTAT_REGNUM, inferior_fp_registers.status); - RS (FTAG_REGNUM, inferior_fp_registers.tag); - RS (FCS_REGNUM, inferior_fp_registers.code_seg); - RS (FCOFF_REGNUM, inferior_fp_registers.eip); - RS (FDS_REGNUM, inferior_fp_registers.operand_seg); - RS (FDOFF_REGNUM, inferior_fp_registers.operand); - RS (FOP_REGNUM, inferior_fp_registers.opcode); - - ptrace (PT_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_registers, 0); - ptrace (PT_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); -} -#endif /* !__i386__ */ - -#ifdef __m68k__ -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int regno) -{ - struct reg inferior_registers; - struct fpreg inferior_fp_registers; - - ptrace (PT_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers, - sizeof (inferior_registers)); - - ptrace (PT_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); - memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, - sizeof (inferior_fp_registers)); -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int regno) -{ - struct reg inferior_registers; - struct fpreg inferior_fp_registers; - - memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)], - sizeof (inferior_registers)); - ptrace (PT_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - - memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], - sizeof (inferior_fp_registers)); - ptrace (PT_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); -} -#endif /* !__m68k__ */ - - -#ifdef __ns32k__ -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int regno) -{ - struct reg inferior_registers; - struct fpreg inferior_fpregisters; - - ptrace (PT_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - ptrace (PT_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fpregisters, 0); - - RF (R0_REGNUM + 0, inferior_registers.r_r0); - RF (R0_REGNUM + 1, inferior_registers.r_r1); - RF (R0_REGNUM + 2, inferior_registers.r_r2); - RF (R0_REGNUM + 3, inferior_registers.r_r3); - RF (R0_REGNUM + 4, inferior_registers.r_r4); - RF (R0_REGNUM + 5, inferior_registers.r_r5); - RF (R0_REGNUM + 6, inferior_registers.r_r6); - RF (R0_REGNUM + 7, inferior_registers.r_r7); - - RF (SP_REGNUM, inferior_registers.r_sp); - RF (DEPRECATED_FP_REGNUM, inferior_registers.r_fp); - RF (PC_REGNUM, inferior_registers.r_pc); - RF (PS_REGNUM, inferior_registers.r_psr); - - RF (FPS_REGNUM, inferior_fpregisters.r_fsr); - RF (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]); - RF (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]); - RF (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]); - RF (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]); - RF (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]); - RF (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]); - RF (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]); - RF (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]); -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int regno) -{ - struct reg inferior_registers; - struct fpreg inferior_fpregisters; - - RS (R0_REGNUM + 0, inferior_registers.r_r0); - RS (R0_REGNUM + 1, inferior_registers.r_r1); - RS (R0_REGNUM + 2, inferior_registers.r_r2); - RS (R0_REGNUM + 3, inferior_registers.r_r3); - RS (R0_REGNUM + 4, inferior_registers.r_r4); - RS (R0_REGNUM + 5, inferior_registers.r_r5); - RS (R0_REGNUM + 6, inferior_registers.r_r6); - RS (R0_REGNUM + 7, inferior_registers.r_r7); - - RS (SP_REGNUM, inferior_registers.r_sp); - RS (DEPRECATED_FP_REGNUM, inferior_registers.r_fp); - RS (PC_REGNUM, inferior_registers.r_pc); - RS (PS_REGNUM, inferior_registers.r_psr); - - RS (FPS_REGNUM, inferior_fpregisters.r_fsr); - RS (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]); - RS (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]); - RS (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]); - RS (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]); - RS (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]); - RS (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]); - RS (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]); - RS (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]); - - ptrace (PT_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - ptrace (PT_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fpregisters, 0); - -} -#endif /* !__ns32k__ */ - -#ifdef __powerpc__ -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int regno) -{ - struct reg inferior_registers; -#ifdef PT_GETFPREGS - struct fpreg inferior_fp_registers; -#endif - int i; - - ptrace (PT_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - for (i = 0; i < 32; i++) - RF (i, inferior_registers.fixreg[i]); - RF (PPC_LR_REGNUM, inferior_registers.lr); - RF (PPC_CR_REGNUM, inferior_registers.cr); - RF (PPC_XER_REGNUM, inferior_registers.xer); - RF (PPC_CTR_REGNUM, inferior_registers.ctr); - RF (PC_REGNUM, inferior_registers.pc); - -#ifdef PT_GETFPREGS - ptrace (PT_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); - for (i = 0; i < 32; i++) - RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); -#endif -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int regno) -{ - struct reg inferior_registers; -#ifdef PT_SETFPREGS - struct fpreg inferior_fp_registers; -#endif - int i; - - for (i = 0; i < 32; i++) - RS (i, inferior_registers.fixreg[i]); - RS (PPC_LR_REGNUM, inferior_registers.lr); - RS (PPC_CR_REGNUM, inferior_registers.cr); - RS (PPC_XER_REGNUM, inferior_registers.xer); - RS (PPC_CTR_REGNUM, inferior_registers.ctr); - RS (PC_REGNUM, inferior_registers.pc); - ptrace (PT_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - -#ifdef PT_SETFPREGS - for (i = 0; i < 32; i++) - RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); - ptrace (PT_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); -#endif -} -#endif /* !__powerpc__ */ - -/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory - in the NEW_SUN_PTRACE case. - It ought to be straightforward. But it appears that writing did - not write the data that I specified. I cannot understand where - it got the data that it actually did write. */ - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -void -read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - buffer[i] = ptrace (PT_READ_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, 0); - } - - /* Copy appropriate bytes out of the buffer. */ - memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - extern int errno; - - /* Fill start and end extra bytes of buffer with existing memory data. */ - - buffer[0] = ptrace (PT_READ_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, 0); - - if (count > 1) - { - buffer[count - 1] - = ptrace (PT_READ_D, inferior_pid, - (PTRACE_ARG3_TYPE) addr + (count - 1) * sizeof (int), 0); - } - - /* Copy data to be written over corresponding part of buffer */ - - memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); - - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - ptrace (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, buffer[i]); - if (errno) - return errno; - } - - return 0; -} - -void -initialize_low (void) -{ - initialize_arch (); -} diff --git a/gdb/gdbserver/low-sim.c b/gdb/gdbserver/low-sim.c deleted file mode 100644 index 86a0406..0000000 --- a/gdb/gdbserver/low-sim.c +++ /dev/null @@ -1,269 +0,0 @@ -/* Low level interface to simulators, for the remote server for GDB. - Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 - Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "server.h" -#include "bfd.h" -#include "callback.h" /* GDB simulator callback interface */ -#include "remote-sim.h" /* GDB simulator interface */ - -extern int remote_debug; - -extern host_callback default_callback; /* in sim/common/callback.c */ - -static char my_registers[REGISTER_BYTES] __attribute__ ((aligned)); -char * registers = my_registers; - -int target_byte_order; /* used by simulator */ - -/* We record the result of sim_open so we can pass it - back to the other sim_foo routines. */ -static SIM_DESC gdbsim_desc = 0; - -/* This version of "load" should be usable for any simulator that - does not support loading itself. */ - -static void -mygeneric_load (bfd *loadfile_bfd) -{ - asection *s; - - for (s = loadfile_bfd->sections; s; s = s->next) - { - if (s->flags & SEC_LOAD) - { - bfd_size_type size; - - size = bfd_get_section_size_before_reloc (s); - if (size > 0) - { - char *buffer; - bfd_vma lma; /* use load address, not virtual address */ - - buffer = xmalloc (size); - lma = s->lma; - - /* Is this really necessary? I guess it gives the user something - to look at during a long download. */ - printf ("Loading section %s, size 0x%lx lma 0x%lx\n", - bfd_get_section_name (loadfile_bfd, s), - (unsigned long) size, - (unsigned long) lma); /* chops high 32 bits. FIXME!! */ - - bfd_get_section_contents (loadfile_bfd, s, buffer, 0, size); - - write_inferior_memory (lma, buffer, size); - free (buffer); - } - } - } - - printf ("Start address 0x%lx\n", - (unsigned long) loadfile_bfd->start_address); - - /* We were doing this in remote-mips.c, I suspect it is right - for other targets too. */ - /* write_pc (loadfile_bfd->start_address); *//* FIXME!! */ -} - -int -create_inferior (char *program, char **argv) -{ - bfd *abfd; - int pid = 0; - char **new_argv; - int nargs; - - abfd = bfd_openr (program, 0); - if (!abfd) - { - fprintf (stderr, "gdbserver: can't open %s: %s\n", - program, bfd_errmsg (bfd_get_error ())); - exit (1); - } - - if (!bfd_check_format (abfd, bfd_object)) - { - fprintf (stderr, "gdbserver: unknown load format for %s: %s\n", - program, bfd_errmsg (bfd_get_error ())); - exit (1); - } - - /* Add "-E big" or "-E little" to the argument list depending on the - endianness of the program to be loaded. */ - for (nargs = 0; argv[nargs] != NULL; nargs++) /* count the args */ - ; - new_argv = alloca (sizeof (char *) * (nargs + 3)); /* allocate new args */ - for (nargs = 0; argv[nargs] != NULL; nargs++) /* copy old to new */ - new_argv[nargs] = argv[nargs]; - new_argv[nargs] = "-E"; - new_argv[nargs + 1] = bfd_big_endian (abfd) ? "big" : "little"; - new_argv[nargs + 2] = NULL; - argv = new_argv; - - /* Create an instance of the simulator. */ - default_callback.init (&default_callback); - gdbsim_desc = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, argv); - if (gdbsim_desc == 0) - exit (1); - - /* Load the program into the simulator. */ - if (abfd) - if (sim_load (gdbsim_desc, program, NULL, 0) == SIM_RC_FAIL) - mygeneric_load (abfd); - - /* Create an inferior process in the simulator. This initializes SP. */ - sim_create_inferior (gdbsim_desc, abfd, argv, /* env */ NULL); - sim_resume (gdbsim_desc, 1, 0); /* execute one instr */ - return pid; -} - -/* Attaching is not supported. */ -int -myattach (int pid) -{ - return -1; -} - -/* Kill the inferior process. Make us have no inferior. */ - -void -kill_inferior (void) -{ - sim_close (gdbsim_desc, 0); - default_callback.shutdown (&default_callback); -} - -/* Fetch one register. */ - -static void -fetch_register (int regno) -{ - sim_fetch_register (gdbsim_desc, regno, ®isters[REGISTER_BYTE (regno)], - REGISTER_RAW_SIZE (regno)); -} - -/* Fetch all registers, or just one, from the child process. */ - -void -fetch_inferior_registers (int regno) -{ - if (regno == -1 || regno == 0) - for (regno = 0; regno < NUM_REGS /*-NUM_FREGS*/ ; regno++) - fetch_register (regno); - else - fetch_register (regno); -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int regno) -{ - if (regno == -1) - { - for (regno = 0; regno < NUM_REGS; regno++) - store_inferior_registers (regno); - } - else - sim_store_register (gdbsim_desc, regno, ®isters[REGISTER_BYTE (regno)], - REGISTER_RAW_SIZE (regno)); -} - -/* Return nonzero if the given thread is still alive. */ -int -mythread_alive (int pid) -{ - return 1; -} - -/* Wait for process, returns status */ - -unsigned char -mywait (char *status) -{ - int sigrc; - enum sim_stop reason; - - sim_stop_reason (gdbsim_desc, &reason, &sigrc); - switch (reason) - { - case sim_exited: - if (remote_debug) - printf ("\nChild exited with retcode = %x \n", sigrc); - *status = 'W'; - return sigrc; - -#if 0 - case sim_stopped: - if (remote_debug) - printf ("\nChild terminated with signal = %x \n", sigrc); - *status = 'X'; - return sigrc; -#endif - - default: /* should this be sim_signalled or sim_stopped? FIXME!! */ - if (remote_debug) - printf ("\nChild received signal = %x \n", sigrc); - fetch_inferior_registers (0); - *status = 'T'; - return (unsigned char) sigrc; - } -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -void -myresume (int step, int signo) -{ - /* Should be using target_signal_to_host() or signal numbers in target.h - to convert GDB signal number to target signal number. */ - sim_resume (gdbsim_desc, step, signo); -} - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -void -read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - sim_read (gdbsim_desc, memaddr, myaddr, len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - sim_write (gdbsim_desc, memaddr, myaddr, len); /* should check for error. FIXME!! */ - return 0; -} - -void -initialize_low (void) -{ -} diff --git a/gdb/gdbserver/low-sparc.c b/gdb/gdbserver/low-sparc.c deleted file mode 100644 index 4b03140..0000000 --- a/gdb/gdbserver/low-sparc.c +++ /dev/null @@ -1,314 +0,0 @@ -/* Low level interface to ptrace, for the remote server for GDB. - Copyright 1986, 1987, 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002 - Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "server.h" -#include <sys/wait.h> -#include "frame.h" -#include "inferior.h" -/*************************** -#include "initialize.h" -****************************/ - -#include <stdio.h> -#include <sys/param.h> -#include <sys/dir.h> -#include <sys/user.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <sgtty.h> -#include <fcntl.h> - -/***************Begin MY defs*********************/ -static char my_registers[REGISTER_BYTES]; -char *registers = my_registers; -/***************End MY defs*********************/ - -#include <sys/ptrace.h> -#include <sys/reg.h> - -extern int sys_nerr; -extern char **sys_errlist; -extern int errno; - -/* Start an inferior process and returns its pid. - ALLARGS is a vector of program-name and args. */ - -int -create_inferior (char *program, char **allargs) -{ - int pid; - - pid = fork (); - if (pid < 0) - perror_with_name ("fork"); - - if (pid == 0) - { - ptrace (PTRACE_TRACEME); - - execv (program, allargs); - - fprintf (stderr, "Cannot exec %s: %s.\n", program, - errno < sys_nerr ? sys_errlist[errno] : "unknown error"); - fflush (stderr); - _exit (0177); - } - - return pid; -} - -/* Attaching is not supported. */ -int -myattach (int pid) -{ - return -1; -} - -/* Kill the inferior process. Make us have no inferior. */ - -void -kill_inferior (void) -{ - if (inferior_pid == 0) - return; - ptrace (8, inferior_pid, 0, 0); - wait (0); -/*************inferior_died ();****VK**************/ -} - -/* Return nonzero if the given thread is still alive. */ -int -mythread_alive (int pid) -{ - return 1; -} - -/* Wait for process, returns status */ - -unsigned char -mywait (char *status) -{ - int pid; - union wait w; - - enable_async_io (); - pid = waitpid (inferior_pid, &w, 0); - disable_async_io (); - if (pid != inferior_pid) - perror_with_name ("wait"); - - if (WIFEXITED (w)) - { - fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w)); - *status = 'W'; - return ((unsigned char) WEXITSTATUS (w)); - } - else if (!WIFSTOPPED (w)) - { - fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w)); - *status = 'X'; - return ((unsigned char) WTERMSIG (w)); - } - - fetch_inferior_registers (0); - - *status = 'T'; - return ((unsigned char) WSTOPSIG (w)); -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -void -myresume (int step, int signal) -{ - errno = 0; - ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal); - if (errno) - perror_with_name ("ptrace"); -} - -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int ignored) -{ - struct regs inferior_registers; - struct fp_status inferior_fp_registers; - int i; - - /* Global and Out regs are fetched directly, as well as the control - registers. If we're getting one of the in or local regs, - and the stack pointer has not yet been fetched, - we have to do that first, since they're found in memory relative - to the stack pointer. */ - - if (ptrace (PTRACE_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0)) - perror ("ptrace_getregs"); - - registers[REGISTER_BYTE (0)] = 0; - memcpy (®isters[REGISTER_BYTE (1)], &inferior_registers.r_g1, - 15 * REGISTER_RAW_SIZE (G0_REGNUM)); - *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; - *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; - *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc; - *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y; - - /* Floating point registers */ - - if (ptrace (PTRACE_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers, - 0)) - perror ("ptrace_getfpregs"); - memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, - sizeof inferior_fp_registers.fpu_fr); - - /* These regs are saved on the stack by the kernel. Only read them - all (16 ptrace calls!) if we really need them. */ - - read_inferior_memory (*(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)], - ®isters[REGISTER_BYTE (L0_REGNUM)], - 16 * REGISTER_RAW_SIZE (L0_REGNUM)); -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int ignored) -{ - struct regs inferior_registers; - struct fp_status inferior_fp_registers; - CORE_ADDR sp = *(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)]; - - write_inferior_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)], - 16 * REGISTER_RAW_SIZE (L0_REGNUM)); - - memcpy (&inferior_registers.r_g1, ®isters[REGISTER_BYTE (G1_REGNUM)], - 15 * REGISTER_RAW_SIZE (G1_REGNUM)); - - inferior_registers.r_ps = - *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)]; - inferior_registers.r_pc = - *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)]; - inferior_registers.r_npc = - *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)]; - inferior_registers.r_y = - *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)]; - - if (ptrace (PTRACE_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers, 0)) - perror ("ptrace_setregs"); - - memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], - sizeof inferior_fp_registers.fpu_fr); - - if (ptrace (PTRACE_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0)) - perror ("ptrace_setfpregs"); -} - -/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory - in the NEW_SUN_PTRACE case. - It ought to be straightforward. But it appears that writing did - not write the data that I specified. I cannot understand where - it got the data that it actually did write. */ - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -void -read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - buffer[i] = ptrace (1, inferior_pid, addr, 0); - } - - /* Copy appropriate bytes out of the buffer. */ - memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - extern int errno; - - /* Fill start and end extra bytes of buffer with existing memory data. */ - - buffer[0] = ptrace (1, inferior_pid, addr, 0); - - if (count > 1) - { - buffer[count - 1] - = ptrace (1, inferior_pid, - addr + (count - 1) * sizeof (int), 0); - } - - /* Copy data to be written over corresponding part of buffer */ - - bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); - - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - ptrace (4, inferior_pid, addr, buffer[i]); - if (errno) - return errno; - } - - return 0; -} - -void -initialize_low (void) -{ -} diff --git a/gdb/gdbserver/low-sun3.c b/gdb/gdbserver/low-sun3.c deleted file mode 100644 index ccaded8..0000000 --- a/gdb/gdbserver/low-sun3.c +++ /dev/null @@ -1,291 +0,0 @@ -/* Low level interface to ptrace, for the remote server for GDB. - Copyright 1986, 1987, 1993, 1994, 1995, 1999, 2000, 2001, 2002 - Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "server.h" -#include "<sys/wait.h>" -#include "frame.h" -#include "inferior.h" - -#include <stdio.h> -#include <sys/param.h> -#include <sys/dir.h> -#include <sys/user.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <sgtty.h> -#include <fcntl.h> - -/***************Begin MY defs*********************/ -static char my_registers[REGISTER_BYTES]; -char *registers = my_registers; -/***************End MY defs*********************/ - -#include <sys/ptrace.h> -#include <machine/reg.h> - -extern int sys_nerr; -extern char **sys_errlist; -extern int errno; - -/* Start an inferior process and returns its pid. - ALLARGS is a vector of program-name and args. */ - -int -create_inferior (char *program, char **allargs) -{ - int pid; - - pid = fork (); - if (pid < 0) - perror_with_name ("fork"); - - if (pid == 0) - { - ptrace (PTRACE_TRACEME); - - execv (program, allargs); - - fprintf (stderr, "Cannot exec %s: %s.\n", program, - errno < sys_nerr ? sys_errlist[errno] : "unknown error"); - fflush (stderr); - _exit (0177); - } - - return pid; -} - -/* Attaching is not supported. */ -int -myattach (int pid) -{ - return -1; -} - -/* Kill the inferior process. Make us have no inferior. */ - -void -kill_inferior (void) -{ - if (inferior_pid == 0) - return; - ptrace (8, inferior_pid, 0, 0); - wait (0); -/*************inferior_died ();****VK**************/ -} - -/* Return nonzero if the given thread is still alive. */ -int -mythread_alive (int pid) -{ - return 1; -} - -/* Wait for process, returns status */ - -unsigned char -mywait (char *status) -{ - int pid; - union wait w; - - pid = wait (&w); - if (pid != inferior_pid) - perror_with_name ("wait"); - - if (WIFEXITED (w)) - { - fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w)); - *status = 'W'; - return ((unsigned char) WEXITSTATUS (w)); - } - else if (!WIFSTOPPED (w)) - { - fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w)); - *status = 'X'; - return ((unsigned char) WTERMSIG (w)); - } - - fetch_inferior_registers (0); - - *status = 'T'; - return ((unsigned char) WSTOPSIG (w)); -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -void -myresume (int step, int signal) -{ - errno = 0; - ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal); - if (errno) - perror_with_name ("ptrace"); -} - -/* Fetch one or more registers from the inferior. REGNO == -1 to get - them all. We actually fetch more than requested, when convenient, - marking them as valid so we won't fetch them again. */ - -void -fetch_inferior_registers (int ignored) -{ - struct regs inferior_registers; - struct fp_status inferior_fp_registers; - - ptrace (PTRACE_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers); -#ifdef FP0_REGNUM - ptrace (PTRACE_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers); -#endif - - memcpy (registers, &inferior_registers, 16 * 4); -#ifdef FP0_REGNUM - memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, - sizeof inferior_fp_registers.fps_regs); -#endif - *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; - *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; -#ifdef FP0_REGNUM - memcpy - (®isters[REGISTER_BYTE (FPC_REGNUM)], - &inferior_fp_registers.fps_control, - sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); -#endif -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ - -void -store_inferior_registers (int ignored) -{ - struct regs inferior_registers; - struct fp_status inferior_fp_registers; - - memcpy (&inferior_registers, registers, 16 * 4); -#ifdef FP0_REGNUM - memcpy (&inferior_fp_registers, - ®isters[REGISTER_BYTE (FP0_REGNUM)], - sizeof inferior_fp_registers.fps_regs); -#endif - inferior_registers.r_ps = *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)]; - inferior_registers.r_pc = *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)]; - -#ifdef FP0_REGNUM - memcpy (&inferior_fp_registers.fps_control, - ®isters[REGISTER_BYTE (FPC_REGNUM)], - (sizeof inferior_fp_registers - - sizeof inferior_fp_registers.fps_regs)); -#endif - - ptrace (PTRACE_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_registers); -#if FP0_REGNUM - ptrace (PTRACE_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) & inferior_fp_registers); -#endif -} - -/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory - in the NEW_SUN_PTRACE case. - It ought to be straightforward. But it appears that writing did - not write the data that I specified. I cannot understand where - it got the data that it actually did write. */ - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -void -read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - buffer[i] = ptrace (1, inferior_pid, addr, 0); - } - - /* Copy appropriate bytes out of the buffer. */ - memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - extern int errno; - - /* Fill start and end extra bytes of buffer with existing memory data. */ - - buffer[0] = ptrace (1, inferior_pid, addr, 0); - - if (count > 1) - { - buffer[count - 1] - = ptrace (1, inferior_pid, - addr + (count - 1) * sizeof (int), 0); - } - - /* Copy data to be written over corresponding part of buffer */ - - memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); - - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - ptrace (4, inferior_pid, addr, buffer[i]); - if (errno) - return errno; - } - - return 0; -} - -void -initialize_low (void) -{ -} |