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hppa native support

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This commit is contained in:
K. Richard Pixley
1992-10-21 04:57:35 +00:00
parent 6142210d1d
commit ca0487229b
16 changed files with 875 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
gdb/.Sanitize
View File

@ -98,10 +98,10 @@ h8300-tdep.c
hp300ux-xdep.c
hppa-pinsn.c
hppab-core.c
hppab-nat.c
hppab-tdep.c
hppab-xdep.c
hppah-nat.c
hppah-tdep.c
hppah-xdep.c
i386-pinsn.c
i386-stub.c
i386-tdep.c
@ -145,6 +145,8 @@ news-xdep.c
nindy-share
nindy-tdep.c
nm-delta88.h
nm-hppab.h
nm-hppah.h
nm-i386bsd.h
nm-i386mach.h
nm-i386v.h

16
gdb/ChangeLog
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@ -1,3 +1,19 @@
Tue Oct 20 21:32:18 1992 K. Richard Pixley (rich@sendai.cygnus.com)
hppa native support (untested).
* config/hppahpux.mh, config/hppabsd.mh (XDEPFILES): now empty.
(NAT_FILE, NATDEPFILES): new macros.
* config/hppabsd.mt (TDEPFILES): removed exec.o and hppab-core.o.
* config/hppahpux.mt (TDEPFILES): removed exec.o.
* xm-hppa[bh].h (REGISTER_U_ADDR, U_REGS_OFFSET): removed.
* nm-hppa[bh].h, hppa[bh]-nat.c: new files.
* hppa[bh]-xdep.c: removed.
* hppa[bh]h-tdep.c: do not include ptrace.h.
* Makefile.in (HFILES): added nm-hppa[bh].h.
* doc/gdbint.texinfo: add PUSH_DUMMY_FRAME, POP_FRAME.
Tue Oct 20 00:01:46 1992 Stu Grossman (grossman at cygnus.com)
* mips-nat.c: Straighten out include files. Work around

3
gdb/Makefile.in
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@ -255,7 +255,8 @@ HFILES= breakpoint.h buildsym.h call-cmds.h command.h defs.h \
xm-m68k.h xm-sparc.h xm-sysv4.h xm-vax.h \
nm-i386bsd.h nm-i386mach.h nm-i386v.h nm-i386v4.h nm-irix3.h \
nm-irix4.h nm-linux.h nm-m88k.h nm-mips.h nm-news.h nm-rs6000.h \
nm-sun2.h nm-sun3.h nm-sun386.h nm-sun4os4.h nm-trash.h nm-ultra3.h
nm-sun2.h nm-sun3.h nm-sun386.h nm-sun4os4.h nm-trash.h \
nm-ultra3.h nm-hppab.h nm-hppah.h
REMOTE_EXAMPLES = m68k-stub.c i386-stub.c sparc-stub.c rem-multi.shar

4
gdb/config/hppabsd.mh
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@ -1,3 +1,5 @@
# Host: Hewlett-Packard PA-RISC machine, running BSD
XDEPFILES= hppab-xdep.o coredep.o corelow.o
XDEPFILES=
XM_FILE= xm-hppab.h
NAT_FILE= nm-hppab.h
NATDEPFILES= hppab-nat.o coredep.o corelow.o exec.o hppab-core.o

2
gdb/config/hppabsd.mt
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@ -1,4 +1,4 @@
# TARGET: HP PA-RISC running bsd
TDEPFILES= hppa-pinsn.o hppab-tdep.o exec.o hppab-core.o
TDEPFILES= hppa-pinsn.o hppab-tdep.o
TM_FILE= tm-hppab.h

4
gdb/config/hppahpux.mh
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@ -1,6 +1,8 @@
# Host: Hewlett-Packard PA-RISC machine, running HPUX
TERMCAP = -lcurses
XDEPFILES= hppah-xdep.o coredep.o corelow.o
XDEPFILES=
XM_FILE= xm-hppah.h
NAT_FILE= nm-hppah.h
NATDEPFILES= exec.o coredep.o corelow.o
REGEX=regex.o
REGEX1=regex.o

2
gdb/config/hppahpux.mt
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@ -1,3 +1,3 @@
# TARGET: HP PA-RISC running hpux
TDEPFILES= hppa-pinsn.o hppah-tdep.o exec.o
TDEPFILES= hppa-pinsn.o hppah-tdep.o
TM_FILE= tm-hppah.h

4
gdb/doc/gdbint.texinfo
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@ -1582,6 +1582,10 @@ system. These macros and their meanings are:
Eliminate host conditionals from this list as they are identified.}
@table @code
@item PUSH_DUMMY_FRAME
Used in @samp{call_function_by_hand} to create an artificial stack frame.
@item POP_FRAME
Used in @samp{call_function_by_hand} to remove an artificial stack frame.
@item ALIGN_SIZE
alloca.c
@item BLOCK_ADDRESS_FUNCTION_RELATIVE

395
gdb/hppab-nat.c Normal file
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@ -0,0 +1,395 @@
/* Machine-dependent hooks for the unix child process stratum. This
code is for the HP PA-RISC cpu.
Copyright 1986, 1987, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Contributed by the Center for Software Science at the
University of Utah (pa-gdb-bugs@cs.utah.edu).
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include "inferior.h"
#ifndef PT_ATTACH
#define PT_ATTACH PTRACE_ATTACH
#endif
#ifndef PT_DETACH
#define PT_DETACH PTRACE_DETACH
#endif
/* This function simply calls ptrace with the given arguments.
It exists so that all calls to ptrace are isolated in this
machine-dependent file. */
#ifdef WANT_NATIVE_TARGET
int
call_ptrace (request, pid, addr, data)
int request, pid;
PTRACE_ARG3_TYPE addr;
int data;
{
return ptrace (request, pid, addr, data);
}
#endif /* WANT_NATIVE_TARGET */
#ifdef DEBUG_PTRACE
/* For the rest of the file, use an extra level of indirection */
/* This lets us breakpoint usefully on call_ptrace. */
#define ptrace call_ptrace
#endif
void
kill_inferior ()
{
if (inferior_pid == 0)
return;
ptrace (PT_KILL, inferior_pid, (PTRACE_ARG3_TYPE) 0, 0);
wait ((int *)0);
target_mourn_inferior ();
}
#ifdef ATTACH_DETACH
/* Nonzero if we are debugging an attached process rather than
an inferior. */
extern int attach_flag;
/* Start debugging the process whose number is PID. */
int
attach (pid)
int pid;
{
errno = 0;
ptrace (PT_ATTACH, pid, (PTRACE_ARG3_TYPE) 0, 0);
if (errno)
perror_with_name ("ptrace");
attach_flag = 1;
return pid;
}
/* Stop debugging the process whose number is PID
and continue it with signal number SIGNAL.
SIGNAL = 0 means just continue it. */
void
detach (signal)
int signal;
{
errno = 0;
ptrace (PT_DETACH, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
if (errno)
perror_with_name ("ptrace");
attach_flag = 0;
}
#endif /* ATTACH_DETACH */
#if !defined (FETCH_INFERIOR_REGISTERS)
/* KERNEL_U_ADDR is the amount to subtract from u.u_ar0
to get the offset in the core file of the register values. */
#if defined (KERNEL_U_ADDR_BSD)
/* Get kernel_u_addr using BSD-style nlist(). */
CORE_ADDR kernel_u_addr;
#include <a.out.gnu.h> /* For struct nlist */
void
_initialize_kernel_u_addr ()
{
struct nlist names[2];
names[0].n_un.n_name = "_u";
names[1].n_un.n_name = NULL;
if (nlist ("/vmunix", names) == 0)
kernel_u_addr = names[0].n_value;
else
fatal ("Unable to get kernel u area address.");
}
#endif /* KERNEL_U_ADDR_BSD. */
#if defined (KERNEL_U_ADDR_HPUX)
/* Get kernel_u_addr using HPUX-style nlist(). */
CORE_ADDR kernel_u_addr;
struct hpnlist {
char * n_name;
long n_value;
unsigned char n_type;
unsigned char n_length;
short n_almod;
short n_unused;
};
static struct hpnlist nl[] = {{ "_u", -1, }, { (char *) 0, }};
/* read the value of the u area from the hp-ux kernel */
void _initialize_kernel_u_addr ()
{
struct user u;
nlist ("/hp-ux", &nl);
kernel_u_addr = nl[0].n_value;
}
#endif /* KERNEL_U_ADDR_HPUX. */
#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
/* Registers we shouldn't try to fetch. */
#if !defined (CANNOT_FETCH_REGISTER)
#define CANNOT_FETCH_REGISTER(regno) 0
#endif
/* Fetch one register. */
static void
fetch_register (regno)
int regno;
{
register unsigned int regaddr;
char buf[MAX_REGISTER_RAW_SIZE];
char mess[128]; /* For messages */
register int i;
/* Offset of registers within the u area. */
unsigned int offset;
if (CANNOT_FETCH_REGISTER (regno))
{
bzero (buf, REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
supply_register (regno, buf);
return;
}
offset = U_REGS_OFFSET;
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
errno = 0;
*(int *) &buf[i] = ptrace (PT_RUREGS, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, 0);
regaddr += sizeof (int);
if (errno != 0)
{
sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno);
perror_with_name (mess);
}
}
supply_register (regno, buf);
}
#endif /* !defined (FETCH_INFERIOR_REGISTERS). */
/* Fetch all registers, or just one, from the child process. */
#ifndef FETCH_INFERIOR_REGISTERS
void
fetch_inferior_registers (regno)
int regno;
{
if (regno == -1)
for (regno = 0; regno < NUM_REGS; regno++)
fetch_register (regno);
else
fetch_register (regno);
}
/* Registers we shouldn't try to store. */
#if !defined (CANNOT_STORE_REGISTER)
#define CANNOT_STORE_REGISTER(regno) 0
#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 (regno)
int regno;
{
register unsigned int regaddr;
char buf[80];
extern char registers[];
register int i;
unsigned int offset = U_REGS_OFFSET;
if (regno >= 0)
{
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
{
errno = 0;
ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) &registers[REGISTER_BYTE (regno) + i]);
if (errno != 0)
{
sprintf (buf, "writing register number %d(%d)", regno, i);
perror_with_name (buf);
}
regaddr += sizeof(int);
}
}
else
{
for (regno = 0; regno < NUM_REGS; regno++)
{
if (CANNOT_STORE_REGISTER (regno))
continue;
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
{
errno = 0;
ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) &registers[REGISTER_BYTE (regno) + i]);
if (errno != 0)
{
sprintf (buf, "writing register number %d(%d)", regno, i);
perror_with_name (buf);
}
regaddr += sizeof(int);
}
}
}
return;
}
#endif /* !defined(FETCH_INFERIOR_REGISTERS) */
/* Resume execution of the inferior process.
If STEP is nonzero, single-step it.
If SIGNAL is nonzero, give it that signal. */
void
child_resume (step, signal)
int step;
int signal;
{
errno = 0;
/* An address of (PTRACE_ARG3_TYPE) 1 tells ptrace to continue from where
it was. (If GDB wanted it to start some other way, we have already
written a new PC value to the child.) */
if (step)
ptrace (PT_STEP, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
else
ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
if (errno)
perror_with_name ("ptrace");
}
/* 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 to or from inferior's memory starting at MEMADDR
to debugger memory starting at MYADDR. Copy to inferior if
WRITE is nonzero.
Returns the length copied, which is either the LEN argument or zero.
This xfer function does not do partial moves, since child_ops
doesn't allow memory operations to cross below us in the target stack
anyway. */
int
child_xfer_memory (memaddr, myaddr, len, write, target)
CORE_ADDR memaddr;
char *myaddr;
int len;
int write;
struct target_ops *target; /* ignored */
{
register int i;
/* Round starting address down to longword boundary. */
register CORE_ADDR addr = memaddr & - 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));
if (write)
{
/* Fill start and end extra bytes of buffer with existing memory data. */
if (addr != memaddr || len < (int)sizeof (int)) {
/* Need part of initial word -- fetch it. */
buffer[0] = ptrace (PT_READ_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
0);
}
if (count > 1) /* FIXME, avoid if even boundary */
{
buffer[count - 1]
= ptrace (PT_READ_I, inferior_pid,
(PTRACE_ARG3_TYPE) (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 (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr,
buffer[i]);
if (errno)
{
/* Using the appropriate one (I or D) is necessary for
Gould NP1, at least. */
errno = 0;
ptrace (PT_WRITE_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
buffer[i]);
}
if (errno)
return 0;
}
}
else
{
/* Read all the longwords */
for (i = 0; i < count; i++, addr += sizeof (int))
{
errno = 0;
buffer[i] = ptrace (PT_READ_I, inferior_pid,
(PTRACE_ARG3_TYPE) addr, 0);
if (errno)
return 0;
QUIT;
}
/* Copy appropriate bytes out of the buffer. */
bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
}
return len;
}

1
gdb/hppab-tdep.c
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@ -50,7 +50,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*#include <sys/user.h> After a.out.h */
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/ptrace.h>
#include <machine/psl.h>
#ifdef KERNELDEBUG

397
gdb/hppah-nat.c Normal file
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@ -0,0 +1,397 @@
/* Machine-dependent hooks for the unix child process stratum. This
code is for the HP PA-RISC cpu.
Copyright 1986, 1987, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Contributed by the Center for Software Science at the
University of Utah (pa-gdb-bugs@cs.utah.edu).
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include "inferior.h"
#ifndef PT_ATTACH
#define PT_ATTACH PTRACE_ATTACH
#endif
#ifndef PT_DETACH
#define PT_DETACH PTRACE_DETACH
#endif
/* This function simply calls ptrace with the given arguments.
It exists so that all calls to ptrace are isolated in this
machine-dependent file. */
#ifdef WANT_NATIVE_TARGET
int
call_ptrace (request, pid, addr, data)
int request, pid;
PTRACE_ARG3_TYPE addr;
int data;
{
return ptrace (request, pid, addr, data, 0);
}
#endif /* WANT_NATIVE_TARGET */
#ifdef DEBUG_PTRACE
/* For the rest of the file, use an extra level of indirection */
/* This lets us breakpoint usefully on call_ptrace. */
#define ptrace call_ptrace
#endif
void
kill_inferior ()
{
if (inferior_pid == 0)
return;
ptrace (PT_EXIT, inferior_pid, (PTRACE_ARG3_TYPE) 0, 0, 0); /* PT_EXIT = PT_KILL ? */
wait ((int *)0);
target_mourn_inferior ();
}
#ifdef ATTACH_DETACH
/* Nonzero if we are debugging an attached process rather than
an inferior. */
extern int attach_flag;
/* Start debugging the process whose number is PID. */
int
attach (pid)
int pid;
{
errno = 0;
ptrace (PT_ATTACH, pid, (PTRACE_ARG3_TYPE) 0, 0, 0);
if (errno)
perror_with_name ("ptrace");
attach_flag = 1;
return pid;
}
/* Stop debugging the process whose number is PID
and continue it with signal number SIGNAL.
SIGNAL = 0 means just continue it. */
void
detach (signal)
int signal;
{
errno = 0;
ptrace (PT_DETACH, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
if (errno)
perror_with_name ("ptrace");
attach_flag = 0;
}
#endif /* ATTACH_DETACH */
/* Fetch all registers, or just one, from the child process. */
void
fetch_inferior_registers (regno)
int regno;
{
if (regno == -1)
for (regno = 0; regno < NUM_REGS; regno++)
fetch_register (regno);
else
fetch_register (regno);
}
/* Registers we shouldn't try to store. */
#if !defined (CANNOT_STORE_REGISTER)
#define CANNOT_STORE_REGISTER(regno) 0
#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 (regno)
int regno;
{
register unsigned int regaddr;
char buf[80];
extern char registers[];
register int i;
unsigned int offset = U_REGS_OFFSET;
if (regno >= 0)
{
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
{
errno = 0;
ptrace (PT_WUAREA, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) &registers[REGISTER_BYTE (regno) + i], 0);
if (errno != 0)
{
sprintf (buf, "writing register number %d(%d)", regno, i);
perror_with_name (buf);
}
regaddr += sizeof(int);
}
}
else
{
for (regno = 0; regno < NUM_REGS; regno++)
{
if (CANNOT_STORE_REGISTER (regno))
continue;
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
{
errno = 0;
ptrace (PT_WUAREA, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) &registers[REGISTER_BYTE (regno) + i], 0);
if (errno != 0)
{
sprintf (buf, "writing register number %d(%d)", regno, i);
perror_with_name (buf);
}
regaddr += sizeof(int);
}
}
}
return;
}
/* KERNEL_U_ADDR is the amount to subtract from u.u_ar0
to get the offset in the core file of the register values. */
#if defined (KERNEL_U_ADDR_BSD)
/* Get kernel_u_addr using BSD-style nlist(). */
CORE_ADDR kernel_u_addr;
#include <a.out.gnu.h> /* For struct nlist */
void
_initialize_kernel_u_addr ()
{
struct nlist names[2];
names[0].n_un.n_name = "_u";
names[1].n_un.n_name = NULL;
if (nlist ("/vmunix", names) == 0)
kernel_u_addr = names[0].n_value;
else
fatal ("Unable to get kernel u area address.");
}
#endif /* KERNEL_U_ADDR_BSD. */
#if defined (KERNEL_U_ADDR_HPUX)
/* Get kernel_u_addr using HPUX-style nlist(). */
CORE_ADDR kernel_u_addr;
struct hpnlist {
char * n_name;
long n_value;
unsigned char n_type;
unsigned char n_length;
short n_almod;
short n_unused;
};
static struct hpnlist nl[] = {{ "_u", -1, }, { (char *) 0, }};
/* read the value of the u area from the hp-ux kernel */
void _initialize_kernel_u_addr ()
{
struct user u;
nlist ("/hp-ux", &nl);
kernel_u_addr = nl[0].n_value;
}
#endif /* KERNEL_U_ADDR_HPUX. */
#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, 0) \
- KERNEL_U_ADDR
#endif
/* Registers we shouldn't try to fetch. */
#if !defined (CANNOT_FETCH_REGISTER)
#define CANNOT_FETCH_REGISTER(regno) 0
#endif
/* Fetch one register. */
static void
fetch_register (regno)
int regno;
{
register unsigned int regaddr;
char buf[MAX_REGISTER_RAW_SIZE];
char mess[128]; /* For messages */
register int i;
/* Offset of registers within the u area. */
unsigned int offset;
if (CANNOT_FETCH_REGISTER (regno))
{
bzero (buf, REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
supply_register (regno, buf);
return;
}
offset = U_REGS_OFFSET;
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
errno = 0;
*(int *) &buf[i] = ptrace (PT_RUREGS, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, 0, 0);
regaddr += sizeof (int);
if (errno != 0)
{
sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno);
perror_with_name (mess);
}
}
supply_register (regno, buf);
}
/* Resume execution of the inferior process.
If STEP is nonzero, single-step it.
If SIGNAL is nonzero, give it that signal. */
void
child_resume (step, signal)
int step;
int signal;
{
errno = 0;
/* An address of (PTRACE_ARG3_TYPE) 1 tells ptrace to continue from where
it was. (If GDB wanted it to start some other way, we have already
written a new PC value to the child.) */
if (step)
ptrace (PT_SINGLE, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
else
ptrace (PT_CONTIN, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
if (errno)
perror_with_name ("ptrace");
}
/* 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 to or from inferior's memory starting at MEMADDR
to debugger memory starting at MYADDR. Copy to inferior if
WRITE is nonzero.
Returns the length copied, which is either the LEN argument or zero.
This xfer function does not do partial moves, since child_ops
doesn't allow memory operations to cross below us in the target stack
anyway. */
int
child_xfer_memory (memaddr, myaddr, len, write, target)
CORE_ADDR memaddr;
char *myaddr;
int len;
int write;
struct target_ops *target; /* ignored */
{
register int i;
/* Round starting address down to longword boundary. */
register CORE_ADDR addr = memaddr & - 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));
if (write)
{
/* Fill start and end extra bytes of buffer with existing memory data. */
if (addr != memaddr || len < (int)sizeof (int)) {
/* Need part of initial word -- fetch it. */
buffer[0] = ptrace (PT_RIUSER, inferior_pid,
(PTRACE_ARG3_TYPE) addr, 0, 0);
}
if (count > 1) /* FIXME, avoid if even boundary */
{
buffer[count - 1]
= ptrace (PT_RIUSER, inferior_pid,
(PTRACE_ARG3_TYPE) (addr + (count - 1) * sizeof (int)),
0, 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))
{
#if 0
/* The HP-UX kernel crashes if you use PT_WDUSER to write into the text
segment. FIXME -- does it work to write into the data segment using
WIUSER, or do these idiots really expect us to figure out which segment
the address is in, so we can use a separate system call for it??! */
errno = 0;
ptrace (PT_WDUSER, inferior_pid, (PTRACE_ARG3_TYPE) addr,
buffer[i], 0);
if (errno)
#endif
{
/* Using the appropriate one (I or D) is necessary for
Gould NP1, at least. */
errno = 0;
ptrace (PT_WIUSER, inferior_pid, (PTRACE_ARG3_TYPE) addr,
buffer[i], 0);
}
if (errno)
return 0;
}
}
else
{
/* Read all the longwords */
for (i = 0; i < count; i++, addr += sizeof (int))
{
errno = 0;
buffer[i] = ptrace (PT_RIUSER, inferior_pid,
(PTRACE_ARG3_TYPE) addr, 0, 0);
if (errno)
return 0;
QUIT;
}
/* Copy appropriate bytes out of the buffer. */
bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
}
return len;
}

1
gdb/hppah-tdep.c
View File

@ -50,7 +50,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*#include <sys/user.h> After a.out.h */
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/ptrace.h>
#include <machine/psl.h>
#ifdef KERNELDEBUG

25
gdb/nm-hppab.h Normal file
View File

@ -0,0 +1,25 @@
/* HPPA PA-RISC machine native support for BSD, for GDB.
Copyright 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define U_REGS_OFFSET 0
/* What a coincidence! */
#define REGISTER_U_ADDR(addr, blockend, regno) \
{ addr = (int)(blockend) + REGISTER_BYTE (regno);}

24
gdb/nm-hppah.h Normal file
View File

@ -0,0 +1,24 @@
/* Native support for HPPA-RISC machine running HPUX, for GDB.
Copyright 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define U_REGS_OFFSET 0
/* What a coincidence! */
#define REGISTER_U_ADDR(addr, blockend, regno) \
{ addr = (int)(blockend) + REGISTER_BYTE (regno);}

6
gdb/xm-hppab.h
View File

@ -35,12 +35,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define KERNEL_U_ADDR 0
/* What a coincidence! */
#define REGISTER_U_ADDR(addr, blockend, regno) \
{ addr = (int)(blockend) + REGISTER_BYTE (regno);}
#define U_REGS_OFFSET 0
#ifndef SEEK_SET
# define SEEK_SET 0 /* Set file pointer to "offset" */
# define SEEK_CUR 1 /* Set file pointer to current plus "offset" */

6
gdb/xm-hppah.h
View File

@ -41,12 +41,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define KERNEL_U_ADDR 0
/* What a coincidence! */
#define REGISTER_U_ADDR(addr, blockend, regno) \
{ addr = (int)(blockend) + REGISTER_BYTE (regno);}
#define U_REGS_OFFSET 0
/* HP uses non-ANSI definitions, but with void * results. */
#define MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */
extern void *