* Merge gdb/doc/Makefile into binutils/doc/Makefile

* Update build for gdbserver and gdbreplay to work under binutils
* Fix gdbserver to use PT_GETREGS etc to access registers, removing the
  dependancy on the u-area.
* Make gdbserver work on the alpha.
This commit is contained in:
Doug Rabson
1999-05-02 19:50:18 +00:00
parent 3309076f0b
commit e3af075499
5 changed files with 119 additions and 186 deletions
+2 -2
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@@ -1,5 +1,5 @@
#
# $Id: Makefile,v 1.6 1999/05/02 11:38:12 dfr Exp $
# $Id: Makefile,v 1.7 1999/05/02 16:11:43 dfr Exp $
#
SUBDIR= libiberty libbfd libopcodes libbinutils \
@@ -9,7 +9,7 @@ SUBDIR= libiberty libbfd libopcodes libbinutils \
# Maybe should be unconditional but I don't want to get in the
# way of the mips port.
.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "alpha"
SUBDIR+= gdb
SUBDIR+= gdb gdbserver gdbreplay
.endif
.include <bsd.subdir.mk>
+22 -3
View File
@@ -1,18 +1,37 @@
# $Id$
# $Id: Makefile,v 1.1 1998/10/03 03:59:47 jdp Exp $
.include "../Makefile.inc0"
.PATH: ${SRCDIR}/gas/doc ${SRCDIR}/ld ${SRCDIR}/bfd/doc
GDBDIR= ${.CURDIR}/../../../../contrib/gdb
CONTRIBDIR= ${.CURDIR}/../../../../contrib
INFO = as ld
.PATH: ${SRCDIR}/gas/doc ${SRCDIR}/ld ${SRCDIR}/bfd/doc ${GDBDIR}/gdb/doc
INFO = as ld annotate gdb gdbint stabs
INFOSECTION= "Programming & development tools."
INFOENTRY_as= "* As: (as). The GNU assembler."
INFOENTRY_ld= "* Ld: (ld). The GNU linker."
INFOENTRY_annotate= "* GDB annotation: (annotate). Annotations for the GNU Debugger (GDB)."
MAKEINFOFLAGS+= --no-validate
MAKEINFOFLAGS+= -I ${SRCDIR}/gas/doc -I ${SRCDIR}/ld -I ${SRCDIR}/bfd/doc
MAKEINFOFLAGS+= -I ${GDBDIR}/gdb/doc
MAKEINFOFLAGS+= -I ${CONTRIBDIR}/libreadline/doc
CLEANFILES= gdb-cfg.texi inc-hist.texi inc-hist.texi.orig
as.info: as.texinfo asconfig.texi c-i386.texi
ld.info: ld.texinfo bfdsumm.texi
gdb.info: gdb.texinfo gdb-cfg.texi GDBvn.texi remote.texi \
rluser.texinfo inc-hist.texi
gdb-cfg.texi: all-cfg.texi
ln -sf ${.ALLSRC} ${.TARGET}
.PATH: ${CONTRIBDIR}/libreadline/doc
inc-hist.texi: hsuser.texinfo inc-hist.diff
cp ${.ALLSRC:M*.texinfo} ${.TARGET}
patch -b .orig < ${.ALLSRC:M*.diff}
.include <bsd.info.mk>
+8 -4
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@@ -1,16 +1,20 @@
# $Id: Makefile,v 1.2 1997/04/26 17:34:04 pst Exp $
# $Id: Makefile,v 1.3 1998/05/01 14:48:04 bde Exp $
.include "../Makefile.inc0"
GDBDIR= ${.CURDIR}/../../../../contrib/gdb
.PATH: ${GDBDIR}/gdb/gdbserver
.PATH: ${GDBDIR}/gdb
.PATH: ${GDBDIR}/opcodes
PROG= gdbreplay
NOMAN= yes
SRCS= gdbreplay.c
CFLAGS+=-I${.CURDIR}/../gdb -I${.CURDIR}/../bfd
CFLAGS+=-DNO_MMALLOC
CFLAGS+= -I${.CURDIR}/../gdb/${MACHINE_ARCH}
CFLAGS+= -I${GDBDIR}/gdb
CFLAGS+= -I${GDBDIR}/gdb/config
CFLAGS+= -I${GDBDIR}/gdb/gdbserver
CFLAGS+= -DNO_MMALLOC
.include <bsd.prog.mk>
+8 -4
View File
@@ -1,16 +1,20 @@
# $Id: Makefile,v 1.2 1997/04/26 17:34:05 pst Exp $
# $Id: Makefile,v 1.3 1998/05/01 14:48:06 bde Exp $
.include "../Makefile.inc0"
GDBDIR= ${.CURDIR}/../../../../contrib/gdb
.PATH: ${GDBDIR}/gdb/gdbserver
.PATH: ${GDBDIR}/gdb
.PATH: ${GDBDIR}/opcodes
PROG= gdbserver
SRCS= remote-utils.c utils.c server.c
SRCS+= low-fbsd.c
CFLAGS+=-I${.CURDIR}/../gdb -I${.CURDIR}/../bfd
CFLAGS+=-DNO_MMALLOC
CFLAGS+= -I${.CURDIR}/../gdb/${MACHINE_ARCH}
CFLAGS+= -I${GDBDIR}/gdb
CFLAGS+= -I${GDBDIR}/gdb/config
CFLAGS+= -I${GDBDIR}/gdb/gdbserver
CFLAGS+= -DNO_MMALLOC
.include <bsd.prog.mk>
+79 -173
View File
@@ -30,6 +30,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <sys/ioctl.h>
#include <sgtty.h>
#include <fcntl.h>
#include <string.h>
/***************Begin MY defs*********************/
int quit_flag = 0;
@@ -147,126 +148,101 @@ myresume (step, signal)
perror_with_name ("ptrace");
}
#if defined(__i386__)
#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
unsigned int
register_addr (regno, blockend)
int regno;
int blockend;
/* this table must line up with REGISTER_NAMES in tm-i386v.h */
/* symbols like 'tEAX' come from <machine/reg.h> */
static int tregmap[] =
{
int addr;
tEAX, tECX, tEDX, tEBX,
tESP, tEBP, tESI, tEDI,
tEIP, tEFLAGS, tCS, tSS,
tDS, tES, tFS, tGS,
};
if (regno < 0 || regno >= ARCH_NUM_REGS)
error ("Invalid register number %d.", regno);
REGISTER_U_ADDR (addr, blockend, regno);
return addr;
}
/* Fetch one register. */
static void
fetch_register (regno)
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 *) &registers[ regno * sizeof(int) + i] =
ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, 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. */
static struct save87 pcb_savefpu;
void
fetch_inferior_registers (regno)
int regno;
{
if (regno == -1 || regno == 0)
for (regno = 0; regno < NUM_REGS; regno++)
fetch_register (regno);
else
fetch_register (regno);
}
struct reg inferior_registers; /* ptrace order, not gcc/gdb order */
int r;
/* 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). */
ptrace (PT_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
for (r = 0; r < NUM_REGS; r++)
memcpy (&registers[REGISTER_BYTE (r)], ((int *)&inferior_registers) + tregmap[r], 4);
}
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;
int scratch;
struct reg inferior_registers; /* ptrace order, not gcc/gdb order */
int r;
if (regno >= 0)
{
regaddr = register_addr (regno, offset);
errno = 0;
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)
{
/* 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);
ptrace (PT_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
for (r = 0; r < NUM_REGS; r++)
memcpy (((int *)&inferior_registers) + tregmap[r], &registers[REGISTER_BYTE (r)], 4);
ptrace (PT_SETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
}
#elif defined(__alpha__)
void
fetch_inferior_registers (regno)
int regno;
{
struct reg regs; /* ptrace order, not gcc/gdb order */
struct fpreg fpregs;
int r;
ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &regs, 0);
ptrace (PT_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &fpregs, 0);
for (r = 0; r < 31; r++)
memcpy (&registers[REGISTER_BYTE (r)],
&regs.r_regs[r], sizeof(u_int64_t));
for (r = 0; r < 32; r++)
memcpy (&registers[REGISTER_BYTE (r + FP0_REGNUM)],
&fpregs.fpr_regs[r], sizeof(u_int64_t));
memcpy (&registers[REGISTER_BYTE (PC_REGNUM)],
&regs.r_regs[31], sizeof(u_int64_t));
memset (&registers[REGISTER_BYTE (ZERO_REGNUM)], 0, sizeof(u_int64_t));
memset (&registers[REGISTER_BYTE (FP_REGNUM)], 0, sizeof(u_int64_t));
}
void
store_inferior_registers (regno)
int regno;
{
struct reg regs; /* ptrace order, not gcc/gdb order */
struct fpreg fpregs;
int r;
for (r = 0; r < 31; r++)
memcpy (&regs.r_regs[r],
&registers[REGISTER_BYTE (r)], sizeof(u_int64_t));
for (r = 0; r < 32; r++)
memcpy (&fpregs.fpr_regs[r],
&registers[REGISTER_BYTE (r + FP0_REGNUM)], sizeof(u_int64_t));
memcpy (&regs.r_regs[31],
&registers[REGISTER_BYTE (PC_REGNUM)], sizeof(u_int64_t));
ptrace (PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &regs, 0);
ptrace (PT_SETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &fpregs, 0);
}
#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
@@ -361,73 +337,3 @@ have_inferior_p ()
{
return inferior_pid != 0;
}
/* Some systems don't provide all the registers on a trap. Use SS as a
default if so. */
#ifndef tDS
#define tDS tSS
#endif
#ifndef tES
#define tES tSS
#endif
#ifndef tFS
#define tFS tSS
#endif
#ifndef tGS
#define tGS tSS
#endif
/* These tables map between the registers on a trap frame, and the register
order used by the rest of GDB. */
/* this table must line up with REGISTER_NAMES in tm-i386.h */
/* symbols like 'tEAX' come from <machine/reg.h> */
static int tregmap[] =
{
tEAX, tECX, tEDX, tEBX,
tESP, tEBP, tESI, tEDI,
tEIP, tEFLAGS, tCS, tSS,
tDS, tES, tFS, tGS
};
#ifdef sEAX
static int sregmap[] =
{
sEAX, sECX, sEDX, sEBX,
sESP, sEBP, sESI, sEDI,
sEIP, sEFLAGS, sCS, sSS
};
#else /* No sEAX */
/* FreeBSD has decided to collapse the s* and t* symbols. So if the s*
ones aren't around, use the t* ones for sregmap too. */
static int sregmap[] =
{
tEAX, tECX, tEDX, tEBX,
tESP, tEBP, tESI, tEDI,
tEIP, tEFLAGS, tCS, tSS,
tDS, tES, tFS, tGS
};
#endif /* No sEAX */
/* blockend is the value of u.u_ar0, and points to the
place where ES is stored. */
int
i386_register_u_addr (blockend, regnum)
int blockend;
int regnum;
{
/* The following condition is a kludge to get at the proper register map
depending upon the state of pcb_flag.
The proper condition would be
if (u.u_pcb.pcb_flag & FM_TRAP)
but that would require a ptrace call here and wouldn't work
for corefiles. */
if (blockend < 0x1fcc)
return (blockend + 4 * tregmap[regnum]);
else
return (blockend + 4 * sregmap[regnum]);
}