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* Makefile.in, coff-solib.c, coff-solib.h, i386lynx.mt,

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tm-i386lynx.h:  Add support for SVR3 COFF shared libraries.
This commit is contained in:
Stu Grossman 1993-10-02 23:09:51 +00:00
parent 422a19551f
commit ead291d4c3
7 changed files with 198 additions and 5 deletions
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2
gdb/.Sanitize
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@ -63,6 +63,8 @@ ch-lang.c
ch-lang.h
ch-typeprint.c
ch-valprint.c
coff-solib.c
coff-solib.h
coffread.c
command.c
command.h

5
gdb/ChangeLog
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@ -1,3 +1,8 @@
Sat Oct 2 16:05:22 1993 Stu Grossman (grossman at cygnus.com)
* Makefile.in, coff-solib.c, coff-solib.h, i386lynx.mt,
tm-i386lynx.h: Add support for SVR3 COFF shared libraries.
Sat Oct 2 15:50:41 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
* m88k-nat.c (store_inferior_registers): When writing all registers,

13
gdb/Makefile.in
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@ -387,7 +387,7 @@ POSSLIBS = regex.c regex.h
# Subdirectories of gdb, which should be included in their entirety in
# gdb-xxx.tar.Z:
TARDIRS = doc sparclite
TARDIRS = doc gdbserver sparclite
# {X,T,NAT}DEPFILES are something of a pain in that it's hard to
# default their values the way we do for SER_HARDWIRE; in the future
@ -803,14 +803,15 @@ unexport CHILLFLAGS CHILL_LIB CHILL_FOR_TARGET :
ALLDEPFILES = 29k-share/udi/udip2soc.c 29k-share/udi/udr.c \
a29k-pinsn.c a29k-tdep.c a68v-nat.c altos-xdep.c arm-convert.s \
arm-pinsn.c arm-tdep.c arm-xdep.c convex-pinsn.c convex-tdep.c \
arm-pinsn.c arm-tdep.c arm-xdep.c coff-solib.c convex-pinsn.c
convex-tdep.c \
convex-xdep.c core-svr4.c coredep.c corelow.c dcache.c delta68-nat.c \
dpx2-nat.c exec.c fork-child.c \
go32-xdep.c gould-pinsn.c gould-xdep.c h8300-tdep.c h8500-tdep.c \
hp300ux-nat.c hppa-pinsn.c hppa-tdep.c hppab-nat.c hppah-nat.c \
i386-pinsn.c i386-tdep.c i386b-nat.c i386mach-nat.c i386v-nat.c \
i386aix-nat.c i386v4-nat.c i386lynx-nat.c i387-tdep.c i960-pinsn.c \
i960-tdep.c \
i386aix-nat.c i386v4-nat.c i386lynx-nat.c i386lynx-tdep.c i387-tdep.c \
i960-pinsn.c i960-tdep.c \
infptrace.c inftarg.c irix4-nat.c isi-xdep.c m68k-pinsn.c m68k-tdep.c \
m88k-nat.c m88k-pinsn.c m88k-tdep.c mips-nat.c mips-pinsn.c \
mips-tdep.c news-xdep.c nindy-share/Onindy.c nindy-share/nindy.c \
@ -987,6 +988,8 @@ ch-typeprint.o: ch-typeprint.c ch-lang.h $(defs_h) $(expression_h) \
ch-valprint.o: ch-valprint.c $(defs_h) $(expression_h) $(gdbtypes_h) \
language.h $(symtab_h) valprint.h $(value_h)
coff-solib.o: coff-solib.c $(defs_h)
coffread.o: coffread.c $(bfd_h) $(breakpoint_h) buildsym.h \
complaints.h $(defs_h) $(expression_h) $(gdbtypes_h) objfiles.h \
symfile.h $(symtab_h)
@ -1082,6 +1085,8 @@ hppah-nat.o: hppah-nat.c $(bfd_h) $(defs_h) $(inferior_h) target.h
i386-pinsn.o: i386-pinsn.c $(bfd_h) $(dis-asm_h) $(defs_h)
i386-tdep.o: i386-tdep.c $(defs_h) $(gdbcore_h) $(inferior_h) target.h
i386b-nat.o: i386b-nat.c $(defs_h)
i386lynx-nat.o: i386lynx-nat.c $(defs_h) $(frame_h) $(inferior_h) target.h
i386lynx-tdep.o: i386lynx-tdep.c $(defs_h) $(inferior_h) target.h
i386mach-nat.o: i386mach-nat.c $(defs_h) $(gdbcore_h) $(inferior_h)
i386v-nat.o: i386v-nat.c $(ieee-float_h) $(defs_h) $(gdbcore_h) \

119
gdb/coff-solib.c Normal file
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@ -0,0 +1,119 @@
/* Handle COFF SVR3 shared libraries for GDB, the GNU Debugger.
Copyright 1993 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. */
#include "defs.h"
#include "bfd.h"
#include "gdbcore.h"
#include "symtab.h"
/*
GLOBAL FUNCTION
coff_solib_add -- add a shared library files to the symtab list. We
examine the `.lib' section of the exec file and determine the names of
the shared libraries.
This function is responsible for discovering those names and
addresses, and saving sufficient information about them to allow
their symbols to be read at a later time.
SYNOPSIS
void coff_solib_add (char *arg_string, int from_tty,
struct target_ops *target)
DESCRIPTION
*/
void
coff_solib_add (arg_string, from_tty, target)
char *arg_string;
int from_tty;
struct target_ops *target;
{
asection *libsect;
libsect = bfd_get_section_by_name (exec_bfd, ".lib");
if (libsect)
{
int libsize;
unsigned char *lib;
struct libent
{
long len;
long unk;
char filename[1];
};
libsize = bfd_section_size (exec_bfd, libsect);
lib = alloca (libsize);
bfd_get_section_contents (exec_bfd, libsect, lib, 0, libsize);
while (libsize > 0)
{
struct libent *ent;
struct objfile *objfile;
ent = (struct libent *)lib;
if (ent->len <= 0)
break;
objfile = symbol_file_add (ent->filename, from_tty,
0, /* addr */
0, /* not mainline */
0, /* not mapped */
0); /* Not readnow */
libsize -= ent->len * 4;
lib += ent->len * 4;
}
}
}
/*
GLOBAL FUNCTION
coff_solib_create_inferior_hook -- shared library startup support
SYNOPSIS
void coff_solib_create_inferior_hook()
DESCRIPTION
When gdb starts up the inferior, the kernel maps in the shared
libraries. We get here with the target stopped at it's first
instruction, and the libraries already mapped. At this point, this
function gets called via expansion of the macro
SOLIB_CREATE_INFERIOR_HOOK.
*/
void
coff_solib_create_inferior_hook()
{
coff_solib_add ((char *) 0, 0, (struct target_ops *) 0);
}

60
gdb/coff-solib.h Normal file
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@ -0,0 +1,60 @@
/* COFF (SVR3) Shared library declarations for GDB, the GNU Debugger.
Copyright (C) 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. */
#ifdef __STDC__ /* Forward decl's for prototypes */
struct target_ops;
#endif
/* Called when we free all symtabs, to free the shared library information
as well. */
#if 0
#define CLEAR_SOLIB coff_clear_solib
extern void
coff_clear_solib PARAMS ((void));
#endif
/* Called to add symbols from a shared library to gdb's symbol table. */
#define SOLIB_ADD(filename, from_tty, targ) \
coff_solib_add (filename, from_tty, targ)
extern void
coff_solib_add PARAMS ((char *, int, struct target_ops *));
/* Function to be called when the inferior starts up, to discover the names
of shared libraries that are dynamically linked, the base addresses to
which they are linked, and sufficient information to read in their symbols
at a later time. */
#define SOLIB_CREATE_INFERIOR_HOOK(PID) coff_solib_create_inferior_hook()
extern void
coff_solib_create_inferior_hook PARAMS((void)); /* solib.c */
/* If we can't set a breakpoint, and it's in a shared library, just
disable it. */
#if 0
#define DISABLE_UNSETTABLE_BREAK(addr) coff_solib_address(addr)
extern int
solib_address PARAMS ((CORE_ADDR)); /* solib.c */
#endif

2
gdb/config/i386/i386lynx.mt
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@ -1,3 +1,3 @@
# Target: Intel 386 running Lynx
TDEPFILES= exec.o i386-tdep.o i386-pinsn.o i386lynx-tdep.o
TDEPFILES= exec.o coff-solib.o i386-tdep.o i386-pinsn.o i386lynx-tdep.o
TM_FILE= tm-i386lynx.h

2
gdb/config/i386/tm-i386lynx.h
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@ -31,4 +31,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define SAVED_PC_AFTER_CALL i386lynx_saved_pc_after_call
CORE_ADDR i386lynx_saved_pc_after_call ();
#include "coff-solib.h" /* COFF shared library support */
#endif /* TM_I386LYNX_H */