2000-10-30 Michael Snyder <msnyder@cleaver.cygnus.com>
* config/sh/tm-linux.h: New file. Include generic tm-linux.h, plus tm-sh.h, then define SVR4_FETCH_LINK_MAP_OFFSETS to use the sh target function instead of the default link map offsets. * config/sh/sh.mt: Add solib.o and solib-svr4.o to TDEPFILES. Use sh/tm-linux.h instead of sh/tm-sh.h. * sh-tdep.c (sh_linux_svr4_fetch_link_map_offsets): New function. Construct target-specific link map offsets. * i386-linux-tdep.c (i386_linux_svr4_fetch_link_map_offsets: New function. Construct target-specific link map offsets. * config/i386/tm-linux.h: Use above function instead of default. 2000-10-30 Michael Snyder <msnyder@cleaver.cygnus.com> * config/i386/tm-linux.h: Remove definition of SVR4_SHARED_LIBS, and inclusion of solib.h. Move up into ../tm-linux.h. config/tm-linux.h: Define SVR4_SHARED_LIBS, include solib.h.
This commit is contained in:
Michael Snyder
parent
8637c0456a
commit
1a8629c735
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@ -1,3 +1,22 @@
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2000-10-30 Michael Snyder <msnyder@cleaver.cygnus.com>
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* config/sh/tm-linux.h: New file. Include generic tm-linux.h,
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plus tm-sh.h, then define SVR4_FETCH_LINK_MAP_OFFSETS to use
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the sh target function instead of the default link map offsets.
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* config/sh/sh.mt: Add solib.o and solib-svr4.o to TDEPFILES.
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Use sh/tm-linux.h instead of sh/tm-sh.h.
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* sh-tdep.c (sh_linux_svr4_fetch_link_map_offsets):
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New function. Construct target-specific link map offsets.
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* i386-linux-tdep.c (i386_linux_svr4_fetch_link_map_offsets:
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New function. Construct target-specific link map offsets.
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* config/i386/tm-linux.h: Use above function instead of default.
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2000-10-30 Michael Snyder <msnyder@cleaver.cygnus.com>
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* config/i386/tm-linux.h: Remove definition of SVR4_SHARED_LIBS,
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and inclusion of solib.h. Move up into ../tm-linux.h.
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config/tm-linux.h: Define SVR4_SHARED_LIBS, include solib.h.
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2000-10-30 Kevin Buettner <kevinb@redhat.com>
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* top.c (simplified_command_loop, add_info, add_com,
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@ -30,6 +30,10 @@
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#include "i386/tm-i386.h"
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#include "tm-linux.h"
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/* Use target_specific function to define link map offsets. */
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extern struct link_map_offsets *i386_linux_svr4_fetch_link_map_offsets (void);
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#define SVR4_FETCH_LINK_MAP_OFFSETS() i386_linux_svr4_fetch_link_map_offsets ()
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/* FIXME: kettenis/2000-03-26: We should get rid of this last piece of
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Linux-specific `long double'-support code, probably by adding code
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to valprint.c:print_floating() to recognize various extended
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@ -1,6 +1,6 @@
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# Target: Hitachi Super-H with ICE and simulator
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TDEPFILES= sh-tdep.o monitor.o sh3-rom.o remote-e7000.o ser-e7kpc.o dsrec.o
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TM_FILE= tm-sh.h
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TDEPFILES= sh-tdep.o monitor.o sh3-rom.o remote-e7000.o ser-e7kpc.o dsrec.o solib.o solib-svr4.o
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TM_FILE= tm-linux.h
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SIM_OBS = remote-sim.o
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SIM = ../sim/sh/libsim.a
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@ -0,0 +1,30 @@
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/* Target-specific definitions for Linux running on a Hitachi Super-H.
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Copyright (C) 2000 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Pull in Linux generic defs */
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#include "tm-linux.h"
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/* Pull in sh-target defs */
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#include "sh/tm-sh.h"
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/* Use target_specific function to define link map offsets. */
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extern struct link_map_offsets *sh_linux_svr4_fetch_link_map_offsets (void);
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#define SVR4_FETCH_LINK_MAP_OFFSETS() sh_linux_svr4_fetch_link_map_offsets ()
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@ -34,3 +34,12 @@
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/* We need this file for the SOLIB_TRAMPOLINE stuff. */
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#include "tm-sysv4.h"
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/* We define SVR4_SHARED_LIBS unconditionally, on the assumption that
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link.h is available on all linux platforms. For I386 and SH3/4,
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we hard-code the information rather than use link.h anyway (for
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the benefit of cross-debugging). We may move to doing that for
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other architectures as well. */
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#define SVR4_SHARED_LIBS
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#include "solib.h" /* Support for shared libraries. */
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@ -27,6 +27,7 @@
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#include "symtab.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "solib-svr4.h" /* for struct link_map_offsets */
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/* Recognizing signal handler frames. */
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@ -372,3 +373,45 @@ i386_linux_skip_solib_resolver (CORE_ADDR pc)
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return 0;
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}
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/* Fetch (and possibly build) an appropriate link_map_offsets structure
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for native i386 linux targets using the struct offsets defined in
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link.h (but without actual reference to that file).
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This makes it possible to access i386-linux shared libraries from
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a gdb that was not built on an i386-linux host (for cross debugging).
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*/
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struct link_map_offsets *
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i386_linux_svr4_fetch_link_map_offsets (void)
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{
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static struct link_map_offsets lmo;
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static struct link_map_offsets *lmp = 0;
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if (lmp == 0)
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{
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lmp = &lmo;
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lmo.r_debug_size = 8; /* 20 not actual size but all we need */
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lmo.r_map_offset = 4;
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lmo.r_map_size = 4;
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lmo.link_map_size = 20; /* 552 not actual size but all we need */
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lmo.l_addr_offset = 0;
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lmo.l_addr_size = 4;
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lmo.l_name_offset = 4;
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lmo.l_name_size = 4;
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lmo.l_next_offset = 12;
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lmo.l_next_size = 4;
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lmo.l_prev_offset = 16;
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lmo.l_prev_size = 4;
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}
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return lmp;
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}
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@ -39,6 +39,8 @@
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#include "arch-utils.h"
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#include "floatformat.h"
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#include "solib-svr4.h"
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#undef XMALLOC
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#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
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@ -1798,6 +1800,50 @@ sh_do_registers_info (int regnum, int fpregs)
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}
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}
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#ifdef SVR4_SHARED_LIBS
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/* Fetch (and possibly build) an appropriate link_map_offsets structure
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for native i386 linux targets using the struct offsets defined in
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link.h (but without actual reference to that file).
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This makes it possible to access i386-linux shared libraries from
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a gdb that was not built on an i386-linux host (for cross debugging).
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*/
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struct link_map_offsets *
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sh_linux_svr4_fetch_link_map_offsets (void)
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{
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static struct link_map_offsets lmo;
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static struct link_map_offsets *lmp = 0;
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if (lmp == 0)
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{
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lmp = &lmo;
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lmo.r_debug_size = 8; /* 20 not actual size but all we need */
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lmo.r_map_offset = 4;
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lmo.r_map_size = 4;
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lmo.link_map_size = 20; /* 552 not actual size but all we need */
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lmo.l_addr_offset = 0;
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lmo.l_addr_size = 4;
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lmo.l_name_offset = 4;
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lmo.l_name_size = 4;
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lmo.l_next_offset = 12;
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lmo.l_next_size = 4;
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lmo.l_prev_offset = 16;
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lmo.l_prev_size = 4;
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}
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return lmp;
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}
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#endif /* SVR4_SHARED_LIBS */
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static gdbarch_init_ftype sh_gdbarch_init;
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static struct gdbarch *
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