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binutils-gdb/gdb/ppcfbsd-tdep.c

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2013-02-04 Andreas Tobler <andreast@fgznet.ch> * Makefile.in (ALL_TARGET_OBS): Add powerpc FreeBSD files. * configure.host: Add powerpc*-*-freebsd* target. * configure.tgt: Add target info for powerpc*-*-freebsd*. * ppcfbsd-nat.c, ppcfbsd-tdep.h, ppcfbsd-tdep.c: New files. * config/powerpc/fbsd.mh: New file.
2013-02-04 21:48:53 +01:00
/* Target-dependent code for PowerPC systems running FreeBSD.
Update Copyright year range in all files maintained by GDB.
2014-01-01 04:54:24 +01:00
Copyright (C) 2013-2014 Free Software Foundation, Inc.
2013-02-04 Andreas Tobler <andreast@fgznet.ch> * Makefile.in (ALL_TARGET_OBS): Add powerpc FreeBSD files. * configure.host: Add powerpc*-*-freebsd* target. * configure.tgt: Add target info for powerpc*-*-freebsd*. * ppcfbsd-nat.c, ppcfbsd-tdep.h, ppcfbsd-tdep.c: New files. * config/powerpc/fbsd.mh: New file.
2013-02-04 21:48:53 +01:00
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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "frame-unwind.h"
#include "gdbtypes.h"
#include "osabi.h"
#include "regcache.h"
#include "regset.h"
#include "symtab.h"
#include "target.h"
#include "trad-frame.h"
#include "gdb_assert.h"
remove gdb_string.h This removes gdb_string.h. This patch is purely mechanical. I created it by running the two commands: git rm common/gdb_string.h perl -pi -e's/"gdb_string.h"/<string.h>/;' *.[chyl] */*.[chyl] 2013-11-18 Tom Tromey <tromey@redhat.com> * common/gdb_string.h: Remove. * aarch64-tdep.c: Use string.h, not gdb_string.h. * ada-exp.y: Use string.h, not gdb_string.h. * ada-lang.c: Use string.h, not gdb_string.h. * ada-lex.l: Use string.h, not gdb_string.h. * ada-typeprint.c: Use string.h, not gdb_string.h. * ada-valprint.c: Use string.h, not gdb_string.h. * aix-thread.c: Use string.h, not gdb_string.h. * alpha-linux-tdep.c: Use string.h, not gdb_string.h. * alpha-mdebug-tdep.c: Use string.h, not gdb_string.h. * alpha-nat.c: Use string.h, not gdb_string.h. * alpha-osf1-tdep.c: Use string.h, not gdb_string.h. * alpha-tdep.c: Use string.h, not gdb_string.h. * alphanbsd-tdep.c: Use string.h, not gdb_string.h. * amd64-dicos-tdep.c: Use string.h, not gdb_string.h. * amd64-linux-nat.c: Use string.h, not gdb_string.h. * amd64-linux-tdep.c: Use string.h, not gdb_string.h. * amd64-nat.c: Use string.h, not gdb_string.h. * amd64-sol2-tdep.c: Use string.h, not gdb_string.h. * amd64fbsd-tdep.c: Use string.h, not gdb_string.h. * amd64obsd-tdep.c: Use string.h, not gdb_string.h. * arch-utils.c: Use string.h, not gdb_string.h. * arm-linux-nat.c: Use string.h, not gdb_string.h. * arm-linux-tdep.c: Use string.h, not gdb_string.h. * arm-tdep.c: Use string.h, not gdb_string.h. * arm-wince-tdep.c: Use string.h, not gdb_string.h. * armbsd-tdep.c: Use string.h, not gdb_string.h. * armnbsd-nat.c: Use string.h, not gdb_string.h. * armnbsd-tdep.c: Use string.h, not gdb_string.h. * armobsd-tdep.c: Use string.h, not gdb_string.h. * avr-tdep.c: Use string.h, not gdb_string.h. * ax-gdb.c: Use string.h, not gdb_string.h. * ax-general.c: Use string.h, not gdb_string.h. * bcache.c: Use string.h, not gdb_string.h. * bfin-tdep.c: Use string.h, not gdb_string.h. * breakpoint.c: Use string.h, not gdb_string.h. * build-id.c: Use string.h, not gdb_string.h. * buildsym.c: Use string.h, not gdb_string.h. * c-exp.y: Use string.h, not gdb_string.h. * c-lang.c: Use string.h, not gdb_string.h. * c-typeprint.c: Use string.h, not gdb_string.h. * c-valprint.c: Use string.h, not gdb_string.h. * charset.c: Use string.h, not gdb_string.h. * cli-out.c: Use string.h, not gdb_string.h. * cli/cli-cmds.c: Use string.h, not gdb_string.h. * cli/cli-decode.c: Use string.h, not gdb_string.h. * cli/cli-dump.c: Use string.h, not gdb_string.h. * cli/cli-interp.c: Use string.h, not gdb_string.h. * cli/cli-logging.c: Use string.h, not gdb_string.h. * cli/cli-script.c: Use string.h, not gdb_string.h. * cli/cli-setshow.c: Use string.h, not gdb_string.h. * cli/cli-utils.c: Use string.h, not gdb_string.h. * coffread.c: Use string.h, not gdb_string.h. * common/common-utils.c: Use string.h, not gdb_string.h. * common/filestuff.c: Use string.h, not gdb_string.h. * common/linux-procfs.c: Use string.h, not gdb_string.h. * common/linux-ptrace.c: Use string.h, not gdb_string.h. * common/signals.c: Use string.h, not gdb_string.h. * common/vec.h: Use string.h, not gdb_string.h. * core-regset.c: Use string.h, not gdb_string.h. * corefile.c: Use string.h, not gdb_string.h. * corelow.c: Use string.h, not gdb_string.h. * cp-abi.c: Use string.h, not gdb_string.h. * cp-support.c: Use string.h, not gdb_string.h. * cp-valprint.c: Use string.h, not gdb_string.h. * cris-tdep.c: Use string.h, not gdb_string.h. * d-lang.c: Use string.h, not gdb_string.h. * dbxread.c: Use string.h, not gdb_string.h. * dcache.c: Use string.h, not gdb_string.h. * demangle.c: Use string.h, not gdb_string.h. * dicos-tdep.c: Use string.h, not gdb_string.h. * disasm.c: Use string.h, not gdb_string.h. * doublest.c: Use string.h, not gdb_string.h. * dsrec.c: Use string.h, not gdb_string.h. * dummy-frame.c: Use string.h, not gdb_string.h. * dwarf2-frame.c: Use string.h, not gdb_string.h. * dwarf2loc.c: Use string.h, not gdb_string.h. * dwarf2read.c: Use string.h, not gdb_string.h. * elfread.c: Use string.h, not gdb_string.h. * environ.c: Use string.h, not gdb_string.h. * eval.c: Use string.h, not gdb_string.h. * event-loop.c: Use string.h, not gdb_string.h. * exceptions.c: Use string.h, not gdb_string.h. * exec.c: Use string.h, not gdb_string.h. * expprint.c: Use string.h, not gdb_string.h. * f-exp.y: Use string.h, not gdb_string.h. * f-lang.c: Use string.h, not gdb_string.h. * f-typeprint.c: Use string.h, not gdb_string.h. * f-valprint.c: Use string.h, not gdb_string.h. * fbsd-nat.c: Use string.h, not gdb_string.h. * findcmd.c: Use string.h, not gdb_string.h. * findvar.c: Use string.h, not gdb_string.h. * fork-child.c: Use string.h, not gdb_string.h. * frame.c: Use string.h, not gdb_string.h. * frv-linux-tdep.c: Use string.h, not gdb_string.h. * frv-tdep.c: Use string.h, not gdb_string.h. * gdb.c: Use string.h, not gdb_string.h. * gdb_bfd.c: Use string.h, not gdb_string.h. * gdbarch.c: Use string.h, not gdb_string.h. * gdbtypes.c: Use string.h, not gdb_string.h. * gnu-nat.c: Use string.h, not gdb_string.h. * gnu-v2-abi.c: Use string.h, not gdb_string.h. * gnu-v3-abi.c: Use string.h, not gdb_string.h. * go-exp.y: Use string.h, not gdb_string.h. * go-lang.c: Use string.h, not gdb_string.h. * go32-nat.c: Use string.h, not gdb_string.h. * hppa-hpux-tdep.c: Use string.h, not gdb_string.h. * hppa-linux-nat.c: Use string.h, not gdb_string.h. * hppanbsd-tdep.c: Use string.h, not gdb_string.h. * hppaobsd-tdep.c: Use string.h, not gdb_string.h. * i386-cygwin-tdep.c: Use string.h, not gdb_string.h. * i386-dicos-tdep.c: Use string.h, not gdb_string.h. * i386-linux-nat.c: Use string.h, not gdb_string.h. * i386-linux-tdep.c: Use string.h, not gdb_string.h. * i386-nto-tdep.c: Use string.h, not gdb_string.h. * i386-sol2-tdep.c: Use string.h, not gdb_string.h. * i386-tdep.c: Use string.h, not gdb_string.h. * i386bsd-tdep.c: Use string.h, not gdb_string.h. * i386gnu-nat.c: Use string.h, not gdb_string.h. * i386nbsd-tdep.c: Use string.h, not gdb_string.h. * i386obsd-tdep.c: Use string.h, not gdb_string.h. * i387-tdep.c: Use string.h, not gdb_string.h. * ia64-libunwind-tdep.c: Use string.h, not gdb_string.h. * ia64-linux-nat.c: Use string.h, not gdb_string.h. * inf-child.c: Use string.h, not gdb_string.h. * inf-ptrace.c: Use string.h, not gdb_string.h. * inf-ttrace.c: Use string.h, not gdb_string.h. * infcall.c: Use string.h, not gdb_string.h. * infcmd.c: Use string.h, not gdb_string.h. * inflow.c: Use string.h, not gdb_string.h. * infrun.c: Use string.h, not gdb_string.h. * interps.c: Use string.h, not gdb_string.h. * iq2000-tdep.c: Use string.h, not gdb_string.h. * irix5-nat.c: Use string.h, not gdb_string.h. * jv-exp.y: Use string.h, not gdb_string.h. * jv-lang.c: Use string.h, not gdb_string.h. * jv-typeprint.c: Use string.h, not gdb_string.h. * jv-valprint.c: Use string.h, not gdb_string.h. * language.c: Use string.h, not gdb_string.h. * linux-fork.c: Use string.h, not gdb_string.h. * linux-nat.c: Use string.h, not gdb_string.h. * lm32-tdep.c: Use string.h, not gdb_string.h. * m2-exp.y: Use string.h, not gdb_string.h. * m2-typeprint.c: Use string.h, not gdb_string.h. * m32c-tdep.c: Use string.h, not gdb_string.h. * m32r-linux-nat.c: Use string.h, not gdb_string.h. * m32r-linux-tdep.c: Use string.h, not gdb_string.h. * m32r-rom.c: Use string.h, not gdb_string.h. * m32r-tdep.c: Use string.h, not gdb_string.h. * m68hc11-tdep.c: Use string.h, not gdb_string.h. * m68k-tdep.c: Use string.h, not gdb_string.h. * m68kbsd-tdep.c: Use string.h, not gdb_string.h. * m68klinux-nat.c: Use string.h, not gdb_string.h. * m68klinux-tdep.c: Use string.h, not gdb_string.h. * m88k-tdep.c: Use string.h, not gdb_string.h. * macrocmd.c: Use string.h, not gdb_string.h. * main.c: Use string.h, not gdb_string.h. * mdebugread.c: Use string.h, not gdb_string.h. * mem-break.c: Use string.h, not gdb_string.h. * memattr.c: Use string.h, not gdb_string.h. * memory-map.c: Use string.h, not gdb_string.h. * mep-tdep.c: Use string.h, not gdb_string.h. * mi/mi-cmd-break.c: Use string.h, not gdb_string.h. * mi/mi-cmd-disas.c: Use string.h, not gdb_string.h. * mi/mi-cmd-env.c: Use string.h, not gdb_string.h. * mi/mi-cmd-stack.c: Use string.h, not gdb_string.h. * mi/mi-cmd-var.c: Use string.h, not gdb_string.h. * mi/mi-cmds.c: Use string.h, not gdb_string.h. * mi/mi-console.c: Use string.h, not gdb_string.h. * mi/mi-getopt.c: Use string.h, not gdb_string.h. * mi/mi-interp.c: Use string.h, not gdb_string.h. * mi/mi-main.c: Use string.h, not gdb_string.h. * mi/mi-parse.c: Use string.h, not gdb_string.h. * microblaze-rom.c: Use string.h, not gdb_string.h. * microblaze-tdep.c: Use string.h, not gdb_string.h. * mingw-hdep.c: Use string.h, not gdb_string.h. * minidebug.c: Use string.h, not gdb_string.h. * minsyms.c: Use string.h, not gdb_string.h. * mips-irix-tdep.c: Use string.h, not gdb_string.h. * mips-linux-tdep.c: Use string.h, not gdb_string.h. * mips-tdep.c: Use string.h, not gdb_string.h. * mips64obsd-tdep.c: Use string.h, not gdb_string.h. * mipsnbsd-tdep.c: Use string.h, not gdb_string.h. * mipsread.c: Use string.h, not gdb_string.h. * mn10300-linux-tdep.c: Use string.h, not gdb_string.h. * mn10300-tdep.c: Use string.h, not gdb_string.h. * monitor.c: Use string.h, not gdb_string.h. * moxie-tdep.c: Use string.h, not gdb_string.h. * mt-tdep.c: Use string.h, not gdb_string.h. * nbsd-tdep.c: Use string.h, not gdb_string.h. * nios2-linux-tdep.c: Use string.h, not gdb_string.h. * nto-procfs.c: Use string.h, not gdb_string.h. * nto-tdep.c: Use string.h, not gdb_string.h. * objc-lang.c: Use string.h, not gdb_string.h. * objfiles.c: Use string.h, not gdb_string.h. * opencl-lang.c: Use string.h, not gdb_string.h. * osabi.c: Use string.h, not gdb_string.h. * osdata.c: Use string.h, not gdb_string.h. * p-exp.y: Use string.h, not gdb_string.h. * p-lang.c: Use string.h, not gdb_string.h. * p-typeprint.c: Use string.h, not gdb_string.h. * parse.c: Use string.h, not gdb_string.h. * posix-hdep.c: Use string.h, not gdb_string.h. * ppc-linux-nat.c: Use string.h, not gdb_string.h. * ppc-sysv-tdep.c: Use string.h, not gdb_string.h. * ppcfbsd-tdep.c: Use string.h, not gdb_string.h. * ppcnbsd-tdep.c: Use string.h, not gdb_string.h. * ppcobsd-tdep.c: Use string.h, not gdb_string.h. * printcmd.c: Use string.h, not gdb_string.h. * procfs.c: Use string.h, not gdb_string.h. * prologue-value.c: Use string.h, not gdb_string.h. * python/py-auto-load.c: Use string.h, not gdb_string.h. * python/py-gdb-readline.c: Use string.h, not gdb_string.h. * ravenscar-thread.c: Use string.h, not gdb_string.h. * regcache.c: Use string.h, not gdb_string.h. * registry.c: Use string.h, not gdb_string.h. * remote-fileio.c: Use string.h, not gdb_string.h. * remote-m32r-sdi.c: Use string.h, not gdb_string.h. * remote-mips.c: Use string.h, not gdb_string.h. * remote-sim.c: Use string.h, not gdb_string.h. * remote.c: Use string.h, not gdb_string.h. * reverse.c: Use string.h, not gdb_string.h. * rs6000-aix-tdep.c: Use string.h, not gdb_string.h. * ser-base.c: Use string.h, not gdb_string.h. * ser-go32.c: Use string.h, not gdb_string.h. * ser-mingw.c: Use string.h, not gdb_string.h. * ser-pipe.c: Use string.h, not gdb_string.h. * ser-tcp.c: Use string.h, not gdb_string.h. * ser-unix.c: Use string.h, not gdb_string.h. * serial.c: Use string.h, not gdb_string.h. * sh-tdep.c: Use string.h, not gdb_string.h. * sh64-tdep.c: Use string.h, not gdb_string.h. * shnbsd-tdep.c: Use string.h, not gdb_string.h. * skip.c: Use string.h, not gdb_string.h. * sol-thread.c: Use string.h, not gdb_string.h. * solib-dsbt.c: Use string.h, not gdb_string.h. * solib-frv.c: Use string.h, not gdb_string.h. * solib-osf.c: Use string.h, not gdb_string.h. * solib-spu.c: Use string.h, not gdb_string.h. * solib-target.c: Use string.h, not gdb_string.h. * solib.c: Use string.h, not gdb_string.h. * somread.c: Use string.h, not gdb_string.h. * source.c: Use string.h, not gdb_string.h. * sparc-nat.c: Use string.h, not gdb_string.h. * sparc-sol2-tdep.c: Use string.h, not gdb_string.h. * sparc-tdep.c: Use string.h, not gdb_string.h. * sparc64-tdep.c: Use string.h, not gdb_string.h. * sparc64fbsd-tdep.c: Use string.h, not gdb_string.h. * sparc64nbsd-tdep.c: Use string.h, not gdb_string.h. * sparcnbsd-tdep.c: Use string.h, not gdb_string.h. * spu-linux-nat.c: Use string.h, not gdb_string.h. * spu-multiarch.c: Use string.h, not gdb_string.h. * spu-tdep.c: Use string.h, not gdb_string.h. * stabsread.c: Use string.h, not gdb_string.h. * stack.c: Use string.h, not gdb_string.h. * std-regs.c: Use string.h, not gdb_string.h. * symfile.c: Use string.h, not gdb_string.h. * symmisc.c: Use string.h, not gdb_string.h. * symtab.c: Use string.h, not gdb_string.h. * target.c: Use string.h, not gdb_string.h. * thread.c: Use string.h, not gdb_string.h. * tilegx-linux-nat.c: Use string.h, not gdb_string.h. * tilegx-tdep.c: Use string.h, not gdb_string.h. * top.c: Use string.h, not gdb_string.h. * tracepoint.c: Use string.h, not gdb_string.h. * tui/tui-command.c: Use string.h, not gdb_string.h. * tui/tui-data.c: Use string.h, not gdb_string.h. * tui/tui-disasm.c: Use string.h, not gdb_string.h. * tui/tui-file.c: Use string.h, not gdb_string.h. * tui/tui-layout.c: Use string.h, not gdb_string.h. * tui/tui-out.c: Use string.h, not gdb_string.h. * tui/tui-regs.c: Use string.h, not gdb_string.h. * tui/tui-source.c: Use string.h, not gdb_string.h. * tui/tui-stack.c: Use string.h, not gdb_string.h. * tui/tui-win.c: Use string.h, not gdb_string.h. * tui/tui-windata.c: Use string.h, not gdb_string.h. * tui/tui-winsource.c: Use string.h, not gdb_string.h. * typeprint.c: Use string.h, not gdb_string.h. * ui-file.c: Use string.h, not gdb_string.h. * ui-out.c: Use string.h, not gdb_string.h. * user-regs.c: Use string.h, not gdb_string.h. * utils.c: Use string.h, not gdb_string.h. * v850-tdep.c: Use string.h, not gdb_string.h. * valarith.c: Use string.h, not gdb_string.h. * valops.c: Use string.h, not gdb_string.h. * valprint.c: Use string.h, not gdb_string.h. * value.c: Use string.h, not gdb_string.h. * varobj.c: Use string.h, not gdb_string.h. * vax-tdep.c: Use string.h, not gdb_string.h. * vaxnbsd-tdep.c: Use string.h, not gdb_string.h. * vaxobsd-tdep.c: Use string.h, not gdb_string.h. * windows-nat.c: Use string.h, not gdb_string.h. * xcoffread.c: Use string.h, not gdb_string.h. * xml-support.c: Use string.h, not gdb_string.h. * xstormy16-tdep.c: Use string.h, not gdb_string.h. * xtensa-linux-nat.c: Use string.h, not gdb_string.h.
2013-11-06 15:14:23 +01:00
#include <string.h>
2013-02-04 Andreas Tobler <andreast@fgznet.ch> * Makefile.in (ALL_TARGET_OBS): Add powerpc FreeBSD files. * configure.host: Add powerpc*-*-freebsd* target. * configure.tgt: Add target info for powerpc*-*-freebsd*. * ppcfbsd-nat.c, ppcfbsd-tdep.h, ppcfbsd-tdep.c: New files. * config/powerpc/fbsd.mh: New file.
2013-02-04 21:48:53 +01:00
#include "ppc-tdep.h"
#include "ppc64-tdep.h"
#include "ppcfbsd-tdep.h"
#include "solib-svr4.h"
/* 32-bit regset descriptions. */
static const struct ppc_reg_offsets ppc32_fbsd_reg_offsets =
{
/* General-purpose registers. */
/* .r0_offset = */ 0,
/* .gpr_size = */ 4,
/* .xr_size = */ 4,
/* .pc_offset = */ 144,
/* .ps_offset = */ -1,
/* .cr_offset = */ 132,
/* .lr_offset = */ 128,
/* .ctr_offset = */ 140,
/* .xer_offset = */ 136,
/* .mq_offset = */ -1,
/* Floating-point registers. */
/* .f0_offset = */ 0,
/* .fpscr_offset = */ 256,
/* .fpscr_size = */ 8,
#ifdef NOTYET
/* AltiVec registers. */
/* .vr0_offset = */ 0,
/* .vscr_offset = */ 512 + 12,
/* .vrsave_offset = */ 512
#endif
};
/* 64-bit regset descriptions. */
static const struct ppc_reg_offsets ppc64_fbsd_reg_offsets =
{
/* General-purpose registers. */
/* .r0_offset = */ 0,
/* .gpr_size = */ 8,
/* .xr_size = */ 8,
/* .pc_offset = */ 288,
/* .ps_offset = */ -1,
/* .cr_offset = */ 264,
/* .lr_offset = */ 256,
/* .ctr_offset = */ 280,
/* .xer_offset = */ 272,
/* .mq_offset = */ -1,
/* Floating-point registers. */
/* .f0_offset = */ 0,
/* .fpscr_offset = */ 256,
/* .fpscr_size = */ 8,
#ifdef NOYET
/* AltiVec registers. */
/* .vr0_offset = */ 0,
/* .vscr_offset = */ 512 + 12,
/* .vrsave_offset = */ 528
#endif
};
/* 32-bit general-purpose register set. */
static const struct regset ppc32_fbsd_gregset = {
&ppc32_fbsd_reg_offsets,
ppc_supply_gregset,
ppc_collect_gregset,
NULL
};
/* 64-bit general-purpose register set. */
static const struct regset ppc64_fbsd_gregset = {
&ppc64_fbsd_reg_offsets,
ppc_supply_gregset,
ppc_collect_gregset,
NULL
};
/* 32-/64-bit floating-point register set. */
static struct regset ppc32_fbsd_fpregset = {
&ppc32_fbsd_reg_offsets,
ppc_supply_fpregset,
ppc_collect_fpregset
};
const struct regset *
ppc_fbsd_gregset (int wordsize)
{
return wordsize == 8 ? &ppc64_fbsd_gregset : &ppc32_fbsd_gregset;
}
const struct regset *
ppc_fbsd_fpregset (void)
{
return &ppc32_fbsd_fpregset;
}
/* Return the appropriate register set for the core section identified
by SECT_NAME and SECT_SIZE. */
static const struct regset *
ppcfbsd_regset_from_core_section (struct gdbarch *gdbarch,
const char *sect_name, size_t sect_size)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (strcmp (sect_name, ".reg") == 0 && sect_size >= 148)
{
if (tdep->wordsize == 4)
return &ppc32_fbsd_gregset;
else
return &ppc64_fbsd_gregset;
}
if (strcmp (sect_name, ".reg2") == 0 && sect_size >= 264)
return &ppc32_fbsd_fpregset;
return NULL;
}
/* Default page size. */
static const int ppcfbsd_page_size = 4096;
/* Offset for sigreturn(2). */
static const int ppcfbsd_sigreturn_offset[] = {
0xc, /* FreeBSD 32-bit */
-1
};
/* Signal trampolines. */
static int
ppcfbsd_sigtramp_frame_sniffer (const struct frame_unwind *self,
struct frame_info *this_frame,
void **this_cache)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR pc = get_frame_pc (this_frame);
CORE_ADDR start_pc = (pc & ~(ppcfbsd_page_size - 1));
const int *offset;
const char *name;
/* A stack trampoline is detected if no name is associated
to the current pc and if it points inside a trampoline
sequence. */
find_pc_partial_function (pc, &name, NULL, NULL);
/* If we have a name, we have no trampoline, return. */
if (name)
return 0;
for (offset = ppcfbsd_sigreturn_offset; *offset != -1; offset++)
{
gdb_byte buf[2 * PPC_INSN_SIZE];
unsigned long insn;
if (!safe_frame_unwind_memory (this_frame, start_pc + *offset,
buf, sizeof buf))
continue;
/* Check for "li r0,SYS_sigreturn". */
insn = extract_unsigned_integer (buf, PPC_INSN_SIZE, byte_order);
if (insn != 0x380001a1)
continue;
/* Check for "sc". */
insn = extract_unsigned_integer (buf + PPC_INSN_SIZE,
PPC_INSN_SIZE, byte_order);
if (insn != 0x44000002)
continue;
return 1;
}
return 0;
}
static struct trad_frame_cache *
ppcfbsd_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct trad_frame_cache *cache;
CORE_ADDR addr, base, func;
gdb_byte buf[PPC_INSN_SIZE];
int i;
if (*this_cache)
return *this_cache;
cache = trad_frame_cache_zalloc (this_frame);
*this_cache = cache;
func = get_frame_pc (this_frame);
func &= ~(ppcfbsd_page_size - 1);
if (!safe_frame_unwind_memory (this_frame, func, buf, sizeof buf))
return cache;
base = get_frame_register_unsigned (this_frame, gdbarch_sp_regnum (gdbarch));
addr = base + 0x10 + 2 * tdep->wordsize;
for (i = 0; i < ppc_num_gprs; i++, addr += tdep->wordsize)
{
int regnum = i + tdep->ppc_gp0_regnum;
trad_frame_set_reg_addr (cache, regnum, addr);
}
trad_frame_set_reg_addr (cache, tdep->ppc_lr_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (cache, tdep->ppc_cr_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (cache, tdep->ppc_xer_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (cache, tdep->ppc_ctr_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (cache, gdbarch_pc_regnum (gdbarch), addr);
/* SRR0? */
addr += tdep->wordsize;
/* Construct the frame ID using the function start. */
trad_frame_set_id (cache, frame_id_build (base, func));
return cache;
}
static void
ppcfbsd_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_cache, struct frame_id *this_id)
{
struct trad_frame_cache *cache =
ppcfbsd_sigtramp_frame_cache (this_frame, this_cache);
trad_frame_get_id (cache, this_id);
}
static struct value *
ppcfbsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
void **this_cache, int regnum)
{
struct trad_frame_cache *cache =
ppcfbsd_sigtramp_frame_cache (this_frame, this_cache);
return trad_frame_get_register (cache, this_frame, regnum);
}
static const struct frame_unwind ppcfbsd_sigtramp_frame_unwind = {
SIGTRAMP_FRAME,
default_frame_unwind_stop_reason,
ppcfbsd_sigtramp_frame_this_id,
ppcfbsd_sigtramp_frame_prev_register,
NULL,
ppcfbsd_sigtramp_frame_sniffer
};
static enum return_value_convention
ppcfbsd_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *valtype, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
return ppc_sysv_abi_broken_return_value (gdbarch, function, valtype,
regcache, readbuf, writebuf);
}
static void
ppcfbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* FreeBSD doesn't support the 128-bit `long double' from the psABI. */
set_gdbarch_long_double_bit (gdbarch, 64);
set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
if (tdep->wordsize == 4)
{
set_gdbarch_return_value (gdbarch, ppcfbsd_return_value);
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
set_solib_svr4_fetch_link_map_offsets (gdbarch,
svr4_ilp32_fetch_link_map_offsets);
frame_unwind_append_unwinder (gdbarch, &ppcfbsd_sigtramp_frame_unwind);
set_gdbarch_gcore_bfd_target (gdbarch, "elf32-powerpc");
}
if (tdep->wordsize == 8)
{
set_gdbarch_convert_from_func_ptr_addr
(gdbarch, ppc64_convert_from_func_ptr_addr);
* elfread.c (elf_symtab_read): Do not use udata.p here to find symbol size. * ppc64-tdep.c (ppc64_elf_make_msymbol_special): New function. * ppc64-tdep.h (ppc64_elf_make_msymbol_special): Declare. * ppc-linux-tdep.c (ppc_linux_init_abi): Set up to use the above. * ppcfbsd-tdep.c (ppcfbsd_init_abi): Likewise.
2013-02-23 00:24:24 +01:00
set_gdbarch_elf_make_msymbol_special (gdbarch,
ppc64_elf_make_msymbol_special);
2013-02-04 Andreas Tobler <andreast@fgznet.ch> * Makefile.in (ALL_TARGET_OBS): Add powerpc FreeBSD files. * configure.host: Add powerpc*-*-freebsd* target. * configure.tgt: Add target info for powerpc*-*-freebsd*. * ppcfbsd-nat.c, ppcfbsd-tdep.h, ppcfbsd-tdep.c: New files. * config/powerpc/fbsd.mh: New file.
2013-02-04 21:48:53 +01:00
set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code);
set_solib_svr4_fetch_link_map_offsets (gdbarch,
svr4_lp64_fetch_link_map_offsets);
set_gdbarch_gcore_bfd_target (gdbarch, "elf64-powerpc");
}
set_gdbarch_regset_from_core_section
(gdbarch, ppcfbsd_regset_from_core_section);
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_ppcfbsd_tdep (void);
void
_initialize_ppcfbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc, GDB_OSABI_FREEBSD_ELF,
ppcfbsd_init_abi);
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc64,
GDB_OSABI_FREEBSD_ELF,
ppcfbsd_init_abi);
gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_FREEBSD_ELF,
ppcfbsd_init_abi);
}