2004-10-01 07:29:34 +00:00
|
|
|
|
/* Target-dependent code for GNU/Linux m32r.
|
|
|
|
|
|
|
2014-01-01 03:54:24 +00:00
|
|
|
|
Copyright (C) 2004-2014 Free Software Foundation, Inc.
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
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
|
2007-08-23 18:08:50 +00:00
|
|
|
|
the Free Software Foundation; either version 3 of the License, or
|
2004-10-01 07:29:34 +00:00
|
|
|
|
(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
|
2007-08-23 18:08:50 +00:00
|
|
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
#include "defs.h"
|
|
|
|
|
|
#include "gdbcore.h"
|
|
|
|
|
|
#include "frame.h"
|
|
|
|
|
|
#include "value.h"
|
|
|
|
|
|
#include "regcache.h"
|
|
|
|
|
|
#include "inferior.h"
|
|
|
|
|
|
#include "osabi.h"
|
|
|
|
|
|
#include "reggroups.h"
|
2004-11-12 01:00:41 +00:00
|
|
|
|
#include "regset.h"
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
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 14:14:23 +00:00
|
|
|
|
#include <string.h>
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
#include "glibc-tdep.h"
|
|
|
|
|
|
#include "solib-svr4.h"
|
2006-11-28 21:41:03 +00:00
|
|
|
|
#include "symtab.h"
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
#include "trad-frame.h"
|
|
|
|
|
|
#include "frame-unwind.h"
|
|
|
|
|
|
|
|
|
|
|
|
#include "m32r-tdep.h"
|
2010-08-04 15:27:57 +00:00
|
|
|
|
#include "linux-tdep.h"
|
|
|
|
|
|
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Recognizing signal handler frames. */
|
|
|
|
|
|
|
|
|
|
|
|
/* GNU/Linux has two flavors of signals. Normal signal handlers, and
|
|
|
|
|
|
"realtime" (RT) signals. The RT signals can provide additional
|
|
|
|
|
|
information to the signal handler if the SA_SIGINFO flag is set
|
|
|
|
|
|
when establishing a signal handler using `sigaction'. It is not
|
|
|
|
|
|
unlikely that future versions of GNU/Linux will support SA_SIGINFO
|
|
|
|
|
|
for normal signals too. */
|
|
|
|
|
|
|
|
|
|
|
|
/* When the m32r Linux kernel calls a signal handler and the
|
|
|
|
|
|
SA_RESTORER flag isn't set, the return address points to a bit of
|
|
|
|
|
|
code on the stack. This function returns whether the PC appears to
|
|
|
|
|
|
be within this bit of code.
|
|
|
|
|
|
|
|
|
|
|
|
The instruction sequence for normal signals is
|
|
|
|
|
|
ldi r7, #__NR_sigreturn
|
|
|
|
|
|
trap #2
|
|
|
|
|
|
or 0x67 0x77 0x10 0xf2.
|
|
|
|
|
|
|
|
|
|
|
|
Checking for the code sequence should be somewhat reliable, because
|
|
|
|
|
|
the effect is to call the system call sigreturn. This is unlikely
|
|
|
|
|
|
to occur anywhere other than in a signal trampoline.
|
|
|
|
|
|
|
|
|
|
|
|
It kind of sucks that we have to read memory from the process in
|
|
|
|
|
|
order to identify a signal trampoline, but there doesn't seem to be
|
|
|
|
|
|
any other way. Therefore we only do the memory reads if no
|
|
|
|
|
|
function name could be identified, which should be the case since
|
|
|
|
|
|
the code is on the stack.
|
|
|
|
|
|
|
|
|
|
|
|
Detection of signal trampolines for handlers that set the
|
|
|
|
|
|
SA_RESTORER flag is in general not possible. Unfortunately this is
|
|
|
|
|
|
what the GNU C Library has been doing for quite some time now.
|
|
|
|
|
|
However, as of version 2.1.2, the GNU C Library uses signal
|
|
|
|
|
|
trampolines (named __restore and __restore_rt) that are identical
|
|
|
|
|
|
to the ones used by the kernel. Therefore, these trampolines are
|
|
|
|
|
|
supported too. */
|
|
|
|
|
|
|
2005-11-08 05:54:22 +00:00
|
|
|
|
static const gdb_byte linux_sigtramp_code[] = {
|
2004-10-01 07:29:34 +00:00
|
|
|
|
0x67, 0x77, 0x10, 0xf2,
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If PC is in a sigtramp routine, return the address of the start of
|
|
|
|
|
|
the routine. Otherwise, return 0. */
|
|
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_sigtramp_start (CORE_ADDR pc, struct frame_info *this_frame)
|
2004-10-01 07:29:34 +00:00
|
|
|
|
{
|
2005-11-08 05:54:22 +00:00
|
|
|
|
gdb_byte buf[4];
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
/* We only recognize a signal trampoline if PC is at the start of
|
|
|
|
|
|
one of the instructions. We optimize for finding the PC at the
|
|
|
|
|
|
start of the instruction sequence, as will be the case when the
|
|
|
|
|
|
trampoline is not the first frame on the stack. We assume that
|
|
|
|
|
|
in the case where the PC is not at the start of the instruction
|
|
|
|
|
|
sequence, there will be a few trailing readable bytes on the
|
|
|
|
|
|
stack. */
|
|
|
|
|
|
|
|
|
|
|
|
if (pc % 2 != 0)
|
|
|
|
|
|
{
|
2008-06-28 17:29:04 +00:00
|
|
|
|
if (!safe_frame_unwind_memory (this_frame, pc, buf, 2))
|
2004-10-01 07:29:34 +00:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_sigtramp_code, 2) == 0)
|
|
|
|
|
|
pc -= 2;
|
|
|
|
|
|
else
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
if (!safe_frame_unwind_memory (this_frame, pc, buf, 4))
|
2004-10-01 07:29:34 +00:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_sigtramp_code, 4) != 0)
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
return pc;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* This function does the same for RT signals. Here the instruction
|
|
|
|
|
|
sequence is
|
|
|
|
|
|
ldi r7, #__NR_rt_sigreturn
|
|
|
|
|
|
trap #2
|
|
|
|
|
|
or 0x97 0xf0 0x00 0xad 0x10 0xf2 0xf0 0x00.
|
|
|
|
|
|
|
|
|
|
|
|
The effect is to call the system call rt_sigreturn. */
|
|
|
|
|
|
|
2005-11-08 05:54:22 +00:00
|
|
|
|
static const gdb_byte linux_rt_sigtramp_code[] = {
|
2004-10-01 07:29:34 +00:00
|
|
|
|
0x97, 0xf0, 0x00, 0xad, 0x10, 0xf2, 0xf0, 0x00,
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* If PC is in a RT sigtramp routine, return the address of the start
|
|
|
|
|
|
of the routine. Otherwise, return 0. */
|
|
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_rt_sigtramp_start (CORE_ADDR pc, struct frame_info *this_frame)
|
2004-10-01 07:29:34 +00:00
|
|
|
|
{
|
2005-11-08 05:54:22 +00:00
|
|
|
|
gdb_byte buf[4];
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
/* We only recognize a signal trampoline if PC is at the start of
|
|
|
|
|
|
one of the instructions. We optimize for finding the PC at the
|
|
|
|
|
|
start of the instruction sequence, as will be the case when the
|
|
|
|
|
|
trampoline is not the first frame on the stack. We assume that
|
|
|
|
|
|
in the case where the PC is not at the start of the instruction
|
|
|
|
|
|
sequence, there will be a few trailing readable bytes on the
|
|
|
|
|
|
stack. */
|
|
|
|
|
|
|
|
|
|
|
|
if (pc % 2 != 0)
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
if (!safe_frame_unwind_memory (this_frame, pc, buf, 4))
|
2004-10-01 07:29:34 +00:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_rt_sigtramp_code, 4) == 0)
|
|
|
|
|
|
{
|
2008-06-28 17:29:04 +00:00
|
|
|
|
if (!safe_frame_unwind_memory (this_frame, pc + 4, buf, 4))
|
2004-10-01 07:29:34 +00:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_rt_sigtramp_code + 4, 4) == 0)
|
|
|
|
|
|
return pc;
|
|
|
|
|
|
}
|
|
|
|
|
|
else if (memcmp (buf, linux_rt_sigtramp_code + 4, 4) == 0)
|
|
|
|
|
|
{
|
2008-06-28 17:29:04 +00:00
|
|
|
|
if (!safe_frame_unwind_memory (this_frame, pc - 4, buf, 4))
|
2004-10-01 07:29:34 +00:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_rt_sigtramp_code, 4) == 0)
|
|
|
|
|
|
return pc - 4;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
2012-02-02 20:19:17 +00:00
|
|
|
|
m32r_linux_pc_in_sigtramp (CORE_ADDR pc, const char *name,
|
2008-06-28 17:29:04 +00:00
|
|
|
|
struct frame_info *this_frame)
|
2004-10-01 07:29:34 +00:00
|
|
|
|
{
|
|
|
|
|
|
/* If we have NAME, we can optimize the search. The trampolines are
|
|
|
|
|
|
named __restore and __restore_rt. However, they aren't dynamically
|
|
|
|
|
|
exported from the shared C library, so the trampoline may appear to
|
|
|
|
|
|
be part of the preceding function. This should always be sigaction,
|
|
|
|
|
|
__sigaction, or __libc_sigaction (all aliases to the same function). */
|
|
|
|
|
|
if (name == NULL || strstr (name, "sigaction") != NULL)
|
2008-06-28 17:29:04 +00:00
|
|
|
|
return (m32r_linux_sigtramp_start (pc, this_frame) != 0
|
|
|
|
|
|
|| m32r_linux_rt_sigtramp_start (pc, this_frame) != 0);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
return (strcmp ("__restore", name) == 0
|
|
|
|
|
|
|| strcmp ("__restore_rt", name) == 0);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* From <asm/sigcontext.h>. */
|
|
|
|
|
|
static int m32r_linux_sc_reg_offset[] = {
|
|
|
|
|
|
4 * 4, /* r0 */
|
|
|
|
|
|
5 * 4, /* r1 */
|
|
|
|
|
|
6 * 4, /* r2 */
|
|
|
|
|
|
7 * 4, /* r3 */
|
|
|
|
|
|
0 * 4, /* r4 */
|
|
|
|
|
|
1 * 4, /* r5 */
|
|
|
|
|
|
2 * 4, /* r6 */
|
|
|
|
|
|
8 * 4, /* r7 */
|
|
|
|
|
|
9 * 4, /* r8 */
|
|
|
|
|
|
10 * 4, /* r9 */
|
|
|
|
|
|
11 * 4, /* r10 */
|
|
|
|
|
|
12 * 4, /* r11 */
|
|
|
|
|
|
13 * 4, /* r12 */
|
|
|
|
|
|
21 * 4, /* fp */
|
|
|
|
|
|
22 * 4, /* lr */
|
|
|
|
|
|
-1 * 4, /* sp */
|
|
|
|
|
|
16 * 4, /* psw */
|
|
|
|
|
|
-1 * 4, /* cbr */
|
|
|
|
|
|
23 * 4, /* spi */
|
|
|
|
|
|
20 * 4, /* spu */
|
|
|
|
|
|
19 * 4, /* bpc */
|
|
|
|
|
|
17 * 4, /* pc */
|
|
|
|
|
|
15 * 4, /* accl */
|
|
|
|
|
|
14 * 4 /* acch */
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
struct m32r_frame_cache
|
|
|
|
|
|
{
|
|
|
|
|
|
CORE_ADDR base, pc;
|
|
|
|
|
|
struct trad_frame_saved_reg *saved_regs;
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static struct m32r_frame_cache *
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_sigtramp_frame_cache (struct frame_info *this_frame,
|
2004-10-01 07:29:34 +00:00
|
|
|
|
void **this_cache)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct m32r_frame_cache *cache;
|
|
|
|
|
|
CORE_ADDR sigcontext_addr, addr;
|
|
|
|
|
|
int regnum;
|
|
|
|
|
|
|
|
|
|
|
|
if ((*this_cache) != NULL)
|
|
|
|
|
|
return (*this_cache);
|
|
|
|
|
|
cache = FRAME_OBSTACK_ZALLOC (struct m32r_frame_cache);
|
|
|
|
|
|
(*this_cache) = cache;
|
2008-06-28 17:29:04 +00:00
|
|
|
|
cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
cache->base = get_frame_register_unsigned (this_frame, M32R_SP_REGNUM);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
sigcontext_addr = cache->base + 4;
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
cache->pc = get_frame_pc (this_frame);
|
|
|
|
|
|
addr = m32r_linux_sigtramp_start (cache->pc, this_frame);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
if (addr == 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* If this is a RT signal trampoline, adjust SIGCONTEXT_ADDR
|
|
|
|
|
|
accordingly. */
|
2008-06-28 17:29:04 +00:00
|
|
|
|
addr = m32r_linux_rt_sigtramp_start (cache->pc, this_frame);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
if (addr)
|
|
|
|
|
|
sigcontext_addr += 128;
|
|
|
|
|
|
else
|
2008-06-28 17:29:04 +00:00
|
|
|
|
addr = get_frame_func (this_frame);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
}
|
|
|
|
|
|
cache->pc = addr;
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
for (regnum = 0; regnum < sizeof (m32r_linux_sc_reg_offset) / 4; regnum++)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (m32r_linux_sc_reg_offset[regnum] >= 0)
|
|
|
|
|
|
cache->saved_regs[regnum].addr =
|
|
|
|
|
|
sigcontext_addr + m32r_linux_sc_reg_offset[regnum];
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return cache;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_sigtramp_frame_this_id (struct frame_info *this_frame,
|
2004-10-01 07:29:34 +00:00
|
|
|
|
void **this_cache,
|
|
|
|
|
|
struct frame_id *this_id)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct m32r_frame_cache *cache =
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_sigtramp_frame_cache (this_frame, this_cache);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
(*this_id) = frame_id_build (cache->base, cache->pc);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
static struct value *
|
|
|
|
|
|
m32r_linux_sigtramp_frame_prev_register (struct frame_info *this_frame,
|
|
|
|
|
|
void **this_cache, int regnum)
|
2004-10-01 07:29:34 +00:00
|
|
|
|
{
|
|
|
|
|
|
struct m32r_frame_cache *cache =
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_sigtramp_frame_cache (this_frame, this_cache);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
static int
|
|
|
|
|
|
m32r_linux_sigtramp_frame_sniffer (const struct frame_unwind *self,
|
|
|
|
|
|
struct frame_info *this_frame,
|
|
|
|
|
|
void **this_cache)
|
2004-10-01 07:29:34 +00:00
|
|
|
|
{
|
2008-06-28 17:29:04 +00:00
|
|
|
|
CORE_ADDR pc = get_frame_pc (this_frame);
|
2012-02-02 20:19:17 +00:00
|
|
|
|
const char *name;
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
find_pc_partial_function (pc, &name, NULL, NULL);
|
2008-06-28 17:29:04 +00:00
|
|
|
|
if (m32r_linux_pc_in_sigtramp (pc, name, this_frame))
|
|
|
|
|
|
return 1;
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
return 0;
|
2004-10-01 07:29:34 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
static const struct frame_unwind m32r_linux_sigtramp_frame_unwind = {
|
|
|
|
|
|
SIGTRAMP_FRAME,
|
gdb/
* frame.c (frame_unwind_register): Throw an error if unwinding the
register failed.
* get_prev_frame_1 (get_prev_frame_1): Ask the unwinder if there's
an unwind stop reason.
(frame_stop_reason_string): Handle UNWIND_UNAVAILABLE.
* frame.h (enum unwind_stop_reason) <UNWIND_OUTERMOST,
UNWIND_UNAVAILABLE>: New.
* inline-frame.c (inline_frame_unwind): Install
default_frame_unwind_stop_reason.
* frame-unwind.c: Include "exceptions.h".
(frame_unwind_find_by_frame): Swallow NOT_AVAILABLE_ERROR errors.
(default_frame_unwind_stop_reason): New.
* frame-unwind.h (frame_unwind_stop_reason_ftype): New typedef.
(default_frame_unwind_stop_reason): Declare.
(struct frame_unwind) <stop_reason>: New function pointer.
* dummy-frame.c: Install default_frame_unwind_stop_reason.
* dwarf2-frame.c: Include exceptions.h.
(struct dwarf2_frame_cache) <unavailable_retaddr>: New field.
(dwarf2_frame_cache): Swallow NOT_AVAILABLE_ERROR errors when
computing the CFA. If such an error was thrown, set
unavailable_retaddr.
(dwarf2_frame_unwind_stop_reason): New.
(dwarf2_frame_this_id): Don't build a frame id if the CFA was
unavailable.
(dwarf2_frame_unwind): Install dwarf2_frame_unwind_stop_reason.
(dwarf2_signal_frame_unwind): Ditto.
* amd64-tdep.c: Include "exceptions.h".
(struct amd64_frame_cache): New field "base_p".
(amd64_init_frame_cache): Clear it.
(amd64_frame_cache_1): New, factored out from amd64_frame_cache.
Avoid reading registers with functions that throw if the register
is not necessary to compute the frame base.
(amd64_frame_cache): Reimplement wrapping amd64_frame_cache_1, and
swallowing NOT_AVAILABLE_ERROR.
(amd64_frame_unwind_stop_reason): New.
(amd64_frame_this_id): Don't build a frame id if the frame base
was unavailable.
(amd64_frame_unwind): Install amd64_frame_unwind_stop_reason.
(amd64_sigtramp_frame_cache): Swallow NOT_AVAILABLE_ERROR, and set
base_p if the frame base was computable.
(amd64_sigtramp_frame_unwind_stop_reason): New.
(amd64_sigtramp_frame_this_id): Don't build a frame id if the
frame base was unavailable.
(amd64_sigtramp_frame_unwind): Install
amd64_sigtramp_frame_unwind_stop_reason.
(amd64_epilogue_frame_cache): Swallow NOT_AVAILABLE_ERROR, and set
base_p if the frame base was computable.
(amd64_epilogue_frame_unwind_stop_reason): New.
(amd64_epilogue_frame_this_id): Don't build a frame id if the
frame base was unavailable.
(amd64_epilogue_frame_unwind): Install
amd64_epilogue_frame_unwind_stop_reason.
* i386-tdep.c: Include "exceptions.h".
(struct i386_frame_cache): New field "base_p".
(i386_init_frame_cache): Clear it.
(i386_frame_cache_1): New, factored out from amd64_frame_cache.
Avoid reading registers with functions that throw if the register
is not necessary to compute the frame base.
(i386_frame_cache): Reimplement wrapping amd64_frame_cache_1, and
swallowing NOT_AVAILABLE_ERROR.
(i386_frame_unwind_stop_reason): New.
(i386_frame_this_id): Don't build a frame id if the frame base was
unavailable.
(i386_frame_prev_register): Handle unavailable SP.
(i386_frame_unwind): Install i386_frame_unwind_stop_reason.
(i386_epilogue_frame_cache): Swallow NOT_AVAILABLE_ERROR, and set
base_p if the frame base was computable.
(i386_epilogue_frame_unwind_stop_reason): New.
(i386_epilogue_frame_this_id): Don't build a frame id if the frame
base was unavailable.
(i386_epilogue_frame_unwind): Install
i386_epilogue_frame_unwind_stop_reason.
(i386_sigtramp_frame_cache): Swallow NOT_AVAILABLE_ERROR, and set
base_p if the frame base was computable.
(i386_sigtramp_frame_unwind_stop_reason): New.
(i386_sigtramp_frame_this_id): Don't build a frame id if the frame
base was unavailable.
(i386_sigtramp_frame_unwind): Install
i386_sigtramp_frame_unwind_stop_reason.
* sentinel-frame.c (sentinel_frame_prev_register): Use the value
type's size, not the register's.
(sentinel_frame_unwind): Install default_frame_unwind_stop_reason.
* alpha-mdebug-tdep.c (alpha_mdebug_frame_unwind): Install
default_frame_unwind_stop_reason.
* alpha-tdep.c (alpha_sigtramp_frame_unwind)
(alpha_heuristic_frame_unwind): Ditto.
* amd64obsd-tdep.c (amd64obsd_trapframe_unwind): Ditto.
* arm-tdep.c (arm_prologue_unwind, arm_stub_unwind): Ditto.
* avr-tdep.c (avr_frame_unwind): Ditto.
* cris-tdep.c (cris_sigtramp_frame_unwind, cris_frame_unwind):
Ditto.
* frv-linux-tdep.c (frv_linux_sigtramp_frame_unwind): Ditto.
* frv-tdep.c (frv_frame_unwind): Ditto.
* h8300-tdep.c (h8300_frame_unwind): Ditto.
* hppa-hpux-tdep.c (hppa_hpux_sigtramp_frame_unwind): Ditto.
* hppa-linux-tdep.c (hppa_linux_sigtramp_frame_unwind): Ditto.
* hppa-tdep.c (hppa_frame_unwind, hppa_fallback_frame_unwind)
(hppa_stub_frame_unwind): Ditto.
* i386obsd-tdep.c (i386obsd_trapframe_unwind): Ditto.
* ia64-tdep.c (ia64_frame_unwind, ia64_sigtramp_frame_unwind)
(ia64_libunwind_frame_unwind)
(ia64_libunwind_sigtramp_frame_unwind): Ditto.
* iq2000-tdep.c (iq2000_frame_unwind): Ditto.
* lm32-tdep.c (lm32_frame_unwind): Ditto.
* m32c-tdep.c (m32c_unwind): Ditto.
* m32r-linux-tdep.c (m32r_linux_sigtramp_frame_unwind): Ditto.
* m32r-tdep.c (m32r_frame_unwind): Ditto.
* m68hc11-tdep.c (m68hc11_frame_unwind): Ditto.
* m68k-tdep.c (m68k_frame_unwind): Ditto.
* m68klinux-tdep.c (m68k_linux_sigtramp_frame_unwind): Ditto.
* m88k-tdep.c (m88k_frame_unwind): Ditto.
* mep-tdep.c (mep_frame_unwind): Ditto.
* microblaze-tdep.c (microblaze_frame_unwind): Ditto.
* mips-tdep.c (mips_insn16_frame_unwind, mips_insn32_frame_unwind)
(mips_stub_frame_unwind): Ditto.
* mn10300-tdep.c (mn10300_frame_unwind): Ditto.
* moxie-tdep.c (moxie_frame_unwind): Ditto.
* mt-tdep.c (mt_frame_unwind): Ditto.
* ppc-linux-tdep.c (ppu2spu_unwind): Ditto.
* ppcobsd-tdep.c (ppcobsd_sigtramp_frame_unwind): Ditto.
* rs6000-tdep.c (rs6000_frame_unwind): Ditto.
* s390-tdep.c (s390_frame_unwind, s390_stub_frame_unwind)
(s390_sigtramp_frame_unwind): Ditto.
* score-tdep.c (score_prologue_unwind): Ditto.
* sh-tdep.c (sh_frame_unwind): Ditto.
* sh64-tdep.c (sh64_frame_unwind): Ditto.
* sparc-sol2-tdep.c (sparc32_sol2_sigtramp_frame_unwind): Ditto.
* sparc-tdep.c (sparc32_frame_unwind): Ditto.
* sparc64-sol2-tdep.c (sparc64_sol2_sigtramp_frame_unwind): Ditto.
* sparc64-tdep.c (sparc64_frame_unwind): Ditto.
* sparc64fbsd-tdep.c (sparc64fbsd_sigtramp_frame_unwind): Ditto.
* sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_frame_unwind): Ditto.
* sparc64obsd-tdep.c (sparc64obsd_frame_unwind)
(sparc64obsd_trapframe_unwind): Ditto.
* sparcnbsd-tdep.c (sparc32nbsd_sigcontext_frame_unwind): Ditto.
* sparcobsd-tdep.c (sparc32obsd_sigtramp_frame_unwind): Ditto.
* spu-tdep.c (spu_frame_unwind, spu2ppu_unwind): Ditto.
* v850-tdep.c (v850_frame_unwind): Ditto.
* vax-tdep.c (vax_frame_unwind): Ditto.
* vaxobsd-tdep.c (vaxobsd_sigtramp_frame_unwind): Ditto.
* xstormy16-tdep.c (frame_unwind xstormy16_frame_unwind): Ditto.
* xtensa-tdep.c (xtensa_unwind): Ditto.
2011-03-18 18:52:32 +00:00
|
|
|
|
default_frame_unwind_stop_reason,
|
2008-06-28 17:29:04 +00:00
|
|
|
|
m32r_linux_sigtramp_frame_this_id,
|
|
|
|
|
|
m32r_linux_sigtramp_frame_prev_register,
|
|
|
|
|
|
NULL,
|
|
|
|
|
|
m32r_linux_sigtramp_frame_sniffer
|
|
|
|
|
|
};
|
|
|
|
|
|
|
2004-11-12 01:00:41 +00:00
|
|
|
|
/* Mapping between the registers in `struct pt_regs'
|
|
|
|
|
|
format and GDB's register array layout. */
|
|
|
|
|
|
|
|
|
|
|
|
static int m32r_pt_regs_offset[] = {
|
|
|
|
|
|
4 * 4, /* r0 */
|
|
|
|
|
|
4 * 5, /* r1 */
|
|
|
|
|
|
4 * 6, /* r2 */
|
|
|
|
|
|
4 * 7, /* r3 */
|
|
|
|
|
|
4 * 0, /* r4 */
|
|
|
|
|
|
4 * 1, /* r5 */
|
|
|
|
|
|
4 * 2, /* r6 */
|
|
|
|
|
|
4 * 8, /* r7 */
|
|
|
|
|
|
4 * 9, /* r8 */
|
|
|
|
|
|
4 * 10, /* r9 */
|
|
|
|
|
|
4 * 11, /* r10 */
|
|
|
|
|
|
4 * 12, /* r11 */
|
|
|
|
|
|
4 * 13, /* r12 */
|
|
|
|
|
|
4 * 24, /* fp */
|
|
|
|
|
|
4 * 25, /* lr */
|
|
|
|
|
|
4 * 23, /* sp */
|
|
|
|
|
|
4 * 19, /* psw */
|
|
|
|
|
|
4 * 19, /* cbr */
|
|
|
|
|
|
4 * 26, /* spi */
|
|
|
|
|
|
4 * 23, /* spu */
|
|
|
|
|
|
4 * 22, /* bpc */
|
|
|
|
|
|
4 * 20, /* pc */
|
|
|
|
|
|
4 * 16, /* accl */
|
|
|
|
|
|
4 * 15 /* acch */
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
#define PSW_OFFSET (4 * 19)
|
|
|
|
|
|
#define BBPSW_OFFSET (4 * 21)
|
|
|
|
|
|
#define SPU_OFFSET (4 * 23)
|
|
|
|
|
|
#define SPI_OFFSET (4 * 26)
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
m32r_linux_supply_gregset (const struct regset *regset,
|
|
|
|
|
|
struct regcache *regcache, int regnum,
|
|
|
|
|
|
const void *gregs, size_t size)
|
|
|
|
|
|
{
|
|
|
|
|
|
const char *regs = gregs;
|
|
|
|
|
|
unsigned long psw, bbpsw;
|
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
|
|
psw = *((unsigned long *) (regs + PSW_OFFSET));
|
|
|
|
|
|
bbpsw = *((unsigned long *) (regs + BBPSW_OFFSET));
|
|
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < sizeof (m32r_pt_regs_offset) / 4; i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (regnum != -1 && regnum != i)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
|
|
switch (i)
|
|
|
|
|
|
{
|
|
|
|
|
|
case PSW_REGNUM:
|
|
|
|
|
|
*((unsigned long *) (regs + m32r_pt_regs_offset[i])) =
|
|
|
|
|
|
((0x00c1 & bbpsw) << 8) | ((0xc100 & psw) >> 8);
|
|
|
|
|
|
break;
|
|
|
|
|
|
case CBR_REGNUM:
|
|
|
|
|
|
*((unsigned long *) (regs + m32r_pt_regs_offset[i])) =
|
|
|
|
|
|
((psw >> 8) & 1);
|
|
|
|
|
|
break;
|
|
|
|
|
|
case M32R_SP_REGNUM:
|
|
|
|
|
|
if (psw & 0x8000)
|
|
|
|
|
|
*((unsigned long *) (regs + m32r_pt_regs_offset[i])) =
|
|
|
|
|
|
*((unsigned long *) (regs + SPU_OFFSET));
|
|
|
|
|
|
else
|
|
|
|
|
|
*((unsigned long *) (regs + m32r_pt_regs_offset[i])) =
|
|
|
|
|
|
*((unsigned long *) (regs + SPI_OFFSET));
|
|
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2007-06-15 22:34:13 +00:00
|
|
|
|
regcache_raw_supply (regcache, i,
|
2004-11-12 01:00:41 +00:00
|
|
|
|
regs + m32r_pt_regs_offset[i]);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2014-03-03 09:31:21 +00:00
|
|
|
|
static const struct regset m32r_linux_gregset = {
|
2004-11-12 01:00:41 +00:00
|
|
|
|
NULL, m32r_linux_supply_gregset
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const struct regset *
|
|
|
|
|
|
m32r_linux_regset_from_core_section (struct gdbarch *core_arch,
|
|
|
|
|
|
const char *sect_name, size_t sect_size)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (core_arch);
|
|
|
|
|
|
if (strcmp (sect_name, ".reg") == 0)
|
|
|
|
|
|
return &m32r_linux_gregset;
|
|
|
|
|
|
return NULL;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2004-10-01 07:29:34 +00:00
|
|
|
|
static void
|
|
|
|
|
|
m32r_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
|
|
|
2010-08-04 15:27:57 +00:00
|
|
|
|
linux_init_abi (info, gdbarch);
|
|
|
|
|
|
|
2004-10-01 07:29:34 +00:00
|
|
|
|
/* Since EVB register is not available for native debug, we reduce
|
|
|
|
|
|
the number of registers. */
|
|
|
|
|
|
set_gdbarch_num_regs (gdbarch, M32R_NUM_REGS - 1);
|
|
|
|
|
|
|
2008-06-28 17:29:04 +00:00
|
|
|
|
frame_unwind_append_unwinder (gdbarch, &m32r_linux_sigtramp_frame_unwind);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
|
|
|
|
|
|
/* GNU/Linux uses SVR4-style shared libraries. */
|
2006-11-28 21:41:03 +00:00
|
|
|
|
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
set_solib_svr4_fetch_link_map_offsets
|
|
|
|
|
|
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
|
2004-11-12 01:00:41 +00:00
|
|
|
|
|
|
|
|
|
|
/* Core file support. */
|
|
|
|
|
|
set_gdbarch_regset_from_core_section
|
|
|
|
|
|
(gdbarch, m32r_linux_regset_from_core_section);
|
2005-03-31 19:58:26 +00:00
|
|
|
|
|
|
|
|
|
|
/* Enable TLS support. */
|
|
|
|
|
|
set_gdbarch_fetch_tls_load_module_address (gdbarch,
|
|
|
|
|
|
svr4_fetch_objfile_link_map);
|
2004-10-01 07:29:34 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
|
|
|
|
|
extern void _initialize_m32r_linux_tdep (void);
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
|
_initialize_m32r_linux_tdep (void)
|
|
|
|
|
|
{
|
|
|
|
|
|
gdbarch_register_osabi (bfd_arch_m32r, 0, GDB_OSABI_LINUX,
|
|
|
|
|
|
m32r_linux_init_abi);
|
|
|
|
|
|
}
|
