mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
6d3d12ebef
This commit includes string.h in common-defs.h and removes all other inclusions. gdb/ 2014-08-07 Gary Benson <gbenson@redhat.com> * common/common-defs.h: Include string.h. * aarch64-tdep.c: Do not include string.h. * ada-exp.y: Likewise. * ada-lang.c: Likewise. * ada-lex.l: Likewise. * ada-typeprint.c: Likewise. * ada-valprint.c: Likewise. * aix-thread.c: Likewise. * alpha-linux-tdep.c: Likewise. * alpha-mdebug-tdep.c: Likewise. * alpha-nat.c: Likewise. * alpha-osf1-tdep.c: Likewise. * alpha-tdep.c: Likewise. * alphanbsd-tdep.c: Likewise. * amd64-dicos-tdep.c: Likewise. * amd64-linux-tdep.c: Likewise. * amd64-nat.c: Likewise. * amd64-sol2-tdep.c: Likewise. * amd64fbsd-tdep.c: Likewise. * amd64obsd-tdep.c: Likewise. * arch-utils.c: Likewise. * arm-linux-nat.c: Likewise. * arm-linux-tdep.c: Likewise. * arm-tdep.c: Likewise. * arm-wince-tdep.c: Likewise. * armbsd-tdep.c: Likewise. * armnbsd-nat.c: Likewise. * armnbsd-tdep.c: Likewise. * armobsd-tdep.c: Likewise. * avr-tdep.c: Likewise. * ax-gdb.c: Likewise. * ax-general.c: Likewise. * bcache.c: Likewise. * bfin-tdep.c: Likewise. * breakpoint.c: Likewise. * build-id.c: Likewise. * buildsym.c: Likewise. * c-exp.y: Likewise. * c-lang.c: Likewise. * c-typeprint.c: Likewise. * c-valprint.c: Likewise. * charset.c: Likewise. * cli-out.c: Likewise. * cli/cli-cmds.c: Likewise. * cli/cli-decode.c: Likewise. * cli/cli-dump.c: Likewise. * cli/cli-interp.c: Likewise. * cli/cli-logging.c: Likewise. * cli/cli-script.c: Likewise. * cli/cli-setshow.c: Likewise. * cli/cli-utils.c: Likewise. * coffread.c: Likewise. * common/agent.c: Likewise. * common/buffer.c: Likewise. * common/buffer.h: Likewise. * common/common-utils.c: Likewise. * common/filestuff.c: Likewise. * common/filestuff.c: Likewise. * common/format.c: Likewise. * common/print-utils.c: Likewise. * common/rsp-low.c: Likewise. * common/signals.c: Likewise. * common/vec.h: Likewise. * common/xml-utils.c: Likewise. * core-regset.c: Likewise. * corefile.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-name-parser.y: Likewise. * cp-support.c: Likewise. * cp-valprint.c: Likewise. * cris-tdep.c: Likewise. * d-exp.y: Likewise. * darwin-nat.c: Likewise. * dbxread.c: Likewise. * dcache.c: Likewise. * demangle.c: Likewise. * dicos-tdep.c: Likewise. * disasm.c: Likewise. * doublest.c: Likewise. * dsrec.c: Likewise. * dummy-frame.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * elfread.c: Likewise. * environ.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * exceptions.c: Likewise. * exec.c: Likewise. * expprint.c: Likewise. * f-exp.y: Likewise. * f-lang.c: Likewise. * f-typeprint.c: Likewise. * f-valprint.c: Likewise. * fbsd-nat.c: Likewise. * findcmd.c: Likewise. * findvar.c: Likewise. * fork-child.c: Likewise. * frame.c: Likewise. * frv-linux-tdep.c: Likewise. * frv-tdep.c: Likewise. * gdb.c: Likewise. * gdb_bfd.c: Likewise. * gdbarch.c: Likewise. * gdbarch.sh: Likewise. * gdbtypes.c: Likewise. * gnu-nat.c: Likewise. * gnu-v2-abi.c: Likewise. * gnu-v3-abi.c: Likewise. * go-exp.y: Likewise. * go-lang.c: Likewise. * go32-nat.c: Likewise. * guile/guile.c: Likewise. * guile/scm-auto-load.c: Likewise. * hppa-hpux-tdep.c: Likewise. * hppa-linux-nat.c: Likewise. * hppanbsd-tdep.c: Likewise. * hppaobsd-tdep.c: Likewise. * i386-cygwin-tdep.c: Likewise. * i386-dicos-tdep.c: Likewise. * i386-linux-tdep.c: Likewise. * i386-nto-tdep.c: Likewise. * i386-sol2-tdep.c: Likewise. * i386-tdep.c: Likewise. * i386bsd-tdep.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-tdep.c: Likewise. * i386obsd-tdep.c: Likewise. * i387-tdep.c: Likewise. * ia64-libunwind-tdep.c: Likewise. * ia64-linux-nat.c: Likewise. * inf-child.c: Likewise. * inf-ptrace.c: Likewise. * inf-ttrace.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * inflow.c: Likewise. * infrun.c: Likewise. * interps.c: Likewise. * iq2000-tdep.c: Likewise. * irix5-nat.c: Likewise. * jv-exp.y: Likewise. * jv-lang.c: Likewise. * jv-typeprint.c: Likewise. * jv-valprint.c: Likewise. * language.c: Likewise. * linux-fork.c: Likewise. * linux-nat.c: Likewise. * lm32-tdep.c: Likewise. * m2-exp.y: Likewise. * m2-typeprint.c: Likewise. * m32c-tdep.c: Likewise. * m32r-linux-nat.c: Likewise. * m32r-linux-tdep.c: Likewise. * m32r-rom.c: Likewise. * m32r-tdep.c: Likewise. * m68hc11-tdep.c: Likewise. * m68k-tdep.c: Likewise. * m68kbsd-tdep.c: Likewise. * m68klinux-nat.c: Likewise. * m68klinux-tdep.c: Likewise. * m88k-tdep.c: Likewise. * machoread.c: Likewise. * macrocmd.c: Likewise. * main.c: Likewise. * mdebugread.c: Likewise. * mem-break.c: Likewise. * memattr.c: Likewise. * memory-map.c: Likewise. * mep-tdep.c: Likewise. * mi/mi-cmd-break.c: Likewise. * mi/mi-cmd-disas.c: Likewise. * mi/mi-cmd-env.c: Likewise. * mi/mi-cmd-stack.c: Likewise. * mi/mi-cmd-var.c: Likewise. * mi/mi-cmds.c: Likewise. * mi/mi-console.c: Likewise. * mi/mi-getopt.c: Likewise. * mi/mi-interp.c: Likewise. * mi/mi-main.c: Likewise. * mi/mi-parse.c: Likewise. * microblaze-rom.c: Likewise. * microblaze-tdep.c: Likewise. * mingw-hdep.c: Likewise. * minidebug.c: Likewise. * minsyms.c: Likewise. * mips-irix-tdep.c: Likewise. * mips-linux-tdep.c: Likewise. * mips-tdep.c: Likewise. * mips64obsd-tdep.c: Likewise. * mipsnbsd-tdep.c: Likewise. * mipsread.c: Likewise. * mn10300-linux-tdep.c: Likewise. * mn10300-tdep.c: Likewise. * monitor.c: Likewise. * moxie-tdep.c: Likewise. * mt-tdep.c: Likewise. * nat/linux-btrace.c: Likewise. * nat/linux-osdata.c: Likewise. * nat/linux-procfs.c: Likewise. * nat/linux-ptrace.c: Likewise. * nat/linux-waitpid.c: Likewise. * nbsd-tdep.c: Likewise. * nios2-linux-tdep.c: Likewise. * nto-procfs.c: Likewise. * nto-tdep.c: Likewise. * objc-lang.c: Likewise. * objfiles.c: Likewise. * opencl-lang.c: Likewise. * osabi.c: Likewise. * osdata.c: Likewise. * p-exp.y: Likewise. * p-lang.c: Likewise. * p-typeprint.c: Likewise. * parse.c: Likewise. * posix-hdep.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-sysv-tdep.c: Likewise. * ppcfbsd-tdep.c: Likewise. * ppcnbsd-tdep.c: Likewise. * ppcobsd-tdep.c: Likewise. * printcmd.c: Likewise. * procfs.c: Likewise. * prologue-value.c: Likewise. * python/py-auto-load.c: Likewise. * python/py-gdb-readline.c: Likewise. * ravenscar-thread.c: Likewise. * regcache.c: Likewise. * registry.c: Likewise. * remote-fileio.c: Likewise. * remote-m32r-sdi.c: Likewise. * remote-mips.c: Likewise. * remote-notif.c: Likewise. * remote-sim.c: Likewise. * remote.c: Likewise. * reverse.c: Likewise. * rs6000-aix-tdep.c: Likewise. * ser-base.c: Likewise. * ser-go32.c: Likewise. * ser-mingw.c: Likewise. * ser-pipe.c: Likewise. * ser-tcp.c: Likewise. * ser-unix.c: Likewise. * serial.c: Likewise. * sh-tdep.c: Likewise. * sh64-tdep.c: Likewise. * shnbsd-tdep.c: Likewise. * skip.c: Likewise. * sol-thread.c: Likewise. * solib-dsbt.c: Likewise. * solib-frv.c: Likewise. * solib-osf.c: Likewise. * solib-som.c: Likewise. * solib-spu.c: Likewise. * solib-target.c: Likewise. * solib.c: Likewise. * somread.c: Likewise. * source.c: Likewise. * sparc-nat.c: Likewise. * sparc-sol2-tdep.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * sparc64fbsd-tdep.c: Likewise. * sparc64nbsd-tdep.c: Likewise. * sparcnbsd-tdep.c: Likewise. * spu-linux-nat.c: Likewise. * spu-multiarch.c: Likewise. * spu-tdep.c: Likewise. * stabsread.c: Likewise. * stack.c: Likewise. * std-regs.c: Likewise. * symfile.c: Likewise. * symmisc.c: Likewise. * symtab.c: Likewise. * target.c: Likewise. * thread.c: Likewise. * tilegx-linux-nat.c: Likewise. * tilegx-tdep.c: Likewise. * top.c: Likewise. * tracepoint.c: Likewise. * tui/tui-command.c: Likewise. * tui/tui-data.c: Likewise. * tui/tui-disasm.c: Likewise. * tui/tui-file.c: Likewise. * tui/tui-layout.c: Likewise. * tui/tui-out.c: Likewise. * tui/tui-regs.c: Likewise. * tui/tui-source.c: Likewise. * tui/tui-stack.c: Likewise. * tui/tui-win.c: Likewise. * tui/tui-windata.c: Likewise. * tui/tui-winsource.c: Likewise. * typeprint.c: Likewise. * ui-file.c: Likewise. * ui-out.c: Likewise. * user-regs.c: Likewise. * utils.c: Likewise. * v850-tdep.c: Likewise. * valarith.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * vax-tdep.c: Likewise. * vaxnbsd-tdep.c: Likewise. * vaxobsd-tdep.c: Likewise. * windows-nat.c: Likewise. * xcoffread.c: Likewise. * xml-support.c: Likewise. * xstormy16-tdep.c: Likewise. * xtensa-linux-nat.c: Likewise. gdb/gdbserver/ 2014-08-07 Gary Benson <gbenson@redhat.com> * server.h: Do not include string.h. * event-loop.c: Likewise. * linux-low.c: Likewise. * regcache.c: Likewise. * remote-utils.c: Likewise. * spu-low.c: Likewise. * utils.c: Likewise.
340 lines
9.0 KiB
C
340 lines
9.0 KiB
C
/* The find command.
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Copyright (C) 2008-2014 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 3 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, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "arch-utils.h"
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#include <ctype.h>
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#include "gdbcmd.h"
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#include "value.h"
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#include "target.h"
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#include "cli/cli-utils.h"
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/* Copied from bfd_put_bits. */
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static void
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put_bits (bfd_uint64_t data, gdb_byte *buf, int bits, bfd_boolean big_p)
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{
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int i;
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int bytes;
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gdb_assert (bits % 8 == 0);
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bytes = bits / 8;
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for (i = 0; i < bytes; i++)
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{
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int index = big_p ? bytes - i - 1 : i;
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buf[index] = data & 0xff;
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data >>= 8;
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}
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}
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/* Subroutine of find_command to simplify it.
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Parse the arguments of the "find" command. */
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static void
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parse_find_args (char *args, ULONGEST *max_countp,
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gdb_byte **pattern_bufp, ULONGEST *pattern_lenp,
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CORE_ADDR *start_addrp, ULONGEST *search_space_lenp,
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bfd_boolean big_p)
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{
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/* Default to using the specified type. */
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char size = '\0';
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ULONGEST max_count = ~(ULONGEST) 0;
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/* Buffer to hold the search pattern. */
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gdb_byte *pattern_buf;
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/* Current size of search pattern buffer.
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We realloc space as needed. */
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#define INITIAL_PATTERN_BUF_SIZE 100
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ULONGEST pattern_buf_size = INITIAL_PATTERN_BUF_SIZE;
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/* Pointer to one past the last in-use part of pattern_buf. */
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gdb_byte *pattern_buf_end;
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ULONGEST pattern_len;
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CORE_ADDR start_addr;
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ULONGEST search_space_len;
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const char *s = args;
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struct cleanup *old_cleanups;
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struct value *v;
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if (args == NULL)
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error (_("Missing search parameters."));
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pattern_buf = xmalloc (pattern_buf_size);
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pattern_buf_end = pattern_buf;
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old_cleanups = make_cleanup (free_current_contents, &pattern_buf);
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/* Get search granularity and/or max count if specified.
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They may be specified in either order, together or separately. */
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while (*s == '/')
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{
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++s;
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while (*s != '\0' && *s != '/' && !isspace (*s))
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{
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if (isdigit (*s))
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{
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max_count = atoi (s);
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while (isdigit (*s))
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++s;
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continue;
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}
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switch (*s)
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{
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case 'b':
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case 'h':
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case 'w':
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case 'g':
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size = *s++;
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break;
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default:
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error (_("Invalid size granularity."));
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}
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}
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s = skip_spaces_const (s);
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}
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/* Get the search range. */
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v = parse_to_comma_and_eval (&s);
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start_addr = value_as_address (v);
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if (*s == ',')
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++s;
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s = skip_spaces_const (s);
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if (*s == '+')
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{
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LONGEST len;
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++s;
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v = parse_to_comma_and_eval (&s);
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len = value_as_long (v);
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if (len == 0)
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{
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do_cleanups (old_cleanups);
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printf_filtered (_("Empty search range.\n"));
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return;
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}
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if (len < 0)
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error (_("Invalid length."));
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/* Watch for overflows. */
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if (len > CORE_ADDR_MAX
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|| (start_addr + len - 1) < start_addr)
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error (_("Search space too large."));
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search_space_len = len;
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}
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else
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{
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CORE_ADDR end_addr;
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v = parse_to_comma_and_eval (&s);
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end_addr = value_as_address (v);
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if (start_addr > end_addr)
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error (_("Invalid search space, end precedes start."));
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search_space_len = end_addr - start_addr + 1;
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/* We don't support searching all of memory
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(i.e. start=0, end = 0xff..ff).
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Bail to avoid overflows later on. */
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if (search_space_len == 0)
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error (_("Overflow in address range "
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"computation, choose smaller range."));
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}
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if (*s == ',')
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++s;
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/* Fetch the search string. */
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while (*s != '\0')
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{
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LONGEST x;
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struct type *t;
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ULONGEST pattern_buf_size_need;
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s = skip_spaces_const (s);
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v = parse_to_comma_and_eval (&s);
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t = value_type (v);
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/* Keep it simple and assume size == 'g' when watching for when we
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need to grow the pattern buf. */
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pattern_buf_size_need = (pattern_buf_end - pattern_buf
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+ max (TYPE_LENGTH (t), sizeof (int64_t)));
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if (pattern_buf_size_need > pattern_buf_size)
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{
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size_t current_offset = pattern_buf_end - pattern_buf;
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pattern_buf_size = pattern_buf_size_need * 2;
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pattern_buf = xrealloc (pattern_buf, pattern_buf_size);
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pattern_buf_end = pattern_buf + current_offset;
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}
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if (size != '\0')
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{
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x = value_as_long (v);
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switch (size)
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{
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case 'b':
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*pattern_buf_end++ = x;
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break;
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case 'h':
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put_bits (x, pattern_buf_end, 16, big_p);
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pattern_buf_end += sizeof (int16_t);
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break;
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case 'w':
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put_bits (x, pattern_buf_end, 32, big_p);
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pattern_buf_end += sizeof (int32_t);
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break;
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case 'g':
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put_bits (x, pattern_buf_end, 64, big_p);
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pattern_buf_end += sizeof (int64_t);
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break;
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}
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}
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else
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{
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memcpy (pattern_buf_end, value_contents (v), TYPE_LENGTH (t));
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pattern_buf_end += TYPE_LENGTH (t);
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}
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if (*s == ',')
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++s;
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s = skip_spaces_const (s);
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}
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if (pattern_buf_end == pattern_buf)
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error (_("Missing search pattern."));
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pattern_len = pattern_buf_end - pattern_buf;
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if (search_space_len < pattern_len)
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error (_("Search space too small to contain pattern."));
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*max_countp = max_count;
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*pattern_bufp = pattern_buf;
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*pattern_lenp = pattern_len;
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*start_addrp = start_addr;
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*search_space_lenp = search_space_len;
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/* We successfully parsed the arguments, leave the freeing of PATTERN_BUF
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to the caller now. */
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discard_cleanups (old_cleanups);
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}
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static void
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find_command (char *args, int from_tty)
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{
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struct gdbarch *gdbarch = get_current_arch ();
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bfd_boolean big_p = gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG;
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/* Command line parameters.
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These are initialized to avoid uninitialized warnings from -Wall. */
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ULONGEST max_count = 0;
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gdb_byte *pattern_buf = 0;
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ULONGEST pattern_len = 0;
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CORE_ADDR start_addr = 0;
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ULONGEST search_space_len = 0;
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/* End of command line parameters. */
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unsigned int found_count;
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CORE_ADDR last_found_addr;
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struct cleanup *old_cleanups;
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parse_find_args (args, &max_count, &pattern_buf, &pattern_len,
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&start_addr, &search_space_len, big_p);
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old_cleanups = make_cleanup (free_current_contents, &pattern_buf);
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/* Perform the search. */
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found_count = 0;
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last_found_addr = 0;
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while (search_space_len >= pattern_len
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&& found_count < max_count)
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{
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/* Offset from start of this iteration to the next iteration. */
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ULONGEST next_iter_incr;
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CORE_ADDR found_addr;
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int found = target_search_memory (start_addr, search_space_len,
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pattern_buf, pattern_len, &found_addr);
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if (found <= 0)
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break;
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print_address (gdbarch, found_addr, gdb_stdout);
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printf_filtered ("\n");
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++found_count;
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last_found_addr = found_addr;
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/* Begin next iteration at one byte past this match. */
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next_iter_incr = (found_addr - start_addr) + 1;
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/* For robustness, we don't let search_space_len go -ve here. */
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if (search_space_len >= next_iter_incr)
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search_space_len -= next_iter_incr;
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else
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search_space_len = 0;
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start_addr += next_iter_incr;
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}
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/* Record and print the results. */
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set_internalvar_integer (lookup_internalvar ("numfound"), found_count);
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if (found_count > 0)
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{
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struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
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set_internalvar (lookup_internalvar ("_"),
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value_from_pointer (ptr_type, last_found_addr));
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}
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if (found_count == 0)
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printf_filtered ("Pattern not found.\n");
|
|
else
|
|
printf_filtered ("%d pattern%s found.\n", found_count,
|
|
found_count > 1 ? "s" : "");
|
|
|
|
do_cleanups (old_cleanups);
|
|
}
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
|
extern initialize_file_ftype _initialize_mem_search;
|
|
|
|
void
|
|
_initialize_mem_search (void)
|
|
{
|
|
add_cmd ("find", class_vars, find_command, _("\
|
|
Search memory for a sequence of bytes.\n\
|
|
Usage:\nfind \
|
|
[/size-char] [/max-count] start-address, end-address, expr1 [, expr2 ...]\n\
|
|
find [/size-char] [/max-count] start-address, +length, expr1 [, expr2 ...]\n\
|
|
size-char is one of b,h,w,g for 8,16,32,64 bit values respectively,\n\
|
|
and if not specified the size is taken from the type of the expression\n\
|
|
in the current language.\n\
|
|
Note that this means for example that in the case of C-like languages\n\
|
|
a search for an untyped 0x42 will search for \"(int) 0x42\"\n\
|
|
which is typically four bytes.\n\
|
|
\n\
|
|
The address of the last match is stored as the value of \"$_\".\n\
|
|
Convenience variable \"$numfound\" is set to the number of matches."),
|
|
&cmdlist);
|
|
}
|