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.
274 lines
7.5 KiB
C
274 lines
7.5 KiB
C
/* Host support routines for MinGW, for GDB, the GNU debugger.
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Copyright (C) 2006-2014 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 "main.h"
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#include "serial.h"
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#include "event-loop.h"
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#include "gdb_select.h"
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#include "readline/readline.h"
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#include <windows.h>
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/* This event is signalled whenever an asynchronous SIGINT handler
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needs to perform an action in the main thread. */
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static HANDLE sigint_event;
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/* When SIGINT_EVENT is signalled, gdb_select will call this
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function. */
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struct async_signal_handler *sigint_handler;
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/* The strerror() function can return NULL for errno values that are
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out of range. Provide a "safe" version that always returns a
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printable string.
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The Windows runtime implementation of strerror never returns NULL,
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but does return a useless string for anything above sys_nerr;
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unfortunately this includes all socket-related error codes.
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This replacement tries to find a system-provided error message. */
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char *
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safe_strerror (int errnum)
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{
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static char *buffer;
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int len;
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if (errnum >= 0 && errnum < sys_nerr)
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return strerror (errnum);
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if (buffer)
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{
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LocalFree (buffer);
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buffer = NULL;
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}
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if (FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER
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| FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, errnum,
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MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPTSTR) &buffer, 0, NULL) == 0)
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{
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static char buf[32];
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xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
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return buf;
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}
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/* Windows error messages end with a period and a CR-LF; strip that
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out. */
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len = strlen (buffer);
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if (len > 3 && strcmp (buffer + len - 3, ".\r\n") == 0)
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buffer[len - 3] = '\0';
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return buffer;
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}
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/* Return an absolute file name of the running GDB, if possible, or
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ARGV0 if not. The return value is in malloc'ed storage. */
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char *
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windows_get_absolute_argv0 (const char *argv0)
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{
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char full_name[PATH_MAX];
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if (GetModuleFileName (NULL, full_name, PATH_MAX))
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return xstrdup (full_name);
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return xstrdup (argv0);
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}
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/* Wrapper for select. On Windows systems, where the select interface
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only works for sockets, this uses the GDB serial abstraction to
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handle sockets, consoles, pipes, and serial ports.
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The arguments to this function are the same as the traditional
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arguments to select on POSIX platforms. */
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int
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gdb_select (int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
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struct timeval *timeout)
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{
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static HANDLE never_handle;
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HANDLE handles[MAXIMUM_WAIT_OBJECTS];
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HANDLE h;
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DWORD event;
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DWORD num_handles;
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/* SCBS contains serial control objects corresponding to file
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descriptors in READFDS and WRITEFDS. */
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struct serial *scbs[MAXIMUM_WAIT_OBJECTS];
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/* The number of valid entries in SCBS. */
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size_t num_scbs;
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int fd;
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int num_ready;
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size_t indx;
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num_ready = 0;
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num_handles = 0;
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num_scbs = 0;
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for (fd = 0; fd < n; ++fd)
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{
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HANDLE read = NULL, except = NULL;
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struct serial *scb;
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/* There is no support yet for WRITEFDS. At present, this isn't
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used by GDB -- but we do not want to silently ignore WRITEFDS
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if something starts using it. */
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gdb_assert (!writefds || !FD_ISSET (fd, writefds));
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if ((!readfds || !FD_ISSET (fd, readfds))
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&& (!exceptfds || !FD_ISSET (fd, exceptfds)))
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continue;
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scb = serial_for_fd (fd);
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if (scb)
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{
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serial_wait_handle (scb, &read, &except);
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scbs[num_scbs++] = scb;
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}
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if (read == NULL)
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read = (HANDLE) _get_osfhandle (fd);
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if (except == NULL)
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{
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if (!never_handle)
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never_handle = CreateEvent (0, FALSE, FALSE, 0);
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except = never_handle;
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}
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if (readfds && FD_ISSET (fd, readfds))
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{
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gdb_assert (num_handles < MAXIMUM_WAIT_OBJECTS);
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handles[num_handles++] = read;
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}
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if (exceptfds && FD_ISSET (fd, exceptfds))
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{
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gdb_assert (num_handles < MAXIMUM_WAIT_OBJECTS);
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handles[num_handles++] = except;
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}
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}
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gdb_assert (num_handles < MAXIMUM_WAIT_OBJECTS);
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handles[num_handles++] = sigint_event;
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event = WaitForMultipleObjects (num_handles,
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handles,
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FALSE,
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timeout
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? (timeout->tv_sec * 1000
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+ timeout->tv_usec / 1000)
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: INFINITE);
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/* EVENT can only be a value in the WAIT_ABANDONED_0 range if the
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HANDLES included an abandoned mutex. Since GDB doesn't use
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mutexes, that should never occur. */
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gdb_assert (!(WAIT_ABANDONED_0 <= event
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&& event < WAIT_ABANDONED_0 + num_handles));
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/* We no longer need the helper threads to check for activity. */
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for (indx = 0; indx < num_scbs; ++indx)
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serial_done_wait_handle (scbs[indx]);
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if (event == WAIT_FAILED)
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return -1;
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if (event == WAIT_TIMEOUT)
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return 0;
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/* Run through the READFDS, clearing bits corresponding to descriptors
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for which input is unavailable. */
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h = handles[event - WAIT_OBJECT_0];
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for (fd = 0, indx = 0; fd < n; ++fd)
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{
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HANDLE fd_h;
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if ((!readfds || !FD_ISSET (fd, readfds))
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&& (!exceptfds || !FD_ISSET (fd, exceptfds)))
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continue;
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if (readfds && FD_ISSET (fd, readfds))
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{
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fd_h = handles[indx++];
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/* This handle might be ready, even though it wasn't the handle
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returned by WaitForMultipleObjects. */
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if (fd_h != h && WaitForSingleObject (fd_h, 0) != WAIT_OBJECT_0)
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FD_CLR (fd, readfds);
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else
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num_ready++;
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}
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if (exceptfds && FD_ISSET (fd, exceptfds))
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{
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fd_h = handles[indx++];
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/* This handle might be ready, even though it wasn't the handle
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returned by WaitForMultipleObjects. */
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if (fd_h != h && WaitForSingleObject (fd_h, 0) != WAIT_OBJECT_0)
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FD_CLR (fd, exceptfds);
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else
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num_ready++;
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}
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}
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/* With multi-threaded SIGINT handling, there is a race between the
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readline signal handler and GDB. It may still be in
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rl_prep_terminal in another thread. Do not return until it is
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done; we can check the state here because we never longjmp from
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signal handlers on Windows. */
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while (RL_ISSTATE (RL_STATE_SIGHANDLER))
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Sleep (1);
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if (h == sigint_event
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|| WaitForSingleObject (sigint_event, 0) == WAIT_OBJECT_0)
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{
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if (sigint_handler != NULL)
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call_async_signal_handler (sigint_handler);
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if (num_ready == 0)
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{
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errno = EINTR;
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return -1;
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}
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}
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return num_ready;
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}
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/* Wrapper for the body of signal handlers. On Windows systems, a
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SIGINT handler runs in its own thread. We can't longjmp from
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there, and we shouldn't even prompt the user. Delay HANDLER
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until the main thread is next in gdb_select. */
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void
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gdb_call_async_signal_handler (struct async_signal_handler *handler,
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int immediate_p)
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{
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if (immediate_p)
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sigint_handler = handler;
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else
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{
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mark_async_signal_handler (handler);
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sigint_handler = NULL;
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}
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SetEvent (sigint_event);
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}
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/* -Wmissing-prototypes */
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extern initialize_file_ftype _initialize_mingw_hdep;
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void
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_initialize_mingw_hdep (void)
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{
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sigint_event = CreateEvent (0, FALSE, FALSE, 0);
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}
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