old-cross-binutils/gdb/posix-hdep.c

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/* Host support routines for MinGW, for GDB, the GNU debugger.
Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "event-loop.h"
#include "gdb_string.h"
* NEWS: Mention native Windows support. * Makefile.in (gdb_select_h, ser_tcp_h): New. (ALLDEPFILES): Add ser-mingw.c. (event-loop.o, inflow.o, mingw-hdep.o, posix-hdep.o, ser-base.o) (ser-tcp.o, ser-unix.o): Update. (ser-mingw.o): New rule. * configure: Regenerated. * configure.ac: Add ser-mingw.o for mingw32. * ser-mingw.c: New file. * event-loop.c: Include "gdb_select.h". (gdb_select): Remove, moved to mingw-hdep.c and posix-hdep.c. * ser-base.c: Include "gdb_select.h". (ser_base_wait_for): Use gdb_select. * serial.c (serial_for_fd): New function. (serial_fdopen): Try "terminal" before "hardwire". Initialize the allocated struct serial. (serial_wait_handle): New function. * serial.h (serial_for_fd, serial_wait_handle): New prototypes. (struct serial_ops) [USE_WIN32API]: Add wait_handle. * gdb_select.h: New file. * ser-tcp.c: Include "ser-tcp.h". Remove unused "ser-unix.h" include. (net_close, net_read_prim, net_write_prim): Make global. (net_open): Likewise. Pass an exception set to select. Whitespace fix. Document why we can not use gdb_select. (_initialize_ser_tcp) [USE_WIN32API]: Do not register TCP support here. * ser-tcp.h: New file. * inflow.c (gdb_has_a_terminal): Don't initialize stdin_serial here. (handle_sigio): Use gdb_select. (initialize_stdin_serial): New function. * terminal.h (initialize_stdin_serial): New prototype. * top.c (gdb_init): Call initialize_stdin_serial. * mingw-hdep.c (gdb_select): New function, moved from gdb_select in event-loop.c. Add exception condition support. Use serial_for_fd and serial_wait_handle. Fix timeout handling. * posix-hdep.c: Include "gdb_select.h". (gdb_select): New function. * remote-st.c (connect_command): Use gdb_select. * ser-unix.c: Include "gdb_select.h". (hardwire_send_break, wait_for): Use gdb_select.
2006-02-10 22:01:43 +00:00
#include "gdb_select.h"
/* The strerror() function can return NULL for errno values that are
out of range. Provide a "safe" version that always returns a
printable string. */
char *
safe_strerror (int errnum)
{
char *msg;
msg = strerror (errnum);
if (msg == NULL)
{
static char buf[32];
xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
msg = buf;
}
return (msg);
}
* NEWS: Mention native Windows support. * Makefile.in (gdb_select_h, ser_tcp_h): New. (ALLDEPFILES): Add ser-mingw.c. (event-loop.o, inflow.o, mingw-hdep.o, posix-hdep.o, ser-base.o) (ser-tcp.o, ser-unix.o): Update. (ser-mingw.o): New rule. * configure: Regenerated. * configure.ac: Add ser-mingw.o for mingw32. * ser-mingw.c: New file. * event-loop.c: Include "gdb_select.h". (gdb_select): Remove, moved to mingw-hdep.c and posix-hdep.c. * ser-base.c: Include "gdb_select.h". (ser_base_wait_for): Use gdb_select. * serial.c (serial_for_fd): New function. (serial_fdopen): Try "terminal" before "hardwire". Initialize the allocated struct serial. (serial_wait_handle): New function. * serial.h (serial_for_fd, serial_wait_handle): New prototypes. (struct serial_ops) [USE_WIN32API]: Add wait_handle. * gdb_select.h: New file. * ser-tcp.c: Include "ser-tcp.h". Remove unused "ser-unix.h" include. (net_close, net_read_prim, net_write_prim): Make global. (net_open): Likewise. Pass an exception set to select. Whitespace fix. Document why we can not use gdb_select. (_initialize_ser_tcp) [USE_WIN32API]: Do not register TCP support here. * ser-tcp.h: New file. * inflow.c (gdb_has_a_terminal): Don't initialize stdin_serial here. (handle_sigio): Use gdb_select. (initialize_stdin_serial): New function. * terminal.h (initialize_stdin_serial): New prototype. * top.c (gdb_init): Call initialize_stdin_serial. * mingw-hdep.c (gdb_select): New function, moved from gdb_select in event-loop.c. Add exception condition support. Use serial_for_fd and serial_wait_handle. Fix timeout handling. * posix-hdep.c: Include "gdb_select.h". (gdb_select): New function. * remote-st.c (connect_command): Use gdb_select. * ser-unix.c: Include "gdb_select.h". (hardwire_send_break, wait_for): Use gdb_select.
2006-02-10 22:01:43 +00:00
/* Wrapper for select. Nothing special needed on POSIX platforms. */
int
gdb_select (int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
struct timeval *timeout)
{
return select (n, readfds, writefds, exceptfds, timeout);
}
/* Wrapper for the body of signal handlers. Nothing special needed on
POSIX platforms. */
void
gdb_call_async_signal_handler (struct async_signal_handler *handler,
int immediate_p)
{
if (immediate_p)
call_async_signal_handler (handler);
else
mark_async_signal_handler (handler);
}