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06b3c5bdb0
This patch renames the .c source files in gdbsupport to .cc.
In the gdb directory, there is an argument against renaming the source
files, which is that it makes using some git commands more difficult to
do archeology. Some commands have some kind of "follow" option that
makes git try to follow renames, but it doesn't work in all situations.
Given that we have just moved the gdbsupport directory, that argument
doesn't hold for source files in that directory. I therefore suggest
renaming them to .cc, so that they are automatically recognized as C++
by various tools and editors.
The original motivation behind this is that when building gdbsupport
with clang, I get:
CC agent.o
clang: error: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Werror,-Wdeprecated]
In the gdb/ directory, we make clang happy by passing "-x c++". We
could do this in gdbsupport too, but I think that renaming the files is
a better long-term solution.
gdbserver still does its own build of gdbsupport, so a few changes in
its Makefile are necessary.
gdbsupport/ChangeLog:
* Makefile.am: Rename source files from .c to .cc.
(CC, CFLAGS): Don't override.
(AM_CFLAGS): Rename to ...
(AM_CXXFLAGS): ... this.
* Makefile.in: Re-generate.
* %.c: Rename to %.cc.
gdbserver/ChangeLog:
* Makefile.in: Rename gdbsupport source files from .c to .cc.
256 lines
6.2 KiB
C++
256 lines
6.2 KiB
C++
/* File-I/O functions for GDB, the GNU debugger.
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Copyright (C) 2003-2020 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 "common-defs.h"
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#include "fileio.h"
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#include <sys/stat.h>
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#include <fcntl.h>
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/* See fileio.h. */
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int
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host_to_fileio_error (int error)
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{
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switch (error)
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{
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case EPERM:
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return FILEIO_EPERM;
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case ENOENT:
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return FILEIO_ENOENT;
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case EINTR:
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return FILEIO_EINTR;
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case EIO:
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return FILEIO_EIO;
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case EBADF:
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return FILEIO_EBADF;
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case EACCES:
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return FILEIO_EACCES;
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case EFAULT:
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return FILEIO_EFAULT;
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case EBUSY:
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return FILEIO_EBUSY;
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case EEXIST:
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return FILEIO_EEXIST;
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case ENODEV:
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return FILEIO_ENODEV;
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case ENOTDIR:
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return FILEIO_ENOTDIR;
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case EISDIR:
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return FILEIO_EISDIR;
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case EINVAL:
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return FILEIO_EINVAL;
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case ENFILE:
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return FILEIO_ENFILE;
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case EMFILE:
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return FILEIO_EMFILE;
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case EFBIG:
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return FILEIO_EFBIG;
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case ENOSPC:
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return FILEIO_ENOSPC;
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case ESPIPE:
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return FILEIO_ESPIPE;
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case EROFS:
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return FILEIO_EROFS;
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case ENOSYS:
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return FILEIO_ENOSYS;
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case ENAMETOOLONG:
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return FILEIO_ENAMETOOLONG;
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}
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return FILEIO_EUNKNOWN;
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}
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/* See fileio.h. */
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int
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fileio_to_host_openflags (int fileio_open_flags, int *open_flags_p)
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{
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int open_flags = 0;
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if (fileio_open_flags & ~FILEIO_O_SUPPORTED)
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return -1;
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if (fileio_open_flags & FILEIO_O_CREAT)
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open_flags |= O_CREAT;
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if (fileio_open_flags & FILEIO_O_EXCL)
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open_flags |= O_EXCL;
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if (fileio_open_flags & FILEIO_O_TRUNC)
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open_flags |= O_TRUNC;
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if (fileio_open_flags & FILEIO_O_APPEND)
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open_flags |= O_APPEND;
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if (fileio_open_flags & FILEIO_O_RDONLY)
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open_flags |= O_RDONLY;
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if (fileio_open_flags & FILEIO_O_WRONLY)
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open_flags |= O_WRONLY;
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if (fileio_open_flags & FILEIO_O_RDWR)
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open_flags |= O_RDWR;
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/* On systems supporting binary and text mode, always open files
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in binary mode. */
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#ifdef O_BINARY
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open_flags |= O_BINARY;
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#endif
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*open_flags_p = open_flags;
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return 0;
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}
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/* See fileio.h. */
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int
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fileio_to_host_mode (int fileio_mode, mode_t *mode_p)
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{
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mode_t mode = 0;
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if (fileio_mode & ~FILEIO_S_SUPPORTED)
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return -1;
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if (fileio_mode & FILEIO_S_IFREG)
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mode |= S_IFREG;
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if (fileio_mode & FILEIO_S_IFDIR)
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mode |= S_IFDIR;
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if (fileio_mode & FILEIO_S_IFCHR)
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mode |= S_IFCHR;
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if (fileio_mode & FILEIO_S_IRUSR)
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mode |= S_IRUSR;
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if (fileio_mode & FILEIO_S_IWUSR)
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mode |= S_IWUSR;
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if (fileio_mode & FILEIO_S_IXUSR)
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mode |= S_IXUSR;
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#ifdef S_IRGRP
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if (fileio_mode & FILEIO_S_IRGRP)
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mode |= S_IRGRP;
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#endif
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#ifdef S_IWGRP
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if (fileio_mode & FILEIO_S_IWGRP)
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mode |= S_IWGRP;
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#endif
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#ifdef S_IXGRP
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if (fileio_mode & FILEIO_S_IXGRP)
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mode |= S_IXGRP;
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#endif
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if (fileio_mode & FILEIO_S_IROTH)
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mode |= S_IROTH;
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#ifdef S_IWOTH
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if (fileio_mode & FILEIO_S_IWOTH)
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mode |= S_IWOTH;
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#endif
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#ifdef S_IXOTH
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if (fileio_mode & FILEIO_S_IXOTH)
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mode |= S_IXOTH;
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#endif
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*mode_p = mode;
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return 0;
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}
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/* Convert a host-format mode_t into a bitmask of File-I/O flags. */
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static LONGEST
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fileio_mode_pack (mode_t mode)
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{
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mode_t tmode = 0;
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if (S_ISREG (mode))
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tmode |= FILEIO_S_IFREG;
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if (S_ISDIR (mode))
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tmode |= FILEIO_S_IFDIR;
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if (S_ISCHR (mode))
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tmode |= FILEIO_S_IFCHR;
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if (mode & S_IRUSR)
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tmode |= FILEIO_S_IRUSR;
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if (mode & S_IWUSR)
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tmode |= FILEIO_S_IWUSR;
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if (mode & S_IXUSR)
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tmode |= FILEIO_S_IXUSR;
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#ifdef S_IRGRP
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if (mode & S_IRGRP)
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tmode |= FILEIO_S_IRGRP;
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#endif
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#ifdef S_IWGRP
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if (mode & S_IWGRP)
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tmode |= FILEIO_S_IWGRP;
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#endif
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#ifdef S_IXGRP
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if (mode & S_IXGRP)
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tmode |= FILEIO_S_IXGRP;
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#endif
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if (mode & S_IROTH)
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tmode |= FILEIO_S_IROTH;
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#ifdef S_IWOTH
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if (mode & S_IWOTH)
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tmode |= FILEIO_S_IWOTH;
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#endif
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#ifdef S_IXOTH
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if (mode & S_IXOTH)
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tmode |= FILEIO_S_IXOTH;
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#endif
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return tmode;
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}
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/* Pack a host-format mode_t into an fio_mode_t. */
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static void
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host_to_fileio_mode (mode_t num, fio_mode_t fnum)
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{
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host_to_bigendian (fileio_mode_pack (num), (char *) fnum, 4);
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}
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/* Pack a host-format integer into an fio_ulong_t. */
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static void
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host_to_fileio_ulong (LONGEST num, fio_ulong_t fnum)
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{
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host_to_bigendian (num, (char *) fnum, 8);
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}
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/* See fileio.h. */
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void
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host_to_fileio_stat (struct stat *st, struct fio_stat *fst)
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{
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LONGEST blksize;
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host_to_fileio_uint ((long) st->st_dev, fst->fst_dev);
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host_to_fileio_uint ((long) st->st_ino, fst->fst_ino);
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host_to_fileio_mode (st->st_mode, fst->fst_mode);
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host_to_fileio_uint ((long) st->st_nlink, fst->fst_nlink);
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host_to_fileio_uint ((long) st->st_uid, fst->fst_uid);
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host_to_fileio_uint ((long) st->st_gid, fst->fst_gid);
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host_to_fileio_uint ((long) st->st_rdev, fst->fst_rdev);
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host_to_fileio_ulong ((LONGEST) st->st_size, fst->fst_size);
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#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
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blksize = st->st_blksize;
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#else
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blksize = 512;
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#endif
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host_to_fileio_ulong (blksize, fst->fst_blksize);
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#if HAVE_STRUCT_STAT_ST_BLOCKS
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host_to_fileio_ulong ((LONGEST) st->st_blocks, fst->fst_blocks);
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#else
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/* FIXME: This is correct for DJGPP, but other systems that don't
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have st_blocks, if any, might prefer 512 instead of st_blksize.
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(eliz, 30-12-2003) */
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host_to_fileio_ulong (((LONGEST) st->st_size + blksize - 1)
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/ blksize,
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fst->fst_blocks);
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#endif
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host_to_fileio_time (st->st_atime, fst->fst_atime);
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host_to_fileio_time (st->st_mtime, fst->fst_mtime);
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host_to_fileio_time (st->st_ctime, fst->fst_ctime);
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}
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