/* Additional functions for the GCC driver on Darwin native.
|
/* Additional functions for the GCC driver on Darwin native.
|
Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
|
Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
|
Contributed by Apple Computer Inc.
|
Contributed by Apple Computer Inc.
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify
|
GCC is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 3, or (at your option)
|
the Free Software Foundation; either version 3, or (at your option)
|
any later version.
|
any later version.
|
|
|
GCC is distributed in the hope that it will be useful,
|
GCC is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
#ifndef CROSS_DIRECTORY_STRUCTURE
|
#ifndef CROSS_DIRECTORY_STRUCTURE
|
#include "config.h"
|
#include "config.h"
|
#include "system.h"
|
#include "system.h"
|
#include "coretypes.h"
|
#include "coretypes.h"
|
#include "tm.h"
|
#include "tm.h"
|
#include "gcc.h"
|
#include "gcc.h"
|
#include <sys/sysctl.h>
|
#include <sys/sysctl.h>
|
#include "xregex.h"
|
#include "xregex.h"
|
|
|
#ifndef SWITCH_TAKES_ARG
|
#ifndef SWITCH_TAKES_ARG
|
#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
|
#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
|
#endif
|
#endif
|
|
|
#ifndef WORD_SWITCH_TAKES_ARG
|
#ifndef WORD_SWITCH_TAKES_ARG
|
#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
|
#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
|
#endif
|
#endif
|
|
|
/* When running on a Darwin system and using that system's headers and
|
/* When running on a Darwin system and using that system's headers and
|
libraries, default the -mmacosx-version-min flag to be the version
|
libraries, default the -mmacosx-version-min flag to be the version
|
of the system on which the compiler is running. */
|
of the system on which the compiler is running. */
|
|
|
void
|
void
|
darwin_default_min_version (int * argc_p, char *** argv_p)
|
darwin_default_min_version (int * argc_p, char *** argv_p)
|
{
|
{
|
const int argc = *argc_p;
|
const int argc = *argc_p;
|
char ** const argv = *argv_p;
|
char ** const argv = *argv_p;
|
int i;
|
int i;
|
char osversion[32];
|
char osversion[32];
|
size_t osversion_len = sizeof (osversion) - 1;
|
size_t osversion_len = sizeof (osversion) - 1;
|
static int osversion_name[2] = { CTL_KERN, KERN_OSRELEASE };
|
static int osversion_name[2] = { CTL_KERN, KERN_OSRELEASE };
|
char * version_p;
|
char * version_p;
|
char * version_pend;
|
char * version_pend;
|
int major_vers;
|
int major_vers;
|
char minor_vers[6];
|
char minor_vers[6];
|
static char new_flag[sizeof ("-mmacosx-version-min=10.0.0") + 6];
|
static char new_flag[sizeof ("-mmacosx-version-min=10.0.0") + 6];
|
|
|
/* If the command-line is empty, just return. */
|
/* If the command-line is empty, just return. */
|
if (argc <= 1)
|
if (argc <= 1)
|
return;
|
return;
|
/* Don't do this if the user has specified -b or -V at the start
|
/* Don't do this if the user has specified -b or -V at the start
|
of the command-line. */
|
of the command-line. */
|
if (argv[1][0] == '-'
|
if (argv[1][0] == '-'
|
&& (argv[1][1] == 'V' ||
|
&& (argv[1][1] == 'V' ||
|
((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
|
((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
|
return;
|
return;
|
|
|
/* Don't do this if the user specified -mmacosx-version-min= or
|
/* Don't do this if the user specified -mmacosx-version-min= or
|
-mno-macosx-version-min. */
|
-mno-macosx-version-min. */
|
for (i = 1; i < argc; i++)
|
for (i = 1; i < argc; i++)
|
if (argv[i][0] == '-')
|
if (argv[i][0] == '-')
|
{
|
{
|
const char * const p = argv[i];
|
const char * const p = argv[i];
|
if (strncmp (p, "-mno-macosx-version-min", 23) == 0
|
if (strncmp (p, "-mno-macosx-version-min", 23) == 0
|
|| strncmp (p, "-mmacosx-version-min", 20) == 0)
|
|| strncmp (p, "-mmacosx-version-min", 20) == 0)
|
return;
|
return;
|
|
|
/* It doesn't count if it's an argument to a different switch. */
|
/* It doesn't count if it's an argument to a different switch. */
|
if (p[0] == '-'
|
if (p[0] == '-'
|
&& ((SWITCH_TAKES_ARG (p[1]) > (p[2] != 0))
|
&& ((SWITCH_TAKES_ARG (p[1]) > (p[2] != 0))
|
|| WORD_SWITCH_TAKES_ARG (p + 1)))
|
|| WORD_SWITCH_TAKES_ARG (p + 1)))
|
i++;
|
i++;
|
}
|
}
|
|
|
/* Retrieve the deployment target from the environment and insert
|
/* Retrieve the deployment target from the environment and insert
|
it as a flag. */
|
it as a flag. */
|
{
|
{
|
const char * macosx_deployment_target;
|
const char * macosx_deployment_target;
|
macosx_deployment_target = getenv ("MACOSX_DEPLOYMENT_TARGET");
|
macosx_deployment_target = getenv ("MACOSX_DEPLOYMENT_TARGET");
|
if (macosx_deployment_target
|
if (macosx_deployment_target
|
/* Apparently, an empty string for MACOSX_DEPLOYMENT_TARGET means
|
/* Apparently, an empty string for MACOSX_DEPLOYMENT_TARGET means
|
"use the default". Or, possibly "use 10.1". We choose
|
"use the default". Or, possibly "use 10.1". We choose
|
to ignore the environment variable, as if it was never set. */
|
to ignore the environment variable, as if it was never set. */
|
&& macosx_deployment_target[0])
|
&& macosx_deployment_target[0])
|
{
|
{
|
++*argc_p;
|
++*argc_p;
|
*argv_p = XNEWVEC (char *, *argc_p);
|
*argv_p = XNEWVEC (char *, *argc_p);
|
(*argv_p)[0] = argv[0];
|
(*argv_p)[0] = argv[0];
|
(*argv_p)[1] = concat ("-mmacosx-version-min=",
|
(*argv_p)[1] = concat ("-mmacosx-version-min=",
|
macosx_deployment_target, NULL);
|
macosx_deployment_target, NULL);
|
memcpy (*argv_p + 2, argv + 1, (argc - 1) * sizeof (char *));
|
memcpy (*argv_p + 2, argv + 1, (argc - 1) * sizeof (char *));
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
/* Determine the version of the running OS. If we can't, warn user,
|
/* Determine the version of the running OS. If we can't, warn user,
|
and do nothing. */
|
and do nothing. */
|
if (sysctl (osversion_name, ARRAY_SIZE (osversion_name), osversion,
|
if (sysctl (osversion_name, ARRAY_SIZE (osversion_name), osversion,
|
&osversion_len, NULL, 0) == -1)
|
&osversion_len, NULL, 0) == -1)
|
{
|
{
|
fprintf (stderr, "sysctl for kern.osversion failed: %s\n",
|
fprintf (stderr, "sysctl for kern.osversion failed: %s\n",
|
xstrerror (errno));
|
xstrerror (errno));
|
return;
|
return;
|
}
|
}
|
|
|
/* Try to parse the first two parts of the OS version number. Warn
|
/* Try to parse the first two parts of the OS version number. Warn
|
user and return if it doesn't make sense. */
|
user and return if it doesn't make sense. */
|
if (! ISDIGIT (osversion[0]))
|
if (! ISDIGIT (osversion[0]))
|
goto parse_failed;
|
goto parse_failed;
|
major_vers = osversion[0] - '0';
|
major_vers = osversion[0] - '0';
|
version_p = osversion + 1;
|
version_p = osversion + 1;
|
if (ISDIGIT (*version_p))
|
if (ISDIGIT (*version_p))
|
major_vers = major_vers * 10 + (*version_p++ - '0');
|
major_vers = major_vers * 10 + (*version_p++ - '0');
|
if (major_vers > 4 + 9)
|
if (major_vers > 4 + 9)
|
goto parse_failed;
|
goto parse_failed;
|
if (*version_p++ != '.')
|
if (*version_p++ != '.')
|
goto parse_failed;
|
goto parse_failed;
|
version_pend = strchr(version_p, '.');
|
version_pend = strchr(version_p, '.');
|
if (!version_pend)
|
if (!version_pend)
|
goto parse_failed;
|
goto parse_failed;
|
if (! ISDIGIT (*version_p))
|
if (! ISDIGIT (*version_p))
|
goto parse_failed;
|
goto parse_failed;
|
strncpy(minor_vers, version_p, version_pend - version_p);
|
strncpy(minor_vers, version_p, version_pend - version_p);
|
minor_vers[version_pend - version_p] = '\0';
|
minor_vers[version_pend - version_p] = '\0';
|
|
|
/* The major kernel version number is 4 plus the second OS version
|
/* The major kernel version number is 4 plus the second OS version
|
component. */
|
component. */
|
if (major_vers - 4 <= 4)
|
if (major_vers - 4 <= 4)
|
/* On 10.4 and earlier, the old linker is used which does not
|
/* On 10.4 and earlier, the old linker is used which does not
|
support three-component system versions. */
|
support three-component system versions. */
|
sprintf (new_flag, "-mmacosx-version-min=10.%d", major_vers - 4);
|
sprintf (new_flag, "-mmacosx-version-min=10.%d", major_vers - 4);
|
else
|
else
|
sprintf (new_flag, "-mmacosx-version-min=10.%d.%s", major_vers - 4,
|
sprintf (new_flag, "-mmacosx-version-min=10.%d.%s", major_vers - 4,
|
minor_vers);
|
minor_vers);
|
|
|
/* Add the new flag. */
|
/* Add the new flag. */
|
++*argc_p;
|
++*argc_p;
|
*argv_p = XNEWVEC (char *, *argc_p);
|
*argv_p = XNEWVEC (char *, *argc_p);
|
(*argv_p)[0] = argv[0];
|
(*argv_p)[0] = argv[0];
|
(*argv_p)[1] = new_flag;
|
(*argv_p)[1] = new_flag;
|
memcpy (*argv_p + 2, argv + 1, (argc - 1) * sizeof (char *));
|
memcpy (*argv_p + 2, argv + 1, (argc - 1) * sizeof (char *));
|
return;
|
return;
|
|
|
parse_failed:
|
parse_failed:
|
fprintf (stderr, "couldn't understand kern.osversion `%.*s'\n",
|
fprintf (stderr, "couldn't understand kern.osversion `%.*s'\n",
|
(int) osversion_len, osversion);
|
(int) osversion_len, osversion);
|
return;
|
return;
|
}
|
}
|
|
|
#endif /* CROSS_DIRECTORY_STRUCTURE */
|
#endif /* CROSS_DIRECTORY_STRUCTURE */
|
|
|
