/* Compiler driver program that can handle many languages.
Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of GCC.
static struct obstack collect_obstack;
+/* This is a list of a wrapper program and its arguments.
+ e.g. wrapper_string of "strace,-c"
+ will cause all programs to run as
+ strace -c program arguments
+ instead of just
+ program arguments */
+static const char *wrapper_string;
+
/* Forward declaration for prototypes. */
struct path_prefix;
struct prefix_list;
static void init_spec (void);
static void store_arg (const char *, int, int);
+static void insert_wrapper (const char *);
static char *load_specs (const char *);
static void read_specs (const char *, int);
static void set_spec (const char *, const char *);
static struct compiler *lookup_compiler (const char *, size_t, const char *);
static char *build_search_list (const struct path_prefix *, const char *,
bool, bool);
+static void xputenv (const char *);
static void putenv_from_prefixes (const struct path_prefix *, const char *,
bool);
static int access_check (const char *, int);
#define LINKER_NAME "collect2"
#endif
+#ifdef HAVE_AS_DEBUG_PREFIX_MAP
+#define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
+#else
+#define ASM_MAP ""
+#endif
+
/* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
to the assembler. */
#ifndef ASM_DEBUG_SPEC
# if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
&& defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
-# define ASM_DEBUG_SPEC \
- (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
- ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
- : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
+# define ASM_DEBUG_SPEC \
+ (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
+ ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" ASM_MAP \
+ : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
# else
# if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
-# define ASM_DEBUG_SPEC "%{g*:--gstabs}"
+# define ASM_DEBUG_SPEC "%{g*:--gstabs}" ASM_MAP
# endif
# if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
-# define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
+# define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
# endif
# endif
#endif
%(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
%{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
- %{fopenmp:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
+ %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
%{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
%{coverage:-fprofile-arcs -ftest-coverage}";
static const char *asm_options =
-"%{ftarget-help:%:print-asm-header()} \
-%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
+"%{--target-help:%:print-asm-header()} "
+#if HAVE_GNU_AS
+/* If GNU AS is used, then convert -w (no warnings), -I, and -v
+ to the assembler equivalents. */
+"%{v} %{w:-W} %{I*} "
+#endif
+"%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
static const char *invoke_as =
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
/* Adding -fopenmp should imply pthreads. This is particularly important
for targets that use different start files and suchlike. */
#ifndef GOMP_SELF_SPECS
-#define GOMP_SELF_SPECS "%{fopenmp: -pthread}"
+#define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
#endif
static const char *const driver_self_specs[] = {
{".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
{".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
{".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
- {".f", "#Fortran", 0, 0, 0}, {".for", "#Fortran", 0, 0, 0},
- {".fpp", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
- {".FOR", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
- {".f90", "#Fortran", 0, 0, 0}, {".f95", "#Fortran", 0, 0, 0},
- {".F90", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
+ {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
+ {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
+ {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
+ {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
+ {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
+ {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
+ {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
+ {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
{".r", "#Ratfor", 0, 0, 0},
{".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
{".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
{".s", "@assembler", 0, 1, 0},
{"@assembler",
"%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
+ {".sx", "@assembler-with-cpp", 0, 1, 0},
{".S", "@assembler-with-cpp", 0, 1, 0},
{"@assembler-with-cpp",
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
- "%(trad_capable_cpp) -lang-asm %(cpp_options)\
+ "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
%{E|M|MM:%(cpp_debug_options)}\
%{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
as %(asm_debug) %(asm_options) %|.s %A }}}}"
#else
- "%(trad_capable_cpp) -lang-asm %(cpp_options)\
+ "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
%{E|M|MM:%(cpp_debug_options)}\
%{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
as %(asm_debug) %(asm_options) %m.s %A }}}}"
/* Translate the options described by *ARGCP and *ARGVP.
Make a new vector and store it back in *ARGVP,
- and store its length in *ARGVC. */
+ and store its length in *ARGCP. */
static void
translate_options (int *argcp, const char *const **argvp)
}
#endif
- /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
- on ?: in file-scope variable initializations. */
- asm_debug = ASM_DEBUG_SPEC;
-
for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
{
sl = &static_specs[i];
/* Free the old spec. */
if (old_spec && sl->alloc_p)
- free ((void *) old_spec);
+ free (CONST_CAST(char *, old_spec));
sl->alloc_p = 1;
}
set_spec (p2, *(sl->ptr_spec));
if (sl->alloc_p)
- free ((void *) *(sl->ptr_spec));
+ free (CONST_CAST (char *, *(sl->ptr_spec)));
*(sl->ptr_spec) = "";
sl->alloc_p = 0;
Don't repeat any we have already seen. */
if (multi_dir)
{
- free ((char *) multi_dir);
+ free (CONST_CAST (char *, multi_dir));
multi_dir = NULL;
- free ((char *) multi_suffix);
+ free (CONST_CAST (char *, multi_suffix));
multi_suffix = machine_suffix;
- free ((char *) just_multi_suffix);
+ free (CONST_CAST (char *, just_multi_suffix));
just_multi_suffix = just_machine_suffix;
}
else
skip_multi_dir = true;
if (multi_os_dir)
{
- free ((char *) multi_os_dir);
+ free (CONST_CAST (char *, multi_os_dir));
multi_os_dir = NULL;
}
else
if (multi_dir)
{
- free ((char *) multi_dir);
- free ((char *) multi_suffix);
- free ((char *) just_multi_suffix);
+ free (CONST_CAST (char *, multi_dir));
+ free (CONST_CAST (char *, multi_suffix));
+ free (CONST_CAST (char *, just_multi_suffix));
}
if (multi_os_dir)
- free ((char *) multi_os_dir);
+ free (CONST_CAST (char *, multi_os_dir));
if (ret != path)
free (path);
return ret;
return NULL;
}
+/* Add or change the value of an environment variable, outputting the
+ change to standard error if in verbose mode. */
+static void
+xputenv (const char *string)
+{
+ if (verbose_flag)
+ notice ("%s\n", string);
+ putenv (CONST_CAST (char *, string));
+}
+
/* Build a list of search directories from PATHS.
PREFIX is a string to prepend to the list.
If CHECK_DIR_P is true we ensure the directory exists.
putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
bool do_multi)
{
- putenv (build_search_list (paths, env_var, true, do_multi));
+ xputenv (build_search_list (paths, env_var, true, do_multi));
}
\f
/* Check whether NAME can be accessed in MODE. This is like access,
gcc_assert (!processing_spec_function);
+ if (wrapper_string)
+ {
+ string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
+ argbuf[0] = (string) ? string : argbuf[0];
+ insert_wrapper (wrapper_string);
+ }
+
/* Count # of piped commands. */
for (n_commands = 1, i = 0; i < argbuf_index; i++)
if (strcmp (argbuf[i], "|") == 0)
commands[0].prog = argbuf[0]; /* first command. */
commands[0].argv = &argbuf[0];
- string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
-
- if (string)
- commands[0].argv[0] = string;
+
+ if (!wrapper_string)
+ {
+ string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
+ commands[0].argv[0] = (string) ? string : commands[0].argv[0];
+ }
for (n_commands = 1, i = 0; i < argbuf_index; i++)
if (strcmp (argbuf[i], "|") == 0)
errmsg = pex_run (pex,
((i + 1 == n_commands ? PEX_LAST : 0)
| (string == commands[i].prog ? PEX_SEARCH : 0)),
- string, (char * const *) commands[i].argv,
+ string, CONST_CAST (char **, commands[i].argv),
NULL, NULL, &err);
if (errmsg != NULL)
{
}
if (string != commands[i].prog)
- free ((void *) string);
+ free (CONST_CAST (char *, string));
}
execution_count++;
If a switch uses following arguments, then the `part1' field
is the switch itself and the `args' field
is a null-terminated vector containing the following arguments.
- The `live_cond' field is:
- 0 when initialized
- 1 if the switch is true in a conditional spec,
- -1 if false (overridden by a later switch)
- -2 if this switch should be ignored (used in %<S)
+ Bits in the `live_cond' field are:
+ SWITCH_LIVE to indicate this switch is true in a conditional spec.
+ SWITCH_FALSE to indicate this switch is overridden by a later switch.
+ SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
The `validated' field is nonzero if any spec has looked at this switch;
if it remains zero at the end of the run, it must be meaningless. */
-#define SWITCH_OK 0
-#define SWITCH_FALSE -1
-#define SWITCH_IGNORE -2
-#define SWITCH_LIVE 1
+#define SWITCH_LIVE 0x1
+#define SWITCH_FALSE 0x2
+#define SWITCH_IGNORE 0x4
struct switchstr
{
const char *part1;
const char **args;
- int live_cond;
+ unsigned int live_cond;
unsigned char validated;
unsigned char ordering;
};
standard_bindir_prefix,
standard_libexec_prefix);
if (gcc_exec_prefix)
- putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
+ xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
}
else
{
else if (strcmp (argv[i], "-fversion") == 0)
{
/* translate_options () has turned --version into -fversion. */
- printf (_("%s (GCC) %s\n"), programname, version_string);
- printf ("Copyright %s 2007 Free Software Foundation, Inc.\n",
+ printf (_("%s %s%s\n"), programname, pkgversion_string,
+ version_string);
+ printf ("Copyright %s 2008 Free Software Foundation, Inc.\n",
_("(C)"));
fputs (_("This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
use_pipes = 1;
n_switches++;
}
+ else if (strcmp (argv[i], "-wrapper") == 0)
+ {
+ if (++i >= argc)
+ fatal ("argument to '-wrapper' is missing");
+
+ wrapper_string = argv[i];
+ n_switches++;
+ n_switches++;
+ }
else if (strcmp (argv[i], "-###") == 0)
{
/* This is similar to -v except that there is no execution
-e0 or -e1 down into the linker. */
switches[n_switches].part1 = &argv[i][0];
switches[n_switches].args = 0;
- switches[n_switches].live_cond = SWITCH_OK;
+ switches[n_switches].live_cond = 0;
switches[n_switches].validated = 0;
n_switches++;
}
infiles[n_infiles].language = "*";
infiles[n_infiles++].name = argv[i];
}
+ else if (strcmp (argv[i], "-wrapper") == 0)
+ i++;
else if (strcmp (argv[i], "-specs") == 0)
i++;
else if (strncmp (argv[i], "-specs=", 7) == 0)
else
switches[n_switches].args = 0;
- switches[n_switches].live_cond = SWITCH_OK;
+ switches[n_switches].live_cond = 0;
switches[n_switches].validated = 0;
switches[n_switches].ordering = 0;
/* These are always valid, since gcc.c itself understands the
first_time = FALSE;
/* Ignore elided switches. */
- if (switches[i].live_cond == SWITCH_IGNORE)
+ if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
continue;
obstack_grow (&collect_obstack, "'-", 2);
}
}
obstack_grow (&collect_obstack, "\0", 1);
- putenv (XOBFINISH (&collect_obstack, char *));
+ xputenv (XOBFINISH (&collect_obstack, char *));
}
\f
/* Process a spec string, accumulating and running commands. */
}
}
+
+/* Parse the WRAPPER string which is a comma separated list of the command line
+ and insert them into the beginning of argbuf. */
+
+static void
+insert_wrapper (const char *wrapper)
+{
+ int n = 0;
+ int i;
+ char *buf = xstrdup (wrapper);
+ char *p = buf;
+
+ do
+ {
+ n++;
+ while (*p == ',')
+ p++;
+ }
+ while ((p = strchr (p, ',')) != NULL);
+
+ if (argbuf_index + n >= argbuf_length)
+ {
+ argbuf_length = argbuf_length * 2;
+ while (argbuf_length < argbuf_index + n)
+ argbuf_length *= 2;
+ argbuf = xrealloc (argbuf, argbuf_length * sizeof (const char *));
+ }
+ for (i = argbuf_index - 1; i >= 0; i--)
+ argbuf[i + n] = argbuf[i];
+
+ i = 0;
+ p = buf;
+ do
+ {
+ while (*p == ',')
+ {
+ *p = 0;
+ p++;
+ }
+ argbuf[i++] = p;
+ }
+ while ((p = strchr (p, ',')) != NULL);
+ gcc_assert (i == n);
+ argbuf_index += n;
+}
+
/* Process the spec SPEC and run the commands specified therein.
Returns 0 if the spec is successfully processed; -1 if failed. */
sw = &switches[i + first];
sw->part1 = &argbuf[i][1];
sw->args = 0;
- sw->live_cond = SWITCH_OK;
+ sw->live_cond = 0;
sw->validated = 0;
sw->ordering = 0;
}
for (i = 0, j = 0; i < max; i++)
if (outfiles[i])
{
- argv[j] = (char *) outfiles[i];
+ argv[j] = CONST_CAST (char *, outfiles[i]);
j++;
}
argv[j] = NULL;
if (!strncmp (switches[i].part1, p, len - have_wildcard)
&& (have_wildcard || switches[i].part1[len] == '\0'))
{
- switches[i].live_cond = SWITCH_IGNORE;
+ switches[i].live_cond |= SWITCH_IGNORE;
switches[i].validated = 1;
}
/* If we already processed this switch and determined if it was
live or not, return our past determination. */
if (switches[switchnum].live_cond != 0)
- return switches[switchnum].live_cond > 0;
+ return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
+ && (switches[switchnum].live_cond & SWITCH_FALSE) == 0);
/* Now search for duplicate in a manner that depends on the name. */
switch (*name)
}
/* Otherwise the switch is live. */
- switches[switchnum].live_cond = SWITCH_LIVE;
+ switches[switchnum].live_cond |= SWITCH_LIVE;
return 1;
}
\f
static void
give_switch (int switchnum, int omit_first_word)
{
- if (switches[switchnum].live_cond == SWITCH_IGNORE)
+ if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
return;
if (!omit_first_word)
while (length-- && !IS_DIR_SEPARATOR (arg[length]))
if (arg[length] == '.')
{
- ((char *)arg)[length] = 0;
+ (CONST_CAST(char *, arg))[length] = 0;
dot = 1;
break;
}
do_spec_1 (arg, 1, NULL);
if (dot)
- ((char *)arg)[length] = '.';
+ (CONST_CAST(char *, arg))[length] = '.';
do_spec_1 (suffix_subst, 1, NULL);
}
else
struct user_specs *uptr;
char **old_argv = argv;
+ /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
+ on ?: in file-scope variable initializations. */
+ asm_debug = ASM_DEBUG_SPEC;
+
p = argv[0] + strlen (argv[0]);
while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
--p;
obstack_init (&collect_obstack);
obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
- putenv (XOBFINISH (&collect_obstack, char *));
+ xputenv (XOBFINISH (&collect_obstack, char *));
#ifdef INIT_ENVIRONMENT
/* Set up any other necessary machine specific environment variables. */
- putenv (INIT_ENVIRONMENT);
+ xputenv (INIT_ENVIRONMENT);
#endif
/* Make a table of what switches there are (switches, n_switches).
if (! strncmp (version_string, compiler_version, n)
&& compiler_version[n] == 0)
- notice ("gcc version %s\n", version_string);
+ notice ("gcc version %s %s\n", version_string, pkgversion_string);
else
- notice ("gcc driver version %s executing gcc version %s\n",
- version_string, compiler_version);
+ notice ("gcc driver version %s %sexecuting gcc version %s\n",
+ version_string, pkgversion_string, compiler_version);
if (n_infiles == 0)
return (0);
mswitches
= XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
for (i = 0; i < n_switches; i++)
- if (switches[i].live_cond != SWITCH_IGNORE)
+ if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
{
int xlen = strlen (switches[i].part1);
for (j = 0; j < cnt; j++)
if (multilib_dir == NULL && multilib_os_dir != NULL
&& strcmp (multilib_os_dir, ".") == 0)
{
- free ((char *) multilib_os_dir);
+ free (CONST_CAST (char *, multilib_os_dir));
multilib_os_dir = NULL;
}
else if (multilib_dir != NULL && multilib_os_dir == NULL)
getenv_spec_function (int argc, const char **argv)
{
char *value;
+ char *result;
+ char *ptr;
+ size_t len;
if (argc != 2)
return NULL;
if (!value)
fatal ("environment variable \"%s\" not defined", argv[0]);
- return concat (value, argv[1], NULL);
+ /* We have to escape every character of the environment variable so
+ they are not interpreted as active spec characters. A
+ particularly painful case is when we are reading a variable
+ holding a windows path complete with \ separators. */
+ len = strlen (value) * 2 + strlen (argv[1]) + 1;
+ result = xmalloc (len);
+ for (ptr = result; *value; ptr += 2)
+ {
+ ptr[0] = '\\';
+ ptr[1] = *value++;
+ }
+
+ strcpy (ptr, argv[1]);
+
+ return result;
}
/* if-exists built-in spec function.
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