/* 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, 2008
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
#include "flags.h"
#include "opts.h"
+#ifdef HAVE_MMAP_FILE
+# include <sys/mman.h>
+# ifdef HAVE_MINCORE
+/* This is on Solaris. */
+# include <sys/types.h>
+# endif
+#endif
+
+#ifndef MAP_FAILED
+# define MAP_FAILED ((void *)-1)
+#endif
+
/* By default there is no special suffix for target executables. */
/* FIXME: when autoconf is fixed, remove the host check - dj */
#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
static int print_help_list;
+/* Flag saying to print the version of gcc and its sub-processes. */
+
+static int print_version;
+
/* Flag saying to print the sysroot suffix used for searching for
headers. */
static int report_times;
+/* Whether we should report subprocess execution times to a file. */
+
+FILE *report_times_to_file = NULL;
+
/* Nonzero means place this string before uses of /, so that include
and library files can be found in an alternate location. */
/* Nonzero means write "temp" files in source directory
and use the source file's name in them, and don't delete them. */
-static int save_temps_flag;
+static enum save_temps {
+ SAVE_TEMPS_NONE, /* no -save-temps */
+ SAVE_TEMPS_CWD, /* -save-temps in current directory */
+ SAVE_TEMPS_OBJ /* -save-temps in object directory */
+} save_temps_flag;
+
+/* Output file to use to get the object directory for -save-temps=obj */
+static char *save_temps_prefix = 0;
+static size_t save_temps_length = 0;
/* Nonzero means pass multiple source files to the compiler at one time. */
switch. The only case we support now is simply appending or deleting a
string to or from the end of the first part of the configuration name. */
+enum add_del {ADD, DELETE};
+
static const struct modify_target
{
const char *const sw;
- const enum add_del {ADD, DELETE} add_del;
+ const enum add_del add_del;
const char *const str;
}
modify_target[] = MODIFY_TARGET_NAME;
static const char *version_compare_spec_function (int, const char **);
static const char *include_spec_function (int, const char **);
static const char *print_asm_header_spec_function (int, const char **);
+static const char *compare_debug_dump_opt_spec_function (int, const char **);
+static const char *compare_debug_self_opt_spec_function (int, const char **);
+static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
\f
/* The Specs Language
%i substitute the name of the input file being processed.
%b substitute the basename of the input file being processed.
This is the substring up to (and not including) the last period
- and not including the directory.
+ and not including the directory unless -save-temps was specified
+ to put temporaries in a different location.
%B same as %b, but include the file suffix (text after the last period).
%gSUFFIX
substitute a file name that has suffix SUFFIX and is chosen
it is subsequently output with %*. SUFFIX is terminated by the next
space or %.
%d marks the argument containing or following the %d as a
- temporary file name, so that that file will be deleted if CC exits
+ temporary file name, so that that file will be deleted if GCC exits
successfully. Unlike %g, this contributes no text to the argument.
%w marks the argument containing or following the %w as the
"output file" of this compilation. This puts the argument
argument vector in the usual fashion. The function returns
a string which is processed as if it had appeared literally
as part of the current spec.
- %{S} substitutes the -S switch, if that switch was given to CC.
+ %{S} substitutes the -S switch, if that switch was given to GCC.
If that switch was not specified, this substitutes nothing.
Here S is a metasyntactic variable.
- %{S*} substitutes all the switches specified to CC whose names start
+ %{S*} substitutes all the switches specified to GCC whose names start
with -S. This is used for -o, -I, etc; switches that take
- arguments. CC considers `-o foo' as being one switch whose
+ arguments. GCC considers `-o foo' as being one switch whose
name starts with `o'. %{o*} would substitute this text,
including the space; thus, two arguments would be generated.
%{S*&T*} likewise, but preserve order of S and T options (the order
of ampersand-separated variables; for each the wild card is
optional. Useful for CPP as %{D*&U*&A*}.
- %{S:X} substitutes X, if the -S switch was given to CC.
- %{!S:X} substitutes X, if the -S switch was NOT given to CC.
+ %{S:X} substitutes X, if the -S switch was given to GCC.
+ %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
%{S*:X} substitutes X if one or more switches whose names start
- with -S was given to CC. Normally X is substituted only
+ with -S was given to GCC. Normally X is substituted only
once, no matter how many such switches appeared. However,
if %* appears somewhere in X, then X will be substituted
once for each matching switch, with the %* replaced by the
%{,S:X} substitutes X, if processing a file which will use spec S.
%{!,S:X} substitutes X, if NOT processing a file which will use spec S.
- %{S|T:X} substitutes X if either -S or -T was given to CC. This may be
+ %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
combined with '!', '.', ',', and '*' as above binding stronger
than the OR.
If %* appears in X, all of the alternatives must be starred, and
only the first matching alternative is substituted.
- %{S:X; if S was given to CC, substitutes X;
- T:Y; else if T was given to CC, substitutes Y;
+ %{S:X; if S was given to GCC, substitutes X;
+ T:Y; else if T was given to GCC, substitutes Y;
:D} else substitutes D. There can be as many clauses as you need.
This may be combined with '.', '!', ',', '|', and '*' as above.
that a command should be piped to the following command, but only if -pipe
is specified.
-Note that it is built into CC which switches take arguments and which
+Note that it is built into GCC which switches take arguments and which
do not. You might think it would be useful to generalize this to
allow each compiler's spec to say which switches take arguments. But
-this cannot be done in a consistent fashion. CC cannot even decide
+this cannot be done in a consistent fashion. GCC cannot even decide
which input files have been specified without knowing which switches
take arguments, and it must know which input files to compile in order
to tell which compilers to run.
-CC also knows implicitly that arguments starting in `-l' are to be
+GCC also knows implicitly that arguments starting in `-l' are to be
treated as compiler output files, and passed to the linker in their
proper position among the other output files. */
\f
&& 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}}" ASM_MAP \
- : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}" ASM_MAP)
+ ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
+ : "%{!g0:%{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}" ASM_MAP
+# define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
# endif
# if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
-# define ASM_DEBUG_SPEC "%{g*:--gdwarf2}" ASM_MAP
+# define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
# endif
# endif
#endif
#endif
#endif
+#ifndef LINK_BUILDID_SPEC
+# if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
+# define LINK_BUILDID_SPEC "%{!r:--build-id} "
+# endif
+#endif
+
+
/* -u* was put back because both BSD and SysV seem to support it. */
/* %{static:} simply prevents an error message if the target machine
doesn't handle -static. */
%{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
- %{fprofile-arcs|fprofile-generate|coverage:-lgcov}\
+ %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
#endif
static const char *cpp_options =
"%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
%{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
- %{undef} %{save-temps:-fpch-preprocess}";
+ %{undef} %{save-temps*:-fpch-preprocess}";
/* This contains cpp options which are not passed when the preprocessor
output will be used by another program. */
static const char *cpp_debug_options = "%{d*}";
-/* NB: This is shared amongst all front-ends. */
+/* NB: This is shared amongst all front-ends, except for Ada. */
static const char *cc1_options =
"%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
%1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
- %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
+ %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
+ %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
%{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
%{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
%{Qn:-fno-ident} %{--help:--help}\
static const char *invoke_as =
#ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
-"%{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
+"%{fcompare-debug=*:%:compare-debug-dump-opt()}\
+ %{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
#else
-"%{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
+"%{fcompare-debug=*:%:compare-debug-dump-opt()}\
+ %{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
#endif
/* Some compilers have limits on line lengths, and the multilib_select
%{traditional|ftraditional:\
%eGNU C no longer supports -traditional without -E}\
%{!combine:\
- %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
- %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
- cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
+ %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
%(cc1_options)}\
- %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
+ %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
cc1 %(cpp_unique_options) %(cc1_options)}}}\
%{!fsyntax-only:%(invoke_as)}} \
%{combine:\
- %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
- %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i}}\
- %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
+ %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
+ %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
cc1 %(cpp_unique_options) %(cc1_options)}}\
%{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
{"-",
external preprocessor if -save-temps is given. */
"%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
%{!E:%{!M:%{!MM:\
- %{save-temps|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
- %(cpp_options) -o %{save-temps:%b.i} %{!save-temps:%g.i} \n\
- cc1 -fpreprocessed %{save-temps:%b.i} %{!save-temps:%g.i} \
+ %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
%(cc1_options)\
-o %g.s %{!o*:--output-pch=%i.gch}\
%W{o*:--output-pch=%*}%V}\
- %{!save-temps:%{!traditional-cpp:%{!no-integrated-cpp:\
+ %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
cc1 %(cpp_unique_options) %(cc1_options)\
-o %g.s %{!o*:--output-pch=%i.gch}\
%W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
{ "version-compare", version_compare_spec_function },
{ "include", include_spec_function },
{ "print-asm-header", print_asm_header_spec_function },
+ { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
+ { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
+ { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
#ifdef EXTRA_SPEC_FUNCTIONS
EXTRA_SPEC_FUNCTIONS
#endif
asm_spec = XOBFINISH (&obstack, const char *);
}
#endif
-#ifdef LINK_EH_SPEC
+
+#if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
+# ifdef LINK_BUILDID_SPEC
+ /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
+ obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
+# endif
+# ifdef LINK_EH_SPEC
/* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
+# endif
obstack_grow0 (&obstack, link_spec, strlen (link_spec));
link_spec = XOBFINISH (&obstack, const char *);
#endif
/* Run each piped subprocess. */
- pex = pex_init (PEX_USE_PIPES | (report_times ? PEX_RECORD_TIMES : 0),
+ pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
+ ? PEX_RECORD_TIMES : 0),
programname, temp_filename);
if (pex == NULL)
pfatal_with_name (_("pex_init failed"));
if (!pex_get_status (pex, n_commands, statuses))
pfatal_with_name (_("failed to get exit status"));
- if (report_times)
+ if (report_times || report_times_to_file)
{
times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
if (!pex_get_times (pex, n_commands, times))
ret_code = -1;
}
- if (report_times)
+ if (report_times || report_times_to_file)
{
struct pex_time *pt = ×[i];
double ut, st;
+ (double) pt->system_microseconds / 1.0e6);
if (ut + st != 0)
- notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
+ {
+ if (report_times)
+ notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
+
+ if (report_times_to_file)
+ {
+ int c = 0;
+ const char *const *j;
+
+ fprintf (report_times_to_file, "%g %g", ut, st);
+
+ for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
+ {
+ const char *p;
+ for (p = *j; *p; ++p)
+ if (*p == '"' || *p == '\\' || *p == '$'
+ || ISSPACE (*p))
+ break;
+
+ if (*p)
+ {
+ fprintf (report_times_to_file, " \"");
+ for (p = *j; *p; ++p)
+ {
+ if (*p == '"' || *p == '\\' || *p == '$')
+ fputc ('\\', report_times_to_file);
+ fputc (*p, report_times_to_file);
+ }
+ fputc ('"', report_times_to_file);
+ }
+ else
+ fprintf (report_times_to_file, " %s", *j);
+ }
+
+ fputc ('\n', report_times_to_file);
+ }
+ }
}
}
static int n_switches;
+/* Set to zero if -fcompare-debug is disabled, positive if it's
+ enabled and we're running the first compilation, negative if it's
+ enabled and we're running the second compilation. For most of the
+ time, it's in the range -1..1, but it can be temporarily set to 2
+ or 3 to indicate that the -fcompare-debug flags didn't come from
+ the command-line, but rather from the GCC_COMPARE_DEBUG environment
+ variable, until a synthesized -fcompare-debug flag is added to the
+ command line. */
+int compare_debug;
+
+/* Set to nonzero if we've seen the -fcompare-debug-second flag. */
+int compare_debug_second;
+
+/* Set to the flags that should be passed to the second compilation in
+ a -fcompare-debug compilation. */
+const char *compare_debug_opt;
+
+static struct switchstr *switches_debug_check[2];
+
+static int n_switches_debug_check[2];
+
+static char *debug_check_temp_file[2];
+
/* Language is one of three things:
1) The name of a real programming language.
fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
fputs (_(" --help Display this information\n"), stdout);
fputs (_(" --target-help Display target specific command line options\n"), stdout);
- fputs (_(" --help={target|optimizers|warnings|undocumented|params}[,{[^]joined|[^]separate}]\n"), stdout);
+ fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
fputs (_(" Display specific types of command line options\n"), stdout);
if (! verbose_flag)
fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
+ fputs (_(" --version Display compiler version information\n"), stdout);
fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
+ fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
fputs (_(" -time Time the execution of each subprocess\n"), stdout);
fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
Use heuristic that all configuration names must have at least
one dash '-'. This allows us to pass options starting with -b. */
if (argc > 1 && argv[1][0] == '-'
- && (argv[1][1] == 'V' ||
- ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
+ && (argv[1][1] == 'V'
+ || (argv[1][1] == 'b'
+ && (argv[1][2] == '\0'
+ || NULL != strchr (argv[1] + 2, '-')))))
{
const char *new_version = DEFAULT_TARGET_VERSION;
const char *new_machine = DEFAULT_TARGET_MACHINE;
char **new_argv;
char *new_argv0;
int baselen;
+ int status = 0;
+ int err = 0;
+ const char *errmsg;
while (argc > 1 && argv[1][0] == '-'
- && (argv[1][1] == 'V' ||
- ((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
+ && (argv[1][1] == 'V'
+ || (argv[1][1] == 'b'
+ && (argv[1][2] == '\0'
+ || NULL != strchr (argv[1] + 2, '-')))))
{
char opt = argv[1][1];
const char *arg;
new_argv = XDUPVEC (char *, argv, argc + 1);
new_argv[0] = new_argv0;
- execvp (new_argv0, new_argv);
- fatal ("couldn't run '%s': %s", new_argv0, xstrerror (errno));
+ errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
+ NULL, &status, &err);
+
+ if (errmsg)
+ {
+ if (err == 0)
+ fatal ("couldn't run '%s': %s", new_argv0, errmsg);
+ else
+ fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
+ xstrerror (err));
+ }
+ exit (status);
}
/* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
}
/* Convert new-style -- options to old-style. */
- translate_options (&argc, (const char *const **) &argv);
+ translate_options (&argc,
+ CONST_CAST2 (const char *const **, const char ***,
+ &argv));
/* Do language-specific adjustment/addition of flags. */
- lang_specific_driver (&argc, (const char *const **) &argv, &added_libraries);
+ lang_specific_driver (&argc,
+ CONST_CAST2 (const char *const **, const char ***,
+ &argv),
+ &added_libraries);
/* Scan argv twice. Here, the first time, just count how many switches
there will be in their vector, and how many input files in theirs.
else if (strcmp (argv[i], "-fversion") == 0)
{
/* translate_options () has turned --version into -fversion. */
- 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"),
- stdout);
- exit (0);
+ print_version = 1;
+
+ /* We will be passing a dummy file on to the sub-processes. */
+ n_infiles++;
+ n_switches++;
+
+ /* CPP driver cannot obtain switch from cc1_options. */
+ if (is_cpp_driver)
+ add_preprocessor_option ("--version", strlen ("--version"));
+ add_assembler_option ("--version", strlen ("--version"));
+ add_linker_option ("--version", strlen ("--version"));
}
else if (strcmp (argv[i], "-fhelp") == 0)
{
print_multi_os_directory = 1;
else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
print_sysroot_headers_suffix = 1;
+ else if (! strcmp (argv[i], "-fcompare-debug-second"))
+ {
+ compare_debug_second = 1;
+ n_switches++;
+ }
+ else if (! strcmp (argv[i], "-fno-compare-debug"))
+ {
+ argv[i] = "-fcompare-debug=";
+ goto compare_debug_with_arg;
+ }
+ else if (! strcmp (argv[i], "-fcompare-debug"))
+ {
+ argv[i] = "-fcompare-debug=-gtoggle";
+ goto compare_debug_with_arg;
+ }
+#define OPT "-fcompare-debug="
+ else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
+ {
+ const char *opt;
+ compare_debug_with_arg:
+ opt = argv[i] + sizeof (OPT) - 1;
+#undef OPT
+ if (*opt)
+ compare_debug = 1;
+ else
+ compare_debug = -1;
+ if (compare_debug < 0)
+ compare_debug_opt = NULL;
+ else
+ compare_debug_opt = opt;
+ n_switches++;
+ }
else if (! strncmp (argv[i], "-Wa,", 4))
{
int prev, j;
n_infiles++;
else if (strcmp (argv[i], "-save-temps") == 0)
{
- save_temps_flag = 1;
+ save_temps_flag = SAVE_TEMPS_CWD;
+ n_switches++;
+ }
+ else if (strncmp (argv[i], "-save-temps=", 12) == 0)
+ {
n_switches++;
+ if (strcmp (argv[i]+12, "cwd") == 0)
+ save_temps_flag = SAVE_TEMPS_CWD;
+ else if (strcmp (argv[i]+12, "obj") == 0
+ || strcmp (argv[i]+12, "object") == 0)
+ save_temps_flag = SAVE_TEMPS_OBJ;
+ else
+ fatal ("'%s' is an unknown -save-temps option", argv[i]);
}
else if (strcmp (argv[i], "-combine") == 0)
{
}
else if (strcmp (argv[i], "-time") == 0)
report_times = 1;
+ else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
+ {
+ if (report_times_to_file)
+ fclose (report_times_to_file);
+ report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
+ }
else if (strcmp (argv[i], "-pipe") == 0)
{
/* -pipe has to go into the switches array as well as
switch (c)
{
case 'b':
- if (NULL == strchr(argv[i] + 2, '-'))
+ if (p[1] && NULL == strchr (argv[i] + 2, '-'))
goto normal_switch;
/* Fall through. */
else
argv[i] = convert_filename (argv[i], ! have_c, 0);
#endif
+ /* Save the output name in case -save-temps=obj was used. */
+ save_temps_prefix = xstrdup ((p[1] == 0) ? argv[i + 1] : argv[i] + 1);
goto normal_switch;
default:
}
}
+ /* If -save-temps=obj and -o name, create the prefix to use for %b.
+ Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
+ if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
+ {
+ save_temps_length = strlen (save_temps_prefix);
+ temp = strrchr (lbasename (save_temps_prefix), '.');
+ if (temp)
+ {
+ save_temps_length -= strlen (temp);
+ save_temps_prefix[save_temps_length] = '\0';
+ }
+
+ }
+ else if (save_temps_prefix != NULL)
+ {
+ free (save_temps_prefix);
+ save_temps_prefix = NULL;
+ }
+
if (save_temps_flag && use_pipes)
{
/* -save-temps overrides -pipe, so that temp files are produced */
use_pipes = 0;
}
+ if (!compare_debug)
+ {
+ const char *gcd = getenv ("GCC_COMPARE_DEBUG");
+
+ if (gcd && gcd[0] == '-')
+ {
+ compare_debug = 2;
+ compare_debug_opt = gcd;
+ n_switches++;
+ }
+ else if (gcd && *gcd && strcmp (gcd, "0"))
+ {
+ compare_debug = 3;
+ compare_debug_opt = "-gtoggle";
+ n_switches++;
+ }
+ }
+ else if (compare_debug < 0)
+ {
+ compare_debug = 0;
+ gcc_assert (!compare_debug_opt);
+ }
+
/* Set up the search paths. We add directories that we expect to
contain GNU Toolchain components before directories specified by
the machine description so that we will find GNU components (like
;
else if (strcmp (argv[i], "-time") == 0)
;
+ else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
+ ;
else if (strcmp (argv[i], "-###") == 0)
;
else if (argv[i][0] == '-' && argv[i][1] != 0)
if (n_infiles == last_language_n_infiles && spec_lang != 0)
error ("warning: '-x %s' after last input file has no effect", spec_lang);
+ if (compare_debug == 2 || compare_debug == 3)
+ {
+ switches[n_switches].part1 = concat ("fcompare-debug=",
+ compare_debug_opt,
+ NULL);
+ switches[n_switches].args = 0;
+ switches[n_switches].live_cond = 0;
+ switches[n_switches].validated = 0;
+ switches[n_switches].ordering = 0;
+ n_switches++;
+ compare_debug = 1;
+ }
+
/* Ensure we only invoke each subprocess once. */
- if (print_subprocess_help || print_help_list)
+ if (print_subprocess_help || print_help_list || print_version)
{
n_infiles = 1;
if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
continue;
+ /* Don't use -fwhole-program when compiling the init and fini routines,
+ since we'd wrongly assume that the routines aren't needed. */
+ if (strcmp (switches[i].part1, "fwhole-program") == 0)
+ continue;
+
obstack_grow (&collect_obstack, "'-", 2);
q = switches[i].part1;
while ((p = strchr (q, '\'')))
if (argbuf_index > 0)
{
- int i, first;
+ int i;
- first = n_switches;
- n_switches += argbuf_index;
- switches = XRESIZEVEC (struct switchstr, switches, n_switches + 1);
+ switches = XRESIZEVEC (struct switchstr, switches,
+ n_switches + argbuf_index + 1);
- switches[n_switches] = switches[first];
for (i = 0; i < argbuf_index; i++)
{
struct switchstr *sw;
+ const char *p = argbuf[i];
+ int c = *p;
/* Each switch should start with '-'. */
- if (argbuf[i][0] != '-')
+ if (c != '-')
fatal ("switch '%s' does not start with '-'", argbuf[i]);
- sw = &switches[i + first];
- sw->part1 = &argbuf[i][1];
- sw->args = 0;
+ p++;
+ c = *p;
+
+ sw = &switches[n_switches++];
+ sw->part1 = p;
sw->live_cond = 0;
sw->validated = 0;
sw->ordering = 0;
+
+ /* Deal with option arguments in separate argv elements. */
+ if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
+ || WORD_SWITCH_TAKES_ARG (p))
+ {
+ int j = 0;
+ int n_args = WORD_SWITCH_TAKES_ARG (p);
+
+ if (n_args == 0)
+ {
+ /* Count only the option arguments in separate argv elements. */
+ n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
+ }
+ if (i + n_args >= argbuf_index)
+ fatal ("argument to '-%s' is missing", p);
+ sw->args
+ = XNEWVEC (const char *, n_args + 1);
+ while (j < n_args)
+ sw->args[j++] = argbuf[++i];
+ /* Null-terminate the vector. */
+ sw->args[j] = 0;
+ }
+ else if (strchr (switches_need_spaces, c))
+ {
+ /* On some systems, ld cannot handle some options without
+ a space. So split the option from its argument. */
+ char *part1 = XNEWVEC (char, 2);
+ part1[0] = c;
+ part1[1] = '\0';
+
+ sw->part1 = part1;
+ sw->args = XNEWVEC (const char *, 2);
+ sw->args[0] = xstrdup (p+1);
+ sw->args[1] = 0;
+ }
+ else
+ sw->args = 0;
}
+
+ switches[n_switches].part1 = 0;
}
}
return NULL;
}
+/* Create a temporary FILE with the contents of ARGV. Add @FILE to the
+ argument list. */
+
+static void
+create_at_file (char **argv)
+{
+ char *temp_file = make_temp_file ("");
+ char *at_argument = concat ("@", temp_file, NULL);
+ FILE *f = fopen (temp_file, "w");
+ int status;
+
+ if (f == NULL)
+ fatal ("could not open temporary response file %s",
+ temp_file);
+
+ status = writeargv (argv, f);
+
+ if (status)
+ fatal ("could not write to temporary response file %s",
+ temp_file);
+
+ status = fclose (f);
+
+ if (EOF == status)
+ fatal ("could not close temporary response file %s",
+ temp_file);
+
+ store_arg (at_argument, 0, 0);
+
+ record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
+}
+
+/* True if we should compile INFILE. */
+
+static bool
+compile_input_file_p (struct infile *infile)
+{
+ if ((!infile->language) || (infile->language[0] != '*'))
+ if (infile->incompiler == input_file_compiler)
+ return true;
+ return false;
+}
+
/* Process the sub-spec SPEC as a portion of a larger spec.
This is like processing a whole spec except that we do
not initialize at the beginning and we do not supply a
fatal ("spec '%s' invalid", spec);
case 'b':
- obstack_grow (&obstack, input_basename, basename_length);
+ if (save_temps_length)
+ obstack_grow (&obstack, save_temps_prefix, save_temps_length);
+ else
+ obstack_grow (&obstack, input_basename, basename_length);
+ if (compare_debug < 0)
+ obstack_grow (&obstack, ".gk", 3);
arg_going = 1;
break;
case 'B':
- obstack_grow (&obstack, input_basename, suffixed_basename_length);
+ if (save_temps_length)
+ obstack_grow (&obstack, save_temps_prefix, save_temps_length);
+ else
+ obstack_grow (&obstack, input_basename, suffixed_basename_length);
+ if (compare_debug < 0)
+ obstack_grow (&obstack, ".gk", 3);
arg_going = 1;
break;
suffix_length += strlen (TARGET_OBJECT_SUFFIX);
}
+ if (compare_debug < 0)
+ {
+ suffix = concat (".gk", suffix, NULL);
+ suffix_length += 3;
+ }
+
+ /* If -save-temps=obj and -o were specified, use that for the
+ temp file. */
+ if (save_temps_length)
+ {
+ char *tmp;
+ temp_filename_length
+ = save_temps_length + suffix_length + 1;
+ tmp = (char *) alloca (temp_filename_length);
+ memcpy (tmp, save_temps_prefix, save_temps_length);
+ memcpy (tmp + save_temps_length, suffix, suffix_length);
+ tmp[save_temps_length + suffix_length] = '\0';
+ temp_filename = save_string (tmp,
+ temp_filename_length + 1);
+ obstack_grow (&obstack, temp_filename,
+ temp_filename_length);
+ arg_going = 1;
+ delete_this_arg = 0;
+ break;
+ }
+
/* If the input_filename has the same suffix specified
for the %g, %u, or %U, and -save-temps is specified,
we could end up using that file as an intermediate
if (save_temps_flag)
{
char *tmp;
-
- temp_filename_length = basename_length + suffix_length;
- tmp = (char *) alloca (temp_filename_length + 1);
- strncpy (tmp, input_basename, basename_length);
- strncpy (tmp + basename_length, suffix, suffix_length);
- tmp[temp_filename_length] = '\0';
+ temp_filename_length = basename_length + suffix_length + 1;
+ tmp = (char *) alloca (temp_filename_length);
+ memcpy (tmp, input_basename, basename_length);
+ memcpy (tmp + basename_length, suffix, suffix_length);
+ tmp[basename_length + suffix_length] = '\0';
temp_filename = tmp;
+
if (strcmp (temp_filename, input_filename) != 0)
{
#ifndef HOST_LACKS_INODE_NUMBERS
case 'i':
if (combine_inputs)
{
- for (i = 0; (int) i < n_infiles; i++)
- if ((!infiles[i].language) || (infiles[i].language[0] != '*'))
- if (infiles[i].incompiler == input_file_compiler)
+ if (at_file_supplied)
+ {
+ /* We are going to expand `%i' to `@FILE', where FILE
+ is a newly-created temporary filename. The filenames
+ that would usually be expanded in place of %o will be
+ written to the temporary file. */
+ char **argv;
+ int n_files = 0;
+ int j;
+
+ for (i = 0; i < n_infiles; i++)
+ if (compile_input_file_p (&infiles[i]))
+ n_files++;
+
+ argv = (char **) alloca (sizeof (char *) * (n_files + 1));
+
+ /* Copy the strings over. */
+ for (i = 0, j = 0; i < n_infiles; i++)
+ if (compile_input_file_p (&infiles[i]))
+ {
+ argv[j] = CONST_CAST (char *, infiles[i].name);
+ infiles[i].compiled = true;
+ j++;
+ }
+ argv[j] = NULL;
+
+ create_at_file (argv);
+ }
+ else
+ for (i = 0; (int) i < n_infiles; i++)
+ if (compile_input_file_p (&infiles[i]))
{
store_arg (infiles[i].name, 0, 0);
infiles[i].compiled = true;
that would usually be expanded in place of %o will be
written to the temporary file. */
- char *temp_file = make_temp_file ("");
- char *at_argument;
char **argv;
- int n_files, j, status;
- FILE *f;
-
- at_argument = concat ("@", temp_file, NULL);
- store_arg (at_argument, 0, 0);
+ int n_files, j;
/* Convert OUTFILES into a form suitable for writeargv. */
}
argv[j] = NULL;
- f = fopen (temp_file, "w");
-
- if (f == NULL)
- fatal ("could not open temporary response file %s",
- temp_file);
-
- status = writeargv (argv, f);
-
- if (status)
- fatal ("could not write to temporary response file %s",
- temp_file);
-
- status = fclose (f);
-
- if (EOF == status)
- fatal ("could not close temporary response file %s",
- temp_file);
-
- record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
+ create_at_file (argv);
}
else
for (i = 0; i < max; i++)
const char *name = switches[switchnum].part1;
int i;
+ /* 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 & SWITCH_LIVE) != 0
+ && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
+ && (switches[switchnum].live_cond & SWITCH_IGNORE) == 0);
+
/* In the common case of {<at-most-one-letter>*}, a negating
switch would always match, so ignore that case. We will just
send the conflicting switches to the compiler phase. */
if (prefix_length >= 0 && prefix_length <= 1)
return 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 & SWITCH_LIVE) != 0
- && (switches[switchnum].live_cond & SWITCH_FALSE) == 0);
-
/* Now search for duplicate in a manner that depends on the name. */
switch (*name)
{
input_filename = filename;
input_filename_length = strlen (input_filename);
-
- input_basename = input_filename;
-#ifdef HAVE_DOS_BASED_FILE_SYSTEM
- /* Skip drive name so 'x:foo' is handled properly. */
- if (input_basename[1] == ':')
- input_basename += 2;
-#endif
- for (p = input_basename; *p; p++)
- if (IS_DIR_SEPARATOR (*p))
- input_basename = p + 1;
+ input_basename = lbasename (input_filename);
/* Find a suffix starting with the last period,
and set basename_length to exclude that suffix. */
kill (getpid (), signum);
}
+/* Compare the contents of the two files named CMPFILE[0] and
+ CMPFILE[1]. Return zero if they're identical, nonzero
+ otherwise. */
+
+static int
+compare_files (char *cmpfile[])
+{
+ int ret = 0;
+ FILE *temp[2] = { NULL, NULL };
+ int i;
+
+#if HAVE_MMAP_FILE
+ {
+ size_t length[2];
+ void *map[2] = { NULL, NULL };
+
+ for (i = 0; i < 2; i++)
+ {
+ struct stat st;
+
+ if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
+ {
+ error ("%s: could not determine length of compare-debug file %s",
+ input_filename, cmpfile[i]);
+ ret = 1;
+ break;
+ }
+
+ length[i] = st.st_size;
+ }
+
+ if (!ret && length[0] != length[1])
+ {
+ error ("%s: -fcompare-debug failure (length)", input_filename);
+ ret = 1;
+ }
+
+ if (!ret)
+ for (i = 0; i < 2; i++)
+ {
+ int fd = open (cmpfile[i], O_RDONLY);
+ if (fd < 0)
+ {
+ error ("%s: could not open compare-debug file %s",
+ input_filename, cmpfile[i]);
+ ret = 1;
+ break;
+ }
+
+ map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
+ close (fd);
+
+ if (map[i] == (void *) MAP_FAILED)
+ {
+ ret = -1;
+ break;
+ }
+ }
+
+ if (!ret)
+ {
+ if (memcmp (map[0], map[1], length[0]) != 0)
+ {
+ error ("%s: -fcompare-debug failure", input_filename);
+ ret = 1;
+ }
+ }
+
+ for (i = 0; i < 2; i++)
+ if (map[i])
+ munmap ((caddr_t) map[i], length[i]);
+
+ if (ret >= 0)
+ return ret;
+
+ ret = 0;
+ }
+#endif
+
+ for (i = 0; i < 2; i++)
+ {
+ temp[i] = fopen (cmpfile[i], "r");
+ if (!temp[i])
+ {
+ error ("%s: could not open compare-debug file %s",
+ input_filename, cmpfile[i]);
+ ret = 1;
+ break;
+ }
+ }
+
+ if (!ret && temp[0] && temp[1])
+ for (;;)
+ {
+ int c0, c1;
+ c0 = fgetc (temp[0]);
+ c1 = fgetc (temp[1]);
+
+ if (c0 != c1)
+ {
+ error ("%s: -fcompare-debug failure",
+ input_filename);
+ ret = 1;
+ break;
+ }
+
+ if (c0 == EOF)
+ break;
+ }
+
+ for (i = 1; i >= 0; i--)
+ {
+ if (temp[i])
+ fclose (temp[i]);
+ }
+
+ return ret;
+}
+
extern int main (int, char **);
int
Make a table of specified input files (infiles, n_infiles).
Decode switches that are handled locally. */
- process_command (argc, (const char **) argv);
+ process_command (argc, CONST_CAST2 (const char **, char **, argv));
/* Initialize the vector of specs to just the default.
This means one element containing 0s, as a terminator. */
for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
do_self_spec (driver_self_specs[i]);
+ if (compare_debug)
+ {
+ enum save_temps save;
+
+ if (!compare_debug_second)
+ {
+ n_switches_debug_check[1] = n_switches;
+ switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
+ n_switches + 1);
+
+ do_self_spec ("%:compare-debug-self-opt()");
+ n_switches_debug_check[0] = n_switches;
+ switches_debug_check[0] = switches;
+
+ n_switches = n_switches_debug_check[1];
+ switches = switches_debug_check[1];
+ }
+
+ /* Avoid crash when computing %j in this early. */
+ save = save_temps_flag;
+ save_temps_flag = SAVE_TEMPS_NONE;
+
+ compare_debug = -compare_debug;
+ do_self_spec ("%:compare-debug-self-opt()");
+
+ save_temps_flag = save;
+
+ if (!compare_debug_second)
+ {
+ n_switches_debug_check[1] = n_switches;
+ switches_debug_check[1] = switches;
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[0];
+ switches = switches_debug_check[0];
+ }
+ }
+
/* If not cross-compiling, look for executables in the standard
places. */
if (*cross_compile == '0')
/* We do not exit here. Instead we have created a fake input file
called 'help-dummy' which needs to be compiled, and we pass this
- on the various sub-processes, along with the --help switch. */
+ on the various sub-processes, along with the --help switch.
+ Ensure their output appears after ours. */
+ fputc ('\n', stdout);
+ fflush (stdout);
+ }
+
+ if (print_version)
+ {
+ printf (_("%s %s%s\n"), programname, pkgversion_string,
+ version_string);
+ printf ("Copyright %s 2009 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"),
+ stdout);
+ if (! verbose_flag)
+ return 0;
+
+ /* We do not exit here. We use the same mechanism of --help to print
+ the version of the sub-processes. */
+ fputc ('\n', stdout);
+ fflush (stdout);
}
if (verbose_flag)
}
else
{
+ if (compare_debug)
+ {
+ if (debug_check_temp_file[0])
+ free (debug_check_temp_file[0]);
+ debug_check_temp_file[0] = NULL;
+
+ if (debug_check_temp_file[1])
+ free (debug_check_temp_file[1]);
+ debug_check_temp_file[1] = NULL;
+ }
+
value = do_spec (input_file_compiler->spec);
infiles[i].compiled = true;
if (value < 0)
this_file_error = 1;
+ else if (compare_debug && debug_check_temp_file[0])
+ {
+ if (verbose_flag)
+ error ("Recompiling with -fcompare-debug");
+
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[1];
+ switches = switches_debug_check[1];
+
+ value = do_spec (input_file_compiler->spec);
+
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[0];
+ switches = switches_debug_check[0];
+
+ if (value < 0)
+ {
+ error ("during -fcompare-debug recompilation");
+ this_file_error = 1;
+ }
+
+ gcc_assert (debug_check_temp_file[1]
+ && strcmp (debug_check_temp_file[0],
+ debug_check_temp_file[1]));
+
+ if (verbose_flag)
+ error ("Comparing final insns dumps");
+
+ if (compare_files (debug_check_temp_file))
+ this_file_error = 1;
+ }
+
+ if (compare_debug)
+ {
+ if (debug_check_temp_file[0])
+ free (debug_check_temp_file[0]);
+ debug_check_temp_file[0] = NULL;
+
+ if (debug_check_temp_file[1])
+ free (debug_check_temp_file[1]);
+ debug_check_temp_file[1] = NULL;
+ }
}
}
fflush (stdout);
return NULL;
}
+
+/* %:compare-debug-dump-opt spec function. Save the last argument,
+ expected to be the last -fdump-final-insns option, or generate a
+ temporary. */
+
+static const char *
+compare_debug_dump_opt_spec_function (int arg,
+ const char **argv ATTRIBUTE_UNUSED)
+{
+ const char *ret;
+ char *name;
+ int which;
+
+ if (arg != 0)
+ fatal ("too many arguments to %%:compare-debug-dump-opt");
+
+ if (!compare_debug)
+ return NULL;
+
+ do_spec_2 ("%{fdump-final-insns=*:%*}");
+ do_spec_1 (" ", 0, NULL);
+
+ if (argbuf_index > 0)
+ {
+ name = xstrdup (argv[argbuf_index - 1]);
+ ret = NULL;
+ }
+ else
+ {
+#define OPT "-fdump-final-insns="
+ ret = "-fdump-final-insns=%g.gkd";
+
+ do_spec_2 (ret + sizeof (OPT) - 1);
+ do_spec_1 (" ", 0, NULL);
+#undef OPT
+
+ gcc_assert (argbuf_index > 0);
+
+ name = xstrdup (argbuf[argbuf_index - 1]);
+ }
+
+ which = compare_debug < 0;
+ debug_check_temp_file[which] = name;
+
+#if 0
+ error ("compare-debug: [%i]=\"%s\", ret %s", which, name, ret);
+#endif
+
+ return ret;
+}
+
+static const char *debug_auxbase_opt;
+
+/* %:compare-debug-self-opt spec function. Expands to the options
+ that are to be passed in the second compilation of
+ compare-debug. */
+
+static const char *
+compare_debug_self_opt_spec_function (int arg,
+ const char **argv ATTRIBUTE_UNUSED)
+{
+ if (arg != 0)
+ fatal ("too many arguments to %%:compare-debug-self-opt");
+
+ if (compare_debug >= 0)
+ return NULL;
+
+ do_spec_2 ("%{c|S:%{o*:%*}}");
+ do_spec_1 (" ", 0, NULL);
+
+ if (argbuf_index > 0)
+ debug_auxbase_opt = concat ("-auxbase-strip ",
+ argbuf[argbuf_index - 1],
+ NULL);
+ else
+ debug_auxbase_opt = NULL;
+
+ return concat ("\
+%<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
+%<fdump-final-insns=* -w -S -o %j \
+%{!fcompare-debug-second:-fcompare-debug-second} \
+", compare_debug_opt, NULL);
+}
+
+/* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
+ options that are to be passed in the second compilation of
+ compare-debug. It expects, as an argument, the basename of the
+ current input file name, with the .gk suffix appended to it. */
+
+static const char *
+compare_debug_auxbase_opt_spec_function (int arg,
+ const char **argv)
+{
+ char *name;
+ int len;
+
+ if (arg == 0)
+ fatal ("too few arguments to %%:compare-debug-auxbase-opt");
+
+ if (arg != 1)
+ fatal ("too many arguments to %%:compare-debug-auxbase-opt");
+
+ if (compare_debug >= 0)
+ return NULL;
+
+ len = strlen (argv[0]);
+ if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
+ fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
+
+ if (debug_auxbase_opt)
+ return debug_auxbase_opt;
+
+#define OPT "-auxbase "
+
+ len -= 3;
+ name = (char*) xmalloc (sizeof (OPT) + len);
+ memcpy (name, OPT, sizeof (OPT) - 1);
+ memcpy (name + sizeof (OPT) - 1, argv[0], len);
+ name[sizeof (OPT) - 1 + len] = '\0';
+
+ return name;
+}
OSDN Git Service
