/* CPP Library.
- Copyright (C) 1986, 87, 89, 92-98, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000 Free Software Foundation, Inc.
Contributed by Per Bothner, 1994-95.
Based on CCCP program by Paul Rubin, June 1986
Adapted to ANSI C, Richard Stallman, Jan 1987
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-/* This file will have more stuff in it eventually, but right now
- we just have one hack: we move all the is_* table initialization
- in here, and we can declare them const in cpplib.h, which improves
- code a bit. */
-
#include "config.h"
#include "system.h"
+#include "hashtab.h"
+#include "cpplib.h"
+#include "cpphash.h"
+#include "output.h"
+#include "prefix.h"
+#include "intl.h"
+#include "version.h"
+#include "mkdeps.h"
+
+/* Predefined symbols, built-in macros, and the default include path. */
+
+#ifndef GET_ENV_PATH_LIST
+#define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
+#endif
+
+/* Windows does not natively support inodes, and neither does MSDOS.
+ Cygwin's emulation can generate non-unique inodes, so don't use it.
+ VMS has non-numeric inodes. */
+#ifdef VMS
+#define INO_T_EQ(a, b) (!memcmp (&(a), &(b), sizeof (a)))
+#elif (defined _WIN32 && ! defined (_UWIN)) || defined __MSDOS__
+#define INO_T_EQ(a, b) 0
+#else
+#define INO_T_EQ(a, b) ((a) == (b))
+#endif
+
+#ifndef STANDARD_INCLUDE_DIR
+#define STANDARD_INCLUDE_DIR "/usr/include"
+#endif
+
+/* We let tm.h override the types used here, to handle trivial differences
+ such as the choice of unsigned int or long unsigned int for size_t.
+ When machines start needing nontrivial differences in the size type,
+ it would be best to do something here to figure out automatically
+ from other information what type to use. */
+
+/* The string value for __SIZE_TYPE__. */
+
+#ifndef SIZE_TYPE
+#define SIZE_TYPE "long unsigned int"
+#endif
+
+/* The string value for __PTRDIFF_TYPE__. */
+
+#ifndef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "long int"
+#endif
+
+/* The string value for __WCHAR_TYPE__. */
+
+#ifndef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+#endif
+
+/* The string value for __USER_LABEL_PREFIX__ */
+
+#ifndef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+#endif
+
+/* The string value for __REGISTER_PREFIX__ */
+
+#ifndef REGISTER_PREFIX
+#define REGISTER_PREFIX ""
+#endif
+
+/* This is the default list of directories to search for include files.
+ It may be overridden by the various -I and -ixxx options.
+
+ #include "file" looks in the same directory as the current file,
+ then this list.
+ #include <file> just looks in this list.
+
+ All these directories are treated as `system' include directories
+ (they are not subject to pedantic warnings in some cases). */
+
+struct default_include
+{
+ const char *fname; /* The name of the directory. */
+ const char *component; /* The component containing the directory
+ (see update_path in prefix.c) */
+ int cplusplus; /* Only look here if we're compiling C++. */
+ int cxx_aware; /* Includes in this directory don't need to
+ be wrapped in extern "C" when compiling
+ C++. */
+};
+
+#ifndef STANDARD_INCLUDE_COMPONENT
+#define STANDARD_INCLUDE_COMPONENT 0
+#endif
+
+#ifdef CROSS_COMPILE
+#undef LOCAL_INCLUDE_DIR
+#undef SYSTEM_INCLUDE_DIR
+#undef STANDARD_INCLUDE_DIR
+#else
+#undef CROSS_INCLUDE_DIR
+#endif
+
+static const struct default_include include_defaults_array[]
+#ifdef INCLUDE_DEFAULTS
+= INCLUDE_DEFAULTS;
+#else
+= {
+#ifdef GPLUSPLUS_INCLUDE_DIR
+ /* Pick up GNU C++ specific include files. */
+ { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },
+#endif
+#ifdef LOCAL_INCLUDE_DIR
+ /* /usr/local/include comes before the fixincluded header files. */
+ { LOCAL_INCLUDE_DIR, 0, 0, 1 },
+#endif
+#ifdef GCC_INCLUDE_DIR
+ /* This is the dir for fixincludes and for gcc's private headers. */
+ { GCC_INCLUDE_DIR, "GCC", 0, 0 },
+#endif
+#ifdef CROSS_INCLUDE_DIR
+ /* One place the target system's headers might be. */
+ { CROSS_INCLUDE_DIR, "GCC", 0, 0 },
+#endif
+#ifdef TOOL_INCLUDE_DIR
+ /* Another place the target system's headers might be. */
+ { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1 },
+#endif
+#ifdef SYSTEM_INCLUDE_DIR
+ /* Some systems have an extra dir of include files. */
+ { SYSTEM_INCLUDE_DIR, 0, 0, 0 },
+#endif
+#ifdef STANDARD_INCLUDE_DIR
+ /* /usr/include comes dead last. */
+ { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0 },
+#endif
+ { 0, 0, 0, 0 }
+ };
+#endif /* no INCLUDE_DEFAULTS */
+
+/* Internal structures and prototypes. */
+
+/* A `struct pending_option' remembers one -D, -A, -U, -include, or -imacros
+ switch. There are four lists: one for -D and -U, one for -A, one
+ for -include, one for -imacros. `undef' is set for -U, clear for
+ -D, ignored for the others.
+ (Future: add an equivalent of -U for -A) */
+
+typedef void (* cl_directive_handler) PARAMS ((cpp_reader *, const char *));
+struct pending_option
+{
+ struct pending_option *next;
+ const char *arg;
+ cl_directive_handler handler;
+};
+
+/* The `pending' structure accumulates all the options that are not
+ actually processed until we hit cpp_start_read. It consists of
+ several lists, one for each type of option. We keep both head and
+ tail pointers for quick insertion. */
+struct cpp_pending
+{
+ struct pending_option *directive_head, *directive_tail;
+
+ struct file_name_list *quote_head, *quote_tail;
+ struct file_name_list *brack_head, *brack_tail;
+ struct file_name_list *systm_head, *systm_tail;
+ struct file_name_list *after_head, *after_tail;
+
+ struct pending_option *imacros_head, *imacros_tail;
+ struct pending_option *include_head, *include_tail;
+};
+
+#ifdef __STDC__
+#define APPEND(pend, list, elt) \
+ do { if (!(pend)->list##_head) (pend)->list##_head = (elt); \
+ else (pend)->list##_tail->next = (elt); \
+ (pend)->list##_tail = (elt); \
+ } while (0)
+#else
+#define APPEND(pend, list, elt) \
+ do { if (!(pend)->list/**/_head) (pend)->list/**/_head = (elt); \
+ else (pend)->list/**/_tail->next = (elt); \
+ (pend)->list/**/_tail = (elt); \
+ } while (0)
+#endif
+
+static void print_help PARAMS ((void));
+static void path_include PARAMS ((cpp_reader *,
+ struct cpp_pending *,
+ char *, int));
+static void initialize_builtins PARAMS ((cpp_reader *));
+static void append_include_chain PARAMS ((cpp_reader *,
+ struct cpp_pending *,
+ char *, int, int));
+static void merge_include_chains PARAMS ((cpp_reader *));
+
+static void dump_special_to_buffer PARAMS ((cpp_reader *, const U_CHAR *,
+ size_t));
+static void initialize_dependency_output PARAMS ((cpp_reader *));
+static void initialize_standard_includes PARAMS ((cpp_reader *));
+static void new_pending_directive PARAMS ((struct cpp_pending *,
+ const char *,
+ cl_directive_handler));
+#ifdef HOST_EBCDIC
+static int opt_comp PARAMS ((const void *, const void *));
+#endif
+static int parse_option PARAMS ((const char *));
+static int handle_option PARAMS ((cpp_reader *, int, char **));
+
+/* Fourth argument to append_include_chain: chain to use */
+enum { QUOTE = 0, BRACKET, SYSTEM, AFTER };
+
+/* If we have designated initializers (GCC >2.7) this table can be
+ initialized, constant data. Otherwise, it has to be filled in at
+ runtime. */
+
+#if (GCC_VERSION >= 2007)
+#define init_IStable() /* nothing */
+#define ISTABLE __extension__ const unsigned char _cpp_IStable[256] = {
+#define END };
+#define s(p, v) [p] = v,
+#else
+#define ISTABLE unsigned char _cpp_IStable[256] = { 0 }; \
+ static void init_IStable PARAMS ((void)) { \
+ unsigned char *x = _cpp_IStable;
+#define END }
+#define s(p, v) x[p] = v;
+#endif
+
+#define A(x) s(x, ISidnum|ISidstart)
+#define N(x) s(x, ISidnum|ISnumstart)
+#define H(x) s(x, IShspace|ISspace)
+#define S(x) s(x, ISspace)
+
+ISTABLE
+ A('_')
+
+ A('a') A('b') A('c') A('d') A('e') A('f') A('g') A('h') A('i')
+ A('j') A('k') A('l') A('m') A('n') A('o') A('p') A('q') A('r')
+ A('s') A('t') A('u') A('v') A('w') A('x') A('y') A('z')
+
+ A('A') A('B') A('C') A('D') A('E') A('F') A('G') A('H') A('I')
+ A('J') A('K') A('L') A('M') A('N') A('O') A('P') A('Q') A('R')
+ A('S') A('T') A('U') A('V') A('W') A('X') A('Y') A('Z')
+
+ N('1') N('2') N('3') N('4') N('5') N('6') N('7') N('8') N('9') N('0')
+
+ H('\0') H(' ') H('\t') H('\v') H('\f')
+
+ S('\n')
+END
+
+#undef A
+#undef N
+#undef H
+#undef S
+#undef s
+#undef ISTABLE
+#undef END
+
+/* Given a colon-separated list of file names PATH,
+ add all the names to the search path for include files. */
+
+static void
+path_include (pfile, pend, list, path)
+ cpp_reader *pfile;
+ struct cpp_pending *pend;
+ char *list;
+ int path;
+{
+ char *p, *q, *name;
+
+ p = list;
+
+ do
+ {
+ /* Find the end of this name. */
+ q = p;
+ while (*q != 0 && *q != PATH_SEPARATOR) q++;
+ if (q == p)
+ {
+ /* An empty name in the path stands for the current directory. */
+ name = (char *) xmalloc (2);
+ name[0] = '.';
+ name[1] = 0;
+ }
+ else
+ {
+ /* Otherwise use the directory that is named. */
+ name = (char *) xmalloc (q - p + 1);
+ memcpy (name, p, q - p);
+ name[q - p] = 0;
+ }
+
+ append_include_chain (pfile, pend, name, path, 0);
+
+ /* Advance past this name. */
+ if (*q == 0)
+ break;
+ p = q + 1;
+ }
+ while (1);
+}
+
+/* Append DIR to include path PATH. DIR must be permanently allocated
+ and writable. */
+static void
+append_include_chain (pfile, pend, dir, path, cxx_aware)
+ cpp_reader *pfile;
+ struct cpp_pending *pend;
+ char *dir;
+ int path;
+ int cxx_aware;
+{
+ struct file_name_list *new;
+ struct stat st;
+ unsigned int len;
+
+ _cpp_simplify_pathname (dir);
+ if (stat (dir, &st))
+ {
+ /* Dirs that don't exist are silently ignored. */
+ if (errno != ENOENT)
+ cpp_notice_from_errno (pfile, dir);
+ else if (CPP_OPTION (pfile, verbose))
+ fprintf (stderr, _("ignoring nonexistent directory `%s'\n"), dir);
+ return;
+ }
+
+ if (!S_ISDIR (st.st_mode))
+ {
+ cpp_notice (pfile, "%s: Not a directory", dir);
+ return;
+ }
+
+ len = strlen (dir);
+ if (len > pfile->max_include_len)
+ pfile->max_include_len = len;
+
+ new = (struct file_name_list *) xmalloc (sizeof (struct file_name_list));
+ new->name = dir;
+ new->nlen = len;
+ new->ino = st.st_ino;
+ new->dev = st.st_dev;
+ if (path == SYSTEM)
+ new->sysp = cxx_aware ? 1 : 2;
+ else
+ new->sysp = 0;
+ new->name_map = NULL;
+ new->next = NULL;
+ new->alloc = NULL;
+
+ switch (path)
+ {
+ case QUOTE: APPEND (pend, quote, new); break;
+ case BRACKET: APPEND (pend, brack, new); break;
+ case SYSTEM: APPEND (pend, systm, new); break;
+ case AFTER: APPEND (pend, after, new); break;
+ }
+}
+
+/* Merge the four include chains together in the order quote, bracket,
+ system, after. Remove duplicate dirs (as determined by
+ INO_T_EQ()). The system_include and after_include chains are never
+ referred to again after this function; all access is through the
+ bracket_include path.
+
+ For the future: Check if the directory is empty (but
+ how?) and possibly preload the include hash. */
+
+static void
+merge_include_chains (pfile)
+ cpp_reader *pfile;
+{
+ struct file_name_list *prev, *cur, *other;
+ struct file_name_list *quote, *brack, *systm, *after;
+ struct file_name_list *qtail, *btail, *stail, *atail;
+
+ struct cpp_pending *pend = CPP_OPTION (pfile, pending);
+
+ qtail = pend->quote_tail;
+ btail = pend->brack_tail;
+ stail = pend->systm_tail;
+ atail = pend->after_tail;
+
+ quote = pend->quote_head;
+ brack = pend->brack_head;
+ systm = pend->systm_head;
+ after = pend->after_head;
+
+ /* Paste together bracket, system, and after include chains. */
+ if (stail)
+ stail->next = after;
+ else
+ systm = after;
+ if (btail)
+ btail->next = systm;
+ else
+ brack = systm;
+
+ /* This is a bit tricky.
+ First we drop dupes from the quote-include list.
+ Then we drop dupes from the bracket-include list.
+ Finally, if qtail and brack are the same directory,
+ we cut out qtail.
+
+ We can't just merge the lists and then uniquify them because
+ then we may lose directories from the <> search path that should
+ be there; consider -Ifoo -Ibar -I- -Ifoo -Iquux. It is however
+ safe to treat -Ibar -Ifoo -I- -Ifoo -Iquux as if written
+ -Ibar -I- -Ifoo -Iquux.
+
+ Note that this algorithm is quadratic in the number of -I switches,
+ which is acceptable since there aren't usually that many of them. */
+
+ for (cur = quote, prev = NULL; cur; cur = cur->next)
+ {
+ for (other = quote; other != cur; other = other->next)
+ if (INO_T_EQ (cur->ino, other->ino)
+ && cur->dev == other->dev)
+ {
+ if (CPP_OPTION (pfile, verbose))
+ fprintf (stderr, _("ignoring duplicate directory `%s'\n"),
+ cur->name);
+
+ prev->next = cur->next;
+ free (cur->name);
+ free (cur);
+ cur = prev;
+ break;
+ }
+ prev = cur;
+ }
+ qtail = prev;
+
+ for (cur = brack; cur; cur = cur->next)
+ {
+ for (other = brack; other != cur; other = other->next)
+ if (INO_T_EQ (cur->ino, other->ino)
+ && cur->dev == other->dev)
+ {
+ if (CPP_OPTION (pfile, verbose))
+ fprintf (stderr, _("ignoring duplicate directory `%s'\n"),
+ cur->name);
+
+ prev->next = cur->next;
+ free (cur->name);
+ free (cur);
+ cur = prev;
+ break;
+ }
+ prev = cur;
+ }
+
+ if (quote)
+ {
+ if (INO_T_EQ (qtail->ino, brack->ino) && qtail->dev == brack->dev)
+ {
+ if (quote == qtail)
+ {
+ if (CPP_OPTION (pfile, verbose))
+ fprintf (stderr, _("ignoring duplicate directory `%s'\n"),
+ quote->name);
+
+ free (quote->name);
+ free (quote);
+ quote = brack;
+ }
+ else
+ {
+ cur = quote;
+ while (cur->next != qtail)
+ cur = cur->next;
+ cur->next = brack;
+ if (CPP_OPTION (pfile, verbose))
+ fprintf (stderr, _("ignoring duplicate directory `%s'\n"),
+ qtail->name);
+
+ free (qtail->name);
+ free (qtail);
+ }
+ }
+ else
+ qtail->next = brack;
+ }
+ else
+ quote = brack;
+
+ CPP_OPTION (pfile, quote_include) = quote;
+ CPP_OPTION (pfile, bracket_include) = brack;
+}
+
+
+/* Write out a #define command for the special named MACRO_NAME
+ to PFILE's token_buffer. */
+
+static void
+dump_special_to_buffer (pfile, macro_name, macro_len)
+ cpp_reader *pfile;
+ const U_CHAR *macro_name;
+ size_t macro_len;
+{
+ static const char define_directive[] = "#define ";
+ CPP_RESERVE (pfile, sizeof(define_directive) + macro_len);
+ CPP_PUTS_Q (pfile, define_directive, sizeof(define_directive)-1);
+ CPP_PUTS_Q (pfile, macro_name, macro_len);
+ CPP_PUTC_Q (pfile, ' ');
+ _cpp_expand_to_buffer (pfile, macro_name, macro_len);
+ CPP_PUTC (pfile, '\n');
+}
+
+/* Initialize a cpp_reader structure. */
+void
+cpp_reader_init (pfile)
+ cpp_reader *pfile;
+{
+ memset ((char *) pfile, 0, sizeof (cpp_reader));
+
+ pfile->token_buffer_size = 200;
+ pfile->token_buffer = (U_CHAR *) xmalloc (pfile->token_buffer_size);
+ CPP_SET_WRITTEN (pfile, 0);
+
+ CPP_OPTION (pfile, dollars_in_ident) = 1;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, warn_import) = 1;
+ CPP_OPTION (pfile, discard_comments) = 1;
+ CPP_OPTION (pfile, show_column) = 1;
+
+ CPP_OPTION (pfile, pending) =
+ (struct cpp_pending *) xcalloc (1, sizeof (struct cpp_pending));
+
+ _cpp_init_macro_hash (pfile);
+ _cpp_init_include_hash (pfile);
+}
+
+/* Initialize a cpp_printer structure. As a side effect, open the
+ output file. */
+cpp_printer *
+cpp_printer_init (pfile, print)
+ cpp_reader *pfile;
+ cpp_printer *print;
+{
+ memset (print, '\0', sizeof (cpp_printer));
+ if (CPP_OPTION (pfile, out_fname) == NULL)
+ CPP_OPTION (pfile, out_fname) = "";
+
+ if (CPP_OPTION (pfile, out_fname)[0] == '\0')
+ print->outf = stdout;
+ else
+ {
+ print->outf = fopen (CPP_OPTION (pfile, out_fname), "w");
+ if (! print->outf)
+ {
+ cpp_notice_from_errno (pfile, CPP_OPTION (pfile, out_fname));
+ return NULL;
+ }
+ }
+ return print;
+}
+
+/* Free resources used by PFILE.
+ This is the cpp_reader 'finalizer' or 'destructor' (in C++ terminology). */
+void
+cpp_cleanup (pfile)
+ cpp_reader *pfile;
+{
+ while (CPP_BUFFER (pfile) != NULL)
+ cpp_pop_buffer (pfile);
+
+ if (pfile->token_buffer)
+ {
+ free (pfile->token_buffer);
+ pfile->token_buffer = NULL;
+ }
+
+ if (pfile->input_buffer)
+ {
+ free (pfile->input_buffer);
+ pfile->input_buffer = NULL;
+ pfile->input_buffer_len = 0;
+ }
+
+ if (pfile->deps)
+ deps_free (pfile->deps);
+
+ htab_delete (pfile->hashtab);
+ htab_delete (pfile->all_include_files);
+}
+
+
+/* This structure defines one built-in macro. A node of type TYPE will
+ be entered in the macro hash table under the name NAME, with value
+ VALUE (if any). FLAGS tweaks the behavior a little:
+ DUMP write debug info for this macro
+ VERS value is the global version_string, quoted
+ ULP value is the global user_label_prefix
+ */
+
+struct builtin
+{
+ const U_CHAR *name;
+ const U_CHAR *value;
+ unsigned short type;
+ unsigned short flags;
+ unsigned int len;
+};
+#define DUMP 0x01
+#define VERS 0x02
+#define ULP 0x04
+
+#define B(n, t) { U n, 0, t, 0, sizeof n - 1 }
+#define C(n, v) { U n, U v, T_CONST, DUMP, sizeof n - 1 }
+#define X(n, v, t, f) { U n, U v, t, DUMP|f, sizeof n - 1 }
+static const struct builtin builtin_array[] =
+{
+ B("__TIME__", T_TIME),
+ B("__DATE__", T_DATE),
+ B("__FILE__", T_FILE),
+ B("__BASE_FILE__", T_BASE_FILE),
+ B("__LINE__", T_SPECLINE),
+ B("__INCLUDE_LEVEL__", T_INCLUDE_LEVEL),
+
+ X("__VERSION__", 0, T_XCONST, VERS),
+ X("__USER_LABEL_PREFIX__", 0, T_CONST, ULP),
+ X("__STDC__", "1", T_STDC, 0),
+ C("__REGISTER_PREFIX__", REGISTER_PREFIX),
+ C("__HAVE_BUILTIN_SETJMP__", "1"),
+#ifndef NO_BUILTIN_SIZE_TYPE
+ C("__SIZE_TYPE__", SIZE_TYPE),
+#endif
+#ifndef NO_BUILTIN_PTRDIFF_TYPE
+ C("__PTRDIFF_TYPE__", PTRDIFF_TYPE),
+#endif
+#ifndef NO_BUILTIN_WCHAR_TYPE
+ C("__WCHAR_TYPE__", WCHAR_TYPE),
+#endif
+};
+#undef B
+#undef C
+#undef X
+#define builtin_array_end \
+ builtin_array + sizeof(builtin_array)/sizeof(struct builtin)
+
+/* Subroutine of cpp_start_read; reads the builtins table above and
+ enters the macros into the hash table. */
+static void
+initialize_builtins (pfile)
+ cpp_reader *pfile;
+{
+ const struct builtin *b;
+ const U_CHAR *val;
+ HASHNODE *hp;
+ for(b = builtin_array; b < builtin_array_end; b++)
+ {
+ if (b->type == T_STDC && CPP_TRADITIONAL (pfile))
+ continue;
+
+ if (b->flags & ULP)
+ val = (const U_CHAR *) user_label_prefix;
+ else if (b->flags & VERS)
+ {
+ val = (const U_CHAR *) xmalloc (strlen (version_string) + 3);
+ sprintf ((char *)val, "\"%s\"", version_string);
+ }
+ else
+ val = b->value;
+
+ hp = _cpp_lookup (pfile, b->name, b->len);
+ hp->value.cpval = val;
+ hp->type = b->type;
+
+ if ((b->flags & DUMP) && CPP_OPTION (pfile, debug_output))
+ dump_special_to_buffer (pfile, b->name, b->len);
+ }
+}
+#undef DUMP
+#undef STDC
+#undef VERS
+#undef ULP
+
+/* Another subroutine of cpp_start_read. This one sets up to do
+ dependency-file output. */
+static void
+initialize_dependency_output (pfile)
+ cpp_reader *pfile;
+{
+ char *spec, *s, *output_file;
+
+ /* Either of two environment variables can specify output of deps.
+ Its value is either "OUTPUT_FILE" or "OUTPUT_FILE DEPS_TARGET",
+ where OUTPUT_FILE is the file to write deps info to
+ and DEPS_TARGET is the target to mention in the deps. */
+
+ if (CPP_OPTION (pfile, print_deps) == 0)
+ {
+ spec = getenv ("DEPENDENCIES_OUTPUT");
+ if (spec)
+ CPP_OPTION (pfile, print_deps) = 1;
+ else
+ {
+ spec = getenv ("SUNPRO_DEPENDENCIES");
+ if (spec)
+ CPP_OPTION (pfile, print_deps) = 2;
+ else
+ return;
+ }
+
+ /* Find the space before the DEPS_TARGET, if there is one. */
+ s = strchr (spec, ' ');
+ if (s)
+ {
+ CPP_OPTION (pfile, deps_target) = s + 1;
+ output_file = (char *) xmalloc (s - spec + 1);
+ memcpy (output_file, spec, s - spec);
+ output_file[s - spec] = 0;
+ }
+ else
+ {
+ CPP_OPTION (pfile, deps_target) = 0;
+ output_file = spec;
+ }
+
+ CPP_OPTION (pfile, deps_file) = output_file;
+ CPP_OPTION (pfile, print_deps_append) = 1;
+ }
+
+ pfile->deps = deps_init ();
+
+ /* Print the expected object file name as the target of this Make-rule. */
+ if (CPP_OPTION (pfile, deps_target))
+ deps_add_target (pfile->deps, CPP_OPTION (pfile, deps_target));
+ else if (*CPP_OPTION (pfile, in_fname) == 0)
+ deps_add_target (pfile->deps, "-");
+ else
+ deps_calc_target (pfile->deps, CPP_OPTION (pfile, in_fname));
+
+ if (CPP_OPTION (pfile, in_fname))
+ deps_add_dep (pfile->deps, CPP_OPTION (pfile, in_fname));
+}
+
+/* And another subroutine. This one sets up the standard include path. */
+static void
+initialize_standard_includes (pfile)
+ cpp_reader *pfile;
+{
+ char *path;
+ const struct default_include *p;
+ const char *specd_prefix = CPP_OPTION (pfile, include_prefix);
+
+ /* Several environment variables may add to the include search path.
+ CPATH specifies an additional list of directories to be searched
+ as if specified with -I, while C_INCLUDE_PATH, CPLUS_INCLUDE_PATH,
+ etc. specify an additional list of directories to be searched as
+ if specified with -isystem, for the language indicated. */
+
+ GET_ENV_PATH_LIST (path, "CPATH");
+ if (path != 0 && *path != 0)
+ path_include (pfile, CPP_OPTION (pfile, pending), path, BRACKET);
+
+ switch ((CPP_OPTION (pfile, objc) << 1) + CPP_OPTION (pfile, cplusplus))
+ {
+ case 0:
+ GET_ENV_PATH_LIST (path, "C_INCLUDE_PATH");
+ break;
+ case 1:
+ GET_ENV_PATH_LIST (path, "CPLUS_INCLUDE_PATH");
+ break;
+ case 2:
+ GET_ENV_PATH_LIST (path, "OBJC_INCLUDE_PATH");
+ break;
+ case 3:
+ GET_ENV_PATH_LIST (path, "OBJCPLUS_INCLUDE_PATH");
+ break;
+ }
+ if (path != 0 && *path != 0)
+ path_include (pfile, CPP_OPTION (pfile, pending), path, SYSTEM);
+
+ /* Search "translated" versions of GNU directories.
+ These have /usr/local/lib/gcc... replaced by specd_prefix. */
+ if (specd_prefix != 0)
+ {
+ char *default_prefix = (char *) alloca (sizeof GCC_INCLUDE_DIR - 7);
+ /* Remove the `include' from /usr/local/lib/gcc.../include.
+ GCC_INCLUDE_DIR will always end in /include. */
+ int default_len = sizeof GCC_INCLUDE_DIR - 8;
+ int specd_len = strlen (specd_prefix);
+
+ memcpy (default_prefix, GCC_INCLUDE_DIR, default_len);
+ default_prefix[default_len] = '\0';
+
+ for (p = include_defaults_array; p->fname; p++)
+ {
+ /* Some standard dirs are only for C++. */
+ if (!p->cplusplus
+ || (CPP_OPTION (pfile, cplusplus)
+ && !CPP_OPTION (pfile, no_standard_cplusplus_includes)))
+ {
+ /* Does this dir start with the prefix? */
+ if (!strncmp (p->fname, default_prefix, default_len))
+ {
+ /* Yes; change prefix and add to search list. */
+ int flen = strlen (p->fname);
+ int this_len = specd_len + flen - default_len;
+ char *str = (char *) xmalloc (this_len + 1);
+ memcpy (str, specd_prefix, specd_len);
+ memcpy (str + specd_len,
+ p->fname + default_len,
+ flen - default_len + 1);
+
+ append_include_chain (pfile, CPP_OPTION (pfile, pending),
+ str, SYSTEM, p->cxx_aware);
+ }
+ }
+ }
+ }
+
+ /* Search ordinary names for GNU include directories. */
+ for (p = include_defaults_array; p->fname; p++)
+ {
+ /* Some standard dirs are only for C++. */
+ if (!p->cplusplus
+ || (CPP_OPTION (pfile, cplusplus)
+ && !CPP_OPTION (pfile, no_standard_cplusplus_includes)))
+ {
+ /* XXX Potential memory leak! */
+ char *str = xstrdup (update_path (p->fname, p->component));
+ append_include_chain (pfile, CPP_OPTION (pfile, pending),
+ str, SYSTEM, p->cxx_aware);
+ }
+ }
+}
+
+/* This is called after options have been processed.
+ * Check options for consistency, and setup for processing input
+ * from the file named FNAME. (Use standard input if FNAME==NULL.)
+ * Return 1 on success, 0 on failure.
+ */
+
+int
+cpp_start_read (pfile, print, fname)
+ cpp_reader *pfile;
+ cpp_printer *print;
+ const char *fname;
+{
+ struct pending_option *p, *q;
+
+ /* -MG doesn't select the form of output and must be specified with one of
+ -M or -MM. -MG doesn't make sense with -MD or -MMD since they don't
+ inhibit compilation. */
+ if (CPP_OPTION (pfile, print_deps_missing_files)
+ && (CPP_OPTION (pfile, print_deps) == 0
+ || !CPP_OPTION (pfile, no_output)))
+ {
+ cpp_fatal (pfile, "-MG must be specified with one of -M or -MM");
+ return 0;
+ }
+
+ /* Chill should not be used with -trigraphs. */
+ if (CPP_OPTION (pfile, chill) && CPP_OPTION (pfile, trigraphs))
+ {
+ cpp_warning (pfile, "-lang-chill and -trigraphs are mutually exclusive");
+ CPP_OPTION (pfile, trigraphs) = 0;
+ }
+
+ /* -Wtraditional is not useful in C++ mode. */
+ if (CPP_OPTION (pfile, cplusplus))
+ CPP_OPTION (pfile, warn_traditional) = 0;
+
+ /* Set this if it hasn't been set already. */
+ if (user_label_prefix == NULL)
+ user_label_prefix = USER_LABEL_PREFIX;
+
+ /* Don't bother trying to do macro expansion if we've already done
+ preprocessing. */
+ if (CPP_OPTION (pfile, preprocessed))
+ pfile->no_macro_expand++;
+
+ /* Set up the IStable. This doesn't do anything if we were compiled
+ with a compiler that supports C99 designated initializers. */
+ init_IStable ();
+
+ /* Set up the tables used by read_and_prescan. */
+ _cpp_init_input_buffer (pfile);
+
+ /* Set up the include search path now. */
+ if (! CPP_OPTION (pfile, no_standard_includes))
+ initialize_standard_includes (pfile);
+
+ merge_include_chains (pfile);
+
+ /* With -v, print the list of dirs to search. */
+ if (CPP_OPTION (pfile, verbose))
+ {
+ struct file_name_list *l;
+ fprintf (stderr, _("#include \"...\" search starts here:\n"));
+ for (l = CPP_OPTION (pfile, quote_include); l; l = l->next)
+ {
+ if (l == CPP_OPTION (pfile, bracket_include))
+ fprintf (stderr, _("#include <...> search starts here:\n"));
+ fprintf (stderr, " %s\n", l->name);
+ }
+ fprintf (stderr, _("End of search list.\n"));
+ }
+
+ /* Open the main input file. This must be done early, so we have a
+ buffer to stand on. */
+ if (CPP_OPTION (pfile, in_fname) == NULL
+ || *CPP_OPTION (pfile, in_fname) == 0)
+ {
+ CPP_OPTION (pfile, in_fname) = fname;
+ if (CPP_OPTION (pfile, in_fname) == NULL)
+ CPP_OPTION (pfile, in_fname) = "";
+ }
+ if (CPP_OPTION (pfile, out_fname) == NULL)
+ CPP_OPTION (pfile, out_fname) = "";
+
+ if (!cpp_read_file (pfile, fname))
+ return 0;
+
+ initialize_dependency_output (pfile);
+
+ /* -D and friends may produce output, which should be identified
+ as line 0. */
+
+ CPP_BUFFER (pfile)->lineno = 0;
+
+ if (print)
+ {
+ print->lineno = 0;
+ print->last_fname = CPP_BUFFER (pfile)->nominal_fname;
+ print->last_bsd = pfile->buffer_stack_depth;
+ print->written = CPP_WRITTEN (pfile);
+ }
+
+ /* Install __LINE__, etc. */
+ initialize_builtins (pfile);
+
+ /* Do -U's, -D's and -A's in the order they were seen. */
+ p = CPP_OPTION (pfile, pending)->directive_head;
+ while (p)
+ {
+ (*p->handler) (pfile, p->arg);
+ q = p->next;
+ free (p);
+ p = q;
+ }
+ pfile->done_initializing = 1;
+ pfile->only_seen_white = 2;
+ CPP_BUFFER (pfile)->lineno = 1;
+ if (print && ! CPP_OPTION (pfile, no_output))
+ cpp_output_tokens (pfile, print);
+
+ /* The -imacros files can be scanned now, but the -include files
+ have to be pushed onto the include stack and processed later,
+ in the main loop calling cpp_get_token. */
+
+ p = CPP_OPTION (pfile, pending)->imacros_head;
+ while (p)
+ {
+ if (cpp_read_file (pfile, p->arg))
+ cpp_scan_buffer_nooutput (pfile);
+ q = p->next;
+ free (p);
+ p = q;
+ }
+
+ p = CPP_OPTION (pfile, pending)->include_head;
+ while (p)
+ {
+ if (cpp_read_file (pfile, p->arg)
+ && print && ! CPP_OPTION (pfile, no_output))
+ cpp_output_tokens (pfile, print);
+ q = p->next;
+ free (p);
+ p = q;
+ }
+
+ free (CPP_OPTION (pfile, pending));
+ CPP_OPTION (pfile, pending) = NULL;
+
+ return 1;
+}
-typedef unsigned char U_CHAR;
-
-/* table to tell if char can be part of a C identifier. */
-U_CHAR is_idchar[256] = { 0 };
-/* table to tell if char can be first char of a c identifier. */
-U_CHAR is_idstart[256] = { 0 };
-/* table to tell if c is horizontal space. */
-U_CHAR is_hor_space[256] = { 0 };
-/* table to tell if c is horizontal or vertical space. */
-U_CHAR is_space[256] = { 0 };
-/* Table to handle trigraph conversion, which occurs before all other
- processing, everywhere in the file. (This is necessary since one
- of the trigraphs encodes backslash.) Note it's off by default.
-
- from to from to from to
- ?? = # ?? ) ] ?? ! |
- ?? ( [ ?? ' ^ ?? > }
- ?? / \ ?? < { ?? - ~
-
- There is not a space between the ?? and the third char. I put spaces
- there to avoid warnings when compiling this file. */
-U_CHAR trigraph_table[256] = { 0 };
-
-/* Initialize syntactic classifications of characters. */
+/* This is called at the end of preprocessing. It pops the
+ last buffer and writes dependency output. It should also
+ clear macro definitions, such that you could call cpp_start_read
+ with a new filename to restart processing. */
void
-initialize_char_syntax (dollar_in_ident)
- int dollar_in_ident;
-{
- is_idstart['a'] = 1; is_idstart['b'] = 1; is_idstart['c'] = 1;
- is_idstart['d'] = 1; is_idstart['e'] = 1; is_idstart['f'] = 1;
- is_idstart['g'] = 1; is_idstart['h'] = 1; is_idstart['i'] = 1;
- is_idstart['j'] = 1; is_idstart['k'] = 1; is_idstart['l'] = 1;
- is_idstart['m'] = 1; is_idstart['n'] = 1; is_idstart['o'] = 1;
- is_idstart['p'] = 1; is_idstart['q'] = 1; is_idstart['r'] = 1;
- is_idstart['s'] = 1; is_idstart['t'] = 1; is_idstart['u'] = 1;
- is_idstart['v'] = 1; is_idstart['w'] = 1; is_idstart['x'] = 1;
- is_idstart['y'] = 1; is_idstart['z'] = 1;
-
- is_idstart['A'] = 1; is_idstart['B'] = 1; is_idstart['C'] = 1;
- is_idstart['D'] = 1; is_idstart['E'] = 1; is_idstart['F'] = 1;
- is_idstart['G'] = 1; is_idstart['H'] = 1; is_idstart['I'] = 1;
- is_idstart['J'] = 1; is_idstart['K'] = 1; is_idstart['L'] = 1;
- is_idstart['M'] = 1; is_idstart['N'] = 1; is_idstart['O'] = 1;
- is_idstart['P'] = 1; is_idstart['Q'] = 1; is_idstart['R'] = 1;
- is_idstart['S'] = 1; is_idstart['T'] = 1; is_idstart['U'] = 1;
- is_idstart['V'] = 1; is_idstart['W'] = 1; is_idstart['X'] = 1;
- is_idstart['Y'] = 1; is_idstart['Z'] = 1;
-
- is_idstart['_'] = 1;
-
- is_idchar['a'] = 1; is_idchar['b'] = 1; is_idchar['c'] = 1;
- is_idchar['d'] = 1; is_idchar['e'] = 1; is_idchar['f'] = 1;
- is_idchar['g'] = 1; is_idchar['h'] = 1; is_idchar['i'] = 1;
- is_idchar['j'] = 1; is_idchar['k'] = 1; is_idchar['l'] = 1;
- is_idchar['m'] = 1; is_idchar['n'] = 1; is_idchar['o'] = 1;
- is_idchar['p'] = 1; is_idchar['q'] = 1; is_idchar['r'] = 1;
- is_idchar['s'] = 1; is_idchar['t'] = 1; is_idchar['u'] = 1;
- is_idchar['v'] = 1; is_idchar['w'] = 1; is_idchar['x'] = 1;
- is_idchar['y'] = 1; is_idchar['z'] = 1;
-
- is_idchar['A'] = 1; is_idchar['B'] = 1; is_idchar['C'] = 1;
- is_idchar['D'] = 1; is_idchar['E'] = 1; is_idchar['F'] = 1;
- is_idchar['G'] = 1; is_idchar['H'] = 1; is_idchar['I'] = 1;
- is_idchar['J'] = 1; is_idchar['K'] = 1; is_idchar['L'] = 1;
- is_idchar['M'] = 1; is_idchar['N'] = 1; is_idchar['O'] = 1;
- is_idchar['P'] = 1; is_idchar['Q'] = 1; is_idchar['R'] = 1;
- is_idchar['S'] = 1; is_idchar['T'] = 1; is_idchar['U'] = 1;
- is_idchar['V'] = 1; is_idchar['W'] = 1; is_idchar['X'] = 1;
- is_idchar['Y'] = 1; is_idchar['Z'] = 1;
-
- is_idchar['1'] = 1; is_idchar['2'] = 1; is_idchar['3'] = 1;
- is_idchar['4'] = 1; is_idchar['5'] = 1; is_idchar['6'] = 1;
- is_idchar['7'] = 1; is_idchar['8'] = 1; is_idchar['9'] = 1;
- is_idchar['0'] = 1;
-
- is_idchar['_'] = 1;
-
- /* These will be reset later if -$ is in effect. */
- is_idchar['$'] = dollar_in_ident;
- is_idstart['$'] = dollar_in_ident;
-
- /* horizontal space table */
- is_hor_space[' '] = 1;
- is_hor_space['\t'] = 1;
- is_hor_space['\v'] = 1;
- is_hor_space['\f'] = 1;
- is_hor_space['\r'] = 1;
-
- is_space[' '] = 1;
- is_space['\t'] = 1;
- is_space['\v'] = 1;
- is_space['\f'] = 1;
- is_space['\n'] = 1;
- is_space['\r'] = 1;
-
- /* trigraph conversion */
- trigraph_table['='] = '#'; trigraph_table[')'] = ']';
- trigraph_table['!'] = '|'; trigraph_table['('] = '[';
- trigraph_table['\''] = '^'; trigraph_table['>'] = '}';
- trigraph_table['/'] = '\\'; trigraph_table['<'] = '{';
- trigraph_table['-'] = '~';
+cpp_finish (pfile, print)
+ cpp_reader *pfile;
+ cpp_printer *print;
+{
+ if (CPP_BUFFER (pfile))
+ {
+ cpp_ice (pfile, "buffers still stacked in cpp_finish");
+ while (CPP_BUFFER (pfile))
+ cpp_pop_buffer (pfile);
+ }
+
+ /* Don't write the deps file if preprocessing has failed. */
+ if (CPP_OPTION (pfile, print_deps) && pfile->errors == 0)
+ {
+ /* Stream on which to print the dependency information. */
+ FILE *deps_stream = 0;
+ const char *deps_mode
+ = CPP_OPTION (pfile, print_deps_append) ? "a" : "w";
+ if (CPP_OPTION (pfile, deps_file) == 0)
+ deps_stream = stdout;
+ else
+ {
+ deps_stream = fopen (CPP_OPTION (pfile, deps_file), deps_mode);
+ if (deps_stream == 0)
+ cpp_notice_from_errno (pfile, CPP_OPTION (pfile, deps_file));
+ }
+ if (deps_stream)
+ {
+ deps_write (pfile->deps, deps_stream, 72);
+ if (CPP_OPTION (pfile, deps_file))
+ {
+ if (ferror (deps_stream) || fclose (deps_stream) != 0)
+ cpp_fatal (pfile, "I/O error on output");
+ }
+ }
+ }
+
+ if (CPP_OPTION (pfile, dump_macros) == dump_only)
+ _cpp_dump_macro_hash (pfile);
+
+ /* Flush any pending output. */
+ if (print)
+ {
+ cpp_output_tokens (pfile, print);
+ if (ferror (print->outf) || fclose (print->outf))
+ cpp_notice_from_errno (pfile, CPP_OPTION (pfile, out_fname));
+ }
+}
+
+static void
+new_pending_directive (pend, text, handler)
+ struct cpp_pending *pend;
+ const char *text;
+ cl_directive_handler handler;
+{
+ struct pending_option *o = (struct pending_option *)
+ xmalloc (sizeof (struct pending_option));
+
+ o->arg = text;
+ o->next = NULL;
+ o->handler = handler;
+ APPEND (pend, directive, o);
+}
+
+/* Irix6 "cc -n32" and OSF4 cc have problems with char foo[] = ("string");
+ I.e. a const string initializer with parens around it. That is
+ what N_("string") resolves to, so we make no_* be macros instead. */
+#define no_arg N_("Argument missing after %s")
+#define no_ass N_("Assertion missing after %s")
+#define no_dir N_("Directory name missing after %s")
+#define no_fil N_("File name missing after %s")
+#define no_mac N_("Macro name missing after %s")
+#define no_pth N_("Path name missing after %s")
+
+/* This is the list of all command line options, with the leading
+ "-" removed. It must be sorted in ASCII collating order. */
+#define COMMAND_LINE_OPTIONS \
+ DEF_OPT("", 0, OPT_stdin_stdout) \
+ DEF_OPT("$", 0, OPT_dollar) \
+ DEF_OPT("+", 0, OPT_plus) \
+ DEF_OPT("-help", 0, OPT__help) \
+ DEF_OPT("-version", 0, OPT__version) \
+ DEF_OPT("A", no_ass, OPT_A) \
+ DEF_OPT("C", 0, OPT_C) \
+ DEF_OPT("D", no_mac, OPT_D) \
+ DEF_OPT("H", 0, OPT_H) \
+ DEF_OPT("I", no_dir, OPT_I) \
+ DEF_OPT("M", 0, OPT_M) \
+ DEF_OPT("MD", no_fil, OPT_MD) \
+ DEF_OPT("MG", 0, OPT_MG) \
+ DEF_OPT("MM", 0, OPT_MM) \
+ DEF_OPT("MMD", no_fil, OPT_MMD) \
+ DEF_OPT("P", 0, OPT_P) \
+ DEF_OPT("U", no_mac, OPT_U) \
+ DEF_OPT("W", no_arg, OPT_W) /* arg optional */ \
+ DEF_OPT("d", no_arg, OPT_d) \
+ DEF_OPT("fleading-underscore", 0, OPT_fleading_underscore) \
+ DEF_OPT("fno-leading-underscore", 0, OPT_fno_leading_underscore) \
+ DEF_OPT("fno-preprocessed", 0, OPT_fno_preprocessed) \
+ DEF_OPT("fno-show-column", 0, OPT_fno_show_column) \
+ DEF_OPT("fpreprocessed", 0, OPT_fpreprocessed) \
+ DEF_OPT("fshow-column", 0, OPT_fshow_column) \
+ DEF_OPT("g", no_arg, OPT_g) /* arg optional */ \
+ DEF_OPT("h", 0, OPT_h) \
+ DEF_OPT("idirafter", no_dir, OPT_idirafter) \
+ DEF_OPT("imacros", no_fil, OPT_imacros) \
+ DEF_OPT("include", no_fil, OPT_include) \
+ DEF_OPT("iprefix", no_pth, OPT_iprefix) \
+ DEF_OPT("isystem", no_dir, OPT_isystem) \
+ DEF_OPT("iwithprefix", no_dir, OPT_iwithprefix) \
+ DEF_OPT("iwithprefixbefore", no_dir, OPT_iwithprefixbefore) \
+ DEF_OPT("lang-asm", 0, OPT_lang_asm) \
+ DEF_OPT("lang-c", 0, OPT_lang_c) \
+ DEF_OPT("lang-c++", 0, OPT_lang_cplusplus) \
+ DEF_OPT("lang-c89", 0, OPT_lang_c89) \
+ DEF_OPT("lang-chill", 0, OPT_lang_chill) \
+ DEF_OPT("lang-fortran", 0, OPT_lang_fortran) \
+ DEF_OPT("lang-objc", 0, OPT_lang_objc) \
+ DEF_OPT("lang-objc++", 0, OPT_lang_objcplusplus) \
+ DEF_OPT("nostdinc", 0, OPT_nostdinc) \
+ DEF_OPT("nostdinc++", 0, OPT_nostdincplusplus) \
+ DEF_OPT("o", no_fil, OPT_o) \
+ DEF_OPT("pedantic", 0, OPT_pedantic) \
+ DEF_OPT("pedantic-errors", 0, OPT_pedantic_errors) \
+ DEF_OPT("remap", 0, OPT_remap) \
+ DEF_OPT("std=c89", 0, OPT_std_c89) \
+ DEF_OPT("std=c99", 0, OPT_std_c99) \
+ DEF_OPT("std=c9x", 0, OPT_std_c9x) \
+ DEF_OPT("std=gnu89", 0, OPT_std_gnu89) \
+ DEF_OPT("std=gnu99", 0, OPT_std_gnu99) \
+ DEF_OPT("std=gnu9x", 0, OPT_std_gnu9x) \
+ DEF_OPT("std=iso9899:1990", 0, OPT_std_iso9899_1990) \
+ DEF_OPT("std=iso9899:199409", 0, OPT_std_iso9899_199409) \
+ DEF_OPT("std=iso9899:1999", 0, OPT_std_iso9899_1999) \
+ DEF_OPT("std=iso9899:199x", 0, OPT_std_iso9899_199x) \
+ DEF_OPT("traditional", 0, OPT_traditional) \
+ DEF_OPT("trigraphs", 0, OPT_trigraphs) \
+ DEF_OPT("v", 0, OPT_v) \
+ DEF_OPT("w", 0, OPT_w)
+
+#define DEF_OPT(text, msg, code) code,
+enum opt_code
+{
+ COMMAND_LINE_OPTIONS
+ N_OPTS
+};
+#undef DEF_OPT
+
+struct cl_option
+{
+ const char *opt_text;
+ const char *msg;
+ size_t opt_len;
+ enum opt_code opt_code;
+};
+
+#define DEF_OPT(text, msg, code) { text, msg, sizeof(text) - 1, code },
+#ifdef HOST_EBCDIC
+static struct cl_option cl_options[] =
+#else
+static const struct cl_option cl_options[] =
+#endif
+{
+ COMMAND_LINE_OPTIONS
+};
+#undef DEF_OPT
+#undef COMMAND_LINE_OPTIONS
+
+/* Perform a binary search to find which, if any, option the given
+ command-line matches. Returns its index in the option array,
+ negative on failure. Complications arise since some options can be
+ suffixed with an argument, and multiple complete matches can occur,
+ e.g. -iwithprefix and -iwithprefixbefore. Moreover, we want to
+ accept options beginning with -g and -W that we do not recognise,
+ but not to swallow any subsequent command line argument; these are
+ handled as special cases in cpp_handle_option */
+static int
+parse_option (input)
+ const char *input;
+{
+ unsigned int md, mn, mx;
+ size_t opt_len;
+ int comp;
+
+ mn = 0;
+ mx = N_OPTS;
+
+ while (mx > mn)
+ {
+ md = (mn + mx) / 2;
+
+ opt_len = cl_options[md].opt_len;
+ comp = strncmp (input, cl_options[md].opt_text, opt_len);
+
+ if (comp > 0)
+ mn = md + 1;
+ else if (comp < 0)
+ mx = md;
+ else
+ {
+ if (input[opt_len] == '\0')
+ return md;
+ /* We were passed more text. If the option takes an argument,
+ we may match a later option or we may have been passed the
+ argument. The longest possible option match succeeds.
+ If the option takes no arguments we have not matched and
+ continue the search (e.g. input="stdc++" match was "stdc") */
+ mn = md + 1;
+ if (cl_options[md].msg)
+ {
+ /* Scan forwards. If we get an exact match, return it.
+ Otherwise, return the longest option-accepting match.
+ This loops no more than twice with current options */
+ mx = md;
+ for (; mn < N_OPTS; mn++)
+ {
+ opt_len = cl_options[mn].opt_len;
+ if (strncmp (input, cl_options[mn].opt_text, opt_len))
+ break;
+ if (input[opt_len] == '\0')
+ return mn;
+ if (cl_options[mn].msg)
+ mx = mn;
+ }
+ return mx;
+ }
+ }
+ }
+
+ return -1;
+}
+
+/* Handle one command-line option in (argc, argv).
+ Can be called multiple times, to handle multiple sets of options.
+ Returns number of strings consumed. */
+
+static int
+handle_option (pfile, argc, argv)
+ cpp_reader *pfile;
+ int argc;
+ char **argv;
+{
+ int i = 0;
+
+ if (argv[i][0] != '-')
+ {
+ if (CPP_OPTION (pfile, out_fname) != NULL)
+ cpp_fatal (pfile, "Too many arguments. Type %s --help for usage info",
+ progname);
+ else if (CPP_OPTION (pfile, in_fname) != NULL)
+ CPP_OPTION (pfile, out_fname) = argv[i];
+ else
+ CPP_OPTION (pfile, in_fname) = argv[i];
+ }
+ else
+ {
+ enum opt_code opt_code;
+ int opt_index;
+ const char *arg = 0;
+
+ /* Skip over '-' */
+ opt_index = parse_option (&argv[i][1]);
+ if (opt_index < 0)
+ return i;
+
+ opt_code = cl_options[opt_index].opt_code;
+ if (cl_options[opt_index].msg)
+ {
+ arg = &argv[i][cl_options[opt_index].opt_len + 1];
+
+ /* Yuk. Special case for -g and -W as they must not swallow
+ up any following argument. If this becomes common, add
+ another field to the cl_options table */
+ if (arg[0] == '\0' && !(opt_code == OPT_g || opt_code == OPT_W))
+ {
+ arg = argv[++i];
+ if (!arg)
+ {
+ cpp_fatal (pfile, cl_options[opt_index].msg, argv[i - 1]);
+ return argc;
+ }
+ }
+ }
+
+ switch (opt_code)
+ {
+ case N_OPTS: /* shut GCC up */
+ break;
+ case OPT_fleading_underscore:
+ user_label_prefix = "_";
+ break;
+ case OPT_fno_leading_underscore:
+ user_label_prefix = "";
+ break;
+ case OPT_fpreprocessed:
+ CPP_OPTION (pfile, preprocessed) = 1;
+ break;
+ case OPT_fno_preprocessed:
+ CPP_OPTION (pfile, preprocessed) = 0;
+ break;
+ case OPT_fshow_column:
+ CPP_OPTION (pfile, show_column) = 1;
+ break;
+ case OPT_fno_show_column:
+ CPP_OPTION (pfile, show_column) = 0;
+ break;
+ case OPT_w:
+ CPP_OPTION (pfile, inhibit_warnings) = 1;
+ break;
+ case OPT_g: /* Silently ignore anything but -g3 */
+ if (!strcmp(&argv[i][2], "3"))
+ CPP_OPTION (pfile, debug_output) = 1;
+ break;
+ case OPT_h:
+ case OPT__help:
+ print_help ();
+ exit (0); /* XXX */
+ break;
+ case OPT__version:
+ fprintf (stderr, _("GNU CPP version %s (cpplib)\n"), version_string);
+ exit (0); /* XXX */
+ break;
+ case OPT_C:
+ CPP_OPTION (pfile, discard_comments) = 0;
+ break;
+ case OPT_P:
+ CPP_OPTION (pfile, no_line_commands) = 1;
+ break;
+ case OPT_dollar: /* Don't include $ in identifiers. */
+ CPP_OPTION (pfile, dollars_in_ident) = 0;
+ break;
+ case OPT_H:
+ CPP_OPTION (pfile, print_include_names) = 1;
+ break;
+ case OPT_D:
+ new_pending_directive (CPP_OPTION (pfile, pending), arg, cpp_define);
+ break;
+ case OPT_pedantic_errors:
+ CPP_OPTION (pfile, pedantic_errors) = 1;
+ /* fall through */
+ case OPT_pedantic:
+ CPP_OPTION (pfile, pedantic) = 1;
+ break;
+ case OPT_traditional:
+ CPP_OPTION (pfile, traditional) = 1;
+ CPP_OPTION (pfile, cplusplus_comments) = 0;
+ CPP_OPTION (pfile, trigraphs) = 0;
+ CPP_OPTION (pfile, warn_trigraphs) = 0;
+ break;
+ case OPT_trigraphs:
+ CPP_OPTION (pfile, trigraphs) = 1;
+ break;
+ case OPT_plus:
+ CPP_OPTION (pfile, cplusplus) = 1;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ break;
+ case OPT_remap:
+ CPP_OPTION (pfile, remap) = 1;
+ break;
+ case OPT_iprefix:
+ CPP_OPTION (pfile, include_prefix) = arg;
+ CPP_OPTION (pfile, include_prefix_len) = strlen (arg);
+ break;
+ case OPT_lang_c:
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, c89) = 0;
+ CPP_OPTION (pfile, c99) = 1;
+ CPP_OPTION (pfile, objc) = 0;
+ break;
+ case OPT_lang_c89:
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, cplusplus_comments) = 0;
+ CPP_OPTION (pfile, c89) = 1;
+ CPP_OPTION (pfile, c99) = 0;
+ CPP_OPTION (pfile, objc) = 0;
+ CPP_OPTION (pfile, trigraphs) = 1;
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ "__STRICT_ANSI__", cpp_define);
+ break;
+ case OPT_lang_cplusplus:
+ CPP_OPTION (pfile, cplusplus) = 1;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, c89) = 0;
+ CPP_OPTION (pfile, c99) = 0;
+ CPP_OPTION (pfile, objc) = 0;
+ break;
+ case OPT_lang_objc:
+ case OPT_lang_objcplusplus:
+ CPP_OPTION (pfile, cplusplus) = opt_code == OPT_lang_objcplusplus;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, c89) = 0;
+ CPP_OPTION (pfile, c99) = 0;
+ CPP_OPTION (pfile, objc) = 1;
+ break;
+ case OPT_lang_asm:
+ CPP_OPTION (pfile, lang_asm) = 1;
+ break;
+ case OPT_lang_fortran:
+ CPP_OPTION (pfile, lang_fortran) = 1;
+ CPP_OPTION (pfile, cplusplus_comments) = 0;
+ break;
+ case OPT_lang_chill:
+ CPP_OPTION (pfile, objc) = 0;
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, chill) = 1;
+ CPP_OPTION (pfile, traditional) = 1;
+ break;
+ case OPT_nostdinc:
+ /* -nostdinc causes no default include directories.
+ You must specify all include-file directories with -I. */
+ CPP_OPTION (pfile, no_standard_includes) = 1;
+ break;
+ case OPT_nostdincplusplus:
+ /* -nostdinc++ causes no default C++-specific include directories. */
+ CPP_OPTION (pfile, no_standard_cplusplus_includes) = 1;
+ break;
+ case OPT_std_gnu89:
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, c89) = 1;
+ CPP_OPTION (pfile, c99) = 0;
+ CPP_OPTION (pfile, objc) = 0;
+ break;
+ case OPT_std_gnu9x:
+ case OPT_std_gnu99:
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, c89) = 0;
+ CPP_OPTION (pfile, c99) = 1;
+ CPP_OPTION (pfile, objc) = 0;
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ "__STDC_VERSION__=199901L", cpp_define);
+ break;
+ case OPT_std_iso9899_199409:
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ "__STDC_VERSION__=199409L", cpp_define);
+ /* Fall through */
+ case OPT_std_iso9899_1990:
+ case OPT_std_c89:
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, cplusplus_comments) = 0;
+ CPP_OPTION (pfile, c89) = 1;
+ CPP_OPTION (pfile, c99) = 0;
+ CPP_OPTION (pfile, objc) = 0;
+ CPP_OPTION (pfile, trigraphs) = 1;
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ "__STRICT_ANSI__", cpp_define);
+ break;
+ case OPT_std_iso9899_199x:
+ case OPT_std_iso9899_1999:
+ case OPT_std_c9x:
+ case OPT_std_c99:
+ CPP_OPTION (pfile, cplusplus) = 0;
+ CPP_OPTION (pfile, cplusplus_comments) = 1;
+ CPP_OPTION (pfile, c89) = 0;
+ CPP_OPTION (pfile, c99) = 1;
+ CPP_OPTION (pfile, objc) = 0;
+ CPP_OPTION (pfile, trigraphs) = 1;
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ "__STRICT_ANSI__", cpp_define);
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ "__STDC_VERSION__=199901L", cpp_define);
+ break;
+ case OPT_o:
+ if (CPP_OPTION (pfile, out_fname) != NULL)
+ {
+ cpp_fatal (pfile, "Output filename specified twice");
+ return argc;
+ }
+ CPP_OPTION (pfile, out_fname) = arg;
+ if (!strcmp (CPP_OPTION (pfile, out_fname), "-"))
+ CPP_OPTION (pfile, out_fname) = "";
+ break;
+ case OPT_v:
+ fprintf (stderr, _("GNU CPP version %s (cpplib)\n"), version_string);
+#ifdef TARGET_VERSION
+ TARGET_VERSION;
+#endif
+ fputc ('\n', stderr);
+ CPP_OPTION (pfile, verbose) = 1;
+ break;
+ case OPT_stdin_stdout:
+ /* JF handle '-' as file name meaning stdin or stdout */
+ if (CPP_OPTION (pfile, in_fname) == NULL)
+ CPP_OPTION (pfile, in_fname) = "";
+ else if (CPP_OPTION (pfile, out_fname) == NULL)
+ CPP_OPTION (pfile, out_fname) = "";
+ break;
+ case OPT_d:
+ /* Args to -d specify what parts of macros to dump.
+ Silently ignore unrecognised options; they may
+ be aimed at the compiler proper. */
+ {
+ char c;
+
+ while ((c = *arg++) != '\0')
+ switch (c)
+ {
+ case 'M':
+ CPP_OPTION (pfile, dump_macros) = dump_only;
+ CPP_OPTION (pfile, no_output) = 1;
+ break;
+ case 'N':
+ CPP_OPTION (pfile, dump_macros) = dump_names;
+ break;
+ case 'D':
+ CPP_OPTION (pfile, dump_macros) = dump_definitions;
+ break;
+ case 'I':
+ CPP_OPTION (pfile, dump_includes) = 1;
+ break;
+ }
+ }
+ break;
+ /* The style of the choices here is a bit mixed.
+ The chosen scheme is a hybrid of keeping all options in one string
+ and specifying each option in a separate argument:
+ -M|-MM|-MD file|-MMD file [-MG]. An alternative is:
+ -M|-MM|-MD file|-MMD file|-MG|-MMG; or more concisely:
+ -M[M][G][D file]. This is awkward to handle in specs, and is not
+ as extensible. */
+ /* ??? -MG must be specified in addition to one of -M or -MM.
+ This can be relaxed in the future without breaking anything.
+ The converse isn't true. */
+
+ /* -MG isn't valid with -MD or -MMD. This is checked for later. */
+ case OPT_MG:
+ CPP_OPTION (pfile, print_deps_missing_files) = 1;
+ break;
+ case OPT_M:
+ case OPT_MD:
+ case OPT_MM:
+ case OPT_MMD:
+ if (opt_code == OPT_M || opt_code == OPT_MD)
+ CPP_OPTION (pfile, print_deps) = 2;
+ else
+ CPP_OPTION (pfile, print_deps) = 1;
+
+ /* For -MD and -MMD options, write deps on file named by next arg */
+ /* For -M and -MM, write deps on standard output
+ and suppress the usual output. */
+ if (opt_code == OPT_MD || opt_code == OPT_MMD)
+ CPP_OPTION (pfile, deps_file) = arg;
+ else
+ CPP_OPTION (pfile, no_output) = 1;
+ break;
+ case OPT_A:
+ if (arg[0] == '-')
+ {
+ /* -A with an argument beginning with '-' acts as
+ #unassert on whatever immediately follows the '-'.
+ If "-" is the whole argument, we eliminate all
+ predefined macros and assertions, including those
+ that were specified earlier on the command line.
+ That way we can get rid of any that were passed
+ automatically in from GCC. */
+
+ if (arg[1] == '\0')
+ {
+ struct pending_option *o1, *o2;
+
+ o1 = CPP_OPTION (pfile, pending)->directive_head;
+ while (o1)
+ {
+ o2 = o1->next;
+ free (o1);
+ o1 = o2;
+ }
+ CPP_OPTION (pfile, pending)->directive_head = NULL;
+ CPP_OPTION (pfile, pending)->directive_tail = NULL;
+ }
+ else
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ arg + 1, cpp_unassert);
+ }
+ else
+ new_pending_directive (CPP_OPTION (pfile, pending),
+ arg, cpp_assert);
+ break;
+ case OPT_U:
+ new_pending_directive (CPP_OPTION (pfile, pending), arg, cpp_undef);
+ break;
+ case OPT_I: /* Add directory to path for includes. */
+ if (!strcmp (arg, "-"))
+ {
+ /* -I- means:
+ Use the preceding -I directories for #include "..."
+ but not #include <...>.
+ Don't search the directory of the present file
+ for #include "...". (Note that -I. -I- is not the same as
+ the default setup; -I. uses the compiler's working dir.) */
+ if (! CPP_OPTION (pfile, ignore_srcdir))
+ {
+ struct cpp_pending *pend = CPP_OPTION (pfile, pending);
+ pend->quote_head = pend->brack_head;
+ pend->quote_tail = pend->brack_tail;
+ pend->brack_head = 0;
+ pend->brack_tail = 0;
+ CPP_OPTION (pfile, ignore_srcdir) = 1;
+ }
+ else
+ {
+ cpp_fatal (pfile, "-I- specified twice");
+ return argc;
+ }
+ }
+ else
+ append_include_chain (pfile, CPP_OPTION (pfile, pending),
+ xstrdup (arg), BRACKET, 0);
+ break;
+ case OPT_isystem:
+ /* Add directory to beginning of system include path, as a system
+ include directory. */
+ append_include_chain (pfile, CPP_OPTION (pfile, pending),
+ xstrdup (arg), SYSTEM, 0);
+ break;
+ case OPT_include:
+ {
+ struct pending_option *o = (struct pending_option *)
+ xmalloc (sizeof (struct pending_option));
+ o->arg = arg;
+
+ /* This list has to be built in reverse order so that
+ when cpp_start_read pushes all the -include files onto
+ the buffer stack, they will be scanned in forward order. */
+ o->next = CPP_OPTION (pfile, pending)->include_head;
+ CPP_OPTION (pfile, pending)->include_head = o;
+ }
+ break;
+ case OPT_imacros:
+ {
+ struct pending_option *o = (struct pending_option *)
+ xmalloc (sizeof (struct pending_option));
+ o->arg = arg;
+ o->next = NULL;
+
+ APPEND (CPP_OPTION (pfile, pending), imacros, o);
+ }
+ break;
+ case OPT_iwithprefix:
+ /* Add directory to end of path for includes,
+ with the default prefix at the front of its name. */
+ /* fall through */
+ case OPT_iwithprefixbefore:
+ /* Add directory to main path for includes,
+ with the default prefix at the front of its name. */
+ {
+ char *fname;
+ int len;
+
+ len = strlen (arg);
+
+ if (CPP_OPTION (pfile, include_prefix) != 0)
+ {
+ size_t ipl = CPP_OPTION (pfile, include_prefix_len);
+ fname = xmalloc (ipl + len + 1);
+ memcpy (fname, CPP_OPTION (pfile, include_prefix), ipl);
+ memcpy (fname + ipl, arg, len + 1);
+ }
+ else
+ {
+ fname = xmalloc (sizeof GCC_INCLUDE_DIR - 8 + len);
+ memcpy (fname, GCC_INCLUDE_DIR, sizeof GCC_INCLUDE_DIR - 9);
+ memcpy (fname + sizeof GCC_INCLUDE_DIR - 9, arg, len + 1);
+ }
+
+ append_include_chain (pfile, CPP_OPTION (pfile, pending), fname,
+ opt_code == OPT_iwithprefix ? SYSTEM: BRACKET, 0);
+ }
+ break;
+ case OPT_idirafter:
+ /* Add directory to end of path for includes. */
+ append_include_chain (pfile, CPP_OPTION (pfile, pending),
+ xstrdup (arg), AFTER, 0);
+ break;
+ case OPT_W:
+ /* Silently ignore unrecognised options */
+ if (!strcmp (argv[i], "-Wall"))
+ {
+ CPP_OPTION (pfile, warn_trigraphs) = 1;
+ CPP_OPTION (pfile, warn_comments) = 1;
+ }
+ else if (!strcmp (argv[i], "-Wtraditional"))
+ CPP_OPTION (pfile, warn_traditional) = 1;
+ else if (!strcmp (argv[i], "-Wtrigraphs"))
+ CPP_OPTION (pfile, warn_trigraphs) = 1;
+ else if (!strcmp (argv[i], "-Wcomment"))
+ CPP_OPTION (pfile, warn_comments) = 1;
+ else if (!strcmp (argv[i], "-Wcomments"))
+ CPP_OPTION (pfile, warn_comments) = 1;
+ else if (!strcmp (argv[i], "-Wundef"))
+ CPP_OPTION (pfile, warn_undef) = 1;
+ else if (!strcmp (argv[i], "-Wimport"))
+ CPP_OPTION (pfile, warn_import) = 1;
+ else if (!strcmp (argv[i], "-Werror"))
+ CPP_OPTION (pfile, warnings_are_errors) = 1;
+ else if (!strcmp (argv[i], "-Wno-traditional"))
+ CPP_OPTION (pfile, warn_traditional) = 0;
+ else if (!strcmp (argv[i], "-Wno-trigraphs"))
+ CPP_OPTION (pfile, warn_trigraphs) = 0;
+ else if (!strcmp (argv[i], "-Wno-comment"))
+ CPP_OPTION (pfile, warn_comments) = 0;
+ else if (!strcmp (argv[i], "-Wno-comments"))
+ CPP_OPTION (pfile, warn_comments) = 0;
+ else if (!strcmp (argv[i], "-Wno-undef"))
+ CPP_OPTION (pfile, warn_undef) = 0;
+ else if (!strcmp (argv[i], "-Wno-import"))
+ CPP_OPTION (pfile, warn_import) = 0;
+ else if (!strcmp (argv[i], "-Wno-error"))
+ CPP_OPTION (pfile, warnings_are_errors) = 0;
+ break;
+ }
+ }
+ return i + 1;
+}
+
+#ifdef HOST_EBCDIC
+static int
+opt_comp (const void *p1, const void *p2)
+{
+ return strcmp (((struct cl_option *)p1)->opt_text,
+ ((struct cl_option *)p2)->opt_text);
+}
+#endif
+
+/* Handle command-line options in (argc, argv).
+ Can be called multiple times, to handle multiple sets of options.
+ Returns if an unrecognized option is seen.
+ Returns number of strings consumed. */
+int
+cpp_handle_options (pfile, argc, argv)
+ cpp_reader *pfile;
+ int argc;
+ char **argv;
+{
+ int i;
+ int strings_processed;
+
+#ifdef HOST_EBCDIC
+ static int opts_sorted = 0;
+
+ if (!opts_sorted)
+ {
+ opts_sorted = 1;
+ /* For non-ASCII hosts, the array needs to be sorted at runtime */
+ qsort (cl_options, N_OPTS, sizeof (struct cl_option), opt_comp);
+ }
+#endif
+
+ for (i = 0; i < argc; i += strings_processed)
+ {
+ strings_processed = handle_option (pfile, argc - i, argv + i);
+ if (strings_processed == 0)
+ break;
+ }
+ return i;
+}
+
+static void
+print_help ()
+{
+ fprintf (stderr, _("Usage: %s [switches] input output\n"), progname);
+ fputs (_("\
+Switches:\n\
+ -include <file> Include the contents of <file> before other files\n\
+ -imacros <file> Accept definition of macros in <file>\n\
+ -iprefix <path> Specify <path> as a prefix for next two options\n\
+ -iwithprefix <dir> Add <dir> to the end of the system include path\n\
+ -iwithprefixbefore <dir> Add <dir> to the end of the main include path\n\
+ -isystem <dir> Add <dir> to the start of the system include path\n\
+ -idirafter <dir> Add <dir> to the end of the system include path\n\
+ -I <dir> Add <dir> to the end of the main include path\n\
+ -I- Fine-grained include path control; see info docs\n\
+ -nostdinc Do not search system include directories\n\
+ (dirs specified with -isystem will still be used)\n\
+ -nostdinc++ Do not search system include directories for C++\n\
+ -o <file> Put output into <file>\n\
+ -pedantic Issue all warnings demanded by strict ANSI C\n\
+ -pedantic-errors Issue -pedantic warnings as errors instead\n\
+ -traditional Follow K&R pre-processor behaviour\n\
+ -trigraphs Support ANSI C trigraphs\n\
+ -lang-c Assume that the input sources are in C\n\
+ -lang-c89 Assume that the input sources are in C89\n\
+ -lang-c++ Assume that the input sources are in C++\n\
+ -lang-objc Assume that the input sources are in ObjectiveC\n\
+ -lang-objc++ Assume that the input sources are in ObjectiveC++\n\
+ -lang-asm Assume that the input sources are in assembler\n\
+ -lang-fortran Assume that the input sources are in Fortran\n\
+ -lang-chill Assume that the input sources are in Chill\n\
+ -std=<std name> Specify the conformance standard; one of:\n\
+ gnu89, gnu99, c89, c99, iso9899:1990,\n\
+ iso9899:199409, iso9899:1999\n\
+ -+ Allow parsing of C++ style features\n\
+ -w Inhibit warning messages\n\
+ -Wtrigraphs Warn if trigraphs are encountered\n\
+ -Wno-trigraphs Do not warn about trigraphs\n\
+ -Wcomment{s} Warn if one comment starts inside another\n\
+ -Wno-comment{s} Do not warn about comments\n\
+ -Wtraditional Warn if a macro argument is/would be turned into\n\
+ a string if -traditional is specified\n\
+ -Wno-traditional Do not warn about stringification\n\
+ -Wundef Warn if an undefined macro is used by #if\n\
+ -Wno-undef Do not warn about testing undefined macros\n\
+ -Wimport Warn about the use of the #import directive\n\
+ -Wno-import Do not warn about the use of #import\n\
+ -Werror Treat all warnings as errors\n\
+ -Wno-error Do not treat warnings as errors\n\
+ -Wall Enable all preprocessor warnings\n\
+ -M Generate make dependencies\n\
+ -MM As -M, but ignore system header files\n\
+ -MD As -M, but put output in a .d file\n\
+ -MMD As -MD, but ignore system header files\n\
+ -MG Treat missing header file as generated files\n\
+ -g3 Include #define and #undef directives in the output\n\
+ -D<macro> Define a <macro> with string '1' as its value\n\
+ -D<macro>=<val> Define a <macro> with <val> as its value\n\
+ -A<question> (<answer>) Assert the <answer> to <question>\n\
+ -A-<question> (<answer>) Disable the <answer> to <question>\n\
+ -U<macro> Undefine <macro> \n\
+ -v Display the version number\n\
+ -H Print the name of header files as they are used\n\
+ -C Do not discard comments\n\
+ -dM Display a list of macro definitions active at end\n\
+ -dD Preserve macro definitions in output\n\
+ -dN As -dD except that only the names are preserved\n\
+ -dI Include #include directives in the output\n\
+ -P Do not generate #line directives\n\
+ -$ Do not allow '$' in identifiers\n\
+ -remap Remap file names when including files.\n\
+ --version Display version information\n\
+ -h or --help Display this information\n\
+"), stdout);
}
projects / gcc.git / blobdiff