X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ftlink.c;h=de82e240cc859e605eca9ef8213ecc541fa84948;hb=5fd0f19b793f1e60a0d310d6f07ceff2e8eaa7ed;hp=555deb65b032fe8d935b23e3b9ef4ab73133e8bb;hpb=4059f3f07eeff2836425ec5cbda03d5eb48193c9;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/tlink.c b/gcc/tlink.c index 555deb65b03..de82e240cc8 100644 --- a/gcc/tlink.c +++ b/gcc/tlink.c @@ -1,7 +1,8 @@ /* Scan linker error messages for missing template instantiations and provide them. - Copyright (C) 1995, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 1995, 1998, 1999, 2000, 2001, 2003, 2004 + Free Software Foundation, Inc. Contributed by Jason Merrill (jason@cygnus.com). This file is part of GCC. @@ -23,6 +24,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "config.h" #include "system.h" +#include "coretypes.h" +#include "tm.h" #include "intl.h" #include "obstack.h" #include "hashtab.h" @@ -35,6 +38,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA extern int prepends_underscore; static int tlink_verbose; + +static char initial_cwd[MAXPATHLEN + 1]; /* Hash table boilerplate for working with htab_t. We have hash tables for symbol names, file names, and demangled symbols. */ @@ -65,62 +70,55 @@ typedef struct demangled_hash_entry /* Hash and comparison functions for these hash tables. */ -static int hash_string_eq PARAMS ((const void *, const void *)); -static hashval_t hash_string_hash PARAMS ((const void *)); +static int hash_string_eq (const void *, const void *); +static hashval_t hash_string_hash (const void *); static int -hash_string_eq (s1_p, s2_p) - const void *s1_p; - const void *s2_p; +hash_string_eq (const void *s1_p, const void *s2_p) { - const char *const *s1 = (const char *const *)s1_p; - const char *s2 = (const char *)s2_p; + const char *const *s1 = (const char *const *) s1_p; + const char *s2 = (const char *) s2_p; return strcmp (*s1, s2) == 0; } static hashval_t -hash_string_hash (s_p) - const void *s_p; +hash_string_hash (const void *s_p) { - const char *const *s = (const char *const *)s_p; + const char *const *s = (const char *const *) s_p; return (*htab_hash_string) (*s); } static htab_t symbol_table; -static struct symbol_hash_entry * symbol_hash_lookup PARAMS ((const char *, - int)); -static struct file_hash_entry * file_hash_lookup PARAMS ((const char *)); -static struct demangled_hash_entry * - demangled_hash_lookup PARAMS ((const char *, int)); -static void symbol_push PARAMS ((symbol *)); -static symbol * symbol_pop PARAMS ((void)); -static void file_push PARAMS ((file *)); -static file * file_pop PARAMS ((void)); -static void tlink_init PARAMS ((void)); -static int tlink_execute PARAMS ((const char *, char **, const char *)); -static char * frob_extension PARAMS ((const char *, const char *)); -static char * obstack_fgets PARAMS ((FILE *, struct obstack *)); -static char * tfgets PARAMS ((FILE *)); -static char * pfgets PARAMS ((FILE *)); -static void freadsym PARAMS ((FILE *, file *, int)); -static void read_repo_file PARAMS ((file *)); -static void maybe_tweak PARAMS ((char *, file *)); -static int recompile_files PARAMS ((void)); -static int read_repo_files PARAMS ((char **)); -static void demangle_new_symbols PARAMS ((void)); -static int scan_linker_output PARAMS ((const char *)); +static struct symbol_hash_entry * symbol_hash_lookup (const char *, int); +static struct file_hash_entry * file_hash_lookup (const char *); +static struct demangled_hash_entry *demangled_hash_lookup (const char *, int); +static void symbol_push (symbol *); +static symbol * symbol_pop (void); +static void file_push (file *); +static file * file_pop (void); +static void tlink_init (void); +static int tlink_execute (const char *, char **, const char *); +static char * frob_extension (const char *, const char *); +static char * obstack_fgets (FILE *, struct obstack *); +static char * tfgets (FILE *); +static char * pfgets (FILE *); +static void freadsym (FILE *, file *, int); +static void read_repo_file (file *); +static void maybe_tweak (char *, file *); +static int recompile_files (void); +static int read_repo_files (char **); +static void demangle_new_symbols (void); +static int scan_linker_output (const char *); /* Look up an entry in the symbol hash table. */ static struct symbol_hash_entry * -symbol_hash_lookup (string, create) - const char *string; - int create; +symbol_hash_lookup (const char *string, int create) { - PTR *e; + void **e; e = htab_find_slot_with_hash (symbol_table, string, - (*htab_hash_string)(string), + (*htab_hash_string) (string), create ? INSERT : NO_INSERT); if (e == NULL) return NULL; @@ -138,12 +136,11 @@ static htab_t file_table; /* Look up an entry in the file hash table. */ static struct file_hash_entry * -file_hash_lookup (string) - const char *string; +file_hash_lookup (const char *string) { - PTR *e; + void **e; e = htab_find_slot_with_hash (file_table, string, - (*htab_hash_string)(string), + (*htab_hash_string) (string), INSERT); if (*e == NULL) { @@ -159,13 +156,11 @@ static htab_t demangled_table; /* Look up an entry in the demangled name hash table. */ static struct demangled_hash_entry * -demangled_hash_lookup (string, create) - const char *string; - int create; +demangled_hash_lookup (const char *string, int create) { - PTR *e; + void **e; e = htab_find_slot_with_hash (demangled_table, string, - (*htab_hash_string)(string), + (*htab_hash_string) (string), create ? INSERT : NO_INSERT); if (e == NULL) return NULL; @@ -197,10 +192,9 @@ struct obstack file_stack_obstack; struct file_stack_entry *file_stack; static void -symbol_push (p) - symbol *p; +symbol_push (symbol *p) { - struct symbol_stack_entry *ep = (struct symbol_stack_entry *) obstack_alloc + struct symbol_stack_entry *ep = obstack_alloc (&symbol_stack_obstack, sizeof (struct symbol_stack_entry)); ep->value = p; ep->next = symbol_stack; @@ -208,7 +202,7 @@ symbol_push (p) } static symbol * -symbol_pop () +symbol_pop (void) { struct symbol_stack_entry *ep = symbol_stack; symbol *p; @@ -221,15 +215,14 @@ symbol_pop () } static void -file_push (p) - file *p; +file_push (file *p) { struct file_stack_entry *ep; if (p->tweaking) return; - ep = (struct file_stack_entry *) obstack_alloc + ep = obstack_alloc (&file_stack_obstack, sizeof (struct file_stack_entry)); ep->value = p; ep->next = file_stack; @@ -238,7 +231,7 @@ file_push (p) } static file * -file_pop () +file_pop (void) { struct file_stack_entry *ep = file_stack; file *p; @@ -256,7 +249,7 @@ file_pop () /* Initialize the tlink machinery. Called from do_tlink. */ static void -tlink_init () +tlink_init (void) { const char *p; @@ -266,7 +259,7 @@ tlink_init () NULL); demangled_table = htab_create (500, hash_string_hash, hash_string_eq, NULL); - + obstack_begin (&symbol_stack_obstack, 0); obstack_begin (&file_stack_obstack, 0); @@ -281,22 +274,19 @@ tlink_init () if (debug) tlink_verbose = 3; } + + getcwd (initial_cwd, sizeof (initial_cwd)); } static int -tlink_execute (prog, argv, redir) - const char *prog; - char **argv; - const char *redir; +tlink_execute (const char *prog, char **argv, const char *redir) { collect_execute (prog, argv, redir); return collect_wait (prog); } static char * -frob_extension (s, ext) - const char *s; - const char *ext; +frob_extension (const char *s, const char *ext) { const char *p = strrchr (s, '/'); if (! p) @@ -310,9 +300,7 @@ frob_extension (s, ext) } static char * -obstack_fgets (stream, ob) - FILE *stream; - struct obstack *ob; +obstack_fgets (FILE *stream, struct obstack *ob) { int c; while ((c = getc (stream)) != EOF && c != '\n') @@ -324,32 +312,27 @@ obstack_fgets (stream, ob) } static char * -tfgets (stream) - FILE *stream; +tfgets (FILE *stream) { return obstack_fgets (stream, &temporary_obstack); } static char * -pfgets (stream) - FILE *stream; +pfgets (FILE *stream) { - return obstack_fgets (stream, &permanent_obstack); + return xstrdup (tfgets (stream)); } /* Real tlink code. */ /* Subroutine of read_repo_file. We are reading the repo file for file F, which is coming in on STREAM, and the symbol that comes next in STREAM - is offerred, chosen or provided if CHOSEN is 0, 1 or 2, respectively. + is offered, chosen or provided if CHOSEN is 0, 1 or 2, respectively. XXX "provided" is unimplemented, both here and in the compiler. */ static void -freadsym (stream, f, chosen) - FILE *stream; - file *f; - int chosen; +freadsym (FILE *stream, file *f, int chosen) { symbol *sym; @@ -389,8 +372,7 @@ freadsym (stream, f, chosen) /* Read in the repo file denoted by F, and record all its information. */ static void -read_repo_file (f) - file *f; +read_repo_file (file *f) { char c; FILE *stream = fopen (f->key, "r"); @@ -436,9 +418,7 @@ read_repo_file (f) this one wants to emit it as well. */ static void -maybe_tweak (line, f) - char *line; - file *f; +maybe_tweak (char *line, file *f) { symbol *sym = symbol_hash_lookup (line + 2, false); @@ -456,21 +436,22 @@ maybe_tweak (line, f) } /* Update the repo files for each of the object files we have adjusted and - recompile. - - XXX Should this use collect_execute instead of system? */ + recompile. */ static int -recompile_files () +recompile_files (void) { file *f; - putenv (xstrdup ("COMPILER_PATH")); - putenv (xstrdup ("LIBRARY_PATH")); + putenv (xstrdup ("COMPILER_PATH=")); + putenv (xstrdup ("LIBRARY_PATH=")); while ((f = file_pop ()) != NULL) { - char *line, *command; + char *line; + const char *p, *q; + char **argv; + struct obstack arg_stack; FILE *stream = fopen (f->key, "r"); const char *const outname = frob_extension (f->key, ".rnw"); FILE *output = fopen (outname, "w"); @@ -489,25 +470,68 @@ recompile_files () fclose (output); rename (outname, f->key); - obstack_grow (&temporary_obstack, "cd ", 3); - obstack_grow (&temporary_obstack, f->dir, strlen (f->dir)); - obstack_grow (&temporary_obstack, "; ", 2); - obstack_grow (&temporary_obstack, c_file_name, strlen (c_file_name)); - obstack_1grow (&temporary_obstack, ' '); - obstack_grow (&temporary_obstack, f->args, strlen (f->args)); - obstack_1grow (&temporary_obstack, ' '); - command = obstack_copy0 (&temporary_obstack, f->main, strlen (f->main)); + if (!f->args) + { + error ("repository file `%s' does not contain command-line " + "arguments", f->key); + return 0; + } + + /* Build a null-terminated argv array suitable for + tlink_execute(). Manipulate arguments on the arg_stack while + building argv on the temporary_obstack. */ + + obstack_init (&arg_stack); + obstack_ptr_grow (&temporary_obstack, c_file_name); + + for (p = f->args; *p != '\0'; p = q + 1) + { + /* Arguments are delimited by single-quotes. Find the + opening quote. */ + p = strchr (p, '\''); + if (!p) + goto done; + + /* Find the closing quote. */ + q = strchr (p + 1, '\''); + if (!q) + goto done; + + obstack_grow (&arg_stack, p + 1, q - (p + 1)); + + /* Replace '\'' with '. This is how set_collect_gcc_options + encodes a single-quote. */ + while (q[1] == '\\' && q[2] == '\'' && q[3] == '\'') + { + const char *r; + + r = strchr (q + 4, '\''); + if (!r) + goto done; + + obstack_grow (&arg_stack, q + 3, r - (q + 3)); + q = r; + } + + obstack_1grow (&arg_stack, '\0'); + obstack_ptr_grow (&temporary_obstack, obstack_finish (&arg_stack)); + } + done: + obstack_ptr_grow (&temporary_obstack, f->main); + obstack_ptr_grow (&temporary_obstack, NULL); + argv = obstack_finish (&temporary_obstack); if (tlink_verbose) fprintf (stderr, _("collect: recompiling %s\n"), f->main); - if (tlink_verbose >= 3) - fprintf (stderr, "%s\n", command); - if (system (command) != 0) + if (chdir (f->dir) != 0 + || tlink_execute (c_file_name, argv, NULL) != 0 + || chdir (initial_cwd) != 0) return 0; read_repo_file (f); + obstack_free (&arg_stack, NULL); obstack_free (&temporary_obstack, temporary_firstobj); } return 1; @@ -517,8 +541,7 @@ recompile_files () .rpo files associated with them, and read in the information. */ static int -read_repo_files (object_lst) - char **object_lst; +read_repo_files (char **object_lst) { char **object = object_lst; @@ -550,7 +573,7 @@ read_repo_files (object_lst) /* Add the demangled forms of any new symbols to the hash table. */ static void -demangle_new_symbols () +demangle_new_symbols (void) { symbol *sym; @@ -571,8 +594,7 @@ demangle_new_symbols () adjust the settings for each symbol encountered. */ static int -scan_linker_output (fname) - const char *fname; +scan_linker_output (const char *fname) { FILE *stream = fopen (fname, "r"); char *line; @@ -583,20 +605,20 @@ scan_linker_output (fname) symbol *sym; int end; - while (*p && ISSPACE ((unsigned char)*p)) + while (*p && ISSPACE ((unsigned char) *p)) ++p; if (! *p) continue; - for (q = p; *q && ! ISSPACE ((unsigned char)*q); ++q) + for (q = p; *q && ! ISSPACE ((unsigned char) *q); ++q) ; /* Try the first word on the line. */ if (*p == '.') ++p; - if (*p == '_' && prepends_underscore) - ++p; + if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX))) + p += strlen (USER_LABEL_PREFIX); end = ! *q; *q = 0; @@ -605,21 +627,21 @@ scan_linker_output (fname) /* Some SVR4 linkers produce messages like ld: 0711-317 ERROR: Undefined symbol: .g__t3foo1Zi */ - if (! sym && ! end && strstr (q+1, "Undefined symbol: ")) + if (! sym && ! end && strstr (q + 1, "Undefined symbol: ")) { - char *p = strrchr (q+1, ' '); + char *p = strrchr (q + 1, ' '); p++; if (*p == '.') p++; - if (*p == '_' && prepends_underscore) - p++; + if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX))) + p += strlen (USER_LABEL_PREFIX); sym = symbol_hash_lookup (p, false); } if (! sym && ! end) /* Try a mangled name in quotes. */ { - const char *oldq = q+1; + const char *oldq = q + 1; demangled *dem = 0; q = 0; @@ -630,11 +652,23 @@ scan_linker_output (fname) /* Then try "double quotes". */ else if (p = strchr (oldq, '"'), p) p++, q = strchr (p, '"'); + else { + /* Then try entire line. */ + q = strchr (oldq, 0); + if (q != oldq) + p = (char *)oldq; + } - /* Don't let the strstr's below see the demangled name; we - might get spurious matches. */ if (p) - p[-1] = '\0'; + { + /* Don't let the strstr's below see the demangled name; we + might get spurious matches. */ + p[-1] = '\0'; + + /* powerpc64-linux references .foo when calling function foo. */ + if (*p == '.') + p++; + } /* We need to check for certain error keywords here, or we would mistakenly use GNU ld's "In function `foo':" message. */ @@ -649,8 +683,9 @@ scan_linker_output (fname) sym = symbol_hash_lookup (dem->mangled, false); else { - if (*p == '_' && prepends_underscore) - ++p; + if (!strncmp (p, USER_LABEL_PREFIX, + strlen (USER_LABEL_PREFIX))) + p += strlen (USER_LABEL_PREFIX); sym = symbol_hash_lookup (p, false); } } @@ -658,6 +693,9 @@ scan_linker_output (fname) if (sym && sym->tweaked) { + error ("`%s' was assigned to `%s', but was not defined " + "during recompilation, or vice versa", + sym->key, sym->file->key); fclose (stream); return 0; } @@ -687,8 +725,7 @@ scan_linker_output (fname) to provide missing definitions. Currently ignored. */ void -do_tlink (ld_argv, object_lst) - char **ld_argv, **object_lst ATTRIBUTE_UNUSED; +do_tlink (char **ld_argv, char **object_lst ATTRIBUTE_UNUSED) { int exit = tlink_execute ("ld", ld_argv, ldout);