-/* Collect static initialization info into data structures
- that can be traversed by C++ initialization and finalization
- routines.
-
- Copyright (C) 1992 Free Software Foundation, Inc.
+/* Collect static initialization info into data structures that can be
+ traversed by C++ initialization and finalization routines.
+ Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
Contributed by Chris Smith (csmith@convex.com).
- Heavily modified by Michael Meissner (meissner@osf.org),
+ Heavily modified by Michael Meissner (meissner@cygnus.com),
Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
This file is part of GNU CC.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-/* Build tables of static constructors and destructors and run ld. */
+/* Build tables of static constructors and destructors and run ld. */
+#include "config.h"
#include <sys/types.h>
#include <stdio.h>
-#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <signal.h>
#include <sys/file.h>
#include <sys/stat.h>
-#ifdef NO_WAIT_H
-#include <sys/wait.h>
-#endif
-
-#ifndef errno
-extern int errno;
-#endif
#define COLLECT
-#include "config.h"
+#include "demangle.h"
+#include "obstack.h"
+#include "gansidecl.h"
-#ifndef __STDC__
-#define generic char
-#define const
+#ifndef errno
+extern int errno;
+#endif
+#ifndef HAVE_STRERROR
+#if defined(bsd4_4)
+extern const char *const sys_errlist[];
+#else
+extern char *sys_errlist[];
+#endif
+extern int sys_nerr;
#else
-#define generic void
+char *strerror();
#endif
+/* Obstack allocation and deallocation routines. */
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free free
+
#ifdef USG
#define vfork fork
#endif
#define X_OK 1
#endif
-/* On MSDOS, write temp files in current dir
- because there's no place else we can expect to use. */
-#if __MSDOS__
-#ifndef P_tmpdir
-#define P_tmpdir "./"
+#ifndef WIFSIGNALED
+#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
+#endif
+#ifndef WTERMSIG
+#define WTERMSIG(S) ((S) & 0x7f)
#endif
+#ifndef WIFEXITED
+#define WIFEXITED(S) (((S) & 0xff) == 0)
#endif
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
+#endif
+
+extern char *choose_temp_base ();
\f
/* On certain systems, we have code that works by scanning the object file
directly. But this code uses system-specific header files and library
- functions, so turn it off in a cross-compiler. */
+ functions, so turn it off in a cross-compiler. Likewise, the names of
+ the utilities aren't correct for a cross-compiler; we have to hope that
+ cross-versions are in the proper directories. */
#ifdef CROSS_COMPILE
+#undef SUNOS4_SHARED_LIBRARIES
#undef OBJECT_FORMAT_COFF
#undef OBJECT_FORMAT_ROSE
+#undef MD_EXEC_PREFIX
+#undef REAL_LD_FILE_NAME
+#undef REAL_NM_FILE_NAME
+#undef REAL_STRIP_FILE_NAME
#endif
/* If we can't use a special method, use the ordinary one:
#include <sgs.h>
#endif
-#ifdef _AIX
-#define ISCOFF(magic) \
- ((magic) == U802WRMAGIC || (magic) == U802ROMAGIC || (magic) == U802TOCMAGIC)
-#endif
-
-#if defined (_AIX) || defined (USG)
+/* Many versions of ldfcn.h define these. */
+#ifdef FREAD
#undef FREAD
#undef FWRITE
#endif
#include <ldfcn.h>
+/* Some systems have an ISCOFF macro, but others do not. In some cases
+ the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines
+ that either do not have an ISCOFF macro in /usr/include or for those
+ where it is wrong. */
+
+#ifndef MY_ISCOFF
+#define MY_ISCOFF(X) ISCOFF (X)
+#endif
+
+#ifdef XCOFF_DEBUGGING_INFO
+#define XCOFF_SCAN_LIBS
+#endif
+
#endif /* OBJECT_FORMAT_COFF */
#ifdef OBJECT_FORMAT_ROSE
#endif
#endif /* OBJECT_FORMAT_NONE */
+
+/* Some systems use __main in a way incompatible with its use in gcc, in these
+ cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
+ give the same symbol without quotes for an alternative entry point. You
+ must define both, or neither. */
+#ifndef NAME__MAIN
+#define NAME__MAIN "__main"
+#define SYMBOL__MAIN __main
+#endif
+
+#if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES || defined(XCOFF_SCAN_LIBS)
+#define SCAN_LIBRARIES
+#endif
+
+#ifdef USE_COLLECT2
+int do_collecting = 1;
+#else
+int do_collecting = 0;
+#endif
\f
-/* Linked lists of constructor and destructor names. */
+/* Linked lists of constructor and destructor names. */
struct id
{
enum pass {
PASS_FIRST, /* without constructors */
+ PASS_OBJ, /* individual objects */
+ PASS_LIB, /* looking for shared libraries */
PASS_SECOND /* with constructors linked in */
};
#ifndef NO_SYS_SIGLIST
+#ifndef DONT_DECLARE_SYS_SIGLIST
extern char *sys_siglist[];
#endif
+#endif
extern char *version_string;
-static int vflag; /* true if -v */
+int vflag; /* true if -v */
static int rflag; /* true if -r */
static int strip_flag; /* true if -s */
-static int debug; /* true if -debug */
+int debug; /* true if -debug */
+
+static int shared_obj; /* true if -shared */
static int temp_filename_length; /* Length of temp_filename */
static char *temp_filename; /* Base of temp filenames */
-static char *c_file; /* <xxx>.c for constructor/destructor list. */
-static char *o_file; /* <xxx>.o for constructor/destructor list. */
+static char *c_file; /* <xxx>.c for constructor/destructor list. */
+static char *o_file; /* <xxx>.o for constructor/destructor list. */
+static char *export_file; /* <xxx>.x for AIX export list. */
+char *ldout; /* File for ld errors. */
+static char *output_file; /* Output file for ld. */
static char *nm_file_name; /* pathname of nm */
+static char *ldd_file_name; /* pathname of ldd (or equivalent) */
static char *strip_file_name; /* pathname of strip */
+char *c_file_name; /* pathname of gcc */
+static char *initname, *fininame; /* names of init and fini funcs */
static struct head constructors; /* list of constructors found */
static struct head destructors; /* list of destructors found */
+static struct head exports; /* list of exported symbols */
+
+struct obstack temporary_obstack;
+struct obstack permanent_obstack;
+char * temporary_firstobj;
+
+/* Defined in the automatically-generated underscore.c. */
+extern int prepends_underscore;
extern char *getenv ();
extern char *mktemp ();
-static void add_to_list ();
-static void scan_prog_file ();
-static void fork_execute ();
-static void do_wait ();
-static void write_c_file ();
-static void my_exit ();
-static void handler ();
-static void maybe_unlink ();
-static void choose_temp_base ();
-
-generic *xcalloc ();
-generic *xmalloc ();
+extern FILE *fdopen ();
+
+/* Structure to hold all the directories in which to search for files to
+ execute. */
+
+struct prefix_list
+{
+ char *prefix; /* String to prepend to the path. */
+ struct prefix_list *next; /* Next in linked list. */
+};
+
+struct path_prefix
+{
+ struct prefix_list *plist; /* List of prefixes to try */
+ int max_len; /* Max length of a prefix in PLIST */
+ char *name; /* Name of this list (used in config stuff) */
+};
+
+void collect_exit PROTO((int));
+void collect_execute PROTO((char *, char **, char *));
+void dump_file PROTO((char *));
+static void handler PROTO((int));
+static int is_ctor_dtor PROTO((char *));
+static int is_in_prefix_list PROTO((struct path_prefix *, char *, int));
+static char *find_a_file PROTO((struct path_prefix *, char *));
+static void add_prefix PROTO((struct path_prefix *, char *));
+static void prefix_from_env PROTO((char *, struct path_prefix *));
+static void prefix_from_string PROTO((char *, struct path_prefix *));
+static void do_wait PROTO((char *));
+static void fork_execute PROTO((char *, char **));
+static void maybe_unlink PROTO((char *));
+static void add_to_list PROTO((struct head *, char *));
+static void write_list PROTO((FILE *, char *, struct id *));
+static void write_list_with_asm PROTO((FILE *, char *, struct id *));
+static void write_c_file PROTO((FILE *, char *));
+static void write_export_file PROTO((FILE *));
+static void scan_prog_file PROTO((char *, enum pass));
+static void scan_libraries PROTO((char *));
+
+char *xcalloc ();
+char *xmalloc ();
+
+extern char *index ();
+extern char *rindex ();
+extern void free ();
\f
+#ifdef NO_DUP2
+int
+dup2 (oldfd, newfd)
+ int oldfd;
+ int newfd;
+{
+ int fdtmp[256];
+ int fdx = 0;
+ int fd;
+
+ if (oldfd == newfd)
+ return oldfd;
+ close (newfd);
+ while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
+ fdtmp[fdx++] = fd;
+ while (fdx > 0)
+ close (fdtmp[--fdx]);
+
+ return fd;
+}
+#endif
+
char *
my_strerror (e)
int e;
{
- extern char *sys_errlist[];
- extern int sys_nerr;
- static char buffer[30];
+#ifdef HAVE_STRERROR
+ return strerror (e);
+
+#else
+
+ static char buffer[30];
if (!e)
return "";
sprintf (buffer, "Unknown error %d", e);
return buffer;
+#endif
}
\f
/* Delete tempfiles and exit function. */
-static void
-my_exit (status)
+void
+collect_exit (status)
int status;
{
if (c_file != 0 && c_file[0])
if (o_file != 0 && o_file[0])
maybe_unlink (o_file);
+ if (export_file != 0 && export_file[0])
+ maybe_unlink (export_file);
+
+ if (ldout != 0 && ldout[0])
+ {
+ dump_file (ldout);
+ maybe_unlink (ldout);
+ }
+
+ if (status != 0 && output_file != 0 && output_file[0])
+ maybe_unlink (output_file);
+
exit (status);
}
\f
-/* Die when sys call fails. */
+/* Die when sys call fails. */
-static void
+void
fatal_perror (string, arg1, arg2, arg3)
- char *string;
+ char *string, *arg1, *arg2, *arg3;
{
int e = errno;
- fprintf (stderr, "collect: ");
+ fprintf (stderr, "collect2: ");
fprintf (stderr, string, arg1, arg2, arg3);
fprintf (stderr, ": %s\n", my_strerror (e));
- my_exit (1);
+ collect_exit (FATAL_EXIT_CODE);
}
-/* Just die. */
+/* Just die. */
-static void
+void
fatal (string, arg1, arg2, arg3)
- char *string;
+ char *string, *arg1, *arg2, *arg3;
{
- fprintf (stderr, "collect: ");
+ fprintf (stderr, "collect2: ");
fprintf (stderr, string, arg1, arg2, arg3);
fprintf (stderr, "\n");
- my_exit (1);
+ collect_exit (FATAL_EXIT_CODE);
}
/* Write error message. */
-static void
+void
error (string, arg1, arg2, arg3, arg4)
- char *string;
+ char *string, *arg1, *arg2, *arg3, *arg4;
{
- fprintf (stderr, "collect: ");
+ fprintf (stderr, "collect2: ");
fprintf (stderr, string, arg1, arg2, arg3, arg4);
fprintf (stderr, "\n");
}
handler (signo)
int signo;
{
- if (c_file[0])
+ if (c_file != 0 && c_file[0])
maybe_unlink (c_file);
- if (o_file[0])
+ if (o_file != 0 && o_file[0])
maybe_unlink (o_file);
+ if (ldout != 0 && ldout[0])
+ maybe_unlink (ldout);
+
+ if (export_file != 0 && export_file[0])
+ maybe_unlink (export_file);
+
signal (signo, SIG_DFL);
kill (getpid (), signo);
}
\f
-generic *
+char *
xcalloc (size1, size2)
int size1, size2;
{
- generic *ptr = (generic *) calloc (size1, size2);
+ char *ptr = (char *) calloc (size1, size2);
if (ptr)
return ptr;
fatal ("out of memory");
- return (generic *)0;
+ return (char *) 0;
}
-generic *
+char *
xmalloc (size)
- int size;
+ unsigned size;
{
- generic *ptr = (generic *) malloc (size);
+ char *ptr = (char *) malloc (size);
if (ptr)
return ptr;
fatal ("out of memory");
- return (generic *)0;
+ return (char *) 0;
+}
+
+char *
+xrealloc (ptr, size)
+ char *ptr;
+ unsigned size;
+{
+ register char *value = (char *) realloc (ptr, size);
+ if (value == 0)
+ fatal ("virtual memory exhausted");
+ return value;
+}
+
+int
+file_exists (name)
+ char *name;
+{
+ return access (name, R_OK) == 0;
}
/* Make a copy of a string INPUT with size SIZE. */
return output;
}
\f
+void
+dump_file (name)
+ char *name;
+{
+ FILE *stream = fopen (name, "r");
+ int no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
+
+ if (stream == 0)
+ return;
+ while (1)
+ {
+ int c;
+ while (c = getc (stream),
+ c != EOF && (isalnum (c) || c == '_' || c == '$' || c == '.'))
+ obstack_1grow (&temporary_obstack, c);
+ if (obstack_object_size (&temporary_obstack) > 0)
+ {
+ char *word, *p, *result;
+ obstack_1grow (&temporary_obstack, '\0');
+ word = obstack_finish (&temporary_obstack);
+
+ if (*word == '.')
+ ++word, putc ('.', stderr);
+ p = word;
+ if (*p == '_' && prepends_underscore)
+ ++p;
+
+ if (no_demangle)
+ result = 0;
+ else
+ result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI);
+
+ if (result)
+ {
+ int diff;
+ fputs (result, stderr);
+
+ diff = strlen (word) - strlen (result);
+ while (diff > 0)
+ --diff, putc (' ', stderr);
+ while (diff < 0 && c == ' ')
+ ++diff, c = getc (stream);
+
+ free (result);
+ }
+ else
+ fputs (word, stderr);
+
+ fflush (stderr);
+ obstack_free (&temporary_obstack, temporary_firstobj);
+ }
+ if (c == EOF)
+ break;
+ putc (c, stderr);
+ }
+ fclose (stream);
+}
+\f
/* Decide whether the given symbol is:
a constructor (1), a destructor (2), or neither (0). */
static struct names special[] = {
#ifdef NO_DOLLAR_IN_LABEL
+#ifdef NO_DOT_IN_LABEL
+ { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
+ { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
+#else
{ "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
{ "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
+#endif
#else
{ "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
- { "GLOBAL_$D$", sizeof ("GLOBAL_$I$")-1, 2, 0 },
+ { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
#endif
+ { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
+ { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
+#ifdef CFRONT_LOSSAGE /* Don't collect cfront initialization functions.
+ cfront has its own linker procedure to collect them;
+ if collect2 gets them too, they get collected twice
+ when the cfront procedure is run and the compiler used
+ for linking happens to be GCC. */
{ "sti__", sizeof ("sti__")-1, 1, 1 },
{ "std__", sizeof ("std__")-1, 2, 1 },
+#endif /* CFRONT_LOSSAGE */
{ NULL, 0, 0, 0 }
};
}
return 0;
}
+\f
+/* Routine to add variables to the environment. */
+
+#ifndef HAVE_PUTENV
+
+int
+putenv (str)
+ char *str;
+{
+#ifndef VMS /* nor about VMS */
+
+ extern char **environ;
+ char **old_environ = environ;
+ char **envp;
+ int num_envs = 0;
+ int name_len = 1;
+ char *p = str;
+ int ch;
+
+ while ((ch = *p++) != '\0' && ch != '=')
+ name_len++;
+
+ if (!ch)
+ abort ();
+
+ /* Search for replacing an existing environment variable, and
+ count the number of total environment variables. */
+ for (envp = old_environ; *envp; envp++)
+ {
+ num_envs++;
+ if (!strncmp (str, *envp, name_len))
+ {
+ *envp = str;
+ return 0;
+ }
+ }
+
+ /* Add a new environment variable */
+ environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
+ *environ = str;
+ bcopy ((char *) old_environ, (char *) (environ + 1),
+ sizeof (char *) * (num_envs+1));
+
+ return 0;
+#endif /* VMS */
+}
+#endif /* HAVE_PUTENV */
\f
-/* Compute a string to use as the base of all temporary file names.
- It is substituted for %g. */
+/* By default, colon separates directories in a path. */
+#ifndef PATH_SEPARATOR
+#define PATH_SEPARATOR ':'
+#endif
-static void
-choose_temp_base ()
+/* We maintain two prefix lists: one from COMPILER_PATH environment variable
+ and one from the PATH variable. */
+
+static struct path_prefix cpath, path;
+
+#ifdef CROSS_COMPILE
+/* This is the name of the target machine. We use it to form the name
+ of the files to execute. */
+
+static char *target_machine = TARGET_MACHINE;
+#endif
+
+/* Names under which we were executed. Never return one of those files in our
+ searches. */
+
+static struct path_prefix our_file_names;
+\f
+/* Determine if STRING is in PPREFIX.
+
+ This utility is currently only used to look up file names. Prefix lists
+ record directory names. This matters to us because the latter has a
+ trailing slash, so I've added a flag to handle both. */
+
+static int
+is_in_prefix_list (pprefix, string, filep)
+ struct path_prefix *pprefix;
+ char *string;
+ int filep;
{
- char *base = getenv ("TMPDIR");
- int len;
+ struct prefix_list *pl;
- if (base == (char *)0)
+ if (filep)
{
-#ifdef P_tmpdir
- if (access (P_tmpdir, R_OK | W_OK) == 0)
- base = P_tmpdir;
+ int len = strlen (string);
+
+ for (pl = pprefix->plist; pl; pl = pl->next)
+ {
+ if (strncmp (pl->prefix, string, len) == 0
+ && strcmp (pl->prefix + len, "/") == 0)
+ return 1;
+ }
+ }
+ else
+ {
+ for (pl = pprefix->plist; pl; pl = pl->next)
+ {
+ if (strcmp (pl->prefix, string) == 0)
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+/* Search for NAME using prefix list PPREFIX. We only look for executable
+ files.
+
+ Return 0 if not found, otherwise return its name, allocated with malloc. */
+
+static char *
+find_a_file (pprefix, name)
+ struct path_prefix *pprefix;
+ char *name;
+{
+ char *temp;
+ struct prefix_list *pl;
+ int len = pprefix->max_len + strlen (name) + 1;
+
+#ifdef EXECUTABLE_SUFFIX
+ len += strlen (EXECUTABLE_SUFFIX);
#endif
- if (base == (char *)0)
+
+ temp = xmalloc (len);
+
+ /* Determine the filename to execute (special case for absolute paths). */
+
+ if (*name == '/')
+ {
+ if (access (name, X_OK) == 0)
{
- if (access ("/usr/tmp", R_OK | W_OK) == 0)
- base = "/usr/tmp/";
- else
- base = "/tmp/";
+ strcpy (temp, name);
+ return temp;
}
}
+ else
+ for (pl = pprefix->plist; pl; pl = pl->next)
+ {
+ strcpy (temp, pl->prefix);
+ strcat (temp, name);
+ if (! is_in_prefix_list (&our_file_names, temp, 1)
+ /* This is a kludge, but there seems no way around it. */
+ && strcmp (temp, "./ld") != 0
+ && access (temp, X_OK) == 0)
+ return temp;
+
+#ifdef EXECUTABLE_SUFFIX
+ /* Some systems have a suffix for executable files.
+ So try appending that. */
+ strcat (temp, EXECUTABLE_SUFFIX);
+ if (! is_in_prefix_list (&our_file_names, temp, 1)
+ && access (temp, X_OK) == 0)
+ return temp;
+#endif
+ }
+
+ free (temp);
+ return 0;
+}
- len = strlen (base);
- temp_filename = xmalloc (len + sizeof("/ccXXXXXX"));
- strcpy (temp_filename, base);
- if (len > 0 && temp_filename[len-1] != '/')
- temp_filename[len++] = '/';
- strcpy (temp_filename + len, "ccXXXXXX");
+/* Add an entry for PREFIX to prefix list PPREFIX. */
- mktemp (temp_filename);
- temp_filename_length = strlen (temp_filename);
+static void
+add_prefix (pprefix, prefix)
+ struct path_prefix *pprefix;
+ char *prefix;
+{
+ struct prefix_list *pl, **prev;
+ int len;
+
+ if (pprefix->plist)
+ {
+ for (pl = pprefix->plist; pl->next; pl = pl->next)
+ ;
+ prev = &pl->next;
+ }
+ else
+ prev = &pprefix->plist;
+
+ /* Keep track of the longest prefix */
+
+ len = strlen (prefix);
+ if (len > pprefix->max_len)
+ pprefix->max_len = len;
+
+ pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
+ pl->prefix = savestring (prefix, len);
+
+ if (*prev)
+ pl->next = *prev;
+ else
+ pl->next = (struct prefix_list *) 0;
+ *prev = pl;
}
+\f
+/* Take the value of the environment variable ENV, break it into a path, and
+ add of the entries to PPREFIX. */
+
+static void
+prefix_from_env (env, pprefix)
+ char *env;
+ struct path_prefix *pprefix;
+{
+ char *p = getenv (env);
+
+ if (p)
+ prefix_from_string (p, pprefix);
+}
+
+static void
+prefix_from_string (p, pprefix)
+ char *p;
+ struct path_prefix *pprefix;
+{
+ char *startp, *endp;
+ char *nstore = (char *) xmalloc (strlen (p) + 3);
+
+ startp = endp = p;
+ while (1)
+ {
+ if (*endp == PATH_SEPARATOR || *endp == 0)
+ {
+ strncpy (nstore, startp, endp-startp);
+ if (endp == startp)
+ {
+ strcpy (nstore, "./");
+ }
+ else if (endp[-1] != '/')
+ {
+ nstore[endp-startp] = '/';
+ nstore[endp-startp+1] = 0;
+ }
+ else
+ nstore[endp-startp] = 0;
+ add_prefix (pprefix, nstore);
+ if (*endp == 0)
+ break;
+ endp = startp = endp + 1;
+ }
+ else
+ endp++;
+ }
+}
\f
-/* Main program. */
+/* Main program. */
int
main (argc, argv)
int argc;
char *argv[];
{
- char *outfile = "a.out";
+ char *ld_suffix = "ld";
+ char *full_ld_suffix = ld_suffix;
+ char *real_ld_suffix = "real-ld";
+ char *full_real_ld_suffix = real_ld_suffix;
+ char *collect_ld_suffix = "collect-ld";
+ char *nm_suffix = "nm";
+ char *full_nm_suffix = nm_suffix;
+ char *gnm_suffix = "gnm";
+ char *full_gnm_suffix = gnm_suffix;
+#ifdef LDD_SUFFIX
+ char *ldd_suffix = LDD_SUFFIX;
+ char *full_ldd_suffix = ldd_suffix;
+#endif
+ char *strip_suffix = "strip";
+ char *full_strip_suffix = strip_suffix;
+ char *gstrip_suffix = "gstrip";
+ char *full_gstrip_suffix = gstrip_suffix;
char *arg;
- FILE *outf;
+ FILE *outf, *exportf;
char *ld_file_name;
- char *c_file_name;
+ char *collect_name;
+ char *collect_names;
char *p;
- char *prefix;
char **c_argv;
char **c_ptr;
- char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+2);
+ char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+3);
char **ld1 = ld1_argv;
- char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+5);
+ char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+6);
char **ld2 = ld2_argv;
+ char **object_lst = (char **) xcalloc (sizeof (char *), argc);
+ char **object = object_lst;
int first_file;
int num_c_args = argc+7;
- int len;
- int clen;
#ifdef DEBUG
debug = 1;
vflag = 1;
#endif
+#ifndef DEFAULT_A_OUT_NAME
+ output_file = "a.out";
+#else
+ output_file = DEFAULT_A_OUT_NAME;
+#endif
+
+ obstack_begin (&temporary_obstack, 0);
+ obstack_begin (&permanent_obstack, 0);
+ temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0);
+ current_demangling_style = gnu_demangling;
+
+ /* We must check that we do not call ourselves in an infinite
+ recursion loop. We append the name used for us to the COLLECT_NAMES
+ environment variable.
+
+ In practice, collect will rarely invoke itself. This can happen now
+ that we are no longer called gld. A perfect example is when running
+ gcc in a build directory that has been installed. When looking for
+ ld's, we'll find our installed version and believe that's the real ld. */
+
+ /* We must also append COLLECT_NAME to COLLECT_NAMES to watch for the
+ previous version of collect (the one that used COLLECT_NAME and only
+ handled two levels of recursion). If we don't we may mutually recurse
+ forever. This can happen (I think) when bootstrapping the old version
+ and a new one is installed (rare, but we should handle it).
+ ??? Hopefully references to COLLECT_NAME can be removed at some point. */
+
+ collect_name = (char *) getenv ("COLLECT_NAME");
+ collect_names = (char *) getenv ("COLLECT_NAMES");
+
+ p = (char *) xmalloc (strlen ("COLLECT_NAMES=")
+ + (collect_name ? strlen (collect_name) + 1 : 0)
+ + (collect_names ? strlen (collect_names) + 1 : 0)
+ + strlen (argv[0]) + 1);
+ strcpy (p, "COLLECT_NAMES=");
+ if (collect_name != 0)
+ sprintf (p + strlen (p), "%s%c", collect_name, PATH_SEPARATOR);
+ if (collect_names != 0)
+ sprintf (p + strlen (p), "%s%c", collect_names, PATH_SEPARATOR);
+ strcat (p, argv[0]);
+ putenv (p);
+
+ prefix_from_env ("COLLECT_NAMES", &our_file_names);
+
+ /* Set environment variable COLLECT_NAME to our name so the previous version
+ of collect won't find us. If it does we'll mutually recurse forever.
+ This can happen when bootstrapping the new version and an old version is
+ installed.
+ ??? Hopefully this bit of code can be removed at some point. */
+
+ p = xmalloc (strlen ("COLLECT_NAME=") + strlen (argv[0]) + 1);
+ sprintf (p, "COLLECT_NAME=%s", argv[0]);
+ putenv (p);
+
p = (char *) getenv ("COLLECT_GCC_OPTIONS");
if (p)
while (*p)
if (argc < 2)
fatal ("no arguments");
- signal (SIGQUIT, handler);
- signal (SIGINT, handler);
- signal (SIGALRM, handler);
- signal (SIGHUP, handler);
- signal (SIGSEGV, handler);
- signal (SIGBUS, handler);
-
- /* Try to discover a valid linker/assembler/nm/strip to use. */
- len = strlen (argv[0]);
- prefix = (char *)0;
- if (len >= sizeof ("ld")-1)
- {
- p = argv[0] + len - sizeof ("ld") + 1;
- if (strcmp (p, "ld") == 0)
- {
- prefix = argv[0];
- *p = '\0';
- }
- }
-
- if (prefix == (char *)0)
- {
- p = strrchr (argv[0], '/');
- if (p != (char *)0)
- {
- prefix = argv[0];
- p[1] = '\0';
- }
-
-#ifdef STANDARD_EXEC_PREFIX
- else if (access (STANDARD_EXEC_PREFIX, X_OK) == 0)
- prefix = STANDARD_EXEC_PREFIX;
+#ifdef SIGQUIT
+ if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
+ signal (SIGQUIT, handler);
#endif
-
-#ifdef MD_EXEC_PREFIX
- else if (access (MD_EXEC_PREFIX, X_OK) == 0)
- prefix = MD_EXEC_PREFIX;
+ if (signal (SIGINT, SIG_IGN) != SIG_IGN)
+ signal (SIGINT, handler);
+#ifdef SIGALRM
+ if (signal (SIGALRM, SIG_IGN) != SIG_IGN)
+ signal (SIGALRM, handler);
+#endif
+#ifdef SIGHUP
+ if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
+ signal (SIGHUP, handler);
+#endif
+ if (signal (SIGSEGV, SIG_IGN) != SIG_IGN)
+ signal (SIGSEGV, handler);
+#ifdef SIGBUS
+ if (signal (SIGBUS, SIG_IGN) != SIG_IGN)
+ signal (SIGBUS, handler);
#endif
- else if (access ("/usr/ccs/gcc", X_OK) == 0)
- prefix = "/usr/ccs/gcc/";
-
- else if (access ("/usr/ccs/bin", X_OK) == 0)
- prefix = "/usr/ccs/bin/";
-
- else
- prefix = "/bin/";
- }
-
- clen = len = strlen (prefix);
+ /* Extract COMPILER_PATH and PATH into our prefix list. */
+ prefix_from_env ("COMPILER_PATH", &cpath);
+ prefix_from_env ("PATH", &path);
-#ifdef STANDARD_BIN_PREFIX
- if (clen < sizeof (STANDARD_BIN_PREFIX) - 1)
- clen = sizeof (STANDARD_BIN_PREFIX) - 1;
+#ifdef CROSS_COMPILE
+ /* If we look for a program in the compiler directories, we just use
+ the short name, since these directories are already system-specific.
+ But it we look for a took in the system directories, we need to
+ qualify the program name with the target machine. */
+
+ full_ld_suffix
+ = xcalloc (strlen (ld_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_ld_suffix, target_machine);
+ strcat (full_ld_suffix, "-");
+ strcat (full_ld_suffix, ld_suffix);
+
+ full_real_ld_suffix
+ = xcalloc (strlen (real_ld_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_real_ld_suffix, target_machine);
+ strcat (full_real_ld_suffix, "-");
+ strcat (full_real_ld_suffix, real_ld_suffix);
+
+#if 0
+ full_gld_suffix
+ = xcalloc (strlen (gld_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_gld_suffix, target_machine);
+ strcat (full_gld_suffix, "-");
+ strcat (full_gld_suffix, gld_suffix);
#endif
-#ifdef STANDARD_EXEC_PREFIX
- if (clen < sizeof (STANDARD_EXEC_PREFIX) - 1)
- clen = sizeof (STANDARD_EXEC_PREFIX) - 1;
+ full_nm_suffix
+ = xcalloc (strlen (nm_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_nm_suffix, target_machine);
+ strcat (full_nm_suffix, "-");
+ strcat (full_nm_suffix, nm_suffix);
+
+ full_gnm_suffix
+ = xcalloc (strlen (gnm_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_gnm_suffix, target_machine);
+ strcat (full_gnm_suffix, "-");
+ strcat (full_gnm_suffix, gnm_suffix);
+
+#ifdef LDD_SUFFIX
+ full_ldd_suffix
+ = xcalloc (strlen (ldd_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_ldd_suffix, target_machine);
+ strcat (full_ldd_suffix, "-");
+ strcat (full_ldd_suffix, ldd_suffix);
#endif
- /* Allocate enough string space for the longest possible pathnames. */
- ld_file_name = xcalloc (len + sizeof ("real-ld"), 1);
- nm_file_name = xcalloc (len + sizeof ("gnm"), 1);
- strip_file_name = xcalloc (len + sizeof ("gstrip"), 1);
+ full_strip_suffix
+ = xcalloc (strlen (strip_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_strip_suffix, target_machine);
+ strcat (full_strip_suffix, "-");
+ strcat (full_strip_suffix, strip_suffix);
+
+ full_gstrip_suffix
+ = xcalloc (strlen (gstrip_suffix) + strlen (target_machine) + 2, 1);
+ strcpy (full_gstrip_suffix, target_machine);
+ strcat (full_gstrip_suffix, "-");
+ strcat (full_gstrip_suffix, gstrip_suffix);
+#endif /* CROSS_COMPILE */
- /* Determine the full path name of the ld program to use. */
- bcopy (prefix, ld_file_name, len);
- strcpy (ld_file_name + len, "real-ld");
- if (access (ld_file_name, X_OK) < 0)
- {
- strcpy (ld_file_name + len, "gld");
- if (access (ld_file_name, X_OK) < 0)
- {
- free (ld_file_name);
+ /* Try to discover a valid linker/nm/strip to use. */
+
+ /* Maybe we know the right file to use (if not cross). */
#ifdef REAL_LD_FILE_NAME
- ld_file_name = REAL_LD_FILE_NAME;
-#else
- ld_file_name = (access ("/usr/bin/ld", X_OK) == 0
- ? "/usr/bin/ld" : "/bin/ld");
+ ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME);
+ if (ld_file_name == 0)
#endif
- }
- }
-
- /* Determine the full path name of the C compiler to use. */
- c_file_name = getenv ("COLLECT_GCC");
- if (c_file_name == 0 || c_file_name[0] != '/')
+ /* Search the (target-specific) compiler dirs for ld'. */
+ ld_file_name = find_a_file (&cpath, real_ld_suffix);
+ /* Likewise for `collect-ld'. */
+ if (ld_file_name == 0)
+ ld_file_name = find_a_file (&cpath, collect_ld_suffix);
+ /* Search the compiler directories for `ld'. We have protection against
+ recursive calls in find_a_file. */
+ if (ld_file_name == 0)
+ ld_file_name = find_a_file (&cpath, ld_suffix);
+ /* Search the ordinary system bin directories
+ for `ld' (if native linking) or `TARGET-ld' (if cross). */
+ if (ld_file_name == 0)
+ ld_file_name = find_a_file (&path, full_ld_suffix);
+
+ /* If we've invoked ourselves, try again with LD_FILE_NAME. */
+
+ if (collect_names != 0)
{
- c_file_name = xcalloc (clen + sizeof ("gcc"), 1);
- bcopy (prefix, c_file_name, len);
- strcpy (c_file_name + len, "gcc");
- if (access (c_file_name, X_OK) < 0)
+ if (ld_file_name != 0)
{
-#ifdef STANDARD_BIN_PREFIX
- strcpy (c_file_name, STANDARD_BIN_PREFIX);
- strcat (c_file_name, "gcc");
- if (access (c_file_name, X_OK) < 0)
-#endif
- {
-#ifdef STANDARD_EXEC_PREFIX
- strcpy (c_file_name, STANDARD_EXEC_PREFIX);
- strcat (c_file_name, "gcc");
- if (access (c_file_name, X_OK) < 0)
-#endif
- {
- strcpy (c_file_name, "gcc");
- }
- }
+ argv[0] = ld_file_name;
+ execvp (argv[0], argv);
}
+ fatal ("cannot find `ld'");
}
- /* Determine the full path name of the nm to use. */
- bcopy (prefix, nm_file_name, len);
- strcpy (nm_file_name + len, "nm");
- if (access (nm_file_name, X_OK) < 0)
- {
- strcpy (nm_file_name + len, "gnm");
- if (access (nm_file_name, X_OK) < 0)
- {
- free (nm_file_name);
#ifdef REAL_NM_FILE_NAME
- nm_file_name = REAL_NM_FILE_NAME;
-#else
- nm_file_name = (access ("/usr/bin/nm", X_OK) == 0
- ? "/usr/bin/nm" : "/bin/nm");
+ nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME);
+ if (nm_file_name == 0)
+#endif
+ nm_file_name = find_a_file (&cpath, gnm_suffix);
+ if (nm_file_name == 0)
+ nm_file_name = find_a_file (&path, full_gnm_suffix);
+ if (nm_file_name == 0)
+ nm_file_name = find_a_file (&cpath, nm_suffix);
+ if (nm_file_name == 0)
+ nm_file_name = find_a_file (&path, full_nm_suffix);
+
+#ifdef LDD_SUFFIX
+ ldd_file_name = find_a_file (&cpath, ldd_suffix);
+ if (ldd_file_name == 0)
+ ldd_file_name = find_a_file (&path, full_ldd_suffix);
#endif
- }
- }
- /* Determine the full pathname of the strip to use. */
- bcopy (prefix, strip_file_name, len);
- strcpy (strip_file_name + len, "strip");
- if (access (strip_file_name, X_OK) < 0)
- {
- strcpy (strip_file_name + len, "gstrip");
- if (access (strip_file_name, X_OK) < 0)
- {
- free (strip_file_name);
#ifdef REAL_STRIP_FILE_NAME
- strip_file_name = REAL_STRIP_FILE_NAME;
+ strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME);
+ if (strip_file_name == 0)
+#endif
+ strip_file_name = find_a_file (&cpath, gstrip_suffix);
+ if (strip_file_name == 0)
+ strip_file_name = find_a_file (&path, full_gstrip_suffix);
+ if (strip_file_name == 0)
+ strip_file_name = find_a_file (&cpath, strip_suffix);
+ if (strip_file_name == 0)
+ strip_file_name = find_a_file (&path, full_strip_suffix);
+
+ /* Determine the full path name of the C compiler to use. */
+ c_file_name = getenv ("COLLECT_GCC");
+ if (c_file_name == 0)
+ {
+#ifdef CROSS_COMPILE
+ c_file_name = xcalloc (sizeof ("gcc-") + strlen (target_machine) + 1, 1);
+ strcpy (c_file_name, target_machine);
+ strcat (c_file_name, "-gcc");
#else
- strip_file_name = (access ("/usr/bin/strip", X_OK) == 0
- ? "/usr/bin/strip" : "/bin/strip");
+ c_file_name = "gcc";
#endif
- }
}
- *ld1++ = *ld2++ = "ld";
+ p = find_a_file (&cpath, c_file_name);
+
+ /* Here it should be safe to use the system search path since we should have
+ already qualified the name of the compiler when it is needed. */
+ if (p == 0)
+ p = find_a_file (&path, c_file_name);
+
+ if (p)
+ c_file_name = p;
+
+ *ld1++ = *ld2++ = ld_file_name;
- /* Make temp file names. */
- choose_temp_base ();
+ /* Make temp file names. */
+ temp_filename = choose_temp_base ();
+ temp_filename_length = strlen (temp_filename);
c_file = xcalloc (temp_filename_length + sizeof (".c"), 1);
o_file = xcalloc (temp_filename_length + sizeof (".o"), 1);
+ export_file = xmalloc (temp_filename_length + sizeof (".x"));
+ ldout = xmalloc (temp_filename_length + sizeof (".ld"));
+ sprintf (ldout, "%s.ld", temp_filename);
sprintf (c_file, "%s.c", temp_filename);
sprintf (o_file, "%s.o", temp_filename);
+ sprintf (export_file, "%s.x", temp_filename);
*c_ptr++ = c_file_name;
*c_ptr++ = "-c";
*c_ptr++ = "-o";
If you propose to make GCC pass some other option,
just imagine what will happen if ld is really ld!!! */
- /* Parse arguments. Remember output file spec, pass the rest to ld. */
+ /* Parse arguments. Remember output file spec, pass the rest to ld. */
/* After the first file, put in the c++ rt0. */
first_file = 1;
- while ((arg = *++argv) != (char *)0)
+ while ((arg = *++argv) != (char *) 0)
{
*ld1++ = *ld2++ = arg;
if (arg[0] == '-')
+ {
switch (arg[1])
{
case 'd':
}
break;
+ case 'l':
+ if (first_file)
+ {
+ /* place o_file BEFORE this argument! */
+ first_file = 0;
+ ld2--;
+ *ld2++ = o_file;
+ *ld2++ = arg;
+ }
+ break;
+
case 'o':
- outfile = (arg[2] == '\0') ? argv[1] : &arg[2];
+ if (arg[2] == '\0')
+ output_file = *ld1++ = *ld2++ = *++argv;
+ else
+ output_file = &arg[2];
break;
case 'r':
break;
case 's':
- if (arg[2] == '\0')
+ if (arg[2] == '\0' && do_collecting)
{
/* We must strip after the nm run, otherwise C++ linking
won't work. Thus we strip in the second ld run, or
vflag = 1;
break;
}
-
- else if (first_file
- && (p = strrchr (arg, '.')) != (char *)0
- && strcmp (p, ".o") == 0)
+ }
+ else if ((p = rindex (arg, '.')) != (char *) 0
+ && (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0))
{
- first_file = 0;
- *ld2++ = o_file;
+ if (first_file)
+ {
+ first_file = 0;
+ if (p[1] == 'o')
+ *ld2++ = o_file;
+ else
+ {
+ /* place o_file BEFORE this argument! */
+ ld2--;
+ *ld2++ = o_file;
+ *ld2++ = arg;
+ }
+ }
+ if (p[1] == 'o')
+ *object++ = arg;
}
}
while (*q && *q != ' ') q++;
if (*p == '-' && (p[1] == 'm' || p[1] == 'f'))
*c_ptr++ = savestring (p, q - p);
+ if (strncmp (p, "-shared", sizeof ("shared") - 1) == 0)
+ shared_obj = 1;
if (*q) q++;
p = q;
}
+#ifdef COLLECT_EXPORT_LIST
+ /* The AIX linker will discard static constructors in object files if
+ nothing else in the file is referenced, so look at them first. */
+ while (object_lst < object)
+ scan_prog_file (*object_lst++, PASS_OBJ);
+
+ {
+ char *buf = alloca (strlen (export_file) + 5);
+ sprintf (buf, "-bE:%s", export_file);
+ *ld1++ = buf;
+ *ld2++ = buf;
+ exportf = fopen (export_file, "w");
+ if (exportf == (FILE *) 0)
+ fatal_perror ("%s", export_file);
+ write_export_file (exportf);
+ if (fclose (exportf))
+ fatal_perror ("closing %s", export_file);
+ }
+#endif
+
*c_ptr++ = c_file;
- *c_ptr = *ld1 = *ld2 = (char *)0;
+ *object = *c_ptr = *ld1 = (char *) 0;
if (vflag)
{
if (debug)
{
char *ptr;
- fprintf (stderr, "prefix = %s\n", prefix);
- fprintf (stderr, "ld_file_name = %s\n", ld_file_name);
- fprintf (stderr, "c_file_name = %s\n", c_file_name);
- fprintf (stderr, "nm_file_name = %s\n", nm_file_name);
- fprintf (stderr, "c_file = %s\n", c_file);
- fprintf (stderr, "o_file = %s\n", o_file);
+ fprintf (stderr, "ld_file_name = %s\n",
+ (ld_file_name ? ld_file_name : "not found"));
+ fprintf (stderr, "c_file_name = %s\n",
+ (c_file_name ? c_file_name : "not found"));
+ fprintf (stderr, "nm_file_name = %s\n",
+ (nm_file_name ? nm_file_name : "not found"));
+#ifdef LDD_SUFFIX
+ fprintf (stderr, "ldd_file_name = %s\n",
+ (ldd_file_name ? ldd_file_name : "not found"));
+#endif
+ fprintf (stderr, "strip_file_name = %s\n",
+ (strip_file_name ? strip_file_name : "not found"));
+ fprintf (stderr, "c_file = %s\n",
+ (c_file ? c_file : "not found"));
+ fprintf (stderr, "o_file = %s\n",
+ (o_file ? o_file : "not found"));
+
+ ptr = getenv ("COLLECT_NAMES");
+ if (ptr)
+ fprintf (stderr, "COLLECT_NAMES = %s\n", ptr);
ptr = getenv ("COLLECT_GCC_OPTIONS");
if (ptr)
fprintf (stderr, "\n");
}
- /* Load the program, searching all libraries.
- Examine the namelist with nm and search it for static constructors
- and destructors to call.
- Write the constructor and destructor tables to a .s file and reload. */
+ /* Load the program, searching all libraries. */
- fork_execute (ld_file_name, ld1_argv);
+ collect_execute ("ld", ld1_argv, ldout);
+ do_wait ("ld");
+ dump_file (ldout);
+ unlink (ldout);
- /* If -r, don't build the constructor or destructor list, just return now. */
- if (rflag)
+ /* If -r or they'll be run via some other method, don't build the
+ constructor or destructor list, just return now. */
+ if (rflag || ! do_collecting)
return 0;
- scan_prog_file (outfile, PASS_FIRST);
+ /* Examine the namelist with nm and search it for static constructors
+ and destructors to call.
+ Write the constructor and destructor tables to a .s file and reload. */
+
+ scan_prog_file (output_file, PASS_FIRST);
+
+#ifdef SCAN_LIBRARIES
+ scan_libraries (output_file);
+#endif
if (debug)
{
fprintf (stderr, "%d destructor(s) found\n", destructors.number);
}
- if (constructors.number == 0 && destructors.number == 0)
+ if (constructors.number == 0 && destructors.number == 0
+#ifdef LDD_SUFFIX
+ /* If we will be running these functions ourselves, we want to emit
+ stubs into the shared library so that we don't have to relink
+ dependent programs when we add static objects. */
+ && ! shared_obj
+#endif
+ )
{
/* Strip now if it was requested on the command line. */
if (strip_flag)
{
char **strip_argv = (char **) xcalloc (sizeof (char *), 3);
- strip_argv[0] = "strip";
- strip_argv[1] = outfile;
+ strip_argv[0] = strip_file_name;
+ strip_argv[1] = output_file;
strip_argv[2] = (char *) 0;
- fork_execute (strip_file_name, strip_argv);
+ fork_execute ("strip", strip_argv);
}
+
+#ifdef COLLECT_EXPORT_LIST
+ maybe_unlink (export_file);
+#endif
return 0;
}
+ maybe_unlink(output_file);
outf = fopen (c_file, "w");
- if (outf == (FILE *)0)
+ if (outf == (FILE *) 0)
fatal_perror ("%s", c_file);
write_c_file (outf, c_file);
if (fclose (outf))
fatal_perror ("closing %s", c_file);
+ /* Tell the linker that we have initializer and finalizer functions. */
+#ifdef LD_INIT_SWITCH
+ *ld2++ = LD_INIT_SWITCH;
+ *ld2++ = initname;
+ *ld2++ = LD_FINI_SWITCH;
+ *ld2++ = fininame;
+#endif
+ *ld2 = (char*) 0;
+
+#ifdef COLLECT_EXPORT_LIST
+ if (shared_obj)
+ {
+ add_to_list (&exports, initname);
+ add_to_list (&exports, fininame);
+ add_to_list (&exports, "_GLOBAL__DI");
+ add_to_list (&exports, "_GLOBAL__DD");
+ exportf = fopen (export_file, "w");
+ if (exportf == (FILE *) 0)
+ fatal_perror ("%s", export_file);
+ write_export_file (exportf);
+ if (fclose (exportf))
+ fatal_perror ("closing %s", export_file);
+ }
+#endif
+
if (debug)
{
- fprintf (stderr, "\n========== outfile = %s, c_file = %s\n", outfile, c_file);
+ fprintf (stderr, "\n========== output_file = %s, c_file = %s\n",
+ output_file, c_file);
write_c_file (stderr, "stderr");
fprintf (stderr, "========== end of c_file\n\n");
+#ifdef COLLECT_EXPORT_LIST
+ fprintf (stderr, "\n========== export_file = %s\n", export_file);
+ write_export_file (stderr);
+ fprintf (stderr, "========== end of export_file\n\n");
+#endif
}
/* Assemble the constructor and destructor tables.
- Link the tables in with the rest of the program. */
+ Link the tables in with the rest of the program. */
- fork_execute (c_file_name, c_argv);
- fork_execute (ld_file_name, ld2_argv);
+ fork_execute ("gcc", c_argv);
+ fork_execute ("ld", ld2_argv);
/* Let scan_prog_file do any final mods (OSF/rose needs this for
constructors/destructors in shared libraries. */
- scan_prog_file (outfile, PASS_SECOND);
+ scan_prog_file (output_file, PASS_SECOND);
maybe_unlink (c_file);
maybe_unlink (o_file);
+ maybe_unlink (export_file);
return 0;
}
\f
-/* Wait for a process to finish, and exit if a non-zero status is found. */
+/* Wait for a process to finish, and exit if a non-zero status is found. */
-static void
-do_wait (prog)
+int
+collect_wait (prog)
char *prog;
{
int status;
wait (&status);
if (status)
{
- int sig = status & 0x7F;
- int ret;
-
- if (sig != -1 && sig != 0)
+ if (WIFSIGNALED (status))
{
+ int sig = WTERMSIG (status);
#ifdef NO_SYS_SIGLIST
error ("%s terminated with signal %d %s",
prog,
(status & 0200) ? ", core dumped" : "");
#endif
- my_exit (127);
+ collect_exit (FATAL_EXIT_CODE);
}
- ret = ((status & 0xFF00) >> 8);
- if (ret != -1 && ret != 0)
- {
- error ("%s returned %d exit status", prog, ret);
- my_exit (ret);
- }
+ if (WIFEXITED (status))
+ return WEXITSTATUS (status);
+ }
+ return 0;
+}
+
+static void
+do_wait (prog)
+ char *prog;
+{
+ int ret = collect_wait (prog);
+ if (ret != 0)
+ {
+ error ("%s returned %d exit status", prog, ret);
+ collect_exit (ret);
}
}
\f
/* Fork and execute a program, and wait for the reply. */
-static void
-fork_execute (prog, argv)
+void
+collect_execute (prog, argv, redir)
char *prog;
char **argv;
+ char *redir;
{
int pid;
- void (*int_handler) ();
- void (*quit_handler) ();
if (vflag || debug)
{
char **p_argv;
char *str;
- fprintf (stderr, "%s", prog);
- for (p_argv = &argv[1]; (str = *p_argv) != (char *)0; p_argv++)
+ if (argv[0])
+ fprintf (stderr, "%s", argv[0]);
+ else
+ fprintf (stderr, "[cannot find %s]", prog);
+
+ for (p_argv = &argv[1]; (str = *p_argv) != (char *) 0; p_argv++)
fprintf (stderr, " %s", str);
fprintf (stderr, "\n");
fflush (stdout);
fflush (stderr);
+ /* If we can't find a program we need, complain error. Do this here
+ since we might not end up needing something that we couldn't find. */
+
+ if (argv[0] == 0)
+ fatal ("cannot find `%s'", prog);
+
pid = vfork ();
if (pid == -1)
- fatal_perror ("vfork");
+ {
+#ifdef vfork
+ fatal_perror ("fork");
+#else
+ fatal_perror ("vfork");
+#endif
+ }
if (pid == 0) /* child context */
{
- execvp (prog, argv);
+ if (redir)
+ {
+ unlink (redir);
+ if (freopen (redir, "a", stdout) == NULL)
+ fatal_perror ("redirecting stdout");
+ if (freopen (redir, "a", stderr) == NULL)
+ fatal_perror ("redirecting stderr");
+ }
+
+ execvp (argv[0], argv);
fatal_perror ("executing %s", prog);
}
+}
- int_handler = (void (*) ())signal (SIGINT, SIG_IGN);
- quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN);
-
+static void
+fork_execute (prog, argv)
+ char *prog;
+ char **argv;
+{
+ collect_execute (prog, argv, NULL);
do_wait (prog);
-
- signal (SIGINT, int_handler);
- signal (SIGQUIT, quit_handler);
}
-
\f
/* Unlink a file unless we are debugging. */
struct head *head_ptr;
char *name;
{
- struct id *newid = (struct id *) xcalloc (sizeof (*newid) + strlen (name), 1);
+ struct id *newid
+ = (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1);
+ struct id *p;
static long sequence_number = 0;
- newid->sequence = ++sequence_number;
strcpy (newid->name, name);
if (head_ptr->first)
else
head_ptr->first = newid;
+ /* Check for duplicate symbols. */
+ for (p = head_ptr->first;
+ strcmp (name, p->name) != 0;
+ p = p->next)
+ ;
+ if (p != newid)
+ {
+ head_ptr->last->next = 0;
+ free (newid);
+ return;
+ }
+
+ newid->sequence = ++sequence_number;
head_ptr->last = newid;
head_ptr->number++;
}
{
while (list)
{
- fprintf (stream, "%sx%d asm (\"%s\");\n",
+ fprintf (stream, "%sx%d __asm__ (\"%s\");\n",
prefix, list->sequence, list->name);
list = list->next;
}
}
-/* Write the constructor/destructor tables. */
+/* Write out the constructor and destructor tables statically (for a shared
+ object), along with the functions to execute them. */
static void
-write_c_file (stream, name)
+write_c_file_stat (stream, name)
+ FILE *stream;
+ char *name;
+{
+ char *prefix, *p, *q;
+
+ /* Figure out name of output_file, stripping off .so version. */
+ p = rindex (output_file, '/');
+ if (p == 0)
+ p = (char *) output_file;
+ else
+ p++;
+ q = p;
+ while (q)
+ {
+ q = index (q,'.');
+ if (q == 0)
+ {
+ q = p + strlen (p);
+ break;
+ }
+ else
+ {
+ if (strncmp (q, ".so", 3) == 0)
+ {
+ q += 3;
+ break;
+ }
+ else
+ q++;
+ }
+ }
+ /* q points to null at end of the string (or . of the .so version) */
+ prefix = xmalloc (q - p + 1);
+ strncpy (prefix, p, q - p);
+ prefix[q - p] = 0;
+ for (q = prefix; *q; q++)
+ if (!isalnum (*q))
+ *q = '_';
+ if (debug)
+ fprintf (stderr, "\nwrite_c_file - output name is %s, prefix is %s\n",
+ output_file, prefix);
+
+#define INIT_NAME_FORMAT "_GLOBAL__FI_%s"
+ initname = xmalloc (strlen (prefix) + sizeof (INIT_NAME_FORMAT) - 2);
+ sprintf (initname, INIT_NAME_FORMAT, prefix);
+
+#define FINI_NAME_FORMAT "_GLOBAL__FD_%s"
+ fininame = xmalloc (strlen (prefix) + sizeof (FINI_NAME_FORMAT) - 2);
+ sprintf (fininame, FINI_NAME_FORMAT, prefix);
+
+ free (prefix);
+
+ /* Write the tables as C code */
+
+ fprintf (stream, "static int count;\n");
+ fprintf (stream, "typedef void entry_pt();\n");
+ write_list_with_asm (stream, "extern entry_pt ", constructors.first);
+ fprintf (stream, "void %s() {\n", initname);
+ if (constructors.number > 0)
+ {
+ fprintf (stream, "\tstatic entry_pt *ctors[] = {\n");
+ write_list (stream, "\t\t", constructors.first);
+ fprintf (stream, "\t};\n");
+ fprintf (stream, "\tentry_pt **p;\n");
+ fprintf (stream, "\tif (count++ != 0) return;\n");
+ fprintf (stream, "\tp = ctors + %d;\n", constructors.number);
+ fprintf (stream, "\twhile (p > ctors) (*--p)();\n");
+ }
+ else
+ fprintf (stream, "\t++count;\n");
+ fprintf (stream, "}\n");
+ write_list_with_asm (stream, "extern entry_pt ", destructors.first);
+ fprintf (stream, "void %s() {\n", fininame);
+ if (destructors.number > 0)
+ {
+ fprintf (stream, "\tstatic entry_pt *dtors[] = {\n");
+ write_list (stream, "\t\t", destructors.first);
+ fprintf (stream, "\t};\n");
+ fprintf (stream, "\tentry_pt **p;\n");
+ fprintf (stream, "\tif (--count != 0) return;\n");
+ fprintf (stream, "\tp = dtors;\n");
+ fprintf (stream, "\twhile (p < dtors + %d) (*p++)();\n",
+ destructors.number);
+ }
+ fprintf (stream, "}\n");
+
+ if (shared_obj)
+ {
+ fprintf (stream, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname);
+ fprintf (stream, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame);
+ }
+}
+
+/* Write the constructor/destructor tables. */
+
+static void
+write_c_file_glob (stream, name)
FILE *stream;
char *name;
{
write_list (stream, "\t", destructors.first);
fprintf (stream, "\t0\n};\n\n");
- fprintf (stream, "extern entry_pt __main;\n");
- fprintf (stream, "entry_pt *__main_reference = __main;\n\n");
+ fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN);
+ fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN);
+}
+
+static void
+write_c_file (stream, name)
+ FILE *stream;
+ char *name;
+{
+ fprintf (stream, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
+#ifndef LD_INIT_SWITCH
+ if (! shared_obj)
+ write_c_file_glob (stream, name);
+ else
+#endif
+ write_c_file_stat (stream, name);
+ fprintf (stream, "#ifdef __cplusplus\n}\n#endif\n");
+}
+
+static void
+write_export_file (stream)
+ FILE *stream;
+{
+ struct id *list = exports.first;
+ for (; list; list = list->next)
+ fprintf (stream, "%s\n", list->name);
}
-
\f
#ifdef OBJECT_FORMAT_NONE
char *p, buf[1024];
FILE *inf;
- if (which_pass != PASS_FIRST)
+ if (which_pass == PASS_SECOND)
return;
- nm_argv[argc++] = "nm";
+ /* If we don't have an `nm', complain. */
+ if (nm_file_name == 0)
+ fatal ("cannot find `nm'");
+
+ nm_argv[argc++] = nm_file_name;
if (NM_FLAGS[0] != '\0')
nm_argv[argc++] = NM_FLAGS;
nm_argv[argc++] = prog_name;
- nm_argv[argc++] = (char *)0;
+ nm_argv[argc++] = (char *) 0;
if (pipe (pipe_fd) < 0)
fatal_perror ("pipe");
inf = fdopen (pipe_fd[0], "r");
- if (inf == (FILE *)0)
+ if (inf == (FILE *) 0)
fatal_perror ("fdopen");
/* Trace if needed. */
char **p_argv;
char *str;
- fprintf (stderr, "%s", nm_file_name);
- for (p_argv = &nm_argv[1]; (str = *p_argv) != (char *)0; p_argv++)
+ for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *) 0; p_argv++)
fprintf (stderr, " %s", str);
fprintf (stderr, "\n");
/* Spawn child nm on pipe */
pid = vfork ();
if (pid == -1)
- fatal_perror ("vfork");
+ {
+#ifdef vfork
+ fatal_perror ("fork");
+#else
+ fatal_perror ("vfork");
+#endif
+ }
if (pid == 0) /* child context */
{
/* Parent context from here on. */
int_handler = (void (*) ())signal (SIGINT, SIG_IGN);
+#ifdef SIGQUIT
quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN);
+#endif
if (close (pipe_fd[1]) < 0)
fatal_perror ("close (%d)", pipe_fd[1]);
fprintf (stderr, "\nnm output with constructors/destructors.\n");
/* Read each line of nm output. */
- while (fgets (buf, sizeof buf, inf) != (char *)0)
+ while (fgets (buf, sizeof buf, inf) != (char *) 0)
{
int ch, ch2;
char *name, *end;
/* If it contains a constructor or destructor name, add the name
- to the appropriate list. */
+ to the appropriate list. */
for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++)
- ;
+ if (ch == ' ' && p[1] == 'U' && p[2] == ' ')
+ break;
- if (ch == '\0' || ch == '\n')
+ if (ch != '_')
continue;
name = p;
end++)
continue;
+
*end = '\0';
switch (is_ctor_dtor (name))
{
case 1:
- add_to_list (&constructors, name);
+ if (which_pass != PASS_LIB)
+ add_to_list (&constructors, name);
break;
case 2:
+ if (which_pass != PASS_LIB)
+ add_to_list (&destructors, name);
+ break;
+
+ case 3:
+ if (which_pass != PASS_LIB)
+ fatal ("init function found in object %s", prog_name);
+#ifndef LD_INIT_SWITCH
+ add_to_list (&constructors, name);
+#endif
+ break;
+
+ case 4:
+ if (which_pass != PASS_LIB)
+ fatal ("fini function found in object %s", prog_name);
+#ifndef LD_FINI_SWITCH
add_to_list (&destructors, name);
+#endif
break;
default: /* not a constructor or destructor */
do_wait (nm_file_name);
signal (SIGINT, int_handler);
+#ifdef SIGQUIT
+ signal (SIGQUIT, quit_handler);
+#endif
+}
+
+#if SUNOS4_SHARED_LIBRARIES
+
+/* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries
+ that the output file depends upon and their initialization/finalization
+ routines, if any. */
+
+#include <a.out.h>
+#include <fcntl.h>
+#include <link.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include <unistd.h>
+#include <sys/dir.h>
+
+/* pointers to the object file */
+unsigned object; /* address of memory mapped file */
+unsigned objsize; /* size of memory mapped to file */
+char * code; /* pointer to code segment */
+char * data; /* pointer to data segment */
+struct nlist *symtab; /* pointer to symbol table */
+struct link_dynamic *ld;
+struct link_dynamic_2 *ld_2;
+struct head libraries;
+
+/* Map the file indicated by NAME into memory and store its address. */
+
+static void
+mapfile (name)
+ char *name;
+{
+ int fp;
+ struct stat s;
+ if ((fp = open (name, O_RDONLY)) == -1)
+ fatal ("unable to open file '%s'", name);
+ if (fstat (fp, &s) == -1)
+ fatal ("unable to stat file '%s'", name);
+
+ objsize = s.st_size;
+ object = (unsigned) mmap (0, objsize, PROT_READ|PROT_WRITE, MAP_PRIVATE,
+ fp, 0);
+ if (object == -1)
+ fatal ("unable to mmap file '%s'", name);
+
+ close (fp);
+}
+
+/* Helpers for locatelib. */
+
+static char *libname;
+
+static int
+libselect (d)
+ struct direct *d;
+{
+ return (strncmp (libname, d->d_name, strlen (libname)) == 0);
+}
+
+/* If one file has an additional numeric extension past LIBNAME, then put
+ that one first in the sort. If both files have additional numeric
+ extensions, then put the one with the higher number first in the sort.
+
+ We must verify that the extension is numeric, because Sun saves the
+ original versions of patched libraries with a .FCS extension. Files with
+ invalid extensions must go last in the sort, so that they won't be used. */
+
+static int
+libcompare (d1, d2)
+ struct direct **d1, **d2;
+{
+ int i1, i2 = strlen (libname);
+ char *e1 = (*d1)->d_name + i2;
+ char *e2 = (*d2)->d_name + i2;
+
+ while (*e1 && *e2 && *e1 == '.' && *e2 == '.'
+ && e1[1] && isdigit (e1[1]) && e2[1] && isdigit (e2[1]))
+ {
+ ++e1;
+ ++e2;
+ i1 = strtol (e1, &e1, 10);
+ i2 = strtol (e2, &e2, 10);
+ if (i1 != i2)
+ return i1 - i2;
+ }
+
+ if (*e1)
+ {
+ /* It has a valid numeric extension, prefer this one. */
+ if (*e1 == '.' && e1[1] && isdigit (e1[1]))
+ return 1;
+ /* It has a invalid numeric extension, must prefer the other one. */
+ else
+ return -1;
+ }
+ else if (*e2)
+ {
+ /* It has a valid numeric extension, prefer this one. */
+ if (*e2 == '.' && e2[1] && isdigit (e2[1]))
+ return -1;
+ /* It has a invalid numeric extension, must prefer the other one. */
+ else
+ return 1;
+ }
+ else
+ return 0;
+}
+
+/* Given the name NAME of a dynamic dependency, find its pathname and add
+ it to the list of libraries. */
+
+static void
+locatelib (name)
+ char *name;
+{
+ static char **l;
+ static int cnt;
+ char buf[MAXPATHLEN];
+ char *p, *q;
+ char **pp;
+
+ if (l == 0)
+ {
+ char *ld_rules;
+ char *ldr = 0;
+ /* counting elements in array, need 1 extra for null */
+ cnt = 1;
+ ld_rules = (char *) (ld_2->ld_rules + code);
+ if (ld_rules)
+ {
+ cnt++;
+ for (; *ld_rules != 0; ld_rules++)
+ if (*ld_rules == ':')
+ cnt++;
+ ld_rules = (char *) (ld_2->ld_rules + code);
+ ldr = (char *) malloc (strlen (ld_rules) + 1);
+ strcpy (ldr, ld_rules);
+ }
+ p = getenv ("LD_LIBRARY_PATH");
+ q = 0;
+ if (p)
+ {
+ cnt++;
+ for (q = p ; *q != 0; q++)
+ if (*q == ':')
+ cnt++;
+ q = (char *) malloc (strlen (p) + 1);
+ strcpy (q, p);
+ }
+ l = (char **) malloc ((cnt + 3) * sizeof (char *));
+ pp = l;
+ if (ldr)
+ {
+ *pp++ = ldr;
+ for (; *ldr != 0; ldr++)
+ if (*ldr == ':')
+ {
+ *ldr++ = 0;
+ *pp++ = ldr;
+ }
+ }
+ if (q)
+ {
+ *pp++ = q;
+ for (; *q != 0; q++)
+ if (*q == ':')
+ {
+ *q++ = 0;
+ *pp++ = q;
+ }
+ }
+ /* built in directories are /lib, /usr/lib, and /usr/local/lib */
+ *pp++ = "/lib";
+ *pp++ = "/usr/lib";
+ *pp++ = "/usr/local/lib";
+ *pp = 0;
+ }
+ libname = name;
+ for (pp = l; *pp != 0 ; pp++)
+ {
+ struct direct **namelist;
+ int entries;
+ if ((entries = scandir (*pp, &namelist, libselect, libcompare)) > 0)
+ {
+ sprintf (buf, "%s/%s", *pp, namelist[entries - 1]->d_name);
+ add_to_list (&libraries, buf);
+ if (debug)
+ fprintf (stderr, "%s\n", buf);
+ break;
+ }
+ }
+ if (*pp == 0)
+ {
+ if (debug)
+ fprintf (stderr, "not found\n");
+ else
+ fatal ("dynamic dependency %s not found", name);
+ }
+}
+
+/* Scan the _DYNAMIC structure of the output file to find shared libraries
+ that it depends upon and any constructors or destructors they contain. */
+
+static void
+scan_libraries (prog_name)
+ char *prog_name;
+{
+ struct exec *header;
+ char *base;
+ struct link_object *lo;
+ char buff[MAXPATHLEN];
+ struct id *list;
+
+ mapfile (prog_name);
+ header = (struct exec *)object;
+ if (N_BADMAG (*header))
+ fatal ("bad magic number in file '%s'", prog_name);
+ if (header->a_dynamic == 0)
+ return;
+
+ code = (char *) (N_TXTOFF (*header) + (long) header);
+ data = (char *) (N_DATOFF (*header) + (long) header);
+ symtab = (struct nlist *) (N_SYMOFF (*header) + (long) header);
+
+ if (header->a_magic == ZMAGIC && header->a_entry == 0x20)
+ {
+ /* shared object */
+ ld = (struct link_dynamic *) (symtab->n_value + code);
+ base = code;
+ }
+ else
+ {
+ /* executable */
+ ld = (struct link_dynamic *) data;
+ base = code-PAGSIZ;
+ }
+
+ if (debug)
+ fprintf (stderr, "dynamic dependencies.\n");
+
+ ld_2 = (struct link_dynamic_2 *) ((long) ld->ld_un.ld_2 + (long)base);
+ for (lo = (struct link_object *) ld_2->ld_need; lo;
+ lo = (struct link_object *) lo->lo_next)
+ {
+ char *name;
+ lo = (struct link_object *) ((long) lo + code);
+ name = (char *) (code + lo->lo_name);
+ if (lo->lo_library)
+ {
+ if (debug)
+ fprintf (stderr, "\t-l%s.%d => ", name, lo->lo_major);
+ sprintf (buff, "lib%s.so.%d.%d", name, lo->lo_major, lo->lo_minor);
+ locatelib (buff);
+ }
+ else
+ {
+ if (debug)
+ fprintf (stderr, "\t%s\n", name);
+ add_to_list (&libraries, name);
+ }
+ }
+
+ if (debug)
+ fprintf (stderr, "\n");
+
+ /* now iterate through the library list adding their symbols to
+ the list. */
+ for (list = libraries.first; list; list = list->next)
+ scan_prog_file (list->name, PASS_LIB);
+}
+
+#else /* SUNOS4_SHARED_LIBRARIES */
+#ifdef LDD_SUFFIX
+
+/* Use the List Dynamic Dependencies program to find shared libraries that
+ the output file depends upon and their initialization/finalization
+ routines, if any. */
+
+static void
+scan_libraries (prog_name)
+ char *prog_name;
+{
+ static struct head libraries; /* list of shared libraries found */
+ struct id *list;
+ void (*int_handler) ();
+ void (*quit_handler) ();
+ char *ldd_argv[4];
+ int pid;
+ int argc = 0;
+ int pipe_fd[2];
+ char buf[1024];
+ FILE *inf;
+
+ /* If we don't have an `ldd', complain. */
+ if (ldd_file_name == 0)
+ {
+ error ("cannot find `ldd'");
+ return;
+ }
+
+ ldd_argv[argc++] = ldd_file_name;
+ ldd_argv[argc++] = prog_name;
+ ldd_argv[argc++] = (char *) 0;
+
+ if (pipe (pipe_fd) < 0)
+ fatal_perror ("pipe");
+
+ inf = fdopen (pipe_fd[0], "r");
+ if (inf == (FILE *) 0)
+ fatal_perror ("fdopen");
+
+ /* Trace if needed. */
+ if (vflag)
+ {
+ char **p_argv;
+ char *str;
+
+ for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++)
+ fprintf (stderr, " %s", str);
+
+ fprintf (stderr, "\n");
+ }
+
+ fflush (stdout);
+ fflush (stderr);
+
+ /* Spawn child ldd on pipe */
+ pid = vfork ();
+ if (pid == -1)
+ {
+#ifdef vfork
+ fatal_perror ("fork");
+#else
+ fatal_perror ("vfork");
+#endif
+ }
+
+ if (pid == 0) /* child context */
+ {
+ /* setup stdout */
+ if (dup2 (pipe_fd[1], 1) < 0)
+ fatal_perror ("dup2 (%d, 1)", pipe_fd[1]);
+
+ if (close (pipe_fd[0]) < 0)
+ fatal_perror ("close (%d)", pipe_fd[0]);
+
+ if (close (pipe_fd[1]) < 0)
+ fatal_perror ("close (%d)", pipe_fd[1]);
+
+ execv (ldd_file_name, ldd_argv);
+ fatal_perror ("executing %s", ldd_file_name);
+ }
+
+ /* Parent context from here on. */
+ int_handler = (void (*) ()) signal (SIGINT, SIG_IGN);
+#ifdef SIGQUIT
+ quit_handler = (void (*) ()) signal (SIGQUIT, SIG_IGN);
+#endif
+
+ if (close (pipe_fd[1]) < 0)
+ fatal_perror ("close (%d)", pipe_fd[1]);
+
+ if (debug)
+ fprintf (stderr, "\nldd output with constructors/destructors.\n");
+
+ /* Read each line of ldd output. */
+ while (fgets (buf, sizeof buf, inf) != (char *) 0)
+ {
+ int ch, ch2;
+ char *name, *end, *p = buf;
+
+ /* Extract names of libraries and add to list. */
+ PARSE_LDD_OUTPUT (p);
+ if (p == 0)
+ continue;
+
+ name = p;
+ if (strncmp (name, "not found", sizeof ("not found") - 1) == 0)
+ fatal ("dynamic dependency %s not found", buf);
+
+ /* Find the end of the symbol name. */
+ for (end = p;
+ (ch2 = *end) != '\0' && ch2 != '\n' && !isspace (ch2) && ch2 != '|';
+ end++)
+ continue;
+ *end = '\0';
+
+ if (access (name, R_OK) == 0)
+ add_to_list (&libraries, name);
+ else
+ fatal ("unable to open dynamic dependency '%s'", buf);
+
+ if (debug)
+ fprintf (stderr, "\t%s\n", buf);
+ }
+ if (debug)
+ fprintf (stderr, "\n");
+
+ if (fclose (inf) != 0)
+ fatal_perror ("fclose of pipe");
+
+ do_wait (ldd_file_name);
+
+ signal (SIGINT, int_handler);
+#ifdef SIGQUIT
signal (SIGQUIT, quit_handler);
+#endif
+
+ /* now iterate through the library list adding their symbols to
+ the list. */
+ for (list = libraries.first; list; list = list->next)
+ scan_prog_file (list->name, PASS_LIB);
}
+#endif /* LDD_SUFFIX */
+#endif /* SUNOS4_SHARED_LIBRARIES */
+
#endif /* OBJECT_FORMAT_NONE */
\f
LDFILE *ldptr = NULL;
int sym_index, sym_count;
- if (which_pass != PASS_FIRST)
+ if (which_pass != PASS_FIRST && which_pass != PASS_OBJ)
return;
if ((ldptr = ldopen (prog_name, ldptr)) == NULL)
fatal ("%s: can't open as COFF file", prog_name);
- if (!ISCOFF (HEADER(ldptr).f_magic))
+ if (!MY_ISCOFF (HEADER (ldptr).f_magic))
fatal ("%s: not a COFF file", prog_name);
if (GCC_CHECK_HDR (ldptr))
if ((name = ldgetname (ldptr, &symbol)) == NULL)
continue; /* should never happen */
-#ifdef _AIX
- /* All AIX function names begin with a dot. */
- if (*name++ != '.')
- continue;
+#ifdef XCOFF_DEBUGGING_INFO
+ /* All AIX function names have a duplicate entry beginning
+ with a dot. */
+ if (*name == '.')
+ ++name;
#endif
switch (is_ctor_dtor (name))
{
case 1:
add_to_list (&constructors, name);
+ if (which_pass == PASS_OBJ)
+ add_to_list (&exports, name);
break;
case 2:
add_to_list (&destructors, name);
+ if (which_pass == PASS_OBJ)
+ add_to_list (&exports, name);
break;
default: /* not a constructor or destructor */
(void) ldclose(ldptr);
}
+#ifdef XCOFF_SCAN_LIBS
+/* Scan imported AIX libraries for GCC static ctors and dtors.
+ FIXME: it is possible to link an executable without the actual import
+ library by using an "import file" - a text file listing symbols
+ exported by a library. To support this, we would have to scan
+ import files as well as actual shared binaries to find GCC ctors.
+ TODO: use memory mapping instead of 'ld' routines, files are already
+ memory mapped, but we could eliminate the extra in-memory copies.
+ Is it worth the effort? */
+
+static void
+scan_libraries (prog_name)
+ char *prog_name;
+{
+ LDFILE *ldptr;
+ SCNHDR ldsh;
+ static struct path_prefix libpath; /* we should only do this once */
+
+ if ((ldptr = ldopen (prog_name, ldptr)) == NULL)
+ fatal ("%s: can't open as COFF file", prog_name);
+
+ if (!MY_ISCOFF (HEADER (ldptr).f_magic))
+ fatal ("%s: not a COFF file", prog_name);
+
+ /* find and read loader section */
+ if (ldnshread (ldptr, _LOADER, &ldsh))
+ {
+ LDHDR ldh;
+ char *impbuf;
+ int entry;
+
+ FSEEK (ldptr, ldsh.s_scnptr, BEGINNING);
+ FREAD (&ldh, sizeof (ldh), 1, ldptr);
+ /* read import library list */
+ impbuf = alloca (ldh.l_istlen);
+ FSEEK (ldptr, ldh.l_impoff + ldsh.s_scnptr, BEGINNING);
+ FREAD (impbuf, ldh.l_istlen, 1, ldptr);
+
+ if (debug)
+ fprintf (stderr, "LIBPATH=%s\n", impbuf);
+ prefix_from_string (impbuf, &libpath);
+
+ /* skip LIBPATH and empty base and member fields */
+ impbuf += strlen (impbuf) + 3;
+ for (entry = 1; entry < ldh.l_nimpid; ++entry)
+ {
+ char *impath = impbuf;
+ char *implib = impath + strlen (impath) + 1;
+ char *impmem = implib + strlen (implib) + 1;
+ char *soname = NULL;
+ char *trial;
+ int pathlen;
+ LDFILE *libptr = NULL;
+ struct prefix_list *pl;
+ ARCHDR ah;
+
+ impbuf = impmem + strlen (impmem) + 1;
+ if (debug)
+ fprintf (stderr, "PATH+BASE=%s%s\n", impath, implib);
+ /* Skip AIX kernel exports */
+ if (*impath == '/' && *(impath+1) == '\0'
+ && strcmp (implib, "unix") == 0)
+ continue;
+ pathlen = strlen (impath);
+ trial = alloca (MAX (pathlen + 1, libpath.max_len)
+ + strlen (implib) + 1);
+ if (*impath)
+ {
+ strcpy (trial, impath);
+ if (impath[pathlen - 1] != '/')
+ trial[pathlen++] = '/';
+ strcpy (trial + pathlen, implib);
+ if (access (trial, R_OK) == 0)
+ soname = trial;
+ }
+ else
+ for (pl = libpath.plist; pl; pl = pl->next)
+ {
+ strcpy (trial, pl->prefix);
+ strcat (trial, implib);
+ if (access (trial, R_OK) == 0)
+ {
+ soname = trial;
+ break;
+ }
+ }
+
+ if (! soname)
+ fatal ("%s: library not found", implib);
+ if (debug)
+ if (*impmem)
+ fprintf (stderr, "%s (%s)\n", soname, impmem);
+ else
+ fprintf (stderr, "%s\n", soname);
+
+ do
+ {
+ /* scan imported shared objects for GCC GLOBAL ctors */
+ short type;
+ if ((libptr = ldopen (soname, libptr)) == NULL)
+ fatal ("%s: can't open import library", soname);
+ if (TYPE (libptr) == ARTYPE)
+ {
+ LDFILE *memptr;
+ if (! *impmem)
+ fatal ("%s: no archive member specified", soname);
+ ldahread (libptr, &ah);
+ if (strcmp (ah.ar_name, impmem))
+ continue;
+ }
+ type = HEADER (libptr).f_magic;
+ if (HEADER (libptr).f_flags & F_SHROBJ)
+ {
+ SCNHDR soldsh;
+ LDHDR soldh;
+ long symcnt, i;
+ char *ldstrings;
+ LDSYM *lsyms;
+ if (!ldnshread (libptr, _LOADER, &soldsh))
+ fatal ("%s: not an import library", soname);
+ FSEEK (libptr, soldsh.s_scnptr, BEGINNING);
+ if (FREAD (&soldh, sizeof (soldh), 1, libptr) != 1)
+ fatal ("%s: can't read loader section", soname);
+ /*fprintf (stderr, "\tscanning %s\n", soname);*/
+ symcnt = soldh.l_nsyms;
+ lsyms = (LDSYM *) alloca (symcnt * sizeof (*lsyms));
+ symcnt = FREAD (lsyms, sizeof (*lsyms), symcnt, libptr);
+ ldstrings = alloca (soldh.l_stlen);
+ FSEEK (libptr, soldsh.s_scnptr+soldh.l_stoff, BEGINNING);
+ FREAD (ldstrings, soldh.l_stlen, 1, libptr);
+ for (i = 0; i < symcnt; ++i)
+ {
+ LDSYM *l = lsyms + i;
+ if (LDR_EXPORT (*l))
+ {
+ char *expname = 0;
+ if (l->l_zeroes)
+ expname = l->l_name;
+ else if (l->l_offset < soldh.l_stlen)
+ expname = ldstrings + l->l_offset;
+ switch (is_ctor_dtor (expname))
+ {
+ case 3:
+ if (debug)
+ fprintf (stderr, "\t%s\n", expname);
+ add_to_list (&constructors, expname);
+ break;
+
+ case 4:
+ add_to_list (&destructors, expname);
+ break;
+
+ default: /* not a constructor or destructor */
+ continue;
+ }
+ }
+ }
+ }
+ else
+ fprintf (stderr, "%s: type = %04X flags = %04X\n",
+ ah.ar_name, type, HEADER (libptr).f_flags);
+ }
+ while (ldclose (libptr) == FAILURE);
+ /* printf (stderr, "closed %s\n", soname); */
+ }
+ }
+}
+#endif /* XCOFF_SCAN_LIBS */
+
#endif /* OBJECT_FORMAT_COFF */
\f
};
extern int decode_mach_o_hdr ();
-
extern int encode_mach_o_hdr ();
-static void bad_header ();
-
-static void print_header ();
-
-static void print_load_command ();
-
-static void add_func_table ();
-
-static struct file_info *read_file ();
-
-static void end_file ();
-
+static void add_func_table PROTO((mo_header_t *, load_all_t *,
+ symbol_info_t *, int));
+static void print_header PROTO((mo_header_t *));
+static void print_load_command PROTO((load_union_t *, size_t, int));
+static void bad_header PROTO((int));
+static struct file_info *read_file PROTO((char *, int, int));
+static void end_file PROTO((struct file_info *));
\f
/* OSF/rose specific version to scan the name list of the loaded
program for the symbols g++ uses for static constructors and
if (rw)
{
load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size);
- bcopy ((generic *)load_hdr, (generic *)ptr, load_hdr->hdr.ldci_cmd_size);
+ bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size);
load_hdr = ptr;
/* null out old command map, because we will rewrite at the end. */
continue;
str_sect = load_array[load_hdr->sym.symc_strings_section].section;
- if (str_sect == (char *)0)
+ if (str_sect == (char *) 0)
fatal ("string section missing");
- if (load_cmd->section == (char *)0)
+ if (load_cmd->section == (char *) 0)
fatal ("section pointer missing");
num_syms = load_hdr->sym.symc_nentries;
if (rw)
{
- char *n = name;
- while (*n == '_')
- ++n;
- if (*n != 'm' || (n - name) < 2 || strcmp (n, "main"))
+ char *n = name + strlen (name) - strlen (NAME__MAIN);
+
+ if ((n - name) < 0 || strcmp (n, NAME__MAIN))
continue;
+ while (n != name)
+ if (*--n != '_')
+ continue;
main_sym = sym;
}
do anything, since in the current version, you cannot do mallocs
and such in the constructors. */
- if (main_sym != (symbol_info_t *)0
+ if (main_sym != (symbol_info_t *) 0
&& ((hdr.moh_flags & MOH_EXECABLE_F) == 0))
add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION);
if (debug)
print_load_command (load_hdr, offset, i);
- bcopy ((generic *)load_hdr, (generic *)(obj + offset), size);
+ bcopy ((char *) load_hdr, (char *) (obj + offset), size);
offset += size;
}
}
load_cmd = &load_array[load_index];
load_cmd->load = ptr;
- load_cmd->section = (char *)0;
+ load_cmd->section = (char *) 0;
/* Fill in func table load command. */
ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE;
int number;
{
mo_long_t type = load_hdr->hdr.ldci_cmd_type;
- char *type_str = (char *)0;
+ char *type_str = (char *) 0;
switch (type)
{
(long) load_hdr->hdr.ldci_section_off,
(long) load_hdr->hdr.ldci_section_len);
- if (type_str == (char *)0)
+ if (type_str == (char *) 0)
fprintf (stderr, ", ty: unknown (%ld)\n", (long) type);
else if (type != LDC_REGION)
bad_header (status)
int status;
{
- char *msg = (char *)0;
+ char *msg = (char *) 0;
switch (status)
{
case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break;
}
- if (msg == (char *)0)
+ if (msg == (char *) 0)
fatal ("unknown {de,en}code_mach_o_hdr return value %d", status);
else
fatal ("%s", msg);
page_size = sysconf (_SC_PAGE_SIZE);
p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size;
- p->start = mmap ((caddr_t)0,
+ p->start = mmap ((caddr_t) 0,
(rw) ? p->rounded_size : p->size,
(rw) ? (PROT_READ | PROT_WRITE) : PROT_READ,
MAP_FILE | MAP_VARIABLE | MAP_SHARED,
fd,
0L);
- if (p->start != (char *)0 && p->start != (char *)-1)
+ if (p->start != (char *) 0 && p->start != (char *) -1)
p->use_mmap = 1;
else
return p;
}
-
\f
/* Do anything necessary to write a file back from memory. */
len = write (ptr->fd, ptr->start, ptr->size);
if (len < 0)
- fatal_perror ("read %s", ptr->name);
+ fatal_perror ("write %s", ptr->name);
if (len != ptr->size)
fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name);
}
- free ((generic *)ptr->start);
+ free (ptr->start);
}
- free ((generic *)ptr);
+ free (ptr);
}
#endif /* OBJECT_FORMAT_ROSE */
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