--- /dev/null
+/* Collect static initialization info into data structures
+ that can be traversed by C++ initialization and finalization
+ routines.
+
+ Copyright (C) 1992 Free Software Foundation, Inc.
+ Contributed by Chris Smith (csmith@convex.com).
+ Heavily modified by Michael Meissner (meissner@osf.org),
+ Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+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. */
+
+
+/* Build tables of static constructors and destructors and run ld. */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include "gstddef.h"
+#include <errno.h>
+#include <signal.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#define COLLECT
+
+#include "config.h"
+
+#ifndef __STDC__
+#include "gvarargs.h"
+#define generic char
+#define PROTO(x) ()
+#define const
+
+#else
+#include "stdarg.h"
+#define generic void
+#define PROTO(x) x
+#endif
+
+#ifdef OBJECT_FORMAT_ROSE
+
+#ifdef _OSF_SOURCE
+#define USE_MMAP
+#endif
+
+#ifdef USE_MMAP
+#include <sys/mman.h>
+#endif
+
+#include <unistd.h>
+#include <mach_o_format.h>
+#include <mach_o_header.h>
+#include <mach_o_vals.h>
+#include <mach_o_types.h>
+#endif /* OBJECT_FORMAT_ROSE */
+
+/* Default flags to pass to nm. */
+#ifndef NM_FLAGS
+#define NM_FLAGS "-p"
+#endif
+
+#ifdef USG
+#define vfork fork
+#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 "./"
+#endif
+#endif
+
+\f
+/* Linked lists of constructor and destructor names. */
+
+struct id
+{
+ struct id *next;
+ int sequence;
+ char name[1];
+};
+
+struct head
+{
+ struct id *first;
+ struct id *last;
+ int number;
+};
+
+/* Enumeration giving which pass this is for scanning the program file. */
+
+enum pass {
+ PASS_FIRST, /* without constructors */
+ PASS_SECOND /* with constructors linked in */
+};
+
+extern char *sys_siglist[];
+extern char *version_string;
+
+static int vflag; /* true if -v */
+static int rflag; /* true if -r */
+
+static int debug; /* true if -debug */
+
+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 *nm_file_name; /* pathname of nm */
+
+static struct head constructors; /* list of constructors found */
+static struct head destructors; /* list of destructors found */
+
+extern char *getenv PROTO(( const char * ));
+extern char *mktemp PROTO(( char * ));
+extern int vfork PROTO(( void ));
+static void add_to_list PROTO(( struct head *headp, char *name ));
+static void scan_prog_file PROTO(( char *, enum pass ));
+static void fork_execute PROTO(( char *, char **argv ));
+static void do_wait PROTO(( char * ));
+static void write_c_file PROTO(( FILE *, char * ));
+static void my_exit PROTO(( int ));
+static void handler PROTO(( int ));
+static void maybe_unlink PROTO(( char * ));
+static void choose_temp_base PROTO(( void ));
+
+generic *xcalloc PROTO(( size_t, size_t ));
+generic *xmalloc PROTO(( size_t ));
+
+\f
+
+#if !defined(HAVE_STRERROR) && !defined(_OSF_SOURCE)
+
+char *strerror (e)
+ int e;
+{
+ extern char *sys_errlist[];
+ extern int sys_nerr;
+ static char buffer[30];
+
+ if (!e)
+ return "";
+
+ if (e > 0 && e < sys_nerr)
+ return sys_errlist[e];
+
+ sprintf (buffer, "Unknown error %d", e);
+ return buffer;
+}
+
+#endif
+
+\f
+/* Delete tempfiles and exit function. */
+
+static void
+my_exit (status)
+ int status;
+{
+ if (c_file[0])
+ maybe_unlink (c_file);
+
+ if (o_file[0])
+ maybe_unlink (o_file);
+
+ exit (status);
+}
+
+\f
+#ifndef __STDC__
+
+/* Die when sys call fails. */
+
+/*VARARGS*/
+static void
+fatal_perror (va_alist)
+{
+ char *string;
+ va_list vptr;
+ int e = errno;
+
+ va_start (vptr);
+ string = va_arg (vptr, char *);
+ fprintf (stderr, "collect: ");
+ vfprintf (stderr, string, vptr);
+ fprintf (stderr, ": %s\n", strerror (e));
+ va_end (vptr);
+ my_exit (1);
+}
+
+/* Just die. */
+
+/*VARARGS*/
+static void
+fatal (va_alist)
+{
+ char *string;
+ va_list vptr;
+
+ va_start (vptr);
+ string = va_arg (vptr, char *);
+ fprintf (stderr, "collect: ");
+ vfprintf (stderr, string, vptr);
+ fprintf (stderr, "\n");
+ va_end (vptr);
+ my_exit (1);
+}
+
+/* Write error message. */
+
+/*VARARGS*/
+static void
+error (va_alist)
+{
+ char *string;
+ va_list vptr;
+
+ va_start (vptr);
+ string = va_arg (vptr, char *);
+ fprintf (stderr, "collect: ");
+ vfprintf (stderr, string, vptr);
+ fprintf (stderr, "\n");
+ va_end (vptr);
+}
+
+#else
+
+static void
+fatal_perror (char *string, ...)
+{
+ va_list vptr;
+ int e = errno;
+
+ va_start (vptr, string);
+ fprintf (stderr, "collect: ");
+ vfprintf (stderr, string, vptr);
+ fprintf (stderr, ": %s\n", strerror (e));
+ va_end (vptr);
+ my_exit (1);
+}
+
+/* Just die. */
+
+static void
+fatal (char *string, ...)
+{
+ va_list vptr;
+
+ va_start (vptr, string);
+ fprintf (stderr, "collect: ");
+ vfprintf (stderr, string, vptr);
+ fprintf (stderr, "\n");
+ va_end (vptr);
+ my_exit (1);
+}
+
+/* Write error message. */
+
+static void
+error (char *string, ...)
+{
+ va_list vptr;
+
+ va_start (vptr, string);
+ fprintf (stderr, "collect: ");
+ vfprintf (stderr, string, vptr);
+ fprintf (stderr, "\n");
+ va_end (vptr);
+}
+#endif
+
+\f
+/* In case obstack is linked in, and abort is defined to fancy_abort,
+ provide a default entry. */
+
+void
+fancy_abort ()
+{
+ fatal ("internal error");
+}
+
+\f
+static void
+handler (signo)
+ int signo;
+{
+ if (c_file[0])
+ maybe_unlink (c_file);
+
+ if (o_file[0])
+ maybe_unlink (o_file);
+
+ signal (signo, SIG_DFL);
+
+ fatal ("Caught signal %d [%s]", signo, sys_siglist[signo]);
+ kill (getpid (), signo);
+}
+
+\f
+generic *
+xcalloc (size1, size2)
+ size_t size1, size2;
+{
+ generic *ptr = calloc (size1, size2);
+ if (ptr)
+ return ptr;
+
+ fatal ("Out of memory.");
+ return (generic *)0;
+}
+
+generic *
+xmalloc (size)
+ size_t size;
+{
+ generic *ptr = malloc (size);
+ if (ptr)
+ return ptr;
+
+ fatal ("Out of memory.");
+ return (generic *)0;
+}
+
+\f
+/* Compute a string to use as the base of all temporary file names.
+ It is substituted for %g. */
+
+static void
+choose_temp_base PROTO((void))
+{
+ char *base = getenv ("TMPDIR");
+ int len;
+
+ if (base == (char *)0)
+ {
+#ifdef P_tmpdir
+ if (access (P_tmpdir, R_OK | W_OK) == 0)
+ base = P_tmpdir;
+#endif
+ if (base == (char *)0)
+ {
+ if (access ("/usr/tmp", R_OK | W_OK) == 0)
+ base = "/usr/tmp/";
+ else
+ base = "/tmp/";
+ }
+ }
+
+ 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");
+
+ mktemp (temp_filename);
+ temp_filename_length = strlen (temp_filename);
+}
+
+\f
+/* Main program. */
+
+int
+main (argc, argv)
+ int argc;
+ char *argv[];
+{
+ char *outfile = "a.out";
+ char *arg;
+ FILE *outf;
+ char *ld_file_name;
+ char *c_file_name;
+ char *B_option;
+ char *p;
+ char *prefix;
+ char **c_argv = (char **) xcalloc (sizeof (char *), argc+7);
+ char **c_ptr = c_argv;
+ char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+2);
+ char **ld1 = ld1_argv;
+ char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+5);
+ char **ld2 = ld2_argv;
+ int first_file;
+ int len;
+ int clen;
+
+#ifdef DEBUG
+ debug = 1;
+ vflag = 1;
+#endif
+
+ 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 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;
+#endif
+
+#ifdef MD_EXEC_PREFIX
+ else if (access (MD_EXEC_PREFIX, X_OK) == 0)
+ prefix = MD_EXEC_PREFIX;
+#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);
+
+#ifdef STANDARD_BIN_PREFIX
+ if (clen < sizeof (STANDARD_BIN_PREFIX) - 1)
+ clen = sizeof (STANDARD_BIN_PREFIX) - 1;
+#endif
+
+ ld_file_name = xcalloc (len + sizeof ("real-ld"), 1);
+ c_file_name = xcalloc (clen + sizeof ("gcc"), 1);
+ nm_file_name = xcalloc (len + sizeof ("gnm"), 1);
+ B_option = xcalloc (len + sizeof ("-B"), 1);
+
+ memcpy (ld_file_name, prefix, 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);
+#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";
+#endif
+ }
+ }
+
+ memcpy (c_file_name, prefix, len);
+ strcpy (c_file_name + len, "gcc");
+ if (access (c_file_name, X_OK) < 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");
+ }
+ }
+ }
+
+ memcpy (nm_file_name, prefix, 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";
+#endif
+ }
+ }
+
+ strcpy (B_option, "-B");
+ strcpy (B_option + sizeof ("-B") - 1, prefix);
+
+ *ld1++ = *ld2++ = "ld";
+
+ /* Make temp file names. */
+ choose_temp_base ();
+ c_file = xcalloc (temp_filename_length + sizeof (".c"), 1);
+ o_file = xcalloc (temp_filename_length + sizeof (".o"), 1);
+ sprintf (c_file, "%s.c", temp_filename);
+ sprintf (o_file, "%s.o", temp_filename);
+ *c_ptr++ = "gcc";
+ *c_ptr++ = "-c";
+ *c_ptr++ = "-o";
+ *c_ptr++ = o_file;
+
+ /* 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)
+ {
+ *ld1++ = *ld2++ = arg;
+
+ if (arg[0] == '-')
+ switch (arg[1])
+ {
+ case 'd':
+ if (!strcmp (arg, "-debug"))
+ {
+ debug = 1;
+ vflag = 1;
+ ld1--;
+ ld2--;
+ }
+ break;
+
+ /* pass -f<xxx>, -B<xxx>, -b<xxx>, -V<xxx>, and -m<xxx>
+ options to gcc. This allows options to be passed
+ that affect search rules, and the size of pointers. */
+ case 'b':
+ case 'B':
+ case 'f':
+ case 'm':
+ case 'V':
+ if (arg[1] != '\0')
+ {
+ ld1--;
+ ld2--;
+ *c_ptr++ = arg;
+ }
+ break;
+
+ case 'o':
+ outfile = (arg[2] == '\0') ? argv[1] : &arg[2];
+ break;
+
+ case 'r':
+ if (arg[2] == '\0')
+ rflag = 1;
+ break;
+
+ case 'v':
+ if (arg[2] == '\0')
+ vflag = 1;
+ break;
+ }
+
+ else if (first_file
+ && (p = strrchr (arg, '.')) != (char *)0
+ && strcmp (p, ".o") == 0)
+ {
+ first_file = 0;
+ *ld2++ = o_file;
+ }
+ }
+
+ *c_ptr++ = B_option;
+ *c_ptr++ = c_file;
+ *c_ptr = *ld1 = *ld2 = (char *)0;
+
+ if (vflag)
+ {
+ fprintf (stderr, "GNU COLLECT2 version %s", version_string);
+#ifdef TARGET_VERSION
+ TARGET_VERSION;
+#endif
+ fprintf (stderr, "\n");
+ }
+
+ if (debug)
+ {
+ 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, "B_option = %s\n", B_option);
+ fprintf (stderr, "c_file = %s\n", c_file);
+ fprintf (stderr, "o_file = %s\n", o_file);
+ }
+
+ /* 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. */
+
+ fork_execute (ld_file_name, ld1_argv);
+
+ /* If -r, don't build the constructor or destructor list, just return now. */
+ if (rflag)
+ return 0;
+
+ scan_prog_file (outfile, PASS_FIRST);
+
+ if (debug)
+ {
+ fprintf (stderr, "%d constructor(s) found\n", constructors.number);
+ fprintf (stderr, "%d destructor(s) found\n", destructors.number);
+ }
+
+ if (constructors.number == 0 && destructors.number == 0)
+ return 0;
+
+ outf = fopen (c_file, "w");
+ if (outf == (FILE *)0)
+ fatal_perror ("Can't write %s", c_file);
+
+ write_c_file (outf, c_file);
+
+ if (fclose (outf))
+ fatal_perror ("Can't close %s", c_file);
+
+ if (debug)
+ {
+ fprintf (stderr, "\n========== outfile = %s, c_file = %s\n", outfile, c_file);
+ write_c_file (stderr, "stderr");
+ fprintf (stderr, "========== end of c_file\n\n");
+ }
+
+ /* Assemble the constructor and destructor tables.
+ Link the tables in with the rest of the program. */
+
+ fork_execute (c_file_name, c_argv);
+ fork_execute (ld_file_name, 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);
+
+ maybe_unlink (c_file);
+ maybe_unlink (o_file);
+ return 0;
+}
+
+\f
+/* Wait for a process to finish, and exit if a non-zero status is found. */
+
+static void
+do_wait (prog)
+ char *prog;
+{
+ int status;
+
+ wait (&status);
+ if (status)
+ {
+ int sig = WTERMSIG (status);
+ int ret;
+
+ if (sig != -1 && sig != 0)
+ {
+ error ("%s terminated with signal %d [%s]%s",
+ prog,
+ sig,
+ sys_siglist[sig],
+ (status & 0200) ? ", core dumped" : "");
+
+ my_exit (127);
+ }
+
+ ret = WEXITSTATUS (status);
+ if (ret != -1 && ret != 0)
+ {
+ error ("%s returned %d exit status", prog, ret);
+ my_exit (ret);
+ }
+ }
+}
+
+\f
+/* Fork and execute a program, and wait for the reply. */
+
+static void
+fork_execute (prog, argv)
+ char *prog;
+ char **argv;
+{
+ int pid;
+ void (*int_handler) PROTO((int));
+ void (*quit_handler) PROTO((int));
+
+ if (vflag || debug)
+ {
+ char **p_argv;
+ char *str;
+
+ fprintf (stderr, "%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);
+
+ pid = vfork ();
+ if (pid == -1)
+ fatal_perror ("vfork");
+
+ if (pid == 0) /* child context */
+ {
+ execvp (prog, argv);
+ fatal_perror ("Execute %s", prog);
+ }
+
+ int_handler = (void (*)PROTO((int)))signal (SIGINT, SIG_IGN);
+ quit_handler = (void (*)PROTO((int)))signal (SIGQUIT, SIG_IGN);
+
+ do_wait (prog);
+
+ signal (SIGINT, int_handler);
+ signal (SIGQUIT, quit_handler);
+}
+
+\f
+/* Unlink a file unless we are debugging. */
+
+static void
+maybe_unlink (file)
+ char *file;
+{
+ if (!debug)
+ unlink (file);
+ else
+ fprintf (stderr, "[Leaving %s]\n", file);
+}
+
+\f
+/* Add a name to a linked list. */
+
+static void
+add_to_list (head_ptr, name)
+ struct head *head_ptr;
+ char *name;
+{
+ struct id *newid = (struct id *) xcalloc (sizeof (*newid) + strlen (name), 1);
+ static long sequence_number = 0;
+ newid->sequence = ++sequence_number;
+ strcpy (newid->name, name);
+
+ if (head_ptr->first)
+ head_ptr->last->next = newid;
+ else
+ head_ptr->first = newid;
+
+ head_ptr->last = newid;
+ head_ptr->number++;
+}
+
+/* Write: `prefix', the names on list LIST, `suffix'. */
+
+static void
+write_list (stream, prefix, list)
+ FILE *stream;
+ char *prefix;
+ struct id *list;
+{
+ while (list)
+ {
+ fprintf (stream, "%sx%d,\n", prefix, list->sequence);
+ list = list->next;
+ }
+}
+
+static void
+write_list_with_asm (stream, prefix, list)
+ FILE *stream;
+ char *prefix;
+ struct id *list;
+{
+ while (list)
+ {
+ fprintf (stream, "%sx%d asm (\"%s\");\n",
+ prefix, list->sequence, list->name);
+ list = list->next;
+ }
+}
+
+/* Write the constructor/destructor tables. */
+
+static void
+write_c_file (stream, name)
+ FILE *stream;
+ char *name;
+{
+ /* Write the tables as C code */
+
+ fprintf (stream, "typedef void entry_pt();\n\n");
+
+ write_list_with_asm (stream, "entry_pt ", constructors);
+
+ fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n");
+ fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number);
+ write_list (stream, "\t", constructors);
+ fprintf (stream, "\t0\n};\n\n");
+
+ write_list_with_asm (stream, "entry_pt ", destructors);
+
+ fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n");
+ fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number);
+ write_list (stream, "\t", destructors);
+ fprintf (stream, "\t0\n};\n\n");
+
+ fprintf (stream, "extern entry_pt __main;\n");
+ fprintf (stream, "entry_pt *__main_reference = __main;\n\n");
+}
+
+\f
+#ifndef OBJECT_FORMAT_ROSE
+
+/* OSF/rose specific version to scan the name list of the loaded
+ program for the symbols g++ uses for static constructors and
+ destructors.
+
+ The constructor table begins at __CTOR_LIST__ and contains a count
+ of the number of pointers (or -1 if the constructors are built in a
+ separate section by the linker), followed by the pointers to the
+ constructor functions, terminated with a null pointer. The
+ destructor table has the same format, and begins at __DTOR_LIST__. */
+
+static void
+scan_prog_file (prog_name, which_pass)
+ char *prog_name;
+ enum pass which_pass;
+{
+ void (*int_handler) PROTO((int));
+ void (*quit_handler) PROTO((int));
+ char *nm_argv[4];
+ int pid;
+ int argc = 0;
+ int pipe_fd[2];
+ char *p, buf[1024];
+ FILE *inf;
+
+ if (which_pass != PASS_FIRST)
+ return;
+
+ nm_argv[ argc++ ] = "nm";
+ if (NM_FLAGS[0] != '\0')
+ nm_argv[ argc++ ] = NM_FLAGS;
+
+ nm_argv[ argc++ ] = prog_name;
+ nm_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;
+
+ fprintf (stderr, "%s", nm_file_name);
+ for (p_argv = &nm_argv[1]; (str = *p_argv) != (char *)0; p_argv++)
+ fprintf (stderr, " %s", str);
+
+ fprintf (stderr, "\n");
+ }
+
+ fflush (stdout);
+ fflush (stderr);
+
+ /* Spawn child nm on pipe */
+ pid = vfork ();
+ if (pid == -1)
+ fatal_perror ("vfork");
+
+ 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 (nm_file_name, nm_argv);
+ fatal_perror ("Execute %s", nm_file_name);
+ }
+
+ /* Parent context from here on. */
+ int_handler = (void (*)PROTO((int)))signal (SIGINT, SIG_IGN);
+ quit_handler = (void (*)PROTO((int)))signal (SIGQUIT, SIG_IGN);
+
+ if (close (pipe_fd[1]) < 0)
+ fatal_perror ("Close (%d)", pipe_fd[1]);
+
+ if (debug)
+ fprintf (stderr, "\nnm output with constructors/destructors.\n");
+
+ /* Read each line of nm output. */
+ while (fgets (buf, sizeof buf, inf) != (char *)0)
+ {
+ int ch, ch2;
+ char *start;
+ char *end;
+
+ /* If it contains a constructor or destructor name, add the name
+ to the appropriate list. */
+
+ for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++)
+ ;
+
+ if (ch == '\0' || ch == '\n')
+ continue;
+
+ start = p;
+ while ((ch = *p) == '_') /* skip any extra '_' inserted */
+ p++;
+
+ for (end = p; (ch2 = *end) != '\0' && !isspace (ch2); end++)
+ ;
+
+ *end = '\0';
+ if (ch == 'G')
+ {
+ if (! strncmp (p, "GLOBAL_$I$", 10))
+ add_to_list (&constructors, p-1);
+
+ else if (! strncmp (p, "GLOBAL_$D$", 10))
+ add_to_list (&destructors, p-1);
+
+ else /* not a constructor or destructor */
+ continue;
+ }
+
+ else if (ch == 's' && (p - start) >= 2)
+ {
+ if (! strncmp (p, "sti__", 5))
+ add_to_list (&constructors, p-2);
+
+ else if (! strncmp (p, "std__", 5))
+ add_to_list (&destructors, p-2);
+
+ else /* not a constructor or destructor */
+ continue;
+ }
+
+ else
+ continue;
+
+ if (debug)
+ fprintf (stderr, "\t%s\n", buf);
+ }
+
+ if (debug)
+ fprintf (stderr, "\n");
+
+ if (fclose (inf) != 0)
+ fatal_perror ("fclose of pipe");
+
+ do_wait (nm_file_name);
+
+ signal (SIGINT, int_handler);
+ signal (SIGQUIT, quit_handler);
+}
+
+#endif /* !OBJECT_FORMAT_ROSE */
+
+\f
+/*
+ * OSF/rose specific stuff.
+ */
+
+#ifdef OBJECT_FORMAT_ROSE
+
+/* Union of the various load commands */
+
+typedef union load_union
+{
+ ldc_header_t hdr; /* common header */
+ load_cmd_map_command_t map; /* map indexing other load cmds */
+ interpreter_command_t iprtr; /* interpereter pathname */
+ strings_command_t str; /* load commands strings section */
+ region_command_t region; /* region load command */
+ reloc_command_t reloc; /* relocation section */
+ package_command_t pkg; /* package load command */
+ symbols_command_t sym; /* symbol sections */
+ entry_command_t ent; /* program start section */
+ gen_info_command_t info; /* object information */
+ func_table_command_t func; /* function constructors/destructors */
+} load_union_t;
+
+/* Structure to point to load command and data section in memory. */
+
+typedef struct load_all
+{
+ load_union_t *load; /* load command */
+ char *section; /* pointer to section */
+} load_all_t;
+
+/* Structure to contain information about a file mapped into memory. */
+
+struct file_info
+{
+ char *start; /* start of map */
+ char *name; /* filename */
+ long size; /* size of the file */
+ long rounded_size; /* size rounded to page boundary */
+ int fd; /* file descriptor */
+ int rw; /* != 0 if opened read/write */
+ int use_mmap; /* != 0 if mmap'ed */
+};
+
+extern int decode_mach_o_hdr PROTO(( void *in_bufp,
+ size_t in_bufsize,
+ unsigned long hdr_version,
+ mo_header_t *headerp ));
+
+extern int encode_mach_o_hdr PROTO(( mo_header_t *headerp,
+ void *out_bufp,
+ size_t out_bufsize ));
+
+static void bad_header PROTO(( int status ));
+
+static void print_header PROTO(( mo_header_t *hdr_ptr ));
+
+static void print_load_command PROTO(( load_union_t *load_hdr,
+ size_t offset,
+ int number ));
+
+static void add_func_table PROTO(( mo_header_t *hdr_p,
+ load_all_t *load_array,
+ symbol_info_t *sym,
+ int type ));
+
+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
+ destructors.
+
+ The constructor table begins at __CTOR_LIST__ and contains a count
+ of the number of pointers (or -1 if the constructors are built in a
+ separate section by the linker), followed by the pointers to the
+ constructor functions, terminated with a null pointer. The
+ destructor table has the same format, and begins at __DTOR_LIST__. */
+
+static void
+scan_prog_file (prog_name, which_pass)
+ char *prog_name;
+ enum pass which_pass;
+{
+ char *obj;
+ mo_header_t hdr;
+ load_all_t *load_array;
+ load_all_t *load_end;
+ load_all_t *load_cmd;
+ int symbol_load_cmds;
+ off_t offset;
+ int i;
+ int num_syms;
+ int status;
+ char *str_sect;
+ struct file_info *obj_file;
+ int prog_fd;
+ mo_lcid_t cmd_strings = -1;
+ symbol_info_t *main_sym = 0;
+ int rw = (which_pass != PASS_FIRST);
+
+ prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY);
+ if (prog_fd < 0)
+ fatal_perror ("Can't read %s", prog_name);
+
+ obj_file = read_file (prog_name, prog_fd, rw);
+ obj = obj_file->start;
+
+ status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr);
+ if (status != MO_HDR_CONV_SUCCESS)
+ bad_header (status);
+
+
+ /* Do some basic sanity checks. Note we explicitly use the big endian magic number,
+ since the hardware will automatically swap bytes for us on loading little endian
+ integers. */
+
+#ifndef CROSS_COMPILE
+ if (hdr.moh_magic != MOH_MAGIC_MSB
+ || hdr.moh_header_version != MOH_HEADER_VERSION
+ || hdr.moh_byte_order != OUR_BYTE_ORDER
+ || hdr.moh_data_rep_id != OUR_DATA_REP_ID
+ || hdr.moh_cpu_type != OUR_CPU_TYPE
+ || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE
+ || hdr.moh_vendor_type != OUR_VENDOR_TYPE)
+ {
+ fatal ("incompatibilities exist between object file & expected values.");
+ }
+#endif
+
+ if (debug)
+ print_header (&hdr);
+
+ offset = hdr.moh_first_cmd_off;
+ load_end = load_array
+ = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2);
+
+ /* Build array of load commands, calculating the offsets */
+ for (i = 0; i < hdr.moh_n_load_cmds; i++)
+ {
+ load_union_t *load_hdr; /* load command header */
+
+ load_cmd = load_end++;
+ load_hdr = (load_union_t *) (obj + offset);
+
+ /* If modifing the program file, copy the header. */
+ if (rw)
+ {
+ load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size);
+ memcpy (ptr, load_hdr, load_hdr->hdr.ldci_cmd_size);
+ load_hdr = ptr;
+
+ /* null out old command map, because we will rewrite at the end. */
+ if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP)
+ {
+ cmd_strings = ptr->map.lcm_ld_cmd_strings;
+ ptr->hdr.ldci_cmd_type = LDC_UNDEFINED;
+ }
+ }
+
+ load_cmd->load = load_hdr;
+ if (load_hdr->hdr.ldci_section_off > 0)
+ load_cmd->section = obj + load_hdr->hdr.ldci_section_off;
+
+ if (debug)
+ print_load_command (load_hdr, offset, i);
+
+ offset += load_hdr->hdr.ldci_cmd_size;
+ }
+
+ /* If the last command is the load command map and is not undefined,
+ decrement the count of load commands. */
+ if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED)
+ {
+ load_end--;
+ hdr.moh_n_load_cmds--;
+ }
+
+ /* Go through and process each symbol table section. */
+ symbol_load_cmds = 0;
+ for (load_cmd = load_array; load_cmd < load_end; load_cmd++)
+ {
+ load_union_t *load_hdr = load_cmd->load;
+
+ if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS)
+ {
+ symbol_load_cmds++;
+
+ if (debug)
+ {
+ char *kind = "uknown";
+
+ switch (load_hdr->sym.symc_kind)
+ {
+ case SYMC_IMPORTS: kind = "imports"; break;
+ case SYMC_DEFINED_SYMBOLS: kind = "defined"; break;
+ case SYMC_STABS: kind = "stabs"; break;
+ }
+
+ fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n",
+ symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind);
+ }
+
+ if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS)
+ continue;
+
+ str_sect = load_array[ load_hdr->sym.symc_strings_section ].section;
+ if (str_sect == (char *)0)
+ fatal ("string section missing");
+
+ if (load_cmd->section == (char *)0)
+ fatal ("section pointer missing");
+
+ num_syms = load_hdr->sym.symc_nentries;
+ for (i = 0; i < num_syms; i++)
+ {
+ symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i;
+ char *name = sym->si_name.symbol_name + str_sect;
+ char *name_start = name;
+
+ if (name[0] != '_')
+ continue;
+
+ while (*++name == '_') /* skip any extra '_' inserted */
+ ;
+
+ if (rw)
+ {
+ if (*name != 'm' || (name - name_start) < 2
+ || strcmp (name, "main"))
+ continue;
+
+ main_sym = sym;
+ }
+
+ else if (*name == 'G')
+ {
+ if (! strncmp (name, "GLOBAL_$I$", 10))
+ add_to_list (&constructors, name_start);
+
+ else if (! strncmp (name, "GLOBAL_$D$", 10))
+ add_to_list (&destructors, name_start);
+
+ else /* not a constructor or destructor */
+ continue;
+ }
+
+ else if (*name == 's' && (name - name_start) > 2)
+ {
+ if (! strncmp (name, "sti__", 5))
+ add_to_list (&constructors, name_start);
+
+ else if (! strncmp (name, "std__", 5))
+ add_to_list (&destructors, name_start);
+
+ else /* not a constructor or destructor */
+ continue;
+ }
+
+ else
+ continue;
+
+ if (debug)
+ fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n",
+ sym->si_type, sym->si_sc_type, sym->si_flags, name);
+ }
+ }
+ }
+
+ if (symbol_load_cmds == 0)
+ fatal ("no symbol table found.");
+
+ /* Update the program file now, rewrite header and load commands. At present,
+ we assume that there is enough space after the last load command to insert
+ one more. Since the first section written out is page aligned, and the
+ number of load commands is small, this is ok for the present. */
+
+ if (rw)
+ {
+ load_union_t *load_map;
+ size_t size;
+
+ if (cmd_strings == -1)
+ fatal ("no cmd_strings found.");
+
+ /* Add __main to initializer list. */
+ if (main_sym != (symbol_info_t *)0)
+ add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION);
+
+ if (debug)
+ fprintf (stderr, "\nUpdating header and load commands.\n\n");
+
+ hdr.moh_n_load_cmds++;
+ size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1));
+
+ /* Create new load command map. */
+ if (debug)
+ fprintf (stderr, "load command map, %d cmds, new size %ld.\n",
+ (int)hdr.moh_n_load_cmds, (long)size);
+
+ load_map = (load_union_t *) xcalloc (1, size);
+ load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP;
+ load_map->map.ldc_header.ldci_cmd_size = size;
+ load_map->map.lcm_ld_cmd_strings = cmd_strings;
+ load_map->map.lcm_nentries = hdr.moh_n_load_cmds;
+ load_array[hdr.moh_n_load_cmds-1].load = load_map;
+
+ offset = hdr.moh_first_cmd_off;
+ for (i = 0; i < hdr.moh_n_load_cmds; i++)
+ {
+ load_map->map.lcm_map[i] = offset;
+ if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP)
+ hdr.moh_load_map_cmd_off = offset;
+
+ offset += load_array[i].load->hdr.ldci_cmd_size;
+ }
+
+ hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR;
+
+ if (debug)
+ print_header (&hdr);
+
+ /* Write header */
+ status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR);
+ if (status != MO_HDR_CONV_SUCCESS)
+ bad_header (status);
+
+ if (debug)
+ fprintf (stderr, "writing load commands.\n\n");
+
+ /* Write load commands */
+ offset = hdr.moh_first_cmd_off;
+ for (i = 0; i < hdr.moh_n_load_cmds; i++)
+ {
+ load_union_t *load_hdr = load_array[i].load;
+ size_t size = load_hdr->hdr.ldci_cmd_size;
+
+ if (debug)
+ print_load_command (load_hdr, offset, i);
+
+ memcpy (obj + offset, load_hdr, size);
+ offset += size;
+ }
+ }
+
+ end_file (obj_file);
+
+ if (close (prog_fd))
+ fatal_perror ("Can't close %s", prog_name);
+
+ if (debug)
+ fprintf (stderr, "\n");
+}
+
+\f
+/* Add a function table to the load commands to call a function
+ on initition or termination of the process. */
+
+static void
+add_func_table (hdr_p, load_array, sym, type)
+ mo_header_t *hdr_p; /* pointer to global header */
+ load_all_t *load_array; /* array of ptrs to load cmds */
+ symbol_info_t *sym; /* pointer to symbol entry */
+ int type; /* fntc_type value */
+{
+ /* Add a new load command. */
+ int num_cmds = ++hdr_p->moh_n_load_cmds;
+ int load_index = num_cmds - 1;
+ size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t);
+ load_union_t *ptr = xcalloc (1, size);
+ load_all_t *load_cmd;
+ int i;
+
+ /* Set the unresolved address bit in the header to force the loader to be
+ used, since kernel exec does not call the initialization functions. */
+ hdr_p->moh_flags |= MOH_UNRESOLVED_F;
+
+ load_cmd = &load_array[load_index];
+ load_cmd->load = ptr;
+ load_cmd->section = (char *)0;
+
+ /* Fill in func table load command. */
+ ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE;
+ ptr->func.ldc_header.ldci_cmd_size = size;
+ ptr->func.ldc_header.ldci_section_off = 0;
+ ptr->func.ldc_header.ldci_section_len = 0;
+ ptr->func.fntc_type = type;
+ ptr->func.fntc_nentries = 1;
+
+ /* copy address, turn it from abs. address to (region,offset) if necessary. */
+ /* Is the symbol already expressed as (region, offset)? */
+ if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0)
+ {
+ ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid;
+ ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff;
+ }
+
+ /* If not, figure out which region it's in. */
+ else
+ {
+ mo_vm_addr_t addr = sym->si_value.abs_val;
+ int found = 0;
+
+ for (i = 0; i < load_index; i++)
+ {
+ if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION)
+ {
+ region_command_t *region_ptr = &load_array[i].load->region;
+
+ if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0
+ && addr >= region_ptr->regc_addr.vm_addr
+ && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size)
+ {
+ ptr->func.fntc_entry_loc[0].adr_lcid = i;
+ ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr;
+ found++;
+ break;
+ }
+ }
+ }
+
+ if (!found)
+ fatal ("could not convert 0x%l.8x into a region", addr);
+ }
+
+ if (debug)
+ fprintf (stderr,
+ "%s function, region %d, offset = %ld (0x%.8lx)\n",
+ (type == FNTC_INITIALIZATION) ? "init" : "term",
+ (int)ptr->func.fntc_entry_loc[i].adr_lcid,
+ (long)ptr->func.fntc_entry_loc[i].adr_sctoff,
+ (long)ptr->func.fntc_entry_loc[i].adr_sctoff);
+
+}
+
+\f
+/* Print the global header for an OSF/rose object. */
+
+static void
+print_header (hdr_ptr)
+ mo_header_t *hdr_ptr;
+{
+ fprintf (stderr, "\nglobal header:\n");
+ fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic);
+ fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version);
+ fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version);
+ fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version);
+ fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size);
+ fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order);
+ fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id);
+ fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type);
+ fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype);
+ fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type);
+ fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off);
+ fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off);
+ fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds);
+ fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds);
+ fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags);
+
+ if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F)
+ fprintf (stderr, ", relocatable");
+
+ if (hdr_ptr->moh_flags & MOH_LINKABLE_F)
+ fprintf (stderr, ", linkable");
+
+ if (hdr_ptr->moh_flags & MOH_EXECABLE_F)
+ fprintf (stderr, ", execable");
+
+ if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F)
+ fprintf (stderr, ", executable");
+
+ if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F)
+ fprintf (stderr, ", unresolved");
+
+ fprintf (stderr, "\n\n");
+ return;
+}
+
+\f
+/* Print a short summary of a load command. */
+
+static void
+print_load_command (load_hdr, offset, number)
+ load_union_t *load_hdr;
+ size_t offset;
+ int number;
+{
+ mo_long_t type = load_hdr->hdr.ldci_cmd_type;
+ char *type_str = (char *)0;
+
+ switch (type)
+ {
+ case LDC_UNDEFINED: type_str = "UNDEFINED"; break;
+ case LDC_CMD_MAP: type_str = "CMD_MAP"; break;
+ case LDC_INTERPRETER: type_str = "INTERPRETER"; break;
+ case LDC_STRINGS: type_str = "STRINGS"; break;
+ case LDC_REGION: type_str = "REGION"; break;
+ case LDC_RELOC: type_str = "RELOC"; break;
+ case LDC_PACKAGE: type_str = "PACKAGE"; break;
+ case LDC_SYMBOLS: type_str = "SYMBOLS"; break;
+ case LDC_ENTRY: type_str = "ENTRY"; break;
+ case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break;
+ case LDC_GEN_INFO: type_str = "GEN_INFO"; break;
+ }
+
+ fprintf (stderr,
+ "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx",
+ number,
+ (long) load_hdr->hdr.ldci_cmd_size,
+ (long) offset,
+ (long) load_hdr->hdr.ldci_section_off,
+ (long) load_hdr->hdr.ldci_section_len);
+
+ if (type_str == (char *)0)
+ fprintf (stderr, ", ty: unknown (%ld)\n", (long) type);
+
+ else if (type != LDC_REGION)
+ fprintf (stderr, ", ty: %s\n", type_str);
+
+ else
+ {
+ char *region = "";
+ switch (load_hdr->region.regc_usage_type)
+ {
+ case REG_TEXT_T: region = ", .text"; break;
+ case REG_DATA_T: region = ", .data"; break;
+ case REG_BSS_T: region = ", .bss"; break;
+ case REG_GLUE_T: region = ", .glue"; break;
+#if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/
+ case REG_RDATA_T: region = ", .rdata"; break;
+ case REG_SDATA_T: region = ", .sdata"; break;
+ case REG_SBSS_T: region = ", .sbss"; break;
+#endif
+ }
+
+ fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n",
+ type_str,
+ (long) load_hdr->region.regc_vm_addr,
+ (long) load_hdr->region.regc_vm_size,
+ region);
+ }
+
+ return;
+}
+
+\f
+/* Fatal error when {en,de}code_mach_o_header fails. */
+
+static void
+bad_header (status)
+ int status;
+{
+ char *msg = (char *)0;
+
+ switch (status)
+ {
+ case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break;
+ case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break;
+ case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break;
+ case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break;
+ case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break;
+ case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break;
+ }
+
+ if (msg == (char *)0)
+ fatal ("unknown {de,en}code_mach_o_hdr return value %d", status);
+ else
+ fatal ("%s", msg);
+}
+
+\f
+/* Read a file into a memory buffer. */
+
+static struct file_info *
+read_file (name, fd, rw)
+ char *name; /* filename */
+ int fd; /* file descriptor */
+ int rw; /* read/write */
+{
+ struct stat stat_pkt;
+ struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1);
+#ifdef USE_MMAP
+ static int page_size;
+#endif
+
+ if (fstat (fd, &stat_pkt) < 0)
+ fatal_perror ("fstat %s", name);
+
+ p->name = name;
+ p->size = stat_pkt.st_size;
+ p->rounded_size = stat_pkt.st_size;
+ p->fd = fd;
+ p->rw = rw;
+
+#ifdef USE_MMAP
+ if (debug)
+ fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only");
+
+ if (page_size == 0)
+ page_size = sysconf (_SC_PAGE_SIZE);
+
+ p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size;
+ 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)
+ p->use_mmap = 1;
+
+ else
+#endif /* USE_MMAP */
+ {
+ long len;
+
+ if (debug)
+ fprintf (stderr, "read %s\n", name);
+
+ p->use_mmap = 0;
+ p->start = xmalloc (p->size);
+ if (lseek (fd, 0L, SEEK_SET) < 0)
+ fatal_perror ("lseek to 0 on %s", name);
+
+ len = read (fd, p->start, p->size);
+ if (len < 0)
+ fatal_perror ("read %s", name);
+
+ if (len != p->size)
+ fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name);
+ }
+
+ return p;
+}
+
+\f
+/* Do anything necessary to write a file back from memory. */
+
+static void
+end_file (ptr)
+ struct file_info *ptr; /* file information block */
+{
+#ifdef USE_MMAP
+ if (ptr->use_mmap)
+ {
+ if (ptr->rw)
+ {
+ if (debug)
+ fprintf (stderr, "msync %s\n", ptr->name);
+
+ if (msync (ptr->start, ptr->rounded_size, MS_ASYNC))
+ fatal_perror ("msync %s", ptr->name);
+ }
+
+ if (debug)
+ fprintf (stderr, "munmap %s\n", ptr->name);
+
+ if (munmap (ptr->start, ptr->size))
+ fatal_perror ("munmap %s", ptr->name);
+ }
+ else
+#endif /* USE_MMAP */
+ {
+ if (ptr->rw)
+ {
+ long len;
+
+ if (debug)
+ fprintf (stderr, "write %s\n", ptr->name);
+
+ if (lseek (ptr->fd, 0L, SEEK_SET) < 0)
+ fatal_perror ("lseek to 0 on %s", ptr->name);
+
+ len = write (ptr->fd, ptr->start, ptr->size);
+ if (len < 0)
+ fatal_perror ("read %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 ((generic *)ptr);
+}
+
+#endif /* OBJECT_FORMAT_ROSE */
--- /dev/null
+/* Output variables, constants and external declarations, for GNU compiler.
+ Copyright (C) 1988 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+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. */
+
+/* This enables certain macros in vax.h, which will make an indirect
+ reference to an external symbol an invalid address. This needs to be
+ defined before we include vax.h, since it determines which macros
+ are used for GO_IF_*. */
+
+#define NO_EXTERNAL_INDIRECT_ADDRESS
+
+#include "vax.h"
+
+#undef LIB_SPEC
+#undef CPP_PREDEFINES
+#undef TARGET_VERSION
+#undef TARGET_DEFAULT
+#undef CALL_USED_REGISTERS
+#undef MAYBE_VMS_FUNCTION_PROLOGUE
+
+/* Predefine this in CPP because VMS limits the size of command options
+ and GNU CPP is not used on VMS except with GNU C. */
+#define CPP_PREDEFINES "-Dvax -Dvms -DVMS -D__GNU__ -D__GNUC__"
+
+/* Strictly speaking, VMS does not use DBX at all, but the interpreter built
+ into gas only speaks straight DBX. */
+
+#define DEFAULT_GDB_EXTENSIONS 0
+
+/* By default, allow $ to be part of an identifier. */
+#define DOLLARS_IN_IDENTIFIERS 2
+
+#define TARGET_DEFAULT 1
+#define TARGET_VERSION fprintf (stderr, " (vax vms)");
+
+#define CALL_USED_REGISTERS {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1}
+
+#define __MAIN_NAME " main ("
+/*
+ * The MAYBE_VMS_FUNCTION_PROLOGUE macro works for both gcc and g++. It
+ * first checks to see if the current routine is "main", which will only
+ * happen for GCC, and add the jsb if it is. If is not the case then try and
+ * see if __MAIN_NAME is part of current_function_name, which will only happen
+ * if we are running g++, and add the jsb if it is. In gcc there should never
+ * be a space in the function name, and in g++ there is always a "(" in the
+ * function name, thus there should never be any confusion.
+ */
+#define MAYBE_VMS_FUNCTION_PROLOGUE(FILE) \
+{ extern char *current_function_name; \
+ if (!strcmp ("main", current_function_name)) \
+ fprintf(FILE, "\tjsb _c$main_args\n"); \
+ else { \
+ char *p = current_function_name; \
+ while (*p != '\0') \
+ if (*p == *__MAIN_NAME) \
+ if (strncmp(p, __MAIN_NAME, (sizeof __MAIN_NAME)-1) == 0) {\
+ fprintf(FILE, "\tjsb _c$main_args\n");\
+ break; \
+ } else \
+ p++; \
+ else \
+ p++; \
+ }; \
+}
+
+/* This macro definition sets up a default value for `main' to return. */
+#define DEFAULT_MAIN_RETURN c_expand_return (integer_one_node)
+\f
+/* This makes use of a hook in varasm.c to mark all external variables
+ for us. We use this to make sure that external variables are correctly
+ addressed. Under VMS there is some brain damage in the linker that requires
+ us to do this. */
+
+#define ENCODE_SECTION_INFO(decl) \
+ if (TREE_EXTERNAL (decl) && TREE_PUBLIC (decl)) \
+ SYMBOL_REF_FLAG (XEXP (DECL_RTL (decl), 0)) = 1;
+
+/* Under VMS we write the actual size of the storage to be allocated even
+ though the symbol is external. Although it is possible to give external
+ symbols a size of 0 (as unix does), the VMS linker does not make the
+ distinction between a variable definition and an external reference of a
+ variable, and thus the linker will not complain about a missing definition.
+ If we followed the unix example of giving external symbols a size of
+ zero, you tried to link a program where a given variable was externally
+ defined but none of the object modules contained a non-extern definition,
+ the linker would allocate 0 bytes for the variable, and any attempt to
+ use that variable would use the storage allocated to some other variable.
+
+ We must also select either const_section or data_section: this will indicate
+ whether or not the variable will get the readonly bit set. Since the
+ VMS linker does not distinguish between a variable's definition and an
+ external reference, all usages of a given variable must have the readonly
+ bit set the same way, or the linker will get confused and give warning
+ messages. */
+
+/* We used to round the size up to a multiple of 4,
+ but that causes linker errors sometimes when the variable was initialized
+ since the size of its definition was not likewise rounded up. */
+
+#define ASM_OUTPUT_EXTERNAL(FILE,DECL,NAME) \
+{ if (DECL_INITIAL (DECL) == 0 && TREE_CODE (DECL) != FUNCTION_DECL) \
+ { \
+ if (TREE_READONLY (decl) && ! TREE_THIS_VOLATILE (decl)) \
+ const_section (); \
+ else \
+ data_section (); \
+ fputs (".comm ", (FILE)); \
+ assemble_name ((FILE), (NAME)); \
+ if (DECL_SIZE (DECL) == 0) \
+ fprintf ((FILE), ",0\n"); \
+ else \
+ { \
+ tree size_tree; \
+ size_tree = size_binop (CEIL_DIV_EXPR, \
+ DECL_SIZE (DECL), size_int (BITS_PER_UNIT)); \
+ fprintf ((FILE), ",%d\n", TREE_INT_CST_LOW (size_tree)); \
+ } \
+ } \
+}
+
+/* Here we redefine ASM_OUTPUT_COMMON to select the data_section or the
+ const_section before writing the ".const" assembler directive.
+ If we were specifying a size of zero for external variables, we would
+ not have to select a section, since the assembler can assume that
+ when the size > 0, the storage is for a non-external, uninitialized
+ variable (for which a "const" declaration would be senseless),
+ and the assembler can make the storage read/write.
+
+ Since the ".const" directive specifies the actual size of the storage used
+ for both external and non-external variables, the assembler cannot
+ make this assumption, and thus it has no way of deciding if storage should
+ be read/write or read-only. To resolve this, we give the assembler some
+ assistance, in the form of a ".const" or a ".data" directive.
+
+ Under GCC 1.40, external variables were declared with a size of zero.
+ The GNU assembler, GAS, will recognize the "-2" switch when built for VMS;
+ when compiling programs with GCC 2.n this switch should be used or the
+ assembler will not give the read-only attribute to external constants.
+ Failure to use this switch will result in linker warning messages about
+ mismatched psect attributes. */
+
+#undef ASM_OUTPUT_COMMON
+
+#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
+( ((TREE_READONLY (decl) && ! TREE_THIS_VOLATILE (decl)) \
+ ? (const_section (), 0) : (data_section (), 0)), \
+ fputs (".comm ", (FILE)), \
+ assemble_name ((FILE), (NAME)), \
+ fprintf ((FILE), ",%u\n", (ROUNDED)))
+
+/* We define this to prevent the name mangler from putting dollar signs into
+ function names. This isn't really needed, but it has been here for
+ some time and removing it would cause the object files generated by the
+ compiler to be incompatible with the object files from a compiler that
+ had this defined. Since it does no harm, we leave it in. */
+
+#define NO_DOLLAR_IN_LABEL
+
+/* Add a "const" section. This is viewed by the assember as being nearly
+ the same as the "data" section, with the only difference being that a
+ flag is set for variables declared while in the const section. This
+ flag is used to determine whether or not the read/write bit should be
+ set in the Psect definition. */
+
+#define EXTRA_SECTIONS in_const
+
+#define EXTRA_SECTION_FUNCTIONS \
+void \
+const_section () \
+{ \
+ if (in_section != in_const) { \
+ fprintf(asm_out_file,".const\n"); \
+ in_section = in_const; \
+ } \
+}
+
+/* This macro contains the logic to decide which section a variable
+ should be stored in. Static constant variables go in the text_section,
+ non-const variables go in the data_section, and non-static const
+ variables go in the const_section.
+
+ Since this macro is used in a number of places, we must also be able
+ to decide where to place string constants. */
+
+#define SELECT_SECTION(T,RELOC) \
+{ \
+ if (TREE_CODE (T) == VAR_DECL) \
+ { \
+ if (TREE_READONLY (T) && ! TREE_THIS_VOLATILE (T)) \
+ { \
+ if (TREE_PUBLIC (T)) \
+ const_section (); \
+ else \
+ text_section (); \
+ } \
+ else \
+ data_section (); \
+ } \
+ if (*tree_code_type[(int) TREE_CODE (T)] == 'c') \
+ { \
+ if ((TREE_CODE (T) == STRING_CST && flag_writable_strings)) \
+ data_section (); \
+ else \
+ text_section (); \
+ } \
+}
+
+/* This is used by a hook in varasm.c to write the assembler directives
+ that are needed to tell the startup code which constructors need to
+ be run. */
+
+#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
+{ \
+ fprintf ((FILE),".globl $$PsectAttributes_NOOVR$$__gxx_init_1\n"); \
+ data_section(); \
+ fprintf ((FILE),"$$PsectAttributes_NOOVR$$__gxx_init_1:\n\t.long\t"); \
+ assemble_name ((FILE), (NAME)); \
+ fputc ('\n', (FILE)); \
+}
+
+/* This is used by a hook in varasm.c to write the assembler directives
+ that are needed to tell the startup code which destructors need to
+ be run. */
+
+#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
+{ \
+ fprintf ((FILE),".globl $$PsectAttributes_NOOVR$$__gxx_clean_1\n"); \
+ data_section(); \
+ fprintf ((FILE),"$$PsectAttributes_NOOVR$$__gxx_clean_1:\n\t.long\t");\
+ assemble_name ((FILE), (NAME)); \
+ fputc ('\n', (FILE)); \
+}
+
+
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