#include "config.h"
#include "system.h"
#include <signal.h>
#ifdef vfork
# define VFORK_STRING "fork"
#else
# define VFORK_STRING "vfork"
#endif
#ifdef HAVE_VFORK_H
#include <vfork.h>
#endif
#ifdef VMS
#define vfork() (decc$$alloc_vfork_blocks() >= 0 ? \
lib$get_current_invo_context(decc$$get_vfork_jmpbuf()) : -1)
#endif
#define COLLECT
#include "collect2.h"
#include "demangle.h"
#include "obstack.h"
#include "intl.h"
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
extern char *make_temp_file PROTO ((char *));
#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 !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE)
#define OBJECT_FORMAT_NONE
#endif
#ifdef OBJECT_FORMAT_COFF
#include <a.out.h>
#include <ar.h>
#ifdef UMAX
#include <sgs.h>
#endif
#ifdef FREAD
#undef FREAD
#undef FWRITE
#endif
#include <ldfcn.h>
#ifndef MY_ISCOFF
#define MY_ISCOFF(X) ISCOFF (X)
#endif
#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
#ifdef OBJECT_FORMAT_NONE
#ifndef NM_FLAGS
#define NM_FLAGS "-n"
#endif
#endif
#ifndef NAME__MAIN
#define NAME__MAIN "__main"
#define SYMBOL__MAIN __main
#endif
#define DEFAULT_INIT_PRIORITY 65535
#if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES
#define SCAN_LIBRARIES
#endif
#ifdef USE_COLLECT2
int do_collecting = 1;
#else
int do_collecting = 0;
#endif
struct id
{
struct id *next;
int sequence;
char name[1];
};
struct head
{
struct id *first;
struct id *last;
int number;
};
enum pass {
PASS_FIRST,
PASS_OBJ,
PASS_LIB,
PASS_SECOND
};
extern char *version_string;
int vflag;
static int rflag;
static int strip_flag;
#ifdef COLLECT_EXPORT_LIST
static int export_flag;
static int aix64_flag;
#endif
int debug;
static int shared_obj;
static char *c_file;
static char *o_file;
#ifdef COLLECT_EXPORT_LIST
static char *export_file;
static char *import_file;
#endif
char *ldout;
static char *output_file;
static char *nm_file_name;
#ifdef LDD_SUFFIX
static char *ldd_file_name;
#endif
static char *strip_file_name;
char *c_file_name;
static char *initname, *fininame;
static struct head constructors;
static struct head destructors;
#ifdef COLLECT_EXPORT_LIST
static struct head exports;
static struct head imports;
static struct head undefined;
#endif
static struct head frame_tables;
struct obstack temporary_obstack;
struct obstack permanent_obstack;
char * temporary_firstobj;
int pexecute_pid;
extern int prepends_underscore;
extern FILE *fdopen ();
#ifndef GET_ENV_PATH_LIST
#define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
#endif
struct prefix_list
{
char *prefix;
struct prefix_list *next;
};
struct path_prefix
{
struct prefix_list *plist;
int max_len;
char *name;
};
#ifdef COLLECT_EXPORT_LIST
static struct head libs;
static struct path_prefix cmdline_lib_dirs;
static struct path_prefix libpath_lib_dirs;
static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs,
&libpath_lib_dirs, NULL};
static char *libexts[3] = {"a", "so", NULL};
#endif
void error PVPROTO((const char *, ...)) ATTRIBUTE_PRINTF_1;
void fatal PVPROTO((const char *, ...))
ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
void fatal_perror PVPROTO((const char *, ...))
ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
static char *my_strerror PROTO((int));
static const char *my_strsignal PROTO((int));
static void handler PROTO((int));
static int is_ctor_dtor PROTO((char *));
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 int extract_init_priority PROTO((char *));
static void sort_ids PROTO((struct head *));
static void write_list PROTO((FILE *, char *, struct id *));
#ifdef COLLECT_EXPORT_LIST
static void dump_list PROTO((FILE *, char *, struct id *));
#endif
#if 0
static void dump_prefix_list PROTO((FILE *, char *, struct prefix_list *));
#endif
static void write_list_with_asm PROTO((FILE *, char *, struct id *));
static void write_c_file PROTO((FILE *, char *));
static void scan_prog_file PROTO((char *, enum pass));
#ifdef SCAN_LIBRARIES
static void scan_libraries PROTO((char *));
#endif
#ifdef COLLECT_EXPORT_LIST
static int is_in_list PROTO((char *, struct id *));
static void write_export_file PROTO((FILE *));
static void write_import_file PROTO((FILE *));
static char *resolve_lib_name PROTO((char *));
static int use_import_list PROTO((char *));
static int ignore_library PROTO((char *));
#endif
#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)
fdtmp[fdx++] = fd;
while (fdx > 0)
close (fdtmp[--fdx]);
return fd;
}
#endif
static char *
my_strerror (e)
int e;
{
#ifdef HAVE_STRERROR
return strerror (e);
#else
if (!e)
return "";
if (e > 0 && e < sys_nerr)
return sys_errlist[e];
return "errno = ?";
#endif
}
static const char *
my_strsignal (s)
int s;
{
#ifdef HAVE_STRSIGNAL
return strsignal (s);
#else
if (s >= 0 && s < NSIG)
{
# ifdef NO_SYS_SIGLIST
static char buffer[30];
sprintf (buffer, "Unknown signal %d", s);
return buffer;
# else
return sys_siglist[s];
# endif
}
else
return NULL;
#endif
}
void
collect_exit (status)
int status;
{
if (c_file != 0 && c_file[0])
maybe_unlink (c_file);
if (o_file != 0 && o_file[0])
maybe_unlink (o_file);
#ifdef COLLECT_EXPORT_LIST
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
if (import_file != 0 && import_file[0])
maybe_unlink (import_file);
#endif
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);
}
void
notice VPROTO((char *msgid, ...))
{
#ifndef ANSI_PROTOTYPES
char *msgid;
#endif
va_list ap;
VA_START (ap, msgid);
#ifndef ANSI_PROTOTYPES
msgid = va_arg (ap, char *);
#endif
vfprintf (stderr, _(msgid), ap);
va_end (ap);
}
void
fatal_perror VPROTO((const char * msgid, ...))
{
#ifndef ANSI_PROTOTYPES
const char *msgid;
#endif
int e = errno;
va_list ap;
VA_START (ap, msgid);
#ifndef ANSI_PROTOTYPES
msgid = va_arg (ap, const char *);
#endif
fprintf (stderr, "collect2: ");
vfprintf (stderr, _(msgid), ap);
fprintf (stderr, ": %s\n", my_strerror (e));
va_end (ap);
collect_exit (FATAL_EXIT_CODE);
}
void
fatal VPROTO((const char * msgid, ...))
{
#ifndef ANSI_PROTOTYPES
const char *msgid;
#endif
va_list ap;
VA_START (ap, msgid);
#ifndef ANSI_PROTOTYPES
msgid = va_arg (ap, const char *);
#endif
fprintf (stderr, "collect2: ");
vfprintf (stderr, _(msgid), ap);
fprintf (stderr, "\n");
va_end (ap);
collect_exit (FATAL_EXIT_CODE);
}
void
error VPROTO((const char * msgid, ...))
{
#ifndef ANSI_PROTOTYPES
const char * msgid;
#endif
va_list ap;
VA_START (ap, msgid);
#ifndef ANSI_PROTOTYPES
msgid = va_arg (ap, const char *);
#endif
fprintf (stderr, "collect2: ");
vfprintf (stderr, _(msgid), ap);
fprintf (stderr, "\n");
va_end(ap);
}
void
fancy_abort ()
{
fatal ("internal error");
}
static void
handler (signo)
int signo;
{
if (c_file != 0 && c_file[0])
maybe_unlink (c_file);
if (o_file != 0 && o_file[0])
maybe_unlink (o_file);
if (ldout != 0 && ldout[0])
maybe_unlink (ldout);
#ifdef COLLECT_EXPORT_LIST
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
if (import_file != 0 && import_file[0])
maybe_unlink (import_file);
#endif
signal (signo, SIG_DFL);
kill (getpid (), signo);
}
PTR
xcalloc (size1, size2)
size_t size1, size2;
{
PTR ptr = (PTR) calloc (size1, size2);
if (!ptr)
fatal ("out of memory");
return ptr;
}
PTR
xmalloc (size)
size_t size;
{
PTR ptr = (PTR) malloc (size);
if (!ptr)
fatal ("out of memory");
return ptr;
}
PTR
xrealloc (old, size)
PTR old;
size_t size;
{
register PTR ptr;
if (old)
ptr = (PTR) realloc (old, size);
else
ptr = (PTR) malloc (size);
if (ptr == 0)
fatal ("virtual memory exhausted");
return ptr;
}
int
file_exists (name)
char *name;
{
return access (name, R_OK) == 0;
}
char *
xstrdup (input)
const char *input;
{
register size_t len = strlen (input) + 1;
register char *output = xmalloc (len);
memcpy (output, input, len);
return output;
}
static char *
extract_string (pp)
char **pp;
{
char *p = *pp;
int backquote = 0;
int inside = 0;
for (;;)
{
char c = *p;
if (c == '\0')
break;
++p;
if (backquote)
obstack_1grow (&temporary_obstack, c);
else if (! inside && c == ' ')
break;
else if (! inside && c == '\\')
backquote = 1;
else if (c == '\'')
inside = !inside;
else
obstack_1grow (&temporary_obstack, c);
}
obstack_1grow (&temporary_obstack, '\0');
*pp = p;
return obstack_finish (&temporary_obstack);
}
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 == '$' || c == '.'))
obstack_1grow (&temporary_obstack, c);
if (obstack_object_size (&temporary_obstack) > 0)
{
char *word, *p, *result;
obstack_1grow (&temporary_obstack, '\0');
word = obstack_finish (&temporary_obstack);
if (*word == '.')
++word, putc ('.', stderr);
p = word;
if (*p == '_' && prepends_underscore)
++p;
if (no_demangle)
result = 0;
else
result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI);
if (result)
{
int diff;
fputs (result, stderr);
diff = strlen (word) - strlen (result);
while (diff > 0)
--diff, putc (' ', stderr);
while (diff < 0 && c == ' ')
++diff, c = getc (stream);
free (result);
}
else
fputs (word, stderr);
fflush (stderr);
obstack_free (&temporary_obstack, temporary_firstobj);
}
if (c == EOF)
break;
putc (c, stderr);
}
fclose (stream);
}
static int
is_ctor_dtor (s)
char *s;
{
struct names { char *name; int len; int ret; int two_underscores; };
register struct names *p;
register int ch;
register char *orig_s = s;
static struct names special[] = {
#ifdef NO_DOLLAR_IN_LABEL
#ifdef NO_DOT_IN_LABEL
{ "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
{ "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
{ "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, 5, 0 },
#else
{ "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
{ "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
{ "GLOBAL_.F.", sizeof ("GLOBAL_.F.")-1, 5, 0 },
#endif
#else
{ "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
{ "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
{ "GLOBAL_$F$", sizeof ("GLOBAL_$F$")-1, 5, 0 },
#endif
{ "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
{ "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
#ifdef CFRONT_LOSSAGE
{ "sti__", sizeof ("sti__")-1, 1, 1 },
{ "std__", sizeof ("std__")-1, 2, 1 },
#endif
{ NULL, 0, 0, 0 }
};
while ((ch = *s) == '_')
++s;
if (s == orig_s)
return 0;
for (p = &special[0]; p->len > 0; p++)
{
if (ch == p->name[0]
&& (!p->two_underscores || ((s - orig_s) >= 2))
&& strncmp(s, p->name, p->len) == 0)
{
return p->ret;
}
}
return 0;
}
#ifndef HAVE_PUTENV
int
putenv (str)
char *str;
{
#ifndef 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 ();
for (envp = old_environ; *envp; envp++)
{
num_envs++;
if (!strncmp (str, *envp, name_len))
{
*envp = str;
return 0;
}
}
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
}
#endif
#ifndef PATH_SEPARATOR
#define PATH_SEPARATOR ':'
#endif
static struct path_prefix cpath, path;
#ifdef CROSS_COMPILE
static char *target_machine = TARGET_MACHINE;
#endif
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;
if (debug)
fprintf (stderr, "Looking for '%s'\n", name);
#ifdef EXECUTABLE_SUFFIX
len += strlen (EXECUTABLE_SUFFIX);
#endif
temp = xmalloc (len);
if (*name == '/'
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|| (*name && name[1] == ':')
#endif
)
{
if (access (name, X_OK) == 0)
{
strcpy (temp, name);
if (debug)
fprintf (stderr, " - found: absolute path\n");
return temp;
}
#ifdef EXECUTABLE_SUFFIX
strcpy (temp, name);
strcat (temp, EXECUTABLE_SUFFIX);
if (access (temp, X_OK) == 0)
return temp;
#endif
if (debug)
fprintf (stderr, " - failed to locate using absolute path\n");
}
else
for (pl = pprefix->plist; pl; pl = pl->next)
{
strcpy (temp, pl->prefix);
strcat (temp, name);
if (access (temp, X_OK) == 0)
return temp;
#ifdef EXECUTABLE_SUFFIX
strcat (temp, EXECUTABLE_SUFFIX);
if (access (temp, X_OK) == 0)
return temp;
#endif
}
if (debug && pprefix->plist == NULL)
fprintf (stderr, " - failed: no entries in prefix list\n");
free (temp);
return 0;
}
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;
len = strlen (prefix);
if (len > pprefix->max_len)
pprefix->max_len = len;
pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
pl->prefix = xstrdup (prefix);
if (*prev)
pl->next = *prev;
else
pl->next = (struct prefix_list *) 0;
*prev = pl;
}
static void
prefix_from_env (env, pprefix)
char *env;
struct path_prefix *pprefix;
{
char *p;
GET_ENV_PATH_LIST (p, 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);
if (debug)
fprintf (stderr, "Convert string '%s' into prefixes, separator = '%c'\n", p, PATH_SEPARATOR);
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;
if (debug)
fprintf (stderr, " - add prefix: %s\n", nstore);
add_prefix (pprefix, nstore);
if (*endp == 0)
break;
endp = startp = endp + 1;
}
else
endp++;
}
}
int
main (argc, argv)
int argc;
char *argv[];
{
char *ld_suffix = "ld";
char *full_ld_suffix = ld_suffix;
char *real_ld_suffix = "real-ld";
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;
#ifdef COLLECT_EXPORT_LIST
FILE *exportf;
FILE *importf;
#endif
char *ld_file_name;
char *p;
char **c_argv;
char **c_ptr;
char **ld1_argv;
char **ld1;
char **ld2_argv;
char **ld2;
char **object_lst;
char **object;
int first_file;
int num_c_args = argc+9;
#if defined (COLLECT2_HOST_INITIALIZATION)
COLLECT2_HOST_INITIALIZATION;
#endif
#ifdef HAVE_LC_MESSAGES
setlocale (LC_MESSAGES, "");
#endif
(void) bindtextdomain (PACKAGE, localedir);
(void) textdomain (PACKAGE);
ld1 = ld1_argv = (char **) xcalloc (sizeof (char *), argc+3);
ld2 = ld2_argv = (char **) xcalloc (sizeof (char *), argc+6);
object = object_lst = (char **) xcalloc (sizeof (char *), argc);
#ifdef DEBUG
debug = 1;
#endif
{
int i;
for (i = 1; argv[i] != NULL; i ++)
if (! strcmp (argv[i], "-debug"))
debug = 1;
vflag = debug;
}
#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;
p = getenv ("COLLECT_GCC_OPTIONS");
while (p && *p)
{
char *q = extract_string (&p);
if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
num_c_args++;
}
obstack_free (&temporary_obstack, temporary_firstobj);
++num_c_args;
c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args);
if (argc < 2)
fatal ("no arguments");
#ifdef SIGQUIT
if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
signal (SIGQUIT, handler);
#endif
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
prefix_from_env ("COMPILER_PATH", &cpath);
prefix_from_env ("PATH", &path);
#ifdef CROSS_COMPILE
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);
#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
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
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
ld_file_name = 0;
#ifdef DEFAULT_LINKER
if (access (DEFAULT_LINKER, X_OK) == 0)
ld_file_name = DEFAULT_LINKER;
if (ld_file_name == 0)
#endif
#ifdef REAL_LD_FILE_NAME
ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME);
if (ld_file_name == 0)
#endif
ld_file_name = find_a_file (&cpath, real_ld_suffix);
if (ld_file_name == 0)
ld_file_name = find_a_file (&cpath, collect_ld_suffix);
if (ld_file_name == 0)
ld_file_name = find_a_file (&cpath, ld_suffix);
if (ld_file_name == 0)
ld_file_name = find_a_file (&path, full_ld_suffix);
#ifdef REAL_NM_FILE_NAME
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
#ifdef 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);
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
c_file_name = "gcc";
#endif
}
p = find_a_file (&cpath, c_file_name);
if (p == 0)
p = find_a_file (&path, c_file_name);
if (p)
c_file_name = p;
*ld1++ = *ld2++ = ld_file_name;
c_file = make_temp_file (".c");
o_file = make_temp_file (".o");
#ifdef COLLECT_EXPORT_LIST
export_file = make_temp_file (".x");
import_file = make_temp_file (".p");
#endif
ldout = make_temp_file (".ld");
*c_ptr++ = c_file_name;
*c_ptr++ = "-x";
*c_ptr++ = "c";
*c_ptr++ = "-c";
*c_ptr++ = "-o";
*c_ptr++ = o_file;
#ifdef COLLECT_EXPORT_LIST
prefix_from_env ("LIBPATH", &libpath_lib_dirs);
add_prefix (&libpath_lib_dirs, "/lib");
add_prefix (&libpath_lib_dirs, "/usr/lib");
#endif
p = getenv ("COLLECT_GCC_OPTIONS");
while (p && *p)
{
char *q = extract_string (&p);
if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
*c_ptr++ = obstack_copy0 (&permanent_obstack, q, strlen (q));
if (strcmp (q, "-EL") == 0 || strcmp (q, "-EB") == 0)
*c_ptr++ = obstack_copy0 (&permanent_obstack, q, strlen (q));
if (strncmp (q, "-shared", sizeof ("-shared") - 1) == 0)
shared_obj = 1;
}
obstack_free (&temporary_obstack, temporary_firstobj);
*c_ptr++ = "-fno-exceptions";
first_file = 1;
while ((arg = *++argv) != (char *) 0)
{
*ld1++ = *ld2++ = arg;
if (arg[0] == '-')
{
switch (arg[1])
{
#ifdef COLLECT_EXPORT_LIST
case 'b':
if (arg[2] == 'E' || strncmp (&arg[2], "export", 6) == 0)
export_flag = 1;
else if (arg[2] == '6' && arg[3] == '4')
aix64_flag = 1;
break;
#endif
case 'd':
if (!strcmp (arg, "-debug"))
{
ld1--;
ld2--;
}
break;
case 'l':
if (first_file)
{
first_file = 0;
ld2--;
*ld2++ = o_file;
*ld2++ = arg;
}
#ifdef COLLECT_EXPORT_LIST
{
char *s = resolve_lib_name (arg+2);
if (use_import_list (s))
{
ld1--;
ld2--;
}
add_to_list (&libs, s);
}
#endif
break;
#ifdef COLLECT_EXPORT_LIST
case 'L':
add_prefix (&cmdline_lib_dirs, arg+2);
break;
#endif
case 'o':
if (arg[2] == '\0')
output_file = *ld1++ = *ld2++ = *++argv;
else
output_file = &arg[2];
break;
case 'r':
if (arg[2] == '\0')
rflag = 1;
break;
case 's':
if (arg[2] == '\0' && do_collecting)
{
strip_flag = 1;
ld1--;
}
break;
case 'v':
if (arg[2] == '\0')
vflag = 1;
break;
}
}
else if ((p = rindex (arg, '.')) != (char *) 0
&& (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0
|| strcmp (p, ".so") == 0))
{
if (first_file)
{
first_file = 0;
if (p[1] == 'o')
*ld2++ = o_file;
else
{
ld2--;
*ld2++ = o_file;
*ld2++ = arg;
}
}
if (p[1] == 'o')
*object++ = arg;
#ifdef COLLECT_EXPORT_LIST
else
{
if (use_import_list (arg))
{
ld1--;
ld2--;
}
add_to_list (&libs, arg);
}
#endif
}
}
#ifdef COLLECT_EXPORT_LIST
if (debug)
{
fprintf (stderr, "List of libraries:\n");
dump_list (stderr, "\t", libs.first);
}
{
char **export_object_lst = object_lst;
while (export_object_lst < object)
scan_prog_file (*export_object_lst++, PASS_OBJ);
}
{
struct id *list = libs.first;
for (; list; list = list->next)
scan_prog_file (list->name, PASS_FIRST);
}
{
char *buf1 = alloca (strlen (export_file) + 5);
char *buf2 = alloca (strlen (import_file) + 5);
sprintf (buf1, "-bE:%s", export_file);
sprintf (buf2, "-bI:%s", import_file);
*ld1++ = buf1;
*ld2++ = buf1;
*ld1++ = buf2;
*ld2++ = buf2;
exportf = fopen (export_file, "w");
if (exportf == (FILE *) 0)
fatal_perror ("fopen %s", export_file);
write_export_file (exportf);
if (fclose (exportf))
fatal_perror ("fclose %s", export_file);
importf = fopen (import_file, "w");
if (importf == (FILE *) 0)
fatal_perror ("%s", import_file);
write_import_file (importf);
if (fclose (importf))
fatal_perror ("fclose %s", import_file);
}
#endif
*c_ptr++ = c_file;
*object = *c_ptr = *ld1 = (char *) 0;
if (vflag)
{
notice ("collect2 version %s", version_string);
#ifdef TARGET_VERSION
TARGET_VERSION;
#endif
fprintf (stderr, "\n");
}
if (debug)
{
char *ptr;
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_GCC_OPTIONS");
if (ptr)
fprintf (stderr, "COLLECT_GCC_OPTIONS = %s\n", ptr);
ptr = getenv ("COLLECT_GCC");
if (ptr)
fprintf (stderr, "COLLECT_GCC = %s\n", ptr);
ptr = getenv ("COMPILER_PATH");
if (ptr)
fprintf (stderr, "COMPILER_PATH = %s\n", ptr);
ptr = getenv ("LIBRARY_PATH");
if (ptr)
fprintf (stderr, "LIBRARY_PATH = %s\n", ptr);
fprintf (stderr, "\n");
}
#ifndef COLLECT_EXPORT_LIST
do_tlink (ld1_argv, object_lst);
#endif
if (rflag
#ifndef COLLECT_EXPORT_LIST
|| ! do_collecting
#endif
)
{
#ifdef COLLECT_EXPORT_LIST
do_tlink (ld1_argv, object_lst);
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
if (import_file != 0 && import_file[0])
maybe_unlink (import_file);
#endif
maybe_unlink (c_file);
maybe_unlink (o_file);
return 0;
}
#ifndef COLLECT_EXPORT_LIST
scan_prog_file (output_file, PASS_FIRST);
#endif
#ifdef SCAN_LIBRARIES
scan_libraries (output_file);
#endif
if (debug)
{
notice ("%d constructor(s) found\n", constructors.number);
notice ("%d destructor(s) found\n", destructors.number);
notice ("%d frame table(s) found\n", frame_tables.number);
}
if (constructors.number == 0 && destructors.number == 0
&& frame_tables.number == 0
#if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST)
&& ! shared_obj
#endif
)
{
#ifdef COLLECT_EXPORT_LIST
do_tlink (ld1_argv, object_lst);
#endif
if (strip_flag)
{
char **strip_argv = (char **) xcalloc (sizeof (char *), 3);
strip_argv[0] = strip_file_name;
strip_argv[1] = output_file;
strip_argv[2] = (char *) 0;
fork_execute ("strip", strip_argv);
}
#ifdef COLLECT_EXPORT_LIST
maybe_unlink (export_file);
maybe_unlink (import_file);
#endif
maybe_unlink (c_file);
maybe_unlink (o_file);
return 0;
}
sort_ids (&constructors);
sort_ids (&destructors);
maybe_unlink(output_file);
outf = fopen (c_file, "w");
if (outf == (FILE *) 0)
fatal_perror ("fopen %s", c_file);
write_c_file (outf, c_file);
if (fclose (outf))
fatal_perror ("fclose %s", c_file);
#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 ("fopen %s", export_file);
write_export_file (exportf);
if (fclose (exportf))
fatal_perror ("fclose %s", export_file);
}
#endif
if (debug)
{
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
}
fork_execute ("gcc", c_argv);
#ifdef COLLECT_EXPORT_LIST
do_tlink (ld2_argv, object_lst);
#else
fork_execute ("ld", ld2_argv);
scan_prog_file (output_file, PASS_SECOND);
#endif
maybe_unlink (c_file);
maybe_unlink (o_file);
#ifdef COLLECT_EXPORT_LIST
maybe_unlink (export_file);
maybe_unlink (import_file);
#endif
return 0;
}
int
collect_wait (prog)
char *prog;
{
int status;
pwait (pexecute_pid, &status, 0);
if (status)
{
if (WIFSIGNALED (status))
{
int sig = WTERMSIG (status);
error ((status & 0200
? "%s terminated with signal %d [%s]"
: "%s terminated with signal %d [%s], core dumped"),
prog,
sig,
my_strsignal(sig));
collect_exit (FATAL_EXIT_CODE);
}
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);
}
}
void
collect_execute (prog, argv, redir)
char *prog;
char **argv;
char *redir;
{
char *errmsg_fmt;
char *errmsg_arg;
int redir_handle = -1;
int stdout_save = -1;
int stderr_save = -1;
if (vflag || debug)
{
char **p_argv;
char *str;
if (argv[0])
fprintf (stderr, "%s", argv[0]);
else
notice ("[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 (argv[0] == 0)
fatal ("cannot find `%s'", prog);
if (redir)
{
redir_handle = open (redir, O_WRONLY | O_TRUNC | O_CREAT);
stdout_save = dup (STDOUT_FILENO);
if (stdout_save == -1)
fatal_perror ("redirecting stdout: %s", redir);
stderr_save = dup (STDERR_FILENO);
if (stderr_save == -1)
fatal_perror ("redirecting stdout: %s", redir);
dup2 (redir_handle, STDOUT_FILENO);
dup2 (redir_handle, STDERR_FILENO);
}
pexecute_pid = pexecute (argv[0], argv, argv[0], NULL,
&errmsg_fmt, &errmsg_arg,
(PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH));
if (redir)
{
dup2 (stdout_save, STDOUT_FILENO);
dup2 (stderr_save, STDERR_FILENO);
close (redir_handle);
}
if (pexecute_pid == -1)
fatal_perror (errmsg_fmt, errmsg_arg);
}
static void
fork_execute (prog, argv)
char *prog;
char **argv;
{
collect_execute (prog, argv, NULL);
do_wait (prog);
}
static void
maybe_unlink (file)
char *file;
{
if (!debug)
unlink (file);
else
notice ("[Leaving %s]\n", file);
}
static long sequence_number = 0;
static void
add_to_list (head_ptr, name)
struct head *head_ptr;
char *name;
{
struct id *newid
= (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1);
struct id *p;
strcpy (newid->name, name);
if (head_ptr->first)
head_ptr->last->next = newid;
else
head_ptr->first = newid;
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++;
}
static int
extract_init_priority (name)
char *name;
{
int pos = 0, pri;
while (name[pos] == '_')
++pos;
pos += 10;
pri = atoi (name + pos);
return pri ? pri : DEFAULT_INIT_PRIORITY;
}
static void
sort_ids (head_ptr)
struct head *head_ptr;
{
struct id *id, *id_next, **id_ptr;
id = head_ptr->first;
head_ptr->first = NULL;
for (; id; id = id_next)
{
id_next = id->next;
id->sequence = extract_init_priority (id->name);
for (id_ptr = &(head_ptr->first); ; id_ptr = &((*id_ptr)->next))
if (*id_ptr == NULL
|| id->sequence > (*id_ptr)->sequence
)
{
id->next = *id_ptr;
*id_ptr = id;
break;
}
}
for (id = head_ptr->first; id; id = id->next)
id->sequence = ++sequence_number;
}
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;
}
}
#ifdef COLLECT_EXPORT_LIST
static int
is_in_list (prefix, list)
char *prefix;
struct id *list;
{
while (list)
{
if (!strcmp (prefix, list->name)) return 1;
list = list->next;
}
return 0;
}
#endif
#ifdef COLLECT_EXPORT_LIST
static void
dump_list (stream, prefix, list)
FILE *stream;
char *prefix;
struct id *list;
{
while (list)
{
fprintf (stream, "%s%s,\n", prefix, list->name);
list = list->next;
}
}
#endif
#if 0
static void
dump_prefix_list (stream, prefix, list)
FILE *stream;
char *prefix;
struct prefix_list *list;
{
while (list)
{
fprintf (stream, "%s%s,\n", prefix, list->prefix);
list = list->next;
}
}
#endif
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;
}
}
static void
write_c_file_stat (stream, name)
FILE *stream;
char *name;
{
char *prefix, *p, *q;
int frames = (frame_tables.number > 0);
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++;
}
}
prefix = xmalloc (q - p + 1);
strncpy (prefix, p, q - p);
prefix[q - p] = 0;
for (q = prefix; *q; q++)
if (!ISALNUM ((unsigned char)*q))
*q = '_';
if (debug)
notice ("\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);
fprintf (stream, "static int count;\n");
fprintf (stream, "typedef void entry_pt();\n");
write_list_with_asm (stream, "extern entry_pt ", constructors.first);
if (frames)
{
write_list_with_asm (stream, "extern void *", frame_tables.first);
fprintf (stream, "\tstatic void *frame_table[] = {\n");
write_list (stream, "\t\t&", frame_tables.first);
fprintf (stream, "\t0\n};\n");
fprintf (stream, "struct object {\n");
fprintf (stream, " void *pc_begin;\n");
fprintf (stream, " void *pc_end;\n");
fprintf (stream, " void *fde_begin;\n");
fprintf (stream, " void *fde_array;\n");
fprintf (stream, " __SIZE_TYPE__ count;\n");
fprintf (stream, " struct object *next;\n");
#ifdef FRAME_SECTION_DESCRIPTOR_STRING
fprintf (stream, FRAME_SECTION_DESCRIPTOR_STRING) ;
#endif
fprintf (stream, "};\n");
fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n");
fprintf (stream, "extern void *__deregister_frame_info (void *);\n");
fprintf (stream, "static void reg_frame () {\n");
fprintf (stream, "\tstatic struct object ob;\n");
fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n");
fprintf (stream, "\t}\n");
fprintf (stream, "static void dereg_frame () {\n");
fprintf (stream, "\t__deregister_frame_info (frame_table);\n");
fprintf (stream, "\t}\n");
}
fprintf (stream, "void %s() {\n", initname);
if (constructors.number > 0 || frames)
{
fprintf (stream, "\tstatic entry_pt *ctors[] = {\n");
write_list (stream, "\t\t", constructors.first);
if (frames)
fprintf (stream, "\treg_frame,\n");
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 + frames);
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 || frames)
{
fprintf (stream, "\tstatic entry_pt *dtors[] = {\n");
write_list (stream, "\t\t", destructors.first);
if (frames)
fprintf (stream, "\tdereg_frame,\n");
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 + frames);
}
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);
}
}
#ifndef LD_INIT_SWITCH
static void
write_c_file_glob (stream, name)
FILE *stream;
char *name;
{
int frames = (frame_tables.number > 0);
fprintf (stream, "typedef void entry_pt();\n\n");
write_list_with_asm (stream, "extern entry_pt ", constructors.first);
if (frames)
{
write_list_with_asm (stream, "extern void *", frame_tables.first);
fprintf (stream, "\tstatic void *frame_table[] = {\n");
write_list (stream, "\t\t&", frame_tables.first);
fprintf (stream, "\t0\n};\n");
fprintf (stream, "struct object {\n");
fprintf (stream, " void *pc_begin;\n");
fprintf (stream, " void *pc_end;\n");
fprintf (stream, " void *fde_begin;\n");
fprintf (stream, " void *fde_array;\n");
fprintf (stream, " __SIZE_TYPE__ count;\n");
fprintf (stream, " struct object *next;\n");
fprintf (stream, "};\n");
fprintf (stream, "extern void __register_frame_info_table (void *, struct object *);\n");
fprintf (stream, "extern void *__deregister_frame_info (void *);\n");
fprintf (stream, "static void reg_frame () {\n");
fprintf (stream, "\tstatic struct object ob;\n");
fprintf (stream, "\t__register_frame_info_table (frame_table, &ob);\n");
fprintf (stream, "\t}\n");
fprintf (stream, "static void dereg_frame () {\n");
fprintf (stream, "\t__deregister_frame_info (frame_table);\n");
fprintf (stream, "\t}\n");
}
fprintf (stream, "\nentry_pt * __CTOR_LIST__[] = {\n");
fprintf (stream, "\t(entry_pt *) %d,\n", constructors.number + frames);
write_list (stream, "\t", constructors.first);
if (frames)
fprintf (stream, "\treg_frame,\n");
fprintf (stream, "\t0\n};\n\n");
write_list_with_asm (stream, "extern entry_pt ", destructors.first);
fprintf (stream, "\nentry_pt * __DTOR_LIST__[] = {\n");
fprintf (stream, "\t(entry_pt *) %d,\n", destructors.number + frames);
write_list (stream, "\t", destructors.first);
if (frames)
fprintf (stream, "\tdereg_frame,\n");
fprintf (stream, "\t0\n};\n\n");
fprintf (stream, "extern entry_pt %s;\n", NAME__MAIN);
fprintf (stream, "entry_pt *__main_reference = %s;\n\n", NAME__MAIN);
}
#endif
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");
}
#ifdef COLLECT_EXPORT_LIST
static void
write_export_file (stream)
FILE *stream;
{
struct id *list = exports.first;
for (; list; list = list->next)
fprintf (stream, "%s\n", list->name);
}
static void
write_import_file (stream)
FILE *stream;
{
struct id *list = imports.first;
fprintf (stream, "%s\n", "#! .");
for (; list; list = list->next)
fprintf (stream, "%s\n", list->name);
}
#endif
#ifdef OBJECT_FORMAT_NONE
static void
scan_prog_file (prog_name, which_pass)
char *prog_name;
enum pass which_pass;
{
void (*int_handler) ();
void (*quit_handler) ();
char *nm_argv[4];
int pid;
int argc = 0;
int pipe_fd[2];
char *p, buf[1024];
FILE *inf;
if (which_pass == PASS_SECOND)
return;
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;
if (pipe (pipe_fd) < 0)
fatal_perror ("pipe");
inf = fdopen (pipe_fd[0], "r");
if (inf == (FILE *) 0)
fatal_perror ("fdopen");
if (vflag)
{
char **p_argv;
char *str;
for (p_argv = &nm_argv[0]; (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_STRING);
if (pid == 0)
{
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 ("execvp %s", nm_file_name);
}
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, "\nnm output with constructors/destructors.\n");
while (fgets (buf, sizeof buf, inf) != (char *) 0)
{
int ch, ch2;
char *name, *end;
for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++)
if (ch == ' ' && p[1] == 'U' && p[2] == ' ')
break;
if (ch != '_')
continue;
name = p;
for (end = p; (ch2 = *end) != '\0' && !ISSPACE (ch2) && ch2 != '|';
end++)
continue;
*end = '\0';
switch (is_ctor_dtor (name))
{
case 1:
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;
case 5:
if (which_pass != PASS_LIB)
add_to_list (&frame_tables, name);
break;
default:
continue;
}
if (debug)
fprintf (stderr, "\t%s\n", buf);
}
if (debug)
fprintf (stderr, "\n");
if (fclose (inf) != 0)
fatal_perror ("fclose");
do_wait (nm_file_name);
signal (SIGINT, int_handler);
#ifdef SIGQUIT
signal (SIGQUIT, quit_handler);
#endif
}
#if SUNOS4_SHARED_LIBRARIES
#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>
unsigned object;
unsigned objsize;
char * code;
char * data;
struct nlist *symtab;
struct link_dynamic *ld;
struct link_dynamic_2 *ld_2;
struct head libraries;
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);
}
static char *libname;
static int
libselect (d)
struct direct *d;
{
return (strncmp (libname, d->d_name, strlen (libname)) == 0);
}
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)
{
if (*e1 == '.' && e1[1] && ISDIGIT (e1[1]))
return 1;
else
return -1;
}
else if (*e2)
{
if (*e2 == '.' && e2[1] && ISDIGIT (e2[1]))
return -1;
else
return 1;
}
else
return 0;
}
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;
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;
}
}
*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)
notice ("not found\n");
else
fatal ("dynamic dependency %s not found", name);
}
}
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)
{
ld = (struct link_dynamic *) (symtab->n_value + code);
base = code;
}
else
{
ld = (struct link_dynamic *) data;
base = code-PAGSIZ;
}
if (debug)
notice ("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");
for (list = libraries.first; list; list = list->next)
scan_prog_file (list->name, PASS_LIB);
}
#else
#ifdef LDD_SUFFIX
static void
scan_libraries (prog_name)
char *prog_name;
{
static struct head libraries;
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 (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");
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);
pid = vfork ();
if (pid == -1)
fatal_perror (VFORK_STRING);
if (pid == 0)
{
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 ("execv %s", ldd_file_name);
}
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)
notice ("\nldd output with constructors/destructors.\n");
while (fgets (buf, sizeof buf, inf) != (char *) 0)
{
int ch, ch2;
char *name, *end, *p = buf;
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);
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");
do_wait (ldd_file_name);
signal (SIGINT, int_handler);
#ifdef SIGQUIT
signal (SIGQUIT, quit_handler);
#endif
for (list = libraries.first; list; list = list->next)
scan_prog_file (list->name, PASS_LIB);
}
#endif
#endif
#endif
#ifdef OBJECT_FORMAT_COFF
#if defined(EXTENDED_COFF)
# define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
# define GCC_SYMENT SYMR
# define GCC_OK_SYMBOL(X) ((X).st == stProc || (X).st == stGlobal)
# define GCC_SYMINC(X) (1)
# define GCC_SYMZERO(X) (SYMHEADER(X).isymMax)
# define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0)
#else
# define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
# define GCC_SYMENT SYMENT
# define GCC_OK_SYMBOL(X) \
(((X).n_sclass == C_EXT) && \
((X).n_scnum > N_UNDEF) && \
(((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) || \
((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT)))
# define GCC_UNDEF_SYMBOL(X) \
(((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF))
# define GCC_SYMINC(X) ((X).n_numaux+1)
# define GCC_SYMZERO(X) 0
# define GCC_CHECK_HDR(X) \
((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
|| (HEADER (X).f_magic == 0757 && aix64_flag))
#endif
extern char *ldgetname ();
static void
scan_prog_file (prog_name, which_pass)
char *prog_name;
enum pass which_pass;
{
LDFILE *ldptr = NULL;
int sym_index, sym_count;
int is_shared = 0;
#ifdef COLLECT_EXPORT_LIST
int import_flag = (which_pass == PASS_OBJ ? 0 : use_import_list (prog_name));
#endif
if (which_pass != PASS_FIRST && which_pass != PASS_OBJ)
return;
#ifdef COLLECT_EXPORT_LIST
if (which_pass == PASS_FIRST && ignore_library (prog_name))
return;
do
{
#endif
if ((ldptr = ldopen (prog_name, ldptr)) != NULL)
{
if (! MY_ISCOFF (HEADER (ldptr).f_magic))
fatal ("%s: not a COFF file", prog_name);
if (GCC_CHECK_HDR (ldptr))
{
sym_count = GCC_SYMBOLS (ldptr);
sym_index = GCC_SYMZERO (ldptr);
#ifdef COLLECT_EXPORT_LIST
is_shared = HEADER (ldptr).f_flags & F_SHROBJ;
#endif
while (sym_index < sym_count)
{
GCC_SYMENT symbol;
if (ldtbread (ldptr, sym_index, &symbol) <= 0)
break;
sym_index += GCC_SYMINC (symbol);
if (GCC_OK_SYMBOL (symbol))
{
char *name;
if ((name = ldgetname (ldptr, &symbol)) == NULL)
continue;
#ifdef XCOFF_DEBUGGING_INFO
if (*name == '.')
++name;
#endif
switch (is_ctor_dtor (name))
{
case 1:
if (! is_shared) add_to_list (&constructors, name);
#ifdef COLLECT_EXPORT_LIST
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
else
if (import_flag
&& is_in_list (name, undefined.first))
add_to_list (&imports, name);
#endif
break;
case 2:
if (! is_shared) add_to_list (&destructors, name);
#ifdef COLLECT_EXPORT_LIST
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
else
if (import_flag
&& is_in_list (name, undefined.first))
add_to_list (&imports, name);
#endif
break;
#ifdef COLLECT_EXPORT_LIST
case 3:
if (is_shared)
add_to_list (&constructors, name);
break;
case 4:
if (is_shared)
add_to_list (&destructors, name);
break;
#endif
case 5:
if (! is_shared)
add_to_list (&frame_tables, name);
break;
default:
#ifdef COLLECT_EXPORT_LIST
if (shared_obj)
{
if (which_pass == PASS_OBJ && (! export_flag))
add_to_list (&exports, name);
else if (! is_shared && which_pass == PASS_FIRST
&& import_flag
&& is_in_list(name, undefined.first))
add_to_list (&imports, name);
}
#endif
continue;
}
#if !defined(EXTENDED_COFF)
if (debug)
fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n",
symbol.n_scnum, symbol.n_sclass,
(symbol.n_type ? "0" : ""), symbol.n_type,
name);
#else
if (debug)
fprintf (stderr,
"\tiss = %5d, value = %5ld, index = %5d, name = %s\n",
symbol.iss, (long) symbol.value, symbol.index, name);
#endif
}
#ifdef COLLECT_EXPORT_LIST
else if (shared_obj && GCC_UNDEF_SYMBOL (symbol))
{
char *name;
if ((name = ldgetname (ldptr, &symbol)) == NULL)
continue;
if (*name == '.')
++name;
add_to_list (&undefined, name);
}
#endif
}
}
#ifdef COLLECT_EXPORT_LIST
else
{
if (debug)
fprintf (stderr, "%s : magic=%o aix64=%d mismatch\n",
prog_name, HEADER (ldptr).f_magic, aix64_flag);
}
#endif
}
else
{
fatal ("%s: cannot open as COFF file", prog_name);
}
#ifdef COLLECT_EXPORT_LIST
}
while (ldclose (ldptr) == FAILURE);
#else
(void) ldclose(ldptr);
#endif
}
#ifdef COLLECT_EXPORT_LIST
static int
use_import_list (prog_name)
char *prog_name;
{
char *p;
if (! shared_obj) return 0;
p = strstr (prog_name, "libgcc.a");
if (p != 0 && (strlen (p) == sizeof ("libgcc.a") - 1))
return 1;
return 0;
}
static char *
resolve_lib_name (name)
char *name;
{
char *lib_buf;
int i, j, l = 0;
for (i = 0; libpaths[i]; i++)
if (libpaths[i]->max_len > l)
l = libpaths[i]->max_len;
lib_buf = xmalloc (l + strlen(name) + 10);
for (i = 0; libpaths[i]; i++)
{
struct prefix_list *list = libpaths[i]->plist;
for (; list; list = list->next)
{
for (j = 0; libexts[j]; j++)
{
char *p = "";
if (list->prefix[strlen(list->prefix)-1] != '/')
p = "/";
sprintf (lib_buf, "%s%slib%s.%s",
list->prefix, p, name, libexts[j]);
if (debug) fprintf (stderr, "searching for: %s\n", lib_buf);
if (file_exists (lib_buf))
{
if (debug) fprintf (stderr, "found: %s\n", lib_buf);
return (lib_buf);
}
}
}
}
if (debug)
fprintf (stderr, "not found\n");
else
fatal ("Library lib%s not found", name);
return (NULL);
}
static char* aix_std_libs[] = {
"/unix",
"/lib/libc.a",
"/lib/libc_r.a",
"/usr/lib/libc.a",
"/usr/lib/libc_r.a",
"/usr/lib/threads/libc.a",
"/usr/ccs/lib/libc.a",
"/usr/ccs/lib/libc_r.a",
NULL
};
static int
ignore_library (name)
char *name;
{
char **p = &aix_std_libs[0];
while (*p++ != NULL)
if (! strcmp (name, *p)) return 1;
return 0;
}
#endif
#endif
#ifdef OBJECT_FORMAT_ROSE
typedef union load_union
{
ldc_header_t hdr;
load_cmd_map_command_t map;
interpreter_command_t iprtr;
strings_command_t str;
region_command_t region;
reloc_command_t reloc;
package_command_t pkg;
symbols_command_t sym;
entry_command_t ent;
gen_info_command_t info;
func_table_command_t func;
} load_union_t;
typedef struct load_all
{
load_union_t *load;
char *section;
} load_all_t;
struct file_info
{
char *start;
char *name;
long size;
long rounded_size;
int fd;
int rw;
int use_mmap;
};
extern int decode_mach_o_hdr ();
extern int encode_mach_o_hdr ();
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 *));
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 ("open %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);
#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 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);
for (i = 0; i < hdr.moh_n_load_cmds; i++)
{
load_union_t *load_hdr;
load_cmd = load_end++;
load_hdr = (load_union_t *) (obj + offset);
if (rw)
{
load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size);
bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size);
load_hdr = ptr;
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 (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED)
{
load_end--;
hdr.moh_n_load_cmds--;
}
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 = "unknown";
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;
}
notice ("\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;
if (name[0] != '_')
continue;
if (rw)
{
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;
}
else
{
switch (is_ctor_dtor (name))
{
case 1:
add_to_list (&constructors, name);
break;
case 2:
add_to_list (&destructors, name);
break;
default:
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");
if (rw)
{
load_union_t *load_map;
size_t size;
if (cmd_strings == -1)
fatal ("no cmd_strings found");
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)
notice ("\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));
if (debug)
notice ("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);
status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR);
if (status != MO_HDR_CONV_SUCCESS)
bad_header (status);
if (debug)
notice ("writing load commands.\n\n");
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);
bcopy ((char *) load_hdr, (char *) (obj + offset), size);
offset += size;
}
}
end_file (obj_file);
if (close (prog_fd))
fatal_perror ("close %s", prog_name);
if (debug)
fprintf (stderr, "\n");
}
static void
add_func_table (hdr_p, load_array, sym, type)
mo_header_t *hdr_p;
load_all_t *load_array;
symbol_info_t *sym;
int type;
{
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;
hdr_p->moh_flags |= MOH_UNRESOLVED_F;
load_cmd = &load_array[load_index];
load_cmd->load = ptr;
load_cmd->section = (char *) 0;
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;
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;
}
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)
notice ("%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);
}
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;
}
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)
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;
}
static void
bad_header (status)
int status;
{
switch (status)
{
case MO_ERROR_BAD_MAGIC: fatal ("bad magic number");
case MO_ERROR_BAD_HDR_VERS: fatal ("bad header version");
case MO_ERROR_BAD_RAW_HDR_VERS: fatal ("bad raw header version");
case MO_ERROR_BUF2SML: fatal ("raw header buffer too small");
case MO_ERROR_OLD_RAW_HDR_FILE: fatal ("old raw header file");
case MO_ERROR_UNSUPPORTED_VERS: fatal ("unsupported version");
default:
fatal ("unknown {de,en}code_mach_o_hdr return value %d", status);
}
}
static struct file_info *
read_file (name, fd, rw)
char *name;
int fd;
int rw;
{
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
{
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 %s 0", 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;
}
static void
end_file (ptr)
struct file_info *ptr;
{
#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
{
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 %s 0", ptr->name);
len = write (ptr->fd, ptr->start, ptr->size);
if (len < 0)
fatal_perror ("write %s", ptr->name);
if (len != ptr->size)
fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name);
}
free (ptr->start);
}
free (ptr);
}
#endif