#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include <signal.h>
#if ! defined( SIGCHLD ) && defined( SIGCLD )
# define SIGCHLD SIGCLD
#endif
#ifndef LIBRARY_PATH_ENV
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#endif
#define COLLECT
#include "collect2.h"
#include "demangle.h"
#include "obstack.h"
#include "intl.h"
#include "version.h"
#ifdef CROSS_DIRECTORY_STRUCTURE
#undef OBJECT_FORMAT_COFF
#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)
#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_NONE
#ifndef NM_FLAGS
#define NM_FLAGS "-n"
#endif
#endif
#ifndef NAME__MAIN
#define NAME__MAIN "__main"
#endif
#define DEFAULT_INIT_PRIORITY 65535
#ifndef COLLECT_SHARED_INIT_FUNC
#define COLLECT_SHARED_INIT_FUNC(STREAM, FUNC) \
fprintf ((STREAM), "void _GLOBAL__DI() {\n\t%s();\n}\n", (FUNC))
#endif
#ifndef COLLECT_SHARED_FINI_FUNC
#define COLLECT_SHARED_FINI_FUNC(STREAM, FUNC) \
fprintf ((STREAM), "void _GLOBAL__DD() {\n\t%s();\n}\n", (FUNC))
#endif
#ifdef LDD_SUFFIX
#define SCAN_LIBRARIES
#endif
#ifdef USE_COLLECT2
int do_collecting = 1;
#else
int do_collecting = 0;
#endif
int no_demangle;
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
};
int vflag;
static int rflag;
static int strip_flag;
static const char *demangle_flag;
#ifdef COLLECT_EXPORT_LIST
static int export_flag;
static int aix64_flag;
static int aixrtl_flag;
#endif
int debug;
static int shared_obj;
static const char *c_file;
static const char *o_file;
#ifdef COLLECT_EXPORT_LIST
static const char *export_file;
#endif
const char *ldout;
const char *lderrout;
static const char *output_file;
static const char *nm_file_name;
#ifdef LDD_SUFFIX
static const char *ldd_file_name;
#endif
static const char *strip_file_name;
const char *c_file_name;
static char *initname, *fininame;
static struct head constructors;
static struct head destructors;
#ifdef COLLECT_EXPORT_LIST
static struct head exports;
#endif
static struct head frame_tables;
struct obstack temporary_obstack;
char * temporary_firstobj;
struct prefix_list
{
const char *prefix;
struct prefix_list *next;
};
struct path_prefix
{
struct prefix_list *plist;
int max_len;
const 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};
#endif
static void handler (int);
static int is_ctor_dtor (const char *);
static char *find_a_file (struct path_prefix *, const char *);
static void add_prefix (struct path_prefix *, const char *);
static void prefix_from_env (const char *, struct path_prefix *);
static void prefix_from_string (const char *, struct path_prefix *);
static void do_wait (const char *, struct pex_obj *);
static void fork_execute (const char *, char **);
static void maybe_unlink (const char *);
static void add_to_list (struct head *, const char *);
static int extract_init_priority (const char *);
static void sort_ids (struct head *);
static void write_list (FILE *, const char *, struct id *);
#ifdef COLLECT_EXPORT_LIST
static void dump_list (FILE *, const char *, struct id *);
#endif
#if 0
static void dump_prefix_list (FILE *, const char *, struct prefix_list *);
#endif
static void write_list_with_asm (FILE *, const char *, struct id *);
static void write_c_file (FILE *, const char *);
static void write_c_file_stat (FILE *, const char *);
#ifndef LD_INIT_SWITCH
static void write_c_file_glob (FILE *, const char *);
#endif
static void scan_prog_file (const char *, enum pass);
#ifdef SCAN_LIBRARIES
static void scan_libraries (const char *);
#endif
#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
static int is_in_args (const char *, const char **, const char **);
#endif
#ifdef COLLECT_EXPORT_LIST
#if 0
static int is_in_list (const char *, struct id *);
#endif
static void write_aix_file (FILE *, struct id *);
static char *resolve_lib_name (const char *);
#endif
static char *extract_string (const char **);
void
collect_exit (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);
#endif
if (ldout != 0 && ldout[0])
{
dump_file (ldout, stdout);
maybe_unlink (ldout);
}
if (lderrout != 0 && lderrout[0])
{
dump_file (lderrout, stderr);
maybe_unlink (lderrout);
}
if (status != 0 && output_file != 0 && output_file[0])
maybe_unlink (output_file);
exit (status);
}
void
notice (const char *cmsgid, ...)
{
va_list ap;
va_start (ap, cmsgid);
vfprintf (stderr, _(cmsgid), ap);
va_end (ap);
}
void
fatal_perror (const char * cmsgid, ...)
{
int e = errno;
va_list ap;
va_start (ap, cmsgid);
fprintf (stderr, "collect2: ");
vfprintf (stderr, _(cmsgid), ap);
fprintf (stderr, ": %s\n", xstrerror (e));
va_end (ap);
collect_exit (FATAL_EXIT_CODE);
}
void
fatal (const char * cmsgid, ...)
{
va_list ap;
va_start (ap, cmsgid);
fprintf (stderr, "collect2: ");
vfprintf (stderr, _(cmsgid), ap);
fprintf (stderr, "\n");
va_end (ap);
collect_exit (FATAL_EXIT_CODE);
}
void
error (const char * gmsgid, ...)
{
va_list ap;
va_start (ap, gmsgid);
fprintf (stderr, "collect2: ");
vfprintf (stderr, _(gmsgid), ap);
fprintf (stderr, "\n");
va_end(ap);
}
void
fancy_abort (const char *file, int line, const char *func)
{
fatal ("internal gcc abort in %s, at %s:%d", func, file, line);
}
static void
handler (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);
if (lderrout != 0 && lderrout[0])
maybe_unlink (lderrout);
#ifdef COLLECT_EXPORT_LIST
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
#endif
signal (signo, SIG_DFL);
raise (signo);
}
int
file_exists (const char *name)
{
return access (name, R_OK) == 0;
}
static char *
extract_string (const char **pp)
{
const 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 XOBFINISH (&temporary_obstack, char *);
}
void
dump_file (const char *name, FILE *to)
{
FILE *stream = fopen (name, "r");
if (stream == 0)
return;
while (1)
{
int c;
while (c = getc (stream),
c != EOF && (ISIDNUM (c) || c == '$' || c == '.'))
obstack_1grow (&temporary_obstack, c);
if (obstack_object_size (&temporary_obstack) > 0)
{
const char *word, *p;
char *result;
obstack_1grow (&temporary_obstack, '\0');
word = XOBFINISH (&temporary_obstack, const char *);
if (*word == '.')
++word, putc ('.', to);
p = word;
if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX)))
p += strlen (USER_LABEL_PREFIX);
#ifdef HAVE_LD_DEMANGLE
result = 0;
#else
if (no_demangle)
result = 0;
else
result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE);
#endif
if (result)
{
int diff;
fputs (result, to);
diff = strlen (word) - strlen (result);
while (diff > 0 && c == ' ')
--diff, putc (' ', to);
while (diff < 0 && c == ' ')
++diff, c = getc (stream);
free (result);
}
else
fputs (word, to);
fflush (to);
obstack_free (&temporary_obstack, temporary_firstobj);
}
if (c == EOF)
break;
putc (c, to);
}
fclose (stream);
}
static int
is_ctor_dtor (const char *s)
{
struct names { const char *const name; const int len; const int ret;
const int two_underscores; };
const struct names *p;
int ch;
const char *orig_s = s;
static const struct names special[] = {
#ifndef NO_DOLLAR_IN_LABEL
{ "GLOBAL__I$", sizeof ("GLOBAL__I$")-1, 1, 0 },
{ "GLOBAL__D$", sizeof ("GLOBAL__D$")-1, 2, 0 },
#else
#ifndef NO_DOT_IN_LABEL
{ "GLOBAL__I.", sizeof ("GLOBAL__I.")-1, 1, 0 },
{ "GLOBAL__D.", sizeof ("GLOBAL__D.")-1, 2, 0 },
#endif
#endif
{ "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
{ "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
{ "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, 5, 0 },
{ "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
{ "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
{ 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;
}
static struct path_prefix cpath, path;
#ifdef CROSS_DIRECTORY_STRUCTURE
static const char *const target_machine = TARGET_MACHINE;
#endif
static char *
find_a_file (struct path_prefix *pprefix, const 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 HOST_EXECUTABLE_SUFFIX
len += strlen (HOST_EXECUTABLE_SUFFIX);
#endif
temp = XNEWVEC (char, 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 HOST_EXECUTABLE_SUFFIX
strcpy (temp, name);
strcat (temp, HOST_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)
{
struct stat st;
strcpy (temp, pl->prefix);
strcat (temp, name);
if (stat (temp, &st) >= 0
&& ! S_ISDIR (st.st_mode)
&& access (temp, X_OK) == 0)
return temp;
#ifdef HOST_EXECUTABLE_SUFFIX
strcat (temp, HOST_EXECUTABLE_SUFFIX);
if (stat (temp, &st) >= 0
&& ! S_ISDIR (st.st_mode)
&& 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 (struct path_prefix *pprefix, const 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 = XNEW (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 (const char *env, struct path_prefix *pprefix)
{
const char *p;
GET_ENVIRONMENT (p, env);
if (p)
prefix_from_string (p, pprefix);
}
static void
prefix_from_string (const char *p, struct path_prefix *pprefix)
{
const char *startp, *endp;
char *nstore = XNEWVEC (char, 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 (! IS_DIR_SEPARATOR (endp[-1]))
{
nstore[endp-startp] = DIR_SEPARATOR;
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 (int argc, char **argv)
{
static const char *const ld_suffix = "ld";
static const char *const real_ld_suffix = "real-ld";
static const char *const collect_ld_suffix = "collect-ld";
static const char *const nm_suffix = "nm";
static const char *const gnm_suffix = "gnm";
#ifdef LDD_SUFFIX
static const char *const ldd_suffix = LDD_SUFFIX;
#endif
static const char *const strip_suffix = "strip";
static const char *const gstrip_suffix = "gstrip";
#ifdef CROSS_DIRECTORY_STRUCTURE
const char *const full_ld_suffix =
concat(target_machine, "-", ld_suffix, NULL);
const char *const full_nm_suffix =
concat (target_machine, "-", nm_suffix, NULL);
const char *const full_gnm_suffix =
concat (target_machine, "-", gnm_suffix, NULL);
#ifdef LDD_SUFFIX
const char *const full_ldd_suffix =
concat (target_machine, "-", ldd_suffix, NULL);
#endif
const char *const full_strip_suffix =
concat (target_machine, "-", strip_suffix, NULL);
const char *const full_gstrip_suffix =
concat (target_machine, "-", gstrip_suffix, NULL);
#else
const char *const full_ld_suffix = ld_suffix;
const char *const full_nm_suffix = nm_suffix;
const char *const full_gnm_suffix = gnm_suffix;
#ifdef LDD_SUFFIX
const char *const full_ldd_suffix = ldd_suffix;
#endif
const char *const full_strip_suffix = strip_suffix;
const char *const full_gstrip_suffix = gstrip_suffix;
#endif
const char *arg;
FILE *outf;
#ifdef COLLECT_EXPORT_LIST
FILE *exportf;
#endif
const char *ld_file_name;
const char *p;
char **c_argv;
const char **c_ptr;
char **ld1_argv;
const char **ld1;
char **ld2_argv;
const char **ld2;
char **object_lst;
const char **object;
int first_file;
int num_c_args = argc+9;
no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
putenv (xstrdup ("COLLECT_NO_DEMANGLE="));
#if defined (COLLECT2_HOST_INITIALIZATION)
COLLECT2_HOST_INITIALIZATION;
#endif
#ifdef SIGCHLD
signal (SIGCHLD, SIG_DFL);
#endif
unlock_std_streams ();
gcc_init_libintl ();
ld1 = (const char **)(ld1_argv = xcalloc(sizeof (char *), argc+4));
ld2 = (const char **)(ld2_argv = xcalloc(sizeof (char *), argc+11));
object = (const char **)(object_lst = 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);
temporary_firstobj = obstack_alloc (&temporary_obstack, 0);
#ifndef HAVE_LD_DEMANGLE
current_demangling_style = auto_demangling;
#endif
p = getenv ("COLLECT_GCC_OPTIONS");
while (p && *p)
{
const 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 += 5;
c_ptr = (const char **) (c_argv = 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);
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_DIRECTORY_STRUCTURE
c_file_name = concat (target_machine, "-gcc", NULL);
#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");
#endif
ldout = make_temp_file (".ld");
lderrout = make_temp_file (".le");
*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)
{
const char *q = extract_string (&p);
if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
*c_ptr++ = xstrdup (q);
if (strcmp (q, "-EL") == 0 || strcmp (q, "-EB") == 0)
*c_ptr++ = xstrdup (q);
if (strcmp (q, "-shared") == 0)
shared_obj = 1;
if (*q == '-' && q[1] == 'B')
{
*c_ptr++ = xstrdup (q);
if (q[2] == 0)
{
q = extract_string (&p);
*c_ptr++ = xstrdup (q);
}
}
}
obstack_free (&temporary_obstack, temporary_firstobj);
*c_ptr++ = "-fno-profile-arcs";
*c_ptr++ = "-fno-test-coverage";
*c_ptr++ = "-fno-branch-probabilities";
*c_ptr++ = "-fno-exceptions";
*c_ptr++ = "-w";
first_file = 1;
#ifdef HAVE_LD_DEMANGLE
if (!demangle_flag && !no_demangle)
demangle_flag = "--demangle";
if (demangle_flag)
*ld1++ = *ld2++ = demangle_flag;
#endif
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;
else if (arg[2] == 'r' && arg[3] == 't' && arg[4] == 'l')
aixrtl_flag = 1;
break;
#endif
case 'd':
if (!strcmp (arg, "-debug"))
{
ld1--;
ld2--;
}
if (!strcmp (arg, "-dynamic-linker") && argv[1])
{
++argv;
*ld1++ = *ld2++ = *argv;
}
break;
case 'l':
if (first_file)
{
first_file = 0;
ld2--;
*ld2++ = o_file;
*ld2++ = arg;
}
#ifdef COLLECT_EXPORT_LIST
{
const char *s = resolve_lib_name (arg+2);
add_to_list (&libs, s);
}
#endif
break;
#ifdef COLLECT_EXPORT_LIST
case 'L':
add_prefix (&cmdline_lib_dirs, arg+2);
break;
#else
#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
case 'L':
if (is_in_args (arg, (const char **) ld1_argv, ld1-1))
--ld1;
break;
#endif
#endif
case 'o':
if (arg[2] == '\0')
output_file = *ld1++ = *ld2++ = *++argv;
else if (1
#ifdef SWITCHES_NEED_SPACES
&& ! strchr (SWITCHES_NEED_SPACES, arg[1])
#endif
)
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;
case '-':
if (strcmp (arg, "--no-demangle") == 0)
{
demangle_flag = arg;
no_demangle = 1;
ld1--;
ld2--;
}
else if (strncmp (arg, "--demangle", 10) == 0)
{
demangle_flag = arg;
no_demangle = 0;
#ifndef HAVE_LD_DEMANGLE
if (arg[10] == '=')
{
enum demangling_styles style
= cplus_demangle_name_to_style (arg+11);
if (style == unknown_demangling)
error ("unknown demangling style '%s'", arg+11);
else
current_demangling_style = style;
}
#endif
ld1--;
ld2--;
}
break;
}
}
else if ((p = strrchr (arg, '.')) != (char *) 0
&& (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0
|| strcmp (p, ".so") == 0 || strcmp (p, ".lo") == 0
|| strcmp (p, ".obj") == 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' || p[1] == 'l')
*object++ = arg;
#ifdef COLLECT_EXPORT_LIST
else
{
add_to_list (&libs, arg);
}
#endif
}
}
#ifdef COLLECT_EXPORT_LIST
if (debug)
{
fprintf (stderr, "List of libraries:\n");
dump_list (stderr, "\t", libs.first);
}
{
const char **export_object_lst = (const char **)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);
}
if (exports.first)
{
char *buf = concat ("-bE:", export_file, NULL);
*ld1++ = buf;
*ld2++ = buf;
exportf = fopen (export_file, "w");
if (exportf == (FILE *) 0)
fatal_perror ("fopen %s", export_file);
write_aix_file (exportf, exports.first);
if (fclose (exportf))
fatal_perror ("fclose %s", export_file);
}
#endif
*c_ptr++ = c_file;
*c_ptr = *ld1 = *object = (char *) 0;
if (vflag)
{
notice ("collect2 version %s", version_string);
#ifdef TARGET_VERSION
TARGET_VERSION;
#endif
fprintf (stderr, "\n");
}
if (debug)
{
const 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_ENV);
if (ptr)
fprintf (stderr, "%-20s= %s\n", LIBRARY_PATH_ENV, 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);
#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 **real_strip_argv = XCNEWVEC (char *, 3);
const char ** strip_argv = (const char **) real_strip_argv;
strip_argv[0] = strip_file_name;
strip_argv[1] = output_file;
strip_argv[2] = (char *) 0;
fork_execute ("strip", real_strip_argv);
}
#ifdef COLLECT_EXPORT_LIST
maybe_unlink (export_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
#ifdef COLLECT_EXPORT_LIST
*ld2++ = concat (LD_INIT_SWITCH, ":", initname, ":", fininame, NULL);
#else
*ld2++ = LD_INIT_SWITCH;
*ld2++ = initname;
*ld2++ = LD_FINI_SWITCH;
*ld2++ = fininame;
#endif
#endif
#ifdef COLLECT_EXPORT_LIST
if (shared_obj)
{
if (! exports.first)
*ld2++ = concat ("-bE:", export_file, NULL);
#ifndef LD_INIT_SWITCH
add_to_list (&exports, initname);
add_to_list (&exports, fininame);
add_to_list (&exports, "_GLOBAL__DI");
add_to_list (&exports, "_GLOBAL__DD");
#endif
exportf = fopen (export_file, "w");
if (exportf == (FILE *) 0)
fatal_perror ("fopen %s", export_file);
write_aix_file (exportf, exports.first);
if (fclose (exportf))
fatal_perror ("fclose %s", export_file);
}
#endif
*ld2 = (char*) 0;
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_aix_file (stderr, exports.first);
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);
#endif
return 0;
}
int
collect_wait (const char *prog, struct pex_obj *pex)
{
int status;
if (!pex_get_status (pex, 1, &status))
fatal_perror ("can't get program status");
pex_free (pex);
if (status)
{
if (WIFSIGNALED (status))
{
int sig = WTERMSIG (status);
error ("%s terminated with signal %d [%s]%s",
prog, sig, strsignal(sig),
WCOREDUMP(status) ? ", core dumped" : "");
collect_exit (FATAL_EXIT_CODE);
}
if (WIFEXITED (status))
return WEXITSTATUS (status);
}
return 0;
}
static void
do_wait (const char *prog, struct pex_obj *pex)
{
int ret = collect_wait (prog, pex);
if (ret != 0)
{
error ("%s returned %d exit status", prog, ret);
collect_exit (ret);
}
}
struct pex_obj *
collect_execute (const char *prog, char **argv, const char *outname,
const char *errname)
{
struct pex_obj *pex;
const char *errmsg;
int err;
if (vflag || debug)
{
char **p_argv;
const 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);
pex = pex_init (0, "collect2", NULL);
if (pex == NULL)
fatal_perror ("pex_init failed");
errmsg = pex_run (pex, PEX_LAST | PEX_SEARCH, argv[0], argv, outname,
errname, &err);
if (errmsg != NULL)
{
if (err != 0)
{
errno = err;
fatal_perror ("%s", errmsg);
}
else
fatal ("%s", errmsg);
}
return pex;
}
static void
fork_execute (const char *prog, char **argv)
{
struct pex_obj *pex;
pex = collect_execute (prog, argv, NULL, NULL);
do_wait (prog, pex);
}
static void
maybe_unlink (const char *file)
{
if (!debug)
unlink_if_ordinary (file);
else
notice ("[Leaving %s]\n", file);
}
static long sequence_number = 0;
static void
add_to_list (struct head *head_ptr, const char *name)
{
struct id *newid = 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 (const 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 (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 (FILE *stream, const char *prefix, struct id *list)
{
while (list)
{
fprintf (stream, "%sx%d,\n", prefix, list->sequence);
list = list->next;
}
}
#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
static int
is_in_args (const char *string, const char **args_begin,
const char **args_end)
{
const char **args_pointer;
for (args_pointer = args_begin; args_pointer != args_end; ++args_pointer)
if (strcmp (string, *args_pointer) == 0)
return 1;
return 0;
}
#endif
#ifdef COLLECT_EXPORT_LIST
#if 0
static int
is_in_list (const char *prefix, struct id *list)
{
while (list)
{
if (!strcmp (prefix, list->name)) return 1;
list = list->next;
}
return 0;
}
#endif
#endif
#ifdef COLLECT_EXPORT_LIST
static void
dump_list (FILE *stream, const 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 (FILE *stream, const 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 (FILE *stream, const 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 (FILE *stream, const char *name ATTRIBUTE_UNUSED)
{
const char *p, *q;
char *prefix, *r;
int frames = (frame_tables.number > 0);
p = strrchr (output_file, '/');
if (p == 0)
p = output_file;
else
p++;
q = p;
while (q)
{
q = strchr (q,'.');
if (q == 0)
{
q = p + strlen (p);
break;
}
else
{
if (strncmp (q, ".so", 3) == 0)
{
q += 3;
break;
}
else
q++;
}
}
prefix = XNEWVEC (char, q - p + 1);
strncpy (prefix, p, q - p);
prefix[q - p] = 0;
for (r = prefix; *r; r++)
if (!ISALNUM ((unsigned char)*r))
*r = '_';
if (debug)
notice ("\nwrite_c_file - output name is %s, prefix is %s\n",
output_file, prefix);
initname = concat ("_GLOBAL__FI_", prefix, NULL);
fininame = concat ("_GLOBAL__FD_", prefix, NULL);
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");
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)
{
COLLECT_SHARED_INIT_FUNC(stream, initname);
COLLECT_SHARED_FINI_FUNC(stream, fininame);
}
}
#ifndef LD_INIT_SWITCH
static void
write_c_file_glob (FILE *stream, const char *name ATTRIBUTE_UNUSED)
{
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 (FILE *stream, const 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_aix_file (FILE *stream, struct id *list)
{
for (; list; list = list->next)
{
fputs (list->name, stream);
putc ('\n', stream);
}
}
#endif
#ifdef OBJECT_FORMAT_NONE
static void
scan_prog_file (const char *prog_name, enum pass which_pass)
{
void (*int_handler) (int);
#ifdef SIGQUIT
void (*quit_handler) (int);
#endif
char *real_nm_argv[4];
const char **nm_argv = (const char **) real_nm_argv;
int argc = 0;
struct pex_obj *pex;
const char *errmsg;
int err;
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 (vflag)
{
const char **p_argv;
const 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);
pex = pex_init (PEX_USE_PIPES, "collect2", NULL);
if (pex == NULL)
fatal_perror ("pex_init failed");
errmsg = pex_run (pex, 0, nm_file_name, real_nm_argv, NULL, NULL, &err);
if (errmsg != NULL)
{
if (err != 0)
{
errno = err;
fatal_perror ("%s", errmsg);
}
else
fatal ("%s", errmsg);
}
int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN);
#endif
inf = pex_read_output (pex, 0);
if (inf == NULL)
fatal_perror ("can't open nm output");
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");
do_wait (nm_file_name, pex);
signal (SIGINT, int_handler);
#ifdef SIGQUIT
signal (SIGQUIT, quit_handler);
#endif
}
#ifdef LDD_SUFFIX
static void
scan_libraries (const char *prog_name)
{
static struct head libraries;
struct id *list;
void (*int_handler) (int);
#ifdef SIGQUIT
void (*quit_handler) (int);
#endif
char *real_ldd_argv[4];
const char **ldd_argv = (const char **) real_ldd_argv;
int argc = 0;
struct pex_obj *pex;
const char *errmsg;
int err;
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 (vflag)
{
const char **p_argv;
const 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);
pex = pex_init (PEX_USE_PIPES, "collect2", NULL);
if (pex == NULL)
fatal_perror ("pex_init failed");
errmsg = pex_run (pex, 0, ldd_file_name, real_ldd_argv, NULL, NULL, &err);
if (errmsg != NULL)
{
if (err != 0)
{
errno = err;
fatal_perror (errmsg);
}
else
fatal (errmsg);
}
int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN);
#endif
inf = pex_read_output (pex, 0);
if (inf == NULL)
fatal_perror ("can't open ldd output");
if (debug)
notice ("\nldd output with constructors/destructors.\n");
while (fgets (buf, sizeof buf, inf) != (char *) 0)
{
int 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");
do_wait (ldd_file_name, pex);
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
#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
# if defined (C_WEAKEXT)
# define GCC_OK_SYMBOL(X) \
(((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \
((X).n_scnum > N_UNDEF) && \
(aix64_flag \
|| (((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_sclass == C_WEAKEXT) && \
((X).n_scnum == N_UNDEF))
# else
# define GCC_OK_SYMBOL(X) \
(((X).n_sclass == C_EXT) && \
((X).n_scnum > N_UNDEF) && \
(aix64_flag \
|| (((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))
# endif
# define GCC_SYMINC(X) ((X).n_numaux+1)
# define GCC_SYMZERO(X) 0
#ifdef _AIX51
# define GCC_CHECK_HDR(X) \
((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
|| (HEADER (X).f_magic == 0767 && aix64_flag))
#else
# define GCC_CHECK_HDR(X) \
((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
|| (HEADER (X).f_magic == 0757 && aix64_flag))
#endif
#endif
#ifdef COLLECT_EXPORT_LIST
static const char *const aix_std_libs[] = {
"/unix",
"/lib/libc.a",
"/lib/libm.a",
"/lib/libc_r.a",
"/lib/libm_r.a",
"/usr/lib/libc.a",
"/usr/lib/libm.a",
"/usr/lib/libc_r.a",
"/usr/lib/libm_r.a",
"/usr/lib/threads/libc.a",
"/usr/ccs/lib/libc.a",
"/usr/ccs/lib/libm.a",
"/usr/ccs/lib/libc_r.a",
"/usr/ccs/lib/libm_r.a",
NULL
};
static int ignore_library (const char *);
static int
ignore_library (const char *name)
{
const char *const *p = &aix_std_libs[0];
while (*p++ != NULL)
if (! strcmp (name, *p)) return 1;
return 0;
}
#endif
#if defined (HAVE_DECL_LDGETNAME) && !HAVE_DECL_LDGETNAME
extern char *ldgetname (LDFILE *, GCC_SYMENT *);
#endif
static void
scan_prog_file (const char *prog_name, enum pass which_pass)
{
LDFILE *ldptr = NULL;
int sym_index, sym_count;
int is_shared = 0;
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 ((char *)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);
#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
#endif
break;
case 2:
if (! is_shared)
add_to_list (&destructors, name);
#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
#endif
break;
#ifdef COLLECT_EXPORT_LIST
case 3:
#ifndef LD_INIT_SWITCH
if (is_shared)
add_to_list (&constructors, name);
#endif
break;
case 4:
#ifndef LD_INIT_SWITCH
if (is_shared)
add_to_list (&destructors, name);
#endif
break;
#endif
case 5:
if (! is_shared)
add_to_list (&frame_tables, name);
#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
#endif
break;
default:
#ifdef COLLECT_EXPORT_LIST
if (shared_obj && !is_shared
&& which_pass == PASS_OBJ && !export_flag)
add_to_list (&exports, name);
#endif
continue;
}
if (debug)
#if !defined(EXTENDED_COFF)
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
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 (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
}
#endif
#ifdef COLLECT_EXPORT_LIST
static char *
resolve_lib_name (const char *name)
{
char *lib_buf;
int i, j, l = 0;
const char * const libexts[2] = {"a", "so"};
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)
{
const char *p = "";
if (list->prefix[strlen(list->prefix)-1] != '/')
p = "/";
for (j = 0; j < 2; j++)
{
sprintf (lib_buf, "%s%slib%s.%s",
list->prefix, p, name,
libexts[(j + aixrtl_flag) % 2]);
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);
}
#endif