/* Routines required for instrumenting a program. */
/* Compile this one with gcc. */
/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
int error = 0;
gcov_unsigned_t tag, length;
gcov_position_t summary_pos = 0;
+ gcov_position_t eof_pos = 0;
memset (&this_object, 0, sizeof (this_object));
memset (&object, 0, sizeof (object));
{
fprintf (stderr, "profiling:%s:Not a gcov data file\n",
gi_ptr->filename);
- read_fatal:;
- gcov_close ();
- continue;
+ goto read_fatal;
}
length = gcov_read_unsigned ();
if (!gcov_version (gi_ptr, length))
length = gcov_read_unsigned ();
if (length != gi_ptr->stamp)
- {
- /* Read from a different compilation. Overwrite the
- file. */
- gcov_truncate ();
- goto rewrite;
- }
+ /* Read from a different compilation. Overwrite the file. */
+ goto rewrite;
/* Merge execution counts for each function. */
for (f_ix = 0; f_ix < gi_ptr->n_functions; f_ix++)
/* Check program & object summary */
while (1)
{
- gcov_position_t base = gcov_position ();
int is_program;
+ eof_pos = gcov_position ();
tag = gcov_read_unsigned ();
if (!tag)
break;
+
length = gcov_read_unsigned ();
is_program = tag == GCOV_TAG_PROGRAM_SUMMARY;
if (length != GCOV_TAG_SUMMARY_LENGTH
goto read_error;
if (is_program && program.checksum == gcov_crc32)
{
- summary_pos = base;
+ summary_pos = eof_pos;
goto rewrite;
}
}
}
+ goto rewrite;
- if (!gcov_is_eof ())
- {
- read_error:;
- fprintf (stderr, error < 0 ? "profiling:%s:Overflow merging\n"
- : "profiling:%s:Error merging\n", gi_ptr->filename);
- goto read_fatal;
- }
+ read_error:;
+ fprintf (stderr, error < 0 ? "profiling:%s:Overflow merging\n"
+ : "profiling:%s:Error merging\n", gi_ptr->filename);
+
+ read_fatal:;
+ gcov_close ();
+ continue;
+
rewrite:;
gcov_rewrite ();
if (!summary_pos)
gcov_write_summary (GCOV_TAG_OBJECT_SUMMARY, &object);
/* Generate whole program statistics. */
- gcov_seek (summary_pos);
+ if (eof_pos)
+ gcov_seek (eof_pos);
gcov_write_summary (GCOV_TAG_PROGRAM_SUMMARY, &program);
+ if (!summary_pos)
+ gcov_write_unsigned (0);
if ((error = gcov_close ()))
fprintf (stderr, error < 0 ?
"profiling:%s:Overflow writing\n" :
}
#endif /* L_gcov_merge_delta */
+#ifdef L_gcov_fork
+/* A wrapper for the fork function. Flushes the accumulated profiling data, so
+ that they are not counted twice. */
+
+pid_t
+__gcov_fork (void)
+{
+ __gcov_flush ();
+ return fork ();
+}
+#endif
+
+#ifdef L_gcov_execl
+/* A wrapper for the execl function. Flushes the accumulated profiling data, so
+ that they are not lost. */
+
+int
+__gcov_execl (const char *path, const char *arg, ...)
+{
+ va_list ap, aq;
+ unsigned i, length;
+ char **args;
+
+ __gcov_flush ();
+
+ va_start (ap, arg);
+ va_copy (aq, ap);
+
+ length = 2;
+ while (va_arg (ap, char *))
+ length++;
+ va_end (ap);
+
+ args = alloca (length * sizeof (void *));
+ args[0] = (char *) arg;
+ for (i = 1; i < length; i++)
+ args[i] = va_arg (aq, char *);
+ va_end (aq);
+
+ return execv (path, args);
+}
+#endif
+
+#ifdef L_gcov_execlp
+/* A wrapper for the execlp function. Flushes the accumulated profiling data, so
+ that they are not lost. */
+
+int
+__gcov_execlp (const char *path, const char *arg, ...)
+{
+ va_list ap, aq;
+ unsigned i, length;
+ char **args;
+
+ __gcov_flush ();
+
+ va_start (ap, arg);
+ va_copy (aq, ap);
+
+ length = 2;
+ while (va_arg (ap, char *))
+ length++;
+ va_end (ap);
+
+ args = alloca (length * sizeof (void *));
+ args[0] = (char *) arg;
+ for (i = 1; i < length; i++)
+ args[i] = va_arg (aq, char *);
+ va_end (aq);
+
+ return execvp (path, args);
+}
+#endif
+
+#ifdef L_gcov_execle
+/* A wrapper for the execle function. Flushes the accumulated profiling data, so
+ that they are not lost. */
+
+int
+__gcov_execle (const char *path, const char *arg, ...)
+{
+ va_list ap, aq;
+ unsigned i, length;
+ char **args;
+ char **envp;
+
+ __gcov_flush ();
+
+ va_start (ap, arg);
+ va_copy (aq, ap);
+
+ length = 2;
+ while (va_arg (ap, char *))
+ length++;
+ va_end (ap);
+
+ args = alloca (length * sizeof (void *));
+ args[0] = (char *) arg;
+ for (i = 1; i < length; i++)
+ args[i] = va_arg (aq, char *);
+ envp = va_arg (aq, char **);
+ va_end (aq);
+
+ return execve (path, args, envp);
+}
+#endif
+
+#ifdef L_gcov_execv
+/* A wrapper for the execv function. Flushes the accumulated profiling data, so
+ that they are not lost. */
+
+int
+__gcov_execv (const char *path, char *const argv[])
+{
+ __gcov_flush ();
+ return execv (path, argv);
+}
+#endif
+
+#ifdef L_gcov_execvp
+/* A wrapper for the execvp function. Flushes the accumulated profiling data, so
+ that they are not lost. */
+
+int
+__gcov_execvp (const char *path, char *const argv[])
+{
+ __gcov_flush ();
+ return execvp (path, argv);
+}
+#endif
+
+#ifdef L_gcov_execve
+/* A wrapper for the execve function. Flushes the accumulated profiling data, so
+ that they are not lost. */
+
+int
+__gcov_execve (const char *path, char *const argv[], char *const envp[])
+{
+ __gcov_flush ();
+ return execve (path, argv, envp);
+}
+#endif
#endif /* inhibit_libc */
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