/* General utility routines for the remote server for GDB.
- Copyright (C) 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002, 2003,
- 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "server.h"
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#if HAVE_MALLOC_H
-#include <malloc.h>
+
+#ifdef IN_PROCESS_AGENT
+# define PREFIX "ipa: "
+# define TOOLNAME "GDBserver in-process agent"
+#else
+# define PREFIX "gdbserver: "
+# define TOOLNAME "GDBserver"
#endif
/* Generally useful subroutines used throughout the program. */
-static void malloc_failure (size_t size) ATTR_NORETURN;
-
-static void
-malloc_failure (size_t size)
+void
+malloc_failure (long size)
{
- fprintf (stderr, "gdbserver: ran out of memory while trying to allocate %lu bytes\n",
+ fprintf (stderr,
+ PREFIX "ran out of memory while trying to allocate %lu bytes\n",
(unsigned long) size);
exit (1);
}
-/* Allocate memory without fail.
- If malloc fails, this will print a message to stderr and exit. */
-
-void *
-xmalloc (size_t size)
-{
- void *newmem;
-
- if (size == 0)
- size = 1;
- newmem = malloc (size);
- if (!newmem)
- malloc_failure (size);
-
- return newmem;
-}
-
-/* Allocate memory without fail and set it to zero.
- If malloc fails, this will print a message to stderr and exit. */
-
-void *
-xcalloc (size_t nelem, size_t elsize)
-{
- void *newmem;
-
- if (nelem == 0 || elsize == 0)
- nelem = elsize = 1;
-
- newmem = calloc (nelem, elsize);
- if (!newmem)
- malloc_failure (nelem * elsize);
-
- return newmem;
-}
-
-/* Copy a string into a memory buffer.
- If malloc fails, this will print a message to stderr and exit. */
-
-char *
-xstrdup (const char *s)
-{
- char *ret = strdup (s);
- if (ret == NULL)
- malloc_failure (strlen (s) + 1);
- return ret;
-}
-
-/* Free a standard argv vector. */
-
-void
-freeargv (char **vector)
-{
- char **scan;
-
- if (vector != NULL)
- {
- for (scan = vector; *scan != NULL; scan++)
- {
- free (*scan);
- }
- free (vector);
- }
-}
-
/* Print the system error message for errno, and also mention STRING
as the file name for which the error was encountered.
Then return to command level. */
const char *err;
char *combined;
- err = strerror (errno);
+ err = safe_strerror (errno);
if (err == NULL)
err = "unknown error";
error ("%s.", combined);
}
-/* Print an error message and return to command level.
- STRING is the error message, used as a fprintf string,
- and ARG is passed as an argument to it. */
+/* Print an error message and return to top level. */
void
-error (const char *string,...)
+verror (const char *string, va_list args)
{
- extern jmp_buf toplevel;
- va_list args;
- va_start (args, string);
+#ifdef IN_PROCESS_AGENT
fflush (stdout);
vfprintf (stderr, string, args);
fprintf (stderr, "\n");
- longjmp (toplevel, 1);
+ exit (1);
+#else
+ throw_verror (GENERIC_ERROR, string, args);
+#endif
}
-/* Print an error message and exit reporting failure.
- This is for a error that we cannot continue from.
- STRING and ARG are passed to fprintf. */
-
-/* VARARGS */
void
-fatal (const char *string,...)
+vwarning (const char *string, va_list args)
{
- va_list args;
- va_start (args, string);
- fprintf (stderr, "gdbserver: ");
+ fprintf (stderr, PREFIX);
vfprintf (stderr, string, args);
fprintf (stderr, "\n");
- va_end (args);
- exit (1);
}
-/* VARARGS */
+/* Report a problem internal to GDBserver, and exit. */
+
void
-warning (const char *string,...)
+internal_verror (const char *file, int line, const char *fmt, va_list args)
{
- va_list args;
- va_start (args, string);
- fprintf (stderr, "gdbserver: ");
- vfprintf (stderr, string, args);
+ fprintf (stderr, "\
+%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
+ vfprintf (stderr, fmt, args);
fprintf (stderr, "\n");
- va_end (args);
+ exit (1);
}
-/* Temporary storage using circular buffer. */
-#define NUMCELLS 4
-#define CELLSIZE 50
-
-/* Return the next entry in the circular buffer. */
+/* Report a problem internal to GDBserver. */
-static char *
-get_cell (void)
+void
+internal_vwarning (const char *file, int line, const char *fmt, va_list args)
{
- static char buf[NUMCELLS][CELLSIZE];
- static int cell = 0;
- if (++cell >= NUMCELLS)
- cell = 0;
- return buf[cell];
+ fprintf (stderr, "\
+%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
+ vfprintf (stderr, fmt, args);
+ fprintf (stderr, "\n");
}
-/* Stdarg wrapper around vsnprintf.
- SIZE is the size of the buffer pointed to by STR. */
+/* Convert a CORE_ADDR into a HEX string, like %lx.
+ The result is stored in a circular static buffer, NUMCELLS deep. */
-static int
-xsnprintf (char *str, size_t size, const char *format, ...)
+char *
+paddress (CORE_ADDR addr)
{
- va_list args;
- int ret;
-
- va_start (args, format);
- ret = vsnprintf (str, size, format, args);
- va_end (args);
-
- return ret;
+ return phex_nz (addr, sizeof (CORE_ADDR));
}
-/* Convert a CORE_ADDR into a HEX string, like %lx.
- The result is stored in a circular static buffer, NUMCELLS deep. */
+/* Convert a file descriptor into a printable string. */
char *
-paddress (CORE_ADDR addr)
+pfildes (gdb_fildes_t fd)
{
- char *str = get_cell ();
- xsnprintf (str, CELLSIZE, "%lx", (long) addr);
- return str;
+#if USE_WIN32API
+ return phex_nz (fd, sizeof (gdb_fildes_t));
+#else
+ return plongest (fd);
+#endif
}