/* This test program is part of GDB, the GNU debugger.
- Copyright 2011 Free Software Foundation, Inc.
+ Copyright 2011-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Simulate loading of JIT code. */
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
+#include <unistd.h>
+
+/* ElfW is coming from linux. On other platforms it does not exist.
+ Let us define it here. */
+#ifndef ElfW
+# if (defined (_LP64) || defined (__LP64__))
+# define WORDSIZE 64
+# else
+# define WORDSIZE 32
+# endif /* _LP64 || __LP64__ */
+#define ElfW(type) _ElfW (Elf, WORDSIZE, type)
+#define _ElfW(e,w,t) _ElfW_1 (e, w, _##t)
+#define _ElfW_1(e,w,t) e##w##t
+#endif /* !ElfW */
typedef enum
{
}
}
+/* Defined by the .exp file if testing attach. */
+#ifndef ATTACH
+#define ATTACH 0
+#endif
+
+#ifndef MAIN
+#define MAIN main
+#endif
+
+/* Used to spin waiting for GDB. */
+volatile int wait_for_gdb = ATTACH;
+#define WAIT_FOR_GDB do {} while (wait_for_gdb)
+
+/* The current process's PID. GDB retrieves this. */
+int mypid;
+
int
-main (int argc, char *argv[])
+MAIN (int argc, char *argv[])
{
/* These variables are here so they can easily be set from jit.exp. */
const char *libname = NULL;
- int count = 0;
+ int count = 0, i, fd;
+ struct stat st;
+
+ alarm (300);
+
+ mypid = getpid ();
count = count; /* gdb break here 0 */
if (argc < 2)
- usage (argv[0]);
- else
{
- int i, fd;
- struct stat st;
+ usage (argv[0]);
+ exit (1);
+ }
- if (libname == NULL)
- /* Only set if not already set from GDB. */
- libname = argv[1];
+ if (libname == NULL)
+ /* Only set if not already set from GDB. */
+ libname = argv[1];
- if (argc > 2 && count == 0)
- /* Only set if not already set from GDB. */
- count = atoi (argv[2]);
+ if (argc > 2 && count == 0)
+ /* Only set if not already set from GDB. */
+ count = atoi (argv[2]);
- printf ("%s:%d: libname = %s, count = %d\n", __FILE__, __LINE__,
- libname, count);
+ printf ("%s:%d: libname = %s, count = %d\n", __FILE__, __LINE__,
+ libname, count);
- if ((fd = open (libname, O_RDONLY)) == -1)
- {
- fprintf (stderr, "open (\"%s\", O_RDONLY): %s\n", libname,
- strerror (errno));
- exit (1);
- }
+ if ((fd = open (libname, O_RDONLY)) == -1)
+ {
+ fprintf (stderr, "open (\"%s\", O_RDONLY): %s\n", libname,
+ strerror (errno));
+ exit (1);
+ }
- if (fstat (fd, &st) != 0)
- {
- fprintf (stderr, "fstat (\"%d\"): %s\n", fd, strerror (errno));
- exit (1);
- }
+ if (fstat (fd, &st) != 0)
+ {
+ fprintf (stderr, "fstat (\"%d\"): %s\n", fd, strerror (errno));
+ exit (1);
+ }
- for (i = 0; i < count; ++i)
- {
- const void *const addr = mmap (0, st.st_size, PROT_READ|PROT_WRITE,
- MAP_PRIVATE, fd, 0);
- struct jit_code_entry *const entry = calloc (1, sizeof (*entry));
-
- if (addr == MAP_FAILED)
- {
- fprintf (stderr, "mmap: %s\n", strerror (errno));
- exit (1);
- }
-
- update_locations (addr, i);
-
- /* Link entry at the end of the list. */
- entry->symfile_addr = (const char *)addr;
- entry->symfile_size = st.st_size;
- entry->prev_entry = __jit_debug_descriptor.relevant_entry;
- __jit_debug_descriptor.relevant_entry = entry;
-
- if (entry->prev_entry != NULL)
- entry->prev_entry->next_entry = entry;
- else
- __jit_debug_descriptor.first_entry = entry;
-
- /* Notify GDB. */
- __jit_debug_descriptor.action_flag = JIT_REGISTER_FN;
- __jit_debug_register_code ();
- }
+ for (i = 0; i < count; ++i)
+ {
+ const void *const addr = mmap (0, st.st_size, PROT_READ|PROT_WRITE,
+ MAP_PRIVATE, fd, 0);
+ struct jit_code_entry *const entry = calloc (1, sizeof (*entry));
+
+ if (addr == MAP_FAILED)
+ {
+ fprintf (stderr, "mmap: %s\n", strerror (errno));
+ exit (1);
+ }
+
+ update_locations (addr, i);
+
+ /* Link entry at the end of the list. */
+ entry->symfile_addr = (const char *)addr;
+ entry->symfile_size = st.st_size;
+ entry->prev_entry = __jit_debug_descriptor.relevant_entry;
+ __jit_debug_descriptor.relevant_entry = entry;
+
+ if (entry->prev_entry != NULL)
+ entry->prev_entry->next_entry = entry;
+ else
+ __jit_debug_descriptor.first_entry = entry;
+
+ /* Notify GDB. */
+ __jit_debug_descriptor.action_flag = JIT_REGISTER_FN;
+ __jit_debug_register_code ();
+ }
- i = 0; /* gdb break here 1 */
+ WAIT_FOR_GDB; i = 0; /* gdb break here 1 */
- /* Now unregister them all in reverse order. */
- while (__jit_debug_descriptor.relevant_entry != NULL)
- {
- struct jit_code_entry *const entry =
- __jit_debug_descriptor.relevant_entry;
- struct jit_code_entry *const prev_entry = entry->prev_entry;
-
- if (prev_entry != NULL)
- {
- prev_entry->next_entry = NULL;
- entry->prev_entry = NULL;
- }
- else
- __jit_debug_descriptor.first_entry = NULL;
-
- /* Notify GDB. */
- __jit_debug_descriptor.action_flag = JIT_UNREGISTER_FN;
- __jit_debug_register_code ();
-
- __jit_debug_descriptor.relevant_entry = prev_entry;
- free (entry);
- }
+ /* Now unregister them all in reverse order. */
+ while (__jit_debug_descriptor.relevant_entry != NULL)
+ {
+ struct jit_code_entry *const entry =
+ __jit_debug_descriptor.relevant_entry;
+ struct jit_code_entry *const prev_entry = entry->prev_entry;
+
+ if (prev_entry != NULL)
+ {
+ prev_entry->next_entry = NULL;
+ entry->prev_entry = NULL;
+ }
+ else
+ __jit_debug_descriptor.first_entry = NULL;
+
+ /* Notify GDB. */
+ __jit_debug_descriptor.action_flag = JIT_UNREGISTER_FN;
+ __jit_debug_register_code ();
+
+ __jit_debug_descriptor.relevant_entry = prev_entry;
+ free (entry);
}
- return 0; /* gdb break here 2 */
+
+ WAIT_FOR_GDB; return 0; /* gdb break here 2 */
}
projects / binutils-gdb.git / blobdiff