PR gdb/13431:

	* jit.c (struct jit_inferior_data): Rewrite.
	(struct jit_objfile_data): New.
	(get_jit_objfile_data): New function.
	(add_objfile_entry): Update.
	(jit_read_descriptor): Return int.  Replace descriptor_addr
	argument with inf_data.  Update.  Don't call error.
	(jit_breakpoint_re_set_internal): Reorder logic.  Update.  Look up
	descriptor here.
	(jit_inferior_init): Don't look up descriptor.  Don't call error.
	(jit_reset_inferior_data_and_breakpoints)
	(jit_inferior_created_observer): Remove.
	(jit_inferior_exit_hook): Update.
	(jit_executable_changed_observer): Remove.
	(jit_event_handler): Update.
	(free_objfile_data): Reset inferior data if needed.
	(_initialize_jit): Update.
gdb/testsuite
	* gdb.base/jit-simple.exp: New file.
	* gdb.base/jit-simple.c: New file.

1 files changed, 37 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/jit-simple.c b/gdb/testsuite/gdb.base/jit-simple.c
new file mode 100644
index 0000000..3893c3d
--- /dev/null
+++ b/gdb/testsuite/gdb.base/jit-simple.c
@@ -0,0 +1,37 @@
+/* Simple program using the JIT API.  */
+
+#include <stdint.h>
+
+struct jit_code_entry
+{
+  struct jit_code_entry *next_entry;
+  struct jit_code_entry *prev_entry;
+  const char *symfile_addr;
+  uint64_t symfile_size;
+};
+
+struct jit_descriptor
+{
+  uint32_t version;
+  /* This type should be jit_actions_t, but we use uint32_t
+     to be explicit about the bitwidth.  */
+  uint32_t action_flag;
+  struct jit_code_entry *relevant_entry;
+  struct jit_code_entry *first_entry;
+};
+
+#ifdef SPACER
+/* This exists to change the address of __jit_debug_descriptor.  */
+int spacer = 4;
+#endif
+
+struct jit_descriptor __jit_debug_descriptor = { 1, 0, 0, 0 };
+
+void __jit_debug_register_code()
+{
+}
+
+int main()
+{
+  return 0;
+}