* mmap support for common simulators

2001-03-16  Frank Ch. Eigler  <fche@redhat.com>

	Add support for mmap-based memory regions.
	* sim-memopt.c (mmap_next_fd): New global.
	(sim_memory_init): Reinitialize it.
	(OPTION_MEMORY_MAPFILE, memory_option_handler): Support new
	"--memory-mapfile FILE" option.  Check for some errors.
	(do_memopt_add): Conditionally do mmap instead of malloc for
	backing store of simulated memory.  Check for more errors.
	(do_simopt_delete, sim_memory_uninstall): Corresponding cleanup.
	* sim-memopt.h (munmap_length): New member of _sim_memopt.
	* configure.in: Look for mmap/fstat related functions and headers.
	* config.in, configure: Regenerated.

1 files changed, 1 insertions, 0 deletions

diff --git a/sim/common/sim-memopt.h b/sim/common/sim-memopt.h
index 287c576..cbaad0c 100644
--- a/sim/common/sim-memopt.h
+++ b/sim/common/sim-memopt.h
@@ -31,6 +31,7 @@ struct _sim_memopt {
   unsigned_word nr_bytes;
   unsigned modulo;
   void *buffer;
+  unsigned long munmap_length;
   sim_memopt *alias; /* linked list */
   sim_memopt *next;
 };