diff options
| author | neal <neal> | 2007-12-12 23:32:52 +0000 |
|---|---|---|
| committer | neal <neal> | 2007-12-12 23:32:52 +0000 |
| commit | 2bc0ce8855c99d9c05a75b53498abc02e8188d6b (patch) | |
| tree | 0af5cb9cb160f8e9fddf45e46584c36a868fe6e4 /libhurd-mm/exceptions.c | |
| parent | c6db87c3de0012174f1ec96eb4922ab2678b701d (diff) | |
hurd/
2007-12-13 Neal H. Walfield <neal@gnu.org>
* exceptions.h (exception_page_cleanup): New declaration.
libhurd-mm/
2007-12-13 Neal H. Walfield <neal@gnu.org>
* exceptions.c (exception_frame_alloc): When allocating the first
frame, set EXCEPTION_PAGE->EXCEPTION_STACK_BOTTOM.
(exception_page_cleanup): New function.
* ia32-exception-entry.S (_exception_handler_end): Correctly
adjust the exception page's exception stack.
libpthread/
2007-12-13 Neal H. Walfield <neal@gnu.org>
* sysdeps/l4/hurd/pt-thread-halt.c: Include <hurd/exceptions.h>.
(__pthread_thread_halt): Call exception_page_cleanup.
Diffstat (limited to 'libhurd-mm/exceptions.c')
| -rw-r--r-- | libhurd-mm/exceptions.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libhurd-mm/exceptions.c b/libhurd-mm/exceptions.c index 47f9790..71eb16c 100644 --- a/libhurd-mm/exceptions.c +++ b/libhurd-mm/exceptions.c @@ -93,6 +93,10 @@ exception_frame_alloc (struct exception_page *exception_page) exception_frame->next->prev = exception_frame; exception_page->exception_stack = exception_frame; + + if (! exception_page->exception_stack_bottom) + /* This is the first frame we've allocated. */ + exception_page->exception_stack_bottom = exception_frame; } return exception_frame; @@ -310,3 +314,25 @@ exception_handler_init (void) if (err) panic ("Failed to install exception page"); } + +void +exception_page_cleanup (struct exception_page *exception_page) +{ + struct exception_frame *f; + struct exception_frame *prev = exception_page->exception_stack_bottom; + + int count = 0; + while ((f = prev)) + { + prev = f->prev; + hurd_slab_dealloc (&exception_frame_slab, f); + count ++; + } + + assertx (count == exception_page->frame_count, + "count: %d, exception_page->frame_count: %d", + count, exception_page->frame_count); + + debug (0, "Freed %d frames", count); +} + |