libc/linuxthreads manager.c

[drepper at sourceware dot cygnus dot com]

CVSROOT:	/cvs/glibc
Module name:	libc
Changes by:	drepper@sourceware.cygnus.com	2000-07-15 12:01:25

Modified files:
	linuxthreads   : manager.c 

Log message:
	Fix the problem with signals at startup.
	Change the way that thread stacks are allocated on IA64.
	Clean up some of the guard page allocation stuff.
	
	(pthread_allocate_stack): Make sure guardaddr is page aligned with
	page_roundup if NEED_SEPARATE_REGISTER_STACK is define.
	
	(pthread_allocate_stack): Unmap the stack top if failed to map the
	stack bottom.  Fix the guard page.
	(pthread_free): Fix the guard page.
	
	(pthread_allocate_stack): Correct the calculation of
	"new_thread_bottom". Remove MAP_GROWSDOWN from mmap for stack bottom.
	
	(pthread_allocate_stack): Make the starting address of the stack
	bottom page aligned. FIXME: it may need changes in other places.
	(pthread_handle_create): Likewise.
	
	(pthread_allocate_stack): Handle NEED_SEPARATE_REGISTER_STACK.