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* sysdeps/mach/hurd/brk.c (_hurd_set_brk): When shrinking the program's data space, reallocate only the space that was just deallocated to release its backing space.

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2000-07-22  Mark Kettenis  <kettenis@gnu.org>

	* sysdeps/mach/hurd/brk.c (_hurd_set_brk): When shrinking the
	program's data space, reallocate only the space that was just
	deallocated to release its backing space.
This commit is contained in:
Mark Kettenis 2000-07-23 21:18:46 +00:00
parent 6a1fc4ed17
commit 6abc15e943
2 changed files with 8 additions and 2 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2000-07-22 Mark Kettenis <kettenis@gnu.org>
* sysdeps/mach/hurd/brk.c (_hurd_set_brk): When shrinking the
program's data space, reallocate only the space that was just
deallocated to release its backing space.
2000-07-23 Ulrich Drepper <drepper@redhat.com>
* stdio-common/vfprintf.c (process_string_arg): For wide character

4
sysdeps/mach/hurd/brk.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991,92,93,94,95,96,97,99 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,93,94,95,96,97,99,2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -78,7 +78,7 @@ _hurd_set_brk (vm_address_t addr)
__vm_deallocate (__mach_task_self (), pagend, pagebrk - pagend);
/* Now reallocate it with no access allowed. */
err = __vm_map (__mach_task_self (),
&pagend, _hurd_data_end - pagend,
&pagend, pagebrk - pagend,
0, 0, MACH_PORT_NULL, 0, 0,
0, VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE,
VM_INHERIT_COPY);