-
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
also let poll-emulator build on Linux again
- Loading branch information
1 parent
7420841
commit d965a29
Showing
9 changed files
with
238 additions
and
16 deletions.
There are no files selected for viewing
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| /* | ||
| * Copyright (c) 1999-2010 Apple Inc. All rights reserved. | ||
| * | ||
| * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | ||
| * | ||
| * This file contains Original Code and/or Modifications of Original Code | ||
| * as defined in and that are subject to the Apple Public Source License | ||
| * Version 2.0 (the 'License'). You may not use this file except in | ||
| * compliance with the License. The rights granted to you under the License | ||
| * may not be used to create, or enable the creation or redistribution of, | ||
| * unlawful or unlicensed copies of an Apple operating system, or to | ||
| * circumvent, violate, or enable the circumvention or violation of, any | ||
| * terms of an Apple operating system software license agreement. | ||
| * | ||
| * Please obtain a copy of the License at | ||
| * http://www.opensource.apple.com/apsl/ and read it before using this file. | ||
| * | ||
| * The Original Code and all software distributed under the License are | ||
| * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | ||
| * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | ||
| * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | ||
| * Please see the License for the specific language governing rights and | ||
| * limitations under the License. | ||
| * | ||
| * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | ||
| */ | ||
| /* | ||
| * File: brk.c | ||
| * | ||
| * Unix compatibility for sbrk system call. | ||
| * | ||
| * HISTORY | ||
| * 09-Mar-90 Gregg Kellogg (gk) at NeXT. | ||
| * include <kern/mach_interface.h> instead of <kern/mach.h> | ||
| * | ||
| * 14-Feb-89 Avadis Tevanian (avie) at NeXT. | ||
| * Total rewrite using a fixed area of VM from break region. | ||
| */ | ||
|
|
||
| #include <mach/mach.h> /* for vm_allocate, vm_offset_t */ | ||
| #include <mach/vm_statistics.h> | ||
| #include <errno.h> | ||
| #include <unistd.h> | ||
|
|
||
| static int sbrk_needs_init = TRUE; | ||
| static vm_size_t sbrk_region_size = 4*1024*1024; /* Well, what should it be? */ | ||
| static vm_address_t sbrk_curbrk; | ||
|
|
||
| void *sbrk(int size) | ||
| { | ||
| kern_return_t ret; | ||
|
|
||
| if (sbrk_needs_init) { | ||
| sbrk_needs_init = FALSE; | ||
| /* | ||
| * Allocate a big region to simulate break region. | ||
| */ | ||
| ret = vm_allocate(mach_task_self(), &sbrk_curbrk, sbrk_region_size, | ||
| VM_MAKE_TAG(VM_MEMORY_SBRK)|TRUE); | ||
| if (ret != KERN_SUCCESS) { | ||
| errno = ENOMEM; | ||
| return((void *)-1); | ||
| } | ||
| } | ||
|
|
||
| if (size <= 0) | ||
| return((void *)sbrk_curbrk); | ||
| else if (size > sbrk_region_size) { | ||
| errno = ENOMEM; | ||
| return((void *)-1); | ||
| } | ||
| sbrk_curbrk += size; | ||
| sbrk_region_size -= size; | ||
| return((void *)(sbrk_curbrk - size)); | ||
| } | ||
|
|
||
| void *brk(const void *x) | ||
| { | ||
| errno = ENOMEM; | ||
| return((void *)-1); | ||
| } |
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.