diff options
Diffstat (limited to 'mozilla/nsprpub/pr/src/md/unix/nextstep.c')
| -rw-r--r-- | mozilla/nsprpub/pr/src/md/unix/nextstep.c | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/mozilla/nsprpub/pr/src/md/unix/nextstep.c b/mozilla/nsprpub/pr/src/md/unix/nextstep.c new file mode 100644 index 0000000..3f87815 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/unix/nextstep.c @@ -0,0 +1,284 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "primpl.h" + +#import <mach/mach.h> +#import <mach/mach_error.h> +#import <mach-o/dyld.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/mman.h> +#include <syscall.h> + + + +/* These functions are hidden in NEXTSTEP, but beacuse they have syscall() +** entries I can wrap these into their corresponding missing function. +*/ +caddr_t +mmap(caddr_t addr, size_t len, int prot, int flags, + int fildes, off_t off) +{ + return (caddr_t) syscall (SYS_mmap, addr, len, prot, flags, fildes, off); +} + +int +munmap(caddr_t addr, size_t len) +{ + return syscall (SYS_munmap, addr, len); +} + +int +mprotect(caddr_t addr, size_t len, int prot) +{ + return syscall (SYS_mprotect, addr, len, prot); +} + + +/* If found the brk() symbol in the sahred libraries but no syscall() entry ... +** I don't know whether it will work ... +int brk(void *endds) +{ + return syscall (); +} +*/ + +void *sbrk(int incr) +{ + return (void *) syscall (SYS_sbrk, incr); +} + +/* These are my mach based versions, untested and probably bad ... +*/ +caddr_t my_mmap(caddr_t addr, size_t len, int prot, int flags, + int fildes, off_t off) +{ + kern_return_t ret_val; + + /* First map ... + */ + ret_val = map_fd ( fildes, /* fd */ + (vm_offset_t) off, /* offset */ + (vm_offset_t*)&addr, /* address */ + TRUE, /* find_space */ + (vm_size_t) len); /* size */ + + if (ret_val != KERN_SUCCESS) { + mach_error("Error calling map_fd() in mmap", ret_val ); + return (caddr_t)0; + } + + /* ... then protect (this is probably bad) + */ + ret_val = vm_protect( task_self(), /* target_task */ + (vm_address_t)addr, /* address */ + (vm_size_t) len, /* size */ + FALSE, /* set_maximum */ + (vm_prot_t) prot); /* new_protection */ + if (ret_val != KERN_SUCCESS) { + mach_error("vm_protect in mmap()", ret_val ); + return (caddr_t)0; + } + + return addr; +} + +int my_munmap(caddr_t addr, size_t len) +{ + kern_return_t ret_val; + + ret_val = vm_deallocate(task_self(), + (vm_address_t) addr, + (vm_size_t) len); + + if (ret_val != KERN_SUCCESS) { + mach_error("vm_deallocate in munmap()", ret_val); + return -1; + } + + return 0; +} + +int my_mprotect(caddr_t addr, size_t len, int prot) +{ + vm_prot_t mach_prot; + kern_return_t ret_val; + + switch (prot) { + case PROT_READ: mach_prot = VM_PROT_READ; break; + case PROT_WRITE: mach_prot = VM_PROT_WRITE; break; + case PROT_EXEC: mach_prot = VM_PROT_EXECUTE; break; + case PROT_NONE: mach_prot = VM_PROT_NONE; break; + } + + ret_val = vm_protect(task_self(), /* target_task */ + (vm_address_t)addr, /* address */ + (vm_size_t) len, /* size */ + FALSE, /* set_maximum */ + (vm_prot_t) prot); /* new_protection */ + + if (ret_val != KERN_SUCCESS) { + mach_error("vm_protect in mprotect()", ret_val); + return -1; + } + + return 0; +} + +char *strdup(const char *s1) +{ + int len = strlen (s1); + char *copy = (char*) malloc (len+1); + + if (copy == (char*)0) + return (char*)0; + + strcpy (copy, s1); + + return copy; +} + +/* Stub rld functions +*/ +extern NSObjectFileImageReturnCode NSCreateObjectFileImageFromFile( + const char *pathName, + NSObjectFileImage *objectFileImage) +{ + return NSObjectFileImageFailure; +} + +extern void * NSAddressOfSymbol( + NSSymbol symbol) +{ + return NULL; +} + +extern NSModule NSLinkModule( + NSObjectFileImage objectFileImage, + const char *moduleName, /* can be NULL */ + enum bool bindNow) +{ + return NULL; +} + +extern NSSymbol NSLookupAndBindSymbol( + const char *symbolName) +{ + return NULL; +} + +extern enum bool NSUnLinkModule( + NSModule module, + enum bool keepMemoryMapped) +{ + return 0; +} + + + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) sigsetjmp(CONTEXT(t), 1); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for NEXTSTEP */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for NEXTSTEP."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for NEXTSTEP."); + return PR_FAILURE; +} + +#endif |