af062818b47340eef15700d2f0211576ba3506eevboxsync/*
af062818b47340eef15700d2f0211576ba3506eevboxsync * Wine portability routines
af062818b47340eef15700d2f0211576ba3506eevboxsync *
af062818b47340eef15700d2f0211576ba3506eevboxsync * Copyright 2000 Alexandre Julliard
af062818b47340eef15700d2f0211576ba3506eevboxsync *
af062818b47340eef15700d2f0211576ba3506eevboxsync * This library is free software; you can redistribute it and/or
af062818b47340eef15700d2f0211576ba3506eevboxsync * modify it under the terms of the GNU Lesser General Public
af062818b47340eef15700d2f0211576ba3506eevboxsync * License as published by the Free Software Foundation; either
af062818b47340eef15700d2f0211576ba3506eevboxsync * version 2.1 of the License, or (at your option) any later version.
af062818b47340eef15700d2f0211576ba3506eevboxsync *
af062818b47340eef15700d2f0211576ba3506eevboxsync * This library is distributed in the hope that it will be useful,
af062818b47340eef15700d2f0211576ba3506eevboxsync * but WITHOUT ANY WARRANTY; without even the implied warranty of
af062818b47340eef15700d2f0211576ba3506eevboxsync * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
af062818b47340eef15700d2f0211576ba3506eevboxsync * Lesser General Public License for more details.
af062818b47340eef15700d2f0211576ba3506eevboxsync *
af062818b47340eef15700d2f0211576ba3506eevboxsync * You should have received a copy of the GNU Lesser General Public
af062818b47340eef15700d2f0211576ba3506eevboxsync * License along with this library; if not, write to the Free Software
af062818b47340eef15700d2f0211576ba3506eevboxsync * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
af062818b47340eef15700d2f0211576ba3506eevboxsync */
af062818b47340eef15700d2f0211576ba3506eevboxsync
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync/*
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * other than GPL or LGPL is available it will apply instead, Oracle elects to use only
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync * a choice of LGPL license versions is made available with the language indicating
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync * that LGPLv2 or any later version may be used, or where a choice of which version
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync * of the LGPL is applied is otherwise unspecified.
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync */
b955672b950093ff7416d1269dd4d3b69983bd8fvboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync#include "config.h"
af062818b47340eef15700d2f0211576ba3506eevboxsync#include "wine/port.h"
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync#include <stdlib.h>
af062818b47340eef15700d2f0211576ba3506eevboxsync#include <string.h>
af062818b47340eef15700d2f0211576ba3506eevboxsync#include <sys/types.h>
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync#include "wine/library.h"
af062818b47340eef15700d2f0211576ba3506eevboxsync
040b4a09341f574825386333398110f4db3e1e51vboxsync/* no longer used, for backwards compatibility only */
040b4a09341f574825386333398110f4db3e1e51vboxsyncstruct wine_pthread_functions;
040b4a09341f574825386333398110f4db3e1e51vboxsyncstatic void *pthread_functions[8];
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync/***********************************************************************
af062818b47340eef15700d2f0211576ba3506eevboxsync * wine_pthread_get_functions
af062818b47340eef15700d2f0211576ba3506eevboxsync */
af062818b47340eef15700d2f0211576ba3506eevboxsyncvoid wine_pthread_get_functions( struct wine_pthread_functions *functions, size_t size )
af062818b47340eef15700d2f0211576ba3506eevboxsync{
af062818b47340eef15700d2f0211576ba3506eevboxsync memcpy( functions, &pthread_functions, min( size, sizeof(pthread_functions) ));
af062818b47340eef15700d2f0211576ba3506eevboxsync}
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync/***********************************************************************
af062818b47340eef15700d2f0211576ba3506eevboxsync * wine_pthread_set_functions
af062818b47340eef15700d2f0211576ba3506eevboxsync */
af062818b47340eef15700d2f0211576ba3506eevboxsyncvoid wine_pthread_set_functions( const struct wine_pthread_functions *functions, size_t size )
af062818b47340eef15700d2f0211576ba3506eevboxsync{
af062818b47340eef15700d2f0211576ba3506eevboxsync memcpy( &pthread_functions, functions, min( size, sizeof(pthread_functions) ));
af062818b47340eef15700d2f0211576ba3506eevboxsync}
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync/***********************************************************************
af062818b47340eef15700d2f0211576ba3506eevboxsync * wine_switch_to_stack
af062818b47340eef15700d2f0211576ba3506eevboxsync *
af062818b47340eef15700d2f0211576ba3506eevboxsync * Switch to the specified stack and call the function.
af062818b47340eef15700d2f0211576ba3506eevboxsync */
040b4a09341f574825386333398110f4db3e1e51vboxsync#if defined(__sparc__) && defined(__GNUC__)
af062818b47340eef15700d2f0211576ba3506eevboxsync__ASM_GLOBAL_FUNC( wine_switch_to_stack,
af062818b47340eef15700d2f0211576ba3506eevboxsync "mov %o0, %l0\n\t" /* store first argument */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mov %o1, %l1\n\t" /* store second argument */
af062818b47340eef15700d2f0211576ba3506eevboxsync "sub %o2, 96, %sp\n\t" /* store stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "call %l0, 0\n\t" /* call func */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mov %l1, %o0\n\t" /* delay slot: arg for func */
af062818b47340eef15700d2f0211576ba3506eevboxsync "ta 0x01") /* breakpoint - we never get here */
af062818b47340eef15700d2f0211576ba3506eevboxsync#elif defined(__powerpc__) && defined(__APPLE__)
af062818b47340eef15700d2f0211576ba3506eevboxsync__ASM_GLOBAL_FUNC( wine_switch_to_stack,
af062818b47340eef15700d2f0211576ba3506eevboxsync "mtctr r3\n\t" /* func -> ctr */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mr r3,r4\n\t" /* args -> function param 1 (r3) */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mr r1,r5\n\t" /* stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "subi r1,r1,0x100\n\t" /* adjust stack pointer */
af062818b47340eef15700d2f0211576ba3506eevboxsync "bctrl\n" /* call ctr */
af062818b47340eef15700d2f0211576ba3506eevboxsync "1:\tb 1b") /* loop */
af062818b47340eef15700d2f0211576ba3506eevboxsync#elif defined(__ALPHA__) && defined(__GNUC__)
af062818b47340eef15700d2f0211576ba3506eevboxsync__ASM_GLOBAL_FUNC( wine_switch_to_stack,
af062818b47340eef15700d2f0211576ba3506eevboxsync "mov $16,$0\n\t" /* func */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mov $17,$16\n\t" /* arg */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mov $18,$30\n\t" /* stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "jsr $31,($0),0\n\t" /* call func */
af062818b47340eef15700d2f0211576ba3506eevboxsync "L1:\tbr $31,L1") /* loop */
af062818b47340eef15700d2f0211576ba3506eevboxsync#else
af062818b47340eef15700d2f0211576ba3506eevboxsyncvoid DECLSPEC_NORETURN wine_switch_to_stack( void (*func)(void *), void *arg, void *stack )
af062818b47340eef15700d2f0211576ba3506eevboxsync{
af062818b47340eef15700d2f0211576ba3506eevboxsync wine_call_on_stack( (int (*)(void *))func, arg, stack );
af062818b47340eef15700d2f0211576ba3506eevboxsync abort();
af062818b47340eef15700d2f0211576ba3506eevboxsync}
af062818b47340eef15700d2f0211576ba3506eevboxsync#endif
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync/***********************************************************************
af062818b47340eef15700d2f0211576ba3506eevboxsync * wine_call_on_stack
af062818b47340eef15700d2f0211576ba3506eevboxsync *
af062818b47340eef15700d2f0211576ba3506eevboxsync * Switch to the specified stack to call the function and return.
af062818b47340eef15700d2f0211576ba3506eevboxsync */
554f00fe75489f3f3ce7fbb6d126ce1d2c5c922cvboxsync
af062818b47340eef15700d2f0211576ba3506eevboxsync#if defined(__i386__) && defined(__GNUC__)
af062818b47340eef15700d2f0211576ba3506eevboxsync__ASM_GLOBAL_FUNC( wine_call_on_stack,
af062818b47340eef15700d2f0211576ba3506eevboxsync "pushl %ebp\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "pushl %esi\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_rel_offset %esi,0\n\t")
040b4a09341f574825386333398110f4db3e1e51vboxsync "movl %esp,%esi\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_def_cfa_register %esi\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "movl 12(%esp),%ecx\n\t" /* func */
af062818b47340eef15700d2f0211576ba3506eevboxsync "movl 16(%esp),%edx\n\t" /* arg */
040b4a09341f574825386333398110f4db3e1e51vboxsync "movl 20(%esp),%eax\n\t" /* stack */
040b4a09341f574825386333398110f4db3e1e51vboxsync "andl $~15,%eax\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync "subl $12,%eax\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync "movl %eax,%esp\n\t"
af062818b47340eef15700d2f0211576ba3506eevboxsync "pushl %edx\n\t"
af062818b47340eef15700d2f0211576ba3506eevboxsync "xorl %ebp,%ebp\n\t"
af062818b47340eef15700d2f0211576ba3506eevboxsync "call *%ecx\n\t"
af062818b47340eef15700d2f0211576ba3506eevboxsync "movl %esi,%esp\n\t"
af062818b47340eef15700d2f0211576ba3506eevboxsync "popl %esi\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_same_value %esi\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "popl %ebp\n\t"
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_def_cfa %esp,4\n\t")
040b4a09341f574825386333398110f4db3e1e51vboxsync __ASM_CFI(".cfi_same_value %ebp\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "ret" )
af062818b47340eef15700d2f0211576ba3506eevboxsync#elif defined(__i386__) && defined(_MSC_VER)
af062818b47340eef15700d2f0211576ba3506eevboxsync__declspec(naked) int wine_call_on_stack( int (*func)(void *), void *arg, void *stack )
af062818b47340eef15700d2f0211576ba3506eevboxsync{
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm push ebp;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm push esi;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm mov ecx, 12[esp];
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm mov edx, 16[esp];
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm mov esi, 20[esp];
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm xchg esp, esi;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm push edx;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm xor ebp, ebp;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm call [ecx];
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm mov esp, esi;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm pop esi;
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm pop ebp
af062818b47340eef15700d2f0211576ba3506eevboxsync __asm ret;
af062818b47340eef15700d2f0211576ba3506eevboxsync}
af062818b47340eef15700d2f0211576ba3506eevboxsync#elif defined(__x86_64__) && defined(__GNUC__)
af062818b47340eef15700d2f0211576ba3506eevboxsync__ASM_GLOBAL_FUNC( wine_call_on_stack,
af062818b47340eef15700d2f0211576ba3506eevboxsync "pushq %rbp\n\t"
ee6bcfc59fe3b0230aad85e2ef63d0402b7719b2vboxsync __ASM_CFI(".cfi_adjust_cfa_offset 8\n\t")
ee6bcfc59fe3b0230aad85e2ef63d0402b7719b2vboxsync __ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
040b4a09341f574825386333398110f4db3e1e51vboxsync "movq %rsp,%rbp\n\t"
ee6bcfc59fe3b0230aad85e2ef63d0402b7719b2vboxsync __ASM_CFI(".cfi_def_cfa_register %rbp\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "movq %rdi,%rax\n\t" /* func */
af062818b47340eef15700d2f0211576ba3506eevboxsync "movq %rsi,%rdi\n\t" /* arg */
af062818b47340eef15700d2f0211576ba3506eevboxsync "andq $~15,%rdx\n\t" /* stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "movq %rdx,%rsp\n\t"
af062818b47340eef15700d2f0211576ba3506eevboxsync "callq *%rax\n\t" /* call func */
040b4a09341f574825386333398110f4db3e1e51vboxsync "movq %rbp,%rsp\n\t"
ee6bcfc59fe3b0230aad85e2ef63d0402b7719b2vboxsync __ASM_CFI(".cfi_def_cfa_register %rsp\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "popq %rbp\n\t"
ee6bcfc59fe3b0230aad85e2ef63d0402b7719b2vboxsync __ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
ee6bcfc59fe3b0230aad85e2ef63d0402b7719b2vboxsync __ASM_CFI(".cfi_same_value %rbp\n\t")
af062818b47340eef15700d2f0211576ba3506eevboxsync "ret")
af062818b47340eef15700d2f0211576ba3506eevboxsync#elif defined(__powerpc__) && defined(__GNUC__)
af062818b47340eef15700d2f0211576ba3506eevboxsync__ASM_GLOBAL_FUNC( wine_call_on_stack,
af062818b47340eef15700d2f0211576ba3506eevboxsync "mflr 0\n\t" /* get return address */
af062818b47340eef15700d2f0211576ba3506eevboxsync "stw 0, 4(1)\n\t" /* save return address */
af062818b47340eef15700d2f0211576ba3506eevboxsync "subi 5, 5, 16\n\t" /* reserve space on new stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "stw 1, 12(5)\n\t" /* store old sp */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mtctr 3\n\t" /* func -> ctr */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mr 3,4\n\t" /* args -> function param 1 (r3) */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mr 1,5\n\t" /* stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "li 0, 0\n\t" /* zero */
af062818b47340eef15700d2f0211576ba3506eevboxsync "stw 0, 0(1)\n\t" /* bottom of stack */
af062818b47340eef15700d2f0211576ba3506eevboxsync "stwu 1, -16(1)\n\t" /* create a frame for this function */
af062818b47340eef15700d2f0211576ba3506eevboxsync "bctrl\n\t" /* call ctr */
af062818b47340eef15700d2f0211576ba3506eevboxsync "lwz 1, 28(1)\n\t" /* fetch old sp */
af062818b47340eef15700d2f0211576ba3506eevboxsync "lwz 0, 4(1)\n\t" /* fetch return address */
af062818b47340eef15700d2f0211576ba3506eevboxsync "mtlr 0\n\t" /* return address -> lr */
af062818b47340eef15700d2f0211576ba3506eevboxsync "blr") /* return */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync#elif defined(__arm__)
5112e32d7072e280613921c982a6672f2c859cf3vboxsync__ASM_GLOBAL_FUNC( wine_call_on_stack,
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "str r14, [r13, #4]\n\t" /* save return address on stack */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "sub r2, r2, #16\n\t" /* reserve space on new stack */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "str r13, [r2, #12]\n\t" /* store old sp */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "mov r3, r0\n\t" /* func */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "mov r0, r1\n\t" /* arg */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "mov r13, r2\n\t" /* stack */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "mov r2, #0\n\t" /* zero */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "str r2, [r13]\n\t" /* bottom of stack */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "sub r13, r13, #16\n\t" /* create a frame for this function */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "blx r3\n\t" /* call func */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "ldr r13, [r13, #28]\n\t" /* fetch old sp */
5112e32d7072e280613921c982a6672f2c859cf3vboxsync "ldr r15, [r13, #4]") /* fetch return address and return */
af062818b47340eef15700d2f0211576ba3506eevboxsync#else
af062818b47340eef15700d2f0211576ba3506eevboxsync#error You must implement wine_switch_to_stack for your platform
af062818b47340eef15700d2f0211576ba3506eevboxsync#endif