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