Module: wine Branch: master Commit: 158a2bada765ff4fafa9ee42a1512ed3c7ab88c3 URL: https://gitlab.winehq.org/wine/wine/-/commit/158a2bada765ff4fafa9ee42a1512ed...
Author: Alexandre Julliard julliard@winehq.org Date: Thu Dec 7 14:45:07 2023 +0100
kernelbase: Implement SwitchToFiber on ARM64EC.
---
dlls/kernelbase/thread.c | 38 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-)
diff --git a/dlls/kernelbase/thread.c b/dlls/kernelbase/thread.c index bb1145e3f66..8867029a854 100644 --- a/dlls/kernelbase/thread.c +++ b/dlls/kernelbase/thread.c @@ -787,8 +787,8 @@ struct fiber_data struct fiber_actctx actctx; /* activation context state */ };
-extern void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ); #ifdef __i386__ +extern void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ); __ASM_STDCALL_FUNC( switch_fiber, 8, "movl 4(%esp),%ecx\n\t" /* old */ "movl %edi,0x9c(%ecx)\n\t" /* old->Edi */ @@ -806,7 +806,36 @@ __ASM_STDCALL_FUNC( switch_fiber, 8, "movl 0xb4(%ecx),%ebp\n\t" /* new->Ebp */ "movl 0xc4(%ecx),%esp\n\t" /* new->Esp */ "jmp *0xb8(%ecx)" ) /* new->Eip */ +#elif defined(__arm64ec__) +static void __attribute__((naked)) WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ) +{ + asm( "mov x2, sp\n\t" + "stp x27, x2, [x0, #0x90]\n\t" /* old->Rbx,Rsp */ + "str x29, [x0, #0xa0]\n\t" /* old->Rbp */ + "stp x25, x26, [x0, #0xa8]\n\t" /* old->Rsi,Rdi */ + "stp x19, x20, [x0, #0xd8]\n\t" /* old->R12,R13 */ + "stp x21, x22, [x0, #0xe8]\n\t" /* old->R14,R15 */ + "str x30, [x0, #0xf8]\n\t" /* old->Rip */ + "stp q8, q9, [x0, #0x220]\n\t" /* old->Xmm8,Xmm9 */ + "stp q10, q11, [x0, #0x240]\n\t" /* old->Xmm10,Xmm11 */ + "stp q12, q13, [x0, #0x260]\n\t" /* old->Xmm12,Xmm13 */ + "stp q14, q15, [x0, #0x280]\n\t" /* old->Xmm14,Xmm15 */ + /* FIXME: MxCsr */ + "ldp x27, x2, [x1, #0x90]\n\t" /* old->Rbx,Rsp */ + "ldr x29, [x1, #0xa0]\n\t" /* old->Rbp */ + "ldp x25, x26, [x1, #0xa8]\n\t" /* old->Rsi,Rdi */ + "ldp x19, x20, [x1, #0xd8]\n\t" /* old->R12,R13 */ + "ldp x21, x22, [x1, #0xe8]\n\t" /* old->R14,R15 */ + "ldr x30, [x1, #0xf8]\n\t" /* old->Rip */ + "ldp q8, q9, [x1, #0x220]\n\t" /* old->Xmm8,Xmm9 */ + "ldp q10, q11, [x1, #0x240]\n\t" /* old->Xmm10,Xmm11 */ + "ldp q12, q13, [x1, #0x260]\n\t" /* old->Xmm12,Xmm13 */ + "ldp q14, q15, [x1, #0x280]\n\t" /* old->Xmm14,Xmm15 */ + "mov sp, x2\n\t" + "ret" ); +} #elif defined(__x86_64__) +extern void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ); __ASM_GLOBAL_FUNC( switch_fiber, "movq %rbx,0x90(%rcx)\n\t" /* old->Rbx */ "leaq 0x8(%rsp),%rax\n\t" @@ -851,6 +880,7 @@ __ASM_GLOBAL_FUNC( switch_fiber, "movq 0x98(%rdx),%rsp\n\t" /* new->Rsp */ "jmp *0xf8(%rdx)" ) /* new->Rip */ #elif defined(__arm__) +extern void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ); __ASM_GLOBAL_FUNC( switch_fiber, "str r4, [r0, #0x14]\n\t" /* old->R4 */ "str r5, [r0, #0x18]\n\t" /* old->R5 */ @@ -874,6 +904,7 @@ __ASM_GLOBAL_FUNC( switch_fiber, "ldr r2, [r1, #0x40]\n\t" /* new->Pc */ "bx r2" ) #elif defined(__aarch64__) +extern void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ); __ASM_GLOBAL_FUNC( switch_fiber, "stp x19, x20, [x0, #0xa0]\n\t" /* old->X19,X20 */ "stp x21, x22, [x0, #0xb0]\n\t" /* old->X21,X22 */ @@ -895,7 +926,7 @@ __ASM_GLOBAL_FUNC( switch_fiber, "mov sp, x2\n\t" "ret" ) #else -void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ) +static void WINAPI switch_fiber( CONTEXT *old, CONTEXT *new ) { FIXME( "not implemented\n" ); DbgBreakPoint(); @@ -925,6 +956,9 @@ static void init_fiber_context( struct fiber_data *fiber ) #ifdef __i386__ fiber->context.Esp = (ULONG_PTR)fiber->stack_base - 4; fiber->context.Eip = (ULONG_PTR)start_fiber; +#elif defined(__arm64ec__) + fiber->context.Rsp = (ULONG_PTR)fiber->stack_base; + fiber->context.Rip = (ULONG_PTR)start_fiber; #elif defined(__x86_64__) fiber->context.Rsp = (ULONG_PTR)fiber->stack_base - 0x28; fiber->context.Rip = (ULONG_PTR)start_fiber;