From 71914125ceb1f9bfda8a90f26019c043112580b6 Mon Sep 17 00:00:00 2001 From: Alexandre Julliard Date: Fri, 1 Jul 2005 16:24:32 +0000 Subject: [PATCH] Moved most of the implementation of CALL32_CBClient(Ex) to the C code. --- dlls/kernel/kernel16_private.h | 3 ++ dlls/kernel/thunk.c | 36 +++++++++++-- dlls/kernel/wowthunk.c | 2 - tools/winebuild/relay.c | 119 +++-------------------------------------- 4 files changed, 42 insertions(+), 118 deletions(-) diff --git a/dlls/kernel/kernel16_private.h b/dlls/kernel/kernel16_private.h index 24378281aad..a28ea175ac6 100644 --- a/dlls/kernel/kernel16_private.h +++ b/dlls/kernel/kernel16_private.h @@ -224,4 +224,7 @@ extern HTASK16 TASK_GetTaskFromThread( DWORD thread ); extern TDB *TASK_GetCurrent(void); extern void TASK_InstallTHHook( THHOOK *pNewThook ); +extern SEGPTR CALL32_CBClient_RetAddr; +extern SEGPTR CALL32_CBClientEx_RetAddr; + #endif /* __WINE_KERNEL16_PRIVATE_H */ diff --git a/dlls/kernel/thunk.c b/dlls/kernel/thunk.c index c4958bee427..cb4ad20a507 100644 --- a/dlls/kernel/thunk.c +++ b/dlls/kernel/thunk.c @@ -144,6 +144,9 @@ struct SLApiDB DWORD errorReturnValue; }; +SEGPTR CALL32_CBClient_RetAddr = 0; +SEGPTR CALL32_CBClientEx_RetAddr = 0; + #ifdef __i386__ extern void __wine_call_from_16_thunk(); #else @@ -1997,7 +2000,7 @@ void WINAPI CBClientGlueSL( CONTEXT86 *context ) /*********************************************************************** * CBClientThunkSL (KERNEL.620) */ -extern DWORD CALL32_CBClient( FARPROC proc, LPWORD args, DWORD *esi ); +extern DWORD CALL32_CBClient( FARPROC proc, LPWORD args, WORD *stackLin, DWORD *esi ); void WINAPI CBClientThunkSL( CONTEXT86 *context ) { /* Call 32-bit relay code */ @@ -2005,13 +2008,24 @@ void WINAPI CBClientThunkSL( CONTEXT86 *context ) LPWORD args = MapSL( MAKESEGPTR( context->SegSs, LOWORD(context->Ebp) ) ); FARPROC proc = CBClientRelay32[ args[2] ][ args[1] ]; - context->Eax = CALL32_CBClient( proc, args, &context->Esi ); + /* fill temporary area for the asm code (see comments in winebuild) */ + SEGPTR stack = stack16_push( 12 ); + LPWORD stackLin = MapSL(stack); + /* stackLin[0] and stackLin[1] reserved for the 32-bit stack ptr */ + stackLin[2] = wine_get_ss(); + stackLin[3] = 0; + stackLin[4] = OFFSETOF(stack) + 12; + stackLin[5] = SELECTOROF(stack); + stackLin[6] = OFFSETOF(CALL32_CBClientEx_RetAddr); /* overwrite return address */ + stackLin[7] = SELECTOROF(CALL32_CBClientEx_RetAddr); + context->Eax = CALL32_CBClient( proc, args, stackLin + 4, &context->Esi ); + stack16_pop( 12 ); } /*********************************************************************** * CBClientThunkSLEx (KERNEL.621) */ -extern DWORD CALL32_CBClientEx( FARPROC proc, LPWORD args, DWORD *esi, INT *nArgs ); +extern DWORD CALL32_CBClientEx( FARPROC proc, LPWORD args, WORD *stackLin, DWORD *esi, INT *nArgs ); void WINAPI CBClientThunkSLEx( CONTEXT86 *context ) { /* Call 32-bit relay code */ @@ -2021,7 +2035,21 @@ void WINAPI CBClientThunkSLEx( CONTEXT86 *context ) INT nArgs; LPWORD stackLin; - context->Eax = CALL32_CBClientEx( proc, args, &context->Esi, &nArgs ); + /* fill temporary area for the asm code (see comments in winebuild) */ + SEGPTR stack = stack16_push( 24 ); + stackLin = MapSL(stack); + stackLin[0] = OFFSETOF(stack) + 4; + stackLin[1] = SELECTOROF(stack); + stackLin[2] = wine_get_ds(); + stackLin[5] = OFFSETOF(stack) + 24; + /* stackLin[6] and stackLin[7] reserved for the 32-bit stack ptr */ + stackLin[8] = wine_get_ss(); + stackLin[9] = 0; + stackLin[10] = OFFSETOF(CALL32_CBClientEx_RetAddr); + stackLin[11] = SELECTOROF(CALL32_CBClientEx_RetAddr); + + context->Eax = CALL32_CBClientEx( proc, args, stackLin, &context->Esi, &nArgs ); + stack16_pop( 24 ); /* Restore registers saved by CBClientGlueSL */ stackLin = (LPWORD)((LPBYTE)CURRENT_STACK16 + sizeof(STACK16FRAME) - 4); diff --git a/dlls/kernel/wowthunk.c b/dlls/kernel/wowthunk.c index 57df13837a6..05dd9913af5 100644 --- a/dlls/kernel/wowthunk.c +++ b/dlls/kernel/wowthunk.c @@ -85,8 +85,6 @@ extern void DPMI_PendingEventCheck(); extern void DPMI_PendingEventCheck_Cleanup(); extern void DPMI_PendingEventCheck_Return(); extern DWORD CallTo16_DataSelector; -extern SEGPTR CALL32_CBClient_RetAddr; -extern SEGPTR CALL32_CBClientEx_RetAddr; extern BYTE Call16_Start; extern BYTE Call16_End; diff --git a/tools/winebuild/relay.c b/tools/winebuild/relay.c index a15fe92b457..16b3aad9437 100644 --- a/tools/winebuild/relay.c +++ b/tools/winebuild/relay.c @@ -743,7 +743,6 @@ static void BuildRet16Func( FILE *outfile ) static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx ) { const char *name = isEx? "CALL32_CBClientEx" : "CALL32_CBClient"; - int size = isEx? 24 : 12; /* Function header */ @@ -759,106 +758,21 @@ static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx ) fprintf( outfile, "\tpushl %%esi\n" ); fprintf( outfile, "\tpushl %%ebx\n" ); - if (UsePIC) - { - /* Get Global Offset Table into %edx */ - fprintf( outfile, "\tcall .L__wine_%s.getgot1\n", name ); - fprintf( outfile, ".L__wine_%s.getgot1:\n", name ); - fprintf( outfile, "\tpopl %%edx\n" ); - fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.L__wine_%s.getgot1], %%edx\n", name ); - } - - /* Get the 16-bit stack */ - - fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%ebx\n", STACKOFFSET); - - /* Convert it to a flat address */ - - fprintf( outfile, "\tshldl $16,%%ebx,%%eax\n" ); - fprintf( outfile, "\tandl $0xfff8,%%eax\n" ); - fprintf( outfile, "\tshrl $1,%%eax\n" ); - if (!UsePIC) - fprintf( outfile, "\tmovl %s(%%eax),%%esi\n", asm_name("wine_ldt_copy") ); - else - { - fprintf( outfile, "\tmovl %s(%%edx), %%esi\n", asm_name("wine_ldt_copy@GOT") ); - fprintf( outfile, "\tmovl (%%esi,%%eax), %%esi\n" ); - } - fprintf( outfile, "\tmovw %%bx,%%ax\n" ); - fprintf( outfile, "\taddl %%eax,%%esi\n" ); + /* Get pointer to temporary area and save the 32-bit stack pointer */ - /* Allocate temporary area (simulate STACK16_PUSH) */ - - fprintf( outfile, "\tpushf\n" ); - fprintf( outfile, "\tcld\n" ); - fprintf( outfile, "\tleal -%d(%%esi), %%edi\n", size ); - fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) ); - fprintf( outfile, "\trep\n\tmovsb\n" ); - fprintf( outfile, "\tpopf\n" ); - - fprintf( outfile, "\t.byte 0x64\n\tsubw $%d,(%d)\n", size, STACKOFFSET ); - - fprintf( outfile, "\tpushl %%edi\n" ); /* remember address */ - - /* Set up temporary area */ + fprintf( outfile, "\tmovl 16(%%ebp), %%ebx\n" ); + fprintf( outfile, "\tleal -8(%%esp), %%eax\n" ); if ( !isEx ) - { - fprintf( outfile, "\tleal 4(%%edi), %%edi\n" ); - - fprintf( outfile, "\tleal -8(%%esp), %%eax\n" ); - fprintf( outfile, "\tmovl %%eax, -8(%%edi)\n" ); /* 32-bit sp */ - - fprintf( outfile, "\tmovw %%ss, %%ax\n" ); - fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" ); - fprintf( outfile, "\tmovl %%eax, -4(%%edi)\n" ); /* 32-bit ss */ - - fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 + 4 ); - fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" ); /* 16-bit ss:sp */ - - if (!UsePIC) - fprintf( outfile, "\tmovl %s_RetAddr, %%eax\n", asm_name(name) ); - else - { - fprintf( outfile, "\tmovl %s_RetAddr@GOT(%%edx), %%eax\n", asm_name(name) ); - fprintf( outfile, "\tmovl (%%eax), %%eax\n" ); - } - fprintf( outfile, "\tmovl %%eax, 4(%%edi)\n" ); /* overwrite return address */ - } + fprintf( outfile, "\tmovl %%eax, -8(%%ebx)\n" ); else - { - fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 ); - fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" ); - - fprintf( outfile, "\tmovw %%ds, %%ax\n" ); - fprintf( outfile, "\tmovw %%ax, 4(%%edi)\n" ); - - fprintf( outfile, "\taddl $20, %%ebx\n" ); - fprintf( outfile, "\tmovw %%bx, 10(%%edi)\n" ); - - fprintf( outfile, "\tleal -8(%%esp), %%eax\n" ); - fprintf( outfile, "\tmovl %%eax, 12(%%edi)\n" ); - - fprintf( outfile, "\tmovw %%ss, %%ax\n" ); - fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" ); - fprintf( outfile, "\tmovl %%eax, 16(%%edi)\n" ); - - if (!UsePIC) - fprintf( outfile, "\tmovl %s_RetAddr, %%eax\n", asm_name(name) ); - else - { - fprintf( outfile, "\tmovl %s_RetAddr@GOT(%%edx), %%eax\n", asm_name(name) ); - fprintf( outfile, "\tmovl (%%eax), %%eax\n" ); - } - fprintf( outfile, "\tmovl %%eax, 20(%%edi)\n" ); - } + fprintf( outfile, "\tmovl %%eax, 12(%%ebx)\n" ); /* Set up registers and call CBClient relay stub (simulating a far call) */ - fprintf( outfile, "\tmovl 16(%%ebp), %%esi\n" ); + fprintf( outfile, "\tmovl 20(%%ebp), %%esi\n" ); fprintf( outfile, "\tmovl (%%esi), %%esi\n" ); - fprintf( outfile, "\tmovl %%edi, %%ebx\n" ); fprintf( outfile, "\tmovl 8(%%ebp), %%eax\n" ); fprintf( outfile, "\tmovl 12(%%ebp), %%ebp\n" ); @@ -870,24 +784,10 @@ static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx ) fprintf( outfile, "\tmovl 32(%%esp), %%edi\n" ); fprintf( outfile, "\tmovl %%esi, (%%edi)\n" ); - /* Cleanup temporary area (simulate STACK16_POP) */ - - fprintf( outfile, "\tpop %%esi\n" ); - - fprintf( outfile, "\tpushf\n" ); - fprintf( outfile, "\tstd\n" ); - fprintf( outfile, "\tdec %%esi\n" ); - fprintf( outfile, "\tleal %d(%%esi), %%edi\n", size ); - fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) ); - fprintf( outfile, "\trep\n\tmovsb\n" ); - fprintf( outfile, "\tpopf\n" ); - - fprintf( outfile, "\t.byte 0x64\n\taddw $%d,(%d)\n", size, STACKOFFSET ); - /* Return argument size to caller */ if ( isEx ) { - fprintf( outfile, "\tmovl 32(%%esp), %%ebx\n" ); + fprintf( outfile, "\tmovl 36(%%esp), %%ebx\n" ); fprintf( outfile, "\tmovl %%ebp, (%%ebx)\n" ); } @@ -924,11 +824,6 @@ static void BuildCallTo32CBClientRet( FILE *outfile, BOOL isEx ) } fprintf( outfile, "\tlret\n" ); function_footer( outfile, name ); - - /* Declare the return address variable */ - - fprintf( outfile, "\n\t.globl %sAddr\n", asm_name(name) ); - fprintf( outfile, "%sAddr:\t.long 0\n", asm_name(name) ); } -- 2.11.4.GIT