Module: wine Branch: master Commit: b035fe601dc61395c782f462d5072c9df87db7a9 URL: https://source.winehq.org/git/wine.git/?a=commit;h=b035fe601dc61395c782f462d...
Author: Zebediah Figura zfigura@codeweavers.com Date: Tue Sep 28 20:39:05 2021 -0500
krnl386: Call generated 16-bit entry points from the snoop thunks.
Instead of manually building a STACK16FRAME.
Signed-off-by: Zebediah Figura zfigura@codeweavers.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/krnl386.exe16/krnl386.exe16.spec | 4 +++ dlls/krnl386.exe16/snoop.c | 56 ++++++----------------------------- 2 files changed, 13 insertions(+), 47 deletions(-)
diff --git a/dlls/krnl386.exe16/krnl386.exe16.spec b/dlls/krnl386.exe16/krnl386.exe16.spec index c6ffd9df701..6a55aad78f8 100644 --- a/dlls/krnl386.exe16/krnl386.exe16.spec +++ b/dlls/krnl386.exe16/krnl386.exe16.spec @@ -747,3 +747,7 @@ # VxDs @ cdecl -arch=win32 -private __wine_vxd_open(wstr long ptr) @ cdecl -arch=win32 -private __wine_vxd_get_proc(long) + +# Snoop support +2001 pascal -register __wine_snoop_entry() +2002 pascal -register __wine_snoop_return() diff --git a/dlls/krnl386.exe16/snoop.c b/dlls/krnl386.exe16/snoop.c index 170796da390..d5c528d3382 100644 --- a/dlls/krnl386.exe16/snoop.c +++ b/dlls/krnl386.exe16/snoop.c @@ -34,13 +34,10 @@ WINE_DEFAULT_DEBUG_CHANNEL(snoop);
#include "pshpack1.h"
-static void WINAPI SNOOP16_Entry(FARPROC proc, LPBYTE args, CONTEXT *context); -static void WINAPI SNOOP16_Return(FARPROC proc, LPBYTE args, CONTEXT *context); - typedef struct tagSNOOP16_FUN { /* code part */ BYTE lcall; /* 0x9a call absolute with segment */ - DWORD snr; + FARPROC16 snoop_entry; /* unreached */ int nrofargs; FARPROC16 origfun; @@ -58,7 +55,7 @@ typedef struct tagSNOOP16_DLL { typedef struct tagSNOOP16_RETURNENTRY { /* code part */ BYTE lcall; /* 0x9a call absolute with segment */ - DWORD snr; + FARPROC16 snoop_return; /* unreached */ FARPROC16 origreturn; SNOOP16_DLL *dll; @@ -73,24 +70,10 @@ typedef struct tagSNOOP16_RETURNENTRIES { struct tagSNOOP16_RETURNENTRIES *next; } SNOOP16_RETURNENTRIES;
-typedef struct tagSNOOP16_RELAY { - WORD pushbp; /* 0x5566 */ - BYTE pusheax; /* 0x50 */ - WORD pushax; /* 0x5066 */ - BYTE pushl; /* 0x68 */ - DWORD realfun; /* SNOOP16_Return */ - BYTE lcall; /* 0x9a call absolute with segment */ - DWORD callfromregs; - WORD seg; - WORD lret; /* 0xcb66 */ -} SNOOP16_RELAY; - #include "poppack.h"
static SNOOP16_DLL *firstdll = NULL; static SNOOP16_RETURNENTRIES *firstrets = NULL; -static SNOOP16_RELAY *snr; -static HANDLE16 xsnr = 0;
void SNOOP16_RegisterDLL(HMODULE16 hModule,LPCSTR name) { @@ -102,29 +85,6 @@ SNOOP16_RegisterDLL(HMODULE16 hModule,LPCSTR name) {
TRACE("hmod=%x, name=%s\n", hModule, name);
- if (!snr) { - xsnr=GLOBAL_Alloc(GMEM_ZEROINIT,2*sizeof(*snr),0,LDT_FLAGS_CODE | LDT_FLAGS_32BIT); - snr = GlobalLock16(xsnr); - snr[0].pushbp = 0x5566; - snr[0].pusheax = 0x50; - snr[0].pushax = 0x5066; - snr[0].pushl = 0x68; - snr[0].realfun = (DWORD)SNOOP16_Entry; - snr[0].lcall = 0x9a; - snr[0].callfromregs = (DWORD)__wine_call_from_16_regs; - snr[0].seg = get_cs(); - snr[0].lret = 0xcb66; - - snr[1].pushbp = 0x5566; - snr[1].pusheax = 0x50; - snr[1].pushax = 0x5066; - snr[1].pushl = 0x68; - snr[1].realfun = (DWORD)SNOOP16_Return; - snr[1].lcall = 0x9a; - snr[1].callfromregs = (DWORD)__wine_call_from_16_regs; - snr[1].seg = get_cs(); - snr[1].lret = 0xcb66; - } while (*dll) { if ((*dll)->hmod == hModule) { @@ -181,7 +141,7 @@ SNOOP16_GetProcAddress16(HMODULE16 hmod,DWORD ordinal,FARPROC16 origfun) { fun = dll->funs+ordinal; /* already done? */ fun->lcall = 0x9a; - fun->snr = MAKELONG(0,xsnr); + fun->snoop_entry = GetProcAddress16( GetModuleHandle16( "KERNEL" ), "__wine_snoop_entry" ); fun->origfun = origfun; if (fun->name) return (FARPROC16)(SEGPTR)MAKELONG(((char*)fun-(char*)dll->funs),dll->funhandle); @@ -227,14 +187,15 @@ SNOOP16_GetProcAddress16(HMODULE16 hmod,DWORD ordinal,FARPROC16 origfun) { } } fun->lcall = 0x9a; - fun->snr = MAKELONG(0,xsnr); + fun->snoop_entry = GetProcAddress16( GetModuleHandle16( "KERNEL" ), "__wine_snoop_entry" ); fun->origfun = origfun; fun->nrofargs = -1; return (FARPROC16)(SEGPTR)MAKELONG(((char*)fun-(char*)dll->funs),dll->funhandle); }
#define CALLER1REF (*(DWORD*)(MapSL( MAKESEGPTR(context->SegSs,LOWORD(context->Esp)+4)))) -static void WINAPI SNOOP16_Entry(FARPROC proc, LPBYTE args, CONTEXT *context) { +void WINAPI __wine_snoop_entry( CONTEXT *context ) +{ DWORD ordinal=0; DWORD entry=(DWORD)MapSL( MAKESEGPTR(context->SegCs,LOWORD(context->Eip)) )-5; WORD xcs = context->SegCs; @@ -273,7 +234,7 @@ static void WINAPI SNOOP16_Entry(FARPROC proc, LPBYTE args, CONTEXT *context) { } ret = &((*rets)->entry[i]); ret->lcall = 0x9a; - ret->snr = MAKELONG(sizeof(SNOOP16_RELAY),xsnr); + ret->snoop_return = GetProcAddress16( GetModuleHandle16( "KERNEL" ), "__wine_snoop_return" ); ret->origreturn = (FARPROC16)CALLER1REF; CALLER1REF = MAKELONG((char*)&(ret->lcall)-(char*)((*rets)->entry),(*rets)->rethandle); ret->dll = dll; @@ -301,7 +262,8 @@ static void WINAPI SNOOP16_Entry(FARPROC proc, LPBYTE args, CONTEXT *context) { TRACE(") ret=%04x:%04x\n",HIWORD(ret->origreturn),LOWORD(ret->origreturn)); }
-static void WINAPI SNOOP16_Return(FARPROC proc, LPBYTE args, CONTEXT *context) { +void WINAPI __wine_snoop_return( CONTEXT *context ) +{ SNOOP16_RETURNENTRY *ret = (SNOOP16_RETURNENTRY*)((char *) MapSL( MAKESEGPTR(context->SegCs,LOWORD(context->Eip)) )-5);
/* We haven't found out the nrofargs yet. If we called a cdecl