thread handling fix for BSD and Solaris

[Pierre Beyssac]

Hi,

Here's a patch to fix a EFAULT error returned by ptrace calls in
server/context_i386.c, causing tons of "file_set_error: Bad address"
errors.

Two arguments to ptrace were reversed.

This is tested on FreeBSD and checked with NetBSD and Solaris
ptrace(2) manual pages.

--- wine-20020804.orig/server/context_i386.c	Sun Mar 10 01:18:36 2002
+++ wine-20020804/server/context_i386.c	Sat Aug 10 19:07:31 2002
@@ -224,7 +224,7 @@
     if (flags & CONTEXT_FULL)
     {
         struct regs regs;
-        if (ptrace( PTRACE_GETREGS, pid, 0, (int) &regs ) == -1) goto error;
+        if (ptrace( PTRACE_GETREGS, pid, (int) &regs, 0 ) == -1) goto error;
         if (flags & CONTEXT_INTEGER)
         {
             context->Eax = regs.r_eax;
@@ -259,7 +259,7 @@
     {
         /* we can use context->FloatSave directly as it is using the */
         /* correct structure (the same as fsave/frstor) */
-        if (ptrace( PTRACE_GETFPREGS, pid, 0, (int) &context->FloatSave ) == -1) goto error;
+        if (ptrace( PTRACE_GETFPREGS, pid, (int) &context->FloatSave, 0 ) == -1) goto error;
         context->FloatSave.Cr0NpxState = 0;  /* FIXME */
     }
     return;
@@ -332,7 +332,7 @@
     if (flags & CONTEXT_FULL)
     {
         struct reg regs;
-        if (ptrace( PTRACE_GETREGS, pid, 0, (int) &regs ) == -1) goto error;
+        if (ptrace( PTRACE_GETREGS, pid, (caddr_t) &regs, 0 ) == -1) goto error;
         if (flags & CONTEXT_INTEGER)
         {
             context->Eax = regs.r_eax;
@@ -367,7 +367,7 @@
     {
         /* we can use context->FloatSave directly as it is using the */
         /* correct structure (the same as fsave/frstor) */
-        if (ptrace( PTRACE_GETFPREGS, pid, 0, (int) &context->FloatSave ) == -1) goto error;
+        if (ptrace( PTRACE_GETFPREGS, pid, (caddr_t) &context->FloatSave, 0 ) == -1) goto error;
         context->FloatSave.Cr0NpxState = 0;  /* FIXME */
     }
     return;
@@ -423,7 +423,7 @@
     {
         /* we can use context->FloatSave directly as it is using the */
         /* correct structure (the same as fsave/frstor) */
-        if (ptrace( PTRACE_SETFPREGS, pid, 0, (int) &context->FloatSave ) == -1) goto error;
+        if (ptrace( PTRACE_SETFPREGS, pid, (caddr_t) &context->FloatSave, 0 ) == -1) goto error;
     }
     return;
  error: