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Bochs/bochs/patches/patch.rcfile-builtin-vars

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----------------------------------------------------------------------
Patch name: patch.rcfile.builtin-vars
Author: Tal Benavidor
Date: 11-06-2002
RCS Id: $Id: patch.rcfile-builtin-vars,v 1.1 2002-08-12 15:19:19 cbothamy Exp $
Patch Version: 1
Detailed description:
this patch gives you built in "environment variables" which help to
make ".bochsrc" files more portable.
example bochrc line:
floppya: 1_44=$BX_FLOPPY, status=inserted
under linux, the above line becomes:
floppya: 1_44=/dev/fd0, status=inserted
while under windows, the above line is changed into:
floppya: 1_44=a:, status=inserted
for a complete list of builtin variables, see .bochrc in
bochs distribution main directory.
TODOs, known problems:
this patch is a very incomplete.
for mac, i did not put any support. i don't know anything
about macs.
for linux, i hard coded the value "/usr/local/bochs" as bochs
root directory. i should have used $prefix/bochs which comes
from the configure script, as is done in the makefile. problem
is that i don't really know how to do it. NEED HELP!
for windows, i simply hard coded a directory i made up, "c:\\bochs".
i never used bochs on windows, altough i am very familiar with that
platform. again, i need some help, figuring the correct path.
maybe its even possible to support pathe given by an installation
program?
should also update bochrc-1.4/doc/man/bochsrc.1
convert all the preinstalled images available for download from
bochs web site, to use the new built in variable.
Patch was created with:
cvs diff -u
Apply patch to what version:
cvs checked out on August 12th 2002
Instructions:
To patch, go to main bochs directory.
Type "patch -p0 < THIS_PATCH_FILE".
Type "autoconf"
Type "./configure"
You may now build as usual: "make"
----------------------------------------------------------------------
Index: .bochsrc
===================================================================
RCS file: /cvsroot/bochs/bochs/.bochsrc,v
retrieving revision 1.45
diff -u -r1.45 .bochsrc
--- .bochsrc 9 Aug 2002 06:16:42 -0000 1.45
+++ .bochsrc 12 Aug 2002 15:16:55 -0000
@@ -1,6 +1,31 @@
# You many now use double quotes around pathnames, in case
# your pathname includes spaces.
+# built in environment variables, that can be used in bochrc
+# ----------------------------------------------------------
+# these variables make it possible to write portable
+# BX_SEP - "\" on windows, "/" on unix.
+# BX_ROOT - master root directory for bochs. this directory
+# contains one subdirectory for each bochs installed
+# bochs version.
+# this value include a traling separator.
+# BX_ROOT_LATEST - root directory for bochs latest version.
+# bochs version.
+# this value include a traling separator.
+# BX_FLOPPY - file name for floppy device which may be given
+# in "floppya:" line.
+# BX_BIOS - this is the a file name of the latest stable rom bios.
+# BX_VGABIOS - this is a file name of a stable vga bios.
+#
+# to concat strings, add spaces. two exaples follow.
+# under linux, the following two lines are equivalent:
+# romimage: file=$BX_ROOT 1.4 $BX_SEP BIOS-bochs-970717a, address=0xf0000
+# romimage: /usr/local/bochs/1.4/BIOS-bochs-970717a, address=0xf0000
+#
+# again, under linux, the following two lines are equivalent:
+# diskc: file=$BX_ROOT_LATEST 30M.sample, cyl=615, heads=6, spt=17
+# diskc: file=/usr/local/bochs/latest/30M.sample, cyl=615, heads=6, spt=17
+
#=======================================================================
# ROMIMAGE:
# You now need to load a ROM BIOS into F0000-FFFFF. I've wiped
@@ -8,8 +33,9 @@
# support. Normally, you can use a precompiled BIOS in the bios/
# directory, named BIOS-bochs-latest.
#=======================================================================
+romimage: file=$BX_BIOS, address=0xf0000
#romimage: bios/BIOS-bochs-970717a
-romimage: file=bios/BIOS-bochs-latest, address=0xf0000
+#romimage: file=bios/BIOS-bochs-latest, address=0xf0000
#romimage: file=bios/BIOS-bochs-2-processors, address=0xf0000
#romimage: file=bios/BIOS-bochs-4-processors, address=0xf0000
#romimage: file=bios/rombios.bin, address=0xf0000
@@ -48,8 +74,9 @@
# VGAROMIMAGE
# You now need to load a VGA ROM BIOS into C0000.
#=======================================================================
+vgaromimage: $BX_VGABIOS
#vgaromimage: bios/VGABIOS-lgpl-0.3a
-vgaromimage: bios/VGABIOS-elpin-2.40
+#vgaromimage: bios/VGABIOS-elpin-2.40
#=======================================================================
# FLOPPYA:
@@ -69,8 +96,8 @@
# drive letters such as a: or b: as the path. Raw floppy access is not
# supported on Windows 95 and 98.
#=======================================================================
-floppya: 1_44=/dev/fd0, status=inserted
-#floppya: file=../1.44, status=inserted
+floppya: 1_44=$BX_FLOPPY, status=inserted
+#floppya: 1_44=/dev/fd0, status=inserted
#floppya: 1_44=/dev/fd0H1440, status=inserted
#floppya: 1_2=../1_2, status=inserted
#floppya: 1_44=a:, status=inserted # for win32
Index: config.h.in
===================================================================
RCS file: /cvsroot/bochs/bochs/config.h.in,v
retrieving revision 1.50
diff -u -r1.50 config.h.in
--- config.h.in 5 Jun 2002 03:59:30 -0000 1.50
+++ config.h.in 12 Aug 2002 15:16:56 -0000
@@ -560,6 +560,7 @@
#define BX_SUPPORT_FPU 0
#define BX_HAVE_GETENV 0
+#define BX_HAVE_PUTENV 0
#define BX_HAVE_SELECT 0
#define BX_HAVE_SNPRINTF 0
#define BX_HAVE_STRTOULL 0
Index: configure.in
===================================================================
RCS file: /cvsroot/bochs/bochs/configure.in,v
retrieving revision 1.84
diff -u -r1.84 configure.in
--- configure.in 11 Aug 2002 11:42:09 -0000 1.84
+++ configure.in 12 Aug 2002 15:16:56 -0000
@@ -94,6 +94,7 @@
AC_CHECK_SIZEOF(unsigned long long)
AC_CHECK_SIZEOF(int *)
AC_CHECK_FUNCS(getenv, AC_DEFINE(BX_HAVE_GETENV))
+AC_CHECK_FUNCS(putenv, AC_DEFINE(BX_HAVE_PUTENV))
AC_CHECK_FUNCS(select, AC_DEFINE(BX_HAVE_SELECT))
AC_CHECK_FUNCS(snprintf, AC_DEFINE(BX_HAVE_SNPRINTF))
AC_CHECK_FUNCS(strtoull, AC_DEFINE(BX_HAVE_STRTOULL))
Index: main.cc
===================================================================
RCS file: /cvsroot/bochs/bochs/main.cc,v
retrieving revision 1.112
diff -u -r1.112 main.cc
--- main.cc 12 Aug 2002 14:55:21 -0000 1.112
+++ main.cc 12 Aug 2002 15:16:56 -0000
@@ -1539,6 +1539,47 @@
char *ret;
char line[512];
+ /*
+ * built in environment variables, that can be used in bochrc
+ * BX_SEP - "\" on windows, "/" on unix.
+ * BX_ROOT - master root directory for bochs. this directory
+ * contains one subdirectory for each bochs installed
+ * bochs version.
+ * this value include a traling separator.
+ * BX_ROOT_LATEST - root directory for bochs latest version.
+ * bochs version.
+ * this value include a traling separator.
+ * BX_FLOPPY - file name for floppy device which may be given
+ * in "floppya:" line.
+ * BX_BIOS - this is the a file name of the latest stable rom bios.
+ * BX_VGABIOS - this is a file name of a stable vga bios.
+ *
+ * if you change something here, plese update the more detailed
+ * description in ".bochsrc" in this directory.
+ * you should also update doc/man/bochsrc.1.
+ */
+
+#if BX_HAVE_GETENV && BX_HAVE_PUTENV
+# if defined(WIN32) // windows
+ putenv("BX_SEP=\\");
+ putenv("BX_ROOT=c:\\bochs\\");
+ putenv("BX_ROOT_LATEST=c:\\bochs\\latest\\");
+ putenv("BX_FLOPPY=a:");
+ putenv("BX_BIOS=c:\\bochs\\latest\\BIOS-bochs-latest");
+ putenv("BX_VGABIOS=c:\\bochs\\latest\\VGABIOS-elpin-2.40");
+# elif BX_WITH_MACOS // mac
+ // don't know anything about mac...
+# else // unix
+ putenv("BX_SEP=/");
+ putenv("BX_ROOT=/usr/local/bochs/");
+ putenv("BX_ROOT_LATEST=/usr/local/bochs/latest/");
+ putenv("BX_FLOPPY=/dev/fd0");
+ putenv("BX_BIOS=/usr/local/bochs/latest/BIOS-bochs-latest");
+ putenv("BX_VGABIOS=/usr/local/bochs/latest/VGABIOS-elpin-2.40");
+# endif
+#endif // #if BX_HAVE_GETENV
+
+
// try several possibilities for the bochsrc before giving up
fd = fopen (rcfile, "r");
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