Help, Build Visopsys Failed

[meowsoft]

Please help, why i am failed build visopsys ?
I was try version 6,7,8,9 all is failed to build, with same error message, i'm using Ubuntu 18.04 64-Bit on WSL2, 32GB RAM, 4x 1TB SSD Samsung 860 EVO, Dual Xeon e5-2678v3 (24 Total Cores, 48 Total Threads)
What's wrong ?

root@DESKTOP-GF0PHJ4:/visopsys/visopsys-0.9-src# make
mkdir -p build/system
cp COPYING.txt build/system/
make -C dist
make[1]: Entering directory '/visopsys/visopsys-0.9-src/dist'
mkdir -p ../build/temp
mkdir -p ../build/users
make -C programs
make[2]: Entering directory '/visopsys/visopsys-0.9-src/dist/programs'
make -C fontutil.dir
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/programs/fontutil.dir'
mkdir -p ../../../build/programs/fontutil.dir
cp *.txt ../../../build/programs/fontutil.dir
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/programs/fontutil.dir'
make -C helpfiles
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/programs/helpfiles'
mkdir -p ../../../build/programs/helpfiles
cp *.txt ../../../build/programs/helpfiles
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/programs/helpfiles'
make -C mines.dir
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/programs/mines.dir'
mkdir -p ../../../build/programs/mines.dir
cp *.bmp ../../../build/programs/mines.dir
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/programs/mines.dir'
make -C snake.dir
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/programs/snake.dir'
mkdir -p ../../../build/programs/snake.dir
cp *.bmp ../../../build/programs/snake.dir
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/programs/snake.dir'
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/dist/programs'
make -C system
make[2]: Entering directory '/visopsys/visopsys-0.9-src/dist/system'
mkdir -p ../../build/system
cp visopsys.jpg install-files.* password.blank ../../build/system
make -C config
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/config'
mkdir -p ../../../build/system/config
cp *.conf ../../../build/system/config
mkdir -p ../../../build/system/config/de
cp de/*.conf ../../../build/system/config/de
mkdir -p ../../../build/system/config/es
cp es/*.conf ../../../build/system/config/es
mkdir -p ../../../build/system/config/ru
cp ru/*.conf ../../../build/system/config/ru
mkdir -p ../../../build/system/config/tr
cp tr/*.conf ../../../build/system/config/tr
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/config'
make -C fonts
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/fonts'
mkdir -p ../../../build/system/fonts
cp *.vbf ../../../build/system/fonts
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/fonts'
make -C icons
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/icons'
mkdir -p ../../../build/system/icons
cp *.ico ../../../build/system/icons
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/icons'
make -C install
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/install'
mkdir -p ../../../build/system/install
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/install'
make -C keymaps
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/keymaps'
mkdir -p ../../../build/system/keymaps
cp *.map ../../../build/system/keymaps
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/keymaps'
make -C locale
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/locale'
mkdir -p ../../../build/system/locale
cp flag-*.bmp ../../../build/system/locale
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/locale'
make -C mouse
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/mouse'
mkdir -p ../../../build/system/mouse
cp *.bmp *.ico ../../../build/system/mouse
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/mouse'
make -C wallpaper
make[3]: Entering directory '/visopsys/visopsys-0.9-src/dist/system/wallpaper'
mkdir -p ../../../build/system/wallpaper
cp *.jpg ../../../build/system/wallpaper
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system/wallpaper'
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/dist/system'
make[1]: Leaving directory '/visopsys/visopsys-0.9-src/dist'
make -C src DEBUG=
make[1]: Entering directory '/visopsys/visopsys-0.9-src/src'
make -C osloader DEBUG=
make[2]: Entering directory '/visopsys/visopsys-0.9-src/src/osloader'
make -C bios DEBUG=
make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/osloader/bios'
mkdir -p obj ../../../build/system/boot ../../../build
nasm -f bin -w+orphan-labels mbr-simple.s -o ../../../build/system/boot/mbr.simple
nasm -f bin -w+orphan-labels mbr-bootmenu.s -o ../../../build/system/boot/mbr.bootmenu
nasm -f bin -w+orphan-labels bootmenu.s -o ../../../build/system/boot/bootmenu
nasm -f bin -w+orphan-labels bootsect-fat.s -o ../../../build/system/boot/bootsect.fat
nasm -f bin -w+orphan-labels -DFAT32 bootsect-fat.s -o ../../../build/system/boot/bootsect.fat32
nasm -f bin -w+orphan-labels bootsect-fatnoboot.s -o ../../../build/system/boot/bootsect.fatnoboot
nasm -f bin -w+orphan-labels -DFAT32 bootsect-fatnoboot.s -o ../../../build/system/boot/bootsect.fatnoboot32
nasm -f elf32 -w+orphan-labels loaderMain.s -o obj/loaderMain.o
nasm -f elf32 -w+orphan-labels loaderA20.s -o obj/loaderA20.o
nasm -f elf32 -w+orphan-labels loaderDetectHardware.s -o obj/loaderDetectHardware.o
nasm -f elf32 -w+orphan-labels loaderDiskError.s -o obj/loaderDiskError.o
nasm -f elf32 -w+orphan-labels loaderLoad.s -o obj/loaderLoad.o
nasm -f elf32 -w+orphan-labels loaderLoadFile.s -o obj/loaderLoadFile.o
nasm -f elf32 -w+orphan-labels loaderLoadKernel.s -o obj/loaderLoadKernel.o
nasm -f elf32 -w+orphan-labels loaderPrintRoutines.s -o obj/loaderPrintRoutines.o
nasm -f elf32 -w+orphan-labels loaderProgress.s -o obj/loaderProgress.o
nasm -f elf32 -w+orphan-labels loaderVideo.s -o obj/loaderVideo.o
gcc -m32 -nodefaultlibs -nostartfiles -Wl,-warn-common,-X,--oformat,binary,-e,loaderMain,-Ttext,0x00000000 obj/loaderMain.o obj/loaderA20.o obj/loaderDetectHardware.o obj/loaderDiskError.o obj/loaderLoad.o obj/loaderLoadFile.o obj/loaderLoadKernel.o obj/loaderPrintRoutines.o obj/loaderProgress.o obj/loaderVideo.o -o ../../../build/vloader
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/osloader/bios'
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/src/osloader'
make -C include
make[2]: Entering directory '/visopsys/visopsys-0.9-src/src/include'
mkdir -p ../../build/system/headers
cp *.h ../../build/system/headers
make -C arpa
make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/include/arpa'
mkdir -p ../../../build/system/headers/arpa
cp *.h ../../../build/system/headers/arpa
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/include/arpa'
make -C c++
make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/include/c++'
mkdir -p ../../../build/system/headers/c++
for FILE in * ; do \
if [ -f "$FILE" -a "$FILE" != "Makefile" ] ; then \
cp $FILE ../../../build/system/headers/c++ ; \
fi \
done
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/include/c++'
make -C netinet
make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/include/netinet'
mkdir -p ../../../build/system/headers/netinet
cp *.h ../../../build/system/headers/netinet
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/include/netinet'
make -C sys
make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/include/sys'
mkdir -p ../../../build/system/headers/sys
cp *.h ../../../build/system/headers/sys
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/include/sys'
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/src/include'
make -C lib DEBUG=
make[2]: Entering directory '/visopsys/visopsys-0.9-src/src/lib'
mkdir -p ../../build/system/libraries
make -C libc DEBUG=
make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/lib/libc'
mkdir -p obj picobj ../../../build/system/libraries
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c crt0.c -o ../../../build/system/libraries/crt0.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c _dbl2str.c -o obj/_dbl2str.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c _digits.c -o obj/_digits.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c _fdesc.c -o obj/_fdesc.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c _flt2str.c -o obj/_flt2str.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c _fmtinpt.c -o obj/_fmtinpt.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I../../include -c _kernapi.c -o obj/_kernapi.o
_kernapi.c: In function ‘_syscall’:
_kernapi.c:59:1: error: unsupported size for integer register [-Werror]
}
^
_kernapi.c:59:1: error: unsupported size for integer register [-Werror]
cc1: all warnings being treated as errors
Makefile:278: recipe for target 'obj/_kernapi.o' failed
make[3]: *** [obj/_kernapi.o] Error 1
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/lib/libc'
Makefile:11: recipe for target 'all' failed
make[2]: *** [all] Error 2
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/src/lib'
Makefile:11: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/visopsys/visopsys-0.9-src/src'
Makefile:13: recipe for target 'all' failed
make: *** [all] Error 2

#### failed to build some targets (2 seconds) ####

[andymc]

Hellow meowsoft, and welcome

This is a bit of a weird one. I can see why the assembler is complaining, but I don't know why you see this error, and I don't. Is your gcc using some different assembler than the standard gas maybe?

Anyway, can you try changing the _syscall() function in src/lib/libc/_kernapi.c to the following, and let me know if that compiles/works for you?

Code: Select all

static quad_t _syscall(int fnum, void *args)
{
	// This function sets up the stack and arguments, invokes the kernel API,
	// cleans up the stack, and returns the return code.

	unsigned statusLo = 0;
	unsigned statusHi = 0;
	quad_t status = 0;

	if (!visopsys_in_kernel)
	{
		// Call the kernel
		kernelCall(fnum, args, statusLo, statusHi);
	}

	status = ((quad_t) statusHi << 32);
	status += statusLo;

	return (status);
}

[meowsoft]

Ok...., now i get this error message ?
Btw... how i can know my default assembler ?, i am using Ubuntu 18.04 running on Windows Subsytem for Linux ver 2 (WSL 2), windows 10 update 1809
Sorry... i am advanced in high programming language such .Net, PHP, Java, etc, but i am new in low level programming

root@DESKTOP-GF0PHJ4:/visopsys/visopsys-0.9-src# make
mkdir -p build/system

#Note : I cut this error message because your forum limited comments only for 60000 characters.

make[3]: Entering directory '/visopsys/visopsys-0.9-src/src/lib/libstdc++'
mkdir -p obj picobj ../../../build/system/libraries
g++ -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -fno-rtti -fno-exceptions -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -nostdinc -I../../include -I../../include/c++ -c _cxa.cpp -o obj/_cxa.o
g++ -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -fno-rtti -fno-exceptions -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -nostdinc -I../../include -I../../include/c++ -c ios.cpp -o obj/ios.o
g++ -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -fno-rtti -fno-exceptions -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -nostdinc -I../../include -I../../include/c++ -c iostream.cpp -o obj/iostream.o
g++ -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -fno-rtti -fno-exceptions -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -nostdinc -I../../include -I../../include/c++ -c istream.cpp -o obj/istream.o
g++ -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -fno-rtti -fno-exceptions -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -nostdinc -I../../include -I../../include/c++ -c memory.cpp -o obj/memory.o
g++ -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -fno-rtti -fno-exceptions -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -nostdinc -I../../include -I../../include/c++ -c new.cpp -o obj/new.o
new.cpp:44:6: error: the program should also define ‘void operator delete(void*, unsigned int)’ [-Werror=sized-deallocation]
void operator delete(void *ptr)
^~~~~~~~
new.cpp:50:6: error: the program should also define ‘void operator delete [](void*, unsigned int)’ [-Werror=sized-deallocation]
void operator delete[](void *ptr)
^~~~~~~~
cc1plus: all warnings being treated as errors
Makefile:62: recipe for target 'obj/new.o' failed
make[3]: *** [obj/new.o] Error 1
make[3]: Leaving directory '/visopsys/visopsys-0.9-src/src/lib/libstdc++'
Makefile:11: recipe for target 'all' failed
make[2]: *** [all] Error 2
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/src/lib'
Makefile:11: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/visopsys/visopsys-0.9-src/src'
Makefile:13: recipe for target 'all' failed
make: *** [all] Error 2

#### failed to build some targets (26 seconds) ####

[andymc]

OK, now I guess my basic C++ runtime support isn't complete enough for your compiler's tastes.

Looks like maybe your C++ compiler is using the C++14 standard by default, maybe (I'm not a C++ expert).

Can you change the C++CODEGEN line in Makefile.include to read as follows?:

Code: Select all

C++CODEGEN = ${CODEGEN} -std=c++11 -ffreestanding -fno-rtti -fno-exceptions

(adds -std=c++11)

These are all good fixes for me to add to the next release

[meowsoft]

Revision : I make changes to libstdc++\new.cpp, and fix to this previous problem, but gives new problems

#I add this code
void operator delete(void *ptr, unsigned int)
{
free(ptr);
}
#End

void operator delete(void *ptr)
{
free(ptr);
}

#I add this code
void operator delete[](void *ptr, unsigned int)
{
free(ptr);
}
#End

void operator delete[](void *ptr)
{
free(ptr);
}

[meowsoft]

New error is :

make[2]: Entering directory '/visopsys/visopsys-0.9-src/src/kernel'
mkdir -p obj
mkdir -p ../../build
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I. -I../include -DKERNEL -c kernelMain.c -o obj/kernelMain.o
gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I. -I../include -DKERNEL -O0 -Wno-strict-prototypes -c kernelApi.c -o obj/kernelApi.o
kernelApi.c: In function ‘kernelApi’:
kernelApi.c:2220:1: error: unsupported size for integer register [-Werror]
}
^
kernelApi.c:2220:1: error: unsupported size for integer register [-Werror]
cc1: all warnings being treated as errors
Makefile:199: recipe for target 'obj/kernelApi.o' failed
make[2]: *** [obj/kernelApi.o] Error 1
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/src/kernel'
Makefile:11: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/visopsys/visopsys-0.9-src/src'
Makefile:13: recipe for target 'all' failed
make: *** [all] Error 2

#### failed to build some targets (6 seconds) ####

[meowsoft]

Thank you so much for your attention

[andymc]

Thanks for helping me work out these problems

The latest error is basically the inverse of the first one. Edit the top of the kernelApi() function to add statusLo and statusHi:

Code: Select all

void kernelApi(unsigned CS __attribute__((unused)), unsigned *args)
{
	// This is the initial entry point for the kernel's API.  This
	// function will be first the recipient of all calls to the global
	// call gate.  This function will pass a pointer to the rest of the
	// arguments to the processCall function that does all the real work.
	// This funcion does the far return.

	quad_t status = 0;
	unsigned statusLo = 0;
	unsigned statusHi = 0;

and edit the bottom so it looks like this:

Code: Select all

	// Call the function
	status = functionPointer();

	statusLo = (status & 0xFFFFFFFF);
	statusHi = (status >> 32);

out:
	#if defined(DEBUG)
	kernelDebug(debug_api, "ret=%lld", status);
	#endif

	processorApiExit(stackAddress, statusLo, statusHi);
}

[meowsoft]

New error after changes in kernelApi.c:

gcc -Os -m32 -pipe -fno-common -fno-strict-aliasing -fno-builtin -fno-omit-frame-pointer -fno-asynchronous-unwind-tables -fno-stack-protector -ffreestanding -Wall -W -Wshadow -Wcast-align -Wsign-compare -Waggregate-return -Wmissing-format-attribute -Wredundant-decls -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -nostdinc -I. -I../include -DKERNEL -O0 -Wno-strict-prototypes -c kernelApi.c -o obj/kernelApi.o
kernelApi.c: In function ‘kernelApi’:
kernelApi.c:2029:11: error: variable ‘statusHi’ set but not used [-Werror=unused-but-set-variable]
unsigned statusHi = 0;
^~~~~~~~
kernelApi.c:2028:11: error: variable ‘statusLo’ set but not used [-Werror=unused-but-set-variable]
unsigned statusLo = 0;
^~~~~~~~
kernelApi.c:2224:1: error: unsupported size for integer register [-Werror]
}
^
kernelApi.c:2224:1: error: unsupported size for integer register [-Werror]
cc1: all warnings being treated as errors
Makefile:199: recipe for target 'obj/kernelApi.o' failed
make[2]: *** [obj/kernelApi.o] Error 1
make[2]: Leaving directory '/visopsys/visopsys-0.9-src/src/kernel'
Makefile:11: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/visopsys/visopsys-0.9-src/src'
Makefile:13: recipe for target 'all' failed
make: *** [all] Error 2

#### failed to build some targets (1 seconds) ####

[andymc]

Did you forget to change the end of the function (that second bit of code I pasted)?