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INSTALL.md

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Quick install instructions

Installing the pre-built binary

The release tar file contains a pre-built binary in the bin directory.

To install the pre-built file:

make destprefix={destprefix} install

Where {destprefix} defaults to /usr/local

This installs:

  • {destprefix}/bin/spitbol
  • {destprefix}/share/spitbol/{demo files}
  • {destprefix}/man/man1/spitbol.1

Rebuilding spitbol from source

Requirements:

  • gcc compiler (other compilers might work, but they have not been tested)
  • standard glibc library (review the C code in osint.c)
  • nasm
  • make

The spitbol build steps

The source code from spitbol, sbl.min, is written in minimal which is an assembly language for an abstract architecture. There is a minimal to x86_64 assembly language (nasm format) translator lex.sbl, asm.sbl and err.sbl which are written in spitbol. In order to rebuild from the minimal source requires that an existing spitbol compiler is available.

There are 2 methods to rebuild the spitbol binary from source

Using the prebuilt binary, bin/sbl

From the top level in the source directory, the spitbol target in the Makefile will use the prebuilt spitbol compiler that is in the bin directory.

make spitbol

This will create a sbl binary in the top level of the source directory

Builting without an available spitbol compiler

If a spitbol compiler is not available, pre-translated assembly files are provided in in the bootstrap directory.

From the top level in the source directory, the bootsbl target in the Makefile will use the pre-translated assembly files.

make bootsbl

This produces a bootsbl binary that can be used to re-build the source

make BASEBOL=./bootsbl spitbol

This will create a sbl file in the top level of the source directory.

Make targets and options

The following are the make targets:

sbl
is the primary build target and builds the sbl binary. Requires an existing spitbol compiler
spitbol
an alias for the sbl target
bininst
copies sbl to bin/sbl
install
installs the spitbol compiler (from bin/sbl), the demo source and the man page to the {destprefix} directories
bootsbl
builds the bootsbl binary just nasm and gcc. Does not require an existing spitbol compiler
checkboot
Developer target, verifies that the source files in bootstrap match the output of the `minimal` to assembly conversion
makeboot
Copies the output of the `minimal` translation to the bootstrap directory
clean
cleans built items from the source directory

The following make definition options that are used:

destprefix
target directory where spitbol, the demo files and the man page will be installed, defaults to destprefix=/usr/local
debug
if set to non-zero, will build spitbol with debugging information for gdb, defaults to debug=0
BASEBOL
path to the spitbol compiler used during the build process, defaults to BASEBOL=./bin/sbl