From 20adfc367f934071be343e9573c6ad0b439d9c45 Mon Sep 17 00:00:00 2001 From: Christian Kroll Date: Wed, 28 May 2014 16:39:08 +0200 Subject: [PATCH] finished and tested NetBSD support for i386 and amd64 --- README.md | 42 ++++++++++++++++++++++++-------------- defaults.mk | 19 ++++++++--------- ld_scripts/elf_i386_nbsd.x | 2 +- 3 files changed, 37 insertions(+), 26 deletions(-) diff --git a/README.md b/README.md index 61641a0..dbe141f 100644 --- a/README.md +++ b/README.md @@ -41,15 +41,15 @@ Games Build ===== -Supported build platforms are Linux, FreeBSD and Windows (via Cygwin). Due to -customized linker scripts, simulator support is currently limited to x86 and -x86_64 archs. Following dependencies have to be met: +Supported build platforms are Linux, FreeBSD, NetBSD and Windows (via Cygwin). +Due to customized linker scripts, simulator support is currently limited to x86 +and x86_64 archs. Following dependencies have to be met: -Linux / FreeBSD ---------------- +Linux / FreeBSD / NetBSD +------------------------ Package names are based on Debian/Ubuntu repositories. Please adapt the names -according to your Linux distribution (or FreeBSD for that matter). +according to your Linux distribution (or BSD for that matter). * build-essential (pulls in an ordinary gcc build tool chain for the host) * bc @@ -60,6 +60,7 @@ according to your Linux distribution (or FreeBSD for that matter). * binutils-avr * avrdude * freeglut3-dev +* bash (note to the BSD folks: bash is required for the config tool) Windows ------- @@ -90,12 +91,21 @@ Configure Open a (Cygwin) terminal, change to your checkout directory and type: > make menuconfig -This starts a curses based text interface for configuring certain aspects of -your target platform. Be careful if you use an IDE like Eclipse to manage the -build, as integrated terminal emulators tend to choke on curses generated shell -output. Make sure that 'make menuconfig' has been run at least once in an -ordinary terminal emulator after a fresh checkout or after issuing 'make -mrproper'. +In case you build on BSD, just use 'gmake' instead of 'make'. This starts an +Ncurses based text interface for configuring certain aspects of your target +platform. After a fresh checkout, the first thing you do is to load a profile +with sane defaults. In the menuconfig interface, select 'Load a Default +Configuration' and choose a preset. After hitting enter, the main menu returns +immediately. You can either tune your configuration or just exit (choose 'Yes' +at the confirmation dialog to save your stuff). + +Be careful if you use an IDE like Eclipse to manage the build, as +integrated terminal emulators tend to choke on Ncurses generated output. +Make sure that 'make menuconfig' has been run at least once in an ordinary +terminal emulator after a fresh checkout or after issuing 'make mrproper'. + +Note: Always use 'make clean' after changing something in the menu, because +subsequent builds may be broken if you don't. Compile ------- @@ -103,11 +113,13 @@ Compile To build for the actual target platform, just type: > make +This yields an 'image.hex' file which you can flash to your AVR device. + If you want to test and debug your code within a GUI application, you can use the simulator: > make simulator -In case you build on FreeBSD, just use 'gmake' instead of 'make'. +Again, use 'gmake' instead of 'make' on BSD. You can start the simulator by typing ./borgsim(.exe) @@ -116,8 +128,8 @@ Simulator Handling Please keep in mind that the simulator is NOT an emulator. All it does is compile the source code to a native host application so you can step through -your C-Code. The GUI thread reads the simulated frame buffer every 40ms and -draws its contents. +your C-Code with an ordinary host debugger. The GUI thread reads the simulated +frame buffer every 20ms (40ms on Windows) and draws its contents. Joystick directions are simulated by the WASD keys and SPACE acts as the fire button. The OpenGL based simulator (Linux/FreeBSD) enables you to adjust the diff --git a/defaults.mk b/defaults.mk index a3afb23..060d059 100644 --- a/defaults.mk +++ b/defaults.mk @@ -43,7 +43,7 @@ ifeq ($(findstring CYGWIN,$(OSTYPE)),CYGWIN) ifeq ($(MACHINE),i686) LDFLAGS_SIM = -T ld_scripts/i386pe.x else - $(error $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) + $(warning $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) endif endif LIBS_SIM = -lgdi32 -lwinmm -lm @@ -57,7 +57,7 @@ else ifeq ($(MACHINE),i386) LDFLAGS_SIM = -L/usr/local/lib -T ld_scripts/elf_i386_fbsd.x else - $(error $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) + $(warning $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) endif endif LIBS_SIM = -lglut -lpthread -lGL -lGLU -lm @@ -71,7 +71,7 @@ else ifeq ($(MACHINE),i386) LDFLAGS_SIM = -L/usr/pkg/lib -L/usr/X11R7/lib -T ld_scripts/elf_i386_nbsd.x -Wl,-R/usr/pkg/lib,-R/usr/X11R7/lib else - $(error $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) + $(warning $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) endif endif LIBS_SIM = -lglut -lpthread -lGL -lGLU -lm @@ -84,22 +84,21 @@ else ifeq ($(MACHINE),i686) LDFLAGS_SIM = -T ld_scripts/elf_i386.x else - $(error $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) + $(warning $(n)$(n)Simulator build is only supported on i386 and amd64.$(n)$(n)) endif endif LIBS_SIM = -lglut -lpthread -lGL -lGLU -lm else - ($(error $(n)$(n)Simulator build is not supported on your system.$(n)$(n)\ + ($(warning $(n)$(n)Simulator build is not supported on your system.$(n)$(n)\ Currently supported platforms:$(n) \ - Linux on x86 and amd64$(n) \ - FreeBSD on x86 and amd64$(n) \ - NetBSD on x86 and amd64$(n) \ - Windows (via Cygwin) on x86 and amd64) + Linux on i386 and amd64$(n) \ + FreeBSD on i386 and amd64$(n) \ + NetBSD on i386 and amd64$(n) \ + Windows (via Cygwin) on i386 and amd64) endif endif endif endif - ############################################################################## # the default target $(TARGET): diff --git a/ld_scripts/elf_i386_nbsd.x b/ld_scripts/elf_i386_nbsd.x index def6b6c..f2df3d5 100644 --- a/ld_scripts/elf_i386_nbsd.x +++ b/ld_scripts/elf_i386_nbsd.x @@ -3,7 +3,7 @@ OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") OUTPUT_ARCH(i386) ENTRY(_start) -SEARCH_DIR("=/usr/lib/i386"); +SEARCH_DIR("=/usr/lib"); SECTIONS { /* Read-only sections, merged into text segment: */