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tinygo/targets/gameboy-advance.json

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targets: add support for GameBoy Advance Only tested in an emulator (mGBA). Almost nothing is supported, but drawing to the screen works.
5 years ago
{
"llvm-target": "thumb4-none-eabi",
"cpu": "arm7tdmi",
"build-tags": ["gameboyadvance", "arm7tdmi", "baremetal", "linux", "arm"],
"goos": "linux",
"goarch": "arm",
"compiler": "clang",
"linker": "ld.lld",
gameboy-advance: include compiler-rt in build This avoids errors like the following: ld.lld-9: error: undefined symbol: __umodsi3 ld.lld-9: error: undefined symbol: __aeabi_uidivmod
5 years ago
"rtlib": "compiler-rt",
all: include picolibc for bare metal targets This is necessary for better CGo support on bare metal. Existing libraries expect to be able to include parts of libc and expect to be able to link to those symbols. Because with this all targets have a working libc, it is now possible to add tests to check that a libc in fact works basically. Not all parts of picolibc are included, such as the math or stdio parts. These should be added later, when needed. This commit also avoids the need for the custom memcpy/memset/memcmp symbols that are sometimes emitted by LLVM. The C library will take care of that.
5 years ago
"libc": "picolibc",
targets: add support for GameBoy Advance Only tested in an emulator (mGBA). Almost nothing is supported, but drawing to the screen works.
5 years ago
"cflags": [
"-g",
"--target=thumb4-none-eabi",
"-mcpu=arm7tdmi",
"-Oz",
"-Werror",
"-fshort-enums",
"-Qunused-arguments",
"-fno-exceptions", "-fno-unwind-tables",
"-ffunction-sections", "-fdata-sections"
],
"ldflags": [
compileopts: add linkerscript key Setting the linker script as one property (instead of as part of the generic ldflags property) allows it to be overriden. This is important for the SoftDevice on Nordic chips, because the SoftDevice takes up a fixed part of the flash/RAM and the application must be flashed at a different position. With this linkerscript option, it is possible to create (for example) a pca10040-s132v6 that overrides the default linker script.
5 years ago
"--gc-sections"
targets: add support for GameBoy Advance Only tested in an emulator (mGBA). Almost nothing is supported, but drawing to the screen works.
5 years ago
],
compileopts: add linkerscript key Setting the linker script as one property (instead of as part of the generic ldflags property) allows it to be overriden. This is important for the SoftDevice on Nordic chips, because the SoftDevice takes up a fixed part of the flash/RAM and the application must be flashed at a different position. With this linkerscript option, it is possible to create (for example) a pca10040-s132v6 that overrides the default linker script.
5 years ago
"linkerscript": "targets/gameboy-advance.ld",
targets: add support for GameBoy Advance Only tested in an emulator (mGBA). Almost nothing is supported, but drawing to the screen works.
5 years ago
"extra-files": [
"targets/gameboy-advance.s"
],
gameboy-advance: enable debugging with GDB
5 years ago
"gdb": "gdb-multiarch",
"emulator": ["mgba", "-3"]
targets: add support for GameBoy Advance Only tested in an emulator (mGBA). Almost nothing is supported, but drawing to the screen works.
5 years ago
}