tinygo/targets/cortex-m-qemu.json

{
	"inherits": ["cortex-m"],
	"llvm-target": "armv7m-none-eabi",
	"build-tags": ["qemu", "lm3s6965"],
	"cflags": [
		"--target=armv7m-none-eabi",
		"-Qunused-arguments"
	],
	"linkerscript": "targets/lm3s6965.ld",
	"extra-files": [
		"targets/cortex-m-qemu.s"
	],
	"emulator": ["qemu-system-arm", "-machine", "lm3s6965evb", "-semihosting", "-nographic", "-kernel"]
}
all: add emulation support for Cortex-M3 with QEMU 6 years ago			`{`
targets: let specific targets inherit more general targets This avoids a ton of duplication and makes it easier to change a generic target (for example, the "cortex-m" target) for all boards that use it. Also, by making it possible to inherit properties from a parent target specification, it is easier to support out-of-tree boards that don't have to be updated so often. A target specification for a special-purpose board can simply inherit the specification of a supported chip and override the properites it needs to override (like the programming interface). 6 years ago			`"inherits": ["cortex-m"],`
all: add emulation support for Cortex-M3 with QEMU 6 years ago			`"llvm-target": "armv7m-none-eabi",`
targets: let specific targets inherit more general targets This avoids a ton of duplication and makes it easier to change a generic target (for example, the "cortex-m" target) for all boards that use it. Also, by making it possible to inherit properties from a parent target specification, it is easier to support out-of-tree boards that don't have to be updated so often. A target specification for a special-purpose board can simply inherit the specification of a supported chip and override the properites it needs to override (like the programming interface). 6 years ago			`"build-tags": ["qemu", "lm3s6965"],`
all: compile and link using clang, where possible 6 years ago			`"cflags": [`
			`"--target=armv7m-none-eabi",`
			`"-Qunused-arguments"`
			`],`
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/lm3s6965.ld",`
all: compile and link using clang, where possible 6 years ago			`"extra-files": [`
targets: rename qemu target to cortex-m-qemu The target is intended to emulate the Cortex-M, not to be a generic QEMU target. 5 years ago			`"targets/cortex-m-qemu.s"`
all: add emulation support for Cortex-M3 with QEMU 6 years ago			`],`
			`"emulator": ["qemu-system-arm", "-machine", "lm3s6965evb", "-semihosting", "-nographic", "-kernel"]`
			`}`