mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-06 03:53:42 +00:00
Ayke van Laethem
98f84a497d
There were a few issues that were causing qemu-system-arm and
qemu-system-riscv to give the wrong exit codes. They are in fact capable
of exiting with 0 or 1 signalled from the running application, but this
functionality wasn't used. This commit changes this in the following
ways:
* It fixes SemiHosting codes, which were incorrectly written in
decimal while they should have been written in hexadecimal (oops!).
* It modifies all the baremetal main functions (aka reset handlers) to
exit with `exit(0)` instead of `abort()`.
* It changes `syscall.Exit` to call `exit(code)` instead of `abort()`
on baremetal targets.
* It adds these new exit functions where necessary, implemented in a
way that signals the correct exit status if running under QEMU.
All in all, this means that `tinygo test` doesn't have to look at the
output of a test to determine the outcome. It can simply look at the
exit code.
64 lines
917 B
Go
64 lines
917 B
Go
// +build rp2040
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package runtime
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import (
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"device/arm"
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"machine"
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)
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// machineTicks is provided by package machine.
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func machineTicks() uint64
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type timeUnit uint64
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// ticks returns the number of ticks (microseconds) elapsed since power up.
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func ticks() timeUnit {
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t := machineTicks()
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return timeUnit(t)
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}
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func ticksToNanoseconds(ticks timeUnit) int64 {
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return int64(ticks) * 1000
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}
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func nanosecondsToTicks(ns int64) timeUnit {
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return timeUnit(ns / 1000)
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}
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func sleepTicks(d timeUnit) {
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if d == 0 {
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return
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}
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sleepUntil := ticks() + d
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for ticks() < sleepUntil {
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}
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}
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func waitForEvents() {
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arm.Asm("wfe")
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}
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func putchar(c byte) {
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machine.Serial.WriteByte(c)
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}
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// machineInit is provided by package machine.
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func machineInit()
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func init() {
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machineInit()
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machine.Serial.Configure(machine.UARTConfig{})
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}
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func postinit() {}
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//export Reset_Handler
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func main() {
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preinit()
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run()
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exit(0)
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}
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