all: change //go:export to //export

This is the kind that is used in Go (actually CGo) for exporting
functions. I think it's best to use //export instead of our custom
//go:export pragma, for consistency (they are equivalent in TinyGo).
Therefore I've updated all instances to the standard format (except for
two that are updated in https://github.com/tinygo-org/tinygo/pull/1024).

No smoke tests changed (when comparing the output hash), except for some
wasm tests that include DWARF debug info and tend to be flaky anyway.

src/runtime/arch_wasm.go

@@ -14,7 +14,7 @@ const TargetBits = 32
 //go:extern __heap_base
 var heapStartSymbol [0]byte
 
-//go:export llvm.wasm.memory.size.i32
+//export llvm.wasm.memory.size.i32
 func wasm_memory_size(index int32) int32
 
 var (

src/runtime/math.go

@@ -63,7 +63,7 @@ func math_Ceil(x float64) float64 {
 	return math_ceil(x)
 }
 
-//go:export llvm.ceil.f64
+//export llvm.ceil.f64
 func llvm_ceil(x float64) float64
 
 //go:linkname math_ceil math.ceil
@@ -119,7 +119,7 @@ func math_Floor(x float64) float64 {
 	return math_floor(x)
 }
 
-//go:export llvm.floor.f64
+//export llvm.floor.f64
 func llvm_floor(x float64) float64
 
 //go:linkname math_floor math.floor
@@ -175,7 +175,7 @@ func math_Max(x, y float64) float64 {
 	return math_max(x, y)
 }
 
-//go:export llvm.maximum.f64
+//export llvm.maximum.f64
 func llvm_maximum(x, y float64) float64
 
 //go:linkname math_max math.max
@@ -189,7 +189,7 @@ func math_Min(x, y float64) float64 {
 	return math_min(x, y)
 }
 
-//go:export llvm.minimum.f64
+//export llvm.minimum.f64
 func llvm_minimum(x, y float64) float64
 
 //go:linkname math_min math.min
@@ -239,7 +239,7 @@ func math_Sqrt(x float64) float64 {
 	return math_sqrt(x)
 }
 
-//go:export llvm.sqrt.f64
+//export llvm.sqrt.f64
 func llvm_sqrt(x float64) float64
 
 //go:linkname math_sqrt math.sqrt
@@ -265,7 +265,7 @@ func math_Trunc(x float64) float64 {
 	return math_trunc(x)
 }
 
-//go:export llvm.trunc.f64
+//export llvm.trunc.f64
 func llvm_trunc(x float64) float64
 
 //go:linkname math_trunc math.trunc

src/runtime/panic.go

@@ -2,7 +2,7 @@ package runtime
 
 // trap is a compiler hint that this function cannot be executed. It is
 // translated into either a trap instruction or a call to abort().
-//go:export llvm.trap
+//export llvm.trap
 func trap()
 
 // Builtin function panic(msg), used as a compiler intrinsic.

src/runtime/runtime_arm7tdmi.go

@@ -33,7 +33,7 @@ var _edata [0]byte
 func postinit() {}
 
 // Entry point for Go. Initialize all packages and call main.main().
-//go:export main
+//export main
 func main() {
 	// Initialize .data and .bss sections.
 	preinit()

src/runtime/runtime_atsamd21.go

@@ -15,7 +15,7 @@ type timeUnit int64
 
 func postinit() {}
 
-//go:export Reset_Handler
+//export Reset_Handler
 func main() {
 	preinit()
 	run()

src/runtime/runtime_atsamd51.go

@@ -14,7 +14,7 @@ type timeUnit int64
 
 func postinit() {}
 
-//go:export Reset_Handler
+//export Reset_Handler
 func main() {
 	preinit()
 	run()

src/runtime/runtime_avr.go

@@ -36,7 +36,7 @@ var _sbss [0]byte
 //go:extern _ebss
 var _ebss [0]byte
 
-//go:export main
+//export main
 func main() {
 	preinit()
 	run()

src/runtime/runtime_cortexm.go

@@ -74,7 +74,7 @@ type interruptStack struct {
 // For details, see:
 // https://community.arm.com/developer/ip-products/system/f/embedded-forum/3257/debugging-a-cortex-m0-hard-fault
 // https://blog.feabhas.com/2013/02/developing-a-generic-hard-fault-handler-for-arm-cortex-m3cortex-m4/
-//go:export handleHardFault
+//export handleHardFault
 func handleHardFault(sp *interruptStack) {
 	print("fatal error: ")
 	if uintptr(unsafe.Pointer(sp)) < 0x20000000 {

src/runtime/runtime_cortexm_qemu.go

@@ -19,7 +19,7 @@ var timestamp timeUnit
 
 func postinit() {}
 
-//go:export Reset_Handler
+//export Reset_Handler
 func main() {
 	preinit()
 	run()

src/runtime/runtime_fe310.go

@@ -18,7 +18,7 @@ type timeUnit int64
 
 func postinit() {}
 
-//go:export main
+//export main
 func main() {
 	// Zero the PLIC enable bits on startup: they are not zeroed at reset.
 	sifive.PLIC.ENABLE[0].Set(0)

src/runtime/runtime_nrf.go

@@ -19,7 +19,7 @@ func systemInit()
 
 func postinit() {}
 
-//go:export Reset_Handler
+//export Reset_Handler
 func main() {
 	systemInit()
 	preinit()

src/runtime/runtime_stm32.go

@@ -6,7 +6,7 @@ type timeUnit int64
 
 func postinit() {}
 
-//go:export Reset_Handler
+//export Reset_Handler
 func main() {
 	preinit()
 	run()

src/runtime/runtime_tinygoriscv_qemu.go

@@ -19,7 +19,7 @@ var timestamp timeUnit
 
 func postinit() {}
 
-//go:export main
+//export main
 func main() {
 	preinit()
 	run()

src/runtime/runtime_unix.go

@@ -6,22 +6,22 @@ import (
 	"unsafe"
 )
 
-//go:export putchar
+//export putchar
 func _putchar(c int) int
 
-//go:export usleep
+//export usleep
 func usleep(usec uint) int
 
-//go:export malloc
+//export malloc
 func malloc(size uintptr) unsafe.Pointer
 
-//go:export abort
+//export abort
 func abort()
 
-//go:export exit
+//export exit
 func exit(code int)
 
-//go:export clock_gettime
+//export clock_gettime
 func clock_gettime(clk_id int32, ts *timespec)
 
 type timeUnit int64
@@ -41,7 +41,7 @@ const CLOCK_MONOTONIC_RAW = 4
 func postinit() {}
 
 // Entry point for Go. Initialize all packages and call main.main().
-//go:export main
+//export main
 func main() int {
 	preinit()
 
@@ -83,5 +83,5 @@ func extalloc(size uintptr) unsafe.Pointer {
 	return malloc(size)
 }
 
-//go:export free
+//export free
 func extfree(ptr unsafe.Pointer)

src/runtime/runtime_wasm.go

@@ -53,14 +53,14 @@ func setEventHandler(fn func()) {
 	handleEvent = fn
 }
 
-//go:export resume
+//export resume
 func resume() {
 	go func() {
 		handleEvent()
 	}()
 }
 
-//go:export go_scheduler
+//export go_scheduler
 func go_scheduler() {
 	scheduler()
 }
@@ -69,10 +69,10 @@ const asyncScheduler = true
 
 // This function is called by the scheduler.
 // Schedule a call to runtime.scheduler, do not actually sleep.
-//go:export runtime.sleepTicks
+//export runtime.sleepTicks
 func sleepTicks(d timeUnit)
 
-//go:export runtime.ticks
+//export runtime.ticks
 func ticks() timeUnit
 
 // Abort executes the wasm 'unreachable' instruction.