Merge pull request #1536 from luoliwoshang/feat/esp32c3-emulator-support

feat(esp32c3): QEMU emulator support

Author: xushiwei

internal/firmware/esp.go

@@ -84,10 +84,12 @@ func makeESPFirmareImage(infile, outfile, format string) error {
 	}
 
 	if makeImage {
-		// The bootloader starts at 0x1000, or 4096.
-		// TinyGo doesn't use a separate bootloader and runs the entire
-		// application in the bootloader location.
-		outf.Write(make([]byte, 4096))
+		// For QEMU emulation, we need to place the image at the correct offset.
+		// ESP32 (Xtensa): bootloader starts at 0x1000, so we pad 4KB of zeros.
+		// ESP32-C3 (RISC-V): bootloader starts at 0x0, so no padding needed.
+		if chip == "esp32" {
+			outf.Write(make([]byte, 4096))
+		}
 	}
 
 	// Chip IDs. Source:

targets/esp32c3-basic.json

@@ -0,0 +1,28 @@
+{
+	"inherits": [
+		"riscv32-esp"
+	],
+	"features": "+32bit,+c,+m,+zmmul,-a,-b,-d,-e,-experimental-smmpm,-experimental-smnpm,-experimental-ssnpm,-experimental-sspm,-experimental-ssqosid,-experimental-supm,-experimental-zacas,-experimental-zalasr,-experimental-zicfilp,-experimental-zicfiss,-f,-h,-relax,-shcounterenw,-shgatpa,-shtvala,-shvsatpa,-shvstvala,-shvstvecd,-smaia,-smcdeleg,-smcsrind,-smepmp,-smstateen,-ssaia,-ssccfg,-ssccptr,-sscofpmf,-sscounterenw,-sscsrind,-ssstateen,-ssstrict,-sstc,-sstvala,-sstvecd,-ssu64xl,-svade,-svadu,-svbare,-svinval,-svnapot,-svpbmt,-v,-xcvalu,-xcvbi,-xcvbitmanip,-xcvelw,-xcvmac,-xcvmem,-xcvsimd,-xesppie,-xsfcease,-xsfvcp,-xsfvfnrclipxfqf,-xsfvfwmaccqqq,-xsfvqmaccdod,-xsfvqmaccqoq,-xsifivecdiscarddlone,-xsifivecflushdlone,-xtheadba,-xtheadbb,-xtheadbs,-xtheadcmo,-xtheadcondmov,-xtheadfmemidx,-xtheadmac,-xtheadmemidx,-xtheadmempair,-xtheadsync,-xtheadvdot,-xventanacondops,-xwchc,-za128rs,-za64rs,-zaamo,-zabha,-zalrsc,-zama16b,-zawrs,-zba,-zbb,-zbc,-zbkb,-zbkc,-zbkx,-zbs,-zca,-zcb,-zcd,-zce,-zcf,-zcmop,-zcmp,-zcmt,-zdinx,-zfa,-zfbfmin,-zfh,-zfhmin,-zfinx,-zhinx,-zhinxmin,-zic64b,-zicbom,-zicbop,-zicboz,-ziccamoa,-ziccif,-zicclsm,-ziccrse,-zicntr,-zicond,-zicsr,-zifencei,-zihintntl,-zihintpause,-zihpm,-zimop,-zk,-zkn,-zknd,-zkne,-zknh,-zkr,-zks,-zksed,-zksh,-zkt,-ztso,-zvbb,-zvbc,-zve32f,-zve32x,-zve64d,-zve64f,-zve64x,-zvfbfmin,-zvfbfwma,-zvfh,-zvfhmin,-zvkb,-zvkg,-zvkn,-zvknc,-zvkned,-zvkng,-zvknha,-zvknhb,-zvks,-zvksc,-zvksed,-zvksg,-zvksh,-zvkt,-zvl1024b,-zvl128b,-zvl16384b,-zvl2048b,-zvl256b,-zvl32768b,-zvl32b,-zvl4096b,-zvl512b,-zvl64b,-zvl65536b,-zvl8192b",
+	"build-tags": [
+		"esp32c3",
+		"esp"
+	],
+	"serial": "usb",
+	"rtlib": "compiler-rt",
+	"libc": "newlib-esp32",
+	"linkerscript": "targets/esp32c3.memory.ld",
+	"binary-format": "esp32c3",
+	"flash-command": "esptool.py --chip=esp32c3 --port {port} write_flash 0x0 {bin}",
+	"serial-port": [
+		"303a:1001"
+	],
+	"openocd-interface": "esp_usb_jtag",
+	"openocd-target": "esp32c3",
+	"openocd-commands": [
+		"gdb_memory_map disable"
+	],
+	"gdb": [
+		"riscv32-esp-elf-gdb"
+	],
+	"emulator": "qemu-system-riscv32 -machine esp32c3 -nographic -drive file={img},if=mtd,format=raw -serial mon:stdio"
+}

targets/esp32c3.json

@@ -1,30 +1,8 @@
 {
 	"inherits": [
-		"riscv32-esp"
+		"esp32c3-basic"
 	],
-	"features": "+32bit,+c,+m,+zmmul,-a,-b,-d,-e,-experimental-smmpm,-experimental-smnpm,-experimental-ssnpm,-experimental-sspm,-experimental-ssqosid,-experimental-supm,-experimental-zacas,-experimental-zalasr,-experimental-zicfilp,-experimental-zicfiss,-f,-h,-relax,-shcounterenw,-shgatpa,-shtvala,-shvsatpa,-shvstvala,-shvstvecd,-smaia,-smcdeleg,-smcsrind,-smepmp,-smstateen,-ssaia,-ssccfg,-ssccptr,-sscofpmf,-sscounterenw,-sscsrind,-ssstateen,-ssstrict,-sstc,-sstvala,-sstvecd,-ssu64xl,-svade,-svadu,-svbare,-svinval,-svnapot,-svpbmt,-v,-xcvalu,-xcvbi,-xcvbitmanip,-xcvelw,-xcvmac,-xcvmem,-xcvsimd,-xesppie,-xsfcease,-xsfvcp,-xsfvfnrclipxfqf,-xsfvfwmaccqqq,-xsfvqmaccdod,-xsfvqmaccqoq,-xsifivecdiscarddlone,-xsifivecflushdlone,-xtheadba,-xtheadbb,-xtheadbs,-xtheadcmo,-xtheadcondmov,-xtheadfmemidx,-xtheadmac,-xtheadmemidx,-xtheadmempair,-xtheadsync,-xtheadvdot,-xventanacondops,-xwchc,-za128rs,-za64rs,-zaamo,-zabha,-zalrsc,-zama16b,-zawrs,-zba,-zbb,-zbc,-zbkb,-zbkc,-zbkx,-zbs,-zca,-zcb,-zcd,-zce,-zcf,-zcmop,-zcmp,-zcmt,-zdinx,-zfa,-zfbfmin,-zfh,-zfhmin,-zfinx,-zhinx,-zhinxmin,-zic64b,-zicbom,-zicbop,-zicboz,-ziccamoa,-ziccif,-zicclsm,-ziccrse,-zicntr,-zicond,-zicsr,-zifencei,-zihintntl,-zihintpause,-zihpm,-zimop,-zk,-zkn,-zknd,-zkne,-zknh,-zkr,-zks,-zksed,-zksh,-zkt,-ztso,-zvbb,-zvbc,-zve32f,-zve32x,-zve64d,-zve64f,-zve64x,-zvfbfmin,-zvfbfwma,-zvfh,-zvfhmin,-zvkb,-zvkg,-zvkn,-zvknc,-zvkned,-zvkng,-zvknha,-zvknhb,-zvks,-zvksc,-zvksed,-zvksg,-zvksh,-zvkt,-zvl1024b,-zvl128b,-zvl16384b,-zvl2048b,-zvl256b,-zvl32768b,-zvl32b,-zvl4096b,-zvl512b,-zvl64b,-zvl65536b,-zvl8192b",
-	"build-tags": [
-		"esp32c3",
-		"esp"
-	],
-	"serial": "usb",
-	"rtlib": "compiler-rt",
-	"libc": "newlib-esp32",
-	"linkerscript": "targets/esp32c3.memory.ld",
 	"extra-files": [
 		"targets/device/esp/esp32c3.c"
-	],
-	"binary-format": "esp32c3",
-	"flash-command": "esptool.py --chip=esp32c3 --port {port} write_flash 0x0 {bin}",
-	"serial-port": [
-		"303a:1001"
-	],
-	"openocd-interface": "esp_usb_jtag",
-	"openocd-target": "esp32c3",
-	"openocd-commands": [
-		"gdb_memory_map disable"
-	],
-	"gdb": [
-		"riscv32-esp-elf-gdb"
 	]
 }