fix(esp32): drop libnosys getreent stub

Author: luoliwoshang

internal/crosscompile/compile/libc/newlibesp.go

@@ -1115,7 +1115,6 @@ func getNewlibESP32ConfigXtensa(baseDir, target string) compile.CompileConfig {
 					filepath.Join(baseDir, "libgloss", "libnosys", "write.c"),
 					filepath.Join(baseDir, "libgloss", "libnosys", "getentropy.c"),
 					filepath.Join(baseDir, "libgloss", "libnosys", "_exit.c"),
-					filepath.Join(baseDir, "libgloss", "libnosys", "getreent.c"),
 					filepath.Join(baseDir, "libgloss", "libnosys", "time.c"),
 					filepath.Join(baseDir, "libgloss", "libnosys", "fcntl.c"),
 					filepath.Join(baseDir, "libgloss", "libnosys", "chdir.c"),
@@ -1269,7 +1268,6 @@ func getNewlibESP32ConfigXtensa(baseDir, target string) compile.CompileConfig {
 					"-D_NO_WORDEXP",
 					"-D_NO_POPEN",
 					"-DHAVE_RENAME",
-					"-DGETREENT_PROVIDED",
 					"-DSIGNAL_PROVIDED",
 					"-isystem" + filepath.Join(libcDir, "include"),
 					"-I" + libcDir,
@@ -1990,7 +1988,6 @@ func getNewlibESP32ConfigXtensa(baseDir, target string) compile.CompileConfig {
 					"-DHAVE_BLKSIZE",
 					"-DHAVE_OPENDIR",
 					"-DHAVE_RENAME",
-					"-DGETREENT_PROVIDED",
 					"-DSIGNAL_PROVIDED",
 					"-D__ESP__",
 					"-isystem" + filepath.Join(libcDir, "include"),

targets/device/esp/esp32_semihost_init.c

@@ -15,9 +15,6 @@
 	"rtlib": "compiler-rt",
 	"libc": "newlib-esp32",
 	"linkerscript": "targets/esp32.memory.elf.ld",
-	"extra-files": [
-		"targets/device/esp/esp32_semihost_init.c"
-	],
 	"binary-format": "esp32",
 	"flash-command": "esptool.py --chip=esp32 --port {port} write_flash 0x1000 {bin} -ff 80m -fm dout",
 	"emulator": "qemu-system-xtensa -semihosting -machine esp32 -nographic -drive file={img},if=mtd,format=raw",