lwip2: cleanup logging and use newlib printf (#8769)

https://github.com/d-a-v/esp82xx-nonos-linklayer/pull/61

tools/sdk/lwip2/builder

@@ -1 +1 @@
-Subproject commit cffd11fb091b27f8bd37ea84353adbeb8bf20cd7
+Subproject commit 8e3c4eec00ec7f3962705ee095a310642953b5fb

tools/sdk/lwip2/include/glue.h

@@ -118,20 +118,4 @@ err_glue_t	glue2esp_linkoutput		(int netif_idx, void* ref2save, void* data, size
 #define lwip_xt_rsil(level) (__extension__({uint32_t state; __asm__ __volatile__("rsil %0," __STRINGIFY(level) : "=a" (state) :: "memory"); state;}))
 #define lwip_xt_wsr_ps(state)  __asm__ __volatile__("wsr %0,ps; isync" :: "a" (state) : "memory")
 
-// quickfix: workaround for definition of __PRI32(x) in inttypes.h
-// it has changed with recent version of xtensa-gcc
-// __INT32 is missing
-// gcc-4.x:    __PRI32(x) is __STRINGIFY(l##x)
-// gcc-10.2.0: __PRI32(x) is __INT32 __STRINGIFY(x)
-#include <inttypes.h>
-#if !defined(__INT8)
-#define __INT8
-#endif
-#if !defined(__INT16)
-#define __INT16
-#endif
-#if !defined(__INT32)
-#define __INT32 "l"
-#endif
-
 #endif // GLUE_H

tools/sdk/lwip2/include/gluedebug.h

@@ -9,11 +9,9 @@
 // this is needed separately from lwipopts.h
 // because it is shared by both sides of glue
 
-#define UNDEBUG		1	// 0 or 1 (1: uassert removed)
+#define UNDEBUG		1	// 0 or 1 (1: uassert removed = saves flash)
 #define UDEBUG		0	// 0 or 1 (glue debug)
-#define UDUMP		0	// 0 or 1 (glue / dump packet)
-#define UDEBUGINDEX	0	// 0 or 1 (show debug line number)
-#define UDEBUGSTORE	0	// 0 or 1 (store debug into buffer until doprint_allow=1=serial-available)
+#define UDUMP		0	// 0 or 1 (glue: dump packet)
 
 #define ULWIPDEBUG	0	// 0 or 1 (trigger lwip debug)
 #define ULWIPASSERT	0	// 0 or 1 (trigger lwip self-check, 0 saves flash)
@@ -24,8 +22,6 @@
 #define STRING_IN_FLASH 0	// *print("fmt is stored in flash")
 #endif
 
-#define ROTBUFLEN_BIT	11	// (UDEBUGSTORE=1) doprint()'s buffer: 11=2048B
-
 #if ULWIPDEBUG
 //#define LWIP_DBG_TYPES_ON	(LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)
 #define LWIP_DBG_TYPES_ON	(LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH)
@@ -45,17 +41,11 @@ extern void (*phy_capture) (int netif_idx, const char* data, size_t len, int out
 }
 #endif
 
-
 /////////////////////////////////////////////////////////////////////////////
 #if ARDUINO
 #include <sys/pgmspace.h>
 #endif
 
-#if UDEBUG && UDEBUGSTORE
-#warning use 'doprint_allow=1' right after Serial is enabled
-extern int doprint_allow;
-#endif
-
 // print definitions:
 // uprint(): always used by glue, defined as doprint() in debug mode or nothing()
 // os_printf(): can be redefined as doprint()
@@ -65,41 +55,21 @@ extern int doprint_allow;
 #if STRING_IN_FLASH && !defined(USE_OPTIMIZE_PRINTF)
 #define USE_OPTIMIZE_PRINTF	// at least used in arduino/esp8266
 #endif
-// os_printf_plus() missing in osapi.h (fixed in arduino's sdk-2.1):
-//extern int os_printf_plus (const char * format, ...) __attribute__ ((format (printf, 1, 2)));
 
 #include <osapi.h> // os_printf* definitions + ICACHE_RODATA_ATTR
 
-#if UDEBUG && (UDEBUGINDEX || UDEBUGSTORE)
-// doprint() is used
-
-#undef	os_printf
-#define	os_printf(x...)		do { doprint(x); } while (0)
-
-#if STRING_IN_FLASH
-
-#define doprint(fmt, ...) \
-	do { \
-		static const char flash_str[] ICACHE_RODATA_ATTR STORE_ATTR = fmt; \
-		doprint_minus(flash_str, ##__VA_ARGS__); \
-	} while(0)
-
-#else // !STRING_IN_FLASH
-
-#define doprint(fmt, ...) doprint_minus(fmt, ##__VA_ARGS__)
-
-#endif // !STRING_IN_FLASH
-
-int doprint_minus (const char* format, ...) __attribute__ ((format (printf, 1, 2))); // format in flash
-
-#else // !( UDEBUG && (UDEBUGINDEX || UDEBUGSTORE) )
-
-#define doprint(x...)		do { os_printf(x); } while (0)
-
-#endif // !( UDEBUG && (UDEBUGINDEX || UDEBUGSTORE) )
+#if defined(ARDUINO)
+// os_printf() does not understand ("%hhx",0x12345678) => "78") and prints 'h' instead
+// now hacking/using ::printf() from updated and patched esp-quick-toolchain-by-Earle
+#include <stdio.h>
+#undef os_printf
+#undef os_printf_plus
+#define os_printf printf
+#define os_printf_plus printf
+#endif
 
 #if UDEBUG
-#define uprint(x...)		do { doprint(x); } while (0)
+#define uprint(x...)		do { os_printf(x); } while (0)
 #else
 #define uprint(x...)		do { (void)0; } while (0)
 #endif
@@ -127,7 +97,7 @@ do { if ((assertion) == 0) { \
 
 #define ualwaysassert(assertion...)	udoassert(assertion)
 
-#define uerror(x...)		do { doprint(x); } while (0)
+#define uerror(x...)		do { os_printf(x); } while (0)
 #define uhalt() 		do { *((int*)0) = 0; /* this triggers gdb */ } while (0)
 #define nl()			do { uprint("\n"); } while (0)