Newlib: update to version 3.0.0

libc/xtensa-lx106-elf/include/machine/fastmath.h

@@ -46,7 +46,6 @@ double EXFUN(fast_loge,(double));
 #define	log2(x)		fast_log2(x)
 #define	loge(x)		fast_loge(x)
 
-#ifdef _HAVE_STDC
 /* These functions are in assembler, they really do take floats. This
    can only be used with a real ANSI compiler */
 
@@ -94,7 +93,6 @@ float EXFUN(fast_logef,(float));
 #define	log10f(x)	fast_log10f(x)
 #define	log2f(x)	fast_log2f(x)
 #define	logef(x)	fast_logef(x)
-#endif
 /* Override the functions defined in math.h */
 #endif /* __sysvnecv70_target */
 

libc/xtensa-lx106-elf/include/machine/ieeefp.h

@@ -78,7 +78,9 @@
 # else
 #  define __IEEE_BIG_ENDIAN
 # endif
-# define __OBSOLETE_MATH_DEFAULT 0
+# if __ARM_FP & 0x8
+#  define __OBSOLETE_MATH_DEFAULT 0
+# endif
 #else
 # define __IEEE_BIG_ENDIAN
 # ifdef __ARMEL__

libc/xtensa-lx106-elf/include/machine/setjmp.h

@@ -386,7 +386,9 @@ _BEGIN_STD_C
 #endif
 
 #ifdef __riscv
-#define _JBTYPE long
+/* _JBTYPE using long long to make sure the alignment is align to 8 byte,
+   otherwise in rv32imafd, store/restore FPR may mis-align.  */
+#define _JBTYPE long long
 #ifdef __riscv_32e
 #define _JBLEN ((4*sizeof(long))/sizeof(long))
 #else