fix: update ARM architecture settings in QEMU configuration and adjust jmp_buf size in setjmp.h

Author: luodeb

scripts/make/qemu.mk

@@ -22,7 +22,7 @@ else ifeq ($(ARCH), aarch64)
     machine := virt
   endif
 else ifeq ($(ARCH), arm)
-  machine := virt,gic-version=3
+  machine := virt,gic-version=2
 else ifeq ($(ARCH), loongarch64)
   machine := virt
   override MEM := 1G

ulib/axlibc/include/setjmp.h

@@ -11,6 +11,8 @@ typedef unsigned long __jmp_buf[26];
 typedef unsigned long __jmp_buf[8];
 #elif defined(__loongarch__)
 typedef unsigned long __jmp_buf[21];
+#elif defined(__arm__)
+typedef unsigned long __jmp_buf[64];  /* r4-r14, d8-d15 (VFP) */
 #endif
 
 typedef struct __jmp_buf_tag {

ulib/axlibc/include/stdint.h

@@ -41,7 +41,7 @@ typedef int64_t intmax_t;
 #if __riscv_xlen == 64 || defined(__x86_64__) || defined(__aarch64__) || defined(__loongarch__)
 typedef int64_t intptr_t;
 typedef uint64_t uintptr_t;
-#elif __riscv_xlen == 32 || defined(__i386__)
+#elif __riscv_xlen == 32 || defined(__i386__) || defined(__arm__)
 typedef int32_t intptr_t;
 typedef uint32_t uintptr_t;
 #endif