Getting rid of unsupported platforms

Author: wberube

.vscode/c_cpp_properties.json

@@ -18,12 +18,6 @@
       "defines": ["__arm__", "__ARM_PCS"],
       "compilerPath": "toolchain/toolchain.hisilicon-hi3516ev200/bin/arm-openipc-linux-musleabi-gcc",
       "cStandard": "c11"
-    },{
-      "name": "arm9-glibc",
-      "includePath": ["${workspaceFolder}/**"],
-      "defines": ["__arm__", "__ARM_PCS"],
-      "compilerPath": "toolchain/arm926t-gcc13-musl-3_0/bin/arm-openipc-linux-musleabi-gcc",
-      "cStandard": "c11"
     },{
       "name": "arm9-musl3",
       "includePath": ["${workspaceFolder}/**"],
@@ -36,12 +30,6 @@
       "defines": ["__arm__", "__ARM_PCS"],
       "compilerPath": "toolchain/toolchain.hisilicon-hi3516cv200/bin/arm-openipc-linux-musleabi-gcc",
       "cStandard": "c11"
-    },{
-      "name": "arm9-uclibc",
-      "includePath": ["${workspaceFolder}/**"],
-      "defines": ["__arm__", "__ARM_PCS"],
-      "compilerPath": "toolchain/toolchain.grainmedia-gm8136/bin/arm-openipc-linux-uclibcgnueabi-gcc",
-      "cStandard": "c11"
     },{
       "name": "armhf-glibc",
       "includePath": ["${workspaceFolder}/**"],
@@ -54,18 +42,6 @@
       "defines": ["__arm__", "__ARM_PCS_VFP"],
       "compilerPath": "toolchain/toolchain.sigmastar-infinity6/bin/arm-openipc-linux-musleabihf-gcc",
       "cStandard": "c11"
-    },{
-      "name": "mips-musl",
-      "includePath": ["${workspaceFolder}/**"],
-      "defines": ["__mips__"],
-      "compilerPath": "toolchain/toolchain.ingenic-t31/bin/mipsel-openipc-linux-musl-gcc",
-      "cStandard": "c11"    
-    },{
-      "name": "riscv64-musl",
-      "includePath": ["${workspaceFolder}/**"],
-      "defines": ["__riscv", "__riscv__"],
-      "compilerPath": "toolchain/riscv64-lp64d--musl--stable-2024.05-1/bin/riscv64-linux-gcc",
-      "cStandard": "c11"    
     }
   ],
   "version": 4

src/compat.c

@@ -22,22 +22,34 @@ int sTaT(const char *path, struct _stat_ *buf)
     buf->st_mode = st.st_mode;
     return ret;
 }
+#else
+#include <fcntl.h>
+#include <sys/stat.h>
+
+int stat(const char *restrict path, struct stat *restrict buf)
+{
+    return fstatat(AT_FDCWD, path, buf, 0);
+}
 #endif
 #endif
 
 void __assert(void) {}
 void akuio_clean_invalidate_dcache(void) {}
+#ifndef __GLIBC__
 void backtrace(void) {}
 void backtrace_symbols(void) {}
-#ifndef __GLIBC__
+#endif
 void __ctype_b(void) {}
+#ifndef __GLIBC__
 void __ctype_b_loc(void) {}
 void __ctype_tolower(void) {}
 #endif
 void _MI_PRINT_GetDebugLevel(void) {}
 void __pthread_register_cancel(void) {}
 void __pthread_unregister_cancel(void) {}
+#ifndef __UCLIBC__
 void _stdlib_mb_cur_max(void) {}
+#endif
 
 float __expf_finite(float x) { return expf(x); }
 int __fgetc_unlocked(FILE *stream) { return fgetc(stream); }
@@ -47,6 +59,11 @@ void *mmap(void *start, size_t len, int prot, int flags, int fd, uint32_t off) {
     return (void*)syscall(SYS_mmap2, start, len, prot, flags, fd, off >> 12);
 }
 
+void *__mmap64(void *start, size_t len, int prot, int flags, int fd, off_t off) {
+    return (void*)syscall(SYS_mmap2, start, len, prot, flags, fd, off >> 12);
+}
+#if !(defined(__ARM_PCS_VFP) && defined(__UCLIBC__))
 void *mmap64(void *start, size_t len, int prot, int flags, int fd, off_t off) {
     return (void*)syscall(SYS_mmap2, start, len, prot, flags, fd, off >> 12);
-}
+}
+#endif