From 03971211efacad02e2a492a5d6f41184bb27ed63 Mon Sep 17 00:00:00 2001
From: jonas <jonaswen@163.com>
Date: Fri, 15 Nov 2024 15:44:16 +0800
Subject: [PATCH] [add]posix_memalign

---
 .../libc/compilers/armlibc/syscall_mem.c      | 37 +++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/components/libc/compilers/armlibc/syscall_mem.c b/components/libc/compilers/armlibc/syscall_mem.c
index f831bd1..92655b4 100644
--- a/components/libc/compilers/armlibc/syscall_mem.c
+++ b/components/libc/compilers/armlibc/syscall_mem.c
@@ -27,10 +27,20 @@
     #pragma import(__use_no_heap)
 #endif /* __CC_ARM */
 
+#if defined (__clang__) && defined (RT_USING_CPLUSPLUS)
+    #define RT_USING_POSIX_MEMALIGN
+#endif
+
+#include <sys/errno.h>
+
 void *malloc(size_t n)
 {
 #ifdef RT_USING_HEAP
+    #ifndef RT_USING_POSIX_MEMALIGN
     return rt_malloc(n);
+    #else
+    return rt_malloc_align(n, RT_ALIGN_SIZE);
+    #endif
 #else
     _NO_HEAP_ERROR();
     return RT_NULL;
@@ -63,9 +73,36 @@ RTM_EXPORT(calloc);
 void free(void *rmem)
 {
 #ifdef RT_USING_HEAP
+    #ifndef RT_USING_POSIX_MEMALIGN
     rt_free(rmem);
+    #else
+    rt_free_align(rmem);
+    #endif
 #else
     _NO_HEAP_ERROR();
 #endif
 }
 RTM_EXPORT(free);
+
+#if defined RT_USING_POSIX_MEMALIGN
+int posix_memalign(void **ptr, size_t align, size_t size)
+{
+    if ((align & (align - 1)) != 0)
+    {
+        return -EINVAL;
+    }
+
+    if(align != RT_ALIGN(align, sizeof(void *)))
+    {
+        return -EINVAL;
+    }
+
+    *ptr = rt_malloc_align(size, align);
+
+    if(*ptr == RT_NULL)
+    {
+        return -ENOMEM;
+    }
+    return 0;
+}
+#endif