feat port: added wake attribute for generic port functions

port/generic/log.c

@@ -9,7 +9,7 @@
 
 /* TODO: PORTME */
 
-int
+__bfdev_weak int
 bfport_log_write(bfdev_log_message_t *msg)
 {
     return 0;

port/generic/stdio.c

@@ -8,7 +8,7 @@
 
 /* TODO: PORTME */
 
-int
+__bfdev_weak int
 bfport_vsnprintf(char *s, bfdev_size_t maxlen, const char *fmt,
                  bfdev_va_list arg)
 {

port/generic/stdlib.c

@@ -4,41 +4,45 @@
  */
 
 #include <port/stdlib.h>
+#include <bfdev/prandom.h>
 #include <export.h>
 
 /* TODO: PORTME */
 
-__bfdev_malloc void *
+static
+BFDEV_DEFINE_PRANDOM(generic_rand);
+
+__bfdev_weak __bfdev_malloc void *
 bfport_malloc(bfdev_size_t size)
 {
     return BFDEV_NULL;
 }
 
-__bfdev_malloc void *
+__bfdev_weak __bfdev_malloc void *
 bfport_calloc(bfdev_size_t nmemb, bfdev_size_t size)
 {
     return BFDEV_NULL;
 }
 
-__bfdev_malloc void *
+__bfdev_weak __bfdev_malloc void *
 bfport_realloc(void *ptr, bfdev_size_t size)
 {
     return BFDEV_NULL;
 }
 
-void
+__bfdev_weak void
 bfport_free(void *ptr)
 {
     return;
 }
 
-int
+__bfdev_weak int
 bfport_rand(void)
 {
-    return 0;
+    return bfdev_prandom_value(&generic_rand);
 }
 
-__bfdev_noreturn void
+__bfdev_weak __bfdev_noreturn void
 bfport_abort(void)
 {
     for (;;);

port/generic/string.c

@@ -6,7 +6,7 @@
 #include <port/string.h>
 #include <export.h>
 
-void *
+__bfdev_weak void *
 bfport_memcpy(void *dest, const void *src, bfdev_size_t n)
 {
     const unsigned char *nsrc;
@@ -21,7 +21,7 @@ bfport_memcpy(void *dest, const void *src, bfdev_size_t n)
     return dest;
 }
 
-void *
+__bfdev_weak void *
 bfport_memset(void *s, int c, bfdev_size_t n)
 {
     unsigned char *xs;
@@ -33,7 +33,7 @@ bfport_memset(void *s, int c, bfdev_size_t n)
     return s;
 }
 
-int
+__bfdev_weak int
 bfport_memcmp(const void *s1, const void *s2, bfdev_size_t n)
 {
     const unsigned char *su1, *su2;
@@ -48,7 +48,7 @@ bfport_memcmp(const void *s1, const void *s2, bfdev_size_t n)
     return res;
 }
 
-int
+__bfdev_weak int
 bfport_strcmp(const char *s1, const char *s2)
 {
     int cp;
@@ -62,7 +62,7 @@ bfport_strcmp(const char *s1, const char *s2)
     return cp;
 }
 
-char *
+__bfdev_weak char *
 bfport_strchr(const char *s, int c)
 {
     for (; *s != (char)c; ++s) {
@@ -73,7 +73,7 @@ bfport_strchr(const char *s, int c)
     return (char *)s;
 }
 
-bfdev_size_t
+__bfdev_weak bfdev_size_t
 bfport_strspn(const char *s, const char *accept)
 {
     const unsigned char *p, *a;
@@ -93,7 +93,7 @@ bfport_strspn(const char *s, const char *accept)
     return count;
 }
 
-bfdev_size_t
+__bfdev_weak bfdev_size_t
 bfport_strcspn(const char *s, const char *reject)
 {
     const unsigned char *p, *r;
@@ -111,7 +111,7 @@ bfport_strcspn(const char *s, const char *reject)
     return count;
 }
 
-char *
+__bfdev_weak char *
 bfport_strcpy(char *dest, const char *src)
 {
     unsigned char *tmp;
@@ -123,7 +123,7 @@ bfport_strcpy(char *dest, const char *src)
     return dest;
 }
 
-char *
+__bfdev_weak char *
 bfport_strncpy(char *dest, const char *src, bfdev_size_t n)
 {
     unsigned char *tmp;
@@ -136,7 +136,7 @@ bfport_strncpy(char *dest, const char *src, bfdev_size_t n)
     return dest;
 }
 
-bfdev_size_t
+__bfdev_weak bfdev_size_t
 bfport_strlen(const char *s)
 {
     const unsigned char *len;
@@ -148,7 +148,7 @@ bfport_strlen(const char *s)
     return (char *)len - s;
 }
 
-bfdev_size_t
+__bfdev_weak bfdev_size_t
 bfport_strnlen(const char *s, bfdev_size_t len)
 {
     const unsigned char *sc;