add initial clang support

1 files changed, 21 insertions, 12 deletions

diff --git a/include/string.h b/include/string.h
index c9f8839..bbf24fe 100644
--- a/include/string.h
+++ b/include/string.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015-2016 Dimitris Papastamos <sin@2f30.org>
+ * Copyright (C) 2022 q66 <q66@chimera-linux.org>
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted.
@@ -38,7 +39,8 @@ extern "C" {
 
 __access(write_only, 1)
 __access(read_only, 2, 3)
-_FORTIFY_FN(memcpy) void *memcpy(void *__od, const void *__os, size_t __n)
+_FORTIFY_FN(memcpy) void *memcpy(void * _FORTIFY_POS0 __od,
+                                 const void * _FORTIFY_POS0 __os, size_t __n)
 {
         size_t __bd = __bos(__od, 0);
         size_t __bs = __bos(__os, 0);
@@ -57,7 +59,8 @@ _FORTIFY_FN(memcpy) void *memcpy(void *__od, const void *__os, size_t __n)
 
 __access(write_only, 1)
 __access(read_only, 2, 3)
-_FORTIFY_FN(memmove) void *memmove(void *__d, const void *__s, size_t __n)
+_FORTIFY_FN(memmove) void *memmove(void * _FORTIFY_POS0 __d,
+                                   const void * _FORTIFY_POS0 __s, size_t __n)
 {
         size_t __bd = __bos(__d, 0);
         size_t __bs = __bos(__s, 0);
@@ -68,7 +71,7 @@ _FORTIFY_FN(memmove) void *memmove(void *__d, const void *__s, size_t __n)
 }
 
 __access(write_only, 1)
-_FORTIFY_FN(memset) void *memset(void *__d, int __c, size_t __n)
+_FORTIFY_FN(memset) void *memset(void * _FORTIFY_POS0 __d, int __c, size_t __n)
 {
         size_t __b = __bos(__d, 0);
 
@@ -83,7 +86,7 @@ _FORTIFY_FN(memset) void *memset(void *__d, int __c, size_t __n)
 #undef stpcpy
 __access(write_only, 1)
 __access(read_only, 2)
-_FORTIFY_FN(stpcpy) char *stpcpy(char *__d, const char *__s)
+_FORTIFY_FN(stpcpy) char *stpcpy(char * _FORTIFY_POS0 __d, const char *__s)
 {
         size_t __n = strlen(__s) + 1;
 
@@ -102,7 +105,8 @@ _FORTIFY_FN(stpcpy) char *stpcpy(char *__d, const char *__s)
 #undef stpncpy
 __access(write_only, 1)
 __access(read_only, 2, 3)
-_FORTIFY_FN(stpncpy) char *stpncpy(char *__d, const char *__s, size_t __n)
+_FORTIFY_FN(stpncpy) char *stpncpy(char * _FORTIFY_POS0 __d, const char *__s,
+                                   size_t __n)
 {
         /* trap if pointers are overlapping but not if dst == src.
          * gcc seems to like to generate code that relies on dst == src */
@@ -119,7 +123,7 @@ _FORTIFY_FN(stpncpy) char *stpncpy(char *__d, const char *__s, size_t __n)
 
 __access (read_write, 1)
 __access (read_only, 2)
-_FORTIFY_FN(strcat) char *strcat(char *__d, const char *__s)
+_FORTIFY_FN(strcat) char *strcat(char * _FORTIFY_POS0 __d, const char *__s)
 {
         size_t __b = __bos(__d, 0);
 
@@ -130,7 +134,7 @@ _FORTIFY_FN(strcat) char *strcat(char *__d, const char *__s)
 
 __access (write_only, 1)
 __access (read_only, 2)
-_FORTIFY_FN(strcpy) char *strcpy(char *__d, const char *__s)
+_FORTIFY_FN(strcpy) char *strcpy(char * _FORTIFY_POS0 __d, const char *__s)
 {
         size_t __n = strlen(__s) + 1;
 
@@ -148,7 +152,8 @@ _FORTIFY_FN(strcpy) char *strcpy(char *__d, const char *__s)
 
 __access (read_write, 1)
 __access (read_only, 2, 3)
-_FORTIFY_FN(strncat) char *strncat(char *__d, const char *__s, size_t __n)
+_FORTIFY_FN(strncat) char *strncat(char * _FORTIFY_POS0 __d, const char *__s,
+                                   size_t __n)
 {
         size_t __b = __bos(__d, 0);
 
@@ -165,7 +170,8 @@ _FORTIFY_FN(strncat) char *strncat(char *__d, const char *__s, size_t __n)
 
 __access (write_only, 1)
 __access (read_only, 2, 3)
-_FORTIFY_FN(strncpy) char *strncpy(char *__d, const char *__s, size_t __n)
+_FORTIFY_FN(strncpy) char *strncpy(char * _FORTIFY_POS0 __d,
+                                   const char *__s, size_t __n)
 {
         /* trap if pointers are overlapping but not if dst == src.
          * gcc seems to like to generate code that relies on dst == src */
@@ -183,7 +189,8 @@ _FORTIFY_FN(strncpy) char *strncpy(char *__d, const char *__s, size_t __n)
 #undef mempcpy
 __access(write_only, 1)
 __access(read_only, 2, 3)
-_FORTIFY_FN(mempcpy) void *mempcpy(void *__d, const void *__s, size_t __n)
+_FORTIFY_FN(mempcpy) void *mempcpy(void * _FORTIFY_POS0 __d,
+                                   const void * _FORTIFY_POS0 __s, size_t __n)
 {
         size_t __bd = __bos(__d, 0);
         size_t __bs = __bos(__s, 0);
@@ -199,7 +206,8 @@ _FORTIFY_FN(mempcpy) void *mempcpy(void *__d, const void *__s, size_t __n)
 #undef strlcpy
 __access (read_write, 1)
 __access (read_only, 2, 3)
-_FORTIFY_FN(strlcat) size_t strlcat(char *__d, const char *__s, size_t __n)
+_FORTIFY_FN(strlcat) size_t strlcat(char * _FORTIFY_POS0 __d,
+                                    const char *__s, size_t __n)
 {
         size_t __b = __bos(__d, 0);
 
@@ -210,7 +218,8 @@ _FORTIFY_FN(strlcat) size_t strlcat(char *__d, const char *__s, size_t __n)
 
 __access (write_only, 1)
 __access (read_only, 2, 3)
-_FORTIFY_FN(strlcpy) size_t strlcpy(char *__d, const char *__s, size_t __n)
+_FORTIFY_FN(strlcpy) size_t strlcpy(char * _FORTIFY_POS0 __d,
+                                    const char *__s, size_t __n)
 {
         size_t __b = __bos(__d, 0);