backported fixes from 256boss

[bootcensus] / src / libc / stdlib.h

diff --git a/src/libc/stdlib.h b/src/libc/stdlib.h
index 9c28e74..981cf69 100644 (file)
--- a/src/libc/stdlib.h
+++ b/src/libc/stdlib.h
@@ -1,10 +1,28 @@
+/*
+pcboot - bootable PC demo/game kernel
+Copyright (C) 2018-2019  John Tsiombikas <nuclear@member.fsf.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY, without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
 #ifndef STDLIB_H_
 #define STDLIB_H_
 
-#include <inttypes.h>
+#include <stddef.h>
 
-typedef int32_t ssize_t;
-typedef uint32_t size_t;
+#define RAND_MAX       2147483647
+
+#define abs(x) __builtin_abs(x)
 
 int atoi(const char *str);
 long atol(const char *str);
@@ -13,8 +31,23 @@ long strtol(const char *str, char **endp, int base);
 void itoa(int val, char *buf, int base);
 void utoa(unsigned int val, char *buf, int base);
 
+double atof(const char *str);
+double strtod(const char *str, char **endp);
+
+int atexit(void (*func)(void));
+
+void abort(void);
+
+void qsort(void *arr, size_t count, size_t size, int (*cmp)(const void*, const void*));
+
+int rand(void);
+int rand_r(unsigned int *seedp);
+void srand(unsigned int seed);
+
 /* defined in malloc.c */
 void *malloc(size_t sz);
+void *calloc(size_t num, size_t sz);
+void *realloc(void *ptr, size_t sz);
 void free(void *ptr);
 
 #endif /* STDLIB_H_ */