Squash commits for public release

libs/libc/include/stdlib.h

@@ -0,0 +1,64 @@
+#ifndef _LIBC_STDLIB_H
+#define _LIBC_STDLIB_H
+
+#include <stddef.h>
+#include <sys/cdefs.h>
+#include <sys/environ.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+#define EXIT_FAILURE 1
+#define EXIT_SUCCESS 0
+
+#ifndef NOMINMAX
+#ifndef max
+#define max(a, b) \
+    ({ __typeof__ (a) _a = (a); \
+       __typeof__ (b) _b = (b); \
+     _a > _b ? _a : _b; })
+#endif /* max */
+
+#ifndef min
+#define min(a, b) \
+    ({ __typeof__ (a) _a = (a); \
+       __typeof__ (b) _b = (b); \
+     _a < _b ? _a : _b; })
+#endif /* min */
+#endif /* NOMINMAX */
+
+static inline int abs(int i)
+{
+    return i < 0 ? -i : i;
+}
+
+/* malloc */
+extern void* malloc(size_t);
+extern void free(void*);
+extern void* calloc(size_t, size_t);
+extern void* realloc(void*, size_t);
+
+/* tools */
+int atoi(const char* s);
+
+/* exit */
+void abort() __attribute__((noreturn));
+void exit(int status) __attribute__((noreturn));
+
+/* pts */
+int posix_openpt(int flags);
+int ptsname_r(int fd, char* buf, size_t buflen);
+char* ptsname(int fd);
+
+/* env */
+int putenv(char* string);
+char* getenv(const char* name);
+int setenv(const char* name, const char* value, int overwrite);
+int unsetenv(const char* name);
+
+long strtol(const char* nptr, char** endptr, int base);
+void qsort(void* base, size_t nitems, size_t size, int (*compar)(const void*, const void*));
+
+__END_DECLS
+
+#endif // _LIBC_STDLIB_H