Changeset 585819d in mainline

Timestamp:

2006-03-16T00:35:30Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e591928

Parents:

aa59fa0

Message:

mmap() syscall.

Location:

libc

Files:

• generic/mmap.c (modified) (1 diff)
• include/unistd.h (modified) (1 diff)

libc/generic/mmap.c

@@ -30 +30 @@
 #include <unistd.h>
 
-/** Mremap syscall */
-void *mremap(void *address, size_t size, unsigned long flags)
+/** mmap syscall
+ *
+ * @param address Virtual address where to place new address space area.
+ * @param size Size of the area.
+ * @param flags Flags describing type of the area.
+ *
+ * @return address on success, (void *) -1 otherwise.
+ */
+void *mmap(void *address, size_t size, int flags)
+{
+        return (void *) __SYSCALL3(SYS_MMAP, (sysarg_t ) address, (sysarg_t) size, (sysarg_t) flags);
+}
+
+/** mremap syscall
+ *
+ * @param address Virtual address pointing into already existing address space area.
+ * @param size New requested size of the area.
+ * @param flags Currently unused.
+ *
+ * @return address on success, (void *) -1 otherwise.
+ */
+void *mremap(void *address, size_t size, int flags)
 {
         return (void *) __SYSCALL3(SYS_MREMAP, (sysarg_t ) address, (sysarg_t) size, (sysarg_t) flags);
 }
-
 
 static size_t heapsize = 0;

libc/include/unistd.h

@@ -36 +36 @@
 extern ssize_t write(int fd, const void * buf, size_t count);
 extern void _exit(int status);
-void * mremap(void *address, size_t size, unsigned long flags);
+void *mmap(void *address, size_t size, int flags);
+void *mremap(void *address, size_t size, int flags);
 void *sbrk(ssize_t incr);