Support Linux ABI and (optionally) virtual memory

1 files changed, 26 insertions, 0 deletions

diff --git a/pk/vm.h b/pk/vm.h
new file mode 100644
index 0000000..349d9ef
--- /dev/null
+++ b/pk/vm.h
@@ -0,0 +1,26 @@
+#ifndef _VM_H
+#define _VM_H
+
+#include "syscall.h"
+#include "file.h"
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#define PROT_READ 1
+#define PROT_WRITE 2
+#define PROT_EXEC 4
+
+#define MAP_PRIVATE 0x2
+#define MAP_FIXED 0x10
+#define MAP_ANONYMOUS 0x20
+#define MAP_POPULATE 0x8000
+
+void vm_init();
+int handle_page_fault(uintptr_t vaddr, int prot);
+void populate_mapping(const void* start, size_t size, int prot);
+uintptr_t __do_mmap(uintptr_t addr, size_t length, int prot, int flags, file_t* file, off_t offset);
+sysret_t do_mmap(uintptr_t addr, size_t length, int prot, int flags, int fd, off_t offset);
+sysret_t do_brk(uintptr_t addr);
+
+#endif