Posix compat work

include/assert.h

@@ -0,0 +1,21 @@
+
+#ifndef __ASSERT_H__
+#define __ASSERT_H__
+
+#ifndef NDEBUG
+
+#define assert(_expr)
+
+#else
+
+#define assert(_expr) \
+    if (e) { \
+	__assert(__func__, __FILE__, __LINE__, #e); \
+    }
+
+#endif
+
+void __assert(const char *func, const char *file, int line, const char *expr);
+
+#endif /* __ASSERT_H__ */
+

include/stdint.h

@@ -2,23 +2,7 @@
 #ifndef _STDINT_H_
 #define _STDINT_H_
 
-typedef signed char         int8_t;
+#include <sys/types.h>
-typedef signed short        int16_t;
-typedef signed int          int32_t;
-typedef signed long long    int64_t;
-
-typedef unsigned char       uint8_t;
-typedef unsigned short      uint16_t;
-typedef unsigned int        uint32_t;
-typedef unsigned long long  uint64_t;
-
-typedef int64_t intptr_t;
-typedef uint64_t uintptr_t;
-
-typedef uint64_t size_t;
-typedef int64_t ssize_t;
-
-typedef int64_t off_t;
 
 #endif /* _STDINT_H_ */
 

include/stdio.h

@@ -0,0 +1,6 @@
+
+#ifndef __STDIO_H__
+#define __STDIO_H__
+
+#endif /* __STDIO_H__ */
+

include/stdlib.h

@@ -8,6 +8,7 @@
 
 int atexit(void (*function)(void));
 void exit(int status);
+void abort(void);
 
 #endif /* __STDLIB_H__ */
 

include/time.h

@@ -0,0 +1,6 @@
+
+#ifndef __TIME_H__
+#define __TIME_H__
+
+#endif /* __TIME_H__ */
+

lib/libc/SConscript

@@ -7,8 +7,10 @@ libc_env = env.Clone()
 src = [ ]
 
 src_common = [
+    "assert.c",
     "exit.c",
     "syscall.c",
+    "posix/mman.c",
 ]
 
 src_amd64 = [

lib/libc/assert.c

@@ -0,0 +1,11 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+__assert(const char *func, const char *file, int line, const char *expr)
+{
+    //fprintf(stderr, "Assert (%s): %s %s:%d\n", expr, func, file, line);
+    abort();
+}
+

lib/libc/posix/mman.c

@@ -0,0 +1,40 @@
+
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#if defined(__x86_64__)
+#include <sys/cdefs.h>
+#include <machine/amd64.h>
+#else
+#error "Unsupported Architecture!"
+#endif
+
+int
+getpagesizes(size_t *pagesize, int nelem)
+{
+#if defined(__x86_64__)
+    if (pagesize) {
+	if (nelem >= 1)
+	    pagesize[0] = PGSIZE;
+	if (nelem >= 2)
+	    pagesize[1] = LARGE_PGSIZE;
+	if (nelem >= 3)
+	    pagesize[2] = HUGE_PGSIZE;
+	return (nelem > 3 ? 3 : nelem);
+    }
+    return 3;
+#else
+#error "Unsupported Architecture!"
+#endif
+}
+
+void*
+mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset)
+{
+}
+
+int
+munmap(void *addr, size_t len)
+{
+}
+

sys/SConscript

@@ -62,6 +62,7 @@ if (env["ARCH"] == "amd64"):
 src.append(src_common)
 
 kern_env.Append(LINKFLAGS = ['-T', ldscript[1:], '-N', '-nostdlib'])
+kern_env.Append(CPPFLAGS = ['-D_KERNEL'])
 kern_env.Append(CPPFLAGS = ['-ffreestanding', '-fno-builtin', '-nostdinc',
 			    '-mno-red-zone', '-mno-mmx', '-mno-sse', 
 			    '-mcmodel=large'])

sys/include/mman.h

@@ -0,0 +1,23 @@
+
+#ifndef __SYS_MMAN_H__
+#define __SYS_MMAN_H__
+
+#define PROT_NONE	0x00
+#define PROT_READ	0x01
+#define PROT_WRITE	0x02
+#define PROT_EXEC	0x04
+
+#define MAP_FILE	0x0010
+#define MAP_ANON	0x0020
+#define MAP_FIXED	0x0040
+
+
+#ifdef _KERNEL
+#else /* _KERNEL */
+int getpagesizes(size_t *pagesize, int nlem);
+void *mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset);
+int munmap(void *addr, size_t len);
+#endif /* _KERNEL */
+
+#endif /* __SYS_MMAN_H__ */
+

sys/include/types.h

@@ -0,0 +1,23 @@
+
+#ifndef __SYS_TYPES_H__
+#define __SYS_TYPES_H__
+
+typedef signed char         int8_t;
+typedef signed short        int16_t;
+typedef signed int          int32_t;
+typedef signed long long    int64_t;
+
+typedef unsigned char       uint8_t;
+typedef unsigned short      uint16_t;
+typedef unsigned int        uint32_t;
+typedef unsigned long long  uint64_t;
+
+typedef int64_t intptr_t;
+typedef uint64_t uintptr_t;
+typedef uint64_t size_t;
+typedef int64_t ssize_t;
+
+typedef int64_t off_t;
+
+#endif /* __SYS_TYPES_H__ */
+