Match and link FILE_POS

Former-commit-id: a1ea985b7c

.vscode/settings.json

@@ -10,6 +10,11 @@
   "editor.tabSize": 2,
   "files.associations": {
     "source_location": "cpp",
+    "stdio.h": "c",
+    "stddef.h": "c",
+    "errno.h": "c",
+    "ansi_files.h": "c",
+    "types.h": "c"
   },
   "files.autoSave": "onFocusChange",
   "files.insertFinalNewline": true,

asm/Runtime/FILE_POS.s

@@ -1,10 +1,10 @@
 .include "macros.inc"
 
-.section .sbss
-.balign 8
-.global errno
-errno:
-	.skip 0x8
+#.section .sbss
+#.balign 8
+#.global errno
+#errno:
+#	.skip 0x8
 
 .section .text, "ax"
 

configure.py

@@ -860,7 +860,8 @@ LIBS = [
             ["Runtime/locale", True],
             ["Runtime/direct_io", True],
             ["Runtime/file_io", True],
-            "Runtime/FILE_POS",
+            ["Runtime/errno", True],
+            ["Runtime/FILE_POS", True],
             "Runtime/mbstring",
             ["Runtime/mem", True],
             ["Runtime/mem_funcs", True],

ldscript.lcf

@@ -35,4 +35,5 @@ SECTIONS
 FORCEFILES 
 {
     __init_cpp_exceptions.o
+    errno.o
 }

libc/errno.h

@@ -10,7 +10,7 @@ extern int errno;
 #define ENOERR 0
 #define EDOM 33
 #define ERANGE 34
-#define EFPOS 35
+#define EFPOS 40
 #define ESIGPARM 36
 
 #ifdef __cplusplus

libc/stdio.h

@@ -108,7 +108,9 @@ int printf(const char*, ...);
 int sprintf(char* s, const char* format, ...);
 int vprintf(const char* format, va_list arg);
 int vsprintf(char* s, const char* format, va_list arg);
+size_t fread(const void*, size_t memb_size, size_t num_memb, FILE*);
 size_t fwrite(const void*, size_t memb_size, size_t num_memb, FILE*);
+int fseek(FILE * file, long offset, int mode);
 size_t __fwrite(const void*, size_t, size_t, FILE*);
 
 #ifdef __cplusplus

obj_files.mk

@@ -735,7 +735,7 @@ MSL_PPCEABI_BARE_H :=\
 	$(BUILD_DIR)/src/Runtime/locale.o\
 	$(BUILD_DIR)/src/Runtime/direct_io.o\
 	$(BUILD_DIR)/src/Runtime/file_io.o\
-	$(BUILD_DIR)/asm/Runtime/FILE_POS.o\
+	$(BUILD_DIR)/src/Runtime/FILE_POS.o\
 	$(BUILD_DIR)/asm/Runtime/mbstring.o\
 	$(BUILD_DIR)/src/Runtime/mem.o\
 	$(BUILD_DIR)/src/Runtime/mem_funcs.o\

src/Runtime/FILE_POS.c

@@ -0,0 +1,102 @@
+#include <ansi_files.h>
+#include <errno.h>
+
+inline fpos_t _ftell(FILE* file) {
+  int charsInUndoBuffer = 0;
+  fpos_t position;
+
+  unsigned char tmp_kind = file->mode.file_kind;
+  if (!(tmp_kind == __disk_file || tmp_kind == __console_file) || file->state.error) {
+    errno = EFPOS;
+    return (-1L);
+  }
+
+  if (file->state.io_state == __neutral)
+    return (file->position);
+
+  position = file->buffer_pos + (file->buffer_ptr - file->buffer);
+
+  if (file->state.io_state >= __rereading) {
+    charsInUndoBuffer = file->state.io_state - __rereading + 1;
+    position -= charsInUndoBuffer;
+  }
+
+  return (position);
+}
+
+long ftell(FILE* file) {
+  long retval;
+
+  retval = (long)_ftell(file);
+
+  return retval;
+}
+
+int _fseek(FILE* file, fpos_t offset, int mode) {
+  fpos_t position;
+  __pos_proc pos_proc;
+
+  unsigned char tmp_kind = file->mode.file_kind;
+  if (!(tmp_kind == __disk_file) || file->state.error) {
+    errno = EFPOS;
+    return (-1);
+  }
+
+  if (file->state.io_state == __writing) {
+    if (__flush_buffer(file, NULL) != __no_io_error) {
+      set_error(file);
+      errno = EFPOS;
+      return (-1);
+    }
+  }
+
+  if (mode == SEEK_CUR) {
+
+    mode = SEEK_SET;
+
+    if ((position = _ftell(file)) < 0)
+      position = 0;
+
+    offset += position;
+  }
+
+  if ((mode != SEEK_END) && (file->mode.io_mode != __read_write) &&
+      ((file->state.io_state == __reading) || (file->state.io_state == __rereading))) {
+    if ((offset >= file->position) || offset < file->buffer_pos) {
+      file->state.io_state = __neutral;
+    } else {
+      file->buffer_ptr = file->buffer + (offset - file->buffer_pos);
+      file->buffer_len = file->position - offset;
+      file->state.io_state = __reading;
+    }
+  } else {
+    file->state.io_state = __neutral;
+  }
+
+  if (file->state.io_state == __neutral) {
+    if ((pos_proc = file->position_proc) != 0 &&
+        (*pos_proc)(file->handle, &offset, mode, file->idle_proc)) {
+      set_error(file);
+      errno = EFPOS;
+      return (-1);
+    }
+
+    file->state.eof = 0;
+    file->position = offset;
+    file->buffer_len = 0;
+  }
+
+  return 0;
+}
+
+int fseek(FILE * file, long offset, int mode)
+{
+		fpos_t real_offset = (fpos_t)offset;
+		int retval;		
+		
+		
+		retval = _fseek(file, real_offset, mode);
+
+
+		return(retval);
+}

src/Runtime/errno.c

@@ -0,0 +1,3 @@
+#include <errno.h>
+
+int errno;