/* Heap management routines (including unexec) for GNU Emacs on Windows NT.
Copyright (C) 1994 Free Software Foundation, Inc.
- This file is part of GNU Emacs.
+This file is part of GNU Emacs.
- GNU Emacs is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any later
- version.
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
- GNU Emacs is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with GNU Emacs; see the file COPYING. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+You should have received a copy of the GNU General Public License
+along with GNU Emacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.
Geoff Voelker (voelker@cs.washington.edu) 7-29-94
*/
#include <windows.h>
+#define ROUND_UP(p, align) (((DWORD)(p) + (align)-1) & ~((align)-1))
+#define ROUND_DOWN(p, align) ((DWORD)(p) & ~((align)-1))
+
/*
* Heap related stuff.
*/
-#define get_data_region_base() (char *) 0x00030000
-#define get_reserved_heap_size() (0x00d00000 - 0x00030000)
+#define get_reserved_heap_size() reserved_heap_size
#define get_committed_heap_size() (get_data_end () - get_data_start ())
#define get_heap_start() get_data_start ()
#define get_heap_end() get_data_end ()
#define get_page_size() sysinfo_cache.dwPageSize
#define get_allocation_unit() sysinfo_cache.dwAllocationGranularity
#define get_processor_type() sysinfo_cache.dwProcessorType
-#define get_nt_major_version() nt_major_version
-#define get_nt_minor_version() nt_minor_version
+#define get_w32_major_version() w32_major_version
+#define get_w32_minor_version() w32_minor_version
extern unsigned char *get_data_start();
extern unsigned char *get_data_end();
-extern unsigned long data_region_size;
+extern unsigned long reserved_heap_size;
extern SYSTEM_INFO sysinfo_cache;
-extern BOOL need_to_recreate_heap;
-extern int nt_major_version;
-extern int nt_minor_version;
+extern OSVERSIONINFO osinfo_cache;
+extern BOOL using_dynamic_heap;
+extern int w32_major_version;
+extern int w32_minor_version;
+extern int w32_build_number;
+
+enum {
+ OS_WIN95 = 1,
+ OS_NT
+};
+
+extern int os_subtype;
/* Emulation of Unix sbrk(). */
extern void *sbrk (unsigned long size);
-/* Recreate the heap created during dumping. */
-extern void recreate_heap (char *executable_path);
+/* Initialize heap structures for sbrk on startup. */
+extern void init_heap ();
/* Round the heap to this size. */
extern void round_heap (unsigned long size);
-/* Load in the dumped .bss section. */
-extern void read_in_bss (char *name);
-
-/* Map in the dumped heap. */
-extern void map_in_heap (char *name);
-
/* Cache system info, e.g., the NT page size. */
extern void cache_system_info (void);
-/* Round ADDRESS up to be aligned with ALIGN. */
-extern unsigned char *round_to_next (unsigned char *address,
- unsigned long align);
+/* ----------------------------------------------------------------- */
+/* Useful routines for manipulating memory-mapped files. */
+
+typedef struct file_data {
+ char *name;
+ unsigned long size;
+ HANDLE file;
+ HANDLE file_mapping;
+ unsigned char *file_base;
+} file_data;
+
+#define OFFSET_TO_RVA(var,section) \
+ (section->VirtualAddress + ((DWORD)(var) - section->PointerToRawData))
+
+#define RVA_TO_OFFSET(var,section) \
+ (section->PointerToRawData + ((DWORD)(var) - section->VirtualAddress))
+
+#define RVA_TO_PTR(var,section,filedata) \
+ ((void *)(RVA_TO_OFFSET(var,section) + (filedata).file_base))
+
+int open_input_file (file_data *p_file, char *name);
+int open_output_file (file_data *p_file, char *name, unsigned long size);
+void close_file_data (file_data *p_file);
+
+/* Return pointer to section header for named section. */
+IMAGE_SECTION_HEADER * find_section (char * name, IMAGE_NT_HEADERS * nt_header);
+
+/* Return pointer to section header for section containing the given
+ relative virtual address. */
+IMAGE_SECTION_HEADER * rva_to_section (DWORD rva, IMAGE_NT_HEADERS * nt_header);
#endif /* NTHEAP_H_ */
HCoop / bpt / emacs.git / blobdiff