Skip to content
This repository
tag: libc-971020
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 114 lines (85 sloc) 3.735 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
/* 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.

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.

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
*/

#ifndef NTHEAP_H_
#define NTHEAP_H_

#include <windows.h>

/*
* Heap related stuff.
*/
#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_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 w32_major_version;
extern int w32_minor_version;

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);

/* 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);

unsigned long get_section_size (PIMAGE_SECTION_HEADER p_section);

/* 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_ */
Something went wrong with that request. Please try again.