Added new library.h header for libwine definitions.
Added getpagesize() and wine_anon_mmap() portability functions.
This commit is contained in:
Alexandre Julliard
parent
8d1462b614
commit
85423c6a6b
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@ -0,0 +1,30 @@
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/*
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* Definitions for the Wine library
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*
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* Copyright 2000 Alexandre Julliard
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*/
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#ifndef __WINE_WINE_LIBRARY_H
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#define __WINE_WINE_LIBRARY_H
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#include <sys/types.h>
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/* dll loading */
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struct _IMAGE_NT_HEADERS;
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typedef void (*load_dll_callback_t)( const struct _IMAGE_NT_HEADERS *, const char * );
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extern void wine_dll_set_callback( load_dll_callback_t load );
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extern void *wine_dll_load( const char *filename );
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extern void wine_dll_unload( void *handle );
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/* debugging */
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extern void wine_dbg_add_option( const char *name, unsigned char set, unsigned char clear );
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/* portability */
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extern void *wine_anon_mmap( void *start, size_t size, int prot, int flags );
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#endif /* __WINE_WINE_LIBRARY_H */
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@ -77,6 +77,10 @@ int getsockopt(int socket, int level, int option_name, void *option_value, size_
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void *memmove(void *dest, const void *src, unsigned int len);
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#endif /* !defined(HAVE_MEMMOVE) */
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#ifndef HAVE_GETPAGESIZE
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size_t getpagesize(void);
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#endif /* HAVE_GETPAGESIZE */
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#ifndef HAVE_INET_NETWORK
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unsigned long inet_network(const char *cp);
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#endif /* !defined(HAVE_INET_NETWORK) */
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@ -23,6 +23,9 @@
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#include <errno.h>
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#include <fcntl.h>
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#include <termios.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#ifdef HAVE_LIBIO_H
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# include <libio.h>
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#endif
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@ -103,6 +106,22 @@ const char *strerror( int err )
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}
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#endif /* HAVE_STRERROR */
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/***********************************************************************
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* getpagesize
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*/
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#ifndef HAVE_GETPAGESIZE
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size_t getpagesize(void)
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{
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# ifdef __svr4__
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return sysconf(_SC_PAGESIZE);
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# else
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# error Cannot get the page size on this platform
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# endif
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}
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#endif /* HAVE_GETPAGESIZE */
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/***********************************************************************
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* clone
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*/
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@ -339,3 +358,35 @@ int statfs(const char *name, struct statfs *info)
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#endif /* defined(__BEOS__) */
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}
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#endif /* !defined(HAVE_STATFS) */
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/***********************************************************************
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* wine_anon_mmap
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*
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* Portable wrapper for anonymous mmaps
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*/
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void *wine_anon_mmap( void *start, size_t size, int prot, int flags )
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{
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static int fdzero = -1;
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#ifdef MAP_ANON
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flags |= MAP_ANON;
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#else
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if (fdzero == -1)
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{
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if ((fdzero = open( "/dev/zero", O_RDONLY )) == -1)
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{
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perror( "/dev/zero: open" );
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exit(1);
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}
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}
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#endif /* MAP_ANON */
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/* Linux EINVAL's on us if we don't pass MAP_PRIVATE to an anon mmap */
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#ifdef MAP_SHARED
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flags &= ~MAP_SHARED;
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#endif
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#ifdef MAP_PRIVATE
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flags |= MAP_PRIVATE;
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#endif
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return mmap( start, size, prot, flags, fdzero, 0 );
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}
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@ -24,6 +24,8 @@
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#include "winbase.h"
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#include "wine/exception.h"
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#include "wine/unicode.h"
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#include "wine/library.h"
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#include "wine/port.h"
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#include "winerror.h"
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#include "file.h"
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#include "process.h"
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@ -433,10 +435,10 @@ static LPVOID map_image( HANDLE hmapping, int fd, char *base, DWORD total_size,
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/* zero-map the whole range */
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if ((ptr = VIRTUAL_mmap( -1, base, total_size, 0,
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if ((ptr = wine_anon_mmap( base, total_size,
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PROT_READ | PROT_WRITE | PROT_EXEC, 0 )) == (char *)-1)
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{
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ptr = VIRTUAL_mmap( -1, NULL, total_size, 0,
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ptr = wine_anon_mmap( NULL, total_size,
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PROT_READ | PROT_WRITE | PROT_EXEC, 0 );
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if (ptr == (char *)-1)
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{
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@ -580,15 +582,7 @@ static LPVOID map_image( HANDLE hmapping, int fd, char *base, DWORD total_size,
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#ifndef page_mask
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DECL_GLOBAL_CONSTRUCTOR(VIRTUAL_Init)
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{
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# ifdef HAVE_GETPAGESIZE
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page_size = getpagesize();
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# else
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# ifdef __svr4__
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page_size = sysconf(_SC_PAGESIZE);
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# else
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# error Cannot get the page size on this platform
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# endif
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# endif
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page_mask = page_size - 1;
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/* Make sure we have a power of 2 */
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assert( !(page_size & page_mask) );
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@ -668,39 +662,13 @@ DWORD VIRTUAL_HandleFault( LPCVOID addr )
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* Wrapper for mmap() that handles anonymous mappings portably,
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* and falls back to read if mmap of a file fails.
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*/
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LPVOID VIRTUAL_mmap( int unix_handle, LPVOID start, DWORD size,
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LPVOID VIRTUAL_mmap( int fd, LPVOID start, DWORD size,
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DWORD offset, int prot, int flags )
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{
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int fd = -1;
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int pos;
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LPVOID ret;
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if (unix_handle == -1)
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{
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#ifdef MAP_ANON
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flags |= MAP_ANON;
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#else
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static int fdzero = -1;
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if (fdzero == -1)
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{
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if ((fdzero = open( "/dev/zero", O_RDONLY )) == -1)
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{
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perror( "/dev/zero: open" );
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ExitProcess(1);
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}
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}
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fd = fdzero;
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#endif /* MAP_ANON */
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/* Linux EINVAL's on us if we don't pass MAP_PRIVATE to an anon mmap */
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#ifdef MAP_SHARED
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flags &= ~MAP_SHARED;
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#endif
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#ifdef MAP_PRIVATE
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flags |= MAP_PRIVATE;
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#endif
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}
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else fd = unix_handle;
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if (fd == -1) return wine_anon_mmap( start, size, prot, flags );
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if ((ret = mmap( start, size, prot, flags, fd, offset )) != (LPVOID)-1)
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return ret;
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@ -709,7 +677,6 @@ LPVOID VIRTUAL_mmap( int unix_handle, LPVOID start, DWORD size,
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/* page-aligned (EINVAL), or because the underlying filesystem */
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/* does not support mmap() (ENOEXEC,ENODEV), we do it by hand. */
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if (unix_handle == -1) return ret;
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if ((errno != ENOEXEC) && (errno != EINVAL) && (errno != ENODEV)) return ret;
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if (prot & PROT_WRITE)
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{
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@ -723,7 +690,7 @@ LPVOID VIRTUAL_mmap( int unix_handle, LPVOID start, DWORD size,
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}
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/* Reserve the memory with an anonymous mmap */
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ret = VIRTUAL_mmap( -1, start, size, 0, PROT_READ | PROT_WRITE, flags );
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ret = wine_anon_mmap( start, size, PROT_READ | PROT_WRITE, flags );
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if (ret == (LPVOID)-1) return ret;
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/* Now read in the file */
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if ((pos = lseek( fd, offset, SEEK_SET )) == -1)
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@ -814,8 +781,7 @@ LPVOID WINAPI VirtualAlloc(
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if (type & MEM_SYSTEM)
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ptr = base;
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else
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ptr = (UINT)VIRTUAL_mmap( -1, (LPVOID)base, view_size, 0,
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VIRTUAL_GetUnixProt( vprot ), 0 );
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ptr = (UINT)wine_anon_mmap( (LPVOID)base, view_size, VIRTUAL_GetUnixProt( vprot ), 0 );
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if (ptr == (UINT)-1)
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{
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SetLastError( ERROR_OUTOFMEMORY );
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@ -941,8 +907,7 @@ BOOL WINAPI VirtualFree(
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/* Decommit the pages by remapping zero-pages instead */
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if (VIRTUAL_mmap( -1, (LPVOID)base, size, 0, VIRTUAL_GetUnixProt( 0 ),
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MAP_FIXED ) != (LPVOID)base)
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if (wine_anon_mmap( (LPVOID)base, size, VIRTUAL_GetUnixProt(0), MAP_FIXED ) != (LPVOID)base)
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ERR( "Could not remap pages, expect trouble\n" );
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return VIRTUAL_SetProt( view, base, size, 0 );
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}
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@ -9,6 +9,7 @@
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#include <stdlib.h>
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#include "winbase.h"
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#include "wine/library.h"
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#include "main.h"
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#include "options.h"
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#include "version.h"
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@ -160,7 +161,6 @@ static void do_config( const char *arg )
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static void do_debugmsg( const char *arg )
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{
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extern void wine_dbg_add_option( const char *name, unsigned char set, unsigned char clear );
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static const char * const debug_class_names[__DBCL_COUNT] = { "fixme", "err", "warn", "trace" };
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char *opt, *options = strdup(arg);
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