Module: wine Branch: master Commit: 2cef8dbcc29739278037e6409e0a00a4fa8dc0d4 URL: http://source.winehq.org/git/wine.git/?a=commit;h=2cef8dbcc29739278037e6409e...
Author: Alexandre Julliard julliard@winehq.org Date: Tue May 13 12:28:58 2014 +0200
ntdll: Determine the mapping type automatically from the WRITECOPY flag.
---
dlls/ntdll/virtual.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/dlls/ntdll/virtual.c b/dlls/ntdll/virtual.c index 70dea5a..4819d2d 100644 --- a/dlls/ntdll/virtual.c +++ b/dlls/ntdll/virtual.c @@ -854,10 +854,11 @@ done: * The csVirtual section must be held by caller. */ static NTSTATUS map_file_into_view( struct file_view *view, int fd, size_t start, size_t size, - off_t offset, unsigned int vprot, int flags, BOOL removable ) + off_t offset, unsigned int vprot, BOOL removable ) { void *ptr; int prot = VIRTUAL_GetUnixProt( vprot | VPROT_COMMITTED /* make sure it is accessible */ ); + unsigned int flags = MAP_FIXED | ((vprot & VPROT_WRITECOPY) ? MAP_PRIVATE : MAP_SHARED);
assert( start < view->size ); assert( start + size <= view->size ); @@ -872,7 +873,7 @@ static NTSTATUS map_file_into_view( struct file_view *view, int fd, size_t start /* only try mmap if media is not removable (or if we require write access) */ if (!removable || (flags & MAP_SHARED)) { - if (mmap( (char *)view->base + start, size, prot, flags | MAP_FIXED, fd, offset ) != (void *)-1) + if (mmap( (char *)view->base + start, size, prot, flags, fd, offset ) != (void *)-1) goto done;
if ((errno == EPERM) && (prot & PROT_EXEC)) @@ -1094,7 +1095,7 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz if (!st.st_size) goto error; header_size = min( header_size, st.st_size ); if (map_file_into_view( view, fd, 0, header_size, 0, VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY, - MAP_PRIVATE, !dup_mapping ) != STATUS_SUCCESS) goto error; + !dup_mapping ) != STATUS_SUCCESS) goto error; dos = (IMAGE_DOS_HEADER *)ptr; nt = (IMAGE_NT_HEADERS *)(ptr + dos->e_lfanew); header_end = ptr + ROUND_SIZE( 0, header_size ); @@ -1118,8 +1119,8 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz /* unaligned sections, this happens for native subsystem binaries */ /* in that case Windows simply maps in the whole file */
- if (map_file_into_view( view, fd, 0, total_size, 0, VPROT_COMMITTED | VPROT_READ, - MAP_PRIVATE, !dup_mapping ) != STATUS_SUCCESS) goto error; + if (map_file_into_view( view, fd, 0, total_size, 0, VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY, + !dup_mapping ) != STATUS_SUCCESS) goto error;
/* check that all sections are loaded at the right offset */ if (nt->OptionalHeader.FileAlignment != nt->OptionalHeader.SectionAlignment) goto error; @@ -1172,8 +1173,7 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz sec->PointerToRawData, (int)pos, file_size, map_size, sec->Characteristics ); if (map_file_into_view( view, shared_fd, sec->VirtualAddress, map_size, pos, - VPROT_COMMITTED | VPROT_READ | VPROT_WRITE, - MAP_SHARED, FALSE ) != STATUS_SUCCESS) + VPROT_COMMITTED | VPROT_READ | VPROT_WRITE, FALSE ) != STATUS_SUCCESS) { ERR_(module)( "Could not map shared section %.8s\n", sec->Name ); goto error; @@ -1189,8 +1189,7 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz if (end > base) map_file_into_view( view, shared_fd, base, end - base, pos + (base - sec->VirtualAddress), - VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY, - MAP_PRIVATE, FALSE ); + VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY, FALSE ); } pos += map_size; continue; @@ -1212,7 +1211,7 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz end < file_start || map_file_into_view( view, fd, sec->VirtualAddress, file_size, file_start, VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY, - MAP_PRIVATE, !dup_mapping ) != STATUS_SUCCESS) + !dup_mapping ) != STATUS_SUCCESS) { ERR_(module)( "Could not map section %.8s, file probably truncated\n", sec->Name ); goto error; @@ -2627,8 +2626,7 @@ NTSTATUS WINAPI NtMapViewOfSection( HANDLE handle, HANDLE process, PVOID *addr_p TRACE("handle=%p size=%lx offset=%x%08x\n", handle, size, offset.u.HighPart, offset.u.LowPart );
- res = map_file_into_view( view, unix_handle, 0, size, offset.QuadPart, vprot, - (vprot & VPROT_WRITECOPY) ? MAP_PRIVATE : MAP_SHARED, !dup_mapping ); + res = map_file_into_view( view, unix_handle, 0, size, offset.QuadPart, vprot, !dup_mapping ); if (res == STATUS_SUCCESS) { *addr_ptr = view->base;