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| author | Eli Zaretskii <eliz@gnu.org> | 2021-09-11 09:56:27 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2021-09-11 09:56:27 +0300 |
| commit | f98700af80b37a43669955ec399ac300c3979384 (patch) | |
| tree | 417fb6bf2750dc90e83c94055628b11ed2eae24c | |
| parent | d37dcfa30ff20aa2d5b0d6c2e43ef5930e72e375 (diff) | |
| download | emacs-f98700af80b37a43669955ec399ac300c3979384.tar.gz emacs-f98700af80b37a43669955ec399ac300c3979384.tar.bz2 emacs-f98700af80b37a43669955ec399ac300c3979384.zip | |
Fix restoring from pdumper file on MS-Windows 9X
* src/pdumper.c (dump_map_file_w32): Use PAGE_WRITECOPY flag when
calling CreateFileMapping for DUMP_MEMORY_ACCESS_READWRITE access,
as that is required by Windows 9X. (Bug#50453)
| -rw-r--r-- | src/pdumper.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/pdumper.c b/src/pdumper.c index 7730ea3d061..2291fced5d7 100644 --- a/src/pdumper.c +++ b/src/pdumper.c @@ -4537,15 +4537,28 @@ dump_map_file_w32 (void *base, int fd, off_t offset, size_t size, uint32_t offset_low = (uint32_t) (full_offset & 0xffffffff); int error; + DWORD protect; DWORD map_access; file = (HANDLE) _get_osfhandle (fd); if (file == INVALID_HANDLE_VALUE) goto out; + switch (protection) + { + case DUMP_MEMORY_ACCESS_READWRITE: + protect = PAGE_WRITECOPY; /* for Windows 9X */ + break; + default: + case DUMP_MEMORY_ACCESS_NONE: + case DUMP_MEMORY_ACCESS_READ: + protect = PAGE_READONLY; + break; + } + section = CreateFileMapping (file, /*lpAttributes=*/NULL, - PAGE_READONLY, + protect, /*dwMaximumSizeHigh=*/0, /*dwMaximumSizeLow=*/0, /*lpName=*/NULL); |