Ken Thomases : dbghelp: Fix loading of Mach-O load commands for 64-bit binaries.
Alexandre Julliard
julliard at winehq.org
Tue Jul 17 15:52:37 CDT 2018
Module: wine
Branch: master
Commit: 3ff8fa7ed1d28b38703125b0c8c632410e3fd980
URL: https://source.winehq.org/git/wine.git/?a=commit;h=3ff8fa7ed1d28b38703125b0c8c632410e3fd980
Author: Ken Thomases <ken at codeweavers.com>
Date: Mon Jul 16 15:44:36 2018 -0500
dbghelp: Fix loading of Mach-O load commands for 64-bit binaries.
Signed-off-by: Ken Thomases <ken at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/dbghelp/image_private.h | 1 +
dlls/dbghelp/macho_module.c | 5 +++--
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/dlls/dbghelp/image_private.h b/dlls/dbghelp/image_private.h
index 9990850..a29794e 100644
--- a/dlls/dbghelp/image_private.h
+++ b/dlls/dbghelp/image_private.h
@@ -89,6 +89,7 @@ struct image_file_map
#ifdef HAVE_MACH_O_LOADER_H
struct mach_header mach_header;
+ size_t header_size; /* size of real header in file */
const struct load_command* load_commands;
const struct uuid_command* uuid;
diff --git a/dlls/dbghelp/macho_module.c b/dlls/dbghelp/macho_module.c
index 9401dfb..05130b7 100644
--- a/dlls/dbghelp/macho_module.c
+++ b/dlls/dbghelp/macho_module.c
@@ -415,7 +415,7 @@ static const struct load_command* macho_map_load_commands(struct macho_file_map*
if (fmap->load_commands == IMAGE_NO_MAP)
{
fmap->load_commands = (const struct load_command*) macho_map_range(
- fmap, sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds, NULL);
+ fmap, fmap->header_size, fmap->mach_header.sizeofcmds, NULL);
TRACE("Mapped load commands: %p\n", fmap->load_commands);
}
@@ -433,7 +433,7 @@ static void macho_unmap_load_commands(struct macho_file_map* fmap)
{
TRACE("Unmapping load commands: %p\n", fmap->load_commands);
macho_unmap_range(NULL, (const void**)&fmap->load_commands, fmap,
- sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds);
+ fmap->header_size, fmap->mach_header.sizeofcmds);
}
}
@@ -666,6 +666,7 @@ static BOOL macho_map_file(struct process *pcs, const WCHAR *filenameW,
ifm->modtype = DMT_MACHO;
ifm->addr_size = (pcs->is_64bit) ? 64 : 32;
+ fmap->header_size = (pcs->is_64bit) ? sizeof(struct mach_header_64) : sizeof(struct mach_header);
len = WideCharToMultiByte(CP_UNIXCP, 0, filenameW, -1, NULL, 0, NULL, NULL);
if (!(filename = HeapAlloc(GetProcessHeap(), 0, len)))
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