Eric Pouech : dbghelp: Use 'wine' as loader on multi-arch configuration.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: aabb4e12bc3d3a8f0b5b8d301867cb4d7e039729
URL:    https://gitlab.winehq.org/wine/wine/-/commit/aabb4e12bc3d3a8f0b5b8d301867cb4...

Author: Eric Pouech <eric.pouech(a)gmail.com>
Date:   Wed Mar  8 11:43:22 2023 +0100

dbghelp: Use 'wine' as loader on multi-arch configuration.

Signed-off-by: Eric Pouech <eric.pouech(a)gmail.com>

---

 dlls/dbghelp/module.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/dlls/dbghelp/module.c b/dlls/dbghelp/module.c
index ad8ec22fe32..8c7639dba38 100644
--- a/dlls/dbghelp/module.c
+++ b/dlls/dbghelp/module.c
@@ -134,7 +134,7 @@ WCHAR *get_wine_loader_name(struct process *pcs)
     unsigned len;
 
     name = process_getenv(pcs, L"WINELOADER");
-    if (!name) name = pcs->is_64bit ? L"wine64" : L"wine";
+    if (!name) name = pcs->is_system_64bit ? L"wine64" : L"wine";
     len = lstrlenW(name);
 
     /* WINELOADER isn't properly updated in Wow64 process calling inside Windows env block
@@ -145,9 +145,14 @@ WCHAR *get_wine_loader_name(struct process *pcs)
     if (altname)
     {
         memcpy(altname, name, len * sizeof(WCHAR));
-        if (pcs->is_64bit && len >= 2 && memcmp(name + len - 2, L"64", 2 * sizeof(WCHAR)) != 0)
+        if (pcs->is_system_64bit && len >= 2 && memcmp(name + len - 2, L"64", 2 * sizeof(WCHAR)) != 0)
+        {
             lstrcpyW(altname + len, L"64");
-        else if (!pcs->is_64bit && len >= 2 && !memcmp(name + len - 2, L"64", 2 * sizeof(WCHAR)))
+            /* in multi-arch wow configuration, wine64 doesn't exist */
+            if (GetFileAttributesW(altname) == INVALID_FILE_ATTRIBUTES)
+                altname[len] = L'\0';
+        }
+        else if (!pcs->is_system_64bit && len >= 2 && !memcmp(name + len - 2, L"64", 2 * sizeof(WCHAR)))
             altname[len - 2] = '\0';
         else
             altname[len] = '\0';