kernel32: Fill stack with meaningful values in call_process_entry mis-align workaround.

Signed-off-by: André Hentschel <nerv@dawncrow.de> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

kernel32: Fill stack with meaningful values in call_process_entry mis-align workaround.
61d92d13 · Sebastian Lackner · Alexandre Julliard · 3e9ce1c2 · 61d92d13
Commit 61d92d13 authored Jul 08, 2018 by Sebastian Lackner Committed by Alexandre Julliard Jul 09, 2018
Hide whitespace changes
Inline Side-by-side

Showing with 3 additions and 1 deletion

process.c dlls/kernel32/process.c +3 -1

No files found.
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -1042,7 +1042,9 @@ __ASM_GLOBAL_FUNC( call_process_entry,
                    __ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
                    "movl %esp,%ebp\n\t"
                    __ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
-                    "subl $12,%esp\n\t"  /* deliberately mis-align the stack by 8, Doom 3 needs this */
+                    "pushl 4(%ebp)\n\t"  /* deliberately mis-align the stack by 8, Doom 3 needs this */
+                    "pushl 4(%ebp)\n\t"  /* Driller expects readable address at this offset */
+                    "pushl 4(%ebp)\n\t"
                    "pushl 8(%ebp)\n\t"
                    "call *12(%ebp)\n\t"
                    "leave\n\t"