[PATCH 3/4] kernel32: On process entry store PEB address in %ebx.

[Dmitry Timoshkov]

8k demo custom PE loader depends on this.

Signed-off-by: Dmitry Timoshkov <dmitry at baikal.ru>
---
 dlls/kernel32/process.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index 6f704c521b..da4cafd343 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -94,12 +94,19 @@ __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")
+                    "pushl %ebx\n\t"
+                    __ASM_CFI(".cfi_rel_offset %ebx,-4\n\t")
+                    "subl $12,%esp\n\t"
                     "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"
+                    "movl 8(%ebp),%ebx\n\t"
                     "call *12(%ebp)\n\t"
-                    "leave\n\t"
+                    "leal -4(%ebp),%esp\n\t"
+                    "popl %ebx\n\t"
+                    __ASM_CFI(".cfi_same_value %ebx\n\t")
+                    "popl %ebp\n\t"
                     __ASM_CFI(".cfi_def_cfa %esp,4\n\t")
                     __ASM_CFI(".cfi_same_value %ebp\n\t")
                     "ret" )
-- 
2.26.2