Fix problem using alloca function, executable crashed even with a exception handler function, when try to allocate INT_MAX. Patch provided by Jason Hood in private e-mail, when I ask to him for help. He say: Feel free to pass it on to the mailing list.

2014-07-10 00:37:20 -04:00
parent 89000c18dc
commit 8257829623
3 changed files with 6 additions and 6 deletions
--- a/lib/alloca86-bt.S
+++ b/lib/alloca86-bt.S
@ -14,10 +14,10 @@ __bound_alloca:
 #ifdef TCC_TARGET_PE
 p4:
    cmp     $4096,%eax
-    jle     p5
+    jb      p5
+    test    %eax,-4096(%esp)
    sub     $4096,%esp
    sub     $4096,%eax
-    test    %eax,(%esp)
    jmp p4

 p5: