[Tinycc-devel] git rev 3ad64ff breaks tcc

[Roy Tam]

Hi all,

tcc rev 3ad64ff segfaults in strlen().

/d/tinycc$ gdb tcc.exe
GNU gdb (GDB) 7.4
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This GDB was configured as "i686-pc-mingw32".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from d:\tinycc\tcc.exe...done.
(gdb) r
Starting program: d:\tinycc\tcc.exe
[New Thread 536.0xfb0]

Program received signal SIGSEGV, Segmentation fault.
0x77c178ac in strlen () from C:\WINDOWS\system32\msvcrt.dll
(gdb) bt
#0  0x77c178ac in strlen () from C:\WINDOWS\system32\msvcrt.dll
#1  0x00402f0f in tcc_define_symbol (address@hidden,
    address@hidden "__STDC_HOSTED__",
    address@hidden <Address 0x1 out of bounds>) at libtcc.c:829
#2  0x00403c5e in tcc_new () at libtcc.c:927
#3  0x004257c6 in main (argc=1, argv=0x3e3fc0) at tcc.c:251

Patch:

diff --git a/libtcc.c b/libtcc.c
index c500e45..1fdee49 100644
--- a/libtcc.c
+++ b/libtcc.c
@@ -924,7 +924,7 @@ LIBTCCAPI TCCState *tcc_new(void)
     /* standard defines */
     tcc_define_symbol(s, "__STDC__", NULL);
     tcc_define_symbol(s, "__STDC_VERSION__", "199901L");
-    tcc_define_symbol(s, "__STDC_HOSTED__", 1);
+    tcc_define_symbol(s, "__STDC_HOSTED__", "1");

     /* target defines */
 #if defined(TCC_TARGET_I386)