FS#22376 : Simple flex program. Segmentation fault. GCC or GLIBC bug?

FS#22376 - Simple flex program. Segmentation fault. GCC or GLIBC bug?

Attached to Project: Arch Linux
Opened by Strephil (strephil) - Monday, 10 January 2011, 08:25 GMT
Last edited by Jan de Groot (JGC) - Monday, 10 January 2011, 09:16 GMT

Task Type	Bug Report
Category	Packages: Core
Status	Closed
Assigned To	No-one
Architecture	All
Severity	High
Priority	Normal
Reported Version
Due in Version	Undecided
Due Date	Undecided
Percent Complete
Votes	1 Alex (muu) (2011-01-10)
Private	No

Details

Description:

Segmentation fault of very simple flex program. I think there is bug in gcc or in glibc. I think this is not bug in flex, because I could not reproduce this bug on OpenBSD with the same lex.yy.c.

Additional info:

flex 2.5.35
gcc (GCC) 4.5.2
glibc 2.12.2-1

Steps to reproduce:

$ flex evil.l
$ gcc lex.yy.c
$ cat evil_file | ./a.out
Segmentation fault