Bad gas syntax .if directive parsing
Reported by Zhe Fang | October 7th, 2011 @ 02:49 AM
I tried to use yasm to compile something contains assembly files and seems heavily depends on gas ver. 2+, failed with segmentation fault. Traced a little:
The cause is in <eval_expr>, line 481 @ gas-preproc.c, expr = evaluate(...) leaves a zero in expr, and thus yasm_expr_get_intnum(&expr, 0) operating on expr will be trapped.
Also found a test-case, test.S file with just one line:
.if 1+1==2;
Compile with yasm -p gas test.S will cause the problem.
Tested with latest HEAD.
No comments found
Please Sign in or create a free account to add a new ticket.
With your very own profile, you can contribute to projects, track your activity, watch tickets, receive and update tickets through your email and much more.
Create new ticket
Create your profile
Help contribute to this project by taking a few moments to create your personal profile. Create your profile »
The Yasm Modular Assembler Project