Commit 4581cbcd authored by Blue Swirl's avatar Blue Swirl
Browse files

i386: avoid a write only variable 



Compiling with GCC 4.6.0 20100925 produced warnings:
/src/qemu/target-i386/op_helper.c: In function 'switch_tss':
/src/qemu/target-i386/op_helper.c:283:53: error: variable 'new_trap' set but not used [-Werror=unused-but-set-variable]

Fix by adding a dummy cast so that the variable is not unused. Add also
pointer to docs.

Signed-off-by: default avatarBlue Swirl <blauwirbel@gmail.com>
parent 2ded6ad7

target-i386/op_helper.c

+4 −0
Original line number Diff line number Diff line
@@ -349,6 +349,10 @@ static void switch_tss(int tss_selector, 
        new_segs[R_GS] = 0;

        new_trap = 0;

    }

    /* XXX: avoid a compiler warning, see

     http://support.amd.com/us/Processor_TechDocs/24593.pdf

     chapters 12.2.5 and 13.2.4 on how to implement TSS Trap bit */

    (void)new_trap;



    /* NOTE: we must avoid memory exceptions during the task switch,

       so we make dummy accesses before */