Hi Jocke, Joakim Tjernlund wrote on Wednesday, March 10, 2010 5:36 PM: >> Andrew Dyer wrote on Wednesday, March 10, 2010 4:50 PM: [SNIP] >> >> Hm, on the wikipedia article for the 'variable length arrays' (VLA) I >> read, that the GNU C compiler always uses the stack for this type of >> variables. So I think, if the stack is working for all other local >> variables, it should not be an memory layout problem. >> >> Eventually the following might be interesting. I have tried to make >> the VLA much bigger, to eliminate 'normal' buffer overrun problems: >> >> char filename[dirent.namelen + 1 + 2048] >> >> But this leads to the same result, U-Boot dies. With an fixed length >> array of comparable length it works: >> >> char filename[2048] >> >> Both (local) variables should end up on the stack. > > Try alloca to see if stack allocs works at all in your toolchain.
I didn't find alloca(), so I tried it with __builtin_alloca(). The result is the same as with variable length array - u-boot dies during the ext2ls command call. Does this mean, my toolchain is broken? I use ELDK4.2 for ARM. Regards, Martin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
