ccache on amd64

Brian brian at
Thu Sep 25 19:26:55 UTC 2008

> Ok, cracked it. ccache will dump core, if the argument list >255 arguments, 
> most likely because the page size is 2048 bytes, but I'm guessing here. What 
> happens in x_realloc is that it wants to copy the 2048+8 from the old pointer 
> to the new, yet the old pointer is only 2040 bytes big.
> I think it goes ok, till 2048, because 2048 is allocated regardless. You won't 
> see this on 32-bits, because you don't hit this size as the pointer size is 
> only 4 bytes. Most likely, you will hit this bug with argument list >510 
> arguments.
> The patch inlined below my sig will fix the problem. I'll file a PR so that 
> ahze@ can fix it properly. Save it 
> as /usr/ports/devel/ccache/files/patch-args.c and reinstall ccache.
here are my unfortunate results

[root at amd /usr/ports/devel/ccache]# make
===>  Patching for ccache-2.4_7
===>  Applying FreeBSD patches for ccache-2.4_7
patch: **** malformed patch at line 9: sizeof(char *));
=> Patch patch-args.c failed to apply cleanly.
*** Error code 1

Stop in /usr/ports/devel/ccache.

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