Re: [Valgrind-users] valgrind "error: -mpreferred-stack-boundary=2 is not between 3 and 12"

[Tom H. <to...@co...>]

On 20/05/18 21:15, John Reiser wrote:

> This is peculiar: "I am working on ... x86_64" but invoking "gcc -m32"
> which requests "generate code for i686".
> Also, if the value is not at least 4 then some generated SSE instructions
> (even on i686) will fault because they demand 16-byte alignment,
> and any call involving a variable number of arguments which includes
> any argument that requires 16-byte alignment will generate incorrect code.
> The best strategy is to omit "-mpreferred-stack-boudnary" entirely.

It's not peculiar really - by default when building on x86_64 valgrind
will try and build both the x86 and x86_64 backends.

Use --enable-only64bit to configure if you want to stop it trying to
build the 32 bit backend.

Tom

-- 
Tom Hughes (to...@co...)
http://compton.nu/