On Fri, Oct 30, 2020 at 01:21:34PM -0400, Michael Meissner wrote:
> David reminded me that not all targets support GLIBC. This patch should fix
> my
> previous committed patch not to use TARGET_GLIBC_MAJOR or TARGET_GLIBC_MINOR
> unless they are defined.
> + This support is only in little endian GLIBC 2.32 or newer. */
> +static bool
> +glibc_supports_ieee_128bit (void)
> +{
> +#if defined (OPTION_GLIBC) \
> + && defined (TARGET_GLIBC_MAJOR) \
> + && defined (TARGET_GLIBC_MINOR)
> +
> + if (OPTION_GLIBC
> + && !BYTES_BIG_ENDIAN
> + && DEFAULT_ABI == ABI_ELFv2
> + && ((TARGET_GLIBC_MAJOR * 1000) + TARGET_GLIBC_MINOR) >= 2032)
> + return true;
> +#endif /* GLIBC provided. */
> +
> + return false;
> +}
> +
So this makes the compiler behave differently based on what the libc
used at build time was (including its version). Can't we do better? :-(
Segher
