ARM hard-float ABI: add ldconfig flag value

[Steve McIntyre <steve dot mcintyre at linaro dot org>]

Hi,

I'm back to working on some of the HF ABI issues that have been raised
in the past [1]; sorry for the long delay. As a first part, here's a
trivial patch to add a flag value for HF ABI libraries in ldconfig and
the cache:



diff --git a/sysdeps/generic/ldconfig.h b/sysdeps/generic/ldconfig.h
index ef3f4b9..1cffdc6 100644
--- a/sysdeps/generic/ldconfig.h
+++ b/sysdeps/generic/ldconfig.h
@@ -34,6 +34,7 @@
 #define FLAG_MIPS64_LIBN32     0x0600
 #define FLAG_MIPS64_LIBN64     0x0700
 #define FLAG_X8664_LIBX32      0x0800
+#define FLAG_ARM_HFABI         0x0900
 
 /* Name of auxiliary cache.  */
 #define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache"


I'm discussing a possible use/implementation of the PT_ARM_ARCHEXT
segment with folks inside ARM at the moment, as a replacement for
checking the ARM-specific build attributes that people didn't like
back then. In advance of that, I'd like to stake a claim for a flag
value. I'm guessing that the new ARM AArch64 architecture will need
one too, but I'll leave that for the team to ask about separately when
they're ready.

[1] http://www.eglibc.org/archives/patches/msg01017.html

Cheers,
-- 
Steve McIntyre                                steve.mcintyre@linaro.org
<http://www.linaro.org/> Linaro.org | Open source software for ARM SoCs