When all the codepaths using manually set .arch/.fpu code is
behind runtime detection, the elf attributes should be suppressed.
This allows tools to know that the final built binary doesn't
strictly require these extensions.
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit
dcae2e32f7d8a1ca5fb8c1e4aa81313be854dd73
and
b77e335e441040a40fc6156b8e4a134745d10233)
Signed-off-by: Martin Storsjö <martin@martin.st>
TOOLCHAIN_FEATURES="
as_dn_directive
as_func
+ as_object_arch
asm_mod_q
attribute_may_alias
attribute_packed
.unreq ra
EOF
+ # llvm's integrated assembler supports .object_arch from llvm 3.5
+ [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
+.object_arch armv4
+EOF
+
[ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
elif enabled mips; then
#elif HAVE_ARMV5TE
.arch armv5te
#endif
+#if HAVE_AS_OBJECT_ARCH
+ELF .object_arch armv4
+#endif
#if HAVE_NEON
.fpu neon
+ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
+ELF .eabi_attribute 12, 0 @ suppress Tag_Advanced_SIMD_arch
#elif HAVE_VFP
.fpu vfp
+ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
#endif
.syntax unified