[src/trunk]: src/external/gpl3/gcc/dist/gcc/config/arm Switch earmv6{,hf}eb f...

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/66828485494d
branches:  trunk
changeset: 946546:66828485494d
user:      rin <rin%NetBSD.org@localhost>
date:      Tue Dec 01 02:39:08 2020 +0000

description:
Switch earmv6{,hf}eb from BE32 (deprecated) to BE8 (new), which enables

- binary compatibility with earmv7{,hf}eb and later, as well as
  COMPAT_NETBSD32 on aarch64eb
- unaligned memory access

whereas compatibility with earmv5{,hf}eb and prior is lost.

As we have never released kernel and userland for earmv6{,hf}eb yet,
this does not causes any compatibility problems.

Discussed on port-arm and tech-toolchain.

diffstat:

 external/gpl3/gcc/dist/gcc/config/arm/netbsd-eabi.h |  2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diffs (12 lines):

diff -r a4726a5f7e40 -r 66828485494d external/gpl3/gcc/dist/gcc/config/arm/netbsd-eabi.h
--- a/external/gpl3/gcc/dist/gcc/config/arm/netbsd-eabi.h       Mon Nov 30 22:26:30 2020 +0000
+++ b/external/gpl3/gcc/dist/gcc/config/arm/netbsd-eabi.h       Tue Dec 01 02:39:08 2020 +0000
@@ -34,8 +34,6 @@
 #undef  TARGET_LINKER_EMULATION
 #if TARGET_BIG_ENDIAN_DEFAULT
 #define TARGET_LINKER_EMULATION TARGET_LINKER_BIG_EMULATION
-#undef BE8_LINK_SPEC
-#define BE8_LINK_SPEC " %{!mlittle-endian:%{march=armv7-a|mcpu=cortex-a5|mcpu=cortex-a8|mcpu=cortex-a9:%{!r:--be8}}}" 
 #else
 #define TARGET_LINKER_EMULATION TARGET_LINKER_LITTLE_EMULATION
 #endif