openwrtv3/toolchain/gcc/patches/arc-2016.09-release/840-armv4_pass_fix-v4bx_to_ld.patch
Alexey Brodkin 34e8393019 toolchain/arc: update to the most recent release arc-2016.09
arc-2016.09 is the most recent toolchain for ARC cores and
it is based on top of upstream Binutils 2.27 and GCC 6.2.1.

With updated major version of GCC we copied all GCC 6.x patches
for ARC as well as Bintils 2.27 patches.

Note that toochain sports ARCv4 ABI and so must be used
with 4.8+ Linux kernels. Even though it will build v4.4 kernel
perfectly fine on attempt to run user-space apps they won't
work with older kernel. That said previuosly sent RFC patches with
Linux kernel update are required:
 [1] https://patchwork.ozlabs.org/patch/726686/
 [2] https://patchwork.ozlabs.org/patch/726687/

Signed-off-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
2017-05-02 15:17:30 +02:00

19 lines
778 B
Diff

--- a/gcc/config/arm/linux-eabi.h
+++ b/gcc/config/arm/linux-eabi.h
@@ -94,10 +94,15 @@
#define MUSL_DYNAMIC_LINKER \
"/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+/* For armv4 we pass --fix-v4bx to linker to support EABI */
+#undef TARGET_FIX_V4BX_SPEC
+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
+ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
+
/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
use the GNU/Linux version, not the generic BPABI version. */
#undef LINK_SPEC
-#define LINK_SPEC EABI_LINK_SPEC \
+#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC \
LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)