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From 0e1b74b6ffbeadab5351d6a426e530886e00aa69 Mon Sep 17 00:00:00 2001
From: Lai Wei-Chih <Robert.Lai@mediatek.com>
Date: Mon, 6 Apr 2015 13:59:54 +0800
Subject: [PATCH] Modify LINK_SPEC to pass --fix-cortex-a53-843419 as default.
For NDK toolchains, always enable the fix of cortex-a53 erratum 843419.
Use -mno-fix-cortex-a53-843419 to disable this workaround.
Change-Id: I69b8a71113abb172138bf0986697a94e42a5117e
---
gcc-4.9/gcc/config/aarch64/aarch64-elf-raw.h | 6 +++++-
gcc-4.9/gcc/config/aarch64/aarch64-linux.h | 7 ++++++-
gcc-4.9/gcc/config/aarch64/aarch64.c | 5 +++++
gcc-4.9/gcc/config/aarch64/aarch64.opt | 4 ++++
4 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/gcc-4.9/gcc/config/aarch64/aarch64-elf-raw.h b/gcc-4.9/gcc/config/aarch64/aarch64-elf-raw.h
index eafdd55..99611c5 100644
--- a/gcc-4.9/gcc/config/aarch64/aarch64-elf-raw.h
+++ b/gcc-4.9/gcc/config/aarch64/aarch64-elf-raw.h
@@ -33,10 +33,14 @@
" %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}"
#endif
+#define CA53_ERR_843419_SPEC \
+ " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}"
+
#ifndef LINK_SPEC
#define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X \
-maarch64elf%{mabi=ilp32*:32}%{mbig-endian:b}" \
- CA53_ERR_835769_SPEC
+ CA53_ERR_835769_SPEC \
+ CA53_ERR_843419_SPEC
#endif
#endif /* GCC_AARCH64_ELF_RAW_H */
diff --git a/gcc-4.9/gcc/config/aarch64/aarch64-linux.h b/gcc-4.9/gcc/config/aarch64/aarch64-linux.h
index b77becd..7b77c42 100644
--- a/gcc-4.9/gcc/config/aarch64/aarch64-linux.h
+++ b/gcc-4.9/gcc/config/aarch64/aarch64-linux.h
@@ -48,7 +48,12 @@
" %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}"
#endif
-#define LINUX_TARGET_LINK_SPEC LINUX_TARGET_LINK_SPEC0 CA53_ERR_835769_SPEC
+#define CA53_ERR_843419_SPEC \
+ " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}"
+
+#define LINUX_TARGET_LINK_SPEC LINUX_TARGET_LINK_SPEC0 \
+ CA53_ERR_835769_SPEC \
+ CA53_ERR_843419_SPEC
#define LINK_SPEC LINUX_TARGET_LINK_SPEC
diff --git a/gcc-4.9/gcc/config/aarch64/aarch64.c b/gcc-4.9/gcc/config/aarch64/aarch64.c
index 2ff6c7c..0efb7e4 100644
--- a/gcc-4.9/gcc/config/aarch64/aarch64.c
+++ b/gcc-4.9/gcc/config/aarch64/aarch64.c
@@ -5265,6 +5265,11 @@ aarch64_override_options (void)
#endif
}
+ if (aarch64_fix_a53_err843419 == 2)
+ {
+ aarch64_fix_a53_err843419 = 1;
+ }
+
aarch64_override_options_after_change ();
if (TARGET_ANDROID)
diff --git a/gcc-4.9/gcc/config/aarch64/aarch64.opt b/gcc-4.9/gcc/config/aarch64/aarch64.opt
index fc0307e..ca27f50 100644
--- a/gcc-4.9/gcc/config/aarch64/aarch64.opt
+++ b/gcc-4.9/gcc/config/aarch64/aarch64.opt
@@ -71,6 +71,10 @@ mfix-cortex-a53-835769
Target Report Var(aarch64_fix_a53_err835769) Init(2)
Workaround for ARM Cortex-A53 Erratum number 835769
+mfix-cortex-a53-843419
+Target Report Var(aarch64_fix_a53_err843419) Init(2)
+Workaround for ARM Cortex-A53 Erratum number 843419
+
mlittle-endian
Target Report RejectNegative InverseMask(BIG_END)
Assume target CPU is configured as little endian
--
1.9.1
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