[OE-core] [PATCH] gcc: Backport nios2 r31 fix
Marek Vasut
marex at denx.de
Wed Feb 17 00:29:36 UTC 2016
Backport a fix from GCC mainline, which fixes libpcre 8.38 and expat 2.1.0
build on nios2. The example of the fixed error follows:
| ./nios2-poky-linux-libtool --silent --mode=compile nios2-poky-linux-gcc -mel -mhw-div -mhw-mul --sysroot=/mnt/work/Yocto/build-nios2/tmp/sysroots/10m50 -I../expat-2.1.0/lib -I. -O2 -pipe -g -feliminate-unused-debug-types -Wall -Wmissing-prototypes -Wstrict-prototypes -fexceptions -DHAVE_EXPAT_CONFIG_H -o lib/xmltok.lo -c ../expat-2.1.0/lib/xmltok.c
| {standard input}: Assembler messages:
| {standard input}:4988: Error: r31 cannot be used with jmp; use ret instead
| {standard input}:9703: Error: r31 cannot be used with jmp; use ret instead
| {standard input}:20068: Error: r31 cannot be used with jmp; use ret instead
| {standard input}:24020: Error: r31 cannot be used with jmp; use ret instead
| Makefile:196: recipe for target 'lib/xmltok.lo' failed
| make: *** [lib/xmltok.lo] Error 1
| WARNING: exit code 1 from a shell command.
Signed-off-by: Marek Vasut <marex at denx.de>
---
meta/recipes-devtools/gcc/gcc-5.3.inc | 1 +
.../gcc/gcc-5.3/0051-nios2-use-ret-with-r31.patch | 103 +++++++++++++++++++++
2 files changed, 104 insertions(+)
create mode 100644 meta/recipes-devtools/gcc/gcc-5.3/0051-nios2-use-ret-with-r31.patch
diff --git a/meta/recipes-devtools/gcc/gcc-5.3.inc b/meta/recipes-devtools/gcc/gcc-5.3.inc
index 214af10..0bcb7d2 100644
--- a/meta/recipes-devtools/gcc/gcc-5.3.inc
+++ b/meta/recipes-devtools/gcc/gcc-5.3.inc
@@ -80,6 +80,7 @@ SRC_URI = "\
file://0048-ssp_nonshared.patch \
file://0049-Disable-the-weak-reference-logic-in-gthr.h-for-os-ge.patch \
file://0050-powerpc-pass-secure-plt-to-the-linker.patch \
+ file://0051-nios2-use-ret-with-r31.patch \
"
BACKPORTS = ""
diff --git a/meta/recipes-devtools/gcc/gcc-5.3/0051-nios2-use-ret-with-r31.patch b/meta/recipes-devtools/gcc/gcc-5.3/0051-nios2-use-ret-with-r31.patch
new file mode 100644
index 0000000..f3cb47f
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-5.3/0051-nios2-use-ret-with-r31.patch
@@ -0,0 +1,103 @@
+From 1d67120d95c2c6e0ed4f7357d1cc62887eaba463 Mon Sep 17 00:00:00 2001
+From: sandra <sandra at 138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 12 May 2015 15:57:22 +0000
+Subject: [PATCH] 2015-05-12 Chung-Lin Tang <cltang at codesourcery.com>
+ Sandra Loosemore <sandra at codesourcery.com>
+
+ gcc/
+ * config/nios2/nios2.h (enum reg_class): Add IJMP_REGS enum
+ value.
+ (REG_CLASS_NAMES): Add "IJMP_REGS".
+ (REG_CLASS_CONTENTS): Add new entry for IJMP_REGS.
+ * config/nios2/nios2.md (indirect_jump,*tablejump): Adjust to
+ use new "c" register constraint.
+ * config/nios2/constraint.md (c): New register constraint
+ corresponding to IJMP_REGS.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223082 138bc75d-0d04-0410-961f-82ee72b054a4
+Signed-off-by: Marek Vasut <marex at denx.de>
+Upstream-Status: Backport [ git://gcc.gnu.org/git/gcc.git 1d67120d95c2c6e0ed4f7357d1cc62887eaba463 ]
+---
+ gcc/ChangeLog | 12 ++++++++++++
+ gcc/config/nios2/constraints.md | 3 +++
+ gcc/config/nios2/nios2.h | 11 +++++++----
+ gcc/config/nios2/nios2.md | 4 ++--
+ 4 files changed, 24 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/nios2/constraints.md b/gcc/config/nios2/constraints.md
+index f4bd9f7..735f892 100644
+--- a/gcc/config/nios2/constraints.md
++++ b/gcc/config/nios2/constraints.md
+@@ -39,6 +39,9 @@
+
+ ;; Register constraints
+
++(define_register_constraint "c" "IJMP_REGS"
++ "A register suitable for an indirect jump.")
++
+ (define_register_constraint "j" "SIB_REGS"
+ "A register suitable for an indirect sibcall.")
+
+diff --git a/gcc/config/nios2/nios2.h b/gcc/config/nios2/nios2.h
+index 510ab5f..ac33978 100644
+--- a/gcc/config/nios2/nios2.h
++++ b/gcc/config/nios2/nios2.h
+@@ -173,6 +173,7 @@ enum reg_class
+ {
+ NO_REGS,
+ SIB_REGS,
++ IJMP_REGS,
+ GP_REGS,
+ ALL_REGS,
+ LIM_REG_CLASSES
+@@ -183,6 +184,7 @@ enum reg_class
+ #define REG_CLASS_NAMES \
+ { "NO_REGS", \
+ "SIB_REGS", \
++ "IJMP_REGS", \
+ "GP_REGS", \
+ "ALL_REGS" }
+
+@@ -190,10 +192,11 @@ enum reg_class
+
+ #define REG_CLASS_CONTENTS \
+ { \
+- /* NO_REGS */ { 0, 0}, \
+- /* SIB_REGS */ { 0xfe0c, 0}, \
+- /* GP_REGS */ {~0, 0}, \
+- /* ALL_REGS */ {~0,~0} \
++ /* NO_REGS */ { 0, 0}, \
++ /* SIB_REGS */ { 0xfe0c, 0}, \
++ /* IJMP_REGS */ { 0x7fffffff, 0}, \
++ /* GP_REGS */ {~0, 0}, \
++ /* ALL_REGS */ {~0,~0} \
+ }
+
+
+diff --git a/gcc/config/nios2/nios2.md b/gcc/config/nios2/nios2.md
+index 7b35d269..36ef101 100644
+--- a/gcc/config/nios2/nios2.md
++++ b/gcc/config/nios2/nios2.md
+@@ -697,7 +697,7 @@
+ ; check or adjust for overflow.
+
+ (define_insn "indirect_jump"
+- [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
++ [(set (pc) (match_operand:SI 0 "register_operand" "c"))]
+ ""
+ "jmp\\t%0"
+ [(set_attr "type" "control")])
+@@ -811,7 +811,7 @@
+
+ (define_insn "*tablejump"
+ [(set (pc)
+- (match_operand:SI 0 "register_operand" "r"))
++ (match_operand:SI 0 "register_operand" "c"))
+ (use (label_ref (match_operand 1 "" "")))]
+ ""
+ "jmp\\t%0"
+--
+2.7.0
+
--
2.1.4
More information about the Openembedded-core
mailing list