From 4f19d72ca94418431e068cfd4ffb96ed9b289f6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <adraszik@tycoint.com>
Date: Wed, 24 Aug 2016 17:34:59 +0100
Subject: [PATCH 3/4] smart_ptr: mips assembly doesn't compile in mips16e mode
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gcc.compile.c++ <builddir>/boost/bin.v2/libs/date_time/build/gcc-4.3.1/release/threading-multi/gregorian/greg_month.o

    "mipsel-poky-linux-musl-g++" "-mel" "-mabi=32" "-msoft-float" "-march=mips32r2" "-mips16" "-minterlink-compressed" "-mtune=24kec" "-mdsp" "-Wl,-O1" "-Wl,--as-needed" "-fstack-protector-strong" "-Wl,-z,relro,-z,now" "--sysroot=<sysroot>"  -ftemplate-depth-128 -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=<srcdir>=/usr/src/debug/boost/1.61.0-r0 -fdebug-prefix-map=<sysroot_host>= -fdebug-prefix-map=<sysroot>= -fstack-protector-strong -pie -fpie -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security -fvisibility-inlines-hidden -O3 -finline-functions -Wno-inline -Wall -pthread -fPIC  -DBOOST_ALL_DYN_LINK=1 -DBOOST_ALL_NO_LIB=1 -DDATE_TIME_INLINE -DNDEBUG  -I"." -c -o "<builddir>/boost/bin.v2/libs/date_time/build/gcc-4.3.1/release/threading-multi/gregorian/greg_month.o" "libs/date_time/src/gregorian/greg_month.cpp"

{standard input}: Assembler messages:
{standard input}:17603: Warning: the `dsp' extension requires MIPS32 revision 2 or greater
{standard input}:17604: Error: unrecognized opcode `ll $3,4($16)'
{standard input}:17606: Error: unrecognized opcode `sc $2,4($16)'
{standard input}:17734: Error: unrecognized opcode `ll $3,8($16)'
{standard input}:17736: Error: unrecognized opcode `sc $2,8($16)'
{standard input}:18084: Error: unrecognized opcode `ll $3,4($4)'
{standard input}:18086: Error: unrecognized opcode `sc $2,4($4)'
{standard input}:18318: Error: unrecognized opcode `ll $3,8($4)'
{standard input}:18320: Error: unrecognized opcode `sc $2,8($4)'
{standard input}:19921: Error: unrecognized opcode `ll $3,4($2)'
{standard input}:19923: Error: unrecognized opcode `sc $3,4($2)'
{standard input}:20199: Error: unrecognized opcode `ll $4,4($16)'
{standard input}:20201: Error: unrecognized opcode `sc $2,4($16)'
{standard input}:23392: Error: unrecognized opcode `ll $4,8($16)'
{standard input}:23394: Error: unrecognized opcode `sc $2,8($16)'
...failed updating 1 target...

boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp
contains hand-written MIPS assembly, which is not compatible
with the MIPS16e instruction set.

By not using this file in MIPS16e mode, we fallback to using
g++ 4.1+ __sync intrinsics (__sync_fetch_and_add() and
__sync_val_compare_and_swap()) which are working fine.

Signed-off-by: André Draszik <adraszik@tycoint.com>
---
Upstream-Status: Backport https://svn.boost.org/trac/boost/ticket/12418
 boost/smart_ptr/detail/sp_counted_base.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/boost/smart_ptr/detail/sp_counted_base.hpp b/boost/smart_ptr/detail/sp_counted_base.hpp
index 0addf07..0995ca8 100644
--- a/boost/smart_ptr/detail/sp_counted_base.hpp
+++ b/boost/smart_ptr/detail/sp_counted_base.hpp
@@ -65,7 +65,7 @@
 #elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) || defined( __ppc ) ) && !defined(__PATHSCALE__) && !defined( _AIX )
 # include <boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp>
 
-#elif defined( __GNUC__ ) && ( defined( __mips__ ) || defined( _mips ) ) && !defined(__PATHSCALE__)
+#elif defined( __GNUC__ ) && ( defined( __mips__ ) || defined( _mips ) ) && !defined(__PATHSCALE__) && !defined( __mips16 )
 # include <boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp>
 
 #elif defined( BOOST_SP_HAS_SYNC )
-- 
2.9.3