On Fri, 2016-08-05 15:43:02 +0200, Martin Liška <mliska@suse.cz> wrote:
[...]
> Great, attaching install candidate.

> >From 0b3ac8636ef34b02e301f22c86dde0602f9969ef Mon Sep 17 00:00:00 2001
> From: marxin <mliska@suse.cz>
> Date: Thu, 28 Jul 2016 14:32:47 +0200
> Subject: [PATCH 1/4] Cherry-pick fprofile-generate-atomic from google/gcc-4_9
>  branch
> 
> gcc/ChangeLog:
> 
> 2016-08-05  Martin Liska  <mliska@suse.cz>
> 
> 	Cherry picked (and modified) from google-4_7 branch
> 	2012-12-26  Rong Xu  <xur@google.com>
> 	* common.opt (fprofile-update): Add new flag.
> 	* coretypes.h: Define enum profile_update.
> 	* doc/invoke.texi: Document -fprofile-update.
> 	* gcov-io.h: Declare GCOV_TYPE_ATOMIC_FETCH_ADD and
> 	GCOV_TYPE_ATOMIC_FETCH_ADD_FN.
> 	* tree-profile.c (gimple_init_edge_profiler): Generate
> 	also atomic profiler update.
> 	(gimple_gen_edge_profiler): Likewise.
[...]
> --- a/gcc/gcov-io.h
> +++ b/gcc/gcov-io.h
> @@ -164,6 +164,14 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
>  #ifndef GCC_GCOV_IO_H
>  #define GCC_GCOV_IO_H
>  
> +#if LONG_LONG_TYPE_SIZE > 32
> +#define GCOV_TYPE_ATOMIC_FETCH_ADD_FN __atomic_fetch_add_8
> +#define GCOV_TYPE_ATOMIC_FETCH_ADD BUILT_IN_ATOMIC_FETCH_ADD_8
> +#else
> +#define GCOV_TYPE_ATOMIC_FETCH_ADD_FN __atomic_fetch_add_4
> +#define GCOV_TYPE_ATOMIC_FETCH_ADD BUILT_IN_ATOMIC_FETCH_ADD_4
> +#endif
> +
>  #ifndef IN_LIBGCOV
>  /* About the host */
>  

This doesn't work for AVR since their LONG_LONG_TYPE_SIZE depents on
target flags (see eg. build
http://toolchain.lug-owl.de/buildbot/show_build_details.php?id=602648)



g++ -fno-PIE -c   -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE   -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H -I. -I. -I/home/jbglaw/repos/gcc/gcc -I/home/jbglaw/repos/gcc/gcc/. -I/home/jbglaw/repos/gcc/gcc/../include -I/home/jbglaw/repos/gcc/gcc/../libcpp/include  -I/home/jbglaw/repos/gcc/gcc/../libdecnumber -I/home/jbglaw/repos/gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I/home/jbglaw/repos/gcc/gcc/../libbacktrace   -o auto-profile.o -MT auto-profile.o -MMD -MP -MF ./.deps/auto-profile.TPo /home/jbglaw/repos/gcc/gcc/auto-profile.c
In file included from ./tm.h:19:0,
                 from /home/jbglaw/repos/gcc/gcc/backend.h:28,
                 from /home/jbglaw/repos/gcc/gcc/auto-profile.c:26:
./options.h:261:36: error: token "." is not valid in preprocessor expressions
 #define target_flags global_options.x_target_flags
                                    ^
./options.h:5153:23: note: in expansion of macro ‘target_flags’
 #define TARGET_INT8 ((target_flags & MASK_INT8) != 0)
                       ^
/home/jbglaw/repos/gcc/gcc/config/avr/avr.h:138:24: note: in expansion of macro ‘TARGET_INT8’
 #define INT_TYPE_SIZE (TARGET_INT8 ? 8 : 16)
                        ^
/home/jbglaw/repos/gcc/gcc/config/avr/avr.h:141:30: note: in expansion of macro ‘INT_TYPE_SIZE’
 #define LONG_LONG_TYPE_SIZE (INT_TYPE_SIZE == 8 ? 32 : 64)
                              ^
/home/jbglaw/repos/gcc/gcc/gcov-io.h:167:5: note: in expansion of macro ‘LONG_LONG_TYPE_SIZE’
 #if LONG_LONG_TYPE_SIZE > 32
     ^
Makefile:1096: recipe for target 'auto-profile.o' failed
make[1]: *** [auto-profile.o] Error 1
make[1]: Leaving directory '/home/jbglaw/build/avr/build-gcc/gcc'


MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
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