On Wed, May 14, 2014 at 12:56:54PM +0200, Rainer Orth wrote:
> Georg-Johann Lay <a...@gjlay.de> writes:
>
> > Or what about simply that, which works for me:
> >
> >
> > Index: config/avr/avr.h
> > ===================================================================
> > --- config/avr/avr.h (revision 210276)
> > +++ config/avr/avr.h (working copy)
> > @@ -512,7 +512,11 @@ extern const char *avr_device_to_sp8 (in
> > %{!fenforce-eh-specs:-fno-enforce-eh-specs} \
> > %{!fexceptions:-fno-exceptions}"
> >
> > +#ifdef HAVE_AS_AVR_LINK_RELAX_OPTION
> > +#define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) %{mrelax:-mlink-relax} "
> > +#else
> > #define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) "
> > +#endif
> >
> > #define LINK_SPEC "\
> > %{mrelax:--relax\
>
> Better yet something like
>
> #ifdef HAVE_AS_AVR_LINK_RELAX_OPTION
> #define LINK_RELAX_SPEC "%{mrelax:-mlink-relax} "
> #else
> #define LINK_RELAX_SPEC ""
> #endif
>
> #define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) " LINK_RELAX_SPEC
>
Does this look ok? I don't have commit access, so could someone commit
this please?
Regards
Senthil
2014-05-15 Senthil Kumar Selvaraj <senthil_kumar.selva...@atmel.com>
* config/avr/avr.h: Pass on mlink-relax to assembler.
* configure.ac: Test for mlink-relax assembler support.
* config.in: Regenerate.
* configure: Likewise.
diff --git gcc/config.in gcc/config.in
index c0ba36e..1738301 100644
--- gcc/config.in
+++ gcc/config.in
@@ -575,6 +575,12 @@
#endif
+/* Define if your assembler supports -mlink-relax option. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_AVR_AS_LINK_RELAX_OPTION
+#endif
+
+
/* Define to 1 if you have the `clearerr_unlocked' function. */
#ifndef USED_FOR_TARGET
#undef HAVE_CLEARERR_UNLOCKED
diff --git gcc/config/avr/avr.h gcc/config/avr/avr.h
index 9d34983..c59c54d 100644
--- gcc/config/avr/avr.h
+++ gcc/config/avr/avr.h
@@ -512,8 +512,14 @@ extern const char *avr_device_to_sp8 (int argc, const char
**argv);
%{!fenforce-eh-specs:-fno-enforce-eh-specs} \
%{!fexceptions:-fno-exceptions}"
-#define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) "
-
+#ifdef HAVE_AVR_AS_LINK_RELAX_OPTION
+#define ASM_RELAX_SPEC "%{mrelax:-mlink-relax}"
+#else
+#define ASM_RELAX_SPEC ""
+#endif
+
+#define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) " ASM_RELAX_SPEC
+
#define LINK_SPEC "\
%{mrelax:--relax\
%{mpmem-wrap-around:%{mmcu=at90usb8*:--pmem-wrap-around=8k}\
diff --git gcc/configure gcc/configure
index f4db0a0..2812cdb 100755
--- gcc/configure
+++ gcc/configure
@@ -24014,6 +24014,39 @@ $as_echo "#define HAVE_AS_JSRDIRECT_RELOCS 1"
>>confdefs.h
fi
;;
+ avr-*-*)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for
-mlink-relax option" >&5
+$as_echo_n "checking assembler for -mlink-relax option... " >&6; }
+if test "${gcc_cv_as_avr_relax+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ gcc_cv_as_avr_relax=no
+ if test x$gcc_cv_as != x; then
+ $as_echo '.text' > conftest.s
+ if { ac_try='$gcc_cv_as $gcc_cv_as_flags -mlink-relax -o conftest.o
conftest.s >&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ gcc_cv_as_avr_relax=yes
+ else
+ echo "configure: failed program was" >&5
+ cat conftest.s >&5
+ fi
+ rm -f conftest.o conftest.s
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_avr_relax" >&5
+$as_echo "$gcc_cv_as_avr_relax" >&6; }
+if test $gcc_cv_as_avr_relax = yes; then
+
+$as_echo "#define HAVE_AVR_AS_LINK_RELAX_OPTION 1" >>confdefs.h
+
+fi
+ ;;
+
cris-*-*)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for
-no-mul-bug-abort option" >&5
$as_echo_n "checking assembler for -no-mul-bug-abort option... " >&6; }
diff --git gcc/configure.ac gcc/configure.ac
index 8f17dfb..49a1f3d 100644
--- gcc/configure.ac
+++ gcc/configure.ac
@@ -3510,6 +3510,13 @@ case "$target" in
[Define if your assembler supports the lituse_jsrdirect relocation.])])
;;
+ avr-*-*)
+ gcc_GAS_CHECK_FEATURE([-mlink-relax option], gcc_cv_as_avr_relax,,
+ [-mlink-relax], [.text],,
+ [AC_DEFINE(HAVE_AVR_AS_LINK_RELAX_OPTION, 1,
+ [Define if your assembler supports -mlink-relax option.])])
+ ;;
+
cris-*-*)
gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
gcc_cv_as_cris_no_mul_bug,[2,15,91],
