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authorThomas Doerfler <thomas.doerfler@embedded-brains.de>2011-11-04 15:22:06 +0000
committerJoel Sherrill <joel@gcc.gnu.org>2011-11-04 15:22:06 +0000
commit7959812782705b0522b01f9873f48afd4fa53bc3 (patch)
tree541eafc770822ca1771f345c81f37a7f827cbb95
parent288f28c87e097c42b8c10e8d73cd1fbf75942412 (diff)
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re PR target/50980 (arm-rtems multilib not matching for -mfpu=vfp -mfloat-abi=soft)
2011-11-04 Thomas Doerfler <thomas.doerfler@embedded-brains.de> PR target/50980 * config/arm/rtems-elf.h, config/arm/t-rtems: Add optional support for VFP floating point model. From-SVN: r180959
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/config/arm/rtems-elf.h2
-rw-r--r--gcc/config/arm/t-rtems41
3 files changed, 45 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9c1d499..85081ed 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-11-04 Thomas Doerfler <thomas.doerfler@embedded-brains.de>
+
+ PR target/50989
+ * config/arm/rtems-elf.h, config/arm/t-rtems: Add optional
+ support for VFP floating point model.
+
2011-11-04 Tristan Gingold <gingold@adacore.com>
* config/alpha/vms.h (ASM_OUTPUT_DEF): Do not switch section.
diff --git a/gcc/config/arm/rtems-elf.h b/gcc/config/arm/rtems-elf.h
index 8d5a1d7..d9d24a7 100644
--- a/gcc/config/arm/rtems-elf.h
+++ b/gcc/config/arm/rtems-elf.h
@@ -35,7 +35,7 @@
*/
#undef SUBTARGET_EXTRA_ASM_SPEC
#define SUBTARGET_EXTRA_ASM_SPEC "\
- %{!mfloat-abi=hard: %{!mfloat-abi=soft:-mfpu=softfpa}}"
+ %{!mfloat-abi=hard: %{!mfpu=vfp: %{!mfloat-abi=soft:-mfpu=softfpa}}}"
/*
* The default includes --start-group and --end-group which conflicts
diff --git a/gcc/config/arm/t-rtems b/gcc/config/arm/t-rtems
index f12387f..5eff411 100644
--- a/gcc/config/arm/t-rtems
+++ b/gcc/config/arm/t-rtems
@@ -5,6 +5,41 @@ MULTILIB_DIRNAMES = arm thumb
MULTILIB_EXCEPTIONS =
MULTILIB_MATCHES = marm=mno-thumb
-MULTILIB_OPTIONS += mfloat-abi=soft/mfloat-abi=hard
-MULTILIB_DIRNAMES += soft fpu
-MULTILIB_EXCEPTIONS += *mthumb/*mfloat-abi=hard*
+MULTILIB_OPTIONS += mfloat-abi=hard/mfloat-abi=softfp
+MULTILIB_DIRNAMES += fpu softfp
+MULTILIB_EXCEPTIONS += *mthumb*/*mfloat-abi=hard* *mthumb*/*mfloat-abi=softfp*
+MULTILIB_MATCHES =
+
+MULTILIB_OPTIONS += mfpu=vfp
+MULTILIB_DIRNAMES += vfp
+MULTILIB_EXCEPTIONS += *mfloat-abi=hard*/*mfpu=vfp* *marm*/*mfloat-abi=softfp*/*mfpu=fpa*
+MULTILIB_EXCLUSIONS += !mthumb/mfloat-abi=softfp/!mfpu=vfp
+
+# default float model is fpa, so don't create a explicit copy of it
+MULTILIB_EXCEPTIONS += *marm*/*mfpa*
+
+# permutations of the options which are useful (+) or make no sense (-),
+# defaults are in brackets:
+# + (arm/soft/fpa)
+# + (arm/soft)/vfp
+# - (arm)/softfp(/fpa)
+# + (arm)/softfp/vfp
+# + (arm)/float-abi=hard(/fpa)
+# - (arm)/float-abi=hard/vfp
+# + thumb/(soft/fpa)
+# + thumb/(soft/)vfp
+# - thumb/softfp/fpa
+# - thumb/softfp/vfp
+# - thumb/float-abi=hard/fpa
+# - thumb/float-abi=hard/vfp
+
+# subdirs to be used for multilibs and their respective options:
+#/thumb/vfp -> thumb/soft/vfp
+#/thumb/fpa -> thumb/soft/fpa
+#/thumb -> thumb/soft/fpa
+#/vfp -> arm/soft/vfp
+#/softfp/vfp -> arm/softfp/cfp
+#/fpu/fpa -> arm/hard/fpa
+#/fpu -> arm/hard/fpa
+#/fpa -> arm/soft/fpa
+#. -> arm/soft/fpa