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leon: do not use -mfix-{device} with Clang

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Clang do not support -mfix-gr712rc, -mfix-ut700 and -mfix-ut699.
Therefore we adjust the CPU_CFLAGS to remove these when compiling with
Clang. Instead use
  GR712RC:      -mcpu=gr712rc
  GR740:        -mcpu=gr740
  UT699/UT700:  Not currently supported by clang, use LEON3 BSP.
This commit is contained in:
Daniel Hellstrom
2018-08-31 08:21:05 +02:00
parent 6dc0b5f4c5
commit dc32b6aa08
2 changed files with 28 additions and 2 deletions
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5
bsps/sparc/leon3/config/gr712rc.cfg
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@@ -8,7 +8,12 @@ RTEMS_CPU=sparc
# This contains the compiler options necessary to select the CPU model # This contains the compiler options necessary to select the CPU model
# and (hopefully) optimize for it. # and (hopefully) optimize for it.
# GCC and clang use different switches to select target:
ifneq (,$(findstring clang,$(CC)))
CPU_CFLAGS = -mcpu=gr712rc
else
CPU_CFLAGS = -mcpu=leon3 -mfix-gr712rc CPU_CFLAGS = -mcpu=leon3 -mfix-gr712rc
endif
# optimize flag: typically -O2 # optimize flag: typically -O2
CFLAGS_OPTIMIZE_V = -O2 -g CFLAGS_OPTIMIZE_V = -O2 -g

23
bsps/sparc/leon3/config/gr740.cfg
View File

@@ -1 +1,22 @@
include $(RTEMS_ROOT)/make/custom/leon3.cfg #
# Config file for the LEON3 SPARC processor.
#
include $(RTEMS_ROOT)/make/custom/default.cfg
RTEMS_CPU=sparc
# This contains the compiler options necessary to select the CPU model
# and (hopefully) optimize for it.
# GCC and clang use different switches to select target:
ifneq (,$(findstring clang,$(CC)))
CPU_CFLAGS = -mcpu=gr740
else
CPU_CFLAGS = -mcpu=leon3
endif
# optimize flag: typically -O2
CFLAGS_OPTIMIZE_V = -O2 -g
CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
LDFLAGS = -Wl,--gc-sections