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authorJoel Sherrill <joel.sherrill@oarcorp.com>2013-04-30 12:31:29 -0500
committerJoel Sherrill <joel.sherrill@oarcorp.com>2013-05-01 10:12:52 -0500
commit5aa4ed9917071383371797272840c384a331d25e (patch)
treebfb82cfbc651a9d15072c4ea3f892171e5eea7cc /c
parentClear the atomic conditional compilation. (diff)
downloadrtems-5aa4ed9917071383371797272840c384a331d25e.tar.bz2
i386: PR2010: Remove pc386 BSPs using soft-float
i386 soft-float is no longer supported by gcc. Dropping all references to soft-float in the pc386 BSP.
Diffstat (limited to 'c')
-rw-r--r--c/src/lib/libbsp/i386/pc386/make/custom/pc386dx.cfg12
-rw-r--r--c/src/lib/libbsp/i386/pc386/make/custom/pc586-sse.cfg26
-rw-r--r--c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg18
3 files changed, 2 insertions, 54 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/make/custom/pc386dx.cfg b/c/src/lib/libbsp/i386/pc386/make/custom/pc386dx.cfg
deleted file mode 100644
index 45d4a6c9f3..0000000000
--- a/c/src/lib/libbsp/i386/pc386/make/custom/pc386dx.cfg
+++ /dev/null
@@ -1,12 +0,0 @@
-#
-# Configuration file for a PC using an i386 Class CPU w/o FPU
-#
-
-RTEMS_CPU_MODEL=i386dx
-
-# This contains the compiler options necessary to select the CPU model
-# and (hopefully) optimize for it.
-CPU_CFLAGS = -mtune=i386 -msoft-float -mno-fp-ret-in-387
-
-include $(RTEMS_ROOT)/make/custom/pc386.cfg
-
diff --git a/c/src/lib/libbsp/i386/pc386/make/custom/pc586-sse.cfg b/c/src/lib/libbsp/i386/pc386/make/custom/pc586-sse.cfg
index ad6d94c657..0d100c2372 100644
--- a/c/src/lib/libbsp/i386/pc386/make/custom/pc586-sse.cfg
+++ b/c/src/lib/libbsp/i386/pc386/make/custom/pc586-sse.cfg
@@ -4,31 +4,7 @@
RTEMS_CPU_MODEL=pentium
-# This contains the compiler options necessary to select the CPU model
-# and enable architecture-specific features and extensions.
-
-# Note that the vanilla gcc multilibs for RTEMS are a joke. The
-# variants only differ by a -mtune=xxx option which merely 'optimizes'
-# for 'xxx' but does not use the full instruction set 'xxx' may implement.
-# (fully bwd compatible with i386).
-#
-# I'd recommend to roll your own set of (useful) multilibs instead...
-#
-# Useful variants would be
-# <default> (i386) (generic 386 with hard-float)
-# -msoft-float (generic 386 with soft-float)
-# -march=pentium4 (P4 with sse2)
-#
-# Note also: we give the -mtune=pentium option here only so that at least the
-# variant optimized for pentium (w/o using any pentium-specific
-# features) is used (assuming you use the vanilla RTEMS multilibs).
-#
-# And: The only sse-related feature the RTEMS support really needs is
-# fxsave/fxrstor. You can build with -msse, -msse2 or -msse3,
-# depending on your CPU.
-# There are run-time checks resulting in a 'panic' if code
-# compiled for e.g. -msse3 is executed on a CPU that only
-# supports sse2, though.
+# This configuration is useful for SMP testing on Qemu
CPU_CFLAGS = -mtune=pentium -march=pentium -msse2
include $(RTEMS_ROOT)/make/custom/pc386.cfg
diff --git a/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg b/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg
index 6804aee9a1..34df823240 100644
--- a/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg
+++ b/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg
@@ -4,22 +4,7 @@
RTEMS_CPU_MODEL=pentium
-# This contains the compiler options necessary to select the CPU model
-# and enable architecture-specific features and extensions.
-
-# Note that the vanilla gcc multilibs for RTEMS are a joke. The
-# variants only differ by a -mtune=xxx option which merely 'optimizes'
-# for 'xxx' but does not use the full instruction set 'xxx' may implement.
-# (fully bwd compatible with i386).
-#
-# I'd recommend to roll your own set of (useful) multilibs instead...
-#
-# Useful variants would be
-# <default> (i386) (generic 386 with hard-float)
-# -msoft-float (generic 386 with soft-float)
-# -march=pentium4 (P4 with sse2)
-#
-# Note also: we give the -mtune=pentium option here only so that at least the
+# Note: We give the -mtune=pentium option here only so that at least the
# variant optimized for pentium (w/o using any pentium-specific
# features) is used (assuming you use the vanilla RTEMS multilibs).
#
@@ -32,4 +17,3 @@ RTEMS_CPU_MODEL=pentium
CPU_CFLAGS = -mtune=pentium4 -march=pentium4 -msse3
include $(RTEMS_ROOT)/make/custom/pc386.cfg
-