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i386: PR2010: Remove pc386 BSPs using soft-float

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i386 soft-float is no longer supported by gcc. Dropping
all references to soft-float in the pc386 BSP.
This commit is contained in:
Joel Sherrill
2013-04-30 12:31:29 -05:00
parent 502693f50e
commit 5aa4ed9917
3 changed files with 2 additions and 54 deletions
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12
c/src/lib/libbsp/i386/pc386/make/custom/pc386dx.cfg
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@@ -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

26
c/src/lib/libbsp/i386/pc386/make/custom/pc586-sse.cfg
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@@ -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

18
c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg
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@@ -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