[build] Enable building with the Intel C compiler (icc)

This commit is contained in:
Michael Brown
2009-03-10 17:50:01 +00:00
parent 16aa435567
commit 1c67623e37
13 changed files with 363 additions and 37 deletions

View File

@@ -4,22 +4,33 @@ CFLAGS += -march=i386
# Code size reduction.
#
CFLAGS += -fstrength-reduce -fomit-frame-pointer
CFLAGS += -fomit-frame-pointer
# Code size reduction.
#
ifeq ($(CCTYPE),gcc)
CFLAGS += -fstrength-reduce
endif
# Code size reduction. gcc3 needs a different syntax to gcc2 if you
# want to avoid spurious warnings.
#
ifeq ($(CCTYPE),gcc)
GCC_VERSION := $(subst ., ,$(shell $(CC) -dumpversion))
GCC_MAJOR := $(firstword $(GCC_VERSION))
ifeq ($(GCC_MAJOR),2)
CFLAGS += -malign-jumps=1 -malign-loops=1 -malign-functions=1
else
CFLAGS += -falign-jumps=1 -falign-loops=1 -falign-functions=1
endif
endif # gcc2
endif # gcc
# Code size reduction. This is almost always a win. The kernel uses it, too.
# Code size reduction. This is almost always a win. The kernel uses
# it, too.
#
ifeq ($(CCTYPE),gcc)
CFLAGS += -mpreferred-stack-boundary=2
endif
# Code size reduction. Use regparm for all functions - C functions
# called from assembly (or vice versa) need __asmcall now
@@ -27,7 +38,9 @@ CFLAGS += -mpreferred-stack-boundary=2
CFLAGS += -mregparm=3
# Code size reduction. Use -mrtd (same __asmcall requirements as above)
ifeq ($(CCTYPE),gcc)
CFLAGS += -mrtd
endif
# Code size reduction. This is the logical complement to -mregparm=3.
# It doesn't currently buy us anything, but if anything ever tries to