Beginnings of support for multiple toolchains

svn path=/trunk/tools/buildsystem/; revision=10104

1 files changed, 81 insertions, 0 deletions

diff --git a/makefiles/Makefile.gcc b/makefiles/Makefile.gcc
new file mode 100644
index 0000000..fa2660b
--- /dev/null
+++ b/makefiles/Makefile.gcc
@@ -0,0 +1,81 @@
+# GCC specific toolchain setup
+# We assume that we're using a standard GCC/binutils environment
+
+CCDEF := -D
+CCOPT := -O2
+CCNOOPT := -O0
+CCDBG := -g
+CCINC := -I
+CCLIB := -L
+CCAS := -xassembler-with-cpp
+CCSHR := -fPIC
+
+CXXDEF := -D
+CXXOPT := -O2
+CXXNOOPT := -O0
+CXXDBG := -g
+CXXINC := -I
+CXXLIB := -L
+CXXSHR := -fPIC
+
+LDDBG := -g
+# Reevaluation is required here
+LDSHR = -shared -Wl,-soname,$(SONAME)
+
+ARFLG := cru
+
+# Extensions for coverage target
+ifeq ($(MAKECMDGOALS),coverage)
+  COVCFLAGS ?= -fprofile-arcs -ftest-coverage
+  COVCXXFLAGS ?= -fprofile-arcs -ftest-coverage
+  COVLDFLAGS ?= -lgcov
+
+  CFLAGS := $(CFLAGS) $(COVCFLAGS)
+  CXXFLAGS := $(CXXFLAGS) $(COVCXXFLAGS)
+  LDFLAGS := $(LDFLAGS) $(COVLDFLAGS)
+endif
+
+# Extensions for profile target
+ifeq ($(MAKECMDGOALS),profile)
+  PROFCFLAGS ?= -pg
+  PROFCXXFLAGS ?= -pg
+  PROFLDFLAGS ?= -pg
+
+  CFLAGS := $(CFLAGS) $(PROFCFLAGS)
+  CXXFLAGS := $(CXXFLAGS) $(PROFCXXFLAGS)
+  LDFLAGS := $(LDFLAGS) $(PROFLDFLAGS)
+endif
+
+# RISC OS module extensions
+ifeq ($(COMPONENT_TYPE),riscos-module)
+  ifneq ($(TARGET),riscos)
+    $(error Attempting to build a RISC OS module for a non-RISC OS target)
+  endif
+
+  CFLAGS := $(CFLAGS) -mmodule
+  CXXFLAGS := $(CXXFLAGS) -mmodule
+  LDFLAGS := $(LDFLAGS) -mmodule
+endif
+
+###############################################################################
+# Other settings
+###############################################################################
+
+# Determine if the compiler supports simultaneous build & dep.
+ccvsn := $(shell $(CC) --version)
+# "<binary name> (GCC) x.y.z (foo bar baz)"
+ifeq ($(word 2,$(ccvsn)),(GCC))
+  # If the major version (x, above) is not 2, then assume build & dep.
+  # This will break if using a version of GCC < 2, but that's unlikely.
+  GCCVER := $(word 1,$(subst ., ,$(word 3, $(ccvsn))))
+  ifneq ($(GCCVER),2)
+    CC_CAN_BUILD_AND_DEP ?= yes
+  endif
+else
+  # Older versions of GCC just output the version number
+  GCCVER := $(word 1,$(subst ., ,$(ccvsn)))
+  ifneq ($(GCCVER),2)
+    CC_CAN_BUILD_AND_DEP ?= yes
+  endif
+endif
+