| # |
| # Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. |
| # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| # |
| # This code is free software; you can redistribute it and/or modify it |
| # under the terms of the GNU General Public License version 2 only, as |
| # published by the Free Software Foundation. |
| # |
| # This code is distributed in the hope that it will be useful, but WITHOUT |
| # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| # version 2 for more details (a copy is included in the LICENSE file that |
| # accompanied this code). |
| # |
| # You should have received a copy of the GNU General Public License version |
| # 2 along with this work; if not, write to the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| # |
| # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| # CA 95054 USA or visit www.sun.com if you need additional information or |
| # have any questions. |
| # |
| # |
| |
| #------------------------------------------------------------------------ |
| # CC, CPP & AS |
| |
| CPP = g++ |
| CC = gcc |
| AS = $(CC) -c |
| |
| # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only |
| # prints the numbers (e.g. "2.95", "3.2.1") |
| CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1) |
| CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2) |
| |
| # check for precompiled headers support |
| ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0" |
| USE_PRECOMPILED_HEADER=1 |
| PRECOMPILED_HEADER_DIR=. |
| PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/incls/_precompiled.incl.gch |
| endif |
| |
| |
| #------------------------------------------------------------------------ |
| # Compiler flags |
| |
| # position-independent code |
| PICFLAG = -fPIC |
| |
| VM_PICFLAG/LIBJVM = $(PICFLAG) |
| VM_PICFLAG/AOUT = |
| |
| ifneq ($(BUILDARCH), i486) |
| VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO)) |
| else |
| # PIC has significant overhead on x86, build nonpic VM for now. |
| # Link JVM at a "good" base location to avoid unnecessary .text patching. |
| JVM_BASE_ADDR = 0x06000000 |
| endif |
| |
| CFLAGS += $(VM_PICFLAG) |
| CFLAGS += -fno-rtti |
| CFLAGS += -fno-exceptions |
| CFLAGS += -D_REENTRANT |
| CFLAGS += -fcheck-new |
| |
| ARCHFLAG = $(ARCHFLAG/$(BUILDARCH)) |
| ARCHFLAG/i486 = -m32 -march=i586 |
| ARCHFLAG/amd64 = -m64 |
| ARCHFLAG/ia64 = |
| ARCHFLAG/sparc = -m32 -mcpu=v9 |
| ARCHFLAG/sparcv9 = -m64 -mcpu=v9 |
| |
| CFLAGS += $(ARCHFLAG) |
| AOUT_FLAGS += $(ARCHFLAG) |
| LFLAGS += $(ARCHFLAG) |
| ASFLAGS += $(ARCHFLAG) |
| |
| # Use C++ Interpreter |
| ifdef CC_INTERP |
| CFLAGS += -DCC_INTERP |
| endif |
| |
| # Keep temporary files (.ii, .s) |
| ifdef NEED_ASM |
| CFLAGS += -save-temps |
| else |
| CFLAGS += -pipe |
| endif |
| |
| # Compiler warnings are treated as errors |
| WARNINGS_ARE_ERRORS = -Werror |
| # Except for a few acceptable ones |
| ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare |
| CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS) |
| # Special cases |
| CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) |
| |
| # The flags to use for an Optimized g++ build |
| OPT_CFLAGS += -O3 |
| |
| # Hotspot uses very unstrict aliasing turn this optimization off |
| OPT_CFLAGS += -fno-strict-aliasing |
| |
| # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp |
| # if we use expensive-optimizations |
| ifeq ($(BUILDARCH), ia64) |
| OPT_CFLAGS += -fno-expensive-optimizations |
| endif |
| |
| OPT_CFLAGS/NOOPT=-O0 |
| |
| #------------------------------------------------------------------------ |
| # Linker flags |
| |
| # statically link libstdc++.so, work with gcc but ignored by g++ |
| STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic |
| |
| # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x. |
| ifneq ("${CC_VER_MAJOR}", "2") |
| STATIC_LIBGCC += -static-libgcc |
| endif |
| |
| ifeq ($(BUILDARCH), ia64) |
| LFLAGS += -Wl,-relax |
| endif |
| |
| # Enable linker optimization |
| LFLAGS += -Xlinker -O1 |
| |
| # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file. |
| MAPFLAG = -Xlinker --version-script=FILENAME |
| |
| # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj |
| SONAMEFLAG = -Xlinker -soname=SONAME |
| |
| # Build shared library |
| SHARED_FLAG = -shared |
| |
| # Keep symbols even they are not used |
| AOUT_FLAGS += -export-dynamic |
| |
| #------------------------------------------------------------------------ |
| # Debug flags |
| |
| # Use the stabs format for debugging information (this is the default |
| # on gcc-2.91). It's good enough, has all the information about line |
| # numbers and local variables, and libjvm_g.so is only about 16M. |
| # Change this back to "-g" if you want the most expressive format. |
| # (warning: that could easily inflate libjvm_g.so to 150M!) |
| # Note: The Itanium gcc compiler crashes when using -gstabs. |
| DEBUG_CFLAGS/ia64 = -g |
| DEBUG_CFLAGS/amd64 = -g |
| DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) |
| ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),) |
| DEBUG_CFLAGS += -gstabs |
| endif |