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Linux.mk
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Linux.mk
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#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
include $(CORE_DEPTH)/coreconf/UNIX.mk
#
# The default implementation strategy for Linux is now pthreads
#
USE_PTHREADS = 1
ifeq ($(USE_PTHREADS),1)
IMPL_STRATEGY = _PTH
endif
CC = gcc
CCC = g++
RANLIB = ranlib
DEFAULT_COMPILER = gcc
ifeq ($(OS_TEST),ppc64)
CPU_ARCH = ppc
ifeq ($(USE_64),1)
ARCHFLAG = -m64
endif
else
ifeq ($(OS_TEST),alpha)
OS_REL_CFLAGS = -D_ALPHA_
CPU_ARCH = alpha
else
ifeq ($(OS_TEST),x86_64)
ifeq ($(USE_64),1)
CPU_ARCH = x86_64
else
OS_REL_CFLAGS = -Di386
CPU_ARCH = x86
ARCHFLAG = -m32
endif
else
ifeq ($(OS_TEST),sparc64)
CPU_ARCH = sparc
else
ifeq (,$(filter-out arm% sa110,$(OS_TEST)))
CPU_ARCH = arm
else
ifeq (,$(filter-out parisc%,$(OS_TEST)))
CPU_ARCH = hppa
else
ifeq (,$(filter-out i%86,$(OS_TEST)))
OS_REL_CFLAGS = -Di386
CPU_ARCH = x86
else
ifeq ($(OS_TEST),sh4a)
CPU_ARCH = sh4
else
# $(OS_TEST) == m68k, ppc, ia64, sparc, s390, s390x, mips, sh3, sh4
CPU_ARCH = $(OS_TEST)
endif
endif
endif
endif
endif
endif
endif
endif
LIBC_TAG = _glibc
ifeq ($(OS_RELEASE),2.0)
OS_REL_CFLAGS += -DLINUX2_0
MKSHLIB = $(CC) -shared -Wl,-soname -Wl,$(@:$(OBJDIR)/%.so=%.so) $(RPATH)
ifdef MAPFILE
MKSHLIB += -Wl,--version-script,$(MAPFILE)
endif
PROCESS_MAP_FILE = grep -v ';-' $< | \
sed -e 's,;+,,' -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,;,' > $@
endif
ifdef BUILD_OPT
ifeq (11,$(ALLOW_OPT_CODE_SIZE)$(OPT_CODE_SIZE))
OPTIMIZER = -Os
else
OPTIMIZER = -O2
endif
ifdef MOZ_DEBUG_SYMBOLS
ifdef MOZ_DEBUG_FLAGS
OPTIMIZER += $(MOZ_DEBUG_FLAGS)
else
OPTIMIZER += -gdwarf-2
endif
endif
endif
ifeq ($(USE_PTHREADS),1)
OS_PTHREAD = -lpthread
endif
# See bug 537829, in particular comment 23.
# Place -ansi and *_SOURCE before $(DSO_CFLAGS) so DSO_CFLAGS can override
# -ansi on platforms like Android where the system headers are C99 and do
# not build with -ansi.
STANDARDS_CFLAGS = -ansi -D_POSIX_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE
OS_CFLAGS = $(STANDARDS_CFLAGS) $(DSO_CFLAGS) $(OS_REL_CFLAGS) $(ARCHFLAG) -Wall -Werror-implicit-function-declaration -Wno-switch -pipe -DLINUX -Dlinux -DHAVE_STRERROR
OS_LIBS = $(OS_PTHREAD) -ldl -lc
ifdef USE_PTHREADS
DEFINES += -D_REENTRANT
endif
ARCH = linux
DSO_CFLAGS = -fPIC
DSO_LDOPTS = -shared $(ARCHFLAG)
# The linker on Red Hat Linux 7.2 and RHEL 2.1 (GNU ld version 2.11.90.0.8)
# incorrectly reports undefined references in the libraries we link with, so
# we don't use -z defs there.
ZDEFS_FLAG = -Wl,-z,defs
DSO_LDOPTS += $(if $(findstring 2.11.90.0.8,$(shell ld -v)),,$(ZDEFS_FLAG))
LDFLAGS += $(ARCHFLAG)
# On Maemo, we need to use the -rpath-link flag for even the standard system
# library directories.
ifdef _SBOX_DIR
LDFLAGS += -Wl,-rpath-link,/usr/lib:/lib
endif
# INCLUDES += -I/usr/include -Y/usr/include/linux
G++INCLUDES = -I/usr/include/g++
#
# Always set CPU_TAG on Linux.
#
CPU_TAG = _$(CPU_ARCH)
#
# On Linux 2.6 or later, build libfreebl3.so with no NSPR and libnssutil3.so
# dependencies by default. Set FREEBL_NO_DEPEND to 0 in the environment to
# override this.
#
ifeq (2.6,$(firstword $(sort 2.6 $(OS_RELEASE))))
ifndef FREEBL_NO_DEPEND
FREEBL_NO_DEPEND = 1
FREEBL_LOWHASH = 1
endif
endif
USE_SYSTEM_ZLIB = 1
ZLIB_LIBS = -lz
# The -rpath '$$ORIGIN' linker option instructs this library to search for its
# dependencies in the same directory where it resides.
ifeq ($(BUILD_SUN_PKG), 1)
ifeq ($(USE_64), 1)
RPATH = -Wl,-rpath,'$$ORIGIN:/opt/sun/private/lib64:/opt/sun/private/lib'
else
RPATH = -Wl,-rpath,'$$ORIGIN:/opt/sun/private/lib'
endif
endif
OS_REL_CFLAGS += -DLINUX2_1
MKSHLIB = $(CC) $(DSO_LDOPTS) -Wl,-soname -Wl,$(@:$(OBJDIR)/%.so=%.so) $(RPATH)
ifdef MAPFILE
MKSHLIB += -Wl,--version-script,$(MAPFILE)
endif
PROCESS_MAP_FILE = grep -v ';-' $< | \
sed -e 's,;+,,' -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,;,' > $@
ifeq ($(OS_RELEASE),2.4)
DEFINES += -DNO_FORK_CHECK
endif