107 lines
6.7 KiB
PHP
Executable File
107 lines
6.7 KiB
PHP
Executable File
$(CONTRIB_DIR)/gcc-$(GCC_VERSION)/configure:: $(CONTRIB_DIR)/gcc-$(GCC_VERSION)
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$(ECHO) "$(BRIGHT_COL)patching gcc build system...$(DEFAULT_COL)"
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@#
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@# Enable support for passing custom 'tmake_file' and 'extra_parts' to the
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@# GCC configure process uncommenting the default initialization of the
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@# respective variables. The 'extra_parts' variable is used to carry the
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@# information about which crtN files are to be created.
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@#
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$(VERBOSE)sed -i "/^tmake_file=$$/s/^/#/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/config.gcc
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$(VERBOSE)sed -i "/^extra_parts=$$/s/^/#/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/config.gcc
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$(VERBOSE)sed -i "/^tmake_file=$$/s/^/#/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libgcc/config.host
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$(VERBOSE)sed -i "/^extra_parts=$$/s/^/#/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libgcc/config.host
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$(VERBOSE)sed -i "/extra_parts=\"crt.*\"/s/^/#/g" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libgcc/config.host
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@#
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@# /* TODO: add documentation */
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@#
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$(VERBOSE)sed -i "s/^libgcov-objects = .*/libgcov-objects = /" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libgcc/Makefile.in
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$(VERBOSE)sed -i "s/-lc//" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libgcc/config/t-{libunwind-elf,slibgcc}
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@#
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@# Let 'config.gcc' expand our already populated 'tmake_file' variable rather
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@# than making a hard assignment. This is needed for the ARM platform because
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@# the target 'arm-elf-eabi' actually matches the pattern 'arm-*-*-eabi' in
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@# the 'config.gcc' file.
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@#
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$(VERBOSE)sed -i "/tmake_file=\"arm/s/=\"/=\"\$${tmake_file} /" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/config.gcc
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@#
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@# Enable LINK_SPEC customization via configure arguments
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@#
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@# We add a hook for sneaking our custom LINK_SPEC definition into the GCC
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@# configure process by uncommentig the 'host_xm_include_list'. This enables us
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@# to supply a custom header file to be included into 'gcc/config.h' defining
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@# the 'LINK_SPEC' macro. This macro expresses the policy of how the GCC
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@# frontend invokes 'ld' on multiarch platforms. I.e., on x86, we need to pass
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@# '-melf_i386' to 'ld' when building in '-m32' mode.
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@#
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$(VERBOSE)sed -i "/^host_xm_include_list=$$/s/^/#/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/configure.ac
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@#
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@# Make sure to disable the 'inhibit_libc' flag, which is evaluated when
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@# compiling libgcc. When libc is inhibited, the 'unwind-dw2-fde-glibc.c'
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@# is not using the "new" glibc exception handling mechanism. However,
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@# Genode's dynamic linker relies on this mechanism.
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@#
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$(VERBOSE)sed -i "/inhibit_libc=true/s/true/false # was true/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/configure.ac
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@#
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@# Accept prepopulation of 'host_configargs' and 'target_configargs' as
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@# configure argument (only needed for gcc-4.4.5, fixed with later versions)
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@#
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$(VERBOSE)sed -i "/host_configargs=.--cache-file/s/=./=\"\$$host_configargs /" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/configure.ac
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$(VERBOSE)sed -i "/target_configargs=..baseargs/s/=.*/=\"\$$target_configargs \$${baseargs}\"/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/configure.ac
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@#
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@# Allow customization of CPPFLAGS_FOR_TARGET, not supported by the original
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@# GCC config and build system.
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@#
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$(VERBOSE)sed -i "/^CXXFLAGS_FOR_TARGET =/s/^/CPPFLAGS_FOR_TARGET = @CPPFLAGS_FOR_TARGET@\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/Makefile.tpl
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$(VERBOSE)sed -i "/AC_SUBST(CFLAGS_FOR_TARGET)/s/^/AC_SUBST(CPPFLAGS_FOR_TARGET)\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/configure.ac
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@#
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@# Fix the handling of CPP_FOR_TARGET. Without the fix, the configure script
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@# of libgcc tries to use the normal 'cpp' for executing preprocessor tests,
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@# which produces bogus results.
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@#
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$(VERBOSE)sed -i "/CC=.*XGCC.*export CC/s/^/ CPP=\"\$$(CPP_FOR_TARGET) \$$(XGCC_FLAGS_FOR_TARGET) \$$\$$TFLAGS\"; export CPP; \\\\\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/Makefile.tpl
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$(VERBOSE)sed -i "/^CC_FOR_TARGET=/s/^/CPP_FOR_TARGET=\$$(STAGE_CC_WRAPPER) @CPP_FOR_TARGET@\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/Makefile.tpl
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$(VERBOSE)sed -i "/CC=.*XGCC.*TFLAGS....$$/s/^/ 'CPP=\$$\$$(CPP_FOR_TARGET) \$$\$$(XGCC_FLAGS_FOR_TARGET) \$$\$$(TFLAGS)' \\\\\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/Makefile.tpl
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$(VERBOSE)sed -i "/flag= CC_FOR_TARGET/s/^/flags_to_pass = { flag= CPP_FOR_TARGET ; };\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/Makefile.def
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$(VERBOSE)sed -i "/^GCC_TARGET_TOOL.cc,/s/^/GCC_TARGET_TOOL(cpp, CPP_FOR_TARGET, CPP, \[gcc\/cpp -B\$$\$$r\/\$$(HOST_SUBDIR)\/gcc\/\])\n/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/configure.ac
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@#
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@# Ensure -fno-short-enums as default.
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@#
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$(VERBOSE)sed -i "s/return TARGET_AAPCS_BASED && arm_abi != ARM_ABI_AAPCS_LINUX/return false/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/config/arm/arm.c
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@#
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@# Remove sanity check for host/target combination in configure script of
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@# libstdc++. An alternative fix would be the addition of a new host or
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@# the use of an existing one. However, adding a new host would require
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@# us to maintain a larger patch to the GCC build system, and using an
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@# existing host comes with all the (possibly unwanted) policies associated
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@# with the respective host platform. We want to stick with the bare-bone
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@# compiler as much as possible.
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@#
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$(VERBOSE)sed -i "/No support for this host.target combination/d" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libstdc++-v3/crossconfig.m4
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$(VERBOSE)cd $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libstdc++-v3; $(AUTOCONF)
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@#
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@# Allow passing of PICFLAGS to the configure script of libstdc++.
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@# Without this change, libsupc++ would be compiled w/o PICFLAGS, resulting
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@# in text relocations. Because for base tool chains, no 'dynamic_linker'
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@# is defined (see 'libtool.m4'), 'dynamic_linker' is set to 'no', which
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@# results in 'can_build_shared = no', which, in turn , results
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@# in 'enable_shared = no', which, in turn, sets 'PIC_CXXFLAGS' to
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@# nothing rather then '-prefer-pic'.
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@#
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$(VERBOSE)sed -i "/PIC_CXXFLAGS=$$/s/PIC/__PIC/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libstdc++-v3/configure.ac
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@#
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@# Re-generate configure scripts
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@#
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$(VERBOSE)cd $(CONTRIB_DIR)/gcc-$(GCC_VERSION); autogen Makefile.def
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$(VERBOSE)cd $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libgcc; $(AUTOCONF)
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$(VERBOSE)cd $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/libstdc++-v3; $(AUTOCONF)
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$(VERBOSE)cd $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc; $(AUTOCONF)
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$(VERBOSE)cd $(CONTRIB_DIR)/gcc-$(GCC_VERSION); $(AUTOCONF)
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@#
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@# Fix a bug in gcc 4.6.1 that causes compile errors when building Qt4 for ARM
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@# More detailed description at and solution from http://gcc.gnu.org/ml/gcc-patches/2010-11/msg02245.html
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@#
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ifeq ($(GCC_VERSION),4.6.1)
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$(ECHO) "$(BRIGHT_COL)patching gcc...$(DEFAULT_COL)"
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$(VERBOSE)sed -i "/|| (volatilep && flag_strict_volatile_bitfields > 0/s/)/ \&\& (bitpos % GET_MODE_ALIGNMENT (mode) != 0))/" $(CONTRIB_DIR)/gcc-$(GCC_VERSION)/gcc/expr.c
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endif
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