0d8a05c38e
The three patches allow to compile applications using TLS emulation from libgcc or C++ applications. The patches 892-libgcc-mkmap-symver-support-skip_underscore.patch and 893-libgcc-config-bfin-use-the-generic-linker-version-in.patch fixes how libgcc is generated, by making the necessary libgcc symbols declared "GLOBAL", and therefore visible outside of libgcc. This fixes a large number of undefined reference issues (for either C++ applications or applications using TLS emulation). This was reported as gcc PR74748. The patch 894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch allows to build DWARF in FDPIC mode. This patch replaces the older 892-disable-dwarf-bfin.patch, as instead of disabling DWARF support, it fixes it. This was reported as gcc PR68468. In order to get C++ working without unresolved symbols, we also need to disable symbol versioning (--disable-symvers). This is a remaining issue in gcc which will be investigated at a later point. Since this commit fixes C++ support in Blackfin, it re-enables the selection of C++ support for this architecture. Fixes: (alsa-lib emutls) http://autobuild.buildroot.net/results/8544ce58d75820666579db93a25ca5656a8efa8e/ (cairo emutls) http://autobuild.buildroot.net/results/88b02a5dd5408318941ccbfcea0a9cbaa331500a/ (audiofile c++) http://autobuild.buildroot.net/results/394e530c5dcd9ccb590eb151aeaadb37d11e0e39/ (assimp c++) http://autobuild.buildroot.net/results/01f4be126c2d786a5ad7f220c2cf60539888a480/ (bellagio c++) http://autobuild.buildroot.net/results/ada/ada44228bf13ec05382275bd6571396f5ba2b1f7/ Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Tested-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
186 lines
5.7 KiB
Plaintext
186 lines
5.7 KiB
Plaintext
comment "GCC Options"
|
|
|
|
config BR2_GCC_NEEDS_MPC
|
|
bool
|
|
|
|
config BR2_GCC_SUPPORTS_GRAPHITE
|
|
bool
|
|
|
|
choice
|
|
prompt "GCC compiler Version"
|
|
default BR2_GCC_VERSION_4_8_ARC if BR2_arc
|
|
default BR2_GCC_VERSION_4_9_X
|
|
help
|
|
Select the version of gcc you wish to use.
|
|
|
|
config BR2_GCC_VERSION_4_7_X
|
|
bool "gcc 4.7.x"
|
|
depends on BR2_DEPRECATED_SINCE_2016_05
|
|
# Broken or unsupported architectures
|
|
depends on !BR2_microblaze && !BR2_aarch64 && !BR2_arc \
|
|
&& !BR2_powerpc64le && !BR2_nios2 && !BR2_bfin
|
|
# Broken or unsupported ARM cores
|
|
depends on !BR2_cortex_a12 && !BR2_pj4 && !BR2_cortex_a17
|
|
# Broken or unsupported PPC cores
|
|
depends on !BR2_powerpc_e5500 && !BR2_powerpc_e6500 && \
|
|
!BR2_powerpc_power8
|
|
# SPARC -mcpu=leon3 appeared in gcc 4.8.x
|
|
depends on !BR2_sparc_leon3
|
|
# Broken or unsupported x86 cores
|
|
depends on !BR2_x86_jaguar && !BR2_x86_steamroller
|
|
# Unsupported for MIPS R6
|
|
depends on !BR2_mips_32r6 && !BR2_mips_64r6
|
|
select BR2_GCC_NEEDS_MPC
|
|
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
|
|
|
|
config BR2_GCC_VERSION_4_8_X
|
|
bool "gcc 4.8.x"
|
|
# Broken or unsupported architectures
|
|
depends on !BR2_microblaze && !BR2_arc \
|
|
&& !BR2_powerpc64le && !BR2_nios2 && !BR2_bfin
|
|
# Broken or unsupported ARM cores
|
|
depends on !BR2_cortex_a12 && !BR2_cortex_a17
|
|
# Broken or unsupported PPC cores
|
|
depends on !BR2_powerpc_power8
|
|
# gcc-4.8.x + binutils-2.25 is broken for MIPS
|
|
depends on !((BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el) && BR2_BINUTILS_VERSION_2_25_X)
|
|
# Unsupported for MIPS R6
|
|
depends on !BR2_mips_32r6 && !BR2_mips_64r6
|
|
select BR2_GCC_NEEDS_MPC
|
|
select BR2_GCC_SUPPORTS_GRAPHITE
|
|
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
|
|
|
|
config BR2_GCC_VERSION_4_8_ARC
|
|
bool "gcc 4.8-arc"
|
|
# Only supported architecture
|
|
depends on BR2_arc
|
|
select BR2_GCC_NEEDS_MPC
|
|
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
|
|
|
|
|
|
config BR2_GCC_VERSION_4_9_X
|
|
bool "gcc 4.9.x"
|
|
# Broken or unsupported architectures
|
|
depends on !BR2_arc && !BR2_bfin
|
|
# Broken or unsupported ARM cores
|
|
depends on !BR2_cortex_a17
|
|
# Unsupported for MIPS R6
|
|
depends on !BR2_mips_32r6 && !BR2_mips_64r6
|
|
# PR60102 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60102
|
|
select BR2_GCC_NEEDS_MPC
|
|
select BR2_GCC_SUPPORTS_GRAPHITE
|
|
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
|
|
|
|
config BR2_GCC_VERSION_5_X
|
|
bool "gcc 5.x"
|
|
# Broken or unsupported architectures
|
|
depends on !BR2_arc && !BR2_bfin
|
|
select BR2_GCC_NEEDS_MPC
|
|
select BR2_GCC_SUPPORTS_GRAPHITE
|
|
select BR2_TOOLCHAIN_GCC_AT_LEAST_5
|
|
|
|
config BR2_GCC_VERSION_6_X
|
|
bool "gcc 6.x"
|
|
# Broken or unsupported architectures
|
|
depends on !BR2_arc
|
|
select BR2_GCC_NEEDS_MPC
|
|
select BR2_GCC_SUPPORTS_GRAPHITE
|
|
select BR2_TOOLCHAIN_GCC_AT_LEAST_6
|
|
|
|
endchoice
|
|
|
|
# Indicates if GCC for architecture supports --with-{arch,cpu,..} to
|
|
# set default CFLAGS, otherwise values will be used by toolchain
|
|
# wrapper.
|
|
config BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS
|
|
bool
|
|
default y if !BR2_bfin
|
|
|
|
config BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE
|
|
bool
|
|
default y
|
|
|
|
config BR2_GCC_VERSION
|
|
string
|
|
default "4.7.4" if BR2_GCC_VERSION_4_7_X
|
|
default "4.8.5" if BR2_GCC_VERSION_4_8_X
|
|
default "4.9.4" if BR2_GCC_VERSION_4_9_X
|
|
default "5.4.0" if BR2_GCC_VERSION_5_X
|
|
default "6.1.0" if BR2_GCC_VERSION_6_X
|
|
default "arc-2016.09-eng008" if BR2_GCC_VERSION_4_8_ARC
|
|
|
|
config BR2_EXTRA_GCC_CONFIG_OPTIONS
|
|
string "Additional gcc options"
|
|
default ""
|
|
help
|
|
Any additional gcc configure options you may want to
|
|
include. Those options are applied for all of the gcc
|
|
initial, gcc intermediate and gcc final passes.
|
|
|
|
config BR2_TOOLCHAIN_BUILDROOT_CXX
|
|
bool "Enable C++ support"
|
|
select BR2_INSTALL_LIBSTDCPP
|
|
help
|
|
Enable this option if you want your toolchain to support the
|
|
C++ language and you want C++ libraries to be installed on
|
|
your target system.
|
|
|
|
comment "Fortran support needs a toolchain w/ wchar"
|
|
depends on BR2_TOOLCHAIN_HAS_LIBQUADMATH
|
|
depends on !BR2_USE_WCHAR # libquadmath
|
|
|
|
config BR2_TOOLCHAIN_BUILDROOT_FORTRAN
|
|
bool "Enable Fortran support"
|
|
# on architecture building libquadmath, wchar is required
|
|
depends on !BR2_TOOLCHAIN_HAS_LIBQUADMATH || \
|
|
(BR2_TOOLCHAIN_HAS_LIBQUADMATH && BR2_USE_WCHAR)
|
|
select BR2_TOOLCHAIN_HAS_FORTRAN
|
|
help
|
|
Enable this option if you want your toolchain to support the
|
|
Fortran language and you want Fortran libraries to be
|
|
installed on your target system.
|
|
|
|
config BR2_GCC_ENABLE_TLS
|
|
bool "Enable compiler tls support" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
|
|
default y
|
|
depends on BR2_PTHREADS_NATIVE || BR2_TOOLCHAIN_BUILDROOT_GLIBC
|
|
help
|
|
Enable the compiler to generate code for accessing
|
|
thread local storage variables
|
|
|
|
config BR2_GCC_ENABLE_LTO
|
|
bool "Enable compiler link-time-optimization support"
|
|
select BR2_BINUTILS_ENABLE_LTO
|
|
help
|
|
This option enables link-time optimization (LTO) support in
|
|
gcc.
|
|
|
|
config BR2_GCC_ENABLE_OPENMP
|
|
bool "Enable compiler OpenMP support"
|
|
depends on !BR2_PTHREADS_NONE && !BR2_arc && !BR2_microblaze
|
|
help
|
|
Enable OpenMP support for the compiler
|
|
|
|
config BR2_GCC_ENABLE_LIBMUDFLAP
|
|
bool "Enable libmudflap support"
|
|
# There are architectures, or specific configurations for
|
|
# which mudflap is not supported.
|
|
depends on !BR2_ARM_INSTRUCTIONS_THUMB && !BR2_powerpc_SPE
|
|
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
|
|
help
|
|
libmudflap is a gcc library used for the mudflap pointer
|
|
debugging functionality. It is only needed if you intend to
|
|
use the -fmudflap gcc flag.
|
|
|
|
See http://gcc.gnu.org/wiki/Mudflap_Pointer_Debugging and
|
|
the help of the gcc -fmudflap option for more details.
|
|
|
|
If you're unsure, leave this option disabled.
|
|
|
|
config BR2_GCC_ENABLE_GRAPHITE
|
|
bool "Enable graphite support"
|
|
depends on BR2_GCC_SUPPORTS_GRAPHITE
|
|
help
|
|
This option enables the graphite optimizations in the
|
|
compiler.
|