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gcc-cross-canadian: Fix cross canadian compiler for baremetal targets

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While building GCC it checks whether the include directory exists,
if it doesnt it throws an error and exits:

| The directory that should contain system headers does not exist:
| tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-riscv32/
    11.2.0-r0/recipe-sysroot/usr/include/
| make[1]: *** [Makefile:3257: stmp-fixinc] Error 1

Even though for the baremetal toolchain not having this directory
does make sense.

We overcame this by removing the --with-sysroot=/not/exist argument
for baremetal toolchains (via TARGET_OS override), however, the
newlib toolchain does have headers and an includedir, hence by fixing
the baremetal toolchain we broke the newlib one since it uses the same
TARGET_OS as baremetal, causing for example (on newlib):

/sdk/sysroots/x86_64-pokysdk-linux/usr/lib/riscv32-poky-elf/gcc/
    riscv32-poky-elf/11.2.0/include/stdint.h:9:16:
fatal error: stdint.h: No such file or directory

| # include_next <stdint.h>
                 ^~~~~~~~~~
compilation terminated.

By creating a dummy includedir, and removing the previous fix we
allow GCC to be built the same way, unifying the cross compiler
for all targets.

After this fix both TCLIBC=baremetal and TCLIBC=newlib SDKs work
properly.

(From OE-Core rev: 08ff7c87efdf373f1874fcccd9a2a73fc0efef30)

Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandro@enedino.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Alejandro Hernandez Samaniego
2022-01-10 19:50:30 -07:00
committed by Richard Purdie
parent 16110cdca7
commit d4b186c2cf
1 changed files with 4 additions and 4 deletions
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meta/recipes-devtools/gcc/gcc-cross-canadian.inc
+4 -4
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@@ -45,6 +45,9 @@ export WINDRES_FOR_TARGET = "${TARGET_PREFIX}windres"
export ARCH_FLAGS_FOR_TARGET = "--sysroot=${STAGING_DIR_TARGET}"
do_configure () {
if [ ! -d ${RECIPE_SYSROOT}/${target_includedir} ]; then
mkdir -p ${RECIPE_SYSROOT}/${target_includedir}
fi
export CC_FOR_BUILD="${BUILD_CC}"
export CXX_FOR_BUILD="${BUILD_CXX}"
export CFLAGS_FOR_BUILD="${BUILD_CFLAGS}"
@@ -180,9 +183,6 @@ SYSTEMLIBS = "${target_base_libdir}/"
SYSTEMLIBS1 = "${target_libdir}/"
EXTRA_OECONF += "--enable-poison-system-directories"
EXTRA_OECONF:remove:elf = "--with-sysroot=/not/exist"
EXTRA_OECONF:remove:eabi = "--with-sysroot=/not/exist"
EXTRA_OECONF:append:elf = " --without-headers --with-newlib"
EXTRA_OECONF:append:eabi = " --without-headers --with-newlib"
# gcc 4.7 needs -isystem
export ARCH_FLAGS_FOR_TARGET = "--sysroot=${STAGING_DIR_TARGET} -isystem=${target_includedir}"