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scripts/ext-toolchain: implement external GCC version detection

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Some package may needs to enable compatibility option based on the GCC
version.

Currently the GCC version is set based on the default value and doesn't
actually reflect the real value provided by the external toolchain if
used.

Fix this by correctly detecting the GCC version in the external
toolchain and set the correct value in CONFIG_GCC_VERSION.

A new option is added in menuconfig to manually set the GCC version if
needed.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2023-10-19 14:19:09 +02:00
parent c0e30b17eb
commit 28420cd67b
No known key found for this signature in database
GPG Key ID: AC001D09ADBFEAD7
3 changed files with 31 additions and 0 deletions
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22
scripts/ext-toolchain.sh
View File

@ -27,6 +27,7 @@ CFLAGS=""
TOOLCHAIN="."
LIBC_TYPE=""
GCC_VERSION=""
# Library specs
@ -199,6 +200,19 @@ find_bins() {
return 1
}
find_gcc_version() {
if [ -f $TOOLCHAIN/info.mk ]; then
GCC_VERSION=$(grep GCC_VERSION $TOOLCHAIN/info.mk | sed 's/GCC_VERSION=//')
return 0
fi
echo "Warning! Can't find info.mk, trying to detect with alternative way."
# Very fragile detection
GCC_VERSION=$(find $TOOLCHAIN/bin | grep -oE "gcc-[0-9]+\.[0-9]+\.[0-9]+$" | \
head -1 | sed 's/gcc-//')
}
wrap_bin_cc() {
local out="$1"
@ -383,6 +397,13 @@ print_config() {
return 1
fi
if [ -n "$GCC_VERSION" ]; then
echo "CONFIG_EXTERNAL_GCC_VERSION=\"$GCC_VERSION\"" >> "$config"
else
echo "Can't detect GCC version. Aborting!" >&2
return 1
fi
local lib
for lib in C RT PTHREAD GCC STDCPP SSP GFORTRAN GOMP; do
local file
@ -564,6 +585,7 @@ while [ -n "$1" ]; do
--config)
if probe_cc; then
probe_libc
find_gcc_version
print_config "$1"
exit $?
fi

8
toolchain/Config.in
View File

@ -150,6 +150,14 @@ menuconfig EXTERNAL_TOOLCHAIN
endchoice
config EXTERNAL_GCC_VERSION
string
prompt "External Toolchain GCC Version" if DEVEL
depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
help
Manually specify the GCC version used by the selected
external toolchain.
config TOOLCHAIN_LIBC
string
depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN

1
toolchain/gcc/Config.version
View File

@ -8,6 +8,7 @@ config GCC_VERSION_13
config GCC_VERSION
string
default EXTERNAL_GCC_VERSION if EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
default "11.3.0" if GCC_VERSION_11
default "13.2.0" if GCC_VERSION_13
default "12.3.0"