On Thu, 20 Aug 2026 11:32:50 +0200
Thomas Weißschuh <[email protected]> wrote:
> Extend the existing parisc support to also handle 64-bit mode.
>
> Some peculiarities:
> * The nonstandard ftruncate64 system call requires a workaround.
> * The linker defaults to main() as entry point, which needs to be
> switched to _start() explicitly.
> * The linker defaults to dynamic linking, which needs to be disabled
> explicitly.
> * With the default -Os, gcc does not use 64-bit multiplication
> instructions, requiring libgcc. Use -O2 instead.
> * There is no qemu-user available.
> * CONFIG_COMPAT needs to be disabled to avoid build errors due to a
> missing 32-bit vDSO compiler.
...
> diff --git a/tools/testing/selftests/nolibc/run-tests.sh
> b/tools/testing/selftests/nolibc/run-tests.sh
> index 3da806e2b302..a50a47d9df2c 100755
> --- a/tools/testing/selftests/nolibc/run-tests.sh
> +++ b/tools/testing/selftests/nolibc/run-tests.sh
> @@ -29,7 +29,7 @@ all_archs=(
> sparc32 sparc64
> m68k
> sh4
> - parisc32
> + parisc32 parisc64
> alpha
> hexagon
> )
> @@ -122,6 +122,7 @@ crosstool_arch() {
> sparc*) echo sparc64;;
> x32*) echo x86_64;;
> parisc32) echo hppa;;
> + parisc64) echo hppa64;;
> *) echo "$1";;
> esac
> }
> @@ -206,11 +207,11 @@ test_arch() {
> exit 1
> esac
> printf '%-15s' "$arch:"
> - if [ "$arch" = "m68k" -o "$arch" = "sh4" -o "$arch" = "openrisc" -o
> "$arch" = "parisc32" -o "$arch" = "alpha" ] && [ "$llvm" = "1" ]; then
> + if [ "$arch" = "m68k" -o "$arch" = "sh4" -o "$arch" = "openrisc" -o
> "$arch" = "parisc*" -o "$arch" = "alpha" ] && [ "$llvm" = "1" ]; then
Would it be better to put the llvm condition first?
> echo "Unsupported configuration"
"Unsupported compiler" ?
> return
> fi
> - if [ "$arch" = "x32" ] && [ "$test_mode" = "user" ]; then
> + if [ "$arch" = "x32" -o "$arch" = "parisc64" ] && [ "$test_mode" =
> "user" ]; then
Ditto.
David
> echo "Unsupported configuration"
> return
> fi
>
> ---
> base-commit: 7f4233794df172ab1d286dc0fbd70da2cc837654
> change-id: 20260407-nolibc-parisc64-3ca0547c2af9
>
> Best regards,
> --
> Thomas Weißschuh <[email protected]>
>
>
