On Sun, Apr 26, 2026 at 04:29:32PM +0530, Mukesh Kumar Chaurasiya (IBM) wrote: > Enabling rust support for ppc64le. > > Tested on pseries Power11: > ╰─❯ dmesg | grep rust > [ 0.225728] Initialise system trusted keyrings > [ 0.270961] rust_minimal: Rust minimal sample (init) > [ 0.270968] rust_minimal: Am I built-in? true > [ 0.270974] rust_minimal: test_parameter: 1 > [ 0.270983] rust_misc_device: Initialising Rust Misc Device Sample > [ 0.271012] rust_print: Rust printing macros sample (init) > [ 0.271019] rust_print: Emergency message (level 0) without args > [ 0.271023] rust_print: Alert message (level 1) without args > [ 0.271026] rust_print: Critical message (level 2) without args > [ 0.271030] rust_print: Error message (level 3) without args > [ 0.271033] rust_print: Warning message (level 4) without args > [ 0.271037] rust_print: Notice message (level 5) without args > [ 0.271040] rust_print: Info message (level 6) without args > [ 0.271043] rust_print: A line that is continued without args > [ 0.271054] rust_print: Emergency message (level 0) with args > [ 0.271064] rust_print: Alert message (level 1) with args > [ 0.271072] rust_print: Critical message (level 2) with args > [ 0.271077] rust_print: Error message (level 3) with args > [ 0.271083] rust_print: Warning message (level 4) with args > [ 0.271091] rust_print: Notice message (level 5) with args > [ 0.271097] rust_print: Info message (level 6) with args > [ 0.271102] rust_print: A line that is continued with args > [ 0.271110] rust_print: 1 > [ 0.271113] rust_print: "hello, world" > [ 0.271121] rust_print: [samples/rust/rust_print_main.rs:35:5] c = "hello, > world" > [ 0.271129] rust_print: Arc<dyn Display> says 42 > [ 0.271130] rust_print: Arc<dyn Display> says hello, world > [ 0.271136] rust_print: "hello, world" > [ 0.271198] usbcore: registered new interface driver rust_driver_usb > [ 0.271207] rust_faux_driver: Initialising Rust Faux Device Sample > [ 0.271227] faux_driver rust-faux-sample-device: Hello from faux device! > [ 0.271297] rust_configfs: Rust configfs sample (init) > > Reviewed-by: Link Mauve <[email protected]> > Tested-by: Link Mauve <[email protected]> > Reviewed-by: Christophe Leroy (CS GROUP) <[email protected]> > Tested-by: Venkat Rao Bagalkote <[email protected]> > Link: https://github.com/Rust-for-Linux/linux/issues/105 > Link: https://github.com/linuxppc/issues/issues/451 > Acked-by: Gary Guo <[email protected]> > Signed-off-by: Mukesh Kumar Chaurasiya (IBM) <[email protected]> > --- Upstream issue for powerpc64 and powerpc64le target. Link: https://github.com/rust-lang/compiler-team/issues/987 Link: https://github.com/rust-lang/compiler-team/issues/988
Regards, Mukesh > arch/powerpc/Kconfig | 1 + > arch/powerpc/Makefile | 7 ++++++- > rust/Makefile | 6 ++++++ > 3 files changed, 13 insertions(+), 1 deletion(-) > > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index 4ac897b650d4..2e3065bce9cd 100644 > --- a/arch/powerpc/Kconfig > +++ b/arch/powerpc/Kconfig > @@ -286,6 +286,7 @@ config PPC > select HAVE_RELIABLE_STACKTRACE > select HAVE_RSEQ > select HAVE_RUST if PPC32 > + select HAVE_RUST if PPC64 && CPU_LITTLE_ENDIAN > select HAVE_SAMPLE_FTRACE_DIRECT if > HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS > select HAVE_SAMPLE_FTRACE_DIRECT_MULTI if > HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS > select HAVE_SETUP_PER_CPU_AREA if PPC64 > diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile > index 589613eaa5dc..9385db478c59 100644 > --- a/arch/powerpc/Makefile > +++ b/arch/powerpc/Makefile > @@ -61,7 +61,12 @@ else > KBUILD_LDFLAGS_MODULE += $(objtree)/arch/powerpc/lib/crtsavres.o > endif > > -KBUILD_RUSTFLAGS += --target=powerpc-unknown-linux-gnu > +ifdef CONFIG_PPC64 > +KBUILD_RUSTFLAGS += --target=powerpc64le-unknown-linux-gnu > +KBUILD_RUSTFLAGS += -Ctarget-feature=-mma,-vsx,-hard-float,-altivec > +else > +KBUILD_RUSTFLAGS += --target=powerpc-unknown-linux-gnu > +endif > > ifdef CONFIG_CPU_LITTLE_ENDIAN > KBUILD_CPPFLAGS += -mlittle-endian > diff --git a/rust/Makefile b/rust/Makefile > index 54096ce8a675..068b6fc3e0aa 100644 > --- a/rust/Makefile > +++ b/rust/Makefile > @@ -408,7 +408,13 @@ BINDGEN_TARGET_x86 := x86_64-linux-gnu > BINDGEN_TARGET_arm64 := aarch64-linux-gnu > BINDGEN_TARGET_arm := arm-linux-gnueabi > BINDGEN_TARGET_loongarch := loongarch64-linux-gnusf > + > +ifdef CONFIG_PPC64 > +BINDGEN_TARGET_powerpc := powerpc64le-linux-gnu > +else > BINDGEN_TARGET_powerpc := powerpc-linux-gnu > +endif > + > BINDGEN_TARGET_um := $(BINDGEN_TARGET_$(SUBARCH)) > BINDGEN_TARGET := $(BINDGEN_TARGET_$(SRCARCH)) > > -- > 2.53.0 >
