On Sat, May 8, 2021 at 1:30 AM Alejandro Hernandez Samaniego <[email protected]> wrote: > > Add support for MACHINE=qemuriscv64. > > $ runqemu nographic > > BIOS: > [tmp/deploy/images/qemuriscv64/baremetal-helloworld-image-qemuriscv64.elf] > MACHINE: [qemuriscv64] > > runqemu - INFO - Running > tmp/work/x86_64-linux/qemu-helper-native/1.0-r1/recipe-sysroot-native/usr/bin/qemu-system-riscv64 > > Hello OpenEmbedded on RISC-V 64! > > Signed-off-by: Alejandro Enedino Hernandez Samaniego <[email protected]> > --- > .../baremetal-examples/baremetal-helloworld_git.bb | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > diff --git > a/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb > > b/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb > index ee945c1ff0..3b7b8193a7 100644 > --- > a/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb > +++ > b/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb > @@ -4,7 +4,7 @@ DESCRIPTION = "These are introductory examples to showcase > the use of QEMU to ru > LICENSE = "MIT" > LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449" > > -SRCREV = "99f4fa4a3b266b42b52af302610b0f4f429ba5e3" > +SRCREV = "0bf9ea216e6f76be50726a3a74e527b7bbb0ad93" > PV = "0.1+git${SRCPV}" > > SRC_URI = > "git://github.com/aehs29/baremetal-helloqemu.git;protocol=https;branch=master" > @@ -28,12 +28,13 @@ inherit baremetal-image > # machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57 > # but the examples can also be run on other architectures/machines > # such as vexpress-a15 by overriding the setting on the machine.conf > -COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64" > +COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64|qemuriscv64" > > BAREMETAL_QEMUARCH ?= "" > BAREMETAL_QEMUARCH_qemuarmv5 = "versatile" > BAREMETAL_QEMUARCH_qemuarm = "arm" > BAREMETAL_QEMUARCH_qemuarm64 = "aarch64" > +BAREMETAL_QEMUARCH_qemuriscv64 = "riscv64" > > EXTRA_OEMAKE_append = " QEMUARCH=${BAREMETAL_QEMUARCH} V=1" > > @@ -49,3 +50,10 @@ FILES_${PN} += " \ > ${base_libdir}/firmware/${BAREMETAL_BINNAME}.bin \ > ${base_libdir}/firmware/${BAREMETAL_BINNAME}.elf \ > " > + > +# RISC-V tunes set the BIOS, redefine since runqemu jumps there > +QB_DEFAULT_BIOS_qemuriscv64 = "${IMAGE_LINK_NAME}.elf" > + > +# Use the medium-any code model for the RISC-V 64 bit implementation, > +# since medlow can only access addresses below 0x80000000 > +CFLAGS_append_qemuriscv64 = " -mcmodel=medany"
I would have thought medlow would be appropriate for baremetal apps. Since this is a sample app we should try to use good defaults as it will serve as template. having no access below 0x80000000 should not be such a hard limitation or is it so ? > -- > 2.25.1 > > > >
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