On Fri 17 Apr 12:43 PDT 2020, Cl?ment Leger wrote:
> ----- On 17 Apr, 2020, at 21:38, Mathieu Poirier mathieu.poirier@xxxxxxxxxx wrote:
>
> > On Fri, Apr 10, 2020 at 12:24:32PM +0200, Clement Leger wrote:
> >> This function allows drivers to correctly setup the coredump output
> >> elf information.
> >>
> >> Signed-off-by: Clement Leger <cleger@xxxxxxxxx>
> >> ---
> >> drivers/remoteproc/remoteproc_core.c | 32 ++++++++++++++++++++--
> >> drivers/remoteproc/remoteproc_elf_loader.c | 3 --
> >> include/linux/remoteproc.h | 2 ++
> >> 3 files changed, 32 insertions(+), 5 deletions(-)
> >>
> >> diff --git a/drivers/remoteproc/remoteproc_core.c
> >> b/drivers/remoteproc/remoteproc_core.c
> >> index a9ac1d01e09b..382443bab583 100644
> >> --- a/drivers/remoteproc/remoteproc_core.c
> >> +++ b/drivers/remoteproc/remoteproc_core.c
> >> @@ -1562,6 +1562,28 @@ int rproc_coredump_add_custom_segment(struct rproc
> >> *rproc,
> >> }
> >> EXPORT_SYMBOL(rproc_coredump_add_custom_segment);
> >>
> >> +/**
> >> + * rproc_coredump_set_elf_info() - set coredump elf information
> >> + * @rproc: handle of a remote processor
> >> + * @class: elf class for coredump elf file
> >> + * @size: elf machine for coredump elf file
>
> I just noticed that there is a typo, this should be "machine" and not "size".
> Let me know if you'll fix it when applying.
>
Thanks for noticing, I fixed this up and applied the two patches.
Thanks,
Bjorn
> Thanks,
>
> Clément
>
> >> + *
> >> + * Set elf information which will be used for coredump elf file.
> >> + *
> >> + * Return: 0 on success, negative errno on error.
> >> + */
> >> +int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine)
> >> +{
> >> + if (class != ELFCLASS64 && class != ELFCLASS32)
> >> + return -EINVAL;
> >> +
> >> + rproc->elf_class = class;
> >> + rproc->elf_machine = machine;
> >> +
> >> + return 0;
> >> +}
> >> +EXPORT_SYMBOL(rproc_coredump_set_elf_info);
> >> +
> >> /**
> >> * rproc_coredump() - perform coredump
> >> * @rproc: rproc handle
> >> @@ -1584,6 +1606,11 @@ static void rproc_coredump(struct rproc *rproc)
> >> if (list_empty(&rproc->dump_segments))
> >> return;
> >>
> >> + if (class == ELFCLASSNONE) {
> >> + dev_err(&rproc->dev, "Elf class is not set\n");
> >> + return;
> >> + }
> >> +
> >> data_size = elf_size_of_hdr(class);
> >> list_for_each_entry(segment, &rproc->dump_segments, node) {
> >> data_size += elf_size_of_phdr(class) + segment->size;
> >> @@ -1602,7 +1629,7 @@ static void rproc_coredump(struct rproc *rproc)
> >> elf_hdr_init_ident(ehdr, class);
> >>
> >> elf_hdr_set_e_type(class, ehdr, ET_CORE);
> >> - elf_hdr_set_e_machine(class, ehdr, EM_NONE);
> >> + elf_hdr_set_e_machine(class, ehdr, rproc->elf_machine);
> >> elf_hdr_set_e_version(class, ehdr, EV_CURRENT);
> >> elf_hdr_set_e_entry(class, ehdr, rproc->bootaddr);
> >> elf_hdr_set_e_phoff(class, ehdr, elf_size_of_hdr(class));
> >> @@ -2043,7 +2070,8 @@ struct rproc *rproc_alloc(struct device *dev, const char
> >> *name,
> >> rproc->name = name;
> >> rproc->priv = &rproc[1];
> >> rproc->auto_boot = true;
> >> - rproc->elf_class = ELFCLASS32;
> >> + rproc->elf_class = ELFCLASSNONE;
> >> + rproc->elf_machine = EM_NONE;
> >>
> >> device_initialize(&rproc->dev);
> >> rproc->dev.parent = dev;
> >> diff --git a/drivers/remoteproc/remoteproc_elf_loader.c
> >> b/drivers/remoteproc/remoteproc_elf_loader.c
> >> index 16e2c496fd45..4869fb7d8fe4 100644
> >> --- a/drivers/remoteproc/remoteproc_elf_loader.c
> >> +++ b/drivers/remoteproc/remoteproc_elf_loader.c
> >> @@ -248,9 +248,6 @@ int rproc_elf_load_segments(struct rproc *rproc, const
> >> struct firmware *fw)
> >> memset(ptr + filesz, 0, memsz - filesz);
> >> }
> >>
> >> - if (ret == 0)
> >> - rproc->elf_class = class;
> >> -
> >> return ret;
> >> }
> >> EXPORT_SYMBOL(rproc_elf_load_segments);
> >> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
> >> index ed127b2d35ca..d67eb5a40476 100644
> >> --- a/include/linux/remoteproc.h
> >> +++ b/include/linux/remoteproc.h
> >> @@ -515,6 +515,7 @@ struct rproc {
> >> struct list_head dump_segments;
> >> int nb_vdev;
> >> u8 elf_class;
> >> + u16 elf_machine;
> >> };
> >
> > Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> >
> >>
> >> /**
> >> @@ -619,6 +620,7 @@ int rproc_coredump_add_custom_segment(struct rproc *rproc,
> >> struct rproc_dump_segment *segment,
> >> void *dest),
> >> void *priv);
> >> +int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine);
> >>
> >> static inline struct rproc_vdev *vdev_to_rvdev(struct virtio_device *vdev)
> >> {
> >> --
> >> 2.17.1
