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Re: hppa-firmware.img missing build-id
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From: |
Richard W.M. Jones |
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Subject: |
Re: hppa-firmware.img missing build-id |
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Date: |
Tue, 23 Apr 2024 16:02:43 +0100 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Apr 23, 2024 at 10:11:50AM -0400, Cole Robinson wrote:
> Hi,
>
> hppa-firmware.img and hppa-firmware64.img in qemu.git are missing ELF
> build-id annotations. rpm builds on Fedora will error if an ELF binary
> doesn't have build-id:
>
> RPM build errors:
> Missing build-id in
> /tmp/rpmbuild/BUILDROOT/qemu-9.0.0-1.rc2.fc41.x86_64/usr/share/qemu/hppa-firmware.img
> Missing build-id in
> /tmp/rpmbuild/BUILDROOT/qemu-9.0.0-1.rc2.fc41.x86_64/usr/share/qemu/hppa-firmware64.img
> Generating build-id links failed
>
> I didn't hit this with qemu 8.2.* builds FWIW
Discussed in chat, and I think the consensus is to rebuild these
downstream, since we have the cross-compilers available. It requires
adding -Wl,--build-id=sha1 at link time.
FWIW this worked for me on Fedora:
# dnf install /usr/bin/hppa-linux-gnu-gcc
$ pushd roms/seabios-hppa
$ make parisc
$ popd
That didn't actually add the .note.gnu.build-id section though, you
have to add this patch:
diff --git a/Makefile.parisc b/Makefile.parisc
index 36edc0c2..3e0c1812 100644
--- a/Makefile.parisc
+++ b/Makefile.parisc
@@ -168,7 +168,7 @@ $(OUT)hppa-firmware$(BIT_SUFFIX).img: $(OUT)autoconf.h
$(OUT)head.o $(OUT)ccode3
@echo " Linking $@"
$(Q)$(CPP) $(CPPFLAGS) -Isrc -D__ASSEMBLY__ -DBITS=$(BITS)
src/parisc/pafirmware.lds.S -o $(OUT)pafirmware.lds
$(Q)$(CC) $(CFLAGS32FLAT) -c src/version.c -o $(OUT)version.o
- $(Q)$(LD) -N -T $(OUT)pafirmware.lds $(OUT)head.o $(OUT)version.o -X -o
$@ -e startup --as-needed $(OUT)ccode32flat.o $(LIBGCC)
+ $(Q)$(LD) --build-id=sha1 -N -T $(OUT)pafirmware.lds $(OUT)head.o
$(OUT)version.o -X -o $@ -e startup --as-needed $(OUT)ccode32flat.o $(LIBGCC)
################ Kconfig rules
... and then:
$ objdump -sj .note.gnu.build-id ./out/hppa-firmware.img
./out/hppa-firmware.img: file format elf32-big
Contents of section .note.gnu.build-id:
f0000000 00000004 00000014 00000003 474e5500 ............GNU.
f0000010 daabe2dc 4e95a4c2 bad0cc57 e7f63152 ....N......W..1R
f0000020 46274585 F'E.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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