On 7/16/26 03:22, Michael Tokarev wrote:
Package: gcc-15-sh4-linux-gnu
Version: 15.3.0-1cross1
Severity: normal
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: sh4
When trying to build an sh4eb binary, there's a failure at the link stage:
sh4-linux-gnu-gcc -mb vdso.S [other options]
...
sh4-linux-gnu-ld.bfd: unrecognised emulation mode: shelf_linux
Supported emulations: shlelf_linux shlelf_fd
I built big endian binaries fine with 15.1.
I.E.
https://landley.net/bin/toolchains/19-06-2026/sh4eb-linux-musl-cross.tar.xz
built https://landley.net/bin/mkroot/0.8.14/sh4eb.tgz and booted it
under QEMU.
I admit I haven't tried to do a multilib or glibc compiler in ages...
https://landley.net/bin/toolchains/19-06-2026/README
From the specs:
*link_emul_prefix:
sh%{!mb:l}elf
I dunno if this is supposed to be valid or not, and whenever this is a
gcc bug (specs file) or missing support in binutils.
as gets --big option correctly.
Also, using
sh4-linux-gnu-gcc -Wl,-EB -Wa,--big vdso.S
produces a binary, but I dunno (yet) if it is the right one or not.
This is needed for qemu, as it now ships vdso for sh4eb (in assembly
form, so it does not need anything extra) which has to be compiled.
I was using qemu 11.0.0 with my patch to provide 200 megs of memory to
qemu's r2d board:
https://lists.gnu.org/archive/html/qemu-devel/2026-01/msg06318.html
Rob
