diff options
| author | Ramin Moussavi <ramin.moussavi@yacoub.de> | 2026-08-21 17:18:05 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@amd.com> | 2026-09-01 13:50:37 +0200 |
| commit | 730e01d932496f7bd536fc185d3aab6646dea0f4 (patch) | |
| tree | 0b4e81aa177a1e796ad88a74de1b164325a27262 /arch/microblaze | |
| parent | e44c5ef7a05c5cfc996be1aafedfdee3edd96c4c (diff) | |
| download | linux-next-730e01d932496f7bd536fc185d3aab6646dea0f4.tar.gz linux-next-730e01d932496f7bd536fc185d3aab6646dea0f4.zip | |
microblaze: wire up sigaltstack
sigaltstack is wired to sys_ni_syscall - microblaze is the only
architecture without it - although the microblaze signal delivery code
fully supports the alternate signal stack: get_sigframe() picks the
stack via sigsp(), setup_rt_frame() saves it with __save_altstack() and
sys_rt_sigreturn() calls restore_altstack().
Wire it up to sys_sigaltstack.
Tested on qemu petalogix-s3adsp1800 (microblazeel) with the uClibc-ng
test suite: the five sigaltstack-dependent NPTL tests (tst-cancel20/21,
tst-cancelx20/21, tst-signal6) pass; before this change sigaltstack()
returned ENOSYS.
Assisted-by: Claude:claude-opus-5
Signed-off-by: Ramin Moussavi <ramin.moussavi@yacoub.de>
Tested-by: Waldemar Brodkorb <wbx@openadk.org>
Link: https://patch.msgid.link/20260821151809.1233057-2-ramin.moussavi@yacoub.de
Signed-off-by: Michal Simek <michal.simek@amd.com>
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/kernel/syscalls/syscall.tbl | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl index c55a5c96f49b..76d7cbe2a133 100644 --- a/arch/microblaze/kernel/syscalls/syscall.tbl +++ b/arch/microblaze/kernel/syscalls/syscall.tbl @@ -193,7 +193,7 @@ 183 common getcwd sys_getcwd 184 common capget sys_capget 185 common capset sys_capset -186 common sigaltstack sys_ni_syscall +186 common sigaltstack sys_sigaltstack 187 common sendfile sys_sendfile 188 common getpmsg sys_ni_syscall 189 common putpmsg sys_ni_syscall |