linux-toradex.git/tools/testing/selftests/nolibc, branch master

selftests/nolibc: test against -Wwrite-strings

2026-05-26T19:06:26+00:00

Users may use this warning when building their own applications.
Make sure that nolibc does not trigger any such warnings.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260525-nolibc-write-strings-v2-3-ab5cc16c7b23@weissschuh.net

selftests/nolibc: use mutable buffer for execve() argv string

2026-05-26T19:06:18+00:00

The existing code would trigger a warning under -Wwrite-strings which is
about to be enabled. Use a mutable buffer instead. While in this
specific case, casting away the 'const' would be fine, let's avoid casts
which are not really necessary.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260525-nolibc-write-strings-v2-2-ab5cc16c7b23@weissschuh.net

tools/nolibc: add ftruncate()

2026-05-24T21:58:04+00:00

On architectures with 32-bit longs, call the compat syscall
__NR_ftruncate64. As off_t is 64-bit it must be split into 2 registers.
Unlike llseek() which passes the high and low parts in explicitly named
arguments, the order here is endian independent.

Some architectures (arm, mips, ppc) require this pair of registers to
be aligned to an even register, so add custom _sys_ftruncate64()
wrappers for those.

A test case for ftruncate is added which validates negative length or
invalid fd return the appropriate error, and checks the length is
correct on success.

Co-developed-by: Jordan Richards 
Signed-off-by: Jordan Richards 
Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Reviewed-by: Daniel Palmer 
Link: https://patch.msgid.link/20260521-nolibc-ftruncate-v1-3-5384a83b2402@weissschuh.net

selftests/nolibc: enable CONFIG_TMPFS for sparc32

2026-05-24T21:56:45+00:00

An upcoming selftest will use memfd_create() which require tmpfs.

Enable that.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Reviewed-by: Daniel Palmer 
Link: https://patch.msgid.link/20260521-nolibc-ftruncate-v1-1-5384a83b2402@weissschuh.net

selftests/nolibc: test open mode handling

2026-05-14T15:41:22+00:00

Add a selftest for the new O_TMPFILE open mode handling.
While O_CREAT or openat() are not tested, the code is the same,
so assume these also work.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260514-nolibc-open-tmpfile-v2-4-b4c6c5efa266@weissschuh.net

tools/nolibc: add support for 32-bit parisc

2026-05-03T14:39:54+00:00

Extend nolibc to target the 32-bit parisc architecture.
64-bit is not yet supported.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch/msgid.link/20260428-nolibc-hppa-v5-2-d843d573111a@weissschuh.net

selftests/nolibc: avoid function pointer comparisons

2026-05-03T14:37:13+00:00

The upcoming parisc support would require libgcc to implement function
pointer comparisons. As we try to avoid the libgcc dependency rework
the logic to work without such comparisons.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260428-nolibc-hppa-v5-1-d843d573111a@weissschuh.net

tools/nolibc: add support for OpenRISC / or1k

2026-05-03T14:34:58+00:00

Add support for OpenRISC / or1k to nolibc.

_start() uses the same wrapper construct as in arch-sh.h.
libgcc is necessary as OpenRISC is missing 64-bit multiplication.

Signed-off-by: Thomas Weißschuh 
Acked-by: Stafford Horne 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260429-nolibc-openrisc-v2-1-8d7d7a2f3fec@weissschuh.net

selftests/nolibc: use vmlinux for MIPS tests

2026-05-03T14:32:51+00:00

QEMU for MIPS can also load 'vmlinux'. Slim down the table by using
that from the fallback.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260429-nolibc-qemu-arch-v1-7-a2ca07eab297@weissschuh.net

selftests/nolibc: trim IMAGE mappings

2026-05-03T14:32:46+00:00

For many configurations QEMU_ARCH is simply 'vmlinux'.
Slim down the table by automatically falling back to 'vmlinux'.

Signed-off-by: Thomas Weißschuh 
Acked-by: Willy Tarreau 
Link: https://patch.msgid.link/20260429-nolibc-qemu-arch-v1-6-a2ca07eab297@weissschuh.net