From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- tools/include/nolibc/errno.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 tools/include/nolibc/errno.h (limited to 'tools/include/nolibc/errno.h') diff --git a/tools/include/nolibc/errno.h b/tools/include/nolibc/errno.h new file mode 100644 index 000000000..a2325596d --- /dev/null +++ b/tools/include/nolibc/errno.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * Minimal errno definitions for NOLIBC + * Copyright (C) 2017-2022 Willy Tarreau + */ + +/* make sure to include all global symbols */ +#include "nolibc.h" + +#ifndef _NOLIBC_ERRNO_H +#define _NOLIBC_ERRNO_H + +#include + +#ifndef NOLIBC_IGNORE_ERRNO +#define SET_ERRNO(v) do { errno = (v); } while (0) +int errno __attribute__((weak)); +char *program_invocation_name __attribute__((weak)) = (char *)""; +char *program_invocation_short_name __attribute__((weak)) = (char *)""; +#else +#define SET_ERRNO(v) do { } while (0) +#define program_invocation_name "" +#define program_invocation_short_name "" +#endif + + +/* errno codes all ensure that they will not conflict with a valid pointer + * because they all correspond to the highest addressable memory page. + */ +#define MAX_ERRNO 4095 + +#endif /* _NOLIBC_ERRNO_H */ -- cgit v1.3.1