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| author |   Tony Lindgren <tony@atomide.com> | 2018-11-08 09:32:24 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-11-08 09:32:24 -0800 |
| commit | 91e43395820baad80248987608216c35da9df65b (patch) | |
| tree | 29d41d1a036eb1abd6a60f16ad37aa578acd8159 /tools/lib/bpf/str_error.c | |
| parent | ARM: OMAP2+: prm44xx: Fix section annotation on omap44xx_prm_enable_io_wakeup (diff) | |
| parent | ARM: OMAP1: ams-delta: Fix possible use of uninitialized field (diff) | |
| download | linux-dev-91e43395820baad80248987608216c35da9df65b.tar.xz linux-dev-91e43395820baad80248987608216c35da9df65b.zip | |
Merge branch 'fixes-dts' into omap-for-v4.20/fixes
Diffstat (limited to 'tools/lib/bpf/str_error.c')
| -rw-r--r-- | tools/lib/bpf/str_error.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c new file mode 100644 index 000000000000..00e48ac5b806 --- /dev/null +++ b/tools/lib/bpf/str_error.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) +#undef _GNU_SOURCE +#include <string.h> +#include <stdio.h> +#include "str_error.h" + +/* + * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl + * libc, while checking strerror_r() return to avoid having to check this in + * all places calling it. + */ +char *libbpf_strerror_r(int err, char *dst, int len) +{ + int ret = strerror_r(err, dst, len); + if (ret) + snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret); + return dst; +} |