Re: [PATCH bpf] libbpf: Prevent overriding errno when logging errors

Daniel Borkmann writes: > On 8/13/20 9:52 PM, Toke Høiland-Jørgensen wrote: >> Andrii Nakryiko writes: >>> On Thu, Aug 13, 2020 at 7:29 AM Toke Høiland-Jørgensen >>> wrote: Turns out there were a few more instances where libbpf didn't save the errno before writing an error messa

Re: [PATCH bpf] libbpf: Prevent overriding errno when logging errors

On 8/13/20 9:52 PM, Toke Høiland-Jørgensen wrote: Andrii Nakryiko writes: On Thu, Aug 13, 2020 at 7:29 AM Toke Høiland-Jørgensen wrote: Turns out there were a few more instances where libbpf didn't save the errno before writing an error message, causing errno to be overridden by the printf()

Re: [PATCH bpf] libbpf: Prevent overriding errno when logging errors

Andrii Nakryiko writes: > On Thu, Aug 13, 2020 at 7:29 AM Toke Høiland-Jørgensen > wrote: >> >> Turns out there were a few more instances where libbpf didn't save the >> errno before writing an error message, causing errno to be overridden by >> the printf() return and the error disappearing if

Re: [PATCH bpf] libbpf: Prevent overriding errno when logging errors

On Thu, Aug 13, 2020 at 7:29 AM Toke Høiland-Jørgensen wrote: > > Turns out there were a few more instances where libbpf didn't save the > errno before writing an error message, causing errno to be overridden by > the printf() return and the error disappearing if logging is enabled. > > Signed-off

[PATCH bpf] libbpf: Prevent overriding errno when logging errors

Turns out there were a few more instances where libbpf didn't save the errno before writing an error message, causing errno to be overridden by the printf() return and the error disappearing if logging is enabled. Signed-off-by: Toke Høiland-Jørgensen --- tools/lib/bpf/libbpf.c | 12 +++-