From: Leo Yan <leo.yan@arm.com>
To: James Clark <james.clark@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org,
linux-perf-users@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@kernel.org>,
John Garry <john.g.garry@oracle.com>,
Will Deacon <will@kernel.org>, Mike Leach <mike.leach@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Al Grant <al.grant@arm.com>,
Paschalis Mpeis <paschalis.mpeis@arm.com>,
Amir Ayupov <aaupov@fb.com>
Subject: Re: [PATCH v9 9/9] perf test: Add Arm CoreSight callchain test
Date: Wed, 17 Jun 2026 12:11:49 +0100 [thread overview]
Message-ID: <20260617111149.GC31870@e132581.arm.com> (raw)
In-Reply-To: <00183ce3-e387-4ca3-9eb8-67aa6a1221e5@linaro.org>
On Wed, Jun 17, 2026 at 09:38:42AM +0100, James Clark wrote:
[...]
> > +noinline void callchain_do_syscall(void)
> > +{
> > + syscall(SYS_getpid);
>
> I get this error when compiling for x86, but it works on Arm:
>
> tests/workloads/callchain.c:17:10: error: use of undeclared identifier
> 'SYS_getpid'; did you mean '__getpgid'?
> syscall(SYS_getpid);
> ^~~~~~~~~~
> __getpgid
> /usr/include/unistd.h:659:16: note: '__getpgid' declared here
> extern __pid_t __getpgid (__pid_t __pid) __THROW;
Thanks for finding this.
This is not the issue for program itself actually, it contains
tools/arch/x86/include/uapi/asm/unistd_64.h rather than uAPI headers
provided in toolchain or kernel.
At current stage, we can simply change to syscall(SYS_gettid) to
workaround the issue.
next prev parent reply other threads:[~2026-06-17 11:11 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-16 14:51 [PATCH v9 0/9] perf cs-etm: Support thread stack and callchain Leo Yan
2026-06-16 14:51 ` [PATCH v9 1/9] perf cs-etm: Fix thread leaks on trace queue init failure Leo Yan
2026-06-17 10:07 ` James Clark
2026-06-16 14:51 ` [PATCH v9 2/9] perf cs-etm: Filter synthesized branch samples Leo Yan
2026-06-16 14:51 ` [PATCH v9 3/9] perf cs-etm: Decode ETE exception packets Leo Yan
2026-06-16 14:51 ` [PATCH v9 4/9] perf cs-etm: Refactor instruction size handling Leo Yan
2026-06-16 14:51 ` [PATCH v9 5/9] perf cs-etm: Use thread-stack for last branch entries Leo Yan
2026-06-16 15:13 ` sashiko-bot
2026-06-16 15:42 ` Leo Yan
2026-06-16 14:51 ` [PATCH v9 6/9] perf cs-etm: Flush thread stacks after decoder reset Leo Yan
2026-06-16 15:10 ` sashiko-bot
2026-06-16 14:51 ` [PATCH v9 7/9] perf cs-etm: Support call indentation Leo Yan
2026-06-16 15:08 ` sashiko-bot
2026-06-16 14:51 ` [PATCH v9 8/9] perf cs-etm: Synthesize callchains for instruction samples Leo Yan
2026-06-16 15:12 ` sashiko-bot
2026-06-16 14:51 ` [PATCH v9 9/9] perf test: Add Arm CoreSight callchain test Leo Yan
2026-06-16 15:08 ` sashiko-bot
2026-06-17 8:38 ` James Clark
2026-06-17 11:11 ` Leo Yan [this message]
2026-06-17 10:03 ` James Clark
2026-06-17 12:33 ` Leo Yan
2026-06-17 15:08 ` Leo Yan
2026-06-17 10:06 ` [PATCH v9 0/9] perf cs-etm: Support thread stack and callchain James Clark
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