From: Peter Korsgaard <peter@korsgaard.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2] linux-tools/perf: Add dependency on 32-bit atomics
Date: Wed, 24 Apr 2019 17:30:34 +0200 [thread overview]
Message-ID: <87d0lbctet.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <20190418173845.14495-1-abrodkin@synopsys.com> (Alexey Brodkin's message of "Thu, 18 Apr 2019 20:38:45 +0300")
>>>>> "Alexey" == Alexey Brodkin <Alexey.Brodkin@synopsys.com> writes:
> Atomic ops are strictly required by perf utility as it uses
> atomic_xxx() functions.
> Otherwise building fails like that:
> |.../output/host/opt/ext-toolchain/bin/../lib/gcc/arc-snps-linux-uclibc/8.2.1/../../../../arc-snps-linux-uclibc/bin/ld:
> |.../output/build/linux-5.0.7/tools/perf/libperf.a(libperf-in.o): in function `atomic_cmpxchg':
> |.../output/build/linux-5.0.7/tools/include/asm-generic/atomic-gcc.h:69: undefined reference to `__sync_val_compare_and_swap_4'
> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> ---
> Changes v1 -> v2:
> * Depend on generic BR2_TOOLCHAIN_HAS_SYNC_4
Committed to 2019.02.x, thanks.
--
Bye, Peter Korsgaard
prev parent reply other threads:[~2019-04-24 15:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 17:38 [Buildroot] [PATCH v2] linux-tools/perf: Add dependency on 32-bit atomics Alexey Brodkin
2019-04-20 13:50 ` Thomas Petazzoni
2019-04-24 15:30 ` Peter Korsgaard [this message]
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