package/linux-tools/perf: add dependency on 32-bit sync builtins
Sync builtins 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> [Thomas: drop Config.in comment] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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@ -46,6 +46,7 @@ config BR2_PACKAGE_LINUX_TOOLS_PCI
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config BR2_PACKAGE_LINUX_TOOLS_PERF
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bool "perf"
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select BR2_PACKAGE_LINUX_TOOLS
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depends on BR2_TOOLCHAIN_HAS_SYNC_4
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help
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perf (sometimes "Perf Events" or perf tools, originally
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"Performance Counters for Linux") - is a performance
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