From: Alexey Brodkin Date: Thu, 18 Apr 2019 17:38:45 +0000 (+0300) Subject: package/linux-tools/perf: add dependency on 32-bit sync builtins X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d5edfa6eef6a0e0b124b894be4ce5da4f14c4af7;p=buildroot.git 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 Cc: Thomas Petazzoni [Thomas: drop Config.in comment] Signed-off-by: Thomas Petazzoni --- diff --git a/package/linux-tools/Config.in b/package/linux-tools/Config.in index 4916faa349..90b4825fee 100644 --- a/package/linux-tools/Config.in +++ b/package/linux-tools/Config.in @@ -46,6 +46,7 @@ config BR2_PACKAGE_LINUX_TOOLS_PCI config BR2_PACKAGE_LINUX_TOOLS_PERF bool "perf" select BR2_PACKAGE_LINUX_TOOLS + depends on BR2_TOOLCHAIN_HAS_SYNC_4 help perf (sometimes "Perf Events" or perf tools, originally "Performance Counters for Linux") - is a performance