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| author | fanquake <fanquake@gmail.com> | 2021-06-14 13:35:05 +0800 |
|---|---|---|
| committer | fanquake <fanquake@gmail.com> | 2021-06-16 10:16:03 +0800 |
| commit | 8f7704d0321a71c1691837a6bd3b4e05f84d3031 (patch) | |
| tree | 2b1669671a260c1e4a38ddc69ea8d9c296fc2012 /configure.ac | |
| parent | de5512e28df220990ad123b914167aadd6f50979 (diff) | |
| download | bitcoin-8f7704d0321a71c1691837a6bd3b4e05f84d3031.tar.xz | |
build: improve detection of eBPF support
Just checking for the `sys/sdt.h` header isn't enough, as systems like
macOS have the header, but it doesn't actually have the dtrace probes,
which leads to compile failures.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/configure.ac b/configure.ac index aaa932b093..77cb5dd326 100644 --- a/configure.ac +++ b/configure.ac @@ -1357,13 +1357,15 @@ if test x$enable_wallet != xno; then fi if test x$use_ebpf != xno; then - AC_CHECK_HEADER([sys/sdt.h], [have_sdt=yes], [have_sdt=no]) -else - have_sdt=no -fi - -if test x$have_sdt = xyes; then - AC_DEFINE([ENABLE_TRACING], [1], [Define to 1 to enable eBPF user static defined tracepoints]) + AC_MSG_CHECKING([whether eBPF tracepoints are supported]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM( + [#include <sys/sdt.h>], + [DTRACE_PROBE("context", "event");] + )], + [AC_MSG_RESULT(yes); have_sdt=yes; AC_DEFINE([ENABLE_TRACING], [1], [Define to 1 to enable eBPF user static defined tracepoints])], + [AC_MSG_RESULT(no); have_sdt=no;] + ) fi dnl Check for libminiupnpc (optional) |