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| author | Markus Metzger <markus.t.metzger@intel.com> | 2015-07-28 15:47:40 +0200 |
|---|---|---|
| committer | Markus Metzger <markus.t.metzger@intel.com> | 2015-08-07 10:19:01 +0200 |
| commit | 5599c404621b2d8ac021c1427aee6e8974572042 (patch) | |
| tree | af85eaa5ab37a6be42ba78d1578c46bbf0a1d89f /gdb/configure.ac | |
| parent | 016a3251631341bf4d8fe50966d2b70f8ea69e96 (diff) | |
| download | gdb-5599c404621b2d8ac021c1427aee6e8974572042.zip gdb-5599c404621b2d8ac021c1427aee6e8974572042.tar.gz gdb-5599c404621b2d8ac021c1427aee6e8974572042.tar.bz2 | |
configure: check for perf_event.h version
Intel(R) Processor Trace support requires a recent linux/perf_event.h header.
When GDB is built on an older system, Intel(R) Processor Trace will not be
available and there is no indication in the configure and build log as to
what went wrong.
Check for a compatible linux/perf_event.h at configure-time.
gdb/
* configure.ac: Check for PERF_ATTR_SIZE_VER5 in linux/perf_event.h
* configure: Regenerate.
Diffstat (limited to 'gdb/configure.ac')
| -rw-r--r-- | gdb/configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gdb/configure.ac b/gdb/configure.ac index 905c27b..16bcd56 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -1252,6 +1252,20 @@ if test "${with_intel_pt}" = no; then AC_MSG_WARN([Intel(R) Processor Trace support disabled; some features may be unavailable.]) HAVE_LIBIPT=no else + AC_PREPROC_IFELSE(AC_LANG_SOURCE([[ +#include <linux/perf_event.h> +#ifndef PERF_ATTR_SIZE_VER5 +# error +#endif + ]]), [perf_event=yes], [perf_event=no]) + if test "$perf_event" != yes; then + if test "$with_intel_pt" = yes; then + AC_MSG_ERROR([linux/perf_event.h missing or too old]) + else + AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.]) + fi + fi + AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);]) if test "$HAVE_LIBIPT" != yes; then if test "$with_intel_pt" = yes; then |