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| author | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2017-05-21 23:28:48 -0700 |
|---|---|---|
| committer | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2017-05-22 01:55:50 -0700 |
| commit | f7ff175b92df5577aef9caf3fb02f9ff37b822ca (patch) | |
| tree | f66357554a993a848175a0bbeb62016a32a60a35 | |
| parent | cef582350c952bad761476d01ea64bb4087371ce (diff) | |
| download | gperftools-f7ff175b92df5577aef9caf3fb02f9ff37b822ca.tar.gz | |
add configure-time warning on unsupported backtrace capturing
Both libgcc and libc's backtrace() are not really options for stack
trace capturing from inside profiling signal handler. So lets warn
people.
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 59b2467..e0fd96e 100644 --- a/configure.ac +++ b/configure.ac @@ -634,7 +634,7 @@ AC_OUTPUT AS_IF([test "$x86_no_fp_by_default" = yes && test "x$enable_frame_pointers" != xyes && test "x$UNWIND_LIBS" = x && test "x$enable_minimal" != xyes], [AS_IF([test "x$perftools_cv_have_unwind_backtrace" = xyes], - [AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace capturing via libgcc])], + [AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace capturing via libgcc. Expect crashy cpu profiler.])], [AS_IF([test "x$enable_backtrace" = xyes], - [AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace()])], + [AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace(). Expect crashy cpu profiler.])], [AC_MSG_FAILURE([No frame pointers and no libunwind. The compilation will fail])])])]) |