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| author | Mikael Pettersson <[email protected]> | 2015-02-08 21:19:35 +0100 |
|---|---|---|
| committer | Zandra Hird <[email protected]> | 2015-02-19 09:46:32 +0100 |
| commit | cfa9229ba1eb8851caecfc92ca1bc9813fb1d567 (patch) | |
| tree | 2009b00c72b79734f5c433ab6afb5eae544607f3 /erts/configure.in | |
| parent | 9d8327c62a981bcc436e5f9fc5466f5539dce3dc (diff) | |
| download | otp-cfa9229ba1eb8851caecfc92ca1bc9813fb1d567.tar.gz otp-cfa9229ba1eb8851caecfc92ca1bc9813fb1d567.tar.bz2 otp-cfa9229ba1eb8851caecfc92ca1bc9813fb1d567.zip | |
remove perfctr support
Perfctr is a Linux kernel extension that allows programmatic access
to the performance monitoring counters found in most current CPUs.
However, development of perfctr ceased after 2010, and it cannot be
used with Linux kernels newer than 2.6.32.
Therefore the perfctr support code in the Erlang VM is effectively
dead code, so this patch removes it.
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/erts/configure.in b/erts/configure.in index 7cb6b50708..f248cbe34d 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -264,24 +264,6 @@ AS_HELP_STRING([--enable-m32-build], esac ],enable_m32_build=no) -AC_SUBST(PERFCTR_PATH) -AC_ARG_WITH(perfctr, -AS_HELP_STRING([--with-perfctr=PATH], - [specify location of perfctr include and lib]) -AS_HELP_STRING([--without-perfctr], [don't use perfctr (default)])) - -if test "x$with_perfctr" = "xno" -o "x$with_perfctr" = "x" ; then - PERFCTR_PATH= -else - if test ! -f "$with_perfctr/usr.lib/libperfctr.a" ; then - AC_MSG_ERROR(Invalid path to option --with-perfctr=PATH) - fi - PERFCTR_PATH="$with_perfctr" - AC_DEFINE(USE_PERFCTR,[1], - [Define to enable hrvtime() on Linux systems with perfctr extension]) -fi - - AC_ARG_WITH(dynamic-trace, AS_HELP_STRING([--with-dynamic-trace={dtrace|systemtap}], [specify use of dynamic trace framework, dtrace or systemtap]) @@ -3503,19 +3485,6 @@ fi AC_SUBST(NATIVE_LIBS_ENABLED) # -# Check if HiPE should use a standard installation of perfctr. -# -AC_SUBST(USE_PERFCTR) -if test "x$HIPE_ENABLED" = "xyes" ; then - if test "x$with_perfctr" = "x" ; then - AC_CHECK_LIB(perfctr, vperfctr_info, [USE_PERFCTR=1 - AC_DEFINE(USE_PERFCTR,[1],[Define to enable hrvtime() on Linux systems with perfctr extension])]) - elif test "x$with_perfctr" != "xno" ; then - USE_PERFCTR=1 - fi -fi - -# # Check for working poll(). # AC_MSG_CHECKING([for working poll()]) |