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Add experimental support for usdt systemtap probes

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Slobodan Predolac 2025-06-09 21:29:55 -07:00 • committed by Guangli Dai
parent 5847516692
commit 711fff750c
5 changed files with 266 additions and 0 deletions
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49
configure.ac
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@ -1681,6 +1681,55 @@ else
fi
AC_SUBST([enable_utrace])
dnl Disable experimental sdt tracing by default.
AC_ARG_ENABLE([experimental-sdt],
[AS_HELP_STRING([--enable-experimental-sdt], [Enable systemtap USDT probes])],
[if test "x$enable_experimental_sdt" = "xno" ; then
enable_experimental_sdt="0"
else
JE_COMPILABLE([systemtap sdt], [
#include <sys/sdt.h>
], [
void foo(int i, void *p) { STAP_PROBE2(jemalloc, test, i, p); }
],
[je_cv_stap_sdt])
if test "x${je_cv_stap_sdt}" = "xyes" ; then
enable_experimental_sdt="1"
elif test "x${abi}" = "xelf" ; then
case "${host}" in
*-*-linux-android*)
case "${host_cpu}" in aarch64|x86_64)
enable_experimental_sdt="2"
;;
esac
;;
*-*-linux*)
case "${host_cpu}" in x86_64|aarch64|arm*)
enable_experimental_sdt="2"
;;
esac
;;
*)
enable_experimental_sdt="0"
AC_MSG_ERROR([Unsupported sdt on this platform])
;;
esac
else
AC_MSG_ERROR([Unsupported sdt on this platform])
fi
fi
],
[enable_experimental_sdt="0"]
)
if test "x$enable_experimental_sdt" = "x1" ; then
AC_DEFINE([JEMALLOC_EXPERIMENTAL_USDT_STAP], [ ], [ ])
elif test "x$enable_experimental_sdt" = "x2"; then
AC_DEFINE([JEMALLOC_EXPERIMENTAL_USDT_CUSTOM], [ ], [ ])
fi
AC_SUBST([enable_experimental_sdt])
dnl Do not support the xmalloc option by default.
AC_ARG_ENABLE([xmalloc],
[AS_HELP_STRING([--enable-xmalloc], [Support xmalloc option])],