config, btrace: check for pt_insn_event in libipt
Version 2 of libipt adds an event system to instruction flow decoders and deprecates indicating events via flags in struct pt_insn. Add configuration checks to determine which version we have. gdb/ * configure.ac: Check for pt_insn_event, struct pt_insn.enabled, and struct pt_insn.resynced. * configure: Regenerated. * config.in: Regenerated.
This commit is contained in:
Markus Metzger
parent
5b4a1ff337
commit
c56ccc05b2
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@ -1,3 +1,10 @@
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2017-05-31 Markus Metzger <markus.t.metzger@intel.com>
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* configure.ac: Check for pt_insn_event, struct pt_insn.enabled,
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and struct pt_insn.resynced.
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* configure: Regenerated.
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* config.in: Regenerated.
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2017-05-30 Tim Wiederhake <tim.wiederhake@intel.com>
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* btrace.c (ftrace_find_call_by_number): New function.
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@ -381,6 +381,9 @@
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/* Define if sys/ptrace.h defines the PT_GETXMMREGS request. */
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#undef HAVE_PT_GETXMMREGS
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/* Define to 1 if you have the `pt_insn_event' function. */
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#undef HAVE_PT_INSN_EVENT
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/* Define to 1 if you have the `pwrite' function. */
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#undef HAVE_PWRITE
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@ -462,6 +465,12 @@
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/* Define to 1 if `struct ptrace_lwpinfo' is a member of `pl_tdname'. */
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#undef HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME
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/* Define to 1 if `struct pt_insn' is a member of `enabled'. */
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#undef HAVE_STRUCT_PT_INSN_ENABLED
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/* Define to 1 if `struct pt_insn' is a member of `resynced'. */
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#undef HAVE_STRUCT_PT_INSN_RESYNCED
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/* Define to 1 if your system has struct reg in <machine/reg.h>. */
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#undef HAVE_STRUCT_REG
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@ -2248,6 +2248,63 @@ $as_echo "$ac_res" >&6; }
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} # ac_fn_c_check_func
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# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
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# ----------------------------------------------------
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# Tries to find if the field MEMBER exists in type AGGR, after including
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# INCLUDES, setting cache variable VAR accordingly.
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ac_fn_c_check_member ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
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$as_echo_n "checking for $2.$3... " >&6; }
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if { as_var=$4; eval "test \"\${$as_var+set}\" = set"; }; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$5
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int
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main ()
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{
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static $2 ac_aggr;
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if (ac_aggr.$3)
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return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$4=yes"
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$5
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int
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main ()
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{
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static $2 ac_aggr;
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if (sizeof ac_aggr.$3)
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return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$4=yes"
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else
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eval "$4=no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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eval ac_res=\$$4
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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} # ac_fn_c_check_member
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# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
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# -------------------------------------------
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# Tests whether TYPE exists after having included INCLUDES, setting cache
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@ -2346,63 +2403,6 @@ $as_echo "$ac_res" >&6; }
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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} # ac_fn_c_check_decl
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# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
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# ----------------------------------------------------
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# Tries to find if the field MEMBER exists in type AGGR, after including
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# INCLUDES, setting cache variable VAR accordingly.
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ac_fn_c_check_member ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
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$as_echo_n "checking for $2.$3... " >&6; }
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if { as_var=$4; eval "test \"\${$as_var+set}\" = set"; }; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$5
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int
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main ()
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{
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static $2 ac_aggr;
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if (ac_aggr.$3)
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return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$4=yes"
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$5
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int
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main ()
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{
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static $2 ac_aggr;
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if (sizeof ac_aggr.$3)
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return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$4=yes"
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else
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eval "$4=no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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eval ac_res=\$$4
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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} # ac_fn_c_check_member
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cat >config.log <<_ACEOF
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This file contains any messages produced by compilers while
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running configure, to aid debugging if configure makes a mistake.
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@ -11440,6 +11440,42 @@ $as_echo "$LIBIPT" >&6; }
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libipt is missing or unusable; some features may be unavailable." >&5
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$as_echo "$as_me: WARNING: libipt is missing or unusable; some features may be unavailable." >&2;}
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fi
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else
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save_LIBS=$LIBS
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LIBS="$LIBS $LIBIPT"
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for ac_func in pt_insn_event
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do :
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ac_fn_c_check_func "$LINENO" "pt_insn_event" "ac_cv_func_pt_insn_event"
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if test "x$ac_cv_func_pt_insn_event" = x""yes; then :
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cat >>confdefs.h <<_ACEOF
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#define HAVE_PT_INSN_EVENT 1
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_ACEOF
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fi
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done
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ac_fn_c_check_member "$LINENO" "struct pt_insn" "enabled" "ac_cv_member_struct_pt_insn_enabled" "#include <intel-pt.h>
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"
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if test "x$ac_cv_member_struct_pt_insn_enabled" = x""yes; then :
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cat >>confdefs.h <<_ACEOF
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#define HAVE_STRUCT_PT_INSN_ENABLED 1
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_ACEOF
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fi
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ac_fn_c_check_member "$LINENO" "struct pt_insn" "resynced" "ac_cv_member_struct_pt_insn_resynced" "#include <intel-pt.h>
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"
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if test "x$ac_cv_member_struct_pt_insn_resynced" = x""yes; then :
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cat >>confdefs.h <<_ACEOF
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#define HAVE_STRUCT_PT_INSN_RESYNCED 1
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_ACEOF
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fi
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LIBS=$save_LIBS
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fi
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fi
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@ -1272,6 +1272,13 @@ else
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else
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AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
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fi
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else
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save_LIBS=$LIBS
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LIBS="$LIBS $LIBIPT"
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AC_CHECK_FUNCS(pt_insn_event)
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AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
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[#include <intel-pt.h>])
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LIBS=$save_LIBS
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fi
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fi
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