gh-127604: Add C stack dumps to faulthandler (#128159)

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Peter Bierma 2025-04-21 15:48:02 -04:00 committed by GitHub
parent ea8ec95cfa
commit 8dfa840773
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GPG key ID: B5690EEEBB952194
13 changed files with 378 additions and 69 deletions

161
configure generated vendored
View file

@ -2313,6 +2313,70 @@ fi
} # ac_fn_c_try_run
# ac_fn_c_check_func LINENO FUNC VAR
# ----------------------------------
# Tests whether FUNC exists, setting the cache variable VAR accordingly
ac_fn_c_check_func ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
printf %s "(cached) " >&6
else case e in #(
e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
For example, HP-UX 11i <limits.h> declares gettimeofday. */
#define $2 innocuous_$2
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $2 (void); below. */
#include <limits.h>
#undef $2
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char $2 (void);
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined __stub_$2 || defined __stub___$2
choke me
#endif
int
main (void)
{
return $2 ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
eval "$3=yes"
else case e in #(
e) eval "$3=no" ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext ;;
esac
fi
eval ac_res=\$$3
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
} # ac_fn_c_check_func
# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
# -------------------------------------------
# Tests whether TYPE exists after having included INCLUDES, setting cache
@ -2567,70 +2631,6 @@ rm -f conftest.val
} # ac_fn_c_compute_int
# ac_fn_c_check_func LINENO FUNC VAR
# ----------------------------------
# Tests whether FUNC exists, setting the cache variable VAR accordingly
ac_fn_c_check_func ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
printf %s "(cached) " >&6
else case e in #(
e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
For example, HP-UX 11i <limits.h> declares gettimeofday. */
#define $2 innocuous_$2
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $2 (void); below. */
#include <limits.h>
#undef $2
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char $2 (void);
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined __stub_$2 || defined __stub___$2
choke me
#endif
int
main (void)
{
return $2 ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
eval "$3=yes"
else case e in #(
e) eval "$3=no" ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext ;;
esac
fi
eval ac_res=\$$3
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
} # ac_fn_c_check_func
# ac_fn_check_decl LINENO SYMBOL VAR INCLUDES EXTRA-OPTIONS FLAG-VAR
# ------------------------------------------------------------------
# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
@ -11877,6 +11877,39 @@ fi
fi
# for faulthandler
for ac_header in execinfo.h link.h dlfcn.h
do :
as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
if eval test \"x\$"$as_ac_Header"\" = x"yes"
then :
cat >>confdefs.h <<_ACEOF
#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
_ACEOF
ac_fn_c_check_func "$LINENO" "backtrace" "ac_cv_func_backtrace"
if test "x$ac_cv_func_backtrace" = xyes
then :
printf "%s\n" "#define HAVE_BACKTRACE 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "backtrace_symbols" "ac_cv_func_backtrace_symbols"
if test "x$ac_cv_func_backtrace_symbols" = xyes
then :
printf "%s\n" "#define HAVE_BACKTRACE_SYMBOLS 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "dladdr1" "ac_cv_func_dladdr1"
if test "x$ac_cv_func_dladdr1" = xyes
then :
printf "%s\n" "#define HAVE_DLADDR1 1" >>confdefs.h
fi
fi
done
# bluetooth/bluetooth.h has been known to not compile with -std=c99.
# http://permalink.gmane.org/gmane.linux.bluez.kernel/22294
SAVE_CFLAGS=$CFLAGS