mirror_zfs/config/user-backtrace.m4

dnl
dnl backtrace(), for userspace assertions. glibc has this directly in libc.
dnl FreeBSD and (sometimes) musl have it in a separate -lexecinfo. It's assumed
dnl that this will also get the companion function backtrace_symbols().
dnl
AC_DEFUN([ZFS_AC_CONFIG_USER_BACKTRACE], [
	AX_SAVE_FLAGS
	LIBS=""
	AC_SEARCH_LIBS([backtrace], [execinfo], [
		AC_DEFINE(HAVE_BACKTRACE, 1, [backtrace() is available])
		AC_SUBST([BACKTRACE_LIBS], ["$LIBS"])
	])
	AX_RESTORE_FLAGS
])
libspl/assert: dump backtrace in assert Adds a check for the backtrace() function. If available, uses it to show a stack backtrace in the assertion output. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Sponsored-by: https://despairlabs.com/sponsor/ Closes #16140 2024-04-27 14:35:05 +03:00			`dnl`
			`dnl backtrace(), for userspace assertions. glibc has this directly in libc.`
			`dnl FreeBSD and (sometimes) musl have it in a separate -lexecinfo. It's assumed`
			`dnl that this will also get the companion function backtrace_symbols().`
			`dnl`
			`AC_DEFUN([ZFS_AC_CONFIG_USER_BACKTRACE], [`
			`AX_SAVE_FLAGS`
			`LIBS=""`
			`AC_SEARCH_LIBS([backtrace], [execinfo], [`
			`AC_DEFINE(HAVE_BACKTRACE, 1, [backtrace() is available])`
			`AC_SUBST([BACKTRACE_LIBS], ["$LIBS"])`
			`])`
			`AX_RESTORE_FLAGS`
			`])`