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2152c405ba
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
15 lines
470 B
Plaintext
15 lines
470 B
Plaintext
dnl
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dnl backtrace(), for userspace assertions. glibc has this directly in libc.
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dnl FreeBSD and (sometimes) musl have it in a separate -lexecinfo. It's assumed
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dnl that this will also get the companion function backtrace_symbols().
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dnl
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AC_DEFUN([ZFS_AC_CONFIG_USER_BACKTRACE], [
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AX_SAVE_FLAGS
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LIBS=""
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AC_SEARCH_LIBS([backtrace], [execinfo], [
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AC_DEFINE(HAVE_BACKTRACE, 1, [backtrace() is available])
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AC_SUBST([BACKTRACE_LIBS], ["$LIBS"])
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])
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AX_RESTORE_FLAGS
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])
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