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From b4d166652011f0d0e8573feb616283698f6cf848 Mon Sep 17 00:00:00 2001
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From: Mark Wielaard <mark@klomp.org>
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Date: Wed, 28 Jun 2017 13:34:55 +0200
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Subject: [PATCH 40/54] find-debuginfo.sh: Filter out all <built-in> like fake
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 file names.
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There is no official way to mark an instruction range as being not
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part of some actual source code, but as part of a compiler built-in
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construct in DWARF. So different compilers have come up with fake
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source file names like <built-in> or <__thread_local_inner macros>.
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We already filtered out the strings "<internal>" and "<built-in>".
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Just filter out all '(^|/)<[a-z _-]+>$'. They are fake files!
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This is mainly to appease the rustc compiler which generates lots of
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different variants to encode some instruction sequence is part of an
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compiler generated macro expansion.
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Signed-off-by: Mark Wielaard <mark@klomp.org>
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(cherry picked from commit ff239ff4b06c86485eccaf8f4ecadc9bceb34748)
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---
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 scripts/find-debuginfo.sh | 6 +++++-
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 1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/scripts/find-debuginfo.sh b/scripts/find-debuginfo.sh
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index bede833d7..eb62a158a 100644
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--- a/scripts/find-debuginfo.sh
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+++ b/scripts/find-debuginfo.sh
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@@ -502,7 +502,11 @@ if [ -s "$SOURCEFILE" ]; then
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   fi
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   mkdir -p "${RPM_BUILD_ROOT}${debug_dest_name}"
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-  LC_ALL=C sort -z -u "$SOURCEFILE" | grep -E -v -z '(<internal>|<built-in>)$' |
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+  # Filter out anything compiler generated which isn't a source file.
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+  # e.g. <internal>, <built-in>, <__thread_local_inner macros>.
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+  # Some compilers generate them as if they are part of the working
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+  # directory (which is why we match against ^ or /).
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+  LC_ALL=C sort -z -u "$SOURCEFILE" | grep -E -v -z '(^|/)<[a-z _-]+>$' |
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   (cd "${debug_base_name}"; cpio -pd0mL "${RPM_BUILD_ROOT}${debug_dest_name}")
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   # stupid cpio creates new directories in mode 0700,
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   # and non-standard modes may be inherented from original directories, fixup
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-- 
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2.13.2
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