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--- redhat-rpm-config-9.1.0/macros.dwz.jj 2012-06-25 13:08:44.854489913 +0200
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+++ redhat-rpm-config-9.1.0/macros.dwz 2012-06-25 13:03:55.520112180 +0200
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@@ -0,0 +1,39 @@
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+# Macros for reducing debug info size using dwz(1) utility.
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+
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+# The two default values below should result in dwz taking at most
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+# 3GB of RAM or so on 64-bit hosts and 2.5GB on 32-bit hosts
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+# on the largest *.debug files (in mid 2012 those are
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+# libreoffice-debuginfo, debuginfos containing
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+# libxul.so.debug and libwebkitgtk-*.so.*.debug).
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+# This needs to be tuned based on the amount of available RAM
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+# on build boxes for each architecture as well as virtual address
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+# space limitations if dwz is 32-bit program. While it needs less
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+# memory than 64-bit program because pointers are smaller, it can
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+# never have more than 4GB-epsilon of RAM and on some architecture
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+# even less than that (e.g. 2GB).
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+
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+# Number of debugging information entries (DIEs) above which
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+# dwz will stop considering file for multifile optimizations
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+# and enter a low memory mode, in which it will optimize
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+# in about half the memory needed otherwise.
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+%_dwz_low_mem_die_limit 10000000
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+# Number of DIEs above which dwz will stop processing
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+# a file altogether.
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+%_dwz_max_die_limit 50000000
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+
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+# On x86_64 increase the higher limit to make libwebkit* optimizable.
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+# libwebkit* in mid 2012 contains roughly 87mil DIEs, and 64-bit
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+# dwz is able to optimize it from ~1.1GB to ~410MB using 5.2GB of RAM.
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+%_dwz_max_die_limit_x86_64 110000000
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+
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+# On ARM, build boxes often have only 512MB of RAM and are very slow.
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+# Lower both the limits.
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+%_dwz_low_mem_die_limit_armv5tel 4000000
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+%_dwz_low_mem_die_limit_armv7hl 4000000
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+%_dwz_max_die_limit_armv5tel 10000000
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+%_dwz_max_die_limit_armv7hl 10000000
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+
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+%_dwz_limit() %{expand:%%{?%{1}_%{_arch}}%%{!?%{1}_%{_arch}:%%%{1}}}
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+%_find_debuginfo_dwz_opts --run-dwz\\\
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+ --dwz-low-mem-die-limit %{_dwz_limit _dwz_low_mem_die_limit}\\\
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+ --dwz-max-die-limit %{_dwz_limit _dwz_max_die_limit}
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