Dmitry V. Levin
457de4ae02
While strip is verbose when it fails to process files, it's not quite obvious that it exits with a non-zero status, hence an explicit diagnostics message might be useful.
43 lines
1.3 KiB
Bash
Executable File
43 lines
1.3 KiB
Bash
Executable File
#!/bin/sh -efu
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#
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# Process single file for LTO business.
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# (Will be run multiple instances in parallel.)
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#
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# Based on brp-strip-lto (Fedora).
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# Copyright (c) 2021 Vitaly Chikunov <vt@altlinux.org>.
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# License: GPLv2+.
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#
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# Implementation notes:
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# - eu-strip cannot be used due to absence of `-N`.
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. @RPMCONFIGDIR@/functions
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ValidateBuildRoot
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cd "$RPM_BUILD_ROOT"
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mkdir -p .tmp
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# If there is only slim lto, strip will produce "plugin needed to handle lto
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# object" warning, because of stripping __gnu_lto_v1 symbol while remaining
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# __gnu_lto_slim.
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strip -p -R '.gnu.lto_*' -R '.gnu.debuglto_*' -N '__gnu_lto_v1' -- "$@" ||
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Fatal 'strip failed'
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# Verify that we still have exportable symbols.
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suggest="Perhaps, you need to %global optflags_lto %optflags_lto -ffat-lto-objects"
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for f
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do
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# Output in one line per symbol format.
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nm -g -A -P "$f" > .tmp/lto-nm.$$ 2>/dev/null
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if grep -F -q -w ': __gnu_lto_slim' .tmp/lto-nm.$$; then
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if grep -F -q -v -w ': __gnu_lto_slim' .tmp/lto-nm.$$; then
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Fatal "$f: contains __gnu_lto_slim. $suggest"
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else
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Fatal "$f: contains __gnu_lto_slim only. $suggest"
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fi
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elif [ ! -s .tmp/lto-nm.$$ ]; then
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# This is only informational call of file.
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Warning "$f: contains no exportable symbols: $(file4 -b "$f")"
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fi
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rm .tmp/lto-nm.$$
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done
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