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17 lines
526 B
Bash
17 lines
526 B
Bash
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#!/bin/sh -eu
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# SPDX-License-Identifier: GPL-2.0
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tmp_file=$(mktemp)
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trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
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cat << "END" | "$CC" -c -x c - -o $tmp_file.o >/dev/null 2>&1
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void *p = &p;
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END
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"$LD" $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
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# Despite printing an error message, GNU nm still exits with exit code 0 if it
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# sees a relr section. So we need to check that nothing is printed to stderr.
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test -z "$("$NM" $tmp_file 2>&1 >/dev/null)"
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"$OBJCOPY" -O binary $tmp_file $tmp_file.bin
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