forked from mirrors/nixpkgs
143 lines
3.4 KiB
Diff
143 lines
3.4 KiB
Diff
diff --git a/src/gen-lock-obj.sh b/src/gen-lock-obj.sh
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index a710f0c..258eec6 100755
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--- a/src/gen-lock-obj.sh
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+++ b/src/gen-lock-obj.sh
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@@ -1,136 +1,136 @@
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#! /bin/sh
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#
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# gen-lock-obj.sh - Build tool to construct the lock object.
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#
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# Copyright (C) 2020, 2021 g10 Code GmbH
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#
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# This file is part of libgpg-error.
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#
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# libgpg-error is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public License
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# as published by the Free Software Foundation; either version 2.1 of
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# the License, or (at your option) any later version.
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#
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# libgpg-error is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program; if not, see <https://www.gnu.org/licenses/>.
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#
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#
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# Following variables should be defined to invoke this script
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#
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# CC
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# OBJDUMP
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# AWK
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# ac_ext
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# ac_object
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# host
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# LOCK_ABI_VERSION
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#
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# An example:
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#
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# LOCK_ABI_VERSION=1 host=x86_64-pc-linux-gnu host_alias=x86_64-linux-gnu \
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# CC=$host_alias-gcc OBJDUMP=$host_alias-objdump ac_ext=c ac_objext=o \
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# AWK=gawk ./gen-lock-obj.sh
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#
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-if test -n `echo -n`; then
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+if test -n "`echo -n`"; then
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ECHO_C='\c'
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ECHO_N=''
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else
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ECHO_C=''
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ECHO_N='-n'
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fi
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if test "$1" = --disable-threads; then
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cat <<EOF
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## lock-obj-pub.$host.h - NO LOCK SUPPORT
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## File created by gen-lock-obj.sh - DO NOT EDIT
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## To be included by mkheader into gpg-error.h
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/* Dummy object - no locking available. */
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typedef struct
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{
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long _vers;
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} gpgrt_lock_t;
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#define GPGRT_LOCK_INITIALIZER {-1}
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EOF
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else
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AWK_VERSION_OUTPUT=$($AWK 'BEGIN { print PROCINFO["version"] }')
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if test -n "$AWK_VERSION_OUTPUT"; then
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# It's GNU awk, which supports PROCINFO.
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AWK_OPTION=--non-decimal-data
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fi
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cat <<'EOF' >conftest.$ac_ext
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#include <pthread.h>
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pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
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EOF
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if $CC -c conftest.$ac_ext; then :
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ac_mtx_size=$($OBJDUMP -j .bss -t conftest.$ac_objext \
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| $AWK $AWK_OPTION '
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/mtx$/ { mtx_size = int("0x" $5) }
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END { print mtx_size }')
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else
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echo "Can't determine mutex size"
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exit 1
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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cat <<EOF
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## lock-obj-pub.$host.h
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## File created by gen-lock-obj.sh - DO NOT EDIT
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## To be included by mkheader into gpg-error.h
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typedef struct
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{
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long _vers;
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union {
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volatile char _priv[$ac_mtx_size];
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long _x_align;
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long *_xp_align;
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} u;
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} gpgrt_lock_t;
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EOF
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# FIXME: Support different alignment conditions of:
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#
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# USE_16BYTE_ALIGNMENT
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# USE_DOUBLE_FOR_ALIGNMENT
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# USE_LONG_DOUBLE_FOR_ALIGNMENT
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#
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echo ${ECHO_N} "#define GPGRT_LOCK_INITIALIZER {$LOCK_ABI_VERSION,{{${ECHO_C}"
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i=0
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while test "$i" -lt $ac_mtx_size; do
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if test "$i" -ne 0 -a "$(( $i % 8 ))" -eq 0; then
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echo ' \'
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echo ${ECHO_N} " ${ECHO_C}"
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fi
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echo ${ECHO_N} "0${ECHO_C}"
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if test "$i" -lt $(($ac_mtx_size - 1)); then
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echo ${ECHO_N} ",${ECHO_C}"
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fi
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i=$(( i + 1 ))
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done
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fi
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cat <<'EOF'
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}}}
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##
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## Local Variables:
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## mode: c
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## buffer-read-only: t
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## End:
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##
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EOF
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exit 0
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