blob: e6f6c09bac8f0656dd92dc7efd24ae9035628221 [file] [log] [blame]
Andrew Geissler475cb722020-07-10 16:00:51 -05001From fcb414abb62223e66dba413d0ca86eab3ea5bbc3 Mon Sep 17 00:00:00 2001
2From: Alexander Kanavin <alex.kanavin@gmail.com>
3Date: Sun, 21 Jun 2020 13:54:47 +0000
4Subject: [PATCH] src-gen-lock-obj.sh: add a file
5
6This is erroneously missing from the tarball; it will show
7up in the next release tarball, as upstream has fixed the
8packaging in master.
9
10Upstream-Status: Inappropriate
11Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
12---
13 src/gen-lock-obj.sh | 112 ++++++++++++++++++++++++++++++++++++++++++++
14 1 file changed, 112 insertions(+)
15 create mode 100755 src/gen-lock-obj.sh
16
17diff --git a/src/gen-lock-obj.sh b/src/gen-lock-obj.sh
18new file mode 100755
19index 0000000..13858cf
20--- /dev/null
21+++ b/src/gen-lock-obj.sh
22@@ -0,0 +1,112 @@
23+#! /bin/sh
24+#
25+# gen-lock-obj.sh - Build tool to construct the lock object.
26+#
27+# Copyright (C) 2020 g10 Code GmbH
28+#
29+# This file is part of libgpg-error.
30+#
31+# libgpg-error is free software; you can redistribute it and/or
32+# modify it under the terms of the GNU Lesser General Public License
33+# as published by the Free Software Foundation; either version 2.1 of
34+# the License, or (at your option) any later version.
35+#
36+# libgpg-error is distributed in the hope that it will be useful, but
37+# WITHOUT ANY WARRANTY; without even the implied warranty of
38+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
39+# Lesser General Public License for more details.
40+#
41+# You should have received a copy of the GNU Lesser General Public
42+# License along with this program; if not, see <https://www.gnu.org/licenses/>.
43+#
44+
45+#
46+# Following variables should be defined to invoke this script
47+#
48+# CC
49+# OBJDUMP
50+# AWK
51+# ac_ext
52+# ac_object
53+# host
54+# LOCK_ABI_VERSION
55+#
56+# An example:
57+#
58+# LOCK_ABI_VERSION=1 host=x86_64-pc-linux-gnu host_alias=x86_64-linux-gnu \
59+# CC=$host_alias-gcc OBJDUMP=$host_alias-objdump ac_ext=c ac_objext=o \
60+# AWK=gawk ./gen-lock-obj.sh
61+#
62+
63+AWK_VERSION_OUTPUT=$($AWK 'BEGIN { print PROCINFO["version"] }')
64+if test -n "$AWK_VERSION_OUTPUT"; then
65+ # It's GNU awk, which supports PROCINFO.
66+ AWK_OPTION=--non-decimal-data
67+fi
68+
69+cat <<'EOF' >conftest.$ac_ext
70+#include <pthread.h>
71+pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
72+EOF
73+
74+if $CC -c conftest.$ac_ext; then :
75+ ac_mtx_size=$($OBJDUMP -j .bss -t conftest.$ac_objext \
76+ | $AWK $AWK_OPTION '
77+/mtx$/ { mtx_size = int("0x" $5) }
78+END { print mtx_size }')
79+else
80+ echo "Can't determine mutex size"
81+ exit 1
82+fi
83+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
84+
85+cat <<EOF
86+## lock-obj-pub.$host.h
87+## File created by gen-lock-obj.sh - DO NOT EDIT
88+## To be included by mkheader into gpg-error.h
89+
90+typedef struct
91+{
92+ long _vers;
93+ union {
94+ volatile char _priv[$ac_mtx_size];
95+ long _x_align;
96+ long *_xp_align;
97+ } u;
98+} gpgrt_lock_t;
99+
100+EOF
101+
102+# FIXME: Support different alignment conditions of:
103+#
104+# USE_16BYTE_ALIGNMENT
105+# USE_DOUBLE_FOR_ALIGNMENT
106+# USE_LONG_DOUBLE_FOR_ALIGNMENT
107+#
108+
109+echo -n "#define GPGRT_LOCK_INITIALIZER {$LOCK_ABI_VERSION,{{"
110+
111+i=0
112+while test "$i" -lt $ac_mtx_size; do
113+ if test "$i" -ne 0 -a "$(( $i % 8 ))" -eq 0; then
114+ echo ' \'
115+ echo -n " "
116+ fi
117+ echo -n '0'
118+ if test "$i" -lt $(($ac_mtx_size - 1)); then
119+ echo -n ','
120+ fi
121+ i=$(( i + 1 ))
122+done
123+
124+cat <<'EOF'
125+}}}
126+##
127+## Local Variables:
128+## mode: c
129+## buffer-read-only: t
130+## End:
131+##
132+EOF
133+
134+exit 0