new package: libexecinfo

packages/libexecinfo/LICENSE

@@ -0,0 +1,23 @@
+ * Copyright (c) 2003 Maxim Sobolev <sobomax@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

packages/libexecinfo/build.sh

@@ -0,0 +1,34 @@
+TERMUX_PKG_HOMEPAGE=https://www.freshports.org/devel/libexecinfo
+TERMUX_PKG_DESCRIPTION="A quick-n-dirty BSD licensed clone of backtrace facility found in the GNU libc"
+TERMUX_PKG_LICENSE="BSD 2-Clause"
+TERMUX_PKG_MAINTAINER="@termux"
+TERMUX_PKG_VERSION=1.1
+TERMUX_PKG_SRCURL=http://distcache.FreeBSD.org/ports-distfiles/libexecinfo-${TERMUX_PKG_VERSION}.tar.bz2
+TERMUX_PKG_SHA256=c9a21913e7fdac8ef6b33250b167aa1fc0a7b8a175145e26913a4c19d8a59b1f
+
+# Apparently not working for these arches:
+TERMUX_PKG_BLACKLISTED_ARCHES="i686, x86_64"
+
+termux_step_post_get_source() {
+	cp $TERMUX_PKG_BUILDER_DIR/LICENSE ./
+}
+
+termux_step_pre_configure() {
+	CFLAGS+=" -fvisibility=hidden -fno-strict-aliasing"
+	LDFLAGS+=" -lm"
+}
+
+termux_step_make() {
+	local objs="execinfo.o stacktraverse.o"
+	local f
+	for f in $objs; do
+		$CC $CFLAGS $CPPFLAGS "$TERMUX_PKG_SRCDIR/${f%.o}.c" -c
+	done
+	$CC $CFLAGS $objs -shared $LDFLAGS -o libexecinfo.so
+	$AR cru libexecinfo.a $objs
+}
+
+termux_step_make_install() {
+	install -Dm600 -t $TERMUX_PREFIX/lib libexecinfo.{a,so}
+	install -Dm600 -t $TERMUX_PREFIX/include $TERMUX_PKG_SRCDIR/execinfo.h
+}

packages/libexecinfo/execinfo.c.patch

@@ -0,0 +1,26 @@
+--- a/execinfo.c
++++ b/execinfo.c
+@@ -52,6 +52,8 @@
+     return nptr;
+ }
+ 
++#pragma GCC visibility push(default)
++
+ int
+ backtrace(void **buffer, int size)
+ {
+@@ -78,7 +80,7 @@
+     rval = malloc(clen);
+     if (rval == NULL)
+         return NULL;
+-    (char **)cp = &(rval[size]);
++    cp = &(rval[size]);
+     for (i = 0; i < size; i++) {
+         if (dladdr(buffer[i], &info) != 0) {
+             if (info.dli_sname == NULL)
+@@ -158,3 +160,5 @@
+         write(fd, buf, len - 1);
+     }
+ }
++
++#pragma GCC visibility pop