From: Eric Botcazou <ebotcazou@adacore.com>
To: gcc-patches@gcc.gnu.org
Cc: libstdc++-v3@gcc.gnu.org
Subject: [patch] Fix libstdc++-v3 build for Android
Date: Wed, 24 May 2017 07:41:00 -0000 [thread overview]
Message-ID: <2201607.crUaWaPvls@polaris> (raw)
[-- Attachment #1: Type: text/plain, Size: 553 bytes --]
Hi,
libstdc++-v3 already contains support but doesn't build for Android. Now GDB
has switched to C++, which means that you need a C++ cross-build for GDBserver
in order to debug a program on the target.
Tested on x86_64-suse-linux and arm-linux-androideab, OK for mainline?
2017-05-24 Eric Botcazou <ebotcazou@adacore.com>
* configure.ac (*-*-linux-android*): Set target_makefile_frag.
* configure: Regenerate.
config/
* mt-android: New file.
libstdc++-v3/
* src/filesystem/dir.cc (fs::_Dir::advance): Use std::exchange.
--
Eric Botcazou
[-- Attachment #2: p.diff --]
[-- Type: text/x-patch, Size: 1194 bytes --]
Index: config/mt-android
===================================================================
--- config/mt-android (revision 0)
+++ config/mt-android (working copy)
@@ -0,0 +1 @@
+CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE -fexceptions -frtti
Index: configure.ac
===================================================================
--- configure.ac (revision 248140)
+++ configure.ac (working copy)
@@ -2474,6 +2474,9 @@ case "${target}" in
nios2-*-elf*)
target_makefile_frag="config/mt-nios2-elf"
;;
+ *-*-linux-android*)
+ target_makefile_frag="config/mt-android"
+ ;;
*-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
target_makefile_frag="config/mt-gnu"
;;
Index: libstdc++-v3/src/filesystem/dir.cc
===================================================================
--- libstdc++-v3/src/filesystem/dir.cc (revision 248140)
+++ libstdc++-v3/src/filesystem/dir.cc (working copy)
@@ -146,7 +146,8 @@ fs::_Dir::advance(error_code* ec, direct
int err = std::exchange(errno, 0);
const auto entp = readdir(dirp);
- std::swap(errno, err);
+ // std::swap cannot be used with Bionic's errno
+ err = std::exchange(errno, err);
if (entp)
{
reply other threads:[~2017-05-24 7:37 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2201607.crUaWaPvls@polaris \
--to=ebotcazou@adacore.com \
--cc=gcc-patches@gcc.gnu.org \
--cc=libstdc++-v3@gcc.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).