Received: from fforwardh-b4-smtp.messagingengine.com (fforwardh-b4-smtp.messagingengine.com [202.12.124.199])
	by gbr-app-1.alpinelinux.org (Postfix) with ESMTPS id 8114B2202A2
	for <~alpine/devel@lists.alpinelinux.org>; Tue, 18 Mar 2025 21:00:11 +0000 (UTC)
Received: from phl-compute-05.internal (phl-compute-05.phl.internal [10.202.2.45])
	by mailfforwardh.stl.internal (Postfix) with ESMTP id 7440517403B9
	for <~alpine/devel@lists.alpinelinux.org>; Tue, 18 Mar 2025 17:00:08 -0400 (EDT)
Received: from phl-imap-12 ([10.202.2.86])
  by phl-compute-05.internal (MEProxy); Tue, 18 Mar 2025 17:00:08 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=
	messagingengine.com; h=cc:content-transfer-encoding:content-type
	:content-type:date:date:feedback-id:feedback-id:from:from
	:in-reply-to:message-id:mime-version:reply-to:subject:subject:to
	:to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=
	1742331608; x=1742418008; bh=UsxjCcxzYsfqf76gtQ2s4e33We117Ecxpwd
	8tzRn7mU=; b=weG9D7w0GrlLZcvtKRhE6GaaDEsfMl+/5iwsHGFWV6I16YCE3KX
	ce0ou5udP1K1hT3RR86/BYavCYeTWtytBz5xvMgv/xKDoiNmt44jqmVtv2QKPdbn
	8H7FFK3dLBaOuBvMUwIMZox5O3/YPuvVUw/jzy1eTsTmjpjIXZB9humnDb0bSTx/
	0cG6Rq5E4L/O8GyUmyQ2lQNCUWPIqYzEg+vwza5NJtJBZ/ixvpqilkWzLi8Qvtl6
	yw0mOr9Ywdwp9/B/0Wmkbnn5we7KaGR3ltQGa7xGT12Kg11vCxbfZauwlFWqOKP6
	TEI1nNpmlUyOJDJIMSnQGnKEY8gdeX9d3WA==
X-ME-Sender: <xms:2N7ZZw0XWc1IdwPPVqDYIiB3Mh0MI_GMfPXxxQRgg3g3_IDPQlYxKA>
    <xme:2N7ZZ7GalkfVMngZKdbbhH-eA89NknvB7lkMfw2F-_hHd7x3XxYLuftGDoGI79lLY
    n5dnZ164iOOxA>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgddugeefgeejucetufdoteggodetrf
    dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggv
    pdfurfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucenucfjughrpefogg
    ffhffvkffutgfgsehtjeertdertddtnecuhfhrohhmpedflfhimhcurfhrhihorhdfuceo
    ughusghiohhushhjihhmsehgmhgrihhlrdgtohhmqeenucggtffrrghtthgvrhhnpeetle
    efteeffeethfefteejteetudehvdeuteduudelvdfffeejiedvveejtdelvdenucevlhhu
    shhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpeguuhgsihhouhhsjh
    himhesghhmrghilhdrtghomhdpnhgspghrtghpthhtohepuddpmhhouggvpehsmhhtphho
    uhhtpdhrtghpthhtohepmigrlhhpihhnvgdsuggvvhgvlheslhhishhtshdrrghlphhinh
    gvlhhinhhugidrohhrgh
X-ME-Proxy: <xmx:2N7ZZ447p9qSwdXFJgFaXvgTf1CVal3zvagH9xuEp53EFbFDCFMmpQ>
    <xmx:2N7ZZ51bgajpxkr5AX3a2SXqAJyNnLFAGzQ96TWt1rwMY7Z_U3jXMQ>
    <xmx:2N7ZZzHUYs52eKKBwoiVjNSqTkt__XvekU4l-fxevV0ASZe-LV7zOw>
    <xmx:2N7ZZy_7ykYymjjm7UaEhqVJUKSeclonLRWj1NMJwA2Jslm9ORHGeg>
    <xmx:2N7ZZ4m-Ckaz_WypdIQdbPQsYrsfYn8BjGJl3NsMKfqmA_oJuLmLdQ>
    <xmx:2N7ZZ45ZHtPK7xInjoNENEIdj1Qi1BbiYjAqM3uU6CPMfJYgy6AkCLPe_ICW>
Feedback-ID: i5b2c416c:Fastmail
Received: by mailuser.phl.internal (Postfix, from userid 501)
	id 0F5781C20067; Tue, 18 Mar 2025 17:00:08 -0400 (EDT)
X-Mailer: MessagingEngine.com Webmail Interface
MIME-Version: 1.0
X-ThreadId: T3dbfd3abeb6d0148
Date: Tue, 18 Mar 2025 16:59:47 -0400
From: "Jim Pryor" <dubiousjim@gmail.com>
To: ~alpine/devel@lists.alpinelinux.org
Message-Id: <30674376-d675-4c1d-96ef-7afb88a0dabb@app.fastmail.com>
Subject: stack smashing protection?
Content-Type: text/plain
Content-Transfer-Encoding: 7bit

I'm building some binaries on an ARMv7 build of Alpine, and getting errors about the symbol `__stack_chk_fail` being missing.

Adding `-fno-stack-protector` to my build command solves the issue.

But I wonder if there's a way to get stack protection? I notice that when I do `nm -D /usr/lib/libc.so | grep __stack_chk_fail` I get the output:

```
0003cc48 T __stack_chk_fail
```

So the symbol is there, just not getting linked.

I tried adding each of these to my build command, but none of them seemed to fix the issue (that is, let me build without disabling stack protection):

* -Wl,--whole-archive -lssp_nonshared -Wl,--no-whole-archive
* -static-libgcc
* -Wl,--as-needed -lc

Is there something else I should be trying?

-- 
dubiousjim@gmail.com