From llvm: Fwd: [Bug 26519] Clang 3.8.0's "Target: powerpc-unknown-freebsd11.0" code generation is violating the SVR4 ABI (SEGV can result) [fixed in llvm -r280705]

[Mark Millard]

llvm's bugzilla reports that the stack-handling SVR4 ABI violation for TARGET_ARCH=powerpc has been fixed r280705 (likely on trunk)! See below.

This still leaves some problems in the C++ Itanium ABI exception handling support for both powerpc64 and powerpc. Also powerpc64 does not have softfloat available --which blocks libstand from building. Overall the META llvm bug 25780 still lists 3 "depends on" defects pending. One has a partial fix out for review.



Begin forwarded message:

> From: bugzilla-daemon at llvm.org
> Subject: [Bug 26519] Clang 3.8.0's "Target: powerpc-unknown-freebsd11.0" code generation is violating the SVR4 ABI (SEGV can result)
> Date: September 6, 2016 at 5:31:17 AM PDT
> To: <markmi at dsl-only.net>
> 
> Krzysztof Parzyszek changed bug 26519 
> What	Removed	Added
> Status	NEW	RESOLVED
> Resolution	---	FIXED
> 
> Comment # 6 on bug 26519 from Krzysztof Parzyszek
> Committed in r280705.
> 
> You are receiving this mail because:
> 	• You reported the bug.

Begin forwarded message:

> From: bugzilla-daemon at llvm.org
> Subject: [Bug 25780] [META] Using Clang as the FreeBSD/ppc system compiler
> Date: September 6, 2016 at 5:31:20 AM PDT
> To: <markmi at dsl-only.net>
> 
> Bug 25780 depends on bug 26519, which changed state. 
> What	Removed	Added
> Status	NEW	RESOLVED
> Resolution	---	FIXED
> 
> You are receiving this mail because:
> 	• You are on the CC list for the bug.

===
Mark Millard
markmi at dsl-only.net

On 2016-Sep-1, at 8:08 AM, Mark Millard <markmi at dsl-only.net> wrote:

https://reviews.llvm.org/D24093 is a code review for llvm potentially fixing the violation of the TARGET_ARCH=powerpc SVR4 ABI stack handling rules, no longer requiring a "red-zone" on the stack. See below for more information.

===
Mark Millard
markmi at dsl-only.net

Begin forwarded message:

From: bugzilla-daemon at llvm.org
Subject: [Bug 26519] Clang 3.8.0's "Target: powerpc-unknown-freebsd11.0" code generation is violating the SVR4 ABI (SEGV can result)
Date: September 1, 2016 at 7:22:49 AM PDT
To: <markmi at dsl-only.net>


Comment # 5 on bug 26519 from Krzysztof Parzyszek
Patch for review: https://reviews.llvm.org/D24093

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