Re: KPI change for GCC4.0 (was __cxa_guard_acquire / __cxa_guard_release)

• Subject: Re: KPI change for GCC4.0 (was __cxa_guard_acquire / __cxa_guard_release)
• From: Andrew Pinski <email@hidden>
• Date: Mon, 9 May 2005 14:07:28 -0400
• Delivered-to: email@hidden
• Delivered-to: email@hidden

On May 9, 2005, at 2:02 PM, Godfrey van der Linden wrote:

Oh I think I know what it is. Sorry I was on the wrong track all together. This is a problem with in function static constructors. In gcc 4.0 we realised that they just don't work inside the kernel environment.

The problem is that these 2 functions are required to take and release a lock. Unfortunately it doesn't tell us what sort of lock to take and release. In the kernel that just isn't acceptable.

Hence gcc4.0 has a source incompatibility. It does not reliably implement in function static construction.

Or just use -fno-threadsafe-statics.

-- Pinski

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