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Re: [PATCH 0/3] Mips support for PT_GNU_STACK
- From: Florian Weimer <fweimer at redhat dot com>
- To: Dragan Mladjenovic <dmladjenovic at wavecomp dot com>
- Cc: "libc-alpha\@sourceware.org" <libc-alpha at sourceware dot org>, Joseph Myers <joseph at codesourcery dot com>, Carlos O'Donell <carlos at redhat dot com>, "Maciej W. Rozycki" <macro at linux-mips dot org>, Faraz Shahbazker <fshahbazker at wavecomp dot com>
- Date: Fri, 28 Jun 2019 10:34:30 +0200
- Subject: Re: [PATCH 0/3] Mips support for PT_GNU_STACK
- References: <1561672142-5907-1-git-send-email-dmladjenovic@wavecomp.com>
* Dragan Mladjenovic:
> The form of detection the patch proposes is not yet provided by the
> kernel. Instead, this version of the patch does kernel version check
> at runtime and provides compatible behavior if it cannot detect the
> 4.8 kernel or newer.
People patch their kernels to lie about the version, so I don't think
this is correct.
Kernel developers also think it's acceptable to change compatibility
mechanisms that have already been deployed in binutils or glibc, so I
really think this needs to wait until some signal has been added to the
the auxiliary vector in a mainline kernel. Sorry.
Thanks,
Florian