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From: Randolph Chung <randolph@tausq.org>
To: Carlos O'Donell <carlos@systemhalted.org>
Cc: parisc-linux <parisc-linux@lists.parisc-linux.org>
Subject: [parisc-linux] Re: Q: TLS local dynamic case and zero initialized ti_offset?
Date: Mon, 10 Apr 2006 07:40:49 +0800	[thread overview]
Message-ID: <44399B81.6070207@tausq.org> (raw)
In-Reply-To: <119aab440604081516v7613ab2and79c35d084e83cba@mail.gmail.com>

> In the local dynamic case we emit one reloc R_PARISC_TLS_DTPMOD32.
> This means that at runtime there is a GOT entry with an absoluate
> address which points to a tls_index structure, which has it's
> ti_module filled by the dynamic loader (after processing the DTPMOD32
> reloc). The question I have is, does this tls_index appear in bss? Is
> the offset ti_offset initialized to zero? The zero offset is required
> since we want __tls_get_addr to return the start of the modules block,
> so we can subsequently offset into that block without calling
> __tls_get_addr again.

In the LD case, the tls_index structure is inside the GOT. The GOT is 
zeroed by ld when it is created.

randolph
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      reply	other threads:[~2006-04-09 23:40 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-08 22:16 [parisc-linux] Q: TLS local dynamic case and zero initialized ti_offset? Carlos O'Donell
2006-04-09 23:40 ` Randolph Chung [this message]

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