From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Blue Swirl <blauwirbel@gmail.com>
Subject: Re: [Qemu-devel] Alpha build failure: dyngen picking out a nameless symbol
Date: Thu, 15 Nov 2007 22:50:31 +0000 [thread overview]
Message-ID: <200711152250.33783.paul@codesourcery.com> (raw)
In-Reply-To: <f43fc5580711151201m27889636l9b9945c561c90a59@mail.gmail.com>
> So gcc puts the zero constant to .rodata.cst8 and generates code to
> load the zero value from this location. This method is not supported
> by dyngen for Sparc, but ARM uses similar method for all (?)
> constants.
Not quite. ARM puts constant pools inline with the code, not in rodata. This
is a fairly fundamental property of the arm architecture. Unlike most other
risc architectures arm does not really have any other mechanism for loading
addresses/large values. Dyngen has a nontrivial amount of special code to
handle this.
Paul
prev parent reply other threads:[~2007-11-15 22:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-14 7:04 [Qemu-devel] Alpha build failure: dyngen picking out a nameless symbol Shaddy Baddah
2007-11-14 8:10 ` [Qemu-devel] now ppc build failure: dyngen: empty code for op_splatw_T1_64 Shaddy Baddah
2007-11-14 13:13 ` [Qemu-devel] and now bus error for i386 guest Shaddy Baddah
2007-11-14 20:42 ` Blue Swirl
2007-12-04 4:21 ` Shaddy Baddah
2007-12-04 13:23 ` Shaddy Baddah
2007-12-04 18:54 ` Blue Swirl
2007-12-05 14:33 ` Shaddy Baddah
2007-12-05 21:36 ` Blue Swirl
2007-12-06 0:17 ` Shaddy Baddah
2007-12-06 9:10 ` Blue Swirl
2007-12-06 15:19 ` Blue Swirl
2007-11-15 20:01 ` [Qemu-devel] Alpha build failure: dyngen picking out a nameless symbol Blue Swirl
2007-11-15 22:50 ` Paul Brook [this message]
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