Bug#172090: marked as done ([PR target/9074] [alpha] gcc fails to compile kernel on wildfire)
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Subject: gcc-3.2: [alpha] gcc fails to compile kernel on wildfire
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Package: gcc-3.2
Version: 1:3.2.2-0pre0
Severity: normal
Compiling the kernel for the Wildfire fails with:
herbert@cardolan:/mnt/home/herbert/src/debian/work/kernel/build/2.4/kernel-image-alpha-2.4/build-wildfire/drivers/char$ /usr/lib/gcc-lib/alpha-linux/3.2.2/cc1 -lang-c -nostdinc -v -I/mnt/big/herbert/build/kernel/2.4/kernel-image-alpha-2.4/build-wildfire/include -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D__gnu_linux__ -Dlinux -Dunix -D_LONGLONG -D__alpha__ -D__ELF__ -D__gnu_linux__ -D__linux__ -D__unix__ -D_LONGLONG -D__alpha__ -D__ELF__ -D__linux -D__unix -Asystem=linux -D__OPTIMIZE__ -D__STDC_HOSTED__=1 -D__LANGUAGE_C__ -D__LANGUAGE_C -DLANGUAGE_C -Acpu=alpha -Amachine=alpha -D__alpha -D__alpha__ -D__alpha_ev6__ -Acpu=ev6 -D__alpha_bwx__ -Acpu=bwx -D__alpha_max__ -Acpu=max -D__alpha_fix__ -Acpu=fix -D__alpha_cix__ -Acpu=cix -D__KERNEL__ -DMODULE -DMODVERSIONS -DKBUILD_BASENAME=istallion -include /mnt/big/herbert/build/kernel/2.4/kernel-image-alpha-2.4/build-wildfire/include/linux/modversions.h -iwithprefix include istallion.c -quiet -dumpbase i
stallion.c -mno-fp-regs -mcpu=ev67 -O2 -Wall -Wstrict-prototypes -Wno-trigraphs -version -fno-strict-aliasing -fno-common -fomit-frame-pointer -ffixed-8
GNU CPP version 3.2.2 20021202 (Debian prerelease) (cpplib) (Alpha GNU/Linux for ELF)
GNU C version 3.2.2 20021202 (Debian prerelease) (alpha-linux)
compiled by GNU C version 3.2.2 20021202 (Debian prerelease).
#include "..." search starts here:
#include <...> search starts here:
/mnt/big/herbert/build/kernel/2.4/kernel-image-alpha-2.4/build-wildfire/include
/usr/lib/gcc-lib/alpha-linux/3.2.2/include
End of search list.
istallion.c: In function `stli_allocbrd':
istallion.c:4738: warning: int format, different type arg (arg 2)
istallion.c: In function `stli_memread':
istallion.c:4895: unable to find a register to spill in class `R27_REG'
istallion.c:4895: this is the insn:
(insn 191 423 192 (parallel[
(set (reg:DI 2 $2 [123])
(umod:DI (reg:DI 24 $24 [122])
(reg:DI 25 $25 [117])))
(clobber (reg:DI 23 $23))
(clobber (reg:DI 28 $28))
] ) 37 {*divmoddi_internal_er} (insn_list 189 (insn_list 184 (insn_list:REG_DEP_ANTI 180 (nil))))
(expr_list:REG_DEAD (reg:DI 24 $24 [122])
(expr_list:REG_UNUSED (reg:DI 23 $23)
(expr_list:REG_UNUSED (reg:DI 28 $28)
(nil)))))
istallion.c:4895: confused by earlier errors, bailing out
The compile works if the kernel is configured as generic as opposed to Wildfire.
--
Debian GNU/Linux 3.0 is out! ( http://www.debian.org/ )
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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Received: (at 172090-done) by bugs.debian.org; 29 Aug 2004 19:39:36 +0000
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for 172090-done@bugs.debian.org; Sun, 29 Aug 2004 21:39:00 +0200
To: 172090-done@bugs.debian.org
Subject: Re: Bug#172090: [Bug target/9074] [alpha-linux] gcc fails to
compile kernel on wildfire
References: <20021227155601.9074.172090@bugs.debian.org>
<[🔎] 20040826043705.27032.qmail@sourceware.org>
From: Falk Hueffner <hueffner@informatik.uni-tuebingen.de>
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Date: Sun, 29 Aug 2004 21:39:00 +0200
In-Reply-To: <[🔎] 20040826043705.27032.qmail@sourceware.org> (rth at gcc dot gnu
dot org's message of "26 Aug 2004 04:37:05 -0000")
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"rth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:
> Yes. It's unfortunate, but hard-coded register numbers get that way.
>
> The correct way to fix this is to use the new "c" register constraint
> and to not use $27 as an explicit asm register. I've had to make similar
> changes to glibc.
>
> I'll take care of getting this change pushed into the kernel.
Okay, let's close this, then.
--
Falk
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