Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi guys, On Mon, Mar 18, 2013 at 04:11:15AM +, Michael Cree wrote: > On 18/03/2013, at 10:48 AM, Will Deacon wrote: > > Due to all of the goodness being packed into today's kernels, the > > resulting image isn't as slim as it once was. > > > > In light of this, don't pass -msmall-data to the tools, which > > results in > > link failures due to impossible relocations when compiling anything > > but > > the most trivial configurations. > > I think many of us have been using -mlarge-data when compiling with > gcc-4.6 or later so maybe it is time to get the change upstream. > > The interesting thing is that the kernel still compiles fine with > gcc-4.5 and the relocation errors only appear if compiling with > gcc-4.6 or later. I had asked before on this forum what had changed > with gcc-4.6 that results in the extra usage of the small data area > but never got an answer. I am still curious to know. > > BTW, the phrase "to the tools" in the commit message makes me think > immediately of the tools directory (containing perf, etc.) which is > not what is intended. > > Matt: Are you able to collect up this and the other patches of Will > and get them sent to Linus? I noticed Matt agreed to this, but I was dropped from CC: https://lkml.org/lkml/2013/3/25/486 Any chance you could send the patches on please? Thanks, Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi guys, On Mon, Mar 18, 2013 at 04:11:15AM +, Michael Cree wrote: On 18/03/2013, at 10:48 AM, Will Deacon wrote: Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to the tools, which results in link failures due to impossible relocations when compiling anything but the most trivial configurations. I think many of us have been using -mlarge-data when compiling with gcc-4.6 or later so maybe it is time to get the change upstream. The interesting thing is that the kernel still compiles fine with gcc-4.5 and the relocation errors only appear if compiling with gcc-4.6 or later. I had asked before on this forum what had changed with gcc-4.6 that results in the extra usage of the small data area but never got an answer. I am still curious to know. BTW, the phrase to the tools in the commit message makes me think immediately of the tools directory (containing perf, etc.) which is not what is intended. Matt: Are you able to collect up this and the other patches of Will and get them sent to Linus? I noticed Matt agreed to this, but I was dropped from CC: https://lkml.org/lkml/2013/3/25/486 Any chance you could send the patches on please? Thanks, Will -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi! On a whim, I tried fiddling with ALPHA_LEGACY_START_ADDRESS. While this necessitates switching the system type to GENERIC_ALPHA, it makes the whole thing work. I suspect the change in segment size shifted stuff around enough to make the DP264 layout a "legacy" one. Regards, Tobias -- Sent from aboard the Culture ship ROU (Killer-class) Trade Surplus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi! On a whim, I tried fiddling with ALPHA_LEGACY_START_ADDRESS. While this necessitates switching the system type to GENERIC_ALPHA, it makes the whole thing work. I suspect the change in segment size shifted stuff around enough to make the DP264 layout a legacy one. Regards, Tobias -- Sent from aboard the Culture ship ROU (Killer-class) Trade Surplus -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi! On Tue, 26 Mar 2013, Michael Cree wrote: > On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: > > On Mon, 25 Mar 2013, Will Deacon wrote: > >> Any news on these? I've included an updated version of the first > >> patch, with > >> the Tested-by-tag and a tweaked commit message below. > > > > As a data point, I tried vanilla 3.8.4 on the weekend. With my > > usual config on a UP1500, it will fail at build time with > > relocation errors. If I remove -msmall-data (or replace it with > > ~big~), the machine hangs hard immediatly after aboot telling me > > it's starting it. > > You probably want the "alpha: Add irongate_io to to PCI bus resources" > patch posted by Matt Turner in the linux-alpha forum. Looks like it > has not been sent to Linus. Tried that, same effect. Interestingly, rebooting without a full init cycle crashes differently: aboot: loading uncompressed vmlinuz-3.8.4... aboot: loading compressed vmlinuz-3.8.4... aboot: PHDR 0 vaddr 0xfc31 offset 0x100 size 0x59e4ac aboot: bss at 0xfc8ae4ac, size 0x1814dc aboot: zero-filling 1578204 bytes at 0xfc8ae4ac aboot: starting kernel vmlinuz-3.8.4 with arguments root=/dev/md0 console=tty1 console=ttyS0 rootfstype=ext4 halted CPU 0 halt code = 5 HALT instruction executed PC = fc8b4e40 IrqVectorSet 60 Adding Vector ffe0 b impure halt code 5 >>> Without the irongate patch, the same (HALT on soft reboot, hard crash on full init) happens. Any hints on making the whole thing more debuggable are appreciated. Regards, Tobias -- One of the main causes of the fall of the roman empire was that, lacking zero, they had no way to indicate successful termination of their C programs. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi! On Tue, 26 Mar 2013, Michael Cree wrote: On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: On Mon, 25 Mar 2013, Will Deacon wrote: Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. You probably want the alpha: Add irongate_io to to PCI bus resources patch posted by Matt Turner in the linux-alpha forum. Looks like it has not been sent to Linus. Tried that, same effect. Interestingly, rebooting without a full init cycle crashes differently: aboot: loading uncompressed vmlinuz-3.8.4... aboot: loading compressed vmlinuz-3.8.4... aboot: PHDR 0 vaddr 0xfc31 offset 0x100 size 0x59e4ac aboot: bss at 0xfc8ae4ac, size 0x1814dc aboot: zero-filling 1578204 bytes at 0xfc8ae4ac aboot: starting kernel vmlinuz-3.8.4 with arguments root=/dev/md0 console=tty1 console=ttyS0 rootfstype=ext4 halted CPU 0 halt code = 5 HALT instruction executed PC = fc8b4e40 IrqVectorSet 60 Adding Vector ffe0 b impure halt code 5 Without the irongate patch, the same (HALT on soft reboot, hard crash on full init) happens. Any hints on making the whole thing more debuggable are appreciated. Regards, Tobias -- One of the main causes of the fall of the roman empire was that, lacking zero, they had no way to indicate successful termination of their C programs. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On 03/25/2013 03:55:28 PM, Matt Turner wrote: On Mon, Mar 25, 2013 at 1:06 PM, Michael Cree wrote: > On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: >> >> On Mon, 25 Mar 2013, Will Deacon wrote: >>> >>> Any news on these? I've included an updated version of the first patch, >>> with >>> the Tested-by-tag and a tweaked commit message below. >> >> >> As a data point, I tried vanilla 3.8.4 on the weekend. With my >> usual config on a UP1500, it will fail at build time with >> relocation errors. If I remove -msmall-data (or replace it with >> ~big~), the machine hangs hard immediatly after aboot telling me >> it's starting it. > > > You probably want the "alpha: Add irongate_io to to PCI bus resources" patch > posted by Matt Turner in the linux-alpha forum. Looks like it has not been > sent to Linus. > > If Matt does not respond in the next day or two I'll collect patches and > send them on to Linus. Yes, please do. I haven't powered on an alpha in a few months. What would it take to add Alpha system support to qemu? (It's got userspace, but not the system management mode instructions, mmu, or a board emulation.) Rob-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On Mon, Mar 25, 2013 at 1:06 PM, Michael Cree wrote: > On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: >> >> On Mon, 25 Mar 2013, Will Deacon wrote: >>> >>> Any news on these? I've included an updated version of the first patch, >>> with >>> the Tested-by-tag and a tweaked commit message below. >> >> >> As a data point, I tried vanilla 3.8.4 on the weekend. With my >> usual config on a UP1500, it will fail at build time with >> relocation errors. If I remove -msmall-data (or replace it with >> ~big~), the machine hangs hard immediatly after aboot telling me >> it's starting it. > > > You probably want the "alpha: Add irongate_io to to PCI bus resources" patch > posted by Matt Turner in the linux-alpha forum. Looks like it has not been > sent to Linus. > > If Matt does not respond in the next day or two I'll collect patches and > send them on to Linus. Yes, please do. I haven't powered on an alpha in a few months. Matt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: On Mon, 25 Mar 2013, Will Deacon wrote: Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. You probably want the "alpha: Add irongate_io to to PCI bus resources" patch posted by Matt Turner in the linux-alpha forum. Looks like it has not been sent to Linus. If Matt does not respond in the next day or two I'll collect patches and send them on to Linus. Cheers Michael. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi! On Mon, 25 Mar 2013, Will Deacon wrote: > Any news on these? I've included an updated version of the first patch, with > the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. I'll take a closer look later today, but there seems to be a very fundamental thing wrong with the startup code in these scenarios. Regards, Tobias -- "Brain, konban wa nani o shimashitai?" "Your Japanese is terrible, Pinky." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On Mon, Mar 18, 2013 at 04:11:15AM +, Michael Cree wrote: > On 18/03/2013, at 10:48 AM, Will Deacon wrote: > > Due to all of the goodness being packed into today's kernels, the > > resulting image isn't as slim as it once was. > > > > In light of this, don't pass -msmall-data to the tools, which > > results in > > link failures due to impossible relocations when compiling anything > > but > > the most trivial configurations. > > I think many of us have been using -mlarge-data when compiling with > gcc-4.6 or later so maybe it is time to get the change upstream. > > The interesting thing is that the kernel still compiles fine with > gcc-4.5 and the relocation errors only appear if compiling with > gcc-4.6 or later. I had asked before on this forum what had changed > with gcc-4.6 that results in the extra usage of the small data area > but never got an answer. I am still curious to know. > > BTW, the phrase "to the tools" in the commit message makes me think > immediately of the tools directory (containing perf, etc.) which is > not what is intended. > > Matt: Are you able to collect up this and the other patches of Will > and get them sent to Linus? Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. Will --->8 >From 8cbd016322bb01593795ec76cbdcbb52ac010203 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 4 Mar 2013 04:46:44 + Subject: [PATCH] alpha: makefile: don't enforce small data model for kernel builds Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to gcc, which otherwise results in link failures due to impossible relocations when compiling anything but the most trivial configurations. Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Tested-by: Thorsten Kranzkowski Signed-off-by: Will Deacon --- arch/alpha/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile index 4759fe7..2cc3cc5 100644 --- a/arch/alpha/Makefile +++ b/arch/alpha/Makefile @@ -12,7 +12,7 @@ NM := $(NM) -B LDFLAGS_vmlinux:= -static -N #-relax CHECKFLAGS += -D__alpha__ -m64 -cflags-y := -pipe -mno-fp-regs -ffixed-8 -msmall-data +cflags-y := -pipe -mno-fp-regs -ffixed-8 cflags-y += $(call cc-option, -fno-jump-tables) cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On Mon, Mar 18, 2013 at 04:11:15AM +, Michael Cree wrote: On 18/03/2013, at 10:48 AM, Will Deacon wrote: Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to the tools, which results in link failures due to impossible relocations when compiling anything but the most trivial configurations. I think many of us have been using -mlarge-data when compiling with gcc-4.6 or later so maybe it is time to get the change upstream. The interesting thing is that the kernel still compiles fine with gcc-4.5 and the relocation errors only appear if compiling with gcc-4.6 or later. I had asked before on this forum what had changed with gcc-4.6 that results in the extra usage of the small data area but never got an answer. I am still curious to know. BTW, the phrase to the tools in the commit message makes me think immediately of the tools directory (containing perf, etc.) which is not what is intended. Matt: Are you able to collect up this and the other patches of Will and get them sent to Linus? Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. Will ---8 From 8cbd016322bb01593795ec76cbdcbb52ac010203 Mon Sep 17 00:00:00 2001 From: Will Deacon will.dea...@arm.com Date: Mon, 4 Mar 2013 04:46:44 + Subject: [PATCH] alpha: makefile: don't enforce small data model for kernel builds Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to gcc, which otherwise results in link failures due to impossible relocations when compiling anything but the most trivial configurations. Cc: Richard Henderson r...@twiddle.net Cc: Ivan Kokshaysky i...@jurassic.park.msu.ru Cc: Matt Turner matts...@gmail.com Tested-by: Thorsten Kranzkowski dl8...@dl8bcu.de Signed-off-by: Will Deacon will.dea...@arm.com --- arch/alpha/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile index 4759fe7..2cc3cc5 100644 --- a/arch/alpha/Makefile +++ b/arch/alpha/Makefile @@ -12,7 +12,7 @@ NM := $(NM) -B LDFLAGS_vmlinux:= -static -N #-relax CHECKFLAGS += -D__alpha__ -m64 -cflags-y := -pipe -mno-fp-regs -ffixed-8 -msmall-data +cflags-y := -pipe -mno-fp-regs -ffixed-8 cflags-y += $(call cc-option, -fno-jump-tables) cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 -- 1.8.0 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
Hi! On Mon, 25 Mar 2013, Will Deacon wrote: Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. I'll take a closer look later today, but there seems to be a very fundamental thing wrong with the startup code in these scenarios. Regards, Tobias -- Brain, konban wa nani o shimashitai? Your Japanese is terrible, Pinky. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: On Mon, 25 Mar 2013, Will Deacon wrote: Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. You probably want the alpha: Add irongate_io to to PCI bus resources patch posted by Matt Turner in the linux-alpha forum. Looks like it has not been sent to Linus. If Matt does not respond in the next day or two I'll collect patches and send them on to Linus. Cheers Michael. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On Mon, Mar 25, 2013 at 1:06 PM, Michael Cree mc...@orcon.net.nz wrote: On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: On Mon, 25 Mar 2013, Will Deacon wrote: Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. You probably want the alpha: Add irongate_io to to PCI bus resources patch posted by Matt Turner in the linux-alpha forum. Looks like it has not been sent to Linus. If Matt does not respond in the next day or two I'll collect patches and send them on to Linus. Yes, please do. I haven't powered on an alpha in a few months. Matt -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On 03/25/2013 03:55:28 PM, Matt Turner wrote: On Mon, Mar 25, 2013 at 1:06 PM, Michael Cree mc...@orcon.net.nz wrote: On 26/03/2013, at 4:09 AM, Tobias Klausmann wrote: On Mon, 25 Mar 2013, Will Deacon wrote: Any news on these? I've included an updated version of the first patch, with the Tested-by-tag and a tweaked commit message below. As a data point, I tried vanilla 3.8.4 on the weekend. With my usual config on a UP1500, it will fail at build time with relocation errors. If I remove -msmall-data (or replace it with ~big~), the machine hangs hard immediatly after aboot telling me it's starting it. You probably want the alpha: Add irongate_io to to PCI bus resources patch posted by Matt Turner in the linux-alpha forum. Looks like it has not been sent to Linus. If Matt does not respond in the next day or two I'll collect patches and send them on to Linus. Yes, please do. I haven't powered on an alpha in a few months. What would it take to add Alpha system support to qemu? (It's got userspace, but not the system management mode instructions, mmu, or a board emulation.) Rob-- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On Sun, Mar 17, 2013 at 09:48:46PM +, Will Deacon wrote: > Due to all of the goodness being packed into today's kernels, the > resulting image isn't as slim as it once was. > > In light of this, don't pass -msmall-data to the tools, which results in > link failures due to impossible relocations when compiling anything but > the most trivial configurations. I use the same patch locally for quite some time, so Tested-by: Thorsten Kranzkowski > > Cc: Richard Henderson > Cc: Ivan Kokshaysky > Cc: Matt Turner > Signed-off-by: Will Deacon > --- > arch/alpha/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile > index 4759fe7..2cc3cc5 100644 > --- a/arch/alpha/Makefile > +++ b/arch/alpha/Makefile > @@ -12,7 +12,7 @@ NM := $(NM) -B > > LDFLAGS_vmlinux := -static -N #-relax > CHECKFLAGS += -D__alpha__ -m64 > -cflags-y := -pipe -mno-fp-regs -ffixed-8 -msmall-data > +cflags-y := -pipe -mno-fp-regs -ffixed-8 > cflags-y += $(call cc-option, -fno-jump-tables) > > cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 -- | Thorsten KranzkowskiInternet: dl8...@dl8bcu.de | | Mobile: ++49 170 1876134 Snail: Kiebitzstr. 14, 49324 Melle, Germany | | Ampr: dl8bcu@db0lj.#rpl.deu.eu, dl8...@marvin.dl8bcu.ampr.org [44.130.8.19] | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On Sun, Mar 17, 2013 at 09:48:46PM +, Will Deacon wrote: Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to the tools, which results in link failures due to impossible relocations when compiling anything but the most trivial configurations. I use the same patch locally for quite some time, so Tested-by: Thorsten Kranzkowski dl8...@dl8bcu.de Cc: Richard Henderson r...@twiddle.net Cc: Ivan Kokshaysky i...@jurassic.park.msu.ru Cc: Matt Turner matts...@gmail.com Signed-off-by: Will Deacon will.dea...@arm.com --- arch/alpha/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile index 4759fe7..2cc3cc5 100644 --- a/arch/alpha/Makefile +++ b/arch/alpha/Makefile @@ -12,7 +12,7 @@ NM := $(NM) -B LDFLAGS_vmlinux := -static -N #-relax CHECKFLAGS += -D__alpha__ -m64 -cflags-y := -pipe -mno-fp-regs -ffixed-8 -msmall-data +cflags-y := -pipe -mno-fp-regs -ffixed-8 cflags-y += $(call cc-option, -fno-jump-tables) cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 -- | Thorsten KranzkowskiInternet: dl8...@dl8bcu.de | | Mobile: ++49 170 1876134 Snail: Kiebitzstr. 14, 49324 Melle, Germany | | Ampr: dl8bcu@db0lj.#rpl.deu.eu, dl8...@marvin.dl8bcu.ampr.org [44.130.8.19] | -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On 18/03/2013, at 10:48 AM, Will Deacon wrote: Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to the tools, which results in link failures due to impossible relocations when compiling anything but the most trivial configurations. I think many of us have been using -mlarge-data when compiling with gcc-4.6 or later so maybe it is time to get the change upstream. The interesting thing is that the kernel still compiles fine with gcc-4.5 and the relocation errors only appear if compiling with gcc-4.6 or later. I had asked before on this forum what had changed with gcc-4.6 that results in the extra usage of the small data area but never got an answer. I am still curious to know. BTW, the phrase "to the tools" in the commit message makes me think immediately of the tools directory (containing perf, etc.) which is not what is intended. Matt: Are you able to collect up this and the other patches of Will and get them sent to Linus? Cheers Michael. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] alpha: makefile: don't enforce small data model for kernel builds
On 18/03/2013, at 10:48 AM, Will Deacon wrote: Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to the tools, which results in link failures due to impossible relocations when compiling anything but the most trivial configurations. I think many of us have been using -mlarge-data when compiling with gcc-4.6 or later so maybe it is time to get the change upstream. The interesting thing is that the kernel still compiles fine with gcc-4.5 and the relocation errors only appear if compiling with gcc-4.6 or later. I had asked before on this forum what had changed with gcc-4.6 that results in the extra usage of the small data area but never got an answer. I am still curious to know. BTW, the phrase to the tools in the commit message makes me think immediately of the tools directory (containing perf, etc.) which is not what is intended. Matt: Are you able to collect up this and the other patches of Will and get them sent to Linus? Cheers Michael. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
