Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from linaro to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is executing fine on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 http://www.ti.com/product/OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
On 19 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from linaro to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is executing fine on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
How do you build your hello_world? Is it ARM or THUMB?
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
When I build hello_world application along with u-boot for ARM mode, it executes fine on target, But, when I build it for THUMB mode, it generates "undefined instruction" exception.
Thank you.
On Fri, Dec 20, 2013 at 8:38 AM, Zhenqiang Chen zhenqiang.chen@linaro.orgwrote:
On 19 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from
linaro
to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is executing
fine
on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
How do you build your hello_world? Is it ARM or THUMB?
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
My understanding is that your u-boot is built in THUMB mode and also run in THUMB mode now, but your helloworld application is still ARM code. Then under thumb mode u-boot, you issue command "go 82000000 hello" to run an ARM application. Is my understanding correct?
If correct, my gut feeling is it might be a problem related to ARM/Thumb mode switch.
BR, Terry
From: Parimala Baggiri [mailto:baggiriparimala@gmail.com] Sent: Friday, December 20, 2013 12:25 PM To: Zhenqiang Chen Cc: linaro-toolchain; Terry Guo Subject: Re: ARM vs THUMB builds
When I build hello_world application along with u-boot for ARM mode, it executes fine on target, But, when I build it for THUMB mode, it generates "undefined instruction" exception. Thank you.
On Fri, Dec 20, 2013 at 8:38 AM, Zhenqiang Chen <zhenqiang.chen@linaro.orgmailto:zhenqiang.chen@linaro.org> wrote: On 19 December 2013 13:36, Parimala Baggiri <baggiriparimala@gmail.commailto:baggiriparimala@gmail.com> wrote:
Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from linaro to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is executing fine on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
How do you build your hello_world? Is it ARM or THUMB?
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
linaro-toolchain mailing list linaro-toolchain@lists.linaro.orgmailto:linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782
Hello Terry,
U-boot is in thumb mode and the THUMB mode application generates "undefined instruction" exception. U-boot is in thumb mode and an ARM mode application is running fine in this environment.
Thank you.
Regards, Parimala
On Fri, Dec 20, 2013 at 10:40 AM, Terry Guo Terry.Guo@arm.com wrote:
My understanding is that your u-boot is built in THUMB mode and also run in THUMB mode now, but your helloworld application is still ARM code. Then under thumb mode u-boot, you issue command “go 82000000 hello” to run an ARM application. Is my understanding correct?
If correct, my gut feeling is it might be a problem related to ARM/Thumb mode switch.
BR,
Terry
*From:* Parimala Baggiri [mailto:baggiriparimala@gmail.com] *Sent:* Friday, December 20, 2013 12:25 PM *To:* Zhenqiang Chen *Cc:* linaro-toolchain; Terry Guo *Subject:* Re: ARM vs THUMB builds
When I build hello_world application along with u-boot for ARM mode, it executes fine on target, But, when I build it for THUMB mode, it generates "undefined instruction" exception.
Thank you.
On Fri, Dec 20, 2013 at 8:38 AM, Zhenqiang Chen zhenqiang.chen@linaro.org wrote:
On 19 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from
linaro
to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is executing
fine
on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
How do you build your hello_world? Is it ARM or THUMB?
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782
Parimala,
Can you try linaro toolchain? Please find gcc-linaro-arm-none-eabi-4.8-2013.11* at http://releases.linaro.org/13.11/components/toolchain/binaries/
Thanks! -Zhenqiang
On 20 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello Terry,
U-boot is in thumb mode and the THUMB mode application generates "undefined instruction" exception. U-boot is in thumb mode and an ARM mode application is running fine in this environment.
Thank you.
Regards, Parimala
On Fri, Dec 20, 2013 at 10:40 AM, Terry Guo Terry.Guo@arm.com wrote:
My understanding is that your u-boot is built in THUMB mode and also run in THUMB mode now, but your helloworld application is still ARM code. Then under thumb mode u-boot, you issue command “go 82000000 hello” to run an ARM application. Is my understanding correct?
If correct, my gut feeling is it might be a problem related to ARM/Thumb mode switch.
BR,
Terry
From: Parimala Baggiri [mailto:baggiriparimala@gmail.com] Sent: Friday, December 20, 2013 12:25 PM To: Zhenqiang Chen Cc: linaro-toolchain; Terry Guo Subject: Re: ARM vs THUMB builds
When I build hello_world application along with u-boot for ARM mode, it executes fine on target, But, when I build it for THUMB mode, it generates "undefined instruction" exception.
Thank you.
On Fri, Dec 20, 2013 at 8:38 AM, Zhenqiang Chen zhenqiang.chen@linaro.org wrote:
On 19 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from linaro to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is executing fine on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
How do you build your hello_world? Is it ARM or THUMB?
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782
Hello Zhenqiang,
Same problem exists even with the toolchain version you mentioned gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
As I got pre-built toolchain, host machine's gcc version should not have any effect on this behaviour, am I correct?
Regards, Parimala
On Fri, Dec 20, 2013 at 11:11 AM, Zhenqiang Chen zhenqiang.chen@linaro.orgwrote:
Parimala,
Can you try linaro toolchain? Please find gcc-linaro-arm-none-eabi-4.8-2013.11* at http://releases.linaro.org/13.11/components/toolchain/binaries/
Thanks! -Zhenqiang
On 20 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello Terry,
U-boot is in thumb mode and the THUMB mode application generates
"undefined
instruction" exception. U-boot is in thumb mode and an ARM mode application is running fine in
this
environment.
Thank you.
Regards, Parimala
On Fri, Dec 20, 2013 at 10:40 AM, Terry Guo Terry.Guo@arm.com wrote:
My understanding is that your u-boot is built in THUMB mode and also run in THUMB mode now, but your helloworld application is still ARM code.
Then
under thumb mode u-boot, you issue command “go 82000000 hello” to run
an ARM
application. Is my understanding correct?
If correct, my gut feeling is it might be a problem related to ARM/Thumb mode switch.
BR,
Terry
From: Parimala Baggiri [mailto:baggiriparimala@gmail.com] Sent: Friday, December 20, 2013 12:25 PM To: Zhenqiang Chen Cc: linaro-toolchain; Terry Guo Subject: Re: ARM vs THUMB builds
When I build hello_world application along with u-boot for ARM mode, it executes fine on target, But, when I build it for THUMB mode, it
generates
"undefined instruction" exception.
Thank you.
On Fri, Dec 20, 2013 at 8:38 AM, Zhenqiang Chen zhenqiang.chen@linaro.org wrote:
On 19 December 2013 13:36, Parimala Baggiri baggiriparimala@gmail.com wrote:
Hello,
I am using the pre-built toolchain gcc-arm-none-eabi-4_6-2012q2 from linaro to compile u-boot (u-boot-linaro-stable) and to compile my standalone applications to run on target(PandaBoard ES rev b2)
hello_world standalone application which comes with u-boot is
executing
fine on target when I disable CONFIG_SYS_THUMB_BUILD, but when I enable it, target gets reset with following information
How do you build your hello_world? Is it ARM or THUMB?
Panda # go 82000000 hello ## Starting application at 0x82000000 ... undefined instruction pc : [<8200000c>] lr : [<bff83147>] sp : bfeffe40 ip : bfeffc10 fp : 00000000 r10: 00000003 r9 : bffac954 r8 : bfefff68 r7 : bff01d88 r6 : 82000000 r5 : bff01d8c r4 : 00000003 r3 : 82000000 r2 : bff01d8c r1 : bff01d8c r0 : 00000002 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
resetting ...
U-Boot SPL 2013.01.-rc1-g0f45941 (Dec 17 2013 - 14:23:41) OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin reading u-boot.bin
......
Can anyone please help me why thumb mode build is failing?
linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy
the
information in any medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1
9NJ,
Registered in England & Wales, Company No: 2548782
linaro-toolchain@lists.linaro.org
-
Parimala Baggiri -
Terry Guo -
Zhenqiang Chen