答复:Re: [uClinux-dev] How to buil d bFLT without flag:Has-PIC-GOT
How to use uc53281(freescale)-EVM thanks -- 在2009-01-05，David McCullough david_mccullo...@securecomputing.com 写道： Jivin Yuan-Lung Li lays it down ... Dear DavidM, I have other questions about the romfs.2.4.x.gz on the website http://www.uclinux.org/pub/uClinux/utilities/armulator/ 1. What version of toolchain used to build the romfs.2.4.x? Almost certainly something very old. gcc-2.95.3 based, probably this one: http://www.uclinux.org/pub/uClinux/arm-elf-tools/arm-elf-tools-20030314.sh 2. What kind of vendor setting used to build the romfs.2.4.x? GDB/ARMulator or GDB/ARMulator-EB? Follow the ARMulator thread in this article: http://www.ucdot.org/archive/tb/tb20020807.shtml This was done using uClinux-dist-20020701. All the settings should be in the vendors/GDB/Armulator directory. Edit config.arch to enable/disable XIP. 3. Any other particular setting in menuconfigs to affect the romfs.2.4.x? Thank you in advance for kindly replying. :-) All in the above, sorry for a tardy response, vacation time ;-) Cheers, Davidm 2008/12/27 Yuan-Lung Li dra...@gmail.com Dear all, I have search the solution for this problem about 2 months... Here is my environment: Toolchain: arm-linux-tools-20070808.tar.gz fownloaded from http://ftp.snapgear.org/pub/snapgear/tools/arm-linux/arm-linux-tools-20070808.tar.gz uClinux Distribution: uClinux-dist-20080808.tar.gz downloaded from http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20080808.tar.bz2 Now I got stuck on the booting after /bin/init running. Seems the init launch the sash shell and then do_rc in the /etc/rc in the romfs. After first command hostname executed, the program counter goes some invalid place. I am using the non-XIP version of kernel. I did some trial as below: 1. replace the first command as ls /bin or cat /etc/motd, the main function of them works well but the platform dead after return. 2. I download the romfs romfs.2.4.x from http://www.uclinux.org/pub/uClinux/utilities/armulator/romfs.2.4.x.gz The OS start and I see the promt!!! 3. I use the arm-linux-flthdr to check the binary in romfs.2.4.x every bFlt in /bin has the header below: /mnt/bin/init Magic:bFLT Rev: 4 Build Date: not specified Entry:0x50 Data Start: 0x3050 Data End: 0x33b0 BSS End: 0x48b0 Stack Size: 0x1000 Reloc Start: 0x33b0 Reloc Count: 0x94 Flags:0x1 ( Load-to-Ram ) 4. I also check the binaries in my romfs directory, evey bFlt in romfs/bin has the header below: romfs/bin/init Magic:bFLT . Flags:0x2 ( Has-PIC-GOT ) 5. modifying the vendors/config/armnommu/config.arch to make the LDFLAGS+= -Wl,-elf2flt=-r, the build result of the romfs bFlt as below: romfs/bin/init Magic:bFLT . Flags:0x3 ( Load-to-Ram Has-PIC-GOT ) The romfs still made my platform dead in nasty place. 6. I have trace many discussion, some kind like arm-linux-flthdr -r romfs/init, the result is the same as trial number 5. How can I build the romfs with the bFlt in pure Load-to-Ram(aka the Flags:0x1)? Many thanks for any idea and replying. Drag ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev -- David McCullough, david_mccullo...@securecomputing.com, Ph:+61 734352815 Secure Computing - SnapGear http://www.uCdot.org http://www.snapgear.com ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
[uClinux-dev] uClinux 2.6.25-uc0 performance problem on MCF 5274/5275
Hi all, I have performance problems with applications on this kernel(uClinux 2.6.25-uc0). First of all, I have custom made board with this features: ColdFire 5274 @ 150 MHz External Bus Frequency 75 MHz uClinux 2.6.25 boot up and work perfectly stable, but very slow. For this board i have also 2.4.x kernel compiled, and it works more faster ( ~ 2-20 times faster, if different test application). After reading maillist, i find, that some people have equals problems, and their reason were - disabled cache. But in my case, cache enabled in start process normally. Calibration delay calculate good value: Calibrating delay loop... 98.71 BogoMIPS (lpj=493568) Also, if i disabled cache in /include/asm-m68knommu/mcfcache.h, i got looks-like normal, with disabled cache, value: Calibrating delay loop... 5.82 BogoMIPS So, I have drawn a conclusion, that cache enables good. Now, about performance. I test it with some applications. 1. Dhrystone test. With it, i have 4065 dhrystones/second, that critically small for this CPU. But i curious, that, when a disabled cache, the result same.. As though like cache at just flushed or worked incorrect. 2. Simple forever cycle with 1 value in memory incremented. This test, also show near ~5 real MISP performance. When i try to watch assess to external memory by CPU, i saw, that, it work with external RAM(where this application contain) everytime - but i think that, simple application with 5 command + 1 value memory must being in cache, and CPU must work with cache only. 3. Some real/work application. They do massive processing/moving data, working with peripheral, etc. I also have quite bad performance. Those applications runs at 2.4.x kernel at ~4 times faster. So, conclusion with it. 1) I think, that i can't have problems with hardware - because, 2.4.x kernel work fast. 2) I have enabled cache at start process - 98 BogoMIPS good value for my CPU, also 2.4 kernel calculate same result. Now i have question, maybe somebody have same problems at this kernel? Maybe 2.6.xx so slow, and ways to speed up it use old kernel or modern/faster CPU?Maybe some bugs in poring it to ColdFire family?Etc? Maybe it problem with cache at working process? Some drivers, for example, can flush cache..anyone have equal problem? About it, i will check it with kernel build for 5275EVB, but i think, that result will be same, because, a removed all i can drivers/modules form kernel, that almost empty kernel starts, and after it i run Dhrystone test, and get same result. Maybe it's a toolchain problem? I use m68k-uclinux-tools-20061214.sh, they have some minor problems, maybe reason with they? But, my second test with simple application excludes this variant. If someone had those problems I will be glad for any help. And my kernel messages at result: / cat /proc/kmsg 5Linux version 2.6.25-uc0 (wa...@arch) (gcc version 4.1.1) #36 Mon Jan 5 13:05:16 PST 9 6 4 4uClinux/COLDFIRE(m5274/5275) 6COLDFIRE port done by Greg Ungerer, g...@snapgear.com 6Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne 7On node 0 totalpages: 8192 7 DMA zone: 0 pages used for memmap 7 Normal zone: 64 pages used for memmap 7 Normal zone: 8128 pages, LIFO batch:0 7 Movable zone: 0 pages used for memmap 4Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128 5Kernel command line: 6Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) 6Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) 6Memory available: 29264k/32768k RAM, (1504k kernel code, 243k data) 7Calibrating delay loop... 98.71 BogoMIPS (lpj=493568) 4Mount-cache hash table entries: 512 6net_namespace: 144 bytes 6NET: Registered protocol family 16 6NET: Registered protocol family 2 6IP route cache hash table entries: 1024 (order: 0, 4096 bytes) 6TCP established hash table entries: 1024 (order: 1, 8192 bytes) 6TCP bind hash table entries: 1024
[uClinux-dev] DQ5 Checks in mtd drivers
I have just managed to update a system from an older 2.4 kernel to the most recent 2.4.34.5-uc0 version. It looks like there were some checks added to the AMD FLASH drivers that totally break SST FLASH devices. 1) Where is the best place to complain? Was the old functionality hidden somewhere? 2) Where is the best place to submit the patch to support SST 39VF320x and 39VF640x devices? ... Glenn -- Glenn Henshaw Logical Outcome Ltd. e: li...@logicaloutcome.ca w: www.logicaloutcome.ca ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
[uClinux-dev] [PATCH] user/Kconfig: fix typo in mkfs.jffs2 entry
Signed-off-by: Mike Frysinger vap...@gentoo.org --- user/Kconfig |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/user/Kconfig b/user/Kconfig index fc1135b..632ec1e 100644 --- a/user/Kconfig +++ b/user/Kconfig @@ -478,7 +478,7 @@ config USER_MTDUTILS_MKFSJFFS depends on USER_MTDUTILS config USER_MTDUTILS_MKFSJFFS2 - bool mkfs.jff2 + bool mkfs.jffs2 depends on USER_MTDUTILS config USER_MTDUTILS_NFTLDUMP -- 1.6.0.6 ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
Re: [uClinux-dev] [PATCH] user/Kconfig: fix typo in mkfs.jffs2 entry
Jivin Mike Frysinger lays it down ... Signed-off-by: Mike Frysinger vap...@gentoo.org Applied, Thanks, Davidm --- user/Kconfig |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/user/Kconfig b/user/Kconfig index fc1135b..632ec1e 100644 --- a/user/Kconfig +++ b/user/Kconfig @@ -478,7 +478,7 @@ config USER_MTDUTILS_MKFSJFFS depends on USER_MTDUTILS config USER_MTDUTILS_MKFSJFFS2 - bool mkfs.jff2 + bool mkfs.jffs2 depends on USER_MTDUTILS config USER_MTDUTILS_NFTLDUMP -- 1.6.0.6 ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev -- David McCullough, david_mccullo...@securecomputing.com, Ph:+61 734352815 Secure Computing - SnapGear http://www.uCdot.org http://www.snapgear.com ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
Re: [uClinux-dev] DQ5 Checks in mtd drivers
Hi Glenn, do you use CFI to detect your SST-Flash? I stumbled on this problem half a year ago on 2.6.x, I found out that SST has quite an interesting interpretation of the CFI-Standard. Their devices have both sectors and eraseblocks, and their CFI-Struct lists both, so the sum of all sector sizes appears to be the double of what the devices reports as its capacity and the kernel rejects it. Please find attached my patch for this, it is for 2.6.x but it will show the idea. It will partially disable CFI for the device and override the number of eraseblock sizes, then the detections works. Greetings Peter cfi_cmdset_0002.patch Description: Binary data cfi_probe.patch Description: Binary data On Jan 5, 2009, at 11:42 PM, Glenn Henshaw wrote: I have just managed to update a system from an older 2.4 kernel to the most recent 2.4.34.5-uc0 version. It looks like there were some checks added to the AMD FLASH drivers that totally break SST FLASH devices. 1) Where is the best place to complain? Was the old functionality hidden somewhere? 2) Where is the best place to submit the patch to support SST 39VF320x and 39VF640x devices? ... Glenn -- Glenn Henshaw Logical Outcome Ltd. e: li...@logicaloutcome.ca w: www.logicaloutcome.ca ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev ___ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
