search for: osdevic

Displaying 20 results from an estimated 51 matches for "osdevic".

Did you mean: osdevice
2013 Mar 12
0
[LLVMdev] LNT BenchmarkGame
----- Original Message ----- > From: "Daniel Dunbar" <daniel at zuster.org> > To: "Renato Golin" <renato.golin at linaro.org> > Cc: "Hal Finkel" <hfinkel at anl.gov>, "Marshall Clow" <mclow.lists at gmail.com>, "LLVM Dev" <llvmdev at cs.uiuc.edu> > Sent: Tuesday, March 12, 2013 12:30:12 PM > Subject: Re:
2013 Mar 12
5
[LLVMdev] LNT BenchmarkGame
On Tue, Mar 12, 2013 at 10:23 AM, Renato Golin <renato.golin at linaro.org>wrote: > On 12 March 2013 16:48, Daniel Dunbar <daniel at zuster.org> wrote: > >> The former mode is historically what the test suite did, the latter mode >> is substantially faster (and independent of bugs in the native CC). >> > > Yes, I agree this is better for many cases, but
2016 May 10
2
Trying to build bootable iso but very confused by syslinux documentation
On 05/03/2016 02:31 AM, Thomas Schmitt via Syslinux wrote: > Hi, > > John Lewis wrote: >> https://help.ubuntu.com/community/LiveCDCustomizationFromScratch >> >> The show stopper for me was the mkisofs because the closest command I >> had available was xorrisofs and I think a switch was different. > If you have questions about xorrisofs, then just ask me. :))
2015 Sep 11
2
adding prefixes to certain instructions x86 -- where to start?
Hello, I’ve been using LLVM IR passes for my research for about a year now, but for my next step I think I might have to dig into a backend. I'm hoping someone could give me a pointer on how to get started. The thing I would like to do is add and override address-size override prefix [1] to a given x86-64 instruction. I’m hoping I can do something like: 1) Mark some IR instructions with
2016 Apr 20
2
Link using a linker script
For example something like STARTUP ( http://wiki.osdev.org/Linker_Scripts#STARTUP) is not accepted by the LLVM LLD. :-/ On Wed, Apr 20, 2016 at 9:08 PM, Sky Flyer <skylake007 at gmail.com> wrote: > Yeah I found it, that's nice. Thanks a milion. > Could you please tell me how can I specify my bootstrap (startup code) in > the linking process? > > > On Wed, Apr 20, 2016
2013 Mar 12
2
[LLVMdev] LNT BenchmarkGame
On 12 March 2013 19:21, Hal Finkel <hfinkel at anl.gov> wrote: > +1 > > There are a couple of example implementations here which are only a few > lines long: > http://wiki.osdev.org/Random_Number_Generator I was going to rant about the quality of simple LCGs but it seems that *all* standard implementations rely on that, so the argument of using a standard library against a
2016 May 10
0
Trying to build bootable iso but very confused by syslinux documentation
Hi, > I only have the vaguest > understand of what the flags in the man page of xorrisofs and xorriso are. The options reflect a long tradition of program mkisofs and the winded road of boot firmware entry points in ISO 9660 filesystems. So one cannot expect to find much of a common system in them. > there doesn't seem to > exist a hello word like exercise that is simple and
2014 Jan 22
3
wiki account request
Hi, me: > > Please enable editing. Gene Cumm: > Done. Thanks. I have now edited http://www.syslinux.org/wiki/index.php/Hardware_Compatibility#USB-Miscellaneous ------------------------------------------------------------ Next i'll try to develop a user oriented hint for SYSLINUX#Creating_a_Bootable_Disk which takes into respect the opinions of Ady, Mattias, me, and of any
2020 Mar 02
2
[PATCH] drm/bochs: Remove vga write
On Fri, Feb 28, 2020 at 1:57 AM Gerd Hoffmann <kraxel at redhat.com> wrote: > > On Thu, Feb 27, 2020 at 01:04:54PM -0800, Alistair Francis wrote: > > The QEMU model for the Bochs display has no VGA memory section at offset > > 0x400 [1]. By writing to this register Linux can create a write to > > unassigned memory which depending on machine and architecture can result
2020 Mar 02
2
[PATCH] drm/bochs: Remove vga write
On Fri, Feb 28, 2020 at 1:57 AM Gerd Hoffmann <kraxel at redhat.com> wrote: > > On Thu, Feb 27, 2020 at 01:04:54PM -0800, Alistair Francis wrote: > > The QEMU model for the Bochs display has no VGA memory section at offset > > 0x400 [1]. By writing to this register Linux can create a write to > > unassigned memory which depending on machine and architecture can result
2007 May 29
6
NCQ performance
I''ve been looking into the performance impact of NCQ. Here''s what i found out: http://blogs.sun.com/erickustarz/entry/ncq_performance_analysis Curiously, there''s not too much performance data on NCQ available via a google search ... enjoy, eric
2007 Mar 15
20
C''mon ARC, stay small...
Running an mmap-intensive workload on ZFS on a X4500, Solaris 10 11/06 (update 3). All file IO is mmap(file), read memory segment, unmap, close. Tweaked the arc size down via mdb to 1GB. I used that value because c_min was also 1GB, and I was not sure if c_max could be larger than c_min....Anyway, I set c_max to 1GB. After a workload run....: > arc::print -tad { . . . ffffffffc02e29e8
2015 Sep 11
2
adding prefixes to certain instructions x86 -- where to start?
I'm trying to make a security sandbox. For example, lets say my program has a LoadInst in the LLVM IR and I know I want to confine the address range this LoadInst is accessing. Maybe that LoadInst gets emitted as a MOV machine code instruction by the backend. During execution an attacker could potentially control the operands of the MOV instruction through some exploit, but usually he
2007 May 14
37
Lots of overhead with ZFS - what am I doing wrong?
I was trying to simply test bandwidth that Solaris/ZFS (Nevada b63) can deliver from a drive, and doing this: dd if=(raw disk) of=/dev/null gives me around 80MB/s, while dd if=(file on ZFS) of=/dev/null gives me only 35MB/s!?. I am getting basically the same result whether it is single zfs drive, mirror or a stripe (I am testing with two Seagate 7200.10 320G drives hanging off the same interface
2014 Feb 02
2
xorriso or genisoimage syntax assistance
Hi, > # Most linux distros dont have `mkisofs' Or they have genisoimage under the name "mkisofs". (e.g. Debian, Archlinux) > mkisofs \ > -o output.iso \ > -no-emul-boot \ > -boot-info-table \ > -boot-load-size 4 \ > -c isolinux/boot.cat \ > -b isolinux/isolinux.bin \ > ISO_root I would add option -R or -r for Rock Ridge names and file
2009 Apr 05
2
[LLVMdev] How the LLVM Compiler Infrastructure Works
FYI, http://www.informit.com/articles/article.aspx?p=1215438 -Rajika -- http://wso2.org/ http://llvm.org/ http://www.osdev.org/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090405/79ddb769/attachment.html>
2013 Mar 13
0
[LLVMdev] LNT BenchmarkGame
On Mar 12, 2013, at 12:48, Renato Golin <renato.golin at linaro.org> wrote: On 12 March 2013 19:21, Hal Finkel <hfinkel at anl.gov> wrote: > +1 > > There are a couple of example implementations here which are only a few > lines long: > http://wiki.osdev.org/Random_Number_Generator I was going to rant about the quality of simple LCGs but it seems that *all* standard
2016 Dec 29
0
isohybrid boot from logical partition
Hi, Duncan Elliot wrote: > What is the thought process of clearing the ISO MBR? It is not necessary in the partok case, because the partition to which you copy the image encloses the ISO, exposes it for mounting, and protects it from partition editors. (Another idea from assembler riddling turned out to be a red herring.) Without understanding the language or the BIOS habits of MBR
2020 Mar 03
0
[PATCH] drm/bochs: Remove vga write
On Mon, Mar 02, 2020 at 02:14:02PM -0800, Alistair Francis wrote: > On Fri, Feb 28, 2020 at 1:57 AM Gerd Hoffmann <kraxel at redhat.com> wrote: > > > > On Thu, Feb 27, 2020 at 01:04:54PM -0800, Alistair Francis wrote: > > > The QEMU model for the Bochs display has no VGA memory section at offset > > > 0x400 [1]. By writing to this register Linux can create a
2014 Feb 02
0
xorriso or genisoimage syntax assistance
On Sun, Feb 2, 2014 at 2:31 AM, Thomas Schmitt <scdbackup at gmx.net> wrote: > Hi, > > > # Most linux distros dont have `mkisofs' ( > > Or they have genisoimage under the name "mkisofs". > (e.g. Debian, Archlinux) > ... > I would add option -R or -r for Rock Ridge names and file attributes. > This will make appear the files with their original