similar to: LLVM and heap-allocated thread stacks

Displaying 20 results from an estimated 3000 matches similar to: "LLVM and heap-allocated thread stacks"

2012 Jun 29
0
[LLVMdev] Request for merge: GHC/ARM calling convention.
On 29 June 2012 17:46, Karel Gardas <karel.gardas at centrum.cz> wrote: > Yes and no. Shortly: original GHC/ARM/LLVM port was done by Stephen on > ARMv5/Qemu IIRC. I've later added whole VFP support and ARMv7 support. The > code in GHC is properly #ifdefed, so if there is no VFP available on pre > ARMv6, then it's not used. ie. GHC STG floating points regs are then >
2012 Jun 29
2
[LLVMdev] Request for merge: GHC/ARM calling convention.
Hi Renato, On 06/25/12 12:13 AM, Renato Golin wrote: > Hi Karel, > > I understand this patch has already been merged (to 3.0), so don't > take my question as stopping the merge to head, I'm just making sure I > got it right... The rest looks correct. > > + CCIfType<[v2f64], CCAssignToReg<[Q4, Q5]>>, > + CCIfType<[f64], CCAssignToReg<[D8, D9,
2019 Oct 16
6
Re: “Stripped-down” SSH (no encryption or authentication, just forwarding)
On 2019-10-15 20:00, asymptosis wrote: > On Tue, Oct 15, 2019 at 07:43:00PM -0400, Demi M. Obenour wrote: >> On 2019-10-15 19:11, Job Snijders wrote: >>> The S in SSH stands for secure. You are asking the wrong group of people. >>> You?ll have to resolve your issue in some other way. >>> >> This tool would only support running on stdin/stdout. Indeed,
2017 Jan 05
5
Tail calls and portability
I have been working on adding proper tail (via `become`) to rustc. I was able to make them work (some parts of the type checker aren't implemented yet). However, I ran into an LLVM-related problem. LLVM claims to support proper tail calls when fastcc is used — but only on i386, x86-64 and PowerPC. Is this accurate? Will proper tail calls be supported on WebAssembly? Are they supported on
2012 Feb 15
2
[LLVMdev] LLVM GHC Backend: Tables Next To Code
On Feb 15, 2012, at 12:16 PM, Chris Lattner <clattner at apple.com> wrote: > > On Feb 14, 2012, at 10:30 AM, David Terei wrote: > >> Hmm writing a blog post about TNTC is beyond the time I have right now. > > Sure, understandable. I'm surprised someone else hasn't already :) > >> Here is some high level documentation of the layout of Heap objects
2019 Oct 15
6
“Stripped-down” SSH (no encryption or authentication, just forwarding)
There have been many cases where I have found myself in need of a pure forwarding tool that can forward sockets over a single stream. In my use cases, this stream is already secure, so there is no need for the tool to do any encryption or authentication. One specific use-case was forwarding a Docker socket to another VM over QubesOS qrexec qrexec, which uses Xen shared memory, but there are
2012 Feb 14
3
[LLVMdev] LLVM GHC Backend: Tables Next To Code
Hmm writing a blog post about TNTC is beyond the time I have right now. Here is some high level documentation of the layout of Heap objects in GHC: http://hackage.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/HeapObjects#InfoTables With TNTC enabled we generate code for closures of this form: .text .align 8 .long Main_main1_srt-(Main_main1_info)+0 .long 0 .quad 4294967299 .quad 0
2012 Feb 15
0
[LLVMdev] LLVM GHC Backend: Tables Next To Code
On Feb 14, 2012, at 10:30 AM, David Terei wrote: > Hmm writing a blog post about TNTC is beyond the time I have right now. Sure, understandable. I'm surprised someone else hasn't already :) > Here is some high level documentation of the layout of Heap objects in GHC: > > http://hackage.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/HeapObjects#InfoTables > > With
2017 Apr 26
3
LLDB security and the use of an IPC library
LLDB currently uses a client-server architecture.  That appears fine, but runs into an annoying security problem: other users on the same machine can connect to the TCP socket and take over LLDB and thus the user’s system.  This means that LLDB is useless in multiuser enviromnents on Linux, such as academic computer labs. The immediate problem can be solved by using either HMAC authentication of
2015 Sep 06
2
POssible bug in the Arm code generator
Hi all, I do a little work on the Glasgow Haskell Compiler (GHC) which uses LLVM for the backend when compiling for Arm and some other targets. The reason I am posting to this list is that a GHC compiled program (using the LLVM backend) is getting an illegal instruction exception on the this instruction: ldr r0, [r0] According to the Arm archtecture manual:
2023 Feb 26
1
ssh host keys on cloned virtual machines
On Sat, Feb 25, 2023 at 12:14?PM Demi Marie Obenour <demiobenour at gmail.com> wrote: > > On 2/25/23 07:50, Nico Kadel-Garcia wrote: > > On Fri, Feb 24, 2023 at 10:01 AM Jochen Bern <Jochen.Bern at binect.de> wrote: > >> > >> On 24.02.23 12:58, Keine Eile wrote: > >>> does any one of you have a best practice on renewing ssh host keys on >
2012 Feb 15
0
[LLVMdev] LLVM GHC Backend: Tables Next To Code
> This is starting to look very similar to how ARM constant islands work, without the extra ugliness from how small the ARM immediate displacements are. > > -Jim Would there be any reason that this couldn't be seen as an opportunity to move the constant islands pass out of the ARM backend and make the target-independent constant pools (which ARM bypasses completely) more generic?
2019 Oct 15
2
Re: “Stripped-down” SSH (no encryption or authentication, just forwarding)
On 2019-10-15 19:11, Job Snijders wrote: > The S in SSH stands for secure. You are asking the wrong group of people. > You?ll have to resolve your issue in some other way. > This tool would only support running on stdin/stdout. Indeed, an idiomatic use-case would be to use it as the command argument to ssh(1). The assumption I am making is that anyone that can pass arbitrary data to
2023 May 21
2
SFTP support for subsecond times
On 5/10/23 08:50, Lucas Holt wrote: > On 5/10/23 4:36 AM, Antonio Larrosa wrote: >> Hello, >> >> This is probably a long email, but please bear with me. I plan to >> submit a patch and would like to explain what I will do before doing >> it so I don't lose time if there's some flaw in my plan. >> >> I currently use sshfs to mount directories
2019 Nov 03
2
scp, sftp, and special characters in filenames
I have not been able to get scp(1) to download a file with a newline in its name. I know that scp(1) requires that remote filenames be escaped for the shell, but that leads to protocol errors. I am also unable to get sftp(1) to handle such files. It fails with an ?unterminated quoted argument? error, no matter how I try to quote the newline. Furthermore, the SFTP CLI is not well-suited to
2023 Feb 25
1
ssh host keys on cloned virtual machines
On 2/25/23 07:50, Nico Kadel-Garcia wrote: > On Fri, Feb 24, 2023 at 10:01 AM Jochen Bern <Jochen.Bern at binect.de> wrote: >> >> On 24.02.23 12:58, Keine Eile wrote: >>> does any one of you have a best practice on renewing ssh host keys on >>> cloned machines? >>> I have a customer who never thought about that, while cloning all VMs >>>
2017 Dec 01
2
Some strange i64 behavior with arm 32bit. (Raspberry Pi)
Hi Tim, thanks for the swift response! @debug is defined in the same module, which makes this all the more confusing. The target information from the working example are: target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" target triple = "armv6kz--linux-gnueabihf" from the ghc produced module: target datalayout =
2017 Dec 16
2
Replace call stack with an equivalent on the heap?
Hello, I'm implementing a custom Haskell-to-LLVM compiler, and in my experimentation, noticed that GHC is much slower than clang certain examples, such as the ackermann function. However, from reading their respective IRs (Cmm for GHC and LLVM for clang), I don't really see much of a difference. Here is a link to the numbers. (n, m) are the parameters to the ackermann function
2015 Sep 07
2
POssible bug in the Arm code generator
Hi Erik, > GHC does not generate or use thumb instructions From you assembly dump, looks like the instructions are 2 bytes long, meaning it's Thumb code not ARM. - Denis. > Owen Shepherd wrote: > >> Pay closer attention to the instruction descriptions on the page you linked >> above: >> >> LDR{*type*}{*cond*}*Rt*, [*Rn* {, #*offset*}] ; immediate
2023 Apr 18
1
FIPS compliance efforts in Fedora and RHEL
On 4/18/23 05:05, Norbert Pocs wrote: > Hi OpenSSH mailing list, > > I would like to announce the newly introduced patch in Fedora rawhide [0] > for FIPS compliance efforts. The change will be introduced in an upcoming RHEL 9 > version. Why does Fedora care about FIPS 140? To me, this seems like it should be specific to RHEL and maybe CentOS Stream, not Fedora. My understanding