On Tue, Jun 21, 2011 at 03:43:58PM +0200, Denys Vlasenko wrote:
> commit dfcd741a5ad170f7fc4ccc0391d3dc92e2d5e3ab
> Author: Andi Kleen
> Date: Mon Jun 13 22:05:44 2011 +
>
> Enhance io_submit() decoding
>
> strace didn't decode important fields in the iocb passed to io_submit.
>
On Tue, Jun 21, 2011 at 08:21:26PM +0200, Denys Vlasenko wrote:
> Hi,
>
> Sometime ago expand_tcbtab/alloc_tcb were modified
> so that they never return failure (they will abort instead).
>
> This opens up a possibility for further simplifications.
>
> This patch is a simple one which gets rid o
On Tue, Jun 21, 2011 at 08:26:07PM +0200, Denys Vlasenko wrote:
> Hi,
>
> Sometime ago expand_tcbtab/alloc_tcb were modified
> so that they never return failure (they will abort instead).
>
> This opens up a possibility for further simplifications.
>
> This patch gets rid of fork_tcb() function.
On Wed, Jun 22, 2011 at 01:48:19PM +0200, Denys Vlasenko wrote:
[...]
> --- strace.6/util.c 2011-06-22 00:19:30.268714125 +0200
> +++ strace.7/util.c 2011-06-22 13:32:30.653923439 +0200
> @@ -1494,9 +1494,9 @@ setbpt(struct tcb *tcp)
> return 0;
> # endif
>
> - case SYS_cl
On Wed, Jun 22, 2011 at 01:42:20PM +0200, Denys Vlasenko wrote:
> Hi,
>
> TCB_FOLLOWFORK flag seems to be unnecessary, because we either follow
> all [v]forks/clones or don't follow any, therefore global variable
> followfork is an already existing indicator of what we want to do.
>
> This patch
On Thu, Jun 23, 2011 at 04:07:17PM +0200, Denys Vlasenko wrote:
> On Thu, 2011-06-23 at 17:26 +0400, Dmitry V. Levin wrote:
> > On Wed, Jun 22, 2011 at 01:48:19PM +0200, Denys Vlasenko wrote:
> > [...]
> > > --- strace.6/util.c 2011-06-22 00:19:30.268714125 +0200
&
On Fri, Jun 24, 2011 at 04:41:17PM +0200, Denys Vlasenko wrote:
> Current debug logging looks like this:
>
> # ./strace -d -o/dev/null /bin/true
[...]
> Every stop takes two lines.
>
> This patch changes it so that every waitpid result is shown on one line.
> It also adds debug output on alloc/dr
On Wed, Jul 20, 2011 at 07:10:30AM +1000, Steve Bennett wrote:
> Thanks, but it also needs some extra checks and some changes to defs.h
Thanks, I've added checks for additional PTRACE_* constants.
> See attached.
PTRACE_EVENT_EXIT is not 4 but 6. I've added fallback definitions based
on linux/p
On Wed, Jul 20, 2011 at 08:28:59AM +1000, Steve Bennett wrote:
> On 20/07/2011, at 8:25 AM, Dmitry V. Levin wrote:
> > On Wed, Jul 20, 2011 at 07:10:30AM +1000, Steve Bennett wrote:
> >> Thanks, but it also needs some extra checks and some changes to defs.h
> >
> >
On Wed, Jul 20, 2011 at 07:18:27PM +0200, Denys Vlasenko wrote:
> Dmitry, can you review the following patches
> I sent about a month ago?
Sorry for making you wait, I apparently failed to find time for looking
at these non-trivial patches, but I hope to review on this week.
> [PATCH] RFC: do not
On Sat, Jun 25, 2011 at 11:34:01AM +0200, Denys Vlasenko wrote:
> Slight optimization and cleanup in trace():
>
> - do not recalculate "cflag ? &ru : NULL" again and again
> - do not clear errno unnecessarily
> - consistently check wait errors as pid < 0, not pid == -1
> - indent ifdefs for better
On Sat, Jun 25, 2011 at 11:34:23AM +0200, Denys Vlasenko wrote:
> This is a big change. I am not entirely sure it is correct,
> so this patch is meant more like a RFC rather than a proposal
> to apply it right away.
I've read your series of patches several times and tested it with several
kernel v
On Sat, Jun 25, 2011 at 11:34:41AM +0200, Denys Vlasenko wrote:
> +#ifdef LINUX
> +/* Temporarily hijack this bit to mark tcb's we already attached */
> +# define TCB_ATTACH_DONE TCB_INSYSCALL
We are not short of unused flags yet to apply such tricks, and your patch
series makes even more room for
On Mon, Aug 15, 2011 at 12:01:56PM +0200, Denys Vlasenko wrote:
> On Tue, 2011-08-02 at 01:45 +0400, Dmitry V. Levin wrote:
> > On Sat, Jun 25, 2011 at 11:34:23AM +0200, Denys Vlasenko wrote:
[...]
> > > I need to look in the past to figure out why we even do it.
> > >
On Wed, Aug 17, 2011 at 03:37:40PM +0200, Denys Vlasenko wrote:
> On Wed, 2011-08-17 at 14:45 +0400, Dmitry V. Levin wrote:
> > On Mon, Aug 15, 2011 at 12:01:56PM +0200, Denys Vlasenko wrote:
> > > On Tue, 2011-08-02 at 01:45 +0400, Dmitry V. Levin wrote:
> > > > On S
On Wed, Aug 17, 2011 at 07:33:57PM +0200, Denys Vlasenko wrote:
[...]
> We might have moderately bad news. I tested current git
> on 2.4.32 kernel (ISO image from
> http://mirrors.kernel.org/openwall/Owl/2.0-release/iso/Owl-2.0-release-i386.iso.gz
> )
>
> and test/childthread.c testcase apparently
On Thu, Aug 18, 2011 at 12:47:38PM +0200, Denys Vlasenko wrote:
> On Thu, 2011-08-18 at 12:23 +0200, Denys Vlasenko wrote:
> > I noticed that tcp->u_args[MAX_ARGS] array is way larger than
> > I'd expect: for all arches except HPPA it has 32 (!) elements.
> >
> > I looked at the code and so far I
On Fri, Aug 19, 2011 at 04:23:51PM +0200, Denys Vlasenko wrote:
> I noticed particularly ugly ifdef forest in sys_mmap64 and decided
> to simplify it (see the commit below).
>
> While looking at simplified version, I noticed that we seem to use
> tcp->u_arg[i] while we have to use u_arg[i].
>
> I
On Fri, Aug 19, 2011 at 05:38:19PM +0200, Denys Vlasenko wrote:
> On Fri, 2011-08-19 at 00:02 +0400, Dmitry V. Levin wrote:
> > On Thu, Aug 18, 2011 at 12:47:38PM +0200, Denys Vlasenko wrote:
[...]
> > > > Alternative solution is to make sys_sigreturn print mask
> > >
On Fri, Aug 19, 2011 at 08:07:38PM +0200, Andreas Schwab wrote:
> Denys Vlasenko writes:
>
> > However, I failed to make test program which invokes mmap64
> > (need to try on x86-64), thus I hesitated to fix the bug.
>
> No linux architecture uses sys_mmap64, since none of them define off_t
> to
On Fri, Aug 19, 2011 at 05:38:19PM +0200, Denys Vlasenko wrote:
> On Fri, 2011-08-19 at 00:02 +0400, Dmitry V. Levin wrote:
[...]
> > > --- strace.5/defs.h 2011-08-18 11:57:30.512416447 +0200
> > > +++ strace.6/defs.h 2011-08-18 11:46:56.349540479 +0200
On Tue, Aug 23, 2011 at 12:34:14PM +0200, Denys Vlasenko wrote:
> Usage -1 as argument count in syscallent tables
> necessitates the check for it, a-la:
>
> if (tcp->scno >= 0 && tcp->scno < nsyscalls &&
> sysent[tcp->scno].nargs != -1)
> tcp->u_nargs = sysent[tcp->scno].n
On Mon, Aug 22, 2011 at 12:24:04PM +0200, Denys Vlasenko wrote:
> On Mon, 2011-08-22 at 12:21 +0200, Denys Vlasenko wrote:
> > 1. Duplicate get_scno into identical get_scno_on_sysenter,
> > get_scno_on_sysexit functions. Call them in syscall enter and syscall
> > exit, correspondingly.
>
> diff -d
On Mon, Aug 22, 2011 at 12:28:59PM +0200, Denys Vlasenko wrote:
> On Mon, 2011-08-22 at 12:21 +0200, Denys Vlasenko wrote:
> > 4. Another speedup: on x86, EAX read on syscall entry is also not
> > necessary if we know that post-execve SIGTRAP is disabled by
> > PTRACE_O_TRACEEXEC ptrace option. Thi
On Mon, Aug 22, 2011 at 12:30:26PM +0200, Denys Vlasenko wrote:
> On Mon, 2011-08-22 at 12:21 +0200, Denys Vlasenko wrote:
> > 5. Move post-execve SIGTRAP from get_scno_on_sysenter (multitude of
> > places on many architectures) to a single location in
> > trace_syscall_entering. This loosens the l
On Wed, Aug 24, 2011 at 11:13:29AM +0200, Denys Vlasenko wrote:
> get_scno_on_sysexit() is a total misnomer, and should be renamed,
> something like get_retval_on_sysexit().
OK, lets name it this way from the beginning, to avoid further confusion.
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On Wed, Aug 24, 2011 at 04:13:48PM +, Denys Vlasenko wrote:
> commit a614692fb082294ae3d3c7f6c1ed26b355d6c4bf
> Author: Denys Vlasenko
> Date: Wed Aug 24 18:07:22 2011 +0200
>
> Reorder functions in syscall.c. No code changes.
>
> Old order (basically "in no particular order"):
On Thu, Aug 25, 2011 at 12:10:06PM +0200, Denys Vlasenko wrote:
> --- strace.5/syscall.c2011-08-25 10:39:36.0 +0200
> +++ strace.6/syscall.c2011-08-25 11:51:32.148543603 +0200
> @@ -716,7 +716,28 @@ struct tcb *tcp_last = NULL;
>
> #ifdef LINUX
> # if defined (I386)
> -s
On Thu, Aug 25, 2011 at 12:10:06PM +0200, Denys Vlasenko wrote:
> While discussing ptrace speedup, in one email Linus said
> that it's stupid that strace doesn't even use already existing
> speedups, such as PTRACE_GETREGS.
Yes, use of PTRACE_GETREGS is a long awaited change.
I expect a significan
On Fri, Aug 26, 2011 at 11:50:15AM +0200, Denys Vlasenko wrote:
> On Thu, 2011-08-25 at 21:10 +0400, Dmitry V. Levin wrote:
> > On Thu, Aug 25, 2011 at 12:10:06PM +0200, Denys Vlasenko wrote:
> > > While discussing ptrace speedup, in one email Linus said
> > > that it&#
On Thu, Aug 25, 2011 at 12:10:06PM +0200, Denys Vlasenko wrote:
> #ifdef LINUX
> # if defined (I386)
> -static long eax;
> +struct i386_user_regs_struct {
> + long ebx;
> + long ecx;
> + long edx;
> + long esi;
> + long edi;
> + long ebp;
> + long eax;
> + long xds
On Fri, Aug 26, 2011 at 07:32:17PM +0200, Denys Vlasenko wrote:
> On Fri, 2011-08-26 at 20:36 +0400, Dmitry V. Levin wrote:
> > On Thu, Aug 25, 2011 at 12:10:06PM +0200, Denys Vlasenko wrote:
> > > #ifdef LINUX
> > > # if defined (I386)
> > > -static long eax;
On Fri, Aug 26, 2011 at 03:56:15PM -0400, Mike Frysinger wrote:
> On Friday, August 26, 2011 13:32:17 Denys Vlasenko wrote:
> > On Fri, 2011-08-26 at 20:36 +0400, Dmitry V. Levin wrote:
> > > On Thu, Aug 25, 2011 at 12:10:06PM +0200, Denys Vlasenko wrote:
>
On Mon, Aug 29, 2011 at 05:48:01PM +0200, Denys Vlasenko wrote:
> On Fri, 2011-08-26 at 20:31 +0200, Denys Vlasenko wrote:
> > > This version which uses asm/ptrace.h and its struct pt_regs.
> > >
> > > Also, I decided to bite the bullet and convert x86-64 too.
> > > Especially that on it we also ge
On Mon, Aug 29, 2011 at 08:43:33PM +1000, Steve Bennett wrote:
> So define something reasonable in this case
>
> Signed-off-by: Steve Bennett
> ---
> pathtrace.c |4
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/pathtrace.c b/pathtrace.c
> index b2efd33..553fef7 1
On Tue, Aug 30, 2011 at 02:55:01PM +1000, Steve Bennett wrote:
[...]
> Including sys/param.h will bring in linux/limits.h and hence PATH_MAX
> on this platform.
Thanks, I've pushed a fix.
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-
On Wed, Aug 24, 2011 at 11:41:10PM +, Denys Vlasenko wrote:
> commit 102ec4935440ff52a7fa3566154a84cc2473f16a
> Author: Denys Vlasenko
> Date: Thu Aug 25 01:27:59 2011 +0200
>
> Optimize tabto()
>
> tabto is used in many lines of strace output.
> On glibc, tprintf("%*s", co
On Wed, Aug 31, 2011 at 02:04:52PM +0200, Denys Vlasenko wrote:
> On Tue, 2011-08-30 at 20:20 +0400, Dmitry V. Levin wrote:
> > On Wed, Aug 24, 2011 at 11:41:10PM +, Denys Vlasenko wrote:
> > > commit 102ec4935440ff52a7fa3566154a84cc2473f16a
> > > Author: Denys Vlas
On Wed, Aug 31, 2011 at 03:19:16PM +0200, Denys Vlasenko wrote:
> On Wed, 2011-08-31 at 16:25 +0400, Dmitry V. Levin wrote:
> > On Wed, Aug 31, 2011 at 02:04:52PM +0200, Denys Vlasenko wrote:
> > > On Tue, 2011-08-30 at 20:20 +0400, Dmitry V. Levin wrote:
[...]
> >
On Wed, Aug 31, 2011 at 03:50:16PM +0200, Denys Vlasenko wrote:
> Speaking of non-linux-2.6 systems.
>
> I am suspicious about non-Linux systems. I'd expect that
> changes to the source are mostly tested on Linux,
> and therefore we should see a fair number of errors
> on non-Linux builds, especia
On Wed, Aug 31, 2011 at 10:11:49AM +, Denys Vlasenko wrote:
> commit 5284557bfad96f12dd5798539008e1644f1dc094
> Author: Denys Vlasenko
> Date: Wed Aug 31 12:07:38 2011 +0200
>
> Optimization: eliminate some usages of strcat()
>
> * defs.h: Declare stpcpy().
> * util.c: Defi
On Wed, Aug 31, 2011 at 10:25:34AM +, Denys Vlasenko wrote:
> commit 8778bffdd25dca050b3aa2a7a7e05bc8a63a6665
> Author: Denys Vlasenko
> Date: Wed Aug 31 12:22:56 2011 +0200
>
> Optimize string_quote() for speed
>
> * util.c (string_quote): Speed up check for terminating NUL.
>
On Wed, Aug 31, 2011 at 10:32:55AM +, Denys Vlasenko wrote:
> commit 2fb4db3e7aa1d6ac6b4b43f47597197492a846dd
> Author: Denys Vlasenko
> Date: Wed Aug 31 12:26:03 2011 +0200
>
> Optimization: eliminate all remaining usages of strcat()
>
> After this change, we don't use strcat(
On Wed, Aug 31, 2011 at 12:01:06PM +, Denys Vlasenko wrote:
> commit 1d46ba57a8ab16b353b531f2bbefe2ad7f354ca9
> Author: Denys Vlasenko
> Date: Wed Aug 31 14:00:02 2011 +0200
>
> Make out-of-memory handling more uniform
>
> This fixes one real bug in dumpstr().
>
> * de
On Wed, Aug 31, 2011 at 02:00:38PM +, Denys Vlasenko wrote:
> commit dfa0acc8c1fc8d287c77f96ace8ac874f09c829a
> Author: Denys Vlasenko
> Date: Wed Aug 31 15:58:06 2011 +0200
>
> Add README-linux-ptrace file
>
> I tried to push this doc to Michael Kerrisk ,
> but got no repl
On Fri, Sep 02, 2011 at 11:33:05AM +1000, Steve Bennett wrote:
> On 01/09/2011, at 3:14 AM, Dmitry V. Levin wrote:
> > On Wed, Aug 31, 2011 at 03:50:16PM +0200, Denys Vlasenko wrote:
> >> Speaking of non-linux-2.6 systems.
> >>
> >> I am suspicious abou
Hi,
On Tue, Sep 06, 2011 at 10:49:23AM +0100, Stringfellow, Justin wrote:
> Hi there.
>
> I'm trying to use strace on rhel to get some info on what a process is
> spending it's time doing. The first problem I'm getting is that strace -c
> alone is just hanging without executing anything. When I
Hi,
On Sun, Oct 09, 2011 at 11:41:43PM +0200, Ralf Friedl wrote:
> I have a patch for linux/mips/syscallent.h, sys_stat64 ist already
> defined and works well.
Thanks. This bug was fixed by commit v4.5.20-58-g4dd5432; the first
released strace version with this fix is 4.6.
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Hi,
On Mon, Oct 10, 2011 at 11:00:49AM +0600, Марк Коренберг wrote:
> -- 1 --
> Please add displaying EPOLLRDHUP to epoll_wait instead of 0x200
>
> current vesion (4.5.20-2ubuntu2)
Why don't they update to 4.6? It was released more than 6 months ago.
> epoll_wait(15, {{
On Mon, Oct 10, 2011 at 11:01:42AM +0600, Марк Коренберг wrote:
> splice(0x4, 0, 0x9, 0, 0x1, 0x3) = 2
> splice(0x7, 0, 0x6, 0, 0x2, 0x3) = 2
>
> Why the "splice" show file descriptors in hex mode, while other
> syscalls display in decimal mode?
When strace has no specialised decoder for a sy
On Wed, Oct 12, 2011 at 10:31:27AM +0600, Марк Коренберг wrote:
> 12 октября 2011 г. 2:23 пользователь Dmitry V. Levin написал:
> > On Mon, Oct 10, 2011 at 11:00:49AM +0600, Марк Коренберг wrote:
> >> -- 1 --
> >> Please add displaying EPOLLRDH
On Wed, Oct 12, 2011 at 10:10:46AM +0600, Марк Коренберг wrote:
> Suppose this scenario:
>
> $ pstree -upal
>
> strace,26778 -ff -o j ./main
> └─main,26779
> ├─main,26780
> ├─main,26781
> ├─main,26782
> │ └─{main},26794
> ├─main,26783
> ├─main,26784
On Thu, Oct 13, 2011 at 10:33:45PM -0400, Mike Frysinger wrote:
> * desc.c (epollflags): Define.
> (sys_epoll_create1): Use epollflags to printflags. Change "O" to "EPOLL".
Applied and pushed, thanks.
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Hi,
On Thu, Nov 24, 2011 at 11:51:19PM +0100, Alexander Kriegisch wrote:
> I would like to user an exception like "-e trace=!ipc", but that option does
> not work. It seems to be a bug, but if it is not, please tell me what I am
> doing wrong. Exceptions for other calls work, but not for ipc - m
arm. What's the strace version
and architecture you are talking about?
> --
> Alexander Kriegisch (kriegaex)
> http://freetz.org
A: Because it messes up the order in which people normally read text.
Q: Why top-posting is considered the most annoying thing in messages?
> Dmitry V. Le
On Fri, Nov 25, 2011 at 05:49:01PM +0100, Alexander Kriegisch wrote:
[...]
> > You can use
> > strace -e trace='!ipc'
> > to hide all IPC related syscalls (shm*, sem* and msg*).
>
> Thank you very much, but have you read my original question? I want to
> specifically hide calls like these:
>
> >
On Sat, Nov 26, 2011 at 01:51:28PM +0100, Alexander Kriegisch wrote:
> On Fri, Nov 25, 2011 at 10:56:51PM +0400, Dmitry V. Levin wrote:
[...]
> > There is something wrong with strace on your platform, otherwise you
> > would never see this ipc() syscall. I'm not an expert wit
On Wed, Nov 30, 2011 at 01:16:29PM +0100, Heiko Carstens wrote:
> The s390 kernel sys_ipc system call only takes five arguments instead of
> six arguments which the common code sys_ipc implementation takes.
> One of the arguments of the sys_semtimedop subcall is therefore passed in
> a different re
On Wed, Nov 30, 2011 at 02:49:17PM -0800, Rick Jones wrote:
>
> Teach strace about the TCP_CONGESTION and TCP_MD5SIG options.
Thanks, I added more TCP_* constants from linux/tcp.h, someday
netinet/tcp.h will hopefully catch up.
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On Sun, Nov 20, 2011 at 07:18:51PM +0100, Lubomir Rintel wrote:
> * net.c: Dump details for AF_BLUETOOTH sockets
Thanks.
> Signed-off-by: Lubomir Rintel
> ---
> configure.ac |1 +
> net.c| 79
> +++---
> 2 files changed, 76 inse
On Sat, Dec 10, 2011 at 03:54:00PM -0500, Mike Frysinger wrote:
> Current build fails due to missing stdbool.h include:
I surely see no build failures on my side, but it depends on system
headers.
> strace.c:102:1: error: unknown type name 'bool'
> strace.c: In function 'die_out_of_memory':
> str
On Sat, Dec 10, 2011 at 03:54:00PM -0500, Mike Frysinger wrote:
> Current build fails due to missing stdbool.h include:
> strace.c:102:1: error: unknown type name 'bool'
> strace.c: In function 'die_out_of_memory':
> strace.c:269:2: error: unknown type name 'bool'
>
> Signed-off-by: Mike Frysinger
Hi,
On Fri, Apr 29, 2011 at 12:13:14AM -0400, Michael A Fetterman wrote:
> strace on x86_64 sometimes gets confused by interrupted system calls.
> This happens routinely when tracing a large tree of processes.
>
> You get things like this:
>
> 1405 vfork(
>
> 1405 <... vfork resumed> )
Hi,
On Thu, Nov 17, 2011 at 10:25:26AM +0100, Łukasz Michalik wrote:
> Hello,
>
> I'm currently debugging an issue in sydbox wrt recent linux kernels.
> I initially thought strace wasn't affected by it, but then debian bug
> #622863 [1] made me investigate further, althought it's impossible to
>
Hi,
On Mon, Jan 09, 2012 at 01:49:10PM +0100, Denys Vlasenko wrote:
> sys_sigreturn() performs ugly manipulations in order to show
> the signal mask which is restored by this syscall: on syscall entry,
> fetches it from the stack, saves it in tcp->u_arg[]
> (where it used to overflow this array -
Hi,
On Sun, Jan 15, 2012 at 03:12:50AM +0300, Alexander Kolesen wrote:
> Hello.
>
> I've tried to build strace-4.6 with clang-3.0 and got the following
> error:
>
> /usr/bin/clang -DHAVE_CONFIG_H -I. -I./linux/x86_64 -I./linux -I./linux
> -Wall -Wwrite-strings -O2 -pipe -MT strace.o -MD -MP
/* See below for TCB_ values */
I actually missed this obvious mistake during the first review.
I'm about to push the following fix:
From 024cad9a25bd11abc05525ab58b33cb570e29464 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin"
Date: Tue, 17 Jan 2012 18:37:13 +
Subject: [
On Tue, Jan 17, 2012 at 08:01:00PM +0100, Denys Vlasenko wrote:
> On 01/17/2012 07:53 PM, Dmitry V. Levin wrote:
[...]
> >[X86_64] (x86_64_regs): Remove.
> >* syscall.c [X86_64] (x86_64_regs): Make static.
>
> I think we will eventually need register structs to be access
On Tue, Jan 17, 2012 at 08:59:46PM +0100, Denys Vlasenko wrote:
> On 01/17/2012 08:43 PM, Dmitry V. Levin wrote:
> > On Tue, Jan 17, 2012 at 08:01:00PM +0100, Denys Vlasenko wrote:
> >> On 01/17/2012 07:53 PM, Dmitry V. Levin wrote:
> > [...]
> >>> [X86_64] (x86
On Wed, Jan 18, 2012 at 11:09:58AM +0100, Denys Vlasenko wrote:
> On 01/17/2012 10:46 PM, Dmitry V. Levin wrote:
> > On Tue, Jan 17, 2012 at 08:59:46PM +0100, Denys Vlasenko wrote:
> >> On 01/17/2012 08:43 PM, Dmitry V. Levin wrote:
> >>> On Tue, Jan 17, 2012 at 08
On Wed, Jan 18, 2012 at 03:56:38PM +0100, Denys Vlasenko wrote:
[...]
> So, why we even have TCB_SIGTRAPPED? No one knows. It predates
> version control: this code was present in the initial commit,
> in 1999.
>
> Moreover, TCB_SIGTRAPPED is not used in sys_rt_sigaction,
> only in obsolete sys_sig
On Tue, Jan 17, 2012 at 11:56:53PM +0100, Andreas Schwab wrote:
> * file.c (printstatfs64): Print f_flags if available.
> ---
> file.c |3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/file.c b/file.c
> index 4e62c2c..473e6fd 100644
> --- a/file.c
> +++ b/file.c
> @@
On Tue, Jan 17, 2012 at 11:58:02PM +0100, Andreas Schwab wrote:
> * file.c (struct compat_statfs64, printcompat_statfs64): Define.
> (sys_statfs64, sys_fstatfs64): Use it.
Looks OK for me.
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Hi,
On Sun, Jan 22, 2012 at 07:44:17PM +0100, Lluís Batlle i Rossell wrote:
> Hello,
>
> strace 4.5.20 works perfectly on mips64 n32, but 4.6 shows wrong syscalls all
> around.
>
> You'll see an example at the end of this letter.
>
> There is also a build warning, as defs.h does not contain any
On Tue, Jan 24, 2012 at 10:10:05AM +0100, Denys Vlasenko wrote:
> The commit was:
>
> "strace.c (verror_msg): Rewrite without use of heap memory allocation"
>
> it replaced "malloc + one fprintf + free" with "three fprintf's".
>
> I guess it's my fault that I did not add a comment which explains
On Tue, Jan 24, 2012 at 11:42:49AM +0100, Denys Vlasenko wrote:
> On 01/24/2012 11:24 AM, Dmitry V. Levin wrote:
> >On Tue, Jan 24, 2012 at 10:10:05AM +0100, Denys Vlasenko wrote:
> >> msg = NULL;
> >> vasprintf(&msg, fmt, p);
> >> if
On Fri, Jan 27, 2012 at 04:27:32PM +, Denys Vlasenko wrote:
[...]
> commit 3449ae83c26d159dddc8573dc22b867feb0f49c6
> Author: Denys Vlasenko
> Date: Fri Jan 27 17:24:26 2012 +0100
>
> Fix readlink result display - was printing bogus "..." semi-randomly
>
> * file.c (decode_read
On Sun, Jan 29, 2012 at 09:26:26PM +0100, Denys Vlasenko wrote:
> On 01/28/2012 01:38 AM, Dmitry V. Levin wrote:
> > On Fri, Jan 27, 2012 at 04:27:32PM +, Denys Vlasenko wrote:
> > [...]
> >> commit 3449ae83c26d159dddc8573dc22b867feb0f49c6
> >> Author: Denys Vl
Hi,
On Fri, Feb 03, 2012 at 10:07:42AM -0800, H.J. Lu wrote:
> Hi,
>
> This patch prints NULL for zero address in sys_mmap64 so that
> it is consistent with sys_mmap.
Applied, thanks.
--
ldv
pgpNxBBRMEbpm.pgp
Description: PGP signature
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Hi,
On Fri, Feb 03, 2012 at 10:10:30AM -0800, H.J. Lu wrote:
> Hi,
>
> When HAVE_LONG_LONG_OFF_T is defined, those old stat functions aren't used
> and strace won't link since they use realprintstat which isn't defined
> when HAVE_LONG_LONG_OFF_T is defined.
Thanks, applied.
--
ldv
pgpEGagM
Hi,
On Fri, Feb 03, 2012 at 10:12:10AM -0800, H.J. Lu wrote:
> Hi,
>
> When HAVE_LONG_LONG_OFF_T is defined, we need to use %llu to print
> offset.
Applied, thanks.
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pgpSzfVkGfJIx.pgp
Description: PGP signature
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Hi,
On Fri, Feb 03, 2012 at 10:16:03AM -0800, H.J. Lu wrote:
> Hi,
>
> This patch casts a value to long for %l in printf to avoid compiler
> warning on systems where it may be long long.
Thanks, applied.
--
ldv
pgpuFDpJfFRoI.pgp
Description: PGP signature
--
Hi,
On Fri, Feb 03, 2012 at 10:17:01AM -0800, H.J. Lu wrote:
> Hi,
>
> This patch defines RLIM64_INFINITY only if it isn't defined.
Applied, thanks.
--
ldv
pgp6qrvWzpARd.pgp
Description: PGP signature
--
Try before
Hi,
On Fri, Feb 03, 2012 at 10:14:07AM -0800, H.J. Lu wrote:
> Hi,
>
> When HAVE_LONG_LONG_OFF_T is defined, sys_pread64 and sys_pwrite64 won't
> be defined. We shouldn't reference them.
Thanks. These sys_pread64/sys_pwrite64 are even less needed than on
!HAVE_LONG_LONG_OFF_T, so I applied ano
Hi,
On Fri, Feb 03, 2012 at 10:19:55AM -0800, H.J. Lu wrote:
> Hi,
>
> This patch avoids segfault when there are holes in system call table.
> It can happen with syscall (number, ...) and number is in those holes.
We don't have sysent tables with holes yet, do we?
Another question is, assuming
On Mon, Feb 06, 2012 at 07:43:58AM -0800, H.J. Lu wrote:
> On Mon, Feb 6, 2012 at 7:24 AM, Dmitry V. Levin wrote:
> > On Fri, Feb 03, 2012 at 10:19:55AM -0800, H.J. Lu wrote:
> >>
> >> This patch avoids segfault when there are holes in system call table.
> >>
Hi,
On Tue, Feb 07, 2012 at 12:23:24PM +0100, Denys Vlasenko wrote:
> Hi Dmitry.
>
> I noticed that this structure member is used only if
> we have more than one personality.
This native_scno thing is not so much used in the code than before.
For example, there are 21 initialized native_scno ent
Hi,
On Tue, Feb 07, 2012 at 02:06:24PM +0100, Denys Vlasenko wrote:
> Hi Dmitry,
>
> Non-linux code (FreeBSD/SunOS/SVR4) appears to be dead.
>
> I looked through changelog and all changes to this code
> since at least 2005 only keep it in line with evolution
> of Linux code (such as changing the
On Tue, Feb 07, 2012 at 03:33:44PM +, Grant Edwards wrote:
> Are there any plans to release a new version any time soon?
Unless we want to enable PTRACE_SEIZE support by default (which is a nice
feature, but in that case we would have to wait for a stable kernel API,
so I'm not sure about it),
On Thu, Feb 09, 2012 at 11:01:29AM -0500, Mike Frysinger wrote:
> On Thursday 09 February 2012 08:47:51 shubham wrote:
> > This is my first post and I am new to strace also. I liked the facilities
> > this command provides and I want to learn the logics behind the development
> > of this command.
>
On Tue, Feb 07, 2012 at 06:18:22PM +, Grant Edwards wrote:
> On 2012-02-07, Dmitry V. Levin wrote:
> > On Tue, Feb 07, 2012 at 03:33:44PM +, Grant Edwards wrote:
> >
> >> Are there any plans to release a new version any time soon?
> >
> > Unless we wa
On Tue, Feb 14, 2012 at 02:59:58PM +0100, Denys Vlasenko wrote:
> On 02/14/2012 05:56 AM, Mike Frysinger wrote:
> > glibc-2.15 provides process_vm_readv, so trying to provide this ourselves
> > with that version fails:
> > util.c:797:16: error: static declaration of 'process_vm_readv'
> >
On Thu, Feb 16, 2012 at 01:28:01PM -0500, Mike Frysinger wrote:
> On Thursday 16 February 2012 11:55:06 Dmitry V. Levin wrote:
> > A ChangeLog-style entry is missing in the commit message,
> > but the commit is already pushed...
>
> blah, sorry. i started to look at `gi
On Tue, Feb 07, 2012 at 02:14:11PM +0100, Denys Vlasenko wrote:
> On 02/07/2012 01:17 PM, Dmitry V. Levin wrote:
> >> I noticed that this structure member is used only if
> >> we have more than one personality.
> >
> > This native_scno thing is not so much used
On Wed, Jan 09, 2008 at 12:12:20AM +0200, Petri Latvala wrote:
> Package: strace
> Version: 4.5.14-2
> Severity: normal
This comes from quite an old Debian bug report
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=459820
which seems to be actual.
> -- BEGIN TESTCASE PROGRAM --
>
> #include
>
On Tue, Feb 07, 2012 at 04:18:32PM +0100, Denys Vlasenko wrote:
> On 02/07/2012 04:05 PM, Dmitry V. Levin wrote:
> >> What do you think about removing all non-Linux code after the next release?
> >
> > I'm inclined to think it would be better to remove that dead co
On Wed, Feb 22, 2012 at 05:40:46AM +0400, Dmitry V. Levin wrote:
> So, since there were no objections, let's go ahead and kick the dead code out.
Here it is, tested on x86 and x86-64, please have a look (6 top commits):
http://strace.git.sourceforge.net/git/gitweb.cgi?p=strace/strace;a=sh
On Sat, Feb 25, 2012 at 03:49:03PM +0100, Denys Vlasenko wrote:
> On 02/25/2012 02:51 PM, Denys Vlasenko wrote:
> > On 02/25/2012 01:41 AM, Dmitry V. Levin wrote:
> >> On Wed, Feb 22, 2012 at 05:40:46AM +0400, Dmitry V. Levin wrote:
> >>> So, since there were no objec
On Thu, Mar 08, 2012 at 12:32:12PM +0100, Denys Vlasenko wrote:
> On 03/07/2012 08:59 PM, George Spelvin wrote:
> > With multi-process and multi-threaded programs becoming more common,
> > there are a couple of things I wish strace gave me:
> >
> > 1) Some way to supply a *list* of pids to be trace
On Thu, Feb 09, 2012 at 07:38:27PM +0100, Denys Vlasenko wrote:
> On 02/09/2012 05:29 PM, Dmitry V. Levin wrote:
[...]
> > The current release was made in March of 2011, we have 228 commits on top
> > of 4.6 so far, including some important internal and user-visible changes,
>
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