Re: help compilation qemu
Am 24.05.2020 um 17:30 schrieb Juan carlos Rebate via Cygwin: [Can you _please_ cut down on the TOFU? Thanks ] Hi Caba, I know qemu-system-i386 because the official binary is that \ size.As for the command used I use this:x86_64-w64-mingw32- this way it ^^ Those two marked details form a mismatch. If it's the i386 version you're trying to build, then the tool chain (equivalent to the --target argument in configure) is i686-w64-mingw32. compiles perfectly except for the file sizes, if I add the option - s Add it where? -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Dear Juan Carlos: I think by "command" we mean the full command line, plus information about the version of the compiler, etc. Regards - Eliot Moss -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Hi Caba, I know qemu-system-i386 because the official binary is that size.As for the command used I use this:x86_64-w64-mingw32- this way it compiles perfectly except for the file sizes, if I add the option - s the error Bash option -s unknown, I use 64-bit El dom., 24 may. 2020 11:32, Csaba Ráduly via Cygwin escribió: > > Hi Juan Carlos, > > On 24/05/2020 02:08, Juan carlos Rebate via Cygwin wrote: > ... > > > 1 the compiler is extremely slow, gcc on Linux is about 10 times > > faster, How could I speed up the compilation process?. > > Unfortunately, Cygwin's emulation of fork() is slow compared to the native > Linux > implementation (I've seen 1000x difference once, in a test launching the > same > program repeatedly). There's not much you can do about it, except getting > faster > hardware. A C++ build involves lots and lots of programs being forked. > > > 2 the executables produced are too fat, for example qemu-system-i386 is > 65 > > MB, but it should be 10.5 MB, if I use the -s option in configure returns > > an unknown error message, how could I fix it? Thank you > > Why do you think qemu-system-i386 "should be 10.5 MB" ? > Are you using 32-bit or 64-bit Cygwin? 64-bit executables are usually > bigger > than their 32-bit counterparts (although rarely six times as big). > > You really need to give us more information if you hope to get help, like > the > actual commands you used and the exact error message. > > Without those, we can only guess, and my crystal ball is not very reliable. > > If you want to strip the resulting executables, you could try setting the > LDFLAGS environment variable to '-s' before running configure > > Csaba > -- > You can get very substantial performance improvements > by not doing the right thing. - Scott Meyers, An Effective C++11/14 Sampler > So if you're looking for a completely portable, 100% standards-conformat > way > to get the wrong information: this is what you want. - Scott Meyers > (C++TDaWYK) > -- > Problem reports: https://cygwin.com/problems.html > FAQ: https://cygwin.com/faq/ > Documentation:https://cygwin.com/docs.html > Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Hi Juan Carlos, On 24/05/2020 02:08, Juan carlos Rebate via Cygwin wrote: ... 1 the compiler is extremely slow, gcc on Linux is about 10 times faster, How could I speed up the compilation process?. Unfortunately, Cygwin's emulation of fork() is slow compared to the native Linux implementation (I've seen 1000x difference once, in a test launching the same program repeatedly). There's not much you can do about it, except getting faster hardware. A C++ build involves lots and lots of programs being forked. 2 the executables produced are too fat, for example qemu-system-i386 is 65 MB, but it should be 10.5 MB, if I use the -s option in configure returns an unknown error message, how could I fix it? Thank you Why do you think qemu-system-i386 "should be 10.5 MB" ? Are you using 32-bit or 64-bit Cygwin? 64-bit executables are usually bigger than their 32-bit counterparts (although rarely six times as big). You really need to give us more information if you hope to get help, like the actual commands you used and the exact error message. Without those, we can only guess, and my crystal ball is not very reliable. If you want to strip the resulting executables, you could try setting the LDFLAGS environment variable to '-s' before running configure Csaba -- You can get very substantial performance improvements by not doing the right thing. - Scott Meyers, An Effective C++11/14 Sampler So if you're looking for a completely portable, 100% standards-conformat way to get the wrong information: this is what you want. - Scott Meyers (C++TDaWYK) -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
help compilation qemu
Good morning, in a previous post I was debating with some nice users (for technical reasons I can't retrieve that thread)The point is that although the qemu wiki says it can't compile with cygwin for 64-bit it actually can, and for technical reasons I haven't been able to communicate it before,The case is that making a couple of adjustments when looking for all the mingw packages if they can be found, but there is a problem,Well, really two problems.1 the compiler is extremely slow, gcc on Linux is about 10 times faster, How could I speed up the compilation process?. 2 the executables produced are too fat, for example qemu-system-i386 is 65 MB, but it should be 10.5 MB, if I use the -s option in configure returns an unknown error message, how could I fix it? Thank you -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Hi, On Sun, May 3, 2020 at 4:54 PM Eliot Moss wrote: > On 5/3/2020 8:52 AM, Maarten Hoes via Cygwin wrote: > > Hrm. > > > > That's odd. I just installed MSYS2 and followed the instructions provided > > in the QEMU wiki for MSYS2, and all preparatory steps of running > > msys2/pacman/git/configure (only excluding the actual 'make' for > > compilation) work as expected. There must be a difference between our > > setups/steps/configurations if that doesn't work for you. > > I can imagine issues with both MSYS and Cygwin installed, if the order > of things on paths is not right, e.g., getting the Cygwin version of > something when trying to run MSYS, or vice versa. > > Maybe try to make sure, when building qemu under MSYS, that no Cygwin > things are in your path? > > Best wishes -- Eliot > Good point. I tried to verify that, so I did [1a] On a cygwin prompt echo $PATH | grep -i msys [1b] On a msys prompt echo $PATH | grep -i cyg And got no conflicting results. (msys is not in the cygwin path, and cygwin is not in the msys path). [2] 'mount' only showed cygdrive on a cygwin prompt, and only msys on a msys prompt [3] Looked for a 'msys' string in a random binary in the path: [3a] On a msys prompt: strings `which ls.exe` | grep -i msys gave me msys hits. [3b] on a cygwin prompt: strings `which ls.exe` | grep -i msys gave me no hits. So it at least appears to me that the environments are not conflicting for me personally. Of course, that could very well be the case for the error results of the original poster. PS: if anyone knows of better tests/checks to see if the environments are intermingled in some way, I'd love to hear it. - Maarten -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
On 5/3/2020 8:52 AM, Maarten Hoes via Cygwin wrote: Hrm. That's odd. I just installed MSYS2 and followed the instructions provided in the QEMU wiki for MSYS2, and all preparatory steps of running msys2/pacman/git/configure (only excluding the actual 'make' for compilation) work as expected. There must be a difference between our setups/steps/configurations if that doesn't work for you. I can imagine issues with both MSYS and Cygwin installed, if the order of things on paths is not right, e.g., getting the Cygwin version of something when trying to run MSYS, or vice versa. Maybe try to make sure, when building qemu under MSYS, that no Cygwin things are in your path? Best wishes -- Eliot -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Hrm. That's odd. I just installed MSYS2 and followed the instructions provided in the QEMU wiki for MSYS2, and all preparatory steps of running msys2/pacman/git/configure (only excluding the actual 'make' for compilation) work as expected. There must be a difference between our setups/steps/configurations if that doesn't work for you. - Maarten On Sat, May 2, 2020 at 10:44 PM Juan carlos Rebate via Cygwin < cygwin@cygwin.com> wrote: > I can't use msys2 because when I use the Syu command it is not able to > resolve the download url,The only missing component is > mingw64-686-pkconfig, all other components if they are in cygwin > > El sáb., 2 may. 2020 22:24, Maarten Hoes > escribió: > > > Hi, > > > > I have no personal experience with this, but when I take a look at the > > QEMU wiki, it seems that : > > > > > > [1] > > Builds with cygwin are not really supported. > > https://wiki.qemu.org/Hosts/W32#Native_builds_with_Cygwin > > > > > > [2] > > A supported way of building QEMU on Windows is with MSYS2 > > https://wiki.qemu.org/Hosts/W32#Native_builds_with_MSYS2 > > > > > > Hope this helps. > > > > > > - Maarten > > > > > > On Sat, May 2, 2020 at 9:31 PM Juan carlos Rebate via Cygwin < > > cygwin@cygwin.com> wrote: > > > >> Hello, it is the first time that I write here, sorry for the possible > >> malfunctions of the mailing list.I am interested in compiling qemu with > >> cygwin and the documentation is scarce, it only indicates that the > >> environment is complete but it does not indicate all the necessary > >> components,The components that they mention are not available in cygwin, > >> for example Mingw64-686-pkconfig is not included in the repositories, > >> could > >> someone give me a complete manual? Thank you very much in advance > >> -- > >> Problem reports: https://cygwin.com/problems.html > >> FAQ: https://cygwin.com/faq/ > >> Documentation:https://cygwin.com/docs.html > >> Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > >> > > > -- > Problem reports: https://cygwin.com/problems.html > FAQ: https://cygwin.com/faq/ > Documentation:https://cygwin.com/docs.html > Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Yes, pkconfig is among the requirements although today in 2020 that package is not in cygwin, due to the scarce documentation in this regard, I will try to see if a cross-compilation is feasible. El sáb., 2 may. 2020 23:47, Vanda Vodkamilkevich < vanda.vodkamilkev...@gmail.com> escribió: > Le sam. 2 mai 2020 à 22:46, Juan carlos Rebate via Cygwin < > cygwin@cygwin.com> a écrit : > >> I can't use msys2 because when I use the Syu command it is not able to >> resolve the download url,The only missing component is >> mingw64-686-pkconfig, all other components if they are in cygwin >> >> El sáb., 2 may. 2020 22:24, Maarten Hoes >> escribió: >> >> > Hi, >> > >> > I have no personal experience with this, but when I take a look at the >> > QEMU wiki, it seems that : >> > >> > >> > [1] >> > Builds with cygwin are not really supported. >> > https://wiki.qemu.org/Hosts/W32#Native_builds_with_Cygwin >> > >> > >> > [2] >> > A supported way of building QEMU on Windows is with MSYS2 >> > https://wiki.qemu.org/Hosts/W32#Native_builds_with_MSYS2 >> > >> > >> > Hope this helps. >> > >> > >> > - Maarten >> > >> > >> > On Sat, May 2, 2020 at 9:31 PM Juan carlos Rebate via Cygwin < >> > cygwin@cygwin.com> wrote: >> > >> >> Hello, it is the first time that I write here, sorry for the possible >> >> malfunctions of the mailing list.I am interested in compiling qemu with >> >> cygwin and the documentation is scarce, it only indicates that the >> >> environment is complete but it does not indicate all the necessary >> >> components,The components that they mention are not available in >> cygwin, >> >> for example Mingw64-686-pkconfig is not included in the repositories, >> >> could >> >> someone give me a complete manual? Thank you very much in advance >> >> -- >> >> Problem reports: https://cygwin.com/problems.html >> >> FAQ: https://cygwin.com/faq/ >> >> Documentation:https://cygwin.com/docs.html >> >> Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple >> >> >> > >> -- >> Problem reports: https://cygwin.com/problems.html >> FAQ: https://cygwin.com/faq/ >> Documentation:https://cygwin.com/docs.html >> Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > > > Hi, > > In the past I succeeded in compiling Qemu with cygwin. Last update of the > page http://lassauge.free.fr/qemu/) for this is a bit old (2016! ) but I > could dig in my backup flash drive to find the real last time if needed... > > In the list of dependencies there was in fact Mingw64-686-pkconfig (which > should indicate that the package was existing at time). > > Sadly the PC containing the development environment I used for Qemu is at > my work place and not available actually (up to May 11th) due to the > lockdown :( > > Eric. > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
I can't use msys2 because when I use the Syu command it is not able to resolve the download url,The only missing component is mingw64-686-pkconfig, all other components if they are in cygwin El sáb., 2 may. 2020 22:24, Maarten Hoes escribió: > Hi, > > I have no personal experience with this, but when I take a look at the > QEMU wiki, it seems that : > > > [1] > Builds with cygwin are not really supported. > https://wiki.qemu.org/Hosts/W32#Native_builds_with_Cygwin > > > [2] > A supported way of building QEMU on Windows is with MSYS2 > https://wiki.qemu.org/Hosts/W32#Native_builds_with_MSYS2 > > > Hope this helps. > > > - Maarten > > > On Sat, May 2, 2020 at 9:31 PM Juan carlos Rebate via Cygwin < > cygwin@cygwin.com> wrote: > >> Hello, it is the first time that I write here, sorry for the possible >> malfunctions of the mailing list.I am interested in compiling qemu with >> cygwin and the documentation is scarce, it only indicates that the >> environment is complete but it does not indicate all the necessary >> components,The components that they mention are not available in cygwin, >> for example Mingw64-686-pkconfig is not included in the repositories, >> could >> someone give me a complete manual? Thank you very much in advance >> -- >> Problem reports: https://cygwin.com/problems.html >> FAQ: https://cygwin.com/faq/ >> Documentation:https://cygwin.com/docs.html >> Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple >> > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
Hi, I have no personal experience with this, but when I take a look at the QEMU wiki, it seems that : [1] Builds with cygwin are not really supported. https://wiki.qemu.org/Hosts/W32#Native_builds_with_Cygwin [2] A supported way of building QEMU on Windows is with MSYS2 https://wiki.qemu.org/Hosts/W32#Native_builds_with_MSYS2 Hope this helps. - Maarten On Sat, May 2, 2020 at 9:31 PM Juan carlos Rebate via Cygwin < cygwin@cygwin.com> wrote: > Hello, it is the first time that I write here, sorry for the possible > malfunctions of the mailing list.I am interested in compiling qemu with > cygwin and the documentation is scarce, it only indicates that the > environment is complete but it does not indicate all the necessary > components,The components that they mention are not available in cygwin, > for example Mingw64-686-pkconfig is not included in the repositories, could > someone give me a complete manual? Thank you very much in advance > -- > Problem reports: https://cygwin.com/problems.html > FAQ: https://cygwin.com/faq/ > Documentation:https://cygwin.com/docs.html > Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
I'm already aware of the availability of binaries for windows, but I want to compile it myself, I ask because qemu documentation is sparse. El sáb., 2 may. 2020 21:39, john doe escribió: > On 5/2/2020 9:28 PM, Juan carlos Rebate via Cygwin wrote: > > Hello, it is the first time that I write here, sorry for the possible > > malfunctions of the mailing list.I am interested in compiling qemu with > > cygwin and the documentation is scarce, it only indicates that the > > environment is complete but it does not indicate all the necessary > > components,The components that they mention are not available in cygwin, > > for example Mingw64-686-pkconfig is not included in the repositories, > could > > someone give me a complete manual? Thank you very much in advance > > -- > > FYI, qemu for Windows is available. > > -- > John Doe > -- > Problem reports: https://cygwin.com/problems.html > FAQ: https://cygwin.com/faq/ > Documentation:https://cygwin.com/docs.html > Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: help compilation qemu
On 5/2/2020 9:28 PM, Juan carlos Rebate via Cygwin wrote: > Hello, it is the first time that I write here, sorry for the possible > malfunctions of the mailing list.I am interested in compiling qemu with > cygwin and the documentation is scarce, it only indicates that the > environment is complete but it does not indicate all the necessary > components,The components that they mention are not available in cygwin, > for example Mingw64-686-pkconfig is not included in the repositories, could > someone give me a complete manual? Thank you very much in advance > -- FYI, qemu for Windows is available. -- John Doe -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
help compilation qemu
Hello, it is the first time that I write here, sorry for the possible malfunctions of the mailing list.I am interested in compiling qemu with cygwin and the documentation is scarce, it only indicates that the environment is complete but it does not indicate all the necessary components,The components that they mention are not available in cygwin, for example Mingw64-686-pkconfig is not included in the repositories, could someone give me a complete manual? Thank you very much in advance -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
