| OSDev.org https://forum.osdev.org/ |
|
| Building GCC for a.out executables https://forum.osdev.org/viewtopic.php?f=1&t=56080 |
Page 1 of 1 |
| Author: | spotracite [ Wed Jan 05, 2022 10:18 pm ] |
| Post subject: | Building GCC for a.out executables |
Before I say anything, I'd like to say that I know exactly why I shouldn't build an operating system around a.out executables, but ELF doesn't fit with my needs so I'm avoiding it. I'm going to be ignoring anyone who says "Why don't you just use X format instead?" because that doesn't answer my question. Also, I'll just say it here: I haven't tried all the options I could. I know. I have an extremely old and slow computer and it takes me forever to compile anything, so I'd rather try to find the solution BEFORE trial and error. Currently, I'm trying to build a GCC Cross-Compiler. I've done this before with other toolchains so I'm fairly confident the problem isn't in my host compiler. I'm trying to compile it all with my target as i386-aout, which it automatically turns into i386-pc-aout. It gets through binutils fine up to ld, at which point it fails, informing me that: Code: *** ld does not support target i386-pc-aout *** see ld/configure.tgt for supported targets Well, I checked configure.tgt and found the only reference to i386 and aout is here: Code: i[3-7]86-*-msdos*) targ_emul=i386msdos targ_extra_emuls=i386aout targ_extra_ofiles= ;; Which (I think, from my guessing how tgt works) indicates that I should be using i386-msdos-aout instead of i386-pc-aout. I'm at a point here where I could figure out more on my own but I'm having a hard time finding documentation on GCC for aout so I figured I'd just ask to see if anyone else can help me. Should I use i386-msdos-aout instead, or would that give me some other trouble? |
|
| Author: | klange [ Wed Jan 05, 2022 10:37 pm ] |
| Post subject: | Re: Building GCC for a.out executables |
Binutils'/BFD's support for a.out [for x86] was always spotty and existed only for supporting legacy targets as everything switched to ELF or was already using something else more powerful (eg. PE) twenty years ago. It has been fully deprecated now and you will need to dig through ancient archives to find compatible versions of all the tools and dependent libraries if you want to build a toolchain supporting it. You might have better luck building an ELF toolchain and then converting your outputs, rather than trying to natively build an a.out toolchain. |
|
| Author: | Octocontrabass [ Thu Jan 06, 2022 10:52 am ] |
| Post subject: | Re: Building GCC for a.out executables |
spotracite wrote: ELF doesn't fit with my needs Out of curiosity, what makes ELF not work for you? |
|
| Page 1 of 1 | All times are UTC - 6 hours |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|