Hi Linus, On Thu, Jan 26, 2012 at 4:47 AM, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: >> Please look at strace source, get_scno() function, where >> it reads syscall no and parameters. Let's see.... >> - POWERPC: has 32-bit and 64-bit mode >> - X86_64: has 32-bit and 64-bit mode >> - IA64: has i386-compat mode >> - ARM: has more than one ABI >> - SPARC: has 32-bit and 64-bit mode >> >> Do you want to re-invent a different arch-specific way to report >> syscall type for each of these arches? > > I think an arch-specific one is better than trying to make some > generic one that is messy. > > As you say, many architectures have multiple system call ABIs. > > But they tend to be very *different* issues. They can be about > multiple ABI's, as you mention, and even when they *look* similar > (32-bit vs 64-bit ABI's) they are actually totally different issues. > [skip] I don't have a particular attachment to my solution, and I think we already talk about this problem for far too long. Looks like nobody is _strongly_ opposed to your patch which uses a few bits in eflags to report bitness of the x86 syscall. Lets just do that already. If you commit it to kernel git, I will immediately change strace accordingly. -- vda -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
