On Tue, 22 Apr 2008 12:06:57 +0200, David Woodhouse wrote: > On Mon, 2008-04-21 at 14:47 +0100, Paul F. Johnson wrote: > > Hi, > > > > I'm trying to rebuild mono-debugger but it's failing due > > to /usr/include/asm/user.h being missing. I have both the kernel-headers > > and glibc-devel packages installed (looking around, it appears the file > > belongs in one of these two packages), but nothing. > > > > Any ideas where it lives now? > > It doesn't: > http://git.kernel.org/?p=linux/kernel/git/dwmw2/kernel-headers.git;a=commitdiff;h=a9128be8657fa436a2e4379b63853964bb56daf3 > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=c1445db9f72db0537c43a2eab6e1b0f6741162f5 > > What do you need it for? Are you trying to interpret A.OUT core dumps? > > Having said that, I'm not sure we _should_ have removed it from the > upstream kernel. Although Fedora no longer builds a.out support, > upstream still supports a.out -- and so should probably continue to > provide <asm/user.h> -- doesn't this define the Linux-specific header on > our a.out core dumps? > > Jan, how does gdb cope with a.out core dumps? (or doesn't it?) It handles it transparently through libbfd although sure I did not try it recently. I still do not understand how is a.out related to <asm/user.h>, `struct user' was from its offset 0, wasn't it? <sys/user.h> contains the same info as <asm/user.h> before - the registers layout presented by kernel to the userland. You need to rename some segment registers `cs'->`xcs' and some underscore differenteces are there. It is used for ptrace(2) and the core dumps. ELF cores contain note NT_PRSTATUS (show by eu-readelf -n COREFILE) where `struct elf_prstatus.pr_reg' contains `struct user_regs_struct' defined in that <sys/user.h> (<asm/user.h). Regards, Jan -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
