18 Nov, 2011
2 commits
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Generate system call tables and unistd_*.h automatically from the
tables in arch/x86/syscalls. All other information, like NR_syscalls,
is auto-generated, some of which is in asm-offsets_*.c.This allows us to keep all the system call information in one place,
and allows for kernel space and user space to see different
information; this is currently used for the ia32 system call numbers
when building the 64-bit kernel, but will be used by the x32 ABI in
the near future.This also removes some gratuitious differences between i386, x86-64
and ia32; in particular, now all system call tables are generated with
the same mechanism.Cc: H. J. Lu
Cc: Sam Ravnborg
Cc: Michal Marek
Signed-off-by: H. Peter Anvin -
Move compat_ni_syscall out of ia32entry.S and into its own .c file.
Although this is a trivial function, it is not performance-critical,
and this will simplify further cleanups.Signed-off-by: H. Peter Anvin
30 Jan, 2008
7 commits
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This switches x86-64's 32-bit ELF support to use the shared
fs/compat_binfmt_elf.c code instead of our own ia32_binfmt.c.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This revamps the i387 code to be shared across 32-bit, 64-bit,
and 32-on-64. It does so by consolidating the code in one place
based on the user_regset accessor interfaces. This switches
32-bit to using the i387_64.h header and 64-bit to using the
i387.c that was previously i387_32.c, but that's what took the
least cleanup in each file. Here i387.h is stubbed to always
include i387_64.h rather than renaming the file, to keep this
diff smaller and easier to read.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This switches over the 64-bit build to use the shared ptrace code,
instead of the old ptrace_64.c and arch/x86/ia32/ptrace32.c code.Signed-off-by: Roland McGrath
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This renames arch/x86/ia32/tls32.c to arch/x86/kernel/tls.c, which does
nothing now but paves the way to consolidate this code for 32-bit too.Signed-off-by: Roland McGrath
Cc: Andrew Morton
Cc: Zachary Amsden
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This removes all the old vsyscall code from arch/x86/ia32/ that is
no longer used because arch/x86/vdso/ code has replaced it.Signed-off-by: Roland McGrath
Cc: Andrew Morton
Cc: Linus Torvalds
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
This makes x86_64's ia32 emulation support share the sources used in the
32-bit kernel for the 32-bit vDSO and much of its setup code.The 32-bit vDSO mapping now behaves the same on x86_64 as on native 32-bit.
The abi.syscall32 sysctl on x86_64 now takes the same values that
vm.vdso_enabled takes on the 32-bit kernel. That is, 1 means a randomized
vDSO location, 2 means the fixed old address. The CONFIG_COMPAT_VDSO
option is now available to make this the default setting, the same meaning
it has for the 32-bit kernel. (This does not affect the 64-bit vDSO.)The argument vdso32=[012] can be used on both 32-bit and 64-bit kernels to
set this paramter at boot time. The vdso=[012] argument still does this
same thing on the 32-bit kernel.Signed-off-by: Roland McGrath
Cc: Andrew Morton
Cc: Linus Torvalds
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Use mmap_32.c in arch/x86/mm instead
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar
18 Oct, 2007
1 commit
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This keeps an unstripped copy of the vDSO images built before they are
stripped and embedded in the kernel. The unstripped copies get installed
in $(MODLIB)/vdso/ by "make install" (or you can explicitly use the
subtarget "make vdso_install"). These files can be useful when they
contain source-level debugging information.[ tglx: arch/x86 adaptation ]
Signed-off-by: Roland McGrath
Signed-off-by: Andi Kleen
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner
11 Oct, 2007
1 commit
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Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar