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| author | Jeremy Fitzhardinge | 2007-07-18 03:37:07 +0200 |
|---|---|---|
| committer | Jeremy Fitzhardinge | 2007-07-18 17:47:45 +0200 |
| commit | 600b2fc242992e552e0b4e24c8c1f084b341f39b (patch) | |
| tree | 95aefb763c09054c5695fb1d14ad9fb86191a637 /arch | |
| parent | xen: Attempt to patch inline versions of common operations (diff) | |
| download | kernel-qcow2-linux-600b2fc242992e552e0b4e24c8c1f084b341f39b.tar.gz kernel-qcow2-linux-600b2fc242992e552e0b4e24c8c1f084b341f39b.tar.xz kernel-qcow2-linux-600b2fc242992e552e0b4e24c8c1f084b341f39b.zip | |
xen: suppress abs symbol warnings for unused reloc pointers
arch/i386/xen/xen-asm.S defines some small pieces of code which are
used to implement a few paravirt_ops. They're designed so they can be
used either in-place, or be inline patched into their callsites if
there's enough space.
Some of those operations need to make calls out (specifically, if you
re-enable events [interrupts], and there's a pending event at that
time). These calls need the call instruction to be relocated if the
code is patched inline. In this case xen_foo_reloc is a
section-relative symbol which points to xen_foo's required relocation.
Other operations have no need of a relocation, and so their
corresponding xen_bar_reloc is absolute 0. These are the cases which
are triggering the warning.
This patch adds those symbols to the list of safe abs symbols.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/boot/compressed/relocs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/i386/boot/compressed/relocs.c b/arch/i386/boot/compressed/relocs.c index ce4fda261aaf..b0e21c3cee5c 100644 --- a/arch/i386/boot/compressed/relocs.c +++ b/arch/i386/boot/compressed/relocs.c @@ -31,6 +31,8 @@ static const char* safe_abs_relocs[] = { "__kernel_rt_sigreturn", "__kernel_sigreturn", "SYSENTER_RETURN", + "xen_irq_disable_direct_reloc", + "xen_save_fl_direct_reloc", }; static int is_safe_abs_reloc(const char* sym_name) |