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| author |   Oleg Nesterov <oleg@redhat.com> | 2014-03-31 21:01:31 +0200 |
|---|---|---|
| committer | Oleg Nesterov <oleg@redhat.com> | 2014-04-17 21:58:19 +0200 |
| commit | 8ad8e9d3fd64f101eed6652964670672d699e563 (patch) | |
| tree | 746e9f28e45b400e3ca4afe2866616545be92de9 /arch/x86/include/asm/uprobes.h | |
| parent | uprobes/x86: move the UPROBE_FIX_{RIP,IP,CALL} code at the end of pre/post hooks (diff) | |
| download | linux-dev-8ad8e9d3fd64f101eed6652964670672d699e563.tar.xz linux-dev-8ad8e9d3fd64f101eed6652964670672d699e563.zip | |
uprobes/x86: Introduce uprobe_xol_ops and arch_uprobe->ops
Introduce arch_uprobe->ops pointing to the "struct uprobe_xol_ops",
move the current UPROBE_FIX_{RIP*,IP,CALL} code into the default
set of methods and change arch_uprobe_pre/post_xol() accordingly.
This way we can add the new uprobe_xol_ops's to handle the insns
which need the special processing (rip-relative jmp/call at least).
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Jim Keniston <jkenisto@us.ibm.com>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Diffstat (limited to 'arch/x86/include/asm/uprobes.h')
| -rw-r--r-- | arch/x86/include/asm/uprobes.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h index 3087ea9c5f2e..9f8210bcbb49 100644 --- a/arch/x86/include/asm/uprobes.h +++ b/arch/x86/include/asm/uprobes.h @@ -33,12 +33,17 @@ typedef u8 uprobe_opcode_t; #define UPROBE_SWBP_INSN 0xcc #define UPROBE_SWBP_INSN_SIZE 1 +struct uprobe_xol_ops; + struct arch_uprobe { - u16 fixups; union { u8 insn[MAX_UINSN_BYTES]; u8 ixol[MAX_UINSN_BYTES]; }; + + u16 fixups; + const struct uprobe_xol_ops *ops; + #ifdef CONFIG_X86_64 unsigned long rip_rela_target_address; #endif |