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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-26 01:16:24 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 16:14:49 +0300 |
| commit | fd9689bf91131c4bea5ea54f828af5267f5ed6a0 (patch) | |
| tree | 5201b15fc642cf06cd834217eacd90e463adcf97 /arch/x86/kernel/traps.c | |
| parent | 99a3fb8d01af1085f16a417a748e0a462dc92d29 (diff) | |
| download | linux-fd9689bf91131c4bea5ea54f828af5267f5ed6a0.tar.xz | |
x86/entry: Convert Stack segment exception to IDTENTRY
Convert #SS to IDTENTRY_ERRORCODE:
- Implement the C entry point with DEFINE_IDTENTRY
- Emit the ASM stub with DECLARE_IDTENTRY
- Remove the ASM idtentry in 64bit
- Remove the open coded ASM entry code in 32bit
- Fixup the XEN/PV code
- Remove the old prototypes
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200505134905.539867572@linutronix.de
Diffstat (limited to 'arch/x86/kernel/traps.c')
| -rw-r--r-- | arch/x86/kernel/traps.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 88ba5f0400fd..3dfdc4d3de87 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -264,16 +264,12 @@ DEFINE_IDTENTRY_ERRORCODE(exc_segment_not_present) SIGBUS, 0, NULL); } -#define IP ((void __user *)uprobe_get_trap_addr(regs)) -#define DO_ERROR(trapnr, signr, sicode, addr, str, name) \ -dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \ -{ \ - do_error_trap(regs, error_code, str, trapnr, signr, sicode, addr); \ +DEFINE_IDTENTRY_ERRORCODE(exc_stack_segment) +{ + do_error_trap(regs, error_code, "stack segment", X86_TRAP_SS, SIGBUS, + 0, NULL); } -DO_ERROR(X86_TRAP_SS, SIGBUS, 0, NULL, "stack segment", stack_segment) -#undef IP - dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code) { char *str = "alignment check"; |