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x86/idt: Remove the tracing IDT completely

Sfoglia il codice sorgente 
No more users of the tracing IDT. All exception tracepoints have been moved
into the regular handlers. Get rid of the mess which shouldn't have been
created in the first place.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064957.378851687@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Thomas Gleixner
2017-08-28 08:47:31 +02:00
committato da Ingo Molnar
parent 3cd788c1ee
commit 4b9a8dca0e
7 ha cambiato i file con 9 aggiunte e 170 eliminazioni
Scarica il file Patch Scarica il file Diff Expand all files Collapse all files

12
arch/x86/entry/entry_32.S
Vedi File

@@ -673,16 +673,8 @@ ENTRY(name) \
jmp ret_from_intr; \
ENDPROC(name)
#ifdef CONFIG_TRACING
# define TRACE_BUILD_INTERRUPT(name, nr) BUILD_INTERRUPT3(trace_##name, nr, smp_trace_##name)
#else
# define TRACE_BUILD_INTERRUPT(name, nr)
#endif
#define BUILD_INTERRUPT(name, nr) \
BUILD_INTERRUPT3(name, nr, smp_##name); \
TRACE_BUILD_INTERRUPT(name, nr)
/* The include is where all of the SMP etc. interrupts come from */
#include <asm/entry_arch.h>
@@ -880,14 +872,14 @@ ENTRY(xen_failsafe_callback)
ENDPROC(xen_failsafe_callback)
BUILD_INTERRUPT3(xen_hvm_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
xen_evtchn_do_upcall)
xen_evtchn_do_upcall)
#endif /* CONFIG_XEN */
#if IS_ENABLED(CONFIG_HYPERV)
BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
hyperv_vector_handler)
hyperv_vector_handler)
#endif /* CONFIG_HYPERV */

13
arch/x86/entry/entry_64.S
Vedi File

@@ -748,18 +748,6 @@ ENTRY(\sym)
END(\sym)
.endm
#ifdef CONFIG_TRACING
#define trace(sym) trace_##sym
#define smp_trace(sym) smp_trace_##sym
.macro trace_apicinterrupt num sym
apicinterrupt3 \num trace(\sym) smp_trace(\sym)
.endm
#else
.macro trace_apicinterrupt num sym do_sym
.endm
#endif
/* Make sure APIC interrupt handlers end up in the irqentry section: */
#if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
# define PUSH_SECTION_IRQENTRY .pushsection .irqentry.text, "ax"
@@ -772,7 +760,6 @@ apicinterrupt3 \num trace(\sym) smp_trace(\sym)
.macro apicinterrupt num sym do_sym
PUSH_SECTION_IRQENTRY
apicinterrupt3 \num \sym \do_sym
trace_apicinterrupt \num \sym
POP_SECTION_IRQENTRY
.endm