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Commit 96ee0499 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools, x86: Build perf on older user-space as well
  perf tools: Use scnprintf where applicable
  perf tools: Incorrect use of snprintf results in SEGV
parents cb1ecf25 89c5bd08

tools/perf/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -249,6 +249,8 @@ LIB_H += util/include/asm/uaccess.h 
LIB_H += util/include/dwarf-regs.h

LIB_H += util/include/asm/dwarf2.h

LIB_H += util/include/asm/cpufeature.h

LIB_H += util/include/asm/unistd_32.h

LIB_H += util/include/asm/unistd_64.h

LIB_H += perf.h

LIB_H += util/annotate.h

LIB_H += util/cache.h

tools/perf/arch/powerpc/util/header.c

+1 −1
Original line number Diff line number Diff line
@@ -25,7 +25,7 @@ get_cpuid(char *buffer, size_t sz) 


	pvr = mfspr(SPRN_PVR);



	nb = snprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));

	nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));



	/* look for end marker to ensure the entire data fit */

	if (strchr(buffer, '$')) {

tools/perf/arch/x86/util/header.c

+1 −1
Original line number Diff line number Diff line
@@ -48,7 +48,7 @@ get_cpuid(char *buffer, size_t sz) 
		if (family >= 0x6)

			model += ((a >> 16) & 0xf) << 4;

	}

	nb = snprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);

	nb = scnprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);



	/* look for end marker to ensure the entire data fit */

	if (strchr(buffer, '$')) {

tools/perf/perf.h

+6 −0
Original line number Diff line number Diff line
@@ -10,6 +10,9 @@ void get_term_dimensions(struct winsize *ws); 
#define rmb()		asm volatile("lock; addl $0,0(%%esp)" ::: "memory")

#define cpu_relax()	asm volatile("rep; nop" ::: "memory");

#define CPUINFO_PROC	"model name"

#ifndef __NR_perf_event_open

# define __NR_perf_event_open 336

#endif

#endif



#if defined(__x86_64__)
@@ -17,6 +20,9 @@ void get_term_dimensions(struct winsize *ws); 
#define rmb()		asm volatile("lfence" ::: "memory")

#define cpu_relax()	asm volatile("rep; nop" ::: "memory");

#define CPUINFO_PROC	"model name"

#ifndef __NR_perf_event_open

# define __NR_perf_event_open 298

#endif

#endif



#ifdef __powerpc__

tools/perf/util/color.c

+5 −4
Original line number Diff line number Diff line 
#include <linux/kernel.h>

#include "cache.h"

#include "color.h"
@@ -182,12 +183,12 @@ static int __color_vsnprintf(char *bf, size_t size, const char *color, 
	}



	if (perf_use_color_default && *color)

		r += snprintf(bf, size, "%s", color);

	r += vsnprintf(bf + r, size - r, fmt, args);

		r += scnprintf(bf, size, "%s", color);

	r += vscnprintf(bf + r, size - r, fmt, args);

	if (perf_use_color_default && *color)

		r += snprintf(bf + r, size - r, "%s", PERF_COLOR_RESET);

		r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET);

	if (trail)

		r += snprintf(bf + r, size - r, "%s", trail);

		r += scnprintf(bf + r, size - r, "%s", trail);

	return r;

}