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perf/urgent fixes:

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- Fix link time error with sample_reg_masks on non x86 (Stephane Eranian)
 
 - Fix potential array out of bounds access (Wang Nan)
 
 - Fix Intel PT instruction decoder dependency problem (Wang Nan)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

  - Fix link time error with sample_reg_masks on non-x86. (Stephane Eranian)

  - Fix potential array out of bounds access. (Wang Nan)

  - Fix Intel PT instruction decoder dependency problem. (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-09-02 09:22:53 +02:00
parent 5320266124 af4aeadd8c
commit 5b923564cc
7 changed files with 31 additions and 26 deletions
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2
tools/perf/arch/sh/util/dwarf-regs.c
View file

@ -51,5 +51,5 @@ const char *sh_regs_table[SH_MAX_REGS] = {
/* Return architecture dependent register string (for kprobe-tracer) */
const char *get_arch_regstr(unsigned int n)
{
return (n <= SH_MAX_REGS) ? sh_regs_table[n] : NULL;
return (n < SH_MAX_REGS) ? sh_regs_table[n] : NULL;
}

2
tools/perf/arch/sparc/util/dwarf-regs.c
View file

@ -39,5 +39,5 @@ const char *sparc_regs_table[SPARC_MAX_REGS] = {
*/
const char *get_arch_regstr(unsigned int n)
{
return (n <= SPARC_MAX_REGS) ? sparc_regs_table[n] : NULL;
return (n < SPARC_MAX_REGS) ? sparc_regs_table[n] : NULL;
}

2
tools/perf/arch/x86/util/dwarf-regs.c
View file

@ -71,5 +71,5 @@ const char *x86_64_regs_table[X86_64_MAX_REGS] = {
/* Return architecture dependent register string (for kprobe-tracer) */
const char *get_arch_regstr(unsigned int n)
{
return (n <= ARCH_MAX_REGS) ? arch_regs_table[n] : NULL;
return (n < ARCH_MAX_REGS) ? arch_regs_table[n] : NULL;
}

44
tools/perf/arch/x86/util/perf_regs.c
View file

@ -1,30 +1,28 @@
#include "../../perf.h"
#include "../../util/perf_regs.h"
#define REG(n, b) { .name = #n, .mask = 1ULL << (b) }
#define REG_END { .name = NULL }
const struct sample_reg sample_reg_masks[] = {
REG(AX, PERF_REG_X86_AX),
REG(BX, PERF_REG_X86_BX),
REG(CX, PERF_REG_X86_CX),
REG(DX, PERF_REG_X86_DX),
REG(SI, PERF_REG_X86_SI),
REG(DI, PERF_REG_X86_DI),
REG(BP, PERF_REG_X86_BP),
REG(SP, PERF_REG_X86_SP),
REG(IP, PERF_REG_X86_IP),
REG(FLAGS, PERF_REG_X86_FLAGS),
REG(CS, PERF_REG_X86_CS),
REG(SS, PERF_REG_X86_SS),
SMPL_REG(AX, PERF_REG_X86_AX),
SMPL_REG(BX, PERF_REG_X86_BX),
SMPL_REG(CX, PERF_REG_X86_CX),
SMPL_REG(DX, PERF_REG_X86_DX),
SMPL_REG(SI, PERF_REG_X86_SI),
SMPL_REG(DI, PERF_REG_X86_DI),
SMPL_REG(BP, PERF_REG_X86_BP),
SMPL_REG(SP, PERF_REG_X86_SP),
SMPL_REG(IP, PERF_REG_X86_IP),
SMPL_REG(FLAGS, PERF_REG_X86_FLAGS),
SMPL_REG(CS, PERF_REG_X86_CS),
SMPL_REG(SS, PERF_REG_X86_SS),
#ifdef HAVE_ARCH_X86_64_SUPPORT
REG(R8, PERF_REG_X86_R8),
REG(R9, PERF_REG_X86_R9),
REG(R10, PERF_REG_X86_R10),
REG(R11, PERF_REG_X86_R11),
REG(R12, PERF_REG_X86_R12),
REG(R13, PERF_REG_X86_R13),
REG(R14, PERF_REG_X86_R14),
REG(R15, PERF_REG_X86_R15),
SMPL_REG(R8, PERF_REG_X86_R8),
SMPL_REG(R9, PERF_REG_X86_R9),
SMPL_REG(R10, PERF_REG_X86_R10),
SMPL_REG(R11, PERF_REG_X86_R11),
SMPL_REG(R12, PERF_REG_X86_R12),
SMPL_REG(R13, PERF_REG_X86_R13),
SMPL_REG(R14, PERF_REG_X86_R14),
SMPL_REG(R15, PERF_REG_X86_R15),
#endif
REG_END
SMPL_REG_END
};

1
tools/perf/util/intel-pt-decoder/Build
View file

@ -4,6 +4,7 @@ inat_tables_script = util/intel-pt-decoder/gen-insn-attr-x86.awk
inat_tables_maps = util/intel-pt-decoder/x86-opcode-map.txt
$(OUTPUT)util/intel-pt-decoder/inat-tables.c: $(inat_tables_script) $(inat_tables_maps)
$(call rule_mkdir)
@$(call echo-cmd,gen)$(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@
$(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/inat.c $(OUTPUT)util/intel-pt-decoder/inat-tables.c

4
tools/perf/util/perf_regs.c
View file

@ -2,6 +2,10 @@
#include "perf_regs.h"
#include "event.h"
const struct sample_reg __weak sample_reg_masks[] = {
SMPL_REG_END
};
int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
{
int i, idx = 0;

2
tools/perf/util/perf_regs.h
View file

@ -9,6 +9,8 @@ struct sample_reg {
const char *name;
uint64_t mask;
};
#define SMPL_REG(n, b) { .name = #n, .mask = 1ULL << (b) }
#define SMPL_REG_END { .name = NULL }
extern const struct sample_reg sample_reg_masks[];