perf dwarf: Guard !x86_64 definitions under #ifdef else clause

To fix the build on Fedora Rawhide (gcc 6.0.0 20160311 (Red Hat 6.0.0-0.17):

    CC       /tmp/build/perf/arch/x86/util/dwarf-regs.o
  arch/x86/util/dwarf-regs.c:66:36: error: 'x86_32_regoffset_table' defined but not used [-Werror=unused-const-variable=]
   static const struct pt_regs_offset x86_32_regoffset_table[] = {
                                      ^~~~~~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fghuksc1u8ln82bof4lwcj0o@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 22a9f41b
......@@ -63,6 +63,8 @@ struct pt_regs_offset {
# define REG_OFFSET_NAME_32(n, r) {.name = n, .offset = offsetof(struct pt_regs, r)}
#endif
/* TODO: switching by dwarf address size */
#ifndef __x86_64__
static const struct pt_regs_offset x86_32_regoffset_table[] = {
REG_OFFSET_NAME_32("%ax", eax),
REG_OFFSET_NAME_32("%cx", ecx),
......@@ -75,6 +77,8 @@ static const struct pt_regs_offset x86_32_regoffset_table[] = {
REG_OFFSET_END,
};
#define regoffset_table x86_32_regoffset_table
#else
static const struct pt_regs_offset x86_64_regoffset_table[] = {
REG_OFFSET_NAME_64("%ax", rax),
REG_OFFSET_NAME_64("%dx", rdx),
......@@ -95,11 +99,7 @@ static const struct pt_regs_offset x86_64_regoffset_table[] = {
REG_OFFSET_END,
};
/* TODO: switching by dwarf address size */
#ifdef __x86_64__
#define regoffset_table x86_64_regoffset_table
#else
#define regoffset_table x86_32_regoffset_table
#endif
/* Minus 1 for the ending REG_OFFSET_END */
......
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