asm/perf_regs.h is an arch-specific linux include, not present on
architectures like hppa and m68k that lack perf_events support.
Only one place we need to fix; others already guard the include by
architecture, or use architecture-independent headers (e.g.
linux/perf_events.h).
* backends/libebl_PERF_FLAGS.h: Only include asm/perf_regs.h on
architectures where we use it.
---
backends/libebl_PERF_FLAGS.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/backends/libebl_PERF_FLAGS.h b/backends/libebl_PERF_FLAGS.h
index 2ed45f0f..51c20ea6 100644
--- a/backends/libebl_PERF_FLAGS.h
+++ b/backends/libebl_PERF_FLAGS.h
@@ -32,8 +32,12 @@
#define _LIBEBL_PERF_FLAGS_H 1
#if defined(__linux__)
+/* XXX Need to exclude __linux__ arches without perf_regs.h. */
+#if defined(__x86_64__) || defined(__i386__)
+/* || defined(other_architecture)... */
# include <asm/perf_regs.h>
#endif
+#endif
#if defined(_ASM_X86_PERF_REGS_H)
/* See the code in x86_initreg_sample.c for list of required regs and
@@ -49,8 +53,8 @@
see the code in tools/perf/util/intel-pt.c intel_pt_add_gp_regs()
and note how regs are added in the same order as the perf_regs.h enum. */
#else
-/* Since asm/perf_regs.h gives the register layout for a different arch,
- we can't unwind x86_64 frames. */
+/* Since asm/perf_regs.h is absent, or gives the register layout for a
+ different arch, we can't unwind i386 and x86_64 frames. */
#define PERF_FRAME_REGISTERS_I386 0
#define PERF_FRAME_REGISTERS_X86_64 0
#endif
--
2.47.0
