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-rw-r--r--tools/perf/config/Makefile232
1 files changed, 169 insertions, 63 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 0331ea2701a3..c23418225c2c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -59,6 +59,18 @@ ifeq ($(NO_PERF_REGS),0)
CFLAGS += -DHAVE_PERF_REGS_SUPPORT
endif
+ifndef NO_LIBELF
+ # for linking with debug library, run like:
+ # make DEBUG=1 LIBDW_DIR=/opt/libdw/
+ ifdef LIBDW_DIR
+ LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
+ LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
+
+ FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
+ FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
+ endif
+endif
+
# include ARCH specific config
-include $(src-perf)/arch/$(ARCH)/Makefile
@@ -147,7 +159,35 @@ CORE_FEATURE_TESTS = \
libunwind \
on-exit \
stackprotector-all \
- timerfd
+ timerfd \
+ libdw-dwarf-unwind
+
+LIB_FEATURE_TESTS = \
+ dwarf \
+ glibc \
+ gtk2 \
+ libaudit \
+ libbfd \
+ libelf \
+ libnuma \
+ libperl \
+ libpython \
+ libslang \
+ libunwind \
+ libdw-dwarf-unwind
+
+VF_FEATURE_TESTS = \
+ backtrace \
+ fortify-source \
+ gtk2-infobar \
+ libelf-getphdrnum \
+ libelf-mmap \
+ libpython-version \
+ on-exit \
+ stackprotector-all \
+ timerfd \
+ libunwind-debug-frame \
+ bionic
# Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
# If in the future we need per-feature checks/flags for features not
@@ -161,17 +201,6 @@ endef
$(foreach feat,$(CORE_FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
#
-# So here we detect whether test-all was rebuilt, to be able
-# to skip the print-out of the long features list if the file
-# existed before and after it was built:
-#
-ifeq ($(wildcard $(OUTPUT)config/feature-checks/test-all.bin),)
- test-all-failed := 1
-else
- test-all-failed := 0
-endif
-
-#
# Special fast-path for the 'all features are available' case:
#
$(call feature_check,all,$(MSG))
@@ -180,15 +209,6 @@ $(call feature_check,all,$(MSG))
# Just in case the build freshly failed, make sure we print the
# feature matrix:
#
-ifeq ($(feature-all), 0)
- test-all-failed := 1
-endif
-
-ifeq ($(test-all-failed),1)
- $(info )
- $(info Auto-detecting system features:)
-endif
-
ifeq ($(feature-all), 1)
#
# test-all.c passed - just set all the core feature flags to 1:
@@ -199,27 +219,6 @@ else
$(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
endif
-#
-# Print the result of the feature test:
-#
-feature_print = $(eval $(feature_print_code)) $(info $(MSG))
-
-define feature_print_code
- ifeq ($(feature-$(1)), 1)
- MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
- else
- MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
- endif
-endef
-
-#
-# Only print out our features if we rebuilt the testcases or if a test failed:
-#
-ifeq ($(test-all-failed), 1)
- $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_print,$(feat)))
- $(info )
-endif
-
ifeq ($(feature-stackprotector-all), 1)
CFLAGS += -fstack-protector-all
endif
@@ -264,6 +263,7 @@ ifdef NO_LIBELF
NO_DWARF := 1
NO_DEMANGLE := 1
NO_LIBUNWIND := 1
+ NO_LIBDW_DWARF_UNWIND := 1
else
ifeq ($(feature-libelf), 0)
ifeq ($(feature-glibc), 1)
@@ -282,13 +282,12 @@ else
msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
endif
else
- # for linking with debug library, run like:
- # make DEBUG=1 LIBDW_DIR=/opt/libdw/
- ifdef LIBDW_DIR
- LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
- LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
+ ifndef NO_LIBDW_DWARF_UNWIND
+ ifneq ($(feature-libdw-dwarf-unwind),1)
+ NO_LIBDW_DWARF_UNWIND := 1
+ msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
+ endif
endif
-
ifneq ($(feature-dwarf), 1)
msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
NO_DWARF := 1
@@ -324,25 +323,51 @@ endif # NO_LIBELF
ifndef NO_LIBUNWIND
ifneq ($(feature-libunwind), 1)
- msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1);
+ msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
NO_LIBUNWIND := 1
+ endif
+endif
+
+dwarf-post-unwind := 1
+dwarf-post-unwind-text := BUG
+
+# setup DWARF post unwinder
+ifdef NO_LIBUNWIND
+ ifdef NO_LIBDW_DWARF_UNWIND
+ msg := $(warning Disabling post unwind, no support found.);
+ dwarf-post-unwind := 0
else
- ifeq ($(ARCH),arm)
- $(call feature_check,libunwind-debug-frame)
- ifneq ($(feature-libunwind-debug-frame), 1)
- msg := $(warning No debug_frame support found in libunwind);
- CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
- endif
- else
- # non-ARM has no dwarf_find_debug_frame() function:
+ dwarf-post-unwind-text := libdw
+ endif
+else
+ dwarf-post-unwind-text := libunwind
+ # Enable libunwind support by default.
+ ifndef NO_LIBDW_DWARF_UNWIND
+ NO_LIBDW_DWARF_UNWIND := 1
+ endif
+endif
+
+ifeq ($(dwarf-post-unwind),1)
+ CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
+else
+ NO_DWARF_UNWIND := 1
+endif
+
+ifndef NO_LIBUNWIND
+ ifeq ($(ARCH),arm)
+ $(call feature_check,libunwind-debug-frame)
+ ifneq ($(feature-libunwind-debug-frame), 1)
+ msg := $(warning No debug_frame support found in libunwind);
CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
endif
-
- CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
- EXTLIBS += $(LIBUNWIND_LIBS)
- CFLAGS += $(LIBUNWIND_CFLAGS)
- LDFLAGS += $(LIBUNWIND_LDFLAGS)
- endif # ifneq ($(feature-libunwind), 1)
+ else
+ # non-ARM has no dwarf_find_debug_frame() function:
+ CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
+ endif
+ CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
+ EXTLIBS += $(LIBUNWIND_LIBS)
+ CFLAGS += $(LIBUNWIND_CFLAGS)
+ LDFLAGS += $(LIBUNWIND_LDFLAGS)
endif
ifndef NO_LIBAUDIT
@@ -602,3 +627,84 @@ ifdef DESTDIR
plugindir=$(libdir)/traceevent/plugins
plugindir_SQ= $(subst ','\'',$(plugindir))
endif
+
+#
+# Print the result of the feature test:
+#
+feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
+
+define feature_print_status_code
+ ifeq ($(feature-$(1)), 1)
+ MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
+ else
+ MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
+ endif
+endef
+
+feature_print_var = $(eval $(feature_print_var_code)) $(info $(MSG))
+define feature_print_var_code
+ MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
+endef
+
+feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
+define feature_print_text_code
+ MSG = $(shell printf '...%30s: %s' $(1) $(2))
+endef
+
+PERF_FEATURES := $(foreach feat,$(LIB_FEATURE_TESTS),feature-$(feat)($(feature-$(feat))))
+PERF_FEATURES_FILE := $(shell touch $(OUTPUT)PERF-FEATURES; cat $(OUTPUT)PERF-FEATURES)
+
+ifeq ($(dwarf-post-unwind),1)
+ PERF_FEATURES += dwarf-post-unwind($(dwarf-post-unwind-text))
+endif
+
+# The $(display_lib) controls the default detection message
+# output. It's set if:
+# - detected features differes from stored features from
+# last build (in PERF-FEATURES file)
+# - one of the $(LIB_FEATURE_TESTS) is not detected
+# - VF is enabled
+
+ifneq ("$(PERF_FEATURES)","$(PERF_FEATURES_FILE)")
+ $(shell echo "$(PERF_FEATURES)" > $(OUTPUT)PERF-FEATURES)
+ display_lib := 1
+endif
+
+feature_check = $(eval $(feature_check_code))
+define feature_check_code
+ ifneq ($(feature-$(1)), 1)
+ display_lib := 1
+ endif
+endef
+
+$(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_check,$(feat)))
+
+ifeq ($(VF),1)
+ display_lib := 1
+ display_vf := 1
+endif
+
+ifeq ($(display_lib),1)
+ $(info )
+ $(info Auto-detecting system features:)
+ $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_print_status,$(feat),))
+
+ ifeq ($(dwarf-post-unwind),1)
+ $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
+ endif
+endif
+
+ifeq ($(display_vf),1)
+ $(foreach feat,$(VF_FEATURE_TESTS),$(call feature_print_status,$(feat),))
+ $(info )
+ $(call feature_print_var,prefix)
+ $(call feature_print_var,bindir)
+ $(call feature_print_var,libdir)
+ $(call feature_print_var,sysconfdir)
+ $(call feature_print_var,LIBUNWIND_DIR)
+ $(call feature_print_var,LIBDW_DIR)
+endif
+
+ifeq ($(display_lib),1)
+ $(info )
+endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.