e9a4062e15
Add the option allow the users to set a different buffer size for the trace. For example, in large systems, the user might be interested on reducing the trace buffer to avoid large tracing files. The buffer size is specified in kB, and it is only affecting the tracing instance. The function trace_set_buffer_size() appears on libtracefs v1.6, so increase the minimum required version on Makefile.config. Link: https://lkml.kernel.org/r/e7c9ca5b3865f28e131a49ec3b984fadf2d056c6.1715860611.git.bristot@kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: John Kacur <jkacur@redhat.com> Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
48 lines
1.3 KiB
Makefile
48 lines
1.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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STOP_ERROR :=
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LIBTRACEEVENT_MIN_VERSION = 1.5
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LIBTRACEFS_MIN_VERSION = 1.6
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define lib_setup
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$(eval LIB_INCLUDES += $(shell sh -c "$(PKG_CONFIG) --cflags lib$(1)"))
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$(eval EXTLIBS += -l$(1))
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endef
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$(call feature_check,libtraceevent)
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ifeq ($(feature-libtraceevent), 1)
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$(call detected,CONFIG_LIBTRACEEVENT)
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TEST = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 && echo y || echo n")
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ifeq ($(TEST),n)
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$(info libtraceevent version is too low, it must be at least $(LIBTRACEEVENT_MIN_VERSION))
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STOP_ERROR := 1
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endif
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$(call lib_setup,traceevent)
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else
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STOP_ERROR := 1
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$(info libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel)
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endif
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$(call feature_check,libtracefs)
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ifeq ($(feature-libtracefs), 1)
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$(call detected,CONFIG_LIBTRACEFS)
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TEST = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 && echo y || echo n")
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ifeq ($(TEST),n)
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$(info libtracefs version is too low, it must be at least $(LIBTRACEFS_MIN_VERSION))
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STOP_ERROR := 1
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endif
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$(call lib_setup,tracefs)
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else
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STOP_ERROR := 1
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$(info libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
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endif
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ifeq ($(STOP_ERROR),1)
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$(error Please, check the errors above.)
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endif
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