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debug: generate call graph profile data using gprof

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This will generate profile data that can be analyzed using gprof. When
you build the application (currently for native_posix only), after
running the application you will get a file "gmon.out" with the call
graph which can be processed with gprof:

  gprof build/zephyr/zephyr.exe gmon.out > analysis.txt

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Anas Nashif 2022-04-21 10:38:32 -04:00
commit 399a0b4b31
4 changed files with 15 additions and 1 deletions
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4
arch/posix/CMakeLists.txt
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@ -24,6 +24,10 @@ zephyr_compile_options($<TARGET_PROPERTY:compiler,hosted>)
zephyr_include_directories(${BOARD_DIR}) zephyr_include_directories(${BOARD_DIR})
if (CONFIG_GPROF)
zephyr_compile_options($<TARGET_PROPERTY:compiler,gprof>)
zephyr_link_libraries($<TARGET_PROPERTY:linker,gprof>)
endif()
if (CONFIG_ASAN) if (CONFIG_ASAN)
zephyr_compile_options($<TARGET_PROPERTY:compiler,sanitize_address>) zephyr_compile_options($<TARGET_PROPERTY:compiler,sanitize_address>)
zephyr_link_libraries($<TARGET_PROPERTY:linker,sanitize_address>) zephyr_link_libraries($<TARGET_PROPERTY:linker,sanitize_address>)

2
cmake/compiler/gcc/compiler_flags.cmake
View file

@ -177,6 +177,8 @@ set_compiler_property(PROPERTY imacros -imacros)
# GCC compiler flags for sanitizing. # GCC compiler flags for sanitizing.
set_compiler_property(PROPERTY sanitize_address -fsanitize=address) set_compiler_property(PROPERTY sanitize_address -fsanitize=address)
set_compiler_property(PROPERTY gprof -pg)
set_compiler_property(PROPERTY sanitize_undefined -fsanitize=undefined) set_compiler_property(PROPERTY sanitize_undefined -fsanitize=undefined)
# GCC compiler flag for turning off thread-safe initialization of local statics # GCC compiler flag for turning off thread-safe initialization of local statics

3
cmake/linker/ld/gcc/linker_flags.cmake
View file

@ -10,5 +10,6 @@ endif()
# ld/gcc linker flags for sanitizing. # ld/gcc linker flags for sanitizing.
check_set_linker_property(TARGET linker APPEND PROPERTY sanitize_address -lasan) check_set_linker_property(TARGET linker APPEND PROPERTY sanitize_address -lasan)
check_set_linker_property(TARGET linker APPEND PROPERTY sanitize_address -fsanitize=address) check_set_linker_property(TARGET linker APPEND PROPERTY sanitize_address -fsanitize=address)
check_set_linker_property(TARGET linker APPEND PROPERTY sanitize_undefined -fsanitize=undefined) check_set_linker_property(TARGET linker APPEND PROPERTY sanitize_undefined -fsanitize=undefined)
check_set_linker_property(TARGET linker APPEND PROPERTY gprof -pg)

7
subsys/debug/Kconfig
View file

@ -99,6 +99,13 @@ config DEBUG
only disables optimization, more debugging variants can be selected only disables optimization, more debugging variants can be selected
from here to allow more debugging. from here to allow more debugging.
config GPROF
bool "Generate profiling information"
depends on ARCH_POSIX
help
Generate call graph profile data for the application that can be
analyzed with gprof
config ASAN config ASAN
bool "Build with address sanitizer" bool "Build with address sanitizer"
depends on ARCH_POSIX depends on ARCH_POSIX