| Kconfig (60675d4ca1ef0857e44eba5849b74a3a998d0c0f) | Kconfig (533c20b062d7c25cbcbadb31e3ecb95a08ddb877) |
|---|---|
| 1# SPDX-License-Identifier: GPL-2.0-only 2# 3# Architectures that offer an FUNCTION_TRACER implementation should 4# select HAVE_FUNCTION_TRACER: 5# 6 7config USER_STACKTRACE_SUPPORT 8 bool --- 17 unchanged lines hidden (view full) --- 26 help 27 See Documentation/trace/ftrace-design.rst 28 29config HAVE_FUNCTION_GRAPH_TRACER 30 bool 31 help 32 See Documentation/trace/ftrace-design.rst 33 | 1# SPDX-License-Identifier: GPL-2.0-only 2# 3# Architectures that offer an FUNCTION_TRACER implementation should 4# select HAVE_FUNCTION_TRACER: 5# 6 7config USER_STACKTRACE_SUPPORT 8 bool --- 17 unchanged lines hidden (view full) --- 26 help 27 See Documentation/trace/ftrace-design.rst 28 29config HAVE_FUNCTION_GRAPH_TRACER 30 bool 31 help 32 See Documentation/trace/ftrace-design.rst 33 |
| 34config HAVE_FUNCTION_GRAPH_RETVAL | 34config HAVE_FUNCTION_GRAPH_FREGS |
| 35 bool 36 | 35 bool 36 |
| 37config HAVE_FTRACE_GRAPH_FUNC 38 bool 39 help 40 True if ftrace_graph_func() is defined. 41 |
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| 37config HAVE_DYNAMIC_FTRACE 38 bool 39 help 40 See Documentation/trace/ftrace-design.rst 41 42config HAVE_DYNAMIC_FTRACE_WITH_REGS 43 bool 44 --- 7 unchanged lines hidden (view full) --- 52 bool 53 help 54 If this is set, then arguments and stack can be found from 55 the ftrace_regs passed into the function callback regs parameter 56 by default, even without setting the REGS flag in the ftrace_ops. 57 This allows for use of ftrace_regs_get_argument() and 58 ftrace_regs_get_stack_pointer(). 59 | 42config HAVE_DYNAMIC_FTRACE 43 bool 44 help 45 See Documentation/trace/ftrace-design.rst 46 47config HAVE_DYNAMIC_FTRACE_WITH_REGS 48 bool 49 --- 7 unchanged lines hidden (view full) --- 57 bool 58 help 59 If this is set, then arguments and stack can be found from 60 the ftrace_regs passed into the function callback regs parameter 61 by default, even without setting the REGS flag in the ftrace_ops. 62 This allows for use of ftrace_regs_get_argument() and 63 ftrace_regs_get_stack_pointer(). 64 |
| 65config HAVE_FTRACE_REGS_HAVING_PT_REGS 66 bool 67 help 68 If this is set, ftrace_regs has pt_regs, thus it can convert to 69 pt_regs without allocating memory. 70 |
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| 60config HAVE_DYNAMIC_FTRACE_NO_PATCHABLE 61 bool 62 help 63 If the architecture generates __patchable_function_entries sections 64 but does not want them included in the ftrace locations. 65 66config HAVE_FTRACE_MCOUNT_RECORD 67 bool --- 159 unchanged lines hidden (view full) --- 227 and its entry. 228 Its first purpose is to trace the duration of functions and 229 draw a call graph for each thread with some information like 230 the return value. This is done by setting the current return 231 address on the current task structure into a stack of calls. 232 233config FUNCTION_GRAPH_RETVAL 234 bool "Kernel Function Graph Return Value" | 71config HAVE_DYNAMIC_FTRACE_NO_PATCHABLE 72 bool 73 help 74 If the architecture generates __patchable_function_entries sections 75 but does not want them included in the ftrace locations. 76 77config HAVE_FTRACE_MCOUNT_RECORD 78 bool --- 159 unchanged lines hidden (view full) --- 238 and its entry. 239 Its first purpose is to trace the duration of functions and 240 draw a call graph for each thread with some information like 241 the return value. This is done by setting the current return 242 address on the current task structure into a stack of calls. 243 244config FUNCTION_GRAPH_RETVAL 245 bool "Kernel Function Graph Return Value" |
| 235 depends on HAVE_FUNCTION_GRAPH_RETVAL | 246 depends on HAVE_FUNCTION_GRAPH_FREGS |
| 236 depends on FUNCTION_GRAPH_TRACER 237 default n 238 help 239 Support recording and printing the function return value when 240 using function graph tracer. It can be helpful to locate functions 241 that return errors. This feature is off by default, and you can 242 enable it via the trace option funcgraph-retval. 243 See Documentation/trace/ftrace.rst 244 245config FUNCTION_GRAPH_RETADDR 246 bool "Kernel Function Graph Return Address" 247 depends on FUNCTION_GRAPH_TRACER 248 default n 249 help 250 Support recording and printing the function return address when 251 using function graph tracer. It can be helpful to locate code line that 252 the function is called. This feature is off by default, and you can 253 enable it via the trace option funcgraph-retaddr. 254 | 247 depends on FUNCTION_GRAPH_TRACER 248 default n 249 help 250 Support recording and printing the function return value when 251 using function graph tracer. It can be helpful to locate functions 252 that return errors. This feature is off by default, and you can 253 enable it via the trace option funcgraph-retval. 254 See Documentation/trace/ftrace.rst 255 256config FUNCTION_GRAPH_RETADDR 257 bool "Kernel Function Graph Return Address" 258 depends on FUNCTION_GRAPH_TRACER 259 default n 260 help 261 Support recording and printing the function return address when 262 using function graph tracer. It can be helpful to locate code line that 263 the function is called. This feature is off by default, and you can 264 enable it via the trace option funcgraph-retaddr. 265 |
| 266config FUNCTION_TRACE_ARGS 267 bool 268 depends on HAVE_FUNCTION_ARG_ACCESS_API 269 depends on DEBUG_INFO_BTF 270 default y 271 |
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| 255config DYNAMIC_FTRACE 256 bool "enable/disable function tracing dynamically" 257 depends on FUNCTION_TRACER 258 depends on HAVE_DYNAMIC_FTRACE 259 default y 260 help 261 This option will modify all the calls to function tracing 262 dynamically (will patch them out of the binary image and --- 28 unchanged lines hidden (view full) --- 291 292config DYNAMIC_FTRACE_WITH_ARGS 293 def_bool y 294 depends on DYNAMIC_FTRACE 295 depends on HAVE_DYNAMIC_FTRACE_WITH_ARGS 296 297config FPROBE 298 bool "Kernel Function Probe (fprobe)" | 272config DYNAMIC_FTRACE 273 bool "enable/disable function tracing dynamically" 274 depends on FUNCTION_TRACER 275 depends on HAVE_DYNAMIC_FTRACE 276 default y 277 help 278 This option will modify all the calls to function tracing 279 dynamically (will patch them out of the binary image and --- 28 unchanged lines hidden (view full) --- 308 309config DYNAMIC_FTRACE_WITH_ARGS 310 def_bool y 311 depends on DYNAMIC_FTRACE 312 depends on HAVE_DYNAMIC_FTRACE_WITH_ARGS 313 314config FPROBE 315 bool "Kernel Function Probe (fprobe)" |
| 299 depends on FUNCTION_TRACER 300 depends on DYNAMIC_FTRACE_WITH_REGS 301 depends on HAVE_RETHOOK 302 select RETHOOK | 316 depends on HAVE_FUNCTION_GRAPH_FREGS && HAVE_FTRACE_GRAPH_FUNC 317 depends on DYNAMIC_FTRACE_WITH_ARGS 318 select FUNCTION_GRAPH_TRACER |
| 303 default n 304 help 305 This option enables kernel function probe (fprobe) based on ftrace. 306 The fprobe is similar to kprobes, but probes only for kernel function 307 entries and exits. This also can probe multiple functions by one 308 fprobe. 309 310 If unsure, say N. --- 887 unchanged lines hidden --- | 319 default n 320 help 321 This option enables kernel function probe (fprobe) based on ftrace. 322 The fprobe is similar to kprobes, but probes only for kernel function 323 entries and exits. This also can probe multiple functions by one 324 fprobe. 325 326 If unsure, say N. --- 887 unchanged lines hidden --- |