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arm64: entry-ftrace.S: Convert to modern annotations for assembly functions

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In an effort to clarify and simplify the annotation of assembly functions
in the kernel new macros have been introduced. These replace ENTRY and
ENDPROC and also add a new annotation for static functions which previously
had no ENTRY equivalent. Update the annotations in the core kernel code to
the new macros.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Mark Brown 2020-02-18 19:58:30 +00:00 committed by Catalin Marinas
parent e7bf697217
commit e2d591d29d
1 changed files with 14 additions and 14 deletions
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28
arch/arm64/kernel/entry-ftrace.S
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@ -91,11 +91,11 @@ ENTRY(ftrace_common)
ldr_l x2, function_trace_op // op
mov x3, sp // regs
GLOBAL(ftrace_call)
SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
bl ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
GLOBAL(ftrace_graph_call) // ftrace_graph_caller();
SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL) // ftrace_graph_caller();
nop // If enabled, this will be replaced
// "b ftrace_graph_caller"
#endif
@ -218,7 +218,7 @@ ENDPROC(ftrace_graph_caller)
* - tracer function to probe instrumented function's entry,
* - ftrace_graph_caller to set up an exit hook
*/
ENTRY(_mcount)
SYM_FUNC_START(_mcount)
mcount_enter
ldr_l x2, ftrace_trace_function
@ -242,7 +242,7 @@ skip_ftrace_call: // }
b.ne ftrace_graph_caller // ftrace_graph_caller();
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
mcount_exit
ENDPROC(_mcount)
SYM_FUNC_END(_mcount)
EXPORT_SYMBOL(_mcount)
NOKPROBE(_mcount)
@ -253,9 +253,9 @@ NOKPROBE(_mcount)
* and later on, NOP to branch to ftrace_caller() when enabled or branch to
* NOP when disabled per-function base.
*/
ENTRY(_mcount)
SYM_FUNC_START(_mcount)
ret
ENDPROC(_mcount)
SYM_FUNC_END(_mcount)
EXPORT_SYMBOL(_mcount)
NOKPROBE(_mcount)
@ -268,24 +268,24 @@ NOKPROBE(_mcount)
* - tracer function to probe instrumented function's entry,
* - ftrace_graph_caller to set up an exit hook
*/
ENTRY(ftrace_caller)
SYM_FUNC_START(ftrace_caller)
mcount_enter
mcount_get_pc0 x0 // function's pc
mcount_get_lr x1 // function's lr
GLOBAL(ftrace_call) // tracer(pc, lr);
SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL) // tracer(pc, lr);
nop // This will be replaced with "bl xxx"
// where xxx can be any kind of tracer.
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
GLOBAL(ftrace_graph_call) // ftrace_graph_caller();
SYM_INNER_LABEL(ftrace_graph_call) // ftrace_graph_caller();
nop // If enabled, this will be replaced
// "b ftrace_graph_caller"
#endif
mcount_exit
ENDPROC(ftrace_caller)
SYM_FUNC_END(ftrace_caller)
#endif /* CONFIG_DYNAMIC_FTRACE */
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@ -298,20 +298,20 @@ ENDPROC(ftrace_caller)
* the call stack in order to intercept instrumented function's return path
* and run return_to_handler() later on its exit.
*/
ENTRY(ftrace_graph_caller)
SYM_FUNC_START(ftrace_graph_caller)
mcount_get_pc x0 // function's pc
mcount_get_lr_addr x1 // pointer to function's saved lr
mcount_get_parent_fp x2 // parent's fp
bl prepare_ftrace_return // prepare_ftrace_return(pc, &lr, fp)
mcount_exit
ENDPROC(ftrace_graph_caller)
SYM_FUNC_END(ftrace_graph_caller)
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */
ENTRY(ftrace_stub)
SYM_FUNC_START(ftrace_stub)
ret
ENDPROC(ftrace_stub)
SYM_FUNC_END(ftrace_stub)
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
/*