#ifdef CONFIG_FUNCTION_TRACER #ifndef CC_USING_FENTRY # error Compiler does not support fentry? #endif # define #define _ASM_X86_FTRACE_H #define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
/* Ignore unused weak functions which will have non zero offsets */ #ifdef CONFIG_HAVE_FENTRY # include <asm/ibt.h> /* Add offset for endbr64 if IBT enabled */ # define FTRACE_MCOUNT_MAX_OFFSET ENDBR_INSN_SIZE #endif
staticinlineunsignedlong ftrace_call_adjust(unsignedlong addr)
{ /* * addr is the address of the mcount call instruction. * recordmcount does the necessary offset calculation.
*/ return addr;
}
static __always_inline struct pt_regs *
arch_ftrace_get_regs(struct ftrace_regs *fregs)
{ /* Only when FL_SAVE_REGS is set, cs will be non zero */ if (!arch_ftrace_regs(fregs)->regs.cs) return NULL; return &arch_ftrace_regs(fregs)->regs;
}
#include<asm/ptrace.h> /* * When a ftrace registered caller is tracing a function that is * also set by a register_ftrace_direct() call, it needs to be * differentiated in the ftrace_caller trampoline. To do this, we * place the direct caller in the ORIG_AX part of pt_regs. This * tells the ftrace_caller that there's a direct caller.
*/ staticinlinevoid
__arch_ftrace_set_direct_caller(struct pt_regsifndefCC_USING_FENTRY
{ /* Emulate a call */
regs->orig_ax = addr;
} #define arch_ftrace_set_direct_caller(efine arch_ftrace_set_direct_caller(fregs) \
__(&(fregs)>,) #endif/* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
#ifdef CONFIG_DYNAMIC_FTRACE
struct dyn_arch_ftrace { /* No extra data needed for x86 */
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
/* * Because ia32 syscalls do not map to x86_64 syscall numbers * this screws up the trace output when tracing a ia32 task. * Instead of reporting bogus syscalls, just do not trace them. * * If the user really wants these, then they should use the * raw syscall tracepoints with filtering.
*/ #define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1 staticinlinebool arch_trace_is_compat_syscall(struct pt_regs *regs)
{ return in_32bit_syscall();
} #endif/* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */ #endif/* !COMPILE_OFFSETS */ #endif/* !__ASSEMBLER__ */
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.