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Diffstat (limited to 'arch/x86/include/asm/ftrace.h')
-rw-r--r--arch/x86/include/asm/ftrace.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 09ad88572746..cc8f8fcf9b4a 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -46,7 +46,21 @@ int ftrace_int3_handler(struct pt_regs *regs);
#endif /* CONFIG_FUNCTION_TRACER */
-#if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
+#ifndef __ASSEMBLY__
+
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
+{
+ /*
+ * Compare the symbol name with the system call name. Skip the
+ * "__x64_sys", "__ia32_sys" or simple "sys" prefix.
+ */
+ return !strcmp(sym + 3, name + 3) ||
+ (!strncmp(sym, "__x64_", 6) && !strcmp(sym + 9, name + 3)) ||
+ (!strncmp(sym, "__ia32_", 7) && !strcmp(sym + 10, name + 3));
+}
+
+#ifndef COMPILE_OFFSETS
#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
#include <asm/compat.h>
@@ -67,6 +81,7 @@ static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
return false;
}
#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */
-#endif /* !__ASSEMBLY__ && !COMPILE_OFFSETS */
+#endif /* !COMPILE_OFFSETS */
+#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_FTRACE_H */