LCOV - code coverage report
Current view: top level - arch/arm/include/asm - ftrace.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 1 0.0 %
Date: 2014-02-18 Functions: 0 0 -
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : #ifndef _ASM_ARM_FTRACE
       2                 :            : #define _ASM_ARM_FTRACE
       3                 :            : 
       4                 :            : #ifdef CONFIG_FUNCTION_TRACER
       5                 :            : #define MCOUNT_ADDR             ((unsigned long)(__gnu_mcount_nc))
       6                 :            : #define MCOUNT_INSN_SIZE        4 /* sizeof mcount call */
       7                 :            : 
       8                 :            : #ifndef __ASSEMBLY__
       9                 :            : extern void mcount(void);
      10                 :            : extern void __gnu_mcount_nc(void);
      11                 :            : 
      12                 :            : #ifdef CONFIG_DYNAMIC_FTRACE
      13                 :            : struct dyn_arch_ftrace {
      14                 :            : #ifdef CONFIG_OLD_MCOUNT
      15                 :            :         bool    old_mcount;
      16                 :            : #endif
      17                 :            : };
      18                 :            : 
      19                 :            : static inline unsigned long ftrace_call_adjust(unsigned long addr)
      20                 :            : {
      21                 :            :         /* With Thumb-2, the recorded addresses have the lsb set */
      22                 :          0 :         return addr & ~1;
      23                 :            : }
      24                 :            : 
      25                 :            : extern void ftrace_caller_old(void);
      26                 :            : extern void ftrace_call_old(void);
      27                 :            : #endif
      28                 :            : 
      29                 :            : #endif
      30                 :            : 
      31                 :            : #endif
      32                 :            : 
      33                 :            : #ifndef __ASSEMBLY__
      34                 :            : 
      35                 :            : #if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
      36                 :            : /*
      37                 :            :  * return_address uses walk_stackframe to do it's work.  If both
      38                 :            :  * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
      39                 :            :  * information.  For this to work in the function tracer many functions would
      40                 :            :  * have to be marked with __notrace.  So for now just depend on
      41                 :            :  * !CONFIG_ARM_UNWIND.
      42                 :            :  */
      43                 :            : 
      44                 :            : void *return_address(unsigned int);
      45                 :            : 
      46                 :            : #else
      47                 :            : 
      48                 :            : extern inline void *return_address(unsigned int level)
      49                 :            : {
      50                 :            :         return NULL;
      51                 :            : }
      52                 :            : 
      53                 :            : #endif
      54                 :            : 
      55                 :            : #define HAVE_ARCH_CALLER_ADDR
      56                 :            : 
      57                 :            : #define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
      58                 :            : #define CALLER_ADDR1 ((unsigned long)return_address(1))
      59                 :            : #define CALLER_ADDR2 ((unsigned long)return_address(2))
      60                 :            : #define CALLER_ADDR3 ((unsigned long)return_address(3))
      61                 :            : #define CALLER_ADDR4 ((unsigned long)return_address(4))
      62                 :            : #define CALLER_ADDR5 ((unsigned long)return_address(5))
      63                 :            : #define CALLER_ADDR6 ((unsigned long)return_address(6))
      64                 :            : 
      65                 :            : #endif /* ifndef __ASSEMBLY__ */
      66                 :            : 
      67                 :            : #endif /* _ASM_ARM_FTRACE */

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