projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_FTRACE_H |
| 2 | #define _ASM_X86_FTRACE_H | |
| 395a59d0 | 3 | |
| d680fe44 CG |
4 | #ifdef __ASSEMBLY__ |
| 5 | ||
| 08f6fba5 SR |
6 | /* skip is set if the stack was already partially adjusted */ |
| 7 | .macro MCOUNT_SAVE_FRAME skip=0 | |
| 8 | /* | |
| 9 | * We add enough stack to save all regs. | |
| 10 | */ | |
| 11 | subq $(SS+8-\skip), %rsp | |
| 12 | movq %rax, RAX(%rsp) | |
| 13 | movq %rcx, RCX(%rsp) | |
| 14 | movq %rdx, RDX(%rsp) | |
| 15 | movq %rsi, RSI(%rsp) | |
| 16 | movq %rdi, RDI(%rsp) | |
| 17 | movq %r8, R8(%rsp) | |
| 18 | movq %r9, R9(%rsp) | |
| 19 | /* Move RIP to its proper location */ | |
| 20 | movq SS+8(%rsp), %rdx | |
| 21 | movq %rdx, RIP(%rsp) | |
| d680fe44 CG |
22 | .endm |
| 23 | ||
| 08f6fba5 SR |
24 | .macro MCOUNT_RESTORE_FRAME skip=0 |
| 25 | movq R9(%rsp), %r9 | |
| 26 | movq R8(%rsp), %r8 | |
| 27 | movq RDI(%rsp), %rdi | |
| 28 | movq RSI(%rsp), %rsi | |
| 29 | movq RDX(%rsp), %rdx | |
| 30 | movq RCX(%rsp), %rcx | |
| 31 | movq RAX(%rsp), %rax | |
| 32 | addq $(SS+8-\skip), %rsp | |
| d680fe44 CG |
33 | .endm |
| 34 | ||
| 35 | #endif | |
| 36 | ||
| 606576ce | 37 | #ifdef CONFIG_FUNCTION_TRACER |
| d57c5d51 SR |
38 | #ifdef CC_USING_FENTRY |
| 39 | # define MCOUNT_ADDR ((long)(__fentry__)) | |
| 40 | #else | |
| 41 | # define MCOUNT_ADDR ((long)(mcount)) | |
| 42 | #endif | |
| 395a59d0 AS |
43 | #define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */ |
| 44 | ||
| 28fb5dfa | 45 | #ifdef CONFIG_DYNAMIC_FTRACE |
| 2f5f6ad9 | 46 | #define ARCH_SUPPORTS_FTRACE_OPS 1 |
| 08f6fba5 | 47 | #endif |
| 2f5f6ad9 | 48 | |
| 395a59d0 AS |
49 | #ifndef __ASSEMBLY__ |
| 50 | extern void mcount(void); | |
| a192cd04 | 51 | extern atomic_t modifying_ftrace_code; |
| d57c5d51 | 52 | extern void __fentry__(void); |
| 68bf21aa SR |
53 | |
| 54 | static inline unsigned long ftrace_call_adjust(unsigned long addr) | |
| 55 | { | |
| 56 | /* | |
| 521ccb5c MS |
57 | * addr is the address of the mcount call instruction. |
| 58 | * recordmcount does the necessary offset calculation. | |
| 68bf21aa | 59 | */ |
| 521ccb5c | 60 | return addr; |
| 68bf21aa | 61 | } |
| 31e88909 SR |
62 | |
| 63 | #ifdef CONFIG_DYNAMIC_FTRACE | |
| 64 | ||
| 65 | struct dyn_arch_ftrace { | |
| 66 | /* No extra data needed for x86 */ | |
| 67 | }; | |
| 68 | ||
| 08d636b6 SR |
69 | int ftrace_int3_handler(struct pt_regs *regs); |
| 70 | ||
| 1026ff9b SRRH |
71 | #define FTRACE_GRAPH_TRAMP_ADDR FTRACE_GRAPH_ADDR |
| 72 | ||
| 31e88909 | 73 | #endif /* CONFIG_DYNAMIC_FTRACE */ |
| a26a2a27 | 74 | #endif /* __ASSEMBLY__ */ |
| 606576ce | 75 | #endif /* CONFIG_FUNCTION_TRACER */ |
| 395a59d0 | 76 | |
| f431b634 SR |
77 | |
| 78 | #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS) | |
| 79 | ||
| 80 | #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION) | |
| 81 | #include <asm/compat.h> | |
| 82 | ||
| 83 | /* | |
| 84 | * Because ia32 syscalls do not map to x86_64 syscall numbers | |
| 85 | * this screws up the trace output when tracing a ia32 task. | |
| 86 | * Instead of reporting bogus syscalls, just do not trace them. | |
| 87 | * | |
| 88 | * If the user realy wants these, then they should use the | |
| 89 | * raw syscall tracepoints with filtering. | |
| 90 | */ | |
| 91 | #define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1 | |
| 92 | static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs) | |
| 93 | { | |
| 94 | if (is_compat_task()) | |
| 95 | return true; | |
| 96 | return false; | |
| 97 | } | |
| 98 | #endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */ | |
| 99 | #endif /* !__ASSEMBLY__ && !COMPILE_OFFSETS */ | |
| 100 | ||
| 1965aae3 | 101 | #endif /* _ASM_X86_FTRACE_H */ |