diff options
| author | jkoshy <jkoshy@FreeBSD.org> | 2007-12-07 08:20:17 +0000 |
|---|---|---|
| committer | jkoshy <jkoshy@FreeBSD.org> | 2007-12-07 08:20:17 +0000 |
| commit | 72c27d71d82569aec187c30f6ff208631abc02f4 (patch) | |
| tree | fa5327bc9f466a5a1b4e68e43a72d22b1b35f5e5 /sys/amd64/include/pmc_mdep.h | |
| parent | 12b5f9c8c99a01b1d40e88aaa1a58ce757e68d5e (diff) | |
| download | FreeBSD-src-72c27d71d82569aec187c30f6ff208631abc02f4.zip FreeBSD-src-72c27d71d82569aec187c30f6ff208631abc02f4.tar.gz | |
Kernel and hwpmc(4) support for callchain capture.
Sponsored by: FreeBSD Foundation and Google Inc.
Diffstat (limited to 'sys/amd64/include/pmc_mdep.h')
| -rw-r--r-- | sys/amd64/include/pmc_mdep.h | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/sys/amd64/include/pmc_mdep.h b/sys/amd64/include/pmc_mdep.h index 4a67658..e391c54 100644 --- a/sys/amd64/include/pmc_mdep.h +++ b/sys/amd64/include/pmc_mdep.h @@ -1,7 +1,11 @@ /*- - * Copyright (c) 2003-2005 Joseph Koshy + * Copyright (c) 2003-2007 Joseph Koshy + * Copyright (c) 2007 The FreeBSD Foundation * All rights reserved. * + * Portions of this software were developed by A. Joseph Koshy under + * sponsorship from the FreeBSD Foundation and Google, Inc. + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -53,10 +57,34 @@ union pmc_md_pmc { struct pmc; +#define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_rip) +#define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_rbp) +#define PMC_TRAPFRAME_TO_SP(TF) ((TF)->tf_rsp) + +#define PMC_AT_FUNCTION_PROLOGUE_PUSH_BP(I) \ + (((I) & 0xffffffff) == 0xe5894855) /* pushq %rbp; movq %rsp,%rbp */ +#define PMC_AT_FUNCTION_PROLOGUE_MOV_SP_BP(I) \ + (((I) & 0x00ffffff) == 0x00e58948) /* movq %rsp,%rbp */ +#define PMC_AT_FUNCTION_EPILOGUE_RET(I) \ + (((I) & 0xFF) == 0xC3) /* ret */ + +#define PMC_IN_TRAP_HANDLER(PC) \ + ((PC) >= (uintptr_t) start_exceptions && \ + (PC) < (uintptr_t) end_exceptions) + +#define PMC_IN_KERNEL_STACK(S,START,END) \ + ((S) >= (START) && (S) < (END)) +#define PMC_IN_KERNEL(va) (((va) >= DMAP_MIN_ADDRESS && \ + (va) < DMAP_MAX_ADDRESS) || ((va) >= KERNBASE && \ + (va) < VM_MAX_KERNEL_ADDRESS)) + +#define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS) + /* * Prototypes */ +void start_exceptions(void), end_exceptions(void); void pmc_x86_lapic_enable_pmc_interrupt(void); #endif |
