Solaris Dynamic Tracing Guide
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Document Information

Preface

1.  Introduction

2.  Types, Operators, and Expressions

3.  Variables

4.  D Program Structure

5.  Pointers and Arrays

6.  Strings

7.  Structs and Unions

8.  Type and Constant Definitions

9.  Aggregations

10.  Actions and Subroutines

11.  Buffers and Buffering

12.  Output Formatting

13.  Speculative Tracing

14.  dtrace(1M) Utility

15.  Scripting

16.  Options and Tunables

17.  dtrace Provider

18.  lockstat Provider

19.  profile Provider

20.  fbt Provider

21.  syscall Provider

22.  sdt Provider

23.  sysinfo Provider

24.  vminfo Provider

25.  proc Provider

26.  sched Provider

27.  io Provider

28.  mib Provider

29.  fpuinfo Provider

30.  pid Provider

31.  plockstat Provider

32.  fasttrap Provider

33.  User Process Tracing

copyin() and copyinstr() Subroutines

Eliminating dtrace(1M) Interference

syscall Provider

ustack() Action

uregs[] Array

pid Provider

34.  Statically Defined Tracing for User Applications

35.  Security

36.  Anonymous Tracing

37.  Postmortem Tracing

38.  Performance Considerations

39.  Stability

40.  Translators

41.  Versioning

Glossary

Index

uregs[] Array

The uregs[] array enables you to access individual user registers. The following tables list indices into the uregs[] array corresponding to each supported Solaris system architecture.

Table 33-1 SPARC uregs[] Constants

Constant

Register

R_G0..R_G7

%g0..%g7 global registers

R_O0..R_O7

%o0..%o7 out registers

R_L0..R_L7

%l0..%l7 local registers

R_I0..R_I7

%i0..%i7 in registers

R_CCR

%ccr condition code register

R_PC

%pc program counter

R_NPC

%npc next program counter

R_Y

%y multiply/divide register

R_ASI

%asi address space identifier register

R_FPRS

%fprs floating-point registers state
Table 33-2 x86 uregs[] Constants

Constant

Register

R_CS

%cs

R_GS

%gs

R_ES

%es

R_DS

%ds

R_EDI

%edi

R_ESI

%esi

R_EBP

%ebp

R_EAX

%eax

R_ESP

%esp

R_EAX

%eax

R_EBX

%ebx

R_ECX

%ecx

R_EDX

%edx

R_TRAPNO

%trapno

R_ERR

%err

R_EIP

%eip

R_CS

%cs

R_ERR

%err

R_EFL

%efl

R_UESP

%uesp

R_SS

%ss

On AMD64 platforms, the uregs array has the same content as it does on x86 platforms, plus the additional elements listed in the following table:

Table 33-3 amd64 uregs[] Constants

Constant

Register

R_RSP

%rsp

R_RFL

%rfl

R_RIP

%rip

R_RAX

%rax

R_RCX

%rcx

R_RDX

%rdx

R_RBX

%rbx

R_RBP

%rbp

R_RSI

%rsi

R_RDI

%rdi

R_R8

%r8

R_R9

%r9

R_R10

%r10

R_R11

%r11

R_R12

%r12

R_R13

%r13

R_R14

%r14

R_R15

%r15

The aliases listed in the following table can be used on all platforms:

Table 33-4 Common uregs[] Constants

Constant

Register

R_PC

program counter register

R_SP

stack pointer register

R_R0

first return code

R_R1

second return code
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