uregs[] Array - Solaris Dynamic Tracing Guide

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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