centos man page for function::register

FUNCTION::REGISTER(3stap)					 Context Functions					 FUNCTION::REGISTER(3stap)

NAME
       function::register - Return the signed value of the named CPU register

SYNOPSIS
	   register:long(name:string)

ARGUMENTS
       name
	   Name of the register to return

DESCRIPTION
       Return the value of the named CPU register, as it was saved when the current probe point was hit. If the register is 32 bits, it is
       sign-extended to 64 bits.

       For the i386 architecture, the following names are recognized. (name1/name2 indicates that name1 and name2 are alternative names for the
       same register.) eax/ax, ebp/bp, ebx/bx, ecx/cx, edi/di, edx/dx, eflags/flags, eip/ip, esi/si, esp/sp, orig_eax/orig_ax, xcs/cs, xds/ds,
       xes/es, xfs/fs, xss/ss.

       For the x86_64 architecture, the following names are recognized: 64-bit registers: r8, r9, r10, r11, r12, r13, r14, r15, rax/ax, rbp/bp,
       rbx/bx, rcx/cx, rdi/di, rdx/dx, rip/ip, rsi/si, rsp/sp; 32-bit registers: eax, ebp, ebx, ecx, edx, edi, edx, eip, esi, esp, flags/eflags,
       orig_eax; segment registers: xcs/cs, xss/ss.

       For powerpc, the following names are recognized: r0, r1, ... r31, nip, msr, orig_gpr3, ctr, link, xer, ccr, softe, trap, dar, dsisr,
       result.

       For s390x, the following names are recognized: r0, r1, ... r15, args, psw.mask, psw.addr, orig_gpr2, ilc, trap.

SystemTap Tapset Reference					     June 2014						 FUNCTION::REGISTER(3stap)