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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [gas/] [testsuite/] [gas/] [cfi/] [cfi-x86_64.s] - Rev 277
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.text #; func_locvars #; - function with a space on the stack #; allocated for local variables .type func_locvars,@function func_locvars: .cfi_startproc #; alocate space for local vars sub $0x1234,%rsp .cfi_adjust_cfa_offset 0x1234 #; dummy body movl $1,%eax #; release space of local vars and return add $0x1234,%rsp .cfi_adjust_cfa_offset -0x1234 ret .cfi_endproc #; func_prologue #; - functions that begins with standard #; prologue: "pushq %rbp; movq %rsp,%rbp" .type func_prologue,@function func_prologue: .cfi_startproc #; prologue, CFI is valid after #; each instruction. pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset %rbp, -16 movq %rsp, %rbp .cfi_def_cfa_register %rbp #; function body call func_locvars addl $3, %eax #; epilogue with valid CFI #; (we're better than gcc :-) leaveq .cfi_def_cfa %rsp, 8 ret .cfi_endproc #; func_otherreg #; - function that moves frame pointer to #; another register (r12) and then allocates #; a space for local variables .type func_otherreg,@function func_otherreg: .cfi_startproc #; save frame pointer to r8 movq %rsp,%r8 .cfi_def_cfa_register r8 #; alocate space for local vars #; (no .cfi_{def,adjust}_cfa_offset here, #; because CFA is computed from r8!) sub $100,%rsp #; function body call func_prologue addl $2, %eax #; restore frame pointer from r8 movq %r8,%rsp .cfi_def_cfa_register rsp ret .cfi_endproc #; main #; - typical function .type main,@function main: .cfi_startproc #; only function body that doesn't #; touch the stack at all. call func_otherreg #; return ret .cfi_endproc #; _start #; - standard entry point .type _start,@function .globl _start _start: .cfi_startproc call main movq %rax,%rdi movq $0x3c,%rax syscall hlt .cfi_endproc #; func_alldirectives #; - test for all .cfi directives. #; This function is never called and the CFI info doesn't make sense. .type func_alldirectives,@function func_alldirectives: .cfi_startproc simple .cfi_def_cfa rsp,8 nop .cfi_def_cfa_offset 16 nop .cfi_def_cfa_register r8 nop .cfi_adjust_cfa_offset 0x1234 nop .cfi_offset %rsi, 0x10 nop .cfi_register %r8, %r9 nop .cfi_remember_state nop .cfi_restore %rbp nop .cfi_undefined %rip nop .cfi_same_value rbx nop .cfi_restore_state ret .cfi_endproc #; func_all_registers #; - test for all .cfi register numbers. #; This function is never called and the CFI info doesn't make sense. .type func_all_registers,@function func_all_registers: .cfi_startproc simple .cfi_undefined rip ; nop .cfi_undefined rax ; nop .cfi_undefined rcx ; nop .cfi_undefined rdx ; nop .cfi_undefined rbx ; nop .cfi_undefined rsp ; nop .cfi_undefined rbp ; nop .cfi_undefined rsi ; nop .cfi_undefined rdi ; nop .cfi_undefined r8 ; nop .cfi_undefined r9 ; nop .cfi_undefined r10 ; nop .cfi_undefined r11 ; nop .cfi_undefined r12 ; nop .cfi_undefined r13 ; nop .cfi_undefined r14 ; nop .cfi_undefined r15 ; nop .cfi_undefined rflags ; nop .cfi_undefined es ; nop .cfi_undefined cs ; nop .cfi_undefined ds ; nop .cfi_undefined ss ; nop .cfi_undefined fs ; nop .cfi_undefined gs ; nop .cfi_undefined tr ; nop .cfi_undefined ldtr ; nop .cfi_undefined fs.base ; nop .cfi_undefined gs.base ; nop .cfi_undefined mxcsr ; nop .cfi_undefined xmm0 ; nop .cfi_undefined xmm1 ; nop .cfi_undefined xmm2 ; nop .cfi_undefined xmm3 ; nop .cfi_undefined xmm4 ; nop .cfi_undefined xmm5 ; nop .cfi_undefined xmm6 ; nop .cfi_undefined xmm7 ; nop .cfi_undefined xmm8 ; nop .cfi_undefined xmm9 ; nop .cfi_undefined xmm10 ; nop .cfi_undefined xmm11 ; nop .cfi_undefined xmm12 ; nop .cfi_undefined xmm13 ; nop .cfi_undefined xmm14 ; nop .cfi_undefined xmm15 ; nop .cfi_undefined fcw ; nop .cfi_undefined fsw ; nop .cfi_undefined st ; nop .cfi_undefined st(1) ; nop .cfi_undefined st(2) ; nop .cfi_undefined st(3) ; nop .cfi_undefined st(4) ; nop .cfi_undefined st(5) ; nop .cfi_undefined st(6) ; nop .cfi_undefined st(7) ; nop .cfi_undefined mm0 ; nop .cfi_undefined mm1 ; nop .cfi_undefined mm2 ; nop .cfi_undefined mm3 ; nop .cfi_undefined mm4 ; nop .cfi_undefined mm5 ; nop .cfi_undefined mm6 ; nop .cfi_undefined mm7 ; nop .cfi_endproc
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