| #; $ as -o test.o gas-cfi-test.s && gcc -nostdlib -o test test.o |
| |
| .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 |
| suba.w #0x1234,%sp |
| .cfi_adjust_cfa_offset 0x1234 |
| |
| #; dummy body |
| moveq.l #1,%d0 |
| |
| #; release space of local vars and return |
| adda.w #0x1234,%sp |
| .cfi_adjust_cfa_offset -0x1234 |
| rts |
| .cfi_endproc |
| |
| #; func_prologue |
| #; - functions that begins with standard |
| #; prologue: "link %a6,#0" |
| |
| .type func_prologue,@function |
| func_prologue: |
| .cfi_startproc |
| |
| #; prologue, CFI is valid after |
| #; each instruction. |
| link %a6,#0 |
| .cfi_def_cfa_offset 8 |
| .cfi_offset a6,-8 |
| .cfi_def_cfa_register a6 |
| |
| #; function body |
| jbsr func_locvars |
| addq.l #3, %d0 |
| |
| #; epilogue with valid CFI |
| #; (we're better than gcc :-) |
| unlk %a6 |
| .cfi_def_cfa_register sp |
| rts |
| .cfi_endproc |
| |
| #; main |
| #; - typical function |
| .type main,@function |
| main: |
| .cfi_startproc |
| |
| #; only function body that doesn't |
| #; touch the stack at all. |
| jbsr func_prologue |
| |
| #; return |
| rts |
| .cfi_endproc |
