projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 39bec121 TW |
1 | * local labels\r |
| 2 | * two forms, $[0-9] and label? are allowed \r | |
| 3 | * Local labels are undefined/reset in one of four ways:\r | |
| 4 | * .newblock\r | |
| 5 | * changing sections \r | |
| 6 | * entering an include file\r | |
| 7 | * leaving an include file \r | |
| 8 | .global addra, addrb, addrc\r | |
| 9 | label1: ld addra,a\r | |
| 10 | sub addrb,a\r | |
| 11 | bc $1, alt ; generates frag! \r | |
| 12 | ld addrb, a\r | |
| 13 | b $2\r | |
| 14 | $1: ld addra,a \r | |
| 15 | $2 add addrc,a\r | |
| 16 | .newblock\r | |
| 17 | bc $1,alt\r | |
| 18 | stl a, addrc\r | |
| 19 | $1 nop \r | |
| 20 | \r | |
| 21 | * #1, First definition of local label 'lab' \r | |
| 22 | nop\r | |
| 23 | lab? add #1,a ; reports as line 17?\r | |
| 24 | b lab? \r | |
| 25 | * #2, Included file also defines local label 'lab' \r | |
| 26 | .copy labels.inc\r | |
| 27 | * #3, Next definition; exit from .copy clears all locals \r | |
| 28 | lab? add #3,a ; reports as line 22?\r | |
| 29 | b lab?\r | |
| 30 | * #4, Next definition is within macro; supersedes previous definition while\r | |
| 31 | * within the macro \r | |
| 32 | mac .macro\r | |
| 33 | lab? add #4,a ; line 31?\r | |
| 34 | b lab?\r | |
| 35 | .endm\r | |
| 36 | * Macro invocation\r | |
| 37 | mac\r | |
| 38 | * This reference should resolve to definition #3\r | |
| 39 | after_macro: \r | |
| 40 | b lab?\r | |
| 41 | * Section change clears all definitions\r | |
| 42 | .sect new_section\r | |
| 43 | nop\r | |
| 44 | lab? add #5,a\r | |
| 45 | nop\r | |
| 46 | nop\r | |
| 47 | b lab?\r | |
| 48 | * Newblock directive clears local labels\r | |
| 49 | .newblock\r | |
| 50 | lab? add #6,a\r | |
| 51 | nop\r | |
| 52 | nop\r | |
| 53 | b lab? \r | |
| 54 | .end\r | |
| 55 | \r |