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- / C library -- execv
-
- / execv(file, argv);
- /
- / where argv is a vector argv[0] ... argv[x], 0
- / last vector element must be 0
- /
- / The _exectrap flags is used by the debugger and causes
- / a trace trap on the first instruction of the executed instruction
- / to give a chance to set breakpoints.
-
- .globl _execv, cerror
- .comm __exectrap,2
- rtt = 6
-
- _execv:
- mov r5,-(sp)
- mov sp,r5
- mov 4(r5),0f
- mov 6(r5),0f+2
- tst __exectrap
- beq 1f
- mov $170020,-(sp) / t-bit
- mov $1f,-(sp)
- rtt
- 1:
- sys 0; 9f
- jmp cerror
- .data
- 9:
- sys exec; 0:..; ..
-