code wiki / _hdl_build / _exec_probe.nx
_exec_probe.nx source
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1// _exec_probe.nx -- diagnostic: spawn /tmp/nx_tictactoe_test.sov.elf the exact
2// way nx_sov_build_run's sbr_run does (sys_fork + sys_execve + sys_wait4, same
3// minimal envp) and report the RAW wait status + decoded exit code. Isolates
4// whether "child of a NishiLang fork/execve parent" changes the test verdict
5// (bash-parent exit=0 vs runner-parent exit=8 mystery, 2026-06-09).
6import "nx_syscalls.nx"
7
8func ep_puts(s: *u8) -> i64 { var n: i64 = 0; while s[n] != (0 as u8) { n = n + 1 } sys_write(1, s, n); return 0 }
9func ep_putn(v: i64) -> i64 { let bb: *u8 = sys_mmap(28); var m: i64=v; if m<0 {m=0-m;sys_write(1,"-" as *u8,1)}; let t: *u8 = sys_mmap(28); var k: i64=0; if m==0 {t[0]=48;k=1}; while m>0 {t[k]=48+(m%10); m=m/10; k=k+1}; var i: i64=0; while i<k {bb[i]=t[k-1-i]; i=i+1}; sys_write(1, bb, k); return 0 }
10
11func ep_spawn(path: *u8) -> i64 {
12 let argv: *i64 = sys_mmap(8*4) as *i64
13 argv[0] = path as i64; argv[1] = 0
14 let envp: *i64 = sys_mmap(8*4) as *i64
15 envp[0] = "PATH=/usr/bin:/bin" as *u8 as i64; envp[1] = 0
16 let pid: i64 = sys_fork()
17 if pid == 0 {
18 sys_execve(path, argv, envp)
19 sys_exit(127)
20 }
21 let st: *i64 = sys_mmap(16) as *i64
22 sys_wait4(pid, st, 0)
23 ep_puts(path); ep_puts(": raw-status=" as *u8); ep_putn(st[0])
24 ep_puts(" decoded-exit=" as *u8); ep_putn((st[0] >> 8) & 0xff)
25 ep_puts(" low-byte=" as *u8); ep_putn(st[0] & 0x7f)
26 ep_puts("\n" as *u8)
27 return 0
28}
29
30func main() -> i64 {
31 ep_spawn("/tmp/ttt_fixed.sov.elf" as *u8)
32 ep_spawn("/tmp/chk_fixed.sov.elf" as *u8)
33 ep_spawn("/tmp/rcv_fixed.sov.elf" as *u8)
34 ep_spawn("/tmp/fab_fixed.sov.elf" as *u8)
35 ep_spawn("/tmp/gec_fixed.sov.elf" as *u8)
36 ep_spawn("/tmp/grc_fixed.sov.elf" as *u8)
37 return 0
38}
39
40func _old_main() -> i64 {
41 let path: *u8 = "/tmp/nx_tictactoe_test.sov.elf" as *u8
42 let argv: *i64 = sys_mmap(8*4) as *i64
43 argv[0] = path as i64; argv[1] = 0
44 let envp: *i64 = sys_mmap(8*4) as *i64
45 envp[0] = "PATH=/usr/bin:/bin" as *u8 as i64; envp[1] = 0
46
47 let pid: i64 = sys_fork()
48 if pid == 0 {
49 sys_execve(path, argv, envp)
50 sys_exit(127)
51 }
52 let st: *i64 = sys_mmap(16) as *i64
53 sys_wait4(pid, st, 0)
54 ep_puts("raw-status=" as *u8); ep_putn(st[0])
55 ep_puts(" decoded-exit=" as *u8); ep_putn((st[0] >> 8) & 0xff)
56 ep_puts(" low-byte(signal-if-nonzero)=" as *u8); ep_putn(st[0] & 0x7f)
57 ep_puts("\n" as *u8)
58 return 0
59}