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| author | Necip Fazil Yildiran <necip@google.com> | 2023-08-21 21:57:07 +0000 |
|---|---|---|
| committer | Aleksandr Nogikh <nogikh@google.com> | 2023-08-22 12:20:36 +0000 |
| commit | b81ca3f66f8d2d8b397c3c1dc5f14e77c2936b1e (patch) | |
| tree | b1fa304cf31d167f2cc6dc35df5a8a949869484a | |
| parent | 96546aceffcf9f774c2f704a3f8348930a66b4cb (diff) | |
tools/syz-execprog: create coverage file per program run
When coverfile option is used with multiple program inputs (e.g., with
a corpus input), syz-execprog overwrites the output coverage files with
each program run.
Create coverage file per program run instead, which would let save
the coverage information for all inputs.
| -rw-r--r-- | tools/syz-execprog/execprog.go | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/syz-execprog/execprog.go b/tools/syz-execprog/execprog.go index ec6d59e1e..70d0eee81 100644 --- a/tools/syz-execprog/execprog.go +++ b/tools/syz-execprog/execprog.go @@ -153,11 +153,11 @@ func (ctx *Context) run(pid int) { return } entry := ctx.progs[idx%len(ctx.progs)] - ctx.execute(pid, env, entry) + ctx.execute(pid, env, entry, idx) } } -func (ctx *Context) execute(pid int, env *ipc.Env, p *prog.Prog) { +func (ctx *Context) execute(pid int, env *ipc.Env, p *prog.Prog, progIndex int) { // Limit concurrency window. ticket := ctx.gate.Enter() defer ctx.gate.Leave(ticket) @@ -187,7 +187,8 @@ func (ctx *Context) execute(pid int, env *ipc.Env, p *prog.Prog) { ctx.printHints(p, info) } if *flagCoverFile != "" { - ctx.dumpCoverage(*flagCoverFile, info) + covFile := fmt.Sprintf("%s_prog%d", *flagCoverFile, progIndex) + ctx.dumpCoverage(covFile, info) } } else { log.Logf(1, "RESULT: no calls executed") |