memzap

replay memory writes
git clone git://git.2f30.org/memzap.git
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commit debdc5bf90b0a8baee544b8899d38af078d90787
parent 2b913b2400645b5aab68f127cd84f4ea1e16774b
Author: sin <sin@2f30.org>
Date:   Fri Mar  1 15:07:49 +0000

memzap: Simplify waiting for the child

Diffstat:
memzap.c | 8+++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/memzap.c b/memzap.c @@ -40,7 +40,6 @@ main(int argc, char *argv[]) execl(argv[1], argv[1], (char *)NULL); _Exit(1); default: - waitpid(pid, &stat, WSTOPPED); break; } @@ -54,11 +53,10 @@ main(int argc, char *argv[]) printf("Single stepping child with pid %jd\n", (intmax_t)pid); - single_step(pid); - waitpid(pid, &stat, WSTOPPED); - + wait(&stat); if (!WIFSTOPPED(stat)) goto out_mmap; + single_step(pid); do { readmem(pid, buf, addr, len); @@ -71,7 +69,7 @@ main(int argc, char *argv[]) errx(1, "Failed to build memory tree\n"); single_step(pid); - waitpid(pid, &stat, WSTOPPED); + wait(&stat); if (!WIFSTOPPED(stat)) { free_mem_region(mr_old);