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Merge "crasher: add option to wait for input before crashing."

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Treehugger Robot 2016-11-12 01:04:41 +00:00 • committed by Gerrit Code Review
commit 84db3f19bc
1 changed files with 7 additions and 1 deletions
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8
debuggerd/crasher.cpp
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@ -160,7 +160,11 @@ static int do_action(const char* arg)
{ {
fprintf(stderr, "%s: init pid=%d tid=%d\n", __progname, getpid(), gettid()); fprintf(stderr, "%s: init pid=%d tid=%d\n", __progname, getpid(), gettid());
if (!strncmp(arg, "exhaustfd-", strlen("exhaustfd-"))) { if (!strncmp(arg, "wait-", strlen("wait-"))) {
char buf[1];
TEMP_FAILURE_RETRY(read(STDIN_FILENO, buf, sizeof(buf)));
return do_action(arg + strlen("wait-"));
} else if (!strncmp(arg, "exhaustfd-", strlen("exhaustfd-"))) {
errno = 0; errno = 0;
while (errno != EMFILE) { while (errno != EMFILE) {
open("/dev/null", O_RDONLY); open("/dev/null", O_RDONLY);
@ -235,6 +239,8 @@ static int do_action(const char* arg)
fprintf(stderr, "on the process' main thread.\n"); fprintf(stderr, "on the process' main thread.\n");
fprintf(stderr, "prefix any of the above with 'exhaustfd-' to exhaust\n"); fprintf(stderr, "prefix any of the above with 'exhaustfd-' to exhaust\n");
fprintf(stderr, "all available file descriptors before crashing.\n"); fprintf(stderr, "all available file descriptors before crashing.\n");
fprintf(stderr, "prefix any of the above with 'wait-' to wait until input is received on stdin\n");
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }