From: Aaron Wu Aaron.wu@analog.com
Signed-off-by: Aaron Wu Aaron.wu@analog.com
Add no-mmu support for alsa-utils mainly for Blackfin --- alsactl/init_utils_run.c | 4 ++++ alsaloop/alsaloop.c | 8 ++++++++ configure.in | 1 + 3 files changed, 13 insertions(+)
diff --git a/alsactl/init_utils_run.c b/alsactl/init_utils_run.c index dde490b..ac074e6 100644 --- a/alsactl/init_utils_run.c +++ b/alsactl/init_utils_run.c @@ -89,7 +89,11 @@ int run_program0(struct space *space, argv[0] = program; }
+ #ifdef HAVE_FORK pid = fork(); + #else + pid = vfork(); + #endif switch(pid) { case 0: /* child closes parent ends of pipes */ diff --git a/alsaloop/alsaloop.c b/alsaloop/alsaloop.c index 3b20682..1b1e540 100644 --- a/alsaloop/alsaloop.c +++ b/alsaloop/alsaloop.c @@ -861,14 +861,22 @@ int main(int argc, char *argv[]) logit(LOG_CRIT, "daemon() failed: %s\n", strerror(errno)); exit(EXIT_FAILURE); } + #ifdef HAVE_FORK i = fork(); + #else + i = vfork(); + #endif if (i < 0) { logit(LOG_CRIT, "fork() failed: %s\n", strerror(errno)); exit(EXIT_FAILURE); } if (i > 0) { /* wait(&i); */ + #ifdef HAVE_FORK exit(EXIT_SUCCESS); + #else + _exit(EXIT_SUCCESS); + #endif } }
diff --git a/configure.in b/configure.in index 60da1fa..f289f9b 100644 --- a/configure.in +++ b/configure.in @@ -25,6 +25,7 @@ then AC_MSG_RESULT($CC) fi
+AC_CHECK_FUNC([fork]) AC_PROG_CC dnl AC_PROG_CXX AC_PROG_INSTALL