From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/split-2.c | 55 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/split-2.c (limited to 'gcc/testsuite/gcc.dg/split-2.c') diff --git a/gcc/testsuite/gcc.dg/split-2.c b/gcc/testsuite/gcc.dg/split-2.c new file mode 100644 index 000000000..208169aa0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/split-2.c @@ -0,0 +1,55 @@ +/* { dg-do run } */ +/* { dg-require-effective-target split_stack } */ +/* { dg-require-effective-target pthread_h } */ +/* { dg-options "-pthread -fsplit-stack" } */ + +#include +#include + +/* Use a noinline function to ensure that the buffer is not removed + from the stack. */ +static void use_buffer (char *buf) __attribute__ ((noinline)); +static void +use_buffer (char *buf) +{ + buf[0] = '\0'; +} + +/* Each recursive call uses 10,000 bytes. We call it 1000 times, + using a total of 10,000,000 bytes. If -fsplit-stack is not + working, that will overflow our stack limit. */ + +static void +down (int i) +{ + char buf[10000]; + + if (i > 0) + { + use_buffer (buf); + down (i - 1); + } +} + +static void * +thread_routine (void *arg __attribute__ ((unused))) +{ + down (1000); + return NULL; +} + +int +main (void) +{ + int i; + pthread_t tid; + void *dummy; + + i = pthread_create (&tid, NULL, thread_routine, NULL); + if (i != 0) + abort (); + i = pthread_join (tid, &dummy); + if (i != 0) + abort (); + return 0; +} -- cgit v1.2.3