diff options
| author | davem <davem@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-04-17 22:01:21 +0000 |
|---|---|---|
| committer | davem <davem@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-04-17 22:01:21 +0000 |
| commit | 96e1a4c2e481e7f7868cc3e8e4769729bf99b7a4 (patch) | |
| tree | 6070b7e1958a3b47be4d8b147bcdb1497807a8f2 /boehm-gc/os_dep.c | |
| parent | 908c697e9e419d3f9d870eafcf400a7b9f927695 (diff) | |
| download | gcc-96e1a4c2e481e7f7868cc3e8e4769729bf99b7a4.tar.gz | |
2005-04-17 David S. Miller <davem@davemloft.net>
* include/private/gcconfig.h (sparc-linux): Use LINUX_STACKBOTTOM.
* os_dep.c (GC_linux_stack_base): Check for bug present in some
Sparc glibc variants where __libc_stack_end is erroneously set
to "1". Fallback to procfs code in that case.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@98303 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'boehm-gc/os_dep.c')
| -rw-r--r-- | boehm-gc/os_dep.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/boehm-gc/os_dep.c b/boehm-gc/os_dep.c index 21d05635ab8..30c2b8bc4ab 100644 --- a/boehm-gc/os_dep.c +++ b/boehm-gc/os_dep.c @@ -945,8 +945,17 @@ ptr_t GC_get_stack_base() } /* Otherwise it's not safe to add 16 bytes and we fall */ /* back to using /proc. */ # else +# ifdef SPARC + /* Older versions of glibc for 64-bit Sparc do not set + * this variable correctly, it gets set to either zero + * or one. + */ + if (__libc_stack_end != (ptr_t) (unsigned long)0x1) + return __libc_stack_end; +# else return __libc_stack_end; # endif +# endif } f = open("/proc/self/stat", O_RDONLY); if (f < 0 || STAT_READ(f, stat_buf, STAT_BUF_SIZE) < 2 * STAT_SKIP) { |