diff options
| -rw-r--r-- | NEWS | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -112,6 +112,18 @@ Deprecated and removed features, and other changes affecting compatibility: captured in a dlerror message. In general, this is unsafe because resetting the stack in an arbitrary function call is not possible. +* For MIPS hard-float ABIs, the GNU C Library will be configured to need an + executable stack unless explicitly configured at build time to require + minimum kernel version 4.8 or newer. This is because executing + floating-point branches on a non-executable stack on Linux kernels prior to + 4.8 can lead to application crashes for some MIPS configurations. While + currently PT_GNU_STACK is not widely used on MIPS, future releases of GCC are + expected to enable non-executable stack by default with PT_GNU_STACK by + default and is thus likely to trigger a crash on older kernels. + + The GNU C Library can be built with --enable-kernel=4.8.0 in order to keep a + non-executable stack while dropping support for older kernels. + Changes to build and runtime requirements: * It is no longer necessary to have recent Linux kernel headers to build |