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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-02-21 08:32:32 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-05-16 15:03:49 -0300
commitb46d250656794e63a2946c481fda29271342dd1a (patch)
treec2e056aa6ae5eb18f79a356b4bbd2f645446291c /NEWS
parent97a912f7a832a662960749948049e15f3aecb2a7 (diff)
downloadglibc-b46d250656794e63a2946c481fda29271342dd1a.tar.gz
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glibc-b46d250656794e63a2946c481fda29271342dd1a.zip
Remove kernel version check
The kernel version check is used to avoid glibc to run on older
kernels where some syscall are not available and fallback code are
not enabled to handle graciously fail.  However, it does not prevent
if the kernel does not correctly advertise its version through
vDSO note, uname or procfs.

Also kernel version checks are sometime not desirable by users,
where they want to deploy on different system with different kernel
version knowing the minimum set of syscall is always presented on
such systems.

The kernel version check has been removed along with the
LD_ASSUME_KERNEL environment variable.  The minimum kernel used to
built glibc is still provided through NT_GNU_ABI_TAG ELF note and
also printed when libc.so is issued.

Checked on x86_64-linux-gnu.
Diffstat (limited to 'NEWS')
-rw-r--r--NEWS5
1 files changed, 5 insertions, 0 deletions
diff --git a/NEWS b/NEWS
index ef8ac4acd2..e4fbd9639b 100644
--- a/NEWS
+++ b/NEWS
@@ -22,6 +22,11 @@ Deprecated and removed features, and other changes affecting compatibility:
   removal of the LD_TRACE_PRELINKING, and LD_USE_LOAD_BIAS, environment
   variables and their functionality in the dynamic loader.
 
+* The Linux kernel version check has been removed along with the
+  LD_ASSUME_KERNEL environment variable.  The minimum kernel used to built
+  glibc is still provided through NT_GNU_ABI_TAG ELF note and also printed
+  when libc.so is issued directly.
+
 Changes to build and runtime requirements:
 
   [Add changes to build and runtime requirements here]