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-rw-r--r--sysdeps/unix/sysv/linux/Makefile1
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h15
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/libmvec.abilist15
-rw-r--r--sysdeps/unix/sysv/linux/alpha/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/arc/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/arc/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/arm/be/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/arm/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/arm/le/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/bits/socket.h4
-rw-r--r--sysdeps/unix/sysv/linux/csky/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/dl-execstack.c25
-rw-r--r--sysdeps/unix/sysv/linux/hppa/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/i386/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/i386/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/loongarch/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/loongarch/lp64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/be/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/le/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/syscalls.list2
-rw-r--r--sysdeps/unix/sysv/linux/mips/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips32/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/net/if_packet.h2
-rw-r--r--sysdeps/unix/sysv/linux/netash/ash.h2
-rw-r--r--sysdeps/unix/sysv/linux/neteconet/ec.h2
-rw-r--r--sysdeps/unix/sysv/linux/netiucv/iucv.h2
-rw-r--r--sysdeps/unix/sysv/linux/nios2/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/or1k/Versions14
-rw-r--r--sysdeps/unix/sysv/linux/or1k/getcontext-common.S88
-rw-r--r--sysdeps/unix/sysv/linux/or1k/getcontext.S69
-rw-r--r--sysdeps/unix/sysv/linux/or1k/libc.abilist4
-rw-r--r--sysdeps/unix/sysv/linux/or1k/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/or1k/makecontext.c49
-rw-r--r--sysdeps/unix/sysv/linux/or1k/setcontext-common.S120
-rw-r--r--sysdeps/unix/sysv/linux/or1k/setcontext.S102
-rw-r--r--sysdeps/unix/sysv/linux/or1k/swapcontext-common.S139
-rw-r--r--sysdeps/unix/sysv/linux/or1k/swapcontext.S109
-rw-r--r--sysdeps/unix/sysv/linux/or1k/sys/ucontext.h1
-rw-r--r--sysdeps/unix/sysv/linux/or1k/ucontext_i.sym3
-rw-r--r--sysdeps/unix/sysv/linux/pidfd_getpid.c6
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc64/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist9
-rw-r--r--sysdeps/unix/sysv/linux/procutils.c5
-rw-r--r--sysdeps/unix/sysv/linux/procutils.h5
-rw-r--r--sysdeps/unix/sysv/linux/riscv/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/riscv/rv32/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/Makefile1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/sh/be/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/sh/le/libm.abilist6
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/sys/epoll.h14
-rw-r--r--sysdeps/unix/sysv/linux/sys/pidfd.h15
-rw-r--r--sysdeps/unix/sysv/linux/syscall-names.list4
-rw-r--r--sysdeps/unix/sysv/linux/timespec_get.c2
-rw-r--r--sysdeps/unix/sysv/linux/timespec_getres.c2
-rw-r--r--sysdeps/unix/sysv/linux/tst-epoll-ioctls.c92
-rw-r--r--sysdeps/unix/sysv/linux/tst-mman-consts.py2
-rwxr-xr-xsysdeps/unix/sysv/linux/tst-mount-consts.py4
-rw-r--r--sysdeps/unix/sysv/linux/tst-pidfd-consts.py2
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/64/libm.abilist8
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/clone3.S1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist8
76 files changed, 874 insertions, 274 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 415aa1f14d..ae66590e91 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -200,6 +200,7 @@ tests += \
   tst-clone2 \
   tst-clone3 \
   tst-epoll \
+  tst-epoll-ioctls \
   tst-fanotify \
   tst-fdopendir-o_path \
   tst-getauxval \
diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
index f82bde5d30..8dceaa1a52 100644
--- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
@@ -103,3 +103,18 @@
 #define HWCAP2_SVE_B16B16	(1UL << 45)
 #define HWCAP2_LRCPC3		(1UL << 46)
 #define HWCAP2_LSE128		(1UL << 47)
+#define HWCAP2_FPMR		(1UL << 48)
+#define HWCAP2_LUT		(1UL << 49)
+#define HWCAP2_FAMINMAX		(1UL << 50)
+#define HWCAP2_F8CVT		(1UL << 51)
+#define HWCAP2_F8FMA		(1UL << 52)
+#define HWCAP2_F8DP4		(1UL << 53)
+#define HWCAP2_F8DP2		(1UL << 54)
+#define HWCAP2_F8E4M3		(1UL << 55)
+#define HWCAP2_F8E5M2		(1UL << 56)
+#define HWCAP2_SME_LUTV2	(1UL << 57)
+#define HWCAP2_SME_F8F16	(1UL << 58)
+#define HWCAP2_SME_F8F32	(1UL << 59)
+#define HWCAP2_SME_SF8FMA	(1UL << 60)
+#define HWCAP2_SME_SF8DP4	(1UL << 61)
+#define HWCAP2_SME_SF8DP2	(1UL << 62)
diff --git a/sysdeps/unix/sysv/linux/aarch64/clone3.S b/sysdeps/unix/sysv/linux/aarch64/clone3.S
index 92d69a5430..e28aaa5083 100644
--- a/sysdeps/unix/sysv/linux/aarch64/clone3.S
+++ b/sysdeps/unix/sysv/linux/aarch64/clone3.S
@@ -82,4 +82,3 @@ thread_start:
 	.size thread_start, .-thread_start
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index f0da228fbb..a4bb539670 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -1149,3 +1149,11 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist b/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist
index 26c3fbf18b..b685106954 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist
@@ -79,6 +79,8 @@ GLIBC_2.40 _ZGVnN2v_asinh F
 GLIBC_2.40 _ZGVnN2v_asinhf F
 GLIBC_2.40 _ZGVnN2v_atanh F
 GLIBC_2.40 _ZGVnN2v_atanhf F
+GLIBC_2.40 _ZGVnN2v_cbrt F
+GLIBC_2.40 _ZGVnN2v_cbrtf F
 GLIBC_2.40 _ZGVnN2v_cosh F
 GLIBC_2.40 _ZGVnN2v_coshf F
 GLIBC_2.40 _ZGVnN2v_erf F
@@ -89,20 +91,29 @@ GLIBC_2.40 _ZGVnN2v_sinh F
 GLIBC_2.40 _ZGVnN2v_sinhf F
 GLIBC_2.40 _ZGVnN2v_tanh F
 GLIBC_2.40 _ZGVnN2v_tanhf F
+GLIBC_2.40 _ZGVnN2vv_hypot F
+GLIBC_2.40 _ZGVnN2vv_hypotf F
+GLIBC_2.40 _ZGVnN2vv_pow F
+GLIBC_2.40 _ZGVnN2vv_powf F
 GLIBC_2.40 _ZGVnN4v_acoshf F
 GLIBC_2.40 _ZGVnN4v_asinhf F
 GLIBC_2.40 _ZGVnN4v_atanhf F
+GLIBC_2.40 _ZGVnN4v_cbrtf F
 GLIBC_2.40 _ZGVnN4v_coshf F
 GLIBC_2.40 _ZGVnN4v_erfcf F
 GLIBC_2.40 _ZGVnN4v_erff F
 GLIBC_2.40 _ZGVnN4v_sinhf F
 GLIBC_2.40 _ZGVnN4v_tanhf F
+GLIBC_2.40 _ZGVnN4vv_hypotf F
+GLIBC_2.40 _ZGVnN4vv_powf F
 GLIBC_2.40 _ZGVsMxv_acosh F
 GLIBC_2.40 _ZGVsMxv_acoshf F
 GLIBC_2.40 _ZGVsMxv_asinh F
 GLIBC_2.40 _ZGVsMxv_asinhf F
 GLIBC_2.40 _ZGVsMxv_atanh F
 GLIBC_2.40 _ZGVsMxv_atanhf F
+GLIBC_2.40 _ZGVsMxv_cbrt F
+GLIBC_2.40 _ZGVsMxv_cbrtf F
 GLIBC_2.40 _ZGVsMxv_cosh F
 GLIBC_2.40 _ZGVsMxv_coshf F
 GLIBC_2.40 _ZGVsMxv_erf F
@@ -113,3 +124,7 @@ GLIBC_2.40 _ZGVsMxv_sinh F
 GLIBC_2.40 _ZGVsMxv_sinhf F
 GLIBC_2.40 _ZGVsMxv_tanh F
 GLIBC_2.40 _ZGVsMxv_tanhf F
+GLIBC_2.40 _ZGVsMxvv_hypot F
+GLIBC_2.40 _ZGVsMxvv_hypotf F
+GLIBC_2.40 _ZGVsMxvv_pow F
+GLIBC_2.40 _ZGVsMxvv_powf F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index f5d8023d62..8ff65e3f7e 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -1308,3 +1308,11 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/arc/clone3.S b/sysdeps/unix/sysv/linux/arc/clone3.S
index d9a2dfff3e..38a27063fb 100644
--- a/sysdeps/unix/sysv/linux/arc/clone3.S
+++ b/sysdeps/unix/sysv/linux/arc/clone3.S
@@ -87,4 +87,3 @@ thread_start_clone3:
 	.size thread_start_clone3, .-thread_start_clone3
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/arc/libm.abilist b/sysdeps/unix/sysv/linux/arc/libm.abilist
index f2169f8f57..af9df2673c 100644
--- a/sysdeps/unix/sysv/linux/arc/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libm.abilist
@@ -757,3 +757,9 @@ GLIBC_2.35 fminimumf64 F
 GLIBC_2.35 fminimuml F
 GLIBC_2.35 fsqrt F
 GLIBC_2.35 fsqrtl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libm.abilist b/sysdeps/unix/sysv/linux/arm/be/libm.abilist
index f020a8a904..0e460259f3 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.4 y1l F
 GLIBC_2.4 yn F
 GLIBC_2.4 ynf F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/arm/clone3.S b/sysdeps/unix/sysv/linux/arm/clone3.S
index e759de9730..094efc2f40 100644
--- a/sysdeps/unix/sysv/linux/arm/clone3.S
+++ b/sysdeps/unix/sysv/linux/arm/clone3.S
@@ -77,4 +77,3 @@ PSEUDO_END (__clone3)
 	.fnend
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/arm/le/libm.abilist b/sysdeps/unix/sysv/linux/arm/le/libm.abilist
index f020a8a904..0e460259f3 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.4 y1l F
 GLIBC_2.4 yn F
 GLIBC_2.4 ynf F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index 86444f0018..5ab19a8c08 100644
--- a/sysdeps/unix/sysv/linux/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -181,7 +181,7 @@ typedef __socklen_t socklen_t;
 #include <bits/sockaddr.h>
 
 /* Structure describing a generic socket address.  */
-struct sockaddr
+struct __attribute_struct_may_alias__ sockaddr
   {
     __SOCKADDR_COMMON (sa_);	/* Common data: address family and length.  */
     char sa_data[14];		/* Address data.  */
@@ -194,7 +194,7 @@ struct sockaddr
 #define _SS_PADSIZE \
   (_SS_SIZE - __SOCKADDR_COMMON_SIZE - sizeof (__ss_aligntype))
 
-struct sockaddr_storage
+struct __attribute_struct_may_alias__ sockaddr_storage
   {
     __SOCKADDR_COMMON (ss_);	/* Address family, etc.  */
     char __ss_padding[_SS_PADSIZE];
diff --git a/sysdeps/unix/sysv/linux/csky/libm.abilist b/sysdeps/unix/sysv/linux/csky/libm.abilist
index 225a5e9b81..4c1216044d 100644
--- a/sysdeps/unix/sysv/linux/csky/libm.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libm.abilist
@@ -823,3 +823,9 @@ GLIBC_2.35 fminimumf64 F
 GLIBC_2.35 fminimuml F
 GLIBC_2.35 fsqrt F
 GLIBC_2.35 fsqrtl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/dl-execstack.c b/sysdeps/unix/sysv/linux/dl-execstack.c
index 3d8f3938da..b986898598 100644
--- a/sysdeps/unix/sysv/linux/dl-execstack.c
+++ b/sysdeps/unix/sysv/linux/dl-execstack.c
@@ -27,35 +27,30 @@
 #include <sysdep.h>
 #include <unistd.h>
 
-extern int __stack_prot attribute_relro attribute_hidden;
-
 static int
 make_main_stack_executable (void **stack_endp)
 {
   /* This gives us the highest/lowest page that needs to be changed.  */
   uintptr_t page = ((uintptr_t) *stack_endp
 		    & -(intptr_t) GLRO(dl_pagesize));
-  int result = 0;
 
-  if (__builtin_expect (__mprotect ((void *) page, GLRO(dl_pagesize),
-				    __stack_prot) == 0, 1))
-    goto return_success;
-  result = errno;
-  goto out;
+  if (__mprotect ((void *) page, GLRO(dl_pagesize),
+		  PROT_READ | PROT_WRITE | PROT_EXEC
+#if _STACK_GROWS_DOWN
+		  | PROT_GROWSDOWN
+#elif _STACK_GROWS_UP
+		  | PROT_GROWSUP
+#endif
+		  ) != 0)
+    return errno;
 
- return_success:
   /* Clear the address.  */
   *stack_endp = NULL;
 
   /* Remember that we changed the permission.  */
   GL(dl_stack_flags) |= PF_X;
 
- out:
-#ifdef check_consistency
-  check_consistency ();
-#endif
-
-  return result;
+  return 0;
 }
 
 int
diff --git a/sysdeps/unix/sysv/linux/hppa/libm.abilist b/sysdeps/unix/sysv/linux/hppa/libm.abilist
index 450ac03223..3ea5b611eb 100644
--- a/sysdeps/unix/sysv/linux/hppa/libm.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
 GLIBC_2.4 exp2l F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/i386/clone3.S b/sysdeps/unix/sysv/linux/i386/clone3.S
index abb7356b1f..6803e59644 100644
--- a/sysdeps/unix/sysv/linux/i386/clone3.S
+++ b/sysdeps/unix/sysv/linux/i386/clone3.S
@@ -120,4 +120,3 @@ L(thread_start):
 PSEUDO_END (__clone3)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist
index 5d89aaa08e..696e52e65a 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -1188,3 +1188,11 @@ GLIBC_2.35 fsqrt F
 GLIBC_2.35 fsqrtl F
 GLIBC_2.35 hypot F
 GLIBC_2.35 hypotf F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/loongarch/clone3.S b/sysdeps/unix/sysv/linux/loongarch/clone3.S
index 20eaf4adc2..dfffb1f3d6 100644
--- a/sysdeps/unix/sysv/linux/loongarch/clone3.S
+++ b/sysdeps/unix/sysv/linux/loongarch/clone3.S
@@ -80,4 +80,3 @@ L (thread_start3):
 	END (__thread_start3)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/loongarch/lp64/libm.abilist b/sysdeps/unix/sysv/linux/loongarch/lp64/libm.abilist
index b3dbd00001..1c6f02ac5a 100644
--- a/sysdeps/unix/sysv/linux/loongarch/lp64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/loongarch/lp64/libm.abilist
@@ -1028,3 +1028,11 @@ GLIBC_2.36 ynf32x F
 GLIBC_2.36 ynf64 F
 GLIBC_2.36 ynf64x F
 GLIBC_2.36 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
index f020a8a904..0e460259f3 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.4 y1l F
 GLIBC_2.4 yn F
 GLIBC_2.4 ynf F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
index e7cd739a54..be8262bb48 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
@@ -884,3 +884,9 @@ GLIBC_2.35 fsqrt F
 GLIBC_2.35 fsqrtl F
 GLIBC_2.35 hypot F
 GLIBC_2.35 hypotf F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist
index 1f7f63f60c..cc091b2d4e 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist
index 1f7f63f60c..cc091b2d4e 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/microblaze/syscalls.list b/sysdeps/unix/sysv/linux/microblaze/syscalls.list
index 878ce7e6a2..5760c657a6 100644
--- a/sysdeps/unix/sysv/linux/microblaze/syscalls.list
+++ b/sysdeps/unix/sysv/linux/microblaze/syscalls.list
@@ -1,5 +1,3 @@
 # File name	Caller	Syscall name	Args	Strong name	Weak names
 
-cacheflush	EXTRA	cacheflush	i:iiii	__cacheflush	cacheflush
-
 personality	EXTRA	personality	Ei:i	__personality	personality
diff --git a/sysdeps/unix/sysv/linux/mips/clone3.S b/sysdeps/unix/sysv/linux/mips/clone3.S
index 481b8ae963..58925d6b41 100644
--- a/sysdeps/unix/sysv/linux/mips/clone3.S
+++ b/sysdeps/unix/sysv/linux/mips/clone3.S
@@ -158,4 +158,3 @@ L(thread_start_clone3):
 END(__thread_start_clone3)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
index 797071aee8..4d442a989d 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
 GLIBC_2.4 exp2l F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
index 14758703cf..ae7b4a7558 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
@@ -1149,3 +1149,11 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/net/if_packet.h b/sysdeps/unix/sysv/linux/net/if_packet.h
index 9ffb69b508..c17e1c23c5 100644
--- a/sysdeps/unix/sysv/linux/net/if_packet.h
+++ b/sysdeps/unix/sysv/linux/net/if_packet.h
@@ -26,7 +26,7 @@
    From Linux 2.1 the AF_PACKET interface is preferred and you should
    consider using it in place of this one.  */
 
-struct sockaddr_pkt
+struct __attribute_struct_may_alias__ sockaddr_pkt
   {
     __SOCKADDR_COMMON (spkt_);
     unsigned char spkt_device[14];
diff --git a/sysdeps/unix/sysv/linux/netash/ash.h b/sysdeps/unix/sysv/linux/netash/ash.h
index 7d885d17cc..7a6ff50b17 100644
--- a/sysdeps/unix/sysv/linux/netash/ash.h
+++ b/sysdeps/unix/sysv/linux/netash/ash.h
@@ -22,7 +22,7 @@
 #include <features.h>
 #include <bits/sockaddr.h>
 
-struct sockaddr_ash
+struct __attribute_struct_may_alias__ sockaddr_ash
   {
     __SOCKADDR_COMMON (sash_);		/* Common data: address family etc.  */
     int sash_ifindex;			/* Interface to use.  */
diff --git a/sysdeps/unix/sysv/linux/neteconet/ec.h b/sysdeps/unix/sysv/linux/neteconet/ec.h
index b07a107961..f3132f06ff 100644
--- a/sysdeps/unix/sysv/linux/neteconet/ec.h
+++ b/sysdeps/unix/sysv/linux/neteconet/ec.h
@@ -28,7 +28,7 @@ struct ec_addr
     unsigned char net;			/* Network number.  */
   };
 
-struct sockaddr_ec
+struct __attribute_struct_may_alias__ sockaddr_ec
   {
     __SOCKADDR_COMMON (sec_);
     unsigned char port;			/* Port number.  */
diff --git a/sysdeps/unix/sysv/linux/netiucv/iucv.h b/sysdeps/unix/sysv/linux/netiucv/iucv.h
index f5fad81751..27151e8bbe 100644
--- a/sysdeps/unix/sysv/linux/netiucv/iucv.h
+++ b/sysdeps/unix/sysv/linux/netiucv/iucv.h
@@ -23,7 +23,7 @@
 
 __BEGIN_DECLS
 
-struct sockaddr_iucv
+struct __attribute_struct_may_alias__ sockaddr_iucv
   {
     __SOCKADDR_COMMON (siucv_);
     unsigned short	siucv_port;		/* Reserved */
diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist
index c0ebe119dc..9ed3fbdee4 100644
--- a/sysdeps/unix/sysv/linux/nios2/libm.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/or1k/Versions b/sysdeps/unix/sysv/linux/or1k/Versions
new file mode 100644
index 0000000000..c1299de116
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/or1k/Versions
@@ -0,0 +1,14 @@
+libc {
+  GLIBC_2.35 {
+    getcontext;
+    setcontext;
+    swapcontext;
+    makecontext;
+  }
+  GLIBC_2.40 {
+    getcontext;
+    setcontext;
+    swapcontext;
+    makecontext;
+  }
+}
diff --git a/sysdeps/unix/sysv/linux/or1k/getcontext-common.S b/sysdeps/unix/sysv/linux/or1k/getcontext-common.S
new file mode 100644
index 0000000000..9187749615
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/or1k/getcontext-common.S
@@ -0,0 +1,88 @@
+/* Save current context.  OpenRISC common version.
+   Copyright (C) 2024 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* This common getcontext template helps define different
+   implementations using control macros.  Before including
+   this file in another file define the following:
+
+     __CONTEXT_FUNC_NAME
+     __CONTEXT_ENABLE_FPCSR
+     __CONTEXT_SIGMASK_OFFSET
+ */
+
+/* int getcontext (ucontext_t *ucp)
+
+   Returns 0 on success -1 and errno on failure.
+ */
+	.text
+ENTRY(__CONTEXT_FUNC_NAME)
+	/* Store r1, the stack pointer.  */
+	l.sw	(UCONTEXT_MCONTEXT +  1*4)(r3), r1
+	/* Store r2, the frame pointer.  */
+	l.sw	(UCONTEXT_MCONTEXT +  2*4)(r3), r2
+	/* Store r9, the link register.  */
+	l.sw	(UCONTEXT_MCONTEXT +  9*4)(r3), r9
+	/* Store r9 to reg[11] too, as we need two links for makecontext.  */
+	l.sw	(UCONTEXT_MCONTEXT + 11*4)(r3), r9
+	/* Store r10, the TLS register.  */
+	l.sw	(UCONTEXT_MCONTEXT + 10*4)(r3), r10
+	/* Store r14-r30 even, callee saved registers.  */
+	l.sw	(UCONTEXT_MCONTEXT + 14*4)(r3), r14
+	l.sw	(UCONTEXT_MCONTEXT + 16*4)(r3), r16
+	l.sw	(UCONTEXT_MCONTEXT + 18*4)(r3), r18
+	l.sw	(UCONTEXT_MCONTEXT + 20*4)(r3), r20
+	l.sw	(UCONTEXT_MCONTEXT + 22*4)(r3), r22
+	l.sw	(UCONTEXT_MCONTEXT + 24*4)(r3), r24
+	l.sw	(UCONTEXT_MCONTEXT + 26*4)(r3), r26
+	l.sw	(UCONTEXT_MCONTEXT + 28*4)(r3), r28
+	l.sw	(UCONTEXT_MCONTEXT + 30*4)(r3), r30
+
+#ifdef __CONTEXT_ENABLE_FPCSR
+# ifdef __or1k_hard_float__
+	/* Store the floating point state.  */
+	l.mfspr	r4, r0, 20
+	l.sw	(MCONTEXT_FPCSR)(r3), r4
+# else
+	/* Store zero to indicate default rounding as per softfloat.  */
+	l.sw	(MCONTEXT_FPCSR)(r3), r0
+# endif /* __or1k_hard_float__ */
+#endif /* __CONTEXT_ENABLE_FPCSR */
+
+	/* Get signal mask.  */
+	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
+	l.ori	r6, r0, _NSIG8
+	l.addi	r5, r3, __CONTEXT_SIGMASK_OFFSET
+	l.ori	r4, r0, 0
+	l.ori	r3, r0, SIG_BLOCK
+	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
+	/* Do the syscall.  */
+	l.sys	1
+	 l.nop
+
+	/* if -4096 < ret < 0 holds, it's an error */
+	l.sfgeui r11, 0xf001
+	l.bf	1f
+	 l.nop
+
+	l.jr	r9
+	 l.ori r11, r0, 0
+
+1:	l.j	__syscall_error
+	 l.ori	r3, r11, 0
+
+END(__CONTEXT_FUNC_NAME)
diff --git a/sysdeps/unix/sysv/linux/or1k/getcontext.S b/sysdeps/unix/sysv/linux/or1k/getcontext.S
index a25b377bda..da69e6999c 100644
--- a/sysdeps/unix/sysv/linux/or1k/getcontext.S
+++ b/sysdeps/unix/sysv/linux/or1k/getcontext.S
@@ -17,56 +17,35 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
+#include <shlib-compat.h>
 #include "ucontext_i.h"
 
-/* int getcontext (ucontext_t *ucp)
+#define __CONTEXT_FUNC_NAME __getcontext
+#define __CONTEXT_ENABLE_FPCSR 1
+#define __CONTEXT_SIGMASK_OFFSET UCONTEXT_SIGMASK
 
-   Returns 0 on success -1 and errno on failure.
- */
-	.text
-ENTRY(__getcontext)
-	/* Store r1, the stack pointer.  */
-	l.sw	(UCONTEXT_MCONTEXT +  1*4)(r3), r1
-	/* Store r2, the frame pointer.  */
-	l.sw	(UCONTEXT_MCONTEXT +  2*4)(r3), r2
-	/* Store r9, the link register.  */
-	l.sw	(UCONTEXT_MCONTEXT +  9*4)(r3), r9
-	/* Store r9 to reg[11] too, as we need two links for makecontext.  */
-	l.sw	(UCONTEXT_MCONTEXT + 11*4)(r3), r9
-	/* Store r10, the TLS register.  */
-	l.sw	(UCONTEXT_MCONTEXT + 10*4)(r3), r10
-	/* Store r14-r30 even, callee saved registers.  */
-	l.sw	(UCONTEXT_MCONTEXT + 14*4)(r3), r14
-	l.sw	(UCONTEXT_MCONTEXT + 16*4)(r3), r16
-	l.sw	(UCONTEXT_MCONTEXT + 18*4)(r3), r18
-	l.sw	(UCONTEXT_MCONTEXT + 20*4)(r3), r20
-	l.sw	(UCONTEXT_MCONTEXT + 22*4)(r3), r22
-	l.sw	(UCONTEXT_MCONTEXT + 24*4)(r3), r24
-	l.sw	(UCONTEXT_MCONTEXT + 26*4)(r3), r26
-	l.sw	(UCONTEXT_MCONTEXT + 28*4)(r3), r28
-	l.sw	(UCONTEXT_MCONTEXT + 30*4)(r3), r30
+#include "getcontext-common.S"
 
-	/* Get signal mask.  */
-	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
-	l.ori	r6, r0, _NSIG8
-	l.addi	r5, r3, UCONTEXT_SIGMASK
-	l.ori	r4, r0, 0
-	l.ori	r3, r0, SIG_BLOCK
-	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
-	/* Do the syscall.  */
-	l.sys	1
-	 l.nop
+versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_40)
 
-	/* if -4096 < ret < 0 holds, it's an error */
-	l.sfgeui r11, 0xf001
-	l.bf	1f
-	 l.nop
+#if SHLIB_COMPAT (libc, GLIBC_2_35, GLIBC_2_40)
 
-	l.jr	r9
-	 l.ori r11, r0, 0
+/* Define a compat version of getcontext for glibc's before the fpcsr
+   field was added to mcontext_t.  The offset sigmask changed with this
+   introduction, the change was done because glibc's definition of
+   ucontext_t was initially defined incompatible with the Linux
+   definition of ucontext_t.  We keep the compatability definition to
+   allow getcontext, setcontext and swapcontext to work in older
+   binaries.  */
 
-1:	l.j	__syscall_error
-	 l.ori	r3, r11, 0
+# undef __CONTEXT_FUNC_NAME
+# undef __CONTEXT_ENABLE_FPCSR
+# undef __CONTEXT_SIGMASK_OFFSET
+# define __CONTEXT_FUNC_NAME __getcontext_nofpcsr
+# define __CONTEXT_SIGMASK_OFFSET (UCONTEXT_SIGMASK - 4)
 
-END(__getcontext)
-weak_alias(__getcontext, getcontext)
+# include "getcontext-common.S"
+
+compat_symbol (libc, __getcontext_nofpcsr, getcontext, GLIBC_2_35)
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/or1k/libc.abilist b/sysdeps/unix/sysv/linux/or1k/libc.abilist
index c40c843aaf..959e59e7e7 100644
--- a/sysdeps/unix/sysv/linux/or1k/libc.abilist
+++ b/sysdeps/unix/sysv/linux/or1k/libc.abilist
@@ -2255,3 +2255,7 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
 GLIBC_2.39 stdc_trailing_zeros_ul F
 GLIBC_2.39 stdc_trailing_zeros_ull F
 GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 getcontext F
+GLIBC_2.40 makecontext F
+GLIBC_2.40 setcontext F
+GLIBC_2.40 swapcontext F
diff --git a/sysdeps/unix/sysv/linux/or1k/libm.abilist b/sysdeps/unix/sysv/linux/or1k/libm.abilist
index 9d26508ff5..69655f7d23 100644
--- a/sysdeps/unix/sysv/linux/or1k/libm.abilist
+++ b/sysdeps/unix/sysv/linux/or1k/libm.abilist
@@ -757,3 +757,9 @@ GLIBC_2.35 ynf32 F
 GLIBC_2.35 ynf32x F
 GLIBC_2.35 ynf64 F
 GLIBC_2.35 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/or1k/makecontext.c b/sysdeps/unix/sysv/linux/or1k/makecontext.c
index fa6626e7de..7e131bae41 100644
--- a/sysdeps/unix/sysv/linux/or1k/makecontext.c
+++ b/sysdeps/unix/sysv/linux/or1k/makecontext.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
+#include <shlib-compat.h>
 #include <sysdep.h>
 #include <stdarg.h>
 #include <stdint.h>
@@ -36,12 +37,11 @@
      r1     : stack pointer
      r2     : frame pointer, set to NULL
 */
-void
-__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+static void
+do_makecontext (ucontext_t *ucp, void (*startcontext) (void),
+		void (*func) (void), int argc, va_list ap)
 {
-  extern void __startcontext (void);
   unsigned long int *sp;
-  va_list ap;
   int i;
 
   sp = (unsigned long int *)
@@ -55,8 +55,8 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
 
   /* Keep uc_link in r14.  */
   ucp->uc_mcontext.__gprs[14] = (uintptr_t) ucp->uc_link;
-  /* Return address points to function __startcontext.  */
-  ucp->uc_mcontext.__gprs[9] = (uintptr_t) &__startcontext;
+  /* Return address points to function startcontext.  */
+  ucp->uc_mcontext.__gprs[9] = (uintptr_t) startcontext;
   /* Frame pointer is null.  */
   ucp->uc_mcontext.__gprs[2] = (uintptr_t) 0;
   /* Restart in user-space starting at 'func'.  */
@@ -64,14 +64,47 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
   /* Set stack pointer.  */
   ucp->uc_mcontext.__gprs[1] = (uintptr_t) sp;
 
-  va_start (ap, argc);
   for (i = 0; i < argc; ++i)
     if (i < 6)
       ucp->uc_mcontext.__gprs[i + 3] = va_arg (ap, unsigned long int);
     else
       sp[i - 6] = va_arg (ap, unsigned long int);
+}
 
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  extern void __startcontext (void);
+  va_list ap;
+
+  va_start (ap, argc);
+  do_makecontext (ucp, &__startcontext, func, argc, ap);
   va_end (ap);
 }
 
-weak_alias (__makecontext, makecontext)
+versioned_symbol (libc, __makecontext, makecontext, GLIBC_2_40);
+
+#if SHLIB_COMPAT (libc, GLIBC_2_35, GLIBC_2_40)
+
+/* Define a compat version of makecontext for glibc's before the fpcsr
+   field was added to mcontext_t.  The offset sigmask changed with this
+   introduction, the change was done because glibc's definition of
+   ucontext_t was initially defined incompatible with the Linux
+   definition of ucontext_t.  We keep the compatability definition to
+   allow getcontext, setcontext and swapcontext to work in older
+   binaries.  */
+
+void
+__makecontext_nofpcsr (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  extern void __startcontext_nofpcsr (void);
+  va_list ap;
+
+  va_start (ap, argc);
+  do_makecontext (ucp, &__startcontext_nofpcsr, func, argc, ap);
+  va_end (ap);
+}
+
+compat_symbol (libc, __makecontext_nofpcsr, makecontext, GLIBC_2_35);
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/or1k/setcontext-common.S b/sysdeps/unix/sysv/linux/or1k/setcontext-common.S
new file mode 100644
index 0000000000..8a4f147513
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/or1k/setcontext-common.S
@@ -0,0 +1,120 @@
+/* Set current context.  OpenRISC common version.
+   Copyright (C) 2024 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* This common setcontext and startcontext template helps define
+   different implementations using control macros.  Before including
+   this file in another file define the following:
+
+     __CONTEXT_FUNC_NAME
+     __CONTEXT_ENABLE_FPCSR
+     __CONTEXT_SIGMASK_OFFSET
+     __STARTCONTEXT_FUNC_NAME
+ */
+
+/* int setcontext (const ucontext_t *ucp) */
+	.text
+ENTRY(__CONTEXT_FUNC_NAME)
+	l.ori	r30, r3, 0
+
+	/* Restore signal mask.  */
+	/* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG8) */
+	l.ori	r6, r0, _NSIG8
+	l.ori	r5, r0, 0
+	l.addi	r4, r3, __CONTEXT_SIGMASK_OFFSET
+	l.ori	r3, r0, SIG_SETMASK
+	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
+	/* Do the syscall.  */
+	l.sys 1
+	 l.nop
+
+	/* if -4096 < ret < 0 holds, it's an error */
+	l.sfgeui r11, 0xf001
+	l.bf	1f
+	 l.nop
+#ifdef __CONTEXT_ENABLE_FPCSR
+# ifdef __or1k_hard_float__
+	/* Restore the floating point state.  */
+	l.lwz	r28, (MCONTEXT_FPCSR)(r30)
+	l.mtspr	r0, r28, 20
+# endif /* __or1k_hard_float__ */
+#endif /* __CONTEXT_ENABLE_FPCSR */
+	/* Restore argument registers, for the makecontext case.  */
+	l.lwz	r3, (UCONTEXT_MCONTEXT +  3*4)(r30)
+	l.lwz	r4, (UCONTEXT_MCONTEXT +  4*4)(r30)
+	l.lwz	r5, (UCONTEXT_MCONTEXT +  5*4)(r30)
+	l.lwz	r6, (UCONTEXT_MCONTEXT +  6*4)(r30)
+	l.lwz	r7, (UCONTEXT_MCONTEXT +  7*4)(r30)
+	l.lwz	r8, (UCONTEXT_MCONTEXT +  8*4)(r30)
+
+	/* Restore registers stored in getcontext.  */
+	l.lwz	r1,  (UCONTEXT_MCONTEXT +  1*4)(r30)
+	l.lwz	r2,  (UCONTEXT_MCONTEXT +  2*4)(r30)
+	l.lwz	r9,  (UCONTEXT_MCONTEXT +  9*4)(r30)
+	l.lwz	r10, (UCONTEXT_MCONTEXT + 10*4)(r30)
+	l.lwz	r11, (UCONTEXT_MCONTEXT + 11*4)(r30)
+	/* Restore r14-r30 even, callee saved registers.  */
+	l.lwz	r14, (UCONTEXT_MCONTEXT + 14*4)(r30)
+	l.lwz	r16, (UCONTEXT_MCONTEXT + 16*4)(r30)
+	l.lwz	r18, (UCONTEXT_MCONTEXT + 18*4)(r30)
+	l.lwz	r20, (UCONTEXT_MCONTEXT + 20*4)(r30)
+	l.lwz	r22, (UCONTEXT_MCONTEXT + 22*4)(r30)
+	l.lwz	r24, (UCONTEXT_MCONTEXT + 24*4)(r30)
+	l.lwz	r26, (UCONTEXT_MCONTEXT + 26*4)(r30)
+	l.lwz	r28, (UCONTEXT_MCONTEXT + 28*4)(r30)
+	l.lwz	r30, (UCONTEXT_MCONTEXT + 30*4)(r30)
+
+	l.jr	r11
+	 l.ori	r11, r0, 0
+
+1:	l.j	__syscall_error
+	 l.ori	r3, r11, 0
+
+END (__CONTEXT_FUNC_NAME)
+
+	/* We add a NOP here because when the unwinder is looking for the
+	   enclosing function of the link register (r9) address FDE lookup will
+	   use '$r9 - 1' finding setcontext which is wrong.  This is because in
+	   makecontext we have set r9 to the start of &__startcontext.
+
+	   If this NOP did not exist the unwinder would repeatedly find
+	   __setcontext's FDE in an infinite loop.  Modifying/deleting the below
+	   __startcontext's FDE has no help on this.  */
+	l.nop
+
+ENTRY(__STARTCONTEXT_FUNC_NAME)
+
+	l.ori	r3, r14, 0
+	l.sfeq	r3, r0
+	/* If uc_link is not 0 resume there, otherwise exit.  */
+	l.bnf	__CONTEXT_FUNC_NAME
+	 l.nop
+
+#ifdef SHARED
+	/* Obtain a pointer to .got in r16 */
+	l.jal	0x8
+	 l.movhi r16, gotpchi(_GLOBAL_OFFSET_TABLE_-4)
+	l.ori	r16, r16, gotpclo(_GLOBAL_OFFSET_TABLE_+0)
+	l.add	r16, r16, r9
+	l.lwz	r16, got(exit)(r16)
+	l.jr	r16
+#else
+	l.j	exit
+#endif
+	 l.nop
+
+END(__STARTCONTEXT_FUNC_NAME)
diff --git a/sysdeps/unix/sysv/linux/or1k/setcontext.S b/sysdeps/unix/sysv/linux/or1k/setcontext.S
index d28a0ac0aa..a49a5c51c3 100644
--- a/sysdeps/unix/sysv/linux/or1k/setcontext.S
+++ b/sysdeps/unix/sysv/linux/or1k/setcontext.S
@@ -16,93 +16,39 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
+#include <shlib-compat.h>
 #include <sysdep.h>
 #include "ucontext_i.h"
 
-/* int setcontext (const ucontext_t *ucp) */
-	.text
-ENTRY(__setcontext)
-	l.ori	r30, r3, 0
+#define __CONTEXT_FUNC_NAME __setcontext
+#define __CONTEXT_ENABLE_FPCSR 1
+#define __CONTEXT_SIGMASK_OFFSET UCONTEXT_SIGMASK
+#define __STARTCONTEXT_FUNC_NAME __startcontext
 
-	/* Restore signal mask.  */
-	/* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG8) */
-	l.ori	r6, r0, _NSIG8
-	l.ori	r5, r0, 0
-	l.addi	r4, r3, UCONTEXT_SIGMASK
-	l.ori	r3, r0, SIG_SETMASK
-	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
-	/* Do the syscall.  */
-	l.sys 1
-	 l.nop
+#include "setcontext-common.S"
 
-	/* if -4096 < ret < 0 holds, it's an error */
-	l.sfgeui r11, 0xf001
-	l.bf	1f
-	 l.nop
+versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_40)
 
-	/* Restore argument registers, for the makecontext case.  */
-	l.lwz	r3, (UCONTEXT_MCONTEXT +  3*4)(r30)
-	l.lwz	r4, (UCONTEXT_MCONTEXT +  4*4)(r30)
-	l.lwz	r5, (UCONTEXT_MCONTEXT +  5*4)(r30)
-	l.lwz	r6, (UCONTEXT_MCONTEXT +  6*4)(r30)
-	l.lwz	r7, (UCONTEXT_MCONTEXT +  7*4)(r30)
-	l.lwz	r8, (UCONTEXT_MCONTEXT +  8*4)(r30)
+#if SHLIB_COMPAT (libc, GLIBC_2_35, GLIBC_2_40)
 
-	/* Restore registers stored in getcontext.  */
-	l.lwz	r1,  (UCONTEXT_MCONTEXT +  1*4)(r30)
-	l.lwz	r2,  (UCONTEXT_MCONTEXT +  2*4)(r30)
-	l.lwz	r9,  (UCONTEXT_MCONTEXT +  9*4)(r30)
-	l.lwz	r10, (UCONTEXT_MCONTEXT + 10*4)(r30)
-	l.lwz	r11, (UCONTEXT_MCONTEXT + 11*4)(r30)
-	/* Restore r14-r30 even, callee saved registers.  */
-	l.lwz	r14, (UCONTEXT_MCONTEXT + 14*4)(r30)
-	l.lwz	r16, (UCONTEXT_MCONTEXT + 16*4)(r30)
-	l.lwz	r18, (UCONTEXT_MCONTEXT + 18*4)(r30)
-	l.lwz	r20, (UCONTEXT_MCONTEXT + 20*4)(r30)
-	l.lwz	r22, (UCONTEXT_MCONTEXT + 22*4)(r30)
-	l.lwz	r24, (UCONTEXT_MCONTEXT + 24*4)(r30)
-	l.lwz	r26, (UCONTEXT_MCONTEXT + 26*4)(r30)
-	l.lwz	r28, (UCONTEXT_MCONTEXT + 28*4)(r30)
-	l.lwz	r30, (UCONTEXT_MCONTEXT + 30*4)(r30)
+/* Define a compat version of setcontext for glibc's before the fpcsr
+   field was added to mcontext_t.  The offset sigmask changed with this
+   introduction, the change was done because glibc's definition of
+   ucontext_t was initially defined incompatible with the Linux
+   definition of ucontext_t.  We keep the compatability definition to
+   allow getcontext, setcontext and swapcontext to work in older
+   binaries.  */
 
-	l.jr	r11
-	 l.ori	r11, r0, 0
+# undef __CONTEXT_FUNC_NAME
+# undef __CONTEXT_ENABLE_FPCSR
+# undef __CONTEXT_SIGMASK_OFFSET
+# undef __STARTCONTEXT_FUNC_NAME
+# define __CONTEXT_FUNC_NAME __setcontext_nofpcsr
+# define __CONTEXT_SIGMASK_OFFSET (UCONTEXT_SIGMASK - 4)
+# define __STARTCONTEXT_FUNC_NAME __startcontext_nofpcsr
 
-1:	l.j	__syscall_error
-	 l.ori	r3, r11, 0
+# include "setcontext-common.S"
 
-END (__setcontext)
-weak_alias (__setcontext, setcontext)
+compat_symbol (libc, __setcontext_nofpcsr, setcontext, GLIBC_2_35)
 
-	/* We add a NOP here because when the unwinder is looking for the
-	   enclosing function of the link register (r9) address FDE lookup will
-	   use '$r9 - 1' finding setcontext which is wrong.  This is because in
-	   makecontext we have set r9 to the start of &__startcontext.
-
-	   If this NOP did not exist the unwinder would repeatedly find
-	   __setcontext's FDE in an infinite loop.  Modifying/deleting the below
-	   __startcontext's FDE has no help on this.  */
-	l.nop
-
-ENTRY(__startcontext)
-
-	l.ori	r3, r14, 0
-	l.sfeq	r3, r0
-	/* If uc_link is not 0 resume there, otherwise exit.  */
-	l.bnf	__setcontext
-	 l.nop
-
-#ifdef SHARED
-	/* Obtain a pointer to .got in r16 */
-	l.jal	0x8
-	 l.movhi r16, gotpchi(_GLOBAL_OFFSET_TABLE_-4)
-	l.ori	r16, r16, gotpclo(_GLOBAL_OFFSET_TABLE_+0)
-	l.add	r16, r16, r9
-	l.lwz	r16, got(exit)(r16)
-	l.jr	r16
-#else
-	l.j	exit
 #endif
-	 l.nop
-
-END(__startcontext)
diff --git a/sysdeps/unix/sysv/linux/or1k/swapcontext-common.S b/sysdeps/unix/sysv/linux/or1k/swapcontext-common.S
new file mode 100644
index 0000000000..b7e2d4c820
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/or1k/swapcontext-common.S
@@ -0,0 +1,139 @@
+/* Swap two contexts.  OpenRISC version.
+   Copyright (C) 2022-2024 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* This common swapcontext template helps define different
+   implementations using control macros.  Before including this file
+   in another file define the following:
+
+     __CONTEXT_FUNC_NAME
+     __CONTEXT_ENABLE_FPCSR
+     __CONTEXT_SIGMASK_OFFSET
+ */
+
+/* int swapcontext (ucontext_t *oucp, const ucontext_t *ucp) */
+	.text
+ENTRY(__CONTEXT_FUNC_NAME)
+
+	/* Same as getcontext.  */
+	/* Store r1, the stack pointer.  */
+	l.sw	(UCONTEXT_MCONTEXT +  1*4)(r3), r1
+	/* Store r2, the frame pointer.  */
+	l.sw	(UCONTEXT_MCONTEXT +  2*4)(r3), r2
+	/* Store r9, the link register.  */
+	l.sw	(UCONTEXT_MCONTEXT +  9*4)(r3), r9
+	/* Store r9 to reg[11] too, as we need two links for makecontext.  */
+	l.sw	(UCONTEXT_MCONTEXT + 11*4)(r3), r9
+	/* Store r10, the TLS register.  */
+	l.sw	(UCONTEXT_MCONTEXT + 10*4)(r3), r10
+	/* Store r14-r30 even, callee saved registers.  */
+	l.sw	(UCONTEXT_MCONTEXT + 14*4)(r3), r14
+	l.sw	(UCONTEXT_MCONTEXT + 16*4)(r3), r16
+	l.sw	(UCONTEXT_MCONTEXT + 18*4)(r3), r18
+	l.sw	(UCONTEXT_MCONTEXT + 20*4)(r3), r20
+	l.sw	(UCONTEXT_MCONTEXT + 22*4)(r3), r22
+	l.sw	(UCONTEXT_MCONTEXT + 24*4)(r3), r24
+	l.sw	(UCONTEXT_MCONTEXT + 26*4)(r3), r26
+	l.sw	(UCONTEXT_MCONTEXT + 28*4)(r3), r28
+	l.sw	(UCONTEXT_MCONTEXT + 30*4)(r3), r30
+
+#ifdef __CONTEXT_ENABLE_FPCSR
+# ifdef __or1k_hard_float__
+	/* Store the floating point state.  */
+	l.mfspr	r6, r0, 20
+	l.sw	(MCONTEXT_FPCSR)(r3), r6
+# else
+	/* Store zero to indicate default rounding as per softfloat.  */
+	l.sw	(MCONTEXT_FPCSR)(r3), r0
+# endif /* __or1k_hard_float__ */
+#endif /* __CONTEXT_ENABLE_FPCSR */
+	/* Store ucp to non-argument syscall preserved register.  */
+	l.ori	r30, r4, 0
+
+	/* Get signal mask.  */
+	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
+	l.ori	r6, r0, _NSIG8
+	l.addi	r5, r3, __CONTEXT_SIGMASK_OFFSET
+	l.ori	r4, r0, 0
+	l.ori	r3, r0, SIG_BLOCK
+	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
+	/* Do the syscall.  */
+	l.sys	1
+	 l.nop
+
+	/* if -4096 < ret < 0 holds, it's an error */
+	l.sfgeui r11, 0xf001
+	l.bf	1f
+	 l.nop
+
+	/* Same as setcontext.  */
+
+	/* Restore signal mask.  */
+	/* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG8) */
+	l.ori	r6, r0, _NSIG8
+	l.ori	r5, r0, 0
+	l.addi	r4, r30, __CONTEXT_SIGMASK_OFFSET
+	l.ori	r3, r0, SIG_SETMASK
+	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
+	/* Do the syscall.  */
+	l.sys 1
+	 l.nop
+
+	/* if -4096 < ret < 0 holds, it's an error */
+	l.sfgeui r11, 0xf001
+	l.bf	1f
+	 l.nop
+
+#ifdef __CONTEXT_ENABLE_FPCSR
+# ifdef __or1k_hard_float__
+	/* Restore the floating point state.  */
+	l.lwz	r28, (MCONTEXT_FPCSR)(r30)
+	l.mtspr	r0, r28, 20
+# endif /* __or1k_hard_float__ */
+#endif /* __CONTEXT_ENABLE_FPCSR */
+
+	/* Restore argument registers, for the makecontext case.  */
+	l.lwz	r3, (UCONTEXT_MCONTEXT +  3*4)(r30)
+	l.lwz	r4, (UCONTEXT_MCONTEXT +  4*4)(r30)
+	l.lwz	r5, (UCONTEXT_MCONTEXT +  5*4)(r30)
+	l.lwz	r6, (UCONTEXT_MCONTEXT +  6*4)(r30)
+	l.lwz	r7, (UCONTEXT_MCONTEXT +  7*4)(r30)
+	l.lwz	r8, (UCONTEXT_MCONTEXT +  8*4)(r30)
+
+	/* Restore registers stored in getcontext.  */
+	l.lwz	r1,  (UCONTEXT_MCONTEXT +  1*4)(r30)
+	l.lwz	r2,  (UCONTEXT_MCONTEXT +  2*4)(r30)
+	l.lwz	r9,  (UCONTEXT_MCONTEXT +  9*4)(r30)
+	l.lwz	r10, (UCONTEXT_MCONTEXT + 10*4)(r30)
+	l.lwz	r11, (UCONTEXT_MCONTEXT + 11*4)(r30)
+	l.lwz	r14, (UCONTEXT_MCONTEXT + 14*4)(r30)
+	l.lwz	r16, (UCONTEXT_MCONTEXT + 16*4)(r30)
+	l.lwz	r18, (UCONTEXT_MCONTEXT + 18*4)(r30)
+	l.lwz	r20, (UCONTEXT_MCONTEXT + 20*4)(r30)
+	l.lwz	r22, (UCONTEXT_MCONTEXT + 22*4)(r30)
+	l.lwz	r24, (UCONTEXT_MCONTEXT + 24*4)(r30)
+	l.lwz	r26, (UCONTEXT_MCONTEXT + 26*4)(r30)
+	l.lwz	r28, (UCONTEXT_MCONTEXT + 28*4)(r30)
+	l.lwz	r30, (UCONTEXT_MCONTEXT + 30*4)(r30)
+
+	l.jr	r11
+	 l.ori	r11, r0, 0
+
+1:	l.j	__syscall_error
+	 l.ori	r3, r11, 0
+
+END (__CONTEXT_FUNC_NAME)
diff --git a/sysdeps/unix/sysv/linux/or1k/swapcontext.S b/sysdeps/unix/sysv/linux/or1k/swapcontext.S
index d09651a5b2..861c1e26ba 100644
--- a/sysdeps/unix/sysv/linux/or1k/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/or1k/swapcontext.S
@@ -16,101 +16,36 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
+#include <shlib-compat.h>
 #include <sysdep.h>
 #include "ucontext_i.h"
 
-/* int swapcontext (ucontext_t *oucp, const ucontext_t *ucp) */
-	.text
-ENTRY(__swapcontext)
+#define __CONTEXT_FUNC_NAME __swapcontext
+#define __CONTEXT_ENABLE_FPCSR 1
+#define __CONTEXT_SIGMASK_OFFSET UCONTEXT_SIGMASK
 
-	/* Same as getcontext.  */
-	/* Store r1, the stack pointer.  */
-	l.sw	(UCONTEXT_MCONTEXT +  1*4)(r3), r1
-	/* Store r2, the frame pointer.  */
-	l.sw	(UCONTEXT_MCONTEXT +  2*4)(r3), r2
-	/* Store r9, the link register.  */
-	l.sw	(UCONTEXT_MCONTEXT +  9*4)(r3), r9
-	/* Store r9 to reg[11] too, as we need two links for makecontext.  */
-	l.sw	(UCONTEXT_MCONTEXT + 11*4)(r3), r9
-	/* Store r10, the TLS register.  */
-	l.sw	(UCONTEXT_MCONTEXT + 10*4)(r3), r10
-	/* Store r14-r30 even, callee saved registers.  */
-	l.sw	(UCONTEXT_MCONTEXT + 14*4)(r3), r14
-	l.sw	(UCONTEXT_MCONTEXT + 16*4)(r3), r16
-	l.sw	(UCONTEXT_MCONTEXT + 18*4)(r3), r18
-	l.sw	(UCONTEXT_MCONTEXT + 20*4)(r3), r20
-	l.sw	(UCONTEXT_MCONTEXT + 22*4)(r3), r22
-	l.sw	(UCONTEXT_MCONTEXT + 24*4)(r3), r24
-	l.sw	(UCONTEXT_MCONTEXT + 26*4)(r3), r26
-	l.sw	(UCONTEXT_MCONTEXT + 28*4)(r3), r28
-	l.sw	(UCONTEXT_MCONTEXT + 30*4)(r3), r30
+#include "swapcontext-common.S"
 
-	/* Store ucp to non-argument syscall preserved register.  */
-	l.ori	r30, r4, 0
+versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_40)
 
-	/* Get signal mask.  */
-	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
-	l.ori	r6, r0, _NSIG8
-	l.addi	r5, r3, UCONTEXT_SIGMASK
-	l.ori	r4, r0, 0
-	l.ori	r3, r0, SIG_BLOCK
-	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
-	/* Do the syscall.  */
-	l.sys	1
-	 l.nop
+#if SHLIB_COMPAT (libc, GLIBC_2_35, GLIBC_2_40)
 
-	/* if -4096 < ret < 0 holds, it's an error */
-	l.sfgeui r11, 0xf001
-	l.bf	1f
-	 l.nop
+/* Define a compat version of swapcontext for glibc's before the fpcsr
+   field was added to mcontext_t.  The offset sigmask changed with this
+   introduction, the change was done because glibc's definition of
+   ucontext_t was initially defined incompatible with the Linux
+   definition of ucontext_t.  We keep the compatability definition to
+   allow getcontext, setcontext and swapcontext to work in older
+   binaries.  */
 
-	/* Same as setcontext.  */
+# undef __CONTEXT_FUNC_NAME
+# undef __CONTEXT_ENABLE_FPCSR
+# undef __CONTEXT_SIGMASK_OFFSET
+# define __CONTEXT_FUNC_NAME __swapcontext_nofpcsr
+# define __CONTEXT_SIGMASK_OFFSET (UCONTEXT_SIGMASK - 4)
 
-	/* Restore signal mask.  */
-	/* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG8) */
-	l.ori	r6, r0, _NSIG8
-	l.ori	r5, r0, 0
-	l.addi	r4, r30, UCONTEXT_SIGMASK
-	l.ori	r3, r0, SIG_SETMASK
-	l.ori	r11, r0, SYS_ify (rt_sigprocmask)
-	/* Do the syscall.  */
-	l.sys 1
-	 l.nop
+# include "swapcontext-common.S"
 
-	/* if -4096 < ret < 0 holds, it's an error */
-	l.sfgeui r11, 0xf001
-	l.bf	1f
-	 l.nop
+compat_symbol (libc, __swapcontext_nofpcsr, swapcontext, GLIBC_2_35)
 
-	/* Restore argument registers, for the makecontext case.  */
-	l.lwz	r3, (UCONTEXT_MCONTEXT +  3*4)(r30)
-	l.lwz	r4, (UCONTEXT_MCONTEXT +  4*4)(r30)
-	l.lwz	r5, (UCONTEXT_MCONTEXT +  5*4)(r30)
-	l.lwz	r6, (UCONTEXT_MCONTEXT +  6*4)(r30)
-	l.lwz	r7, (UCONTEXT_MCONTEXT +  7*4)(r30)
-	l.lwz	r8, (UCONTEXT_MCONTEXT +  8*4)(r30)
-
-	/* Restore registers stored in getcontext.  */
-	l.lwz	r1,  (UCONTEXT_MCONTEXT +  1*4)(r30)
-	l.lwz	r2,  (UCONTEXT_MCONTEXT +  2*4)(r30)
-	l.lwz	r9,  (UCONTEXT_MCONTEXT +  9*4)(r30)
-	l.lwz	r10, (UCONTEXT_MCONTEXT + 10*4)(r30)
-	l.lwz	r11, (UCONTEXT_MCONTEXT + 11*4)(r30)
-	l.lwz	r14, (UCONTEXT_MCONTEXT + 14*4)(r30)
-	l.lwz	r16, (UCONTEXT_MCONTEXT + 16*4)(r30)
-	l.lwz	r18, (UCONTEXT_MCONTEXT + 18*4)(r30)
-	l.lwz	r20, (UCONTEXT_MCONTEXT + 20*4)(r30)
-	l.lwz	r22, (UCONTEXT_MCONTEXT + 22*4)(r30)
-	l.lwz	r24, (UCONTEXT_MCONTEXT + 24*4)(r30)
-	l.lwz	r26, (UCONTEXT_MCONTEXT + 26*4)(r30)
-	l.lwz	r28, (UCONTEXT_MCONTEXT + 28*4)(r30)
-	l.lwz	r30, (UCONTEXT_MCONTEXT + 30*4)(r30)
-
-	l.jr	r11
-	 l.ori	r11, r0, 0
-
-1:	l.j	__syscall_error
-	 l.ori	r3, r11, 0
-
-END (__swapcontext)
-weak_alias (__swapcontext, swapcontext)
+#endif
diff --git a/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h b/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h
index b17e919154..1b428592ee 100644
--- a/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h
@@ -38,6 +38,7 @@ typedef struct
     unsigned long int __gprs[__NGREG];
     unsigned long int __pc;
     unsigned long int __sr;
+    unsigned long int __fpcsr;
   } mcontext_t;
 
 /* Userlevel context.  */
diff --git a/sysdeps/unix/sysv/linux/or1k/ucontext_i.sym b/sysdeps/unix/sysv/linux/or1k/ucontext_i.sym
index a8d4db080f..45cd72527d 100644
--- a/sysdeps/unix/sysv/linux/or1k/ucontext_i.sym
+++ b/sysdeps/unix/sysv/linux/or1k/ucontext_i.sym
@@ -13,6 +13,7 @@ _NSIG8				(_NSIG / 8)
 -- Offsets of the fields in the ucontext_t structure.
 #define ucontext(member)	offsetof (ucontext_t, member)
 #define stack(member)		ucontext (uc_stack.member)
+#define mcontext(member)	ucontext (uc_mcontext.member)
 
 UCONTEXT_LINK			ucontext (uc_link)
 UCONTEXT_STACK			ucontext (uc_stack)
@@ -23,4 +24,6 @@ STACK_SP			stack (ss_sp)
 STACK_SIZE			stack (ss_size)
 STACK_FLAGS			stack (ss_flags)
 
+MCONTEXT_FPCSR			mcontext (__fpcsr)
+
 UCONTEXT_SIZE			sizeof (ucontext_t)
diff --git a/sysdeps/unix/sysv/linux/pidfd_getpid.c b/sysdeps/unix/sysv/linux/pidfd_getpid.c
index 8567b413dd..6967477fab 100644
--- a/sysdeps/unix/sysv/linux/pidfd_getpid.c
+++ b/sysdeps/unix/sysv/linux/pidfd_getpid.c
@@ -74,8 +74,10 @@ parse_fdinfo (const char *l, void *arg)
 
       /* Ignore invalid large values.  */
       if (INT_MULTIPLY_WRAPV (10, n, &n)
-          || INT_ADD_WRAPV (n, *l++ - '0', &n))
+          || INT_ADD_WRAPV (n, *l - '0', &n))
         return -1;
+
+      l++;
     }
 
   /* -1 indicates that the process is terminated.  */
@@ -105,7 +107,7 @@ pidfd_getpid (int fd)
   *_fitoa_word (fd, p, 10, 0) = '\0';
 
   struct parse_fdinfo_t fdinfo = { .found = false, .pid = -1 };
-  if (!procutils_read_file (fdinfoname, parse_fdinfo, &fdinfo))
+  if (!__libc_procutils_read_file (fdinfoname, parse_fdinfo, &fdinfo))
     /* The fdinfo contains an invalid 'Pid:' value.  */
     return INLINE_SYSCALL_ERROR_RETURN_VALUE (EBADF);
 
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
index 4f88e0af9c..564eb87d4b 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
@@ -995,3 +995,9 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
index edc26140dc..a57eedb779 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
@@ -994,3 +994,9 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist
index 0a8a1433d7..7564069a37 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist
@@ -988,3 +988,9 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone3.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone3.S
index 6fdb4a6073..900c354c9c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone3.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone3.S
@@ -154,4 +154,3 @@ L(parent):
 PSEUDO_END (__clone3)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist
index 5174d20032..b02a7115af 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist
@@ -1321,3 +1321,12 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 __log2p1ieee128 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/procutils.c b/sysdeps/unix/sysv/linux/procutils.c
index 25666ec0cb..86d3d37329 100644
--- a/sysdeps/unix/sysv/linux/procutils.c
+++ b/sysdeps/unix/sysv/linux/procutils.c
@@ -71,8 +71,9 @@ next_line (char **r, int fd, char *const buffer, char **cp, char **re,
 }
 
 bool
-procutils_read_file (const char *filename, procutils_closure_t closure,
-		     void *arg)
+__libc_procutils_read_file (const char *filename,
+			    procutils_closure_t closure,
+			    void *arg)
 {
   enum { buffer_size = PROCUTILS_MAX_LINE_LEN };
   char buffer[buffer_size];
diff --git a/sysdeps/unix/sysv/linux/procutils.h b/sysdeps/unix/sysv/linux/procutils.h
index 73ef3e5f5b..acf1ec587a 100644
--- a/sysdeps/unix/sysv/linux/procutils.h
+++ b/sysdeps/unix/sysv/linux/procutils.h
@@ -37,7 +37,8 @@ typedef int (*procutils_closure_t) (const char *line, void *arg);
 
    It returns true in case the file is fully read or false if CLOSURE
    returns a value diferent than 0.  */
-bool procutils_read_file (const char *filename, procutils_closure_t closure,
-			  void *arg) attribute_hidden;
+bool __libc_procutils_read_file (const char *filename,
+				 procutils_closure_t closure,
+				 void *arg) attribute_hidden;
 
 #endif
diff --git a/sysdeps/unix/sysv/linux/riscv/clone3.S b/sysdeps/unix/sysv/linux/riscv/clone3.S
index 29264be054..c81ee2ab51 100644
--- a/sysdeps/unix/sysv/linux/riscv/clone3.S
+++ b/sysdeps/unix/sysv/linux/riscv/clone3.S
@@ -76,4 +76,3 @@ L(thread_start):
 END(__thread_start_clone3)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libm.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libm.abilist
index 45ca5c677a..7bf0bd7c7a 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/libm.abilist
@@ -1028,3 +1028,11 @@ GLIBC_2.35 fminimumf64x F
 GLIBC_2.35 fminimuml F
 GLIBC_2.35 fsqrt F
 GLIBC_2.35 fsqrtl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
index 4838edf991..c22d9bb7c6 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
@@ -1125,3 +1125,11 @@ GLIBC_2.35 fminimumf64x F
 GLIBC_2.35 fminimuml F
 GLIBC_2.35 fsqrt F
 GLIBC_2.35 fsqrtl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/Makefile b/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
index 6b6d59b7dd..2a5b4fbb6f 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
@@ -3,6 +3,7 @@ default-abi := 32
 
 ifeq ($(subdir),login)
 sysdep_routines += utmp32 utmpx32 login32
+shared-only-routines += utmp32 utmpx32 login32
 endif
 
 ifeq ($(subdir),misc)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/clone3.S b/sysdeps/unix/sysv/linux/s390/s390-32/clone3.S
index d344c2cf36..1ea633aabb 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/clone3.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/clone3.S
@@ -75,4 +75,3 @@ thread_start:
 	ASM_SIZE_DIRECTIVE (thread_start)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index 5ff11fb54f..2fb712ec71 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
@@ -1252,3 +1252,11 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/clone3.S b/sysdeps/unix/sysv/linux/s390/s390-64/clone3.S
index ca382d903c..70ae7f1532 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/clone3.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/clone3.S
@@ -75,4 +75,3 @@ thread_start:
 	ASM_SIZE_DIRECTIVE (thread_start)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
index 0e246c2c54..40489589a7 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
@@ -1252,3 +1252,11 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/sh/be/libm.abilist b/sysdeps/unix/sysv/linux/sh/be/libm.abilist
index 7b43a866e2..a5363e90d6 100644
--- a/sysdeps/unix/sysv/linux/sh/be/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
 GLIBC_2.4 exp2l F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/sh/le/libm.abilist b/sysdeps/unix/sysv/linux/sh/le/libm.abilist
index 7b43a866e2..a5363e90d6 100644
--- a/sysdeps/unix/sysv/linux/sh/le/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libm.abilist
@@ -848,3 +848,9 @@ GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
 GLIBC_2.4 exp2l F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
index e3dcf3d4e7..9bda9bdeb5 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
@@ -1259,3 +1259,11 @@ GLIBC_2.4 truncl F
 GLIBC_2.4 y0l F
 GLIBC_2.4 y1l F
 GLIBC_2.4 ynl F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
index 20fef20c8b..61d2aa05a9 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
@@ -1149,3 +1149,11 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
index fc8dce45c8..45e546fa44 100644
--- a/sysdeps/unix/sysv/linux/sys/epoll.h
+++ b/sysdeps/unix/sysv/linux/sys/epoll.h
@@ -19,6 +19,7 @@
 #define	_SYS_EPOLL_H	1
 
 #include <stdint.h>
+#include <sys/ioctl.h>
 #include <sys/types.h>
 
 #include <bits/types/sigset_t.h>
@@ -87,6 +88,19 @@ struct epoll_event
   epoll_data_t data;	/* User data variable */
 } __EPOLL_PACKED;
 
+struct epoll_params
+{
+  uint32_t busy_poll_usecs;
+  uint16_t busy_poll_budget;
+  uint8_t prefer_busy_poll;
+
+  /* pad the struct to a multiple of 64bits */
+  uint8_t __pad;
+};
+
+#define EPOLL_IOC_TYPE 0x8A
+#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params)
+#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params)
 
 __BEGIN_DECLS
 
diff --git a/sysdeps/unix/sysv/linux/sys/pidfd.h b/sysdeps/unix/sysv/linux/sys/pidfd.h
index 1078322062..9f88d297e8 100644
--- a/sysdeps/unix/sysv/linux/sys/pidfd.h
+++ b/sysdeps/unix/sysv/linux/sys/pidfd.h
@@ -22,12 +22,14 @@
 #include <bits/types/siginfo_t.h>
 
 #define PIDFD_NONBLOCK O_NONBLOCK
+#define PIDFD_THREAD O_EXCL
 
-/* Returns a file descriptor that refers to the process PID.  The
-   close-on-exec is set on the file descriptor.
+#define PIDFD_SIGNAL_THREAD (1UL << 0)
+#define PIDFD_SIGNAL_THREAD_GROUP (1UL << 1)
+#define PIDFD_SIGNAL_PROCESS_GROUP (1UL << 2)
 
-   The FLAGS argument is reserved for future use, it must be specified
-   as 0.  */
+/* Returns a file descriptor that refers to the process PID.  The
+   close-on-exec is set on the file descriptor.  */
 extern int pidfd_open (__pid_t __pid, unsigned int __flags) __THROW;
 
 /* Duplicates an existing file descriptor TARGETFD in the process referred
@@ -39,10 +41,7 @@ extern int pidfd_getfd (int __pidfd, int __targetfd,
 			unsigned int __flags) __THROW;
 
 /* Sends the signal SIG to the target process referred by the PIDFD.  If
-   INFO points to a siginfo_t buffer, it will be populated.
-
-   The FLAGS argument is reserved for future use, it must be specified
-   as 0.  */
+   INFO points to a siginfo_t buffer, it will be populated.  */
 extern int pidfd_send_signal (int __pidfd, int __sig, siginfo_t *__info,
 			      unsigned int __flags) __THROW;
 
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 6557bcfde4..672d39eaad 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
 # This file can list all potential system calls.  The names are only
 # used if the installed kernel headers also provide them.
 
-# The list of system calls is current as of Linux 6.8.
-kernel 6.8
+# The list of system calls is current as of Linux 6.9.
+kernel 6.9
 
 FAST_atomic_update
 FAST_cmpxchg
diff --git a/sysdeps/unix/sysv/linux/timespec_get.c b/sysdeps/unix/sysv/linux/timespec_get.c
index c6e5e66289..778d1e3354 100644
--- a/sysdeps/unix/sysv/linux/timespec_get.c
+++ b/sysdeps/unix/sysv/linux/timespec_get.c
@@ -5,7 +5,7 @@
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
-   version 2.1 of the License.
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/sysdeps/unix/sysv/linux/timespec_getres.c b/sysdeps/unix/sysv/linux/timespec_getres.c
index 5acebe2a2c..2eef9e512c 100644
--- a/sysdeps/unix/sysv/linux/timespec_getres.c
+++ b/sysdeps/unix/sysv/linux/timespec_getres.c
@@ -5,7 +5,7 @@
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
-   version 2.1 of the License.
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/sysdeps/unix/sysv/linux/tst-epoll-ioctls.c b/sysdeps/unix/sysv/linux/tst-epoll-ioctls.c
new file mode 100644
index 0000000000..618ecc4e86
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-epoll-ioctls.c
@@ -0,0 +1,92 @@
+/* Basic tests for Linux epoll ioctls.
+   Copyright (C) 2022-2024 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <intprops.h>
+#include <stdlib.h>
+#include <string.h>
+#include <support/check.h>
+#include <support/process_state.h>
+#include <support/support.h>
+#include <support/test-driver.h>
+#include <support/xsignal.h>
+#include <support/xunistd.h>
+#include <sys/ioctl.h>
+#include <sys/epoll.h>
+
+static void
+test_epoll_ioctl (void)
+{
+  int efd = epoll_create1 (0);
+  TEST_VERIFY_EXIT (efd != -1);
+
+  struct epoll_params params;
+
+  TEST_COMPARE (ioctl (efd, EPIOCGPARAMS, &params), 0);
+
+  /* parameters are all 0 by default */
+  TEST_COMPARE (params.busy_poll_usecs, 0);
+  TEST_COMPARE (params.busy_poll_budget, 0);
+  TEST_COMPARE (params.prefer_busy_poll, 0);
+  TEST_COMPARE (params.__pad, 0);
+
+  /* set custom parameters */
+  params.busy_poll_usecs = 40;
+  params.busy_poll_budget = 8;
+  params.prefer_busy_poll = 1;
+  params.__pad = 0;
+
+  TEST_COMPARE (ioctl (efd, EPIOCSPARAMS, &params), 0);
+
+  memset (&params, 0, sizeof (params));
+
+  TEST_COMPARE (ioctl (efd, EPIOCGPARAMS, &params), 0);
+
+  /* check custom values were retrieved after being set */
+  TEST_COMPARE (params.busy_poll_usecs, 40);
+  TEST_COMPARE (params.busy_poll_budget, 8);
+  TEST_COMPARE (params.prefer_busy_poll, 1);
+  TEST_COMPARE (params.__pad, 0);
+
+  xclose (efd);
+}
+
+static bool
+ioctl_supported (void)
+{
+  int efd = epoll_create1 (0);
+  TEST_VERIFY_EXIT (efd != -1);
+
+  struct epoll_params params;
+  int r = ioctl (efd, EPIOCGPARAMS, &params);
+  xclose (efd);
+
+  return (r == 0);
+}
+
+static int
+do_test (void)
+{
+  if (ioctl_supported ())
+    test_epoll_ioctl ();
+  else
+    return EXIT_UNSUPPORTED;
+
+  return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/sysdeps/unix/sysv/linux/tst-mman-consts.py b/sysdeps/unix/sysv/linux/tst-mman-consts.py
index 56c0cf3e22..4a8f4e8919 100644
--- a/sysdeps/unix/sysv/linux/tst-mman-consts.py
+++ b/sysdeps/unix/sysv/linux/tst-mman-consts.py
@@ -33,7 +33,7 @@ def main():
                         help='C compiler (including options) to use')
     args = parser.parse_args()
     linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
-    linux_version_glibc = (6, 8)
+    linux_version_glibc = (6, 9)
     sys.exit(glibcextract.compare_macro_consts(
         '#define _GNU_SOURCE 1\n'
         '#include <sys/mman.h>\n',
diff --git a/sysdeps/unix/sysv/linux/tst-mount-consts.py b/sysdeps/unix/sysv/linux/tst-mount-consts.py
index 8613db96d7..c4a67221c1 100755
--- a/sysdeps/unix/sysv/linux/tst-mount-consts.py
+++ b/sysdeps/unix/sysv/linux/tst-mount-consts.py
@@ -39,10 +39,10 @@ def main():
         sys.exit (77)
 
     linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
-    # Constants in glibc were updated to match Linux v6.8.  When glibc
+    # Constants in glibc were updated to match Linux v6.9.  When glibc
     # constants are updated this value should be updated to match the
     # released kernel version from which the constants were taken.
-    linux_version_glibc = (6, 8)
+    linux_version_glibc = (6, 9)
     def check(cte, exclude=None):
         return glibcextract.compare_macro_consts(
                 '#include <sys/mount.h>\n',
diff --git a/sysdeps/unix/sysv/linux/tst-pidfd-consts.py b/sysdeps/unix/sysv/linux/tst-pidfd-consts.py
index 96875ac266..6f05291949 100644
--- a/sysdeps/unix/sysv/linux/tst-pidfd-consts.py
+++ b/sysdeps/unix/sysv/linux/tst-pidfd-consts.py
@@ -39,7 +39,7 @@ def main():
         sys.exit (77)
 
     linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
-    linux_version_glibc = (6, 8)
+    linux_version_glibc = (6, 9)
     sys.exit(glibcextract.compare_macro_consts(
                 '#include <sys/pidfd.h>\n',
                 '#include <asm/fcntl.h>\n'
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index c1c5c76e26..bbf646fe7f 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -1182,3 +1182,11 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F
diff --git a/sysdeps/unix/sysv/linux/x86_64/clone3.S b/sysdeps/unix/sysv/linux/x86_64/clone3.S
index 5a2d42234e..4cc19e066c 100644
--- a/sysdeps/unix/sysv/linux/x86_64/clone3.S
+++ b/sysdeps/unix/sysv/linux/x86_64/clone3.S
@@ -86,4 +86,3 @@ L(thread_start):
 PSEUDO_END (__clone3)
 
 libc_hidden_def (__clone3)
-weak_alias (__clone3, clone3)
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index fac219d45a..7c7b884dde 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -1182,3 +1182,11 @@ GLIBC_2.35 hypotf F
 GLIBC_2.38 fmod F
 GLIBC_2.38 fmodf F
 GLIBC_2.39 exp10 F
+GLIBC_2.40 log2p1 F
+GLIBC_2.40 log2p1f F
+GLIBC_2.40 log2p1f128 F
+GLIBC_2.40 log2p1f32 F
+GLIBC_2.40 log2p1f32x F
+GLIBC_2.40 log2p1f64 F
+GLIBC_2.40 log2p1f64x F
+GLIBC_2.40 log2p1l F