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-rw-r--r--sysdeps/unix/sysv/linux/aarch64/arch-syscall.h1
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/cpu-features.c1
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/libc.abilist10
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/libm.abilist16
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/libmvec.abilist20
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/makecontext.c4
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/setcontext.S27
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/swapcontext.S2
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/uw-sigframe.h78
9 files changed, 137 insertions, 22 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
index 89aced0..ba4a461 100644
--- a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
@@ -175,6 +175,7 @@
#define __NR_nfsservctl 42
#define __NR_open_by_handle_at 265
#define __NR_open_tree 428
+#define __NR_open_tree_attr 467
#define __NR_openat 56
#define __NR_openat2 437
#define __NR_perf_event_open 241
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
index 6d63c8a..1acc82d 100644
--- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
+++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
@@ -23,6 +23,7 @@
#include <sys/prctl.h>
#include <sys/utsname.h>
#include <dl-tunables-parse.h>
+#include <dl-symbol-redir-ifunc.h>
#define DCZID_DZP_MASK (1 << 4)
#define DCZID_BS_MASK (0xf)
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index aa6bf48..a22e651 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2752,6 +2752,16 @@ GLIBC_2.41 sched_getattr F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index 4fdeb0d..bb8114b 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -1245,6 +1245,14 @@ GLIBC_2.41 tanpif32x F
GLIBC_2.41 tanpif64 F
GLIBC_2.41 tanpif64x F
GLIBC_2.41 tanpil F
+GLIBC_2.42 compoundn F
+GLIBC_2.42 compoundnf F
+GLIBC_2.42 compoundnf128 F
+GLIBC_2.42 compoundnf32 F
+GLIBC_2.42 compoundnf32x F
+GLIBC_2.42 compoundnf64 F
+GLIBC_2.42 compoundnf64x F
+GLIBC_2.42 compoundnl F
GLIBC_2.42 pown F
GLIBC_2.42 pownf F
GLIBC_2.42 pownf128 F
@@ -1261,6 +1269,14 @@ GLIBC_2.42 powrf32x F
GLIBC_2.42 powrf64 F
GLIBC_2.42 powrf64x F
GLIBC_2.42 powrl F
+GLIBC_2.42 rootn F
+GLIBC_2.42 rootnf F
+GLIBC_2.42 rootnf128 F
+GLIBC_2.42 rootnf32 F
+GLIBC_2.42 rootnf32x F
+GLIBC_2.42 rootnf64 F
+GLIBC_2.42 rootnf64x F
+GLIBC_2.42 rootnl F
GLIBC_2.42 rsqrt F
GLIBC_2.42 rsqrtf F
GLIBC_2.42 rsqrtf128 F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist b/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist
index a56ce7f..f7f72b6 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libmvec.abilist
@@ -148,3 +148,23 @@ GLIBC_2.41 _ZGVsMxv_sinpi F
GLIBC_2.41 _ZGVsMxv_sinpif F
GLIBC_2.41 _ZGVsMxv_tanpi F
GLIBC_2.41 _ZGVsMxv_tanpif F
+GLIBC_2.42 _ZGVnN2v_acospi F
+GLIBC_2.42 _ZGVnN2v_acospif F
+GLIBC_2.42 _ZGVnN2v_asinpi F
+GLIBC_2.42 _ZGVnN2v_asinpif F
+GLIBC_2.42 _ZGVnN2v_atanpi F
+GLIBC_2.42 _ZGVnN2v_atanpif F
+GLIBC_2.42 _ZGVnN2vv_atan2pi F
+GLIBC_2.42 _ZGVnN2vv_atan2pif F
+GLIBC_2.42 _ZGVnN4v_acospif F
+GLIBC_2.42 _ZGVnN4v_asinpif F
+GLIBC_2.42 _ZGVnN4v_atanpif F
+GLIBC_2.42 _ZGVnN4vv_atan2pif F
+GLIBC_2.42 _ZGVsMxv_acospi F
+GLIBC_2.42 _ZGVsMxv_acospif F
+GLIBC_2.42 _ZGVsMxv_asinpi F
+GLIBC_2.42 _ZGVsMxv_asinpif F
+GLIBC_2.42 _ZGVsMxv_atanpi F
+GLIBC_2.42 _ZGVsMxv_atanpif F
+GLIBC_2.42 _ZGVsMxvv_atan2pi F
+GLIBC_2.42 _ZGVsMxvv_atan2pif F
diff --git a/sysdeps/unix/sysv/linux/aarch64/makecontext.c b/sysdeps/unix/sysv/linux/aarch64/makecontext.c
index a2eab9e..4485723 100644
--- a/sysdeps/unix/sysv/linux/aarch64/makecontext.c
+++ b/sysdeps/unix/sysv/linux/aarch64/makecontext.c
@@ -36,9 +36,7 @@ static struct _aarch64_ctx *extension (void *p)
static void *
alloc_makecontext_gcs (size_t stack_size)
{
- void *base;
- size_t size;
- void *gcsp = __alloc_gcs (stack_size, &base, &size);
+ void *gcsp = __alloc_gcs (stack_size, NULL);
if (gcsp == NULL)
/* ENOSYS, bad size or OOM. */
abort ();
diff --git a/sysdeps/unix/sysv/linux/aarch64/setcontext.S b/sysdeps/unix/sysv/linux/aarch64/setcontext.S
index 022a263..d9716f0 100644
--- a/sysdeps/unix/sysv/linux/aarch64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/aarch64/setcontext.S
@@ -48,25 +48,16 @@ ENTRY (__setcontext)
cbz x0, 1f
b C_SYMBOL_NAME (__syscall_error)
1:
- /* Disable ZA of SME. */
-#if HAVE_AARCH64_PAC_RET
- PACIASP
- cfi_window_save
-#endif
- stp x29, x30, [sp, -16]!
- cfi_adjust_cfa_offset (16)
- cfi_rel_offset (x29, 0)
- cfi_rel_offset (x30, 8)
- mov x29, sp
+ /* Clear ZA state of SME. */
+ /* The calling convention of __libc_arm_za_disable allows to do
+ this thus allowing to avoid saving to and reading from stack.
+ As a result we also don't need to sign the return address and
+ check it after returning because it is not stored to stack. */
+ mov x13, x30
+ cfi_register (x30, x13)
bl __libc_arm_za_disable
- ldp x29, x30, [sp], 16
- cfi_adjust_cfa_offset (-16)
- cfi_restore (x29)
- cfi_restore (x30)
-#if HAVE_AARCH64_PAC_RET
- AUTIASP
- cfi_window_save
-#endif
+ mov x30, x13
+ cfi_register (x13, x30)
/* Restore the general purpose registers. */
mov x0, x9
cfi_def_cfa (x0, 0)
diff --git a/sysdeps/unix/sysv/linux/aarch64/swapcontext.S b/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
index cc41253..58ddb95 100644
--- a/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
@@ -119,7 +119,7 @@ L(gcs_done):
2:
/* The oucp context is restored here via an indirect branch,
x1 must be restored too which has the real return address. */
- BTI_J
+ bti j
mov x30, x1
RET
PSEUDO_END (__swapcontext)
diff --git a/sysdeps/unix/sysv/linux/aarch64/uw-sigframe.h b/sysdeps/unix/sysv/linux/aarch64/uw-sigframe.h
new file mode 100644
index 0000000..9d5d345
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/uw-sigframe.h
@@ -0,0 +1,78 @@
+/* Signal frame backtracing support for SFrame on AARCH64.
+ Copyright (C) 2025 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 code is inspired from libgcc's MD_FALLBACK_FRAME_STATE_FOR
+ implementation. See libgcc/config/aarch64/linux-unwind.h */
+
+#include <signal.h>
+#include <sys/ucontext.h>
+#include <kernel_rt_sigframe.h>
+
+#ifdef __AARCH64EL__
+#define MOVZ_X8_8B 0xd2801168
+#define SVC_0 0xd4000001
+#else
+#define MOVZ_X8_8B 0x681180d2
+#define SVC_0 0x010000d4
+#endif
+
+#define MD_DECODE_SIGNAL_FRAME aarch64_decode_signal_frame
+
+static _Unwind_Reason_Code
+aarch64_decode_signal_frame (frame *frame)
+{
+ unsigned int *pc = (unsigned int *) frame->pc;
+ mcontext_t *mt;
+ struct kernel_rt_sigframe *rt_;
+
+ if ((frame->pc & 3) != 0)
+ return _URC_END_OF_STACK;
+
+ /* A signal frame will have a return address pointing to
+ __kernel_rt_sigreturn. This code is hardwired as:
+
+ 0xd2801168 movz x8, #0x8b
+ 0xd4000001 svc 0x0
+ */
+ if (pc[0] != MOVZ_X8_8B || pc[1] != SVC_0)
+ return _URC_END_OF_STACK;
+
+ rt_ = (struct kernel_rt_sigframe *) frame->sp;
+ mt = &rt_->uc.uc_mcontext;
+
+ /* Frame pointer register number. */
+#define FP_REGNUM 30
+
+ frame->pc = (_Unwind_Ptr) mt->pc;
+ frame->sp = (_Unwind_Ptr) mt->sp;
+ frame->fp = (_Unwind_Ptr) mt->regs[FP_REGNUM];
+ return _URC_NO_REASON;
+}
+
+#define MD_DETECT_OUTERMOST_FRAME aarch64_detect_outermost_frame
+
+static _Unwind_Reason_Code
+aarch64_detect_outermost_frame (frame *frame)
+{
+ /* Initial frame has LR and FP set to zero. We track only FP. */
+ if (frame->fp == 0)
+ return _URC_END_OF_STACK;
+
+ return _URC_NO_REASON;
+}
generated by cgit v1.1 at 2025-08-09 13:53:27 +0000