357 lines
12 KiB
Diff
357 lines
12 KiB
Diff
From 20affa072418646ada75247771c28633ac47688c Mon Sep 17 00:00:00 2001
|
|
From: swcompiler <lc@wxiat.com>
|
|
Date: Fri, 29 Nov 2024 13:55:34 +0800
|
|
Subject: [PATCH 04/23] Sw64: Thread-Local Storage Support
|
|
|
|
---
|
|
sysdeps/sw_64/dl-tls.h | 26 ++++++++
|
|
sysdeps/sw_64/libc-tls.c | 32 ++++++++++
|
|
sysdeps/sw_64/nptl/tls.h | 108 ++++++++++++++++++++++++++++++++++
|
|
sysdeps/sw_64/stackinfo.h | 33 +++++++++++
|
|
sysdeps/sw_64/sw8a/nptl/tls.h | 106 +++++++++++++++++++++++++++++++++
|
|
5 files changed, 305 insertions(+)
|
|
create mode 100644 sysdeps/sw_64/dl-tls.h
|
|
create mode 100644 sysdeps/sw_64/libc-tls.c
|
|
create mode 100644 sysdeps/sw_64/nptl/tls.h
|
|
create mode 100644 sysdeps/sw_64/stackinfo.h
|
|
create mode 100644 sysdeps/sw_64/sw8a/nptl/tls.h
|
|
|
|
diff --git a/sysdeps/sw_64/dl-tls.h b/sysdeps/sw_64/dl-tls.h
|
|
new file mode 100644
|
|
index 00000000..0795a41a
|
|
--- /dev/null
|
|
+++ b/sysdeps/sw_64/dl-tls.h
|
|
@@ -0,0 +1,26 @@
|
|
+/* Thread-local storage handling in the ELF dynamic linker. Sw_64 version.
|
|
+ Copyright (C) 2002-2023 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
|
|
+ <http://www.gnu.org/licenses/>. */
|
|
+
|
|
+/* Type used for the representation of TLS information in the GOT. */
|
|
+typedef struct
|
|
+{
|
|
+ unsigned long int ti_module;
|
|
+ unsigned long int ti_offset;
|
|
+} tls_index;
|
|
+
|
|
+extern void *__tls_get_addr (tls_index *ti);
|
|
diff --git a/sysdeps/sw_64/libc-tls.c b/sysdeps/sw_64/libc-tls.c
|
|
new file mode 100644
|
|
index 00000000..f268dd08
|
|
--- /dev/null
|
|
+++ b/sysdeps/sw_64/libc-tls.c
|
|
@@ -0,0 +1,32 @@
|
|
+/* Thread-local storage handling in the ELF dynamic linker. Sw_64 version.
|
|
+ Copyright (C) 2003-2023 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
|
|
+ <http://www.gnu.org/licenses/>. */
|
|
+
|
|
+#include <csu/libc-tls.c>
|
|
+#include <dl-tls.h>
|
|
+
|
|
+/* On Sw_64, linker optimizations are not required, so __tls_get_addr
|
|
+ can be called even in statically linked binaries. In this case module
|
|
+ must be always 1 and PT_TLS segment exist in the binary, otherwise it
|
|
+ would not link. */
|
|
+
|
|
+void *
|
|
+__tls_get_addr (tls_index *ti)
|
|
+{
|
|
+ dtv_t *dtv = THREAD_DTV ();
|
|
+ return (char *) dtv[1].pointer.val + ti->ti_offset;
|
|
+}
|
|
diff --git a/sysdeps/sw_64/nptl/tls.h b/sysdeps/sw_64/nptl/tls.h
|
|
new file mode 100644
|
|
index 00000000..8df86916
|
|
--- /dev/null
|
|
+++ b/sysdeps/sw_64/nptl/tls.h
|
|
@@ -0,0 +1,108 @@
|
|
+/* Definition for thread-local data handling. NPTL/Sw_64 version.
|
|
+ Copyright (C) 2003-2023 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/>. */
|
|
+
|
|
+#ifndef _TLS_H
|
|
+#define _TLS_H 1
|
|
+
|
|
+#include <dl-sysdep.h>
|
|
+
|
|
+#ifndef __ASSEMBLER__
|
|
+# include <stdbool.h>
|
|
+# include <stddef.h>
|
|
+# include <stdint.h>
|
|
+# include <dl-dtv.h>
|
|
+
|
|
+/* Get system call information. */
|
|
+# include <sysdep.h>
|
|
+
|
|
+/* The TP points to the start of the thread blocks. */
|
|
+# define TLS_DTV_AT_TP 1
|
|
+# define TLS_TCB_AT_TP 0
|
|
+
|
|
+/* Get the thread descriptor definition. */
|
|
+# include <nptl/descr.h>
|
|
+
|
|
+typedef struct
|
|
+{
|
|
+ dtv_t *dtv;
|
|
+ void *__private;
|
|
+} tcbhead_t;
|
|
+
|
|
+/* This is the size of the initial TCB. */
|
|
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
|
|
+
|
|
+/* This is the size of the TCB. */
|
|
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
|
|
+
|
|
+/* This is the size we need before TCB. */
|
|
+# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
|
|
+
|
|
+/* Install the dtv pointer. The pointer passed is to the element with
|
|
+ index -1 which contain the length. */
|
|
+# define INSTALL_DTV(tcbp, dtvp) (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1)
|
|
+
|
|
+/* Install new dtv for current thread. */
|
|
+# define INSTALL_NEW_DTV(dtv) (THREAD_DTV () = (dtv))
|
|
+
|
|
+/* Return dtv of given thread descriptor. */
|
|
+# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))->dtv)
|
|
+
|
|
+/* Code to initially initialize the thread pointer. This might need
|
|
+ special attention since 'errno' is not yet available and if the
|
|
+ operation can cause a failure 'errno' must not be touched. */
|
|
+# define TLS_INIT_TP(tcbp) \
|
|
+ (__builtin_set_thread_pointer ((void *) (tcbp)), true)
|
|
+
|
|
+/* Value passed to 'clone' for initialization of the thread register. */
|
|
+# define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) + 1
|
|
+
|
|
+/* Return the address of the dtv for the current thread. */
|
|
+# define THREAD_DTV() (((tcbhead_t *) __builtin_thread_pointer ())->dtv)
|
|
+
|
|
+/* Return the thread descriptor for the current thread. */
|
|
+# define THREAD_SELF ((struct pthread *) __builtin_thread_pointer () - 1)
|
|
+
|
|
+/* Magic for libthread_db to know how to do THREAD_SELF. */
|
|
+# define DB_THREAD_SELF REGISTER (64, 64, 32 * 8, -sizeof (struct pthread))
|
|
+
|
|
+# include <tcb-access.h>
|
|
+
|
|
+/* Get and set the global scope generation counter in struct pthread. */
|
|
+# define THREAD_GSCOPE_FLAG_UNUSED 0
|
|
+# define THREAD_GSCOPE_FLAG_USED 1
|
|
+# define THREAD_GSCOPE_FLAG_WAIT 2
|
|
+# define THREAD_GSCOPE_RESET_FLAG() \
|
|
+ do \
|
|
+ { \
|
|
+ int __res = atomic_exchange_release ( \
|
|
+ &THREAD_SELF->header.gscope_flag, THREAD_GSCOPE_FLAG_UNUSED); \
|
|
+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
|
|
+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
|
|
+ } \
|
|
+ while (0)
|
|
+# define THREAD_GSCOPE_SET_FLAG() \
|
|
+ do \
|
|
+ { \
|
|
+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
|
|
+ atomic_write_barrier (); \
|
|
+ } \
|
|
+ while (0)
|
|
+
|
|
+#endif /* __ASSEMBLER__ */
|
|
+
|
|
+#endif /* tls.h */
|
|
diff --git a/sysdeps/sw_64/stackinfo.h b/sysdeps/sw_64/stackinfo.h
|
|
new file mode 100644
|
|
index 00000000..661a814a
|
|
--- /dev/null
|
|
+++ b/sysdeps/sw_64/stackinfo.h
|
|
@@ -0,0 +1,33 @@
|
|
+/* Copyright (C) 2001-2023 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 file contains a bit of information about the stack allocation
|
|
+ of the processor. */
|
|
+
|
|
+#ifndef _STACKINFO_H
|
|
+#define _STACKINFO_H 1
|
|
+
|
|
+#include <elf.h>
|
|
+
|
|
+/* On Sw_64 the stack grows down. */
|
|
+#define _STACK_GROWS_DOWN 1
|
|
+
|
|
+/* Default to an executable stack. PF_X can be overridden if PT_GNU_STACK is
|
|
+ * present, but it is presumed absent. */
|
|
+#define DEFAULT_STACK_PERMS (PF_R | PF_W | PF_X)
|
|
+
|
|
+#endif /* stackinfo.h */
|
|
diff --git a/sysdeps/sw_64/sw8a/nptl/tls.h b/sysdeps/sw_64/sw8a/nptl/tls.h
|
|
new file mode 100644
|
|
index 00000000..d0942c19
|
|
--- /dev/null
|
|
+++ b/sysdeps/sw_64/sw8a/nptl/tls.h
|
|
@@ -0,0 +1,106 @@
|
|
+/* Definition for thread-local data handling. NPTL/Sw_64 version.
|
|
+ Copyright (C) 2003-2023 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/>. */
|
|
+
|
|
+#ifndef _TLS_H
|
|
+#define _TLS_H 1
|
|
+
|
|
+#include <dl-sysdep.h>
|
|
+
|
|
+#ifndef __ASSEMBLER__
|
|
+# include <stdbool.h>
|
|
+# include <stddef.h>
|
|
+# include <stdint.h>
|
|
+# include <dl-dtv.h>
|
|
+
|
|
+/* Get system call information. */
|
|
+# include <sysdep.h>
|
|
+
|
|
+/* The TP points to the start of the thread blocks. */
|
|
+# define TLS_DTV_AT_TP 1
|
|
+# define TLS_TCB_AT_TP 0
|
|
+
|
|
+/* Get the thread descriptor definition. */
|
|
+# include <nptl/descr.h>
|
|
+
|
|
+typedef struct
|
|
+{
|
|
+ dtv_t *dtv;
|
|
+ void *__private;
|
|
+} tcbhead_t;
|
|
+
|
|
+/* This is the size of the initial TCB. */
|
|
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
|
|
+
|
|
+/* This is the size of the TCB. */
|
|
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
|
|
+
|
|
+/* This is the size we need before TCB. */
|
|
+# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
|
|
+
|
|
+/* Install the dtv pointer. The pointer passed is to the element with
|
|
+ index -1 which contain the length. */
|
|
+# define INSTALL_DTV(tcbp, dtvp) (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1)
|
|
+
|
|
+/* Install new dtv for current thread. */
|
|
+# define INSTALL_NEW_DTV(dtv) (THREAD_DTV () = (dtv))
|
|
+
|
|
+/* Return dtv of given thread descriptor. */
|
|
+# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))->dtv)
|
|
+
|
|
+/* Code to initially initialize the thread pointer. This might need
|
|
+ special attention since 'errno' is not yet available and if the
|
|
+ operation can cause a failure 'errno' must not be touched. */
|
|
+# define TLS_INIT_TP(tcbp) \
|
|
+ (__builtin_set_thread_pointer ((void *) (tcbp)), true)
|
|
+
|
|
+/* Value passed to 'clone' for initialization of the thread register. */
|
|
+# define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) + 1
|
|
+
|
|
+/* Return the address of the dtv for the current thread. */
|
|
+# define THREAD_DTV() (((tcbhead_t *) __builtin_thread_pointer ())->dtv)
|
|
+
|
|
+/* Return the thread descriptor for the current thread. */
|
|
+# define THREAD_SELF ((struct pthread *) __builtin_thread_pointer () - 1)
|
|
+
|
|
+/* Magic for libthread_db to know how to do THREAD_SELF. */
|
|
+# define DB_THREAD_SELF REGISTER (64, 64, 32 * 8, -sizeof (struct pthread))
|
|
+
|
|
+# include <tcb-access.h>
|
|
+# define THREAD_GSCOPE_FLAG_UNUSED 0
|
|
+# define THREAD_GSCOPE_FLAG_USED 1
|
|
+# define THREAD_GSCOPE_FLAG_WAIT 2
|
|
+# define THREAD_GSCOPE_RESET_FLAG() \
|
|
+ do \
|
|
+ { \
|
|
+ int __res = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
|
|
+ THREAD_GSCOPE_FLAG_UNUSED); \
|
|
+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
|
|
+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
|
|
+ } \
|
|
+ while (0)
|
|
+# define THREAD_GSCOPE_SET_FLAG() \
|
|
+ do \
|
|
+ { \
|
|
+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
|
|
+ atomic_write_barrier (); \
|
|
+ } \
|
|
+ while (0)
|
|
+
|
|
+#endif /* __ASSEMBLER__ */
|
|
+
|
|
+#endif /* tls.h */
|
|
--
|
|
2.25.1
|
|
|