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-rw-r--r--linuxthreads/ChangeLog18
-rw-r--r--linuxthreads/internals.h4
-rw-r--r--linuxthreads/manager.c7
-rw-r--r--linuxthreads/pthread.c8
-rw-r--r--linuxthreads/sysdeps/i386/i586/Makefile3
-rw-r--r--linuxthreads/sysdeps/i386/i586/Versions5
-rw-r--r--linuxthreads/sysdeps/i386/i586/ptclock_gettime.c45
-rw-r--r--linuxthreads/sysdeps/i386/i586/ptclock_settime.c32
-rw-r--r--linuxthreads/sysdeps/i386/i686/Implies1
-rw-r--r--linuxthreads/sysdeps/i386/useldt.h66
10 files changed, 170 insertions, 19 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index ca64e526fd..e74f0bfbe8 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,21 @@
+2001-04-21 Ulrich Drepper <drepper@redhat.com>
+
+ * internals.h: Include <cpuclock-init.h>.
+ (struct _pthread_descr_struct): Add p_cpuclock_offset field if
+ CPUCLOCK_VARDEF is defined.
+ * pthread.c (__pthread_initialize_minimal): Initialize
+ p_cpuclock_offset field for main thread if CPUCLOCK_INIT is defined.
+ * manager.c (pthread_start_thread): Set p_cpuclock_offset field
+ for new thread to current CPU clock value.
+
+ * sysdeps/i386/useldt.h: Extend all the macros to handle 8-byte values.
+
+ * sysdeps/i386/i586/Makefile: New file.
+ * sysdeps/i386/i586/Versions: New file.
+ * sysdeps/i386/i586/ptclock_gettime.c: New file.
+ * sysdeps/i386/i586/ptclock_settime.c: New file.
+ * sysdeps/i386/i686/Implies: New file.
+
2001-04-18 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Put specs into
diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h
index 998f7788e8..fbe0ea35d2 100644
--- a/linuxthreads/internals.h
+++ b/linuxthreads/internals.h
@@ -33,6 +33,7 @@ extern int __compare_and_swap (long int *p, long int oldval, long int newval);
#include "pt-machine.h"
#include "semaphore.h"
#include "../linuxthreads_db/thread_dbP.h"
+#include <cpuclock-init.h>
#ifndef THREAD_GETMEM
# define THREAD_GETMEM(descr, member) descr->member
@@ -179,6 +180,9 @@ struct _pthread_descr_struct {
struct __res_state *p_resp; /* Pointer to resolver state */
struct __res_state p_res; /* per-thread resolver state */
int p_inheritsched; /* copied from the thread attribute */
+#ifdef CPUCLOCK_VARDEF
+ CPUCLOCK_VARDEF (p_cpuclock_offset); /* Initial CPU clock for thread. */
+#endif
/* New elements must be added at the end. */
} __attribute__ ((aligned(32))); /* We need to align the structure so that
doubles are aligned properly. This is 8
diff --git a/linuxthreads/manager.c b/linuxthreads/manager.c
index 431e149212..dbe2aa2d19 100644
--- a/linuxthreads/manager.c
+++ b/linuxthreads/manager.c
@@ -225,10 +225,17 @@ static int pthread_start_thread(void *arg)
pthread_descr self = (pthread_descr) arg;
struct pthread_request request;
void * outcome;
+#ifdef CPUCLOCK_VARDEF
+ CPUCLOCK_VARDEF (tmpclock);
+#endif
/* Initialize special thread_self processing, if any. */
#ifdef INIT_THREAD_SELF
INIT_THREAD_SELF(self, self->p_nr);
#endif
+#ifdef CPUCLOCK_INIT
+ CPUCLOCK_INIT (tmpclock);
+ THREAD_SETMEM (self, p_cpuclock_offset, tmpclock);
+#endif
/* Make sure our pid field is initialized, just in case we get there
before our father has initialized it. */
THREAD_SETMEM(self, p_pid, __getpid());
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c
index ff9c083010..73a7acb9c9 100644
--- a/linuxthreads/pthread.c
+++ b/linuxthreads/pthread.c
@@ -225,6 +225,11 @@ static void pthread_handle_sigcancel(int sig);
static void pthread_handle_sigrestart(int sig);
static void pthread_handle_sigdebug(int sig);
+/* CPU clock handling. */
+#ifdef CPUCLOCK_VARDECL
+CPUCLOCK_VARDECL (_dl_cpuclock_offset);
+#endif
+
/* Signal numbers used for the communication.
In these variables we keep track of the used variables. If the
platform does not support any real-time signals we will define the
@@ -390,6 +395,9 @@ __pthread_initialize_minimal(void)
#ifdef INIT_THREAD_SELF
INIT_THREAD_SELF(&__pthread_initial_thread, 0);
#endif
+#ifdef CPUCLOCK_INIT
+ __pthread_initial_thread.p_cpuclock_offset = _dl_cpuclock_offset;
+#endif
}
diff --git a/linuxthreads/sysdeps/i386/i586/Makefile b/linuxthreads/sysdeps/i386/i586/Makefile
new file mode 100644
index 0000000000..96c195f6e5
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/i586/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),linuxthreads)
+libpthread-sysdep_routines += ptclock_gettime ptclock_settime
+endif
diff --git a/linuxthreads/sysdeps/i386/i586/Versions b/linuxthreads/sysdeps/i386/i586/Versions
new file mode 100644
index 0000000000..f9921aff55
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/i586/Versions
@@ -0,0 +1,5 @@
+libpthread {
+ GLIBC_2.2.3 {
+ __pthread_clock_gettime; __pthread_clock_settime;
+ }
+}
diff --git a/linuxthreads/sysdeps/i386/i586/ptclock_gettime.c b/linuxthreads/sysdeps/i386/i586/ptclock_gettime.c
new file mode 100644
index 0000000000..818251074e
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/i586/ptclock_gettime.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 2001 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <time.h>
+#include <libc-internal.h>
+
+#include "../../../internals.h"
+
+
+int
+__pthread_clock_gettime (unsigned long long int freq, struct timespec *tp)
+{
+ unsigned long long int tsc;
+ pthread_descr self = thread_self ();
+
+ /* Get the current counter. */
+ asm volatile ("rdtsc" : "=A" (tsc));
+
+ /* Compute the offset since the start time of the process. */
+ tsc -= THREAD_GETMEM (self, p_cpuclock_offset);
+
+ /* Compute the seconds. */
+ tp->tv_sec = tsc / freq;
+
+ /* And the nanoseconds. This computation should be stable until
+ we get machines with about 16GHz frequency. */
+ tp->tv_nsec = ((tsc % freq) * 1000000000ull) / freq;
+
+ return 0;
+}
diff --git a/linuxthreads/sysdeps/i386/i586/ptclock_settime.c b/linuxthreads/sysdeps/i386/i586/ptclock_settime.c
new file mode 100644
index 0000000000..3026528cc2
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/i586/ptclock_settime.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2001 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <time.h>
+#include <libc-internal.h>
+
+#include "../../../internals.h"
+
+
+void
+__pthread_clock_settime (unsigned long long int offset)
+{
+ pthread_descr self = thread_self ();
+
+ /* Compute the offset since the start time of the process. */
+ THREAD_SETMEM (self, p_cpuclock_offset, offset);
+}
diff --git a/linuxthreads/sysdeps/i386/i686/Implies b/linuxthreads/sysdeps/i386/i686/Implies
new file mode 100644
index 0000000000..0df509e35f
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/i686/Implies
@@ -0,0 +1 @@
+i386/i586
diff --git a/linuxthreads/sysdeps/i386/useldt.h b/linuxthreads/sysdeps/i386/useldt.h
index ebf520cc39..b9566ace1f 100644
--- a/linuxthreads/sysdeps/i386/useldt.h
+++ b/linuxthreads/sysdeps/i386/useldt.h
@@ -1,6 +1,6 @@
/* Special definitions for ix86 machine using segment register based
thread descriptor.
- Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>.
@@ -88,16 +88,24 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
: "0" (0), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
+ else if (sizeof (__value) == 4) \
+ __asm__ __volatile__ ("movl %%gs:%P1,%0" \
+ : "=r" (__value) \
+ : "i" (offsetof (struct _pthread_descr_struct, \
+ member))); \
else \
{ \
- if (sizeof (__value) != 4) \
- /* There should not be any value with a size other than 1 or 4. */ \
+ if (sizeof (__value) != 8) \
+ /* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
- __asm__ __volatile__ ("movl %%gs:%P1,%0" \
- : "=r" (__value) \
+ __asm__ __volatile__ ("movl %%gs:%P1,%%eax\n\t" \
+ "movl %%gs:%P2,%%edx" \
+ : "=A" (__value) \
: "i" (offsetof (struct _pthread_descr_struct, \
- member))); \
+ member)), \
+ "i" (offsetof (struct _pthread_descr_struct, \
+ member) + 4)); \
} \
__value; \
})
@@ -112,14 +120,20 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
: "0" (0), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
+ else if (sizeof (__value) == 4) \
+ __asm__ __volatile__ ("movl %%gs:(%1),%0" \
+ : "=r" (__value) \
+ : "r" (offsetof (struct _pthread_descr_struct, \
+ member))); \
else \
{ \
- if (sizeof (__value) != 4) \
- /* There should not be any value with a size other than 1 or 4. */ \
+ if (sizeof (__value) != 8) \
+ /* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
- __asm__ __volatile__ ("movl %%gs:(%1),%0" \
- : "=r" (__value) \
+ __asm__ __volatile__ ("movl %%gs:(%1),%%eax\n\t" \
+ "movl %%gs:4(%1),%%edx" \
+ : "=&A" (__value) \
: "r" (offsetof (struct _pthread_descr_struct, \
member))); \
} \
@@ -135,16 +149,24 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
: "q" (__value), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
+ else if (sizeof (__value) == 4) \
+ __asm__ __volatile__ ("movl %0,%%gs:%P1" : \
+ : "r" (__value), \
+ "i" (offsetof (struct _pthread_descr_struct, \
+ member))); \
else \
{ \
- if (sizeof (__value) != 4) \
- /* There should not be any value with a size other than 1 or 4. */ \
+ if (sizeof (__value) != 8) \
+ /* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
- __asm__ __volatile__ ("movl %0,%%gs:%P1" : \
- : "r" (__value), \
+ __asm__ __volatile__ ("movl %%eax,%%gs:%P1\n\n" \
+ "movl %%edx,%%gs:%P2" : \
+ : "A" (__value), \
"i" (offsetof (struct _pthread_descr_struct, \
- member))); \
+ member)), \
+ "i" (offsetof (struct _pthread_descr_struct, \
+ member) + 4)); \
} \
})
@@ -157,14 +179,20 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
: "q" (__value), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
+ else if (sizeof (__value) == 4) \
+ __asm__ __volatile__ ("movl %0,%%gs:(%1)" : \
+ : "r" (__value), \
+ "r" (offsetof (struct _pthread_descr_struct, \
+ member))); \
else \
{ \
- if (sizeof (__value) != 4) \
- /* There should not be any value with a size other than 1 or 4. */ \
+ if (sizeof (__value) != 8) \
+ /* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
- __asm__ __volatile__ ("movl %0,%%gs:(%1)" : \
- : "r" (__value), \
+ __asm__ __volatile__ ("movl %%eax,%%gs:(%1)\n\t" \
+ "movl %%edx,%%gs:4(%1)" : \
+ : "A" (__value), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
} \
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