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-rw-r--r--sysdeps/generic/hp-timing.h80
-rw-r--r--sysdeps/i386/dl-machine.h2
-rw-r--r--sysdeps/i386/i686/Makefile3
-rw-r--r--sysdeps/i386/i686/hp-timing.c24
-rw-r--r--sysdeps/i386/i686/hp-timing.h160
-rw-r--r--sysdeps/unix/sysv/linux/arm/Dist2
6 files changed, 270 insertions, 1 deletions
diff --git a/sysdeps/generic/hp-timing.h b/sysdeps/generic/hp-timing.h
new file mode 100644
index 0000000000..7795f510d5
--- /dev/null
+++ b/sysdeps/generic/hp-timing.h
@@ -0,0 +1,80 @@
+/* High precision, low overhead timing functions. i686 version.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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. */
+
+#ifndef _HP_TIMING_H
+#define _HP_TIMING_H 1
+
+
+/* There are no generic definitions for the times. We could write something
+ using the `gettimeofday' system call where available but the overhead of
+ the system call might be too high.
+
+ In case a platform supports timers in the hardware the following macros
+ and types must be defined:
+
+ - HP_TIMING_AVAIL: test for availability.
+
+ - HP_TIMING_INLINE: this macro is non-zero if the functionality is not
+ implemented using function calls but instead uses some inlined code
+ which might simply consist of a few assembler instructions. We have to
+ know this since we might want to use the macros here in places where we
+ cannot make function calls.
+
+ - hp_timing_t: This is the type for variables used to store the time
+ values.
+
+ - HP_TIMING_ZERO: clear `hp_timing_t' object.
+
+ - HP_TIMING_NOW: place timestamp for current time in variable given as
+ parameter.
+
+ - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the
+ HP_TIMING_DIFF macro.
+
+ - HP_TIMING_DIFF: compute difference between two times and store it
+ in a third. Source and destination might overlap.
+
+ - HP_TIMING_ACCUM: add time difference to another variable. This might
+ be a bit more complicated to implement for some platforms as the
+ operation should be thread-safe and 64bit arithmetic on 32bit platforms
+ is not.
+
+ - HP_TIMING_ACCUM_NT: this is the variant for situations where we know
+ there are no threads involved.
+
+ - HP_TIMING_PRINT: write decimal representation of the timing value into
+ the given string. This operation need not be inline even though
+ HP_TIMING_INLINE is specified.
+
+*/
+
+/* Provide dummy definitions. */
+#define HP_TIMING_AVAIL (0)
+#define HP_TIMING_INLINE (0)
+typedef int hp_timing_t;
+#define HP_TIMING_ZERO(Var)
+#define HP_TIMING_NOW(var)
+#define HP_TIMING_DIFF_INIT()
+#define HP_TIMING_DIFF(Diff, Start, End)
+#define HP_TIMING_ACCUM(Sum, Diff)
+#define HP_TIMING_ACCUM_NT(Sum, Diff)
+#define HP_TIMING_PRINT(Buf, Len, Val)
+
+#endif /* hp-timing.h */
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 87d924821a..8338a93617 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -335,7 +335,7 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
found. */
break;
if (sym->st_size > refsym->st_size
- || (_dl_verbose && sym->st_size < refsym->st_size))
+ || (sym->st_size < refsym->st_size && _dl_verbose))
{
const char *strtab;
diff --git a/sysdeps/i386/i686/Makefile b/sysdeps/i386/i686/Makefile
new file mode 100644
index 0000000000..b4b60d0814
--- /dev/null
+++ b/sysdeps/i386/i686/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),csu)
+sysdep_routines += hp-timing
+endif
diff --git a/sysdeps/i386/i686/hp-timing.c b/sysdeps/i386/i686/hp-timing.c
new file mode 100644
index 0000000000..3f5fcfe1e5
--- /dev/null
+++ b/sysdeps/i386/i686/hp-timing.c
@@ -0,0 +1,24 @@
+/* Support for high precision, low overhead timing functions. i686 version.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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 <hp-timing.h>
+
+/* We have to define the variable for the overhead. */
+hp_timing_t __libc_hp_timing_overhead;
diff --git a/sysdeps/i386/i686/hp-timing.h b/sysdeps/i386/i686/hp-timing.h
new file mode 100644
index 0000000000..ffbeb277e5
--- /dev/null
+++ b/sysdeps/i386/i686/hp-timing.h
@@ -0,0 +1,160 @@
+/* High precision, low overhead timing functions. i686 version.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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. */
+
+#ifndef _HP_TIMING_H
+#define _HP_TIMING_H 1
+
+#include <string.h>
+#include <sys/param.h>
+#include <stdio-common/_itoa.h>
+
+/* The macros defined here use the timestamp counter in i586 and up versions
+ of the x86 processors. They provide a very accurate way to measure the
+ time with very little overhead. The time values themself have no real
+ meaning, only differences are interesting.
+
+ This version is for the i686 processors. The difference to the i586
+ version is that the timerstamp register is unconditionally used. This is
+ not the case for the i586 version where we have to perform runtime test
+ whether the processor really has this capability. We have to make this
+ distinction since the sysdeps/i386/i586 code is supposed to work on all
+ platforms while the i686 already contains i686-specific code.
+
+ The list of macros we need includes the following:
+
+ - HP_TIMING_AVAIL: test for availability.
+
+ - HP_TIMING_INLINE: this macro is non-zero if the functionality is not
+ implemented using function calls but instead uses some inlined code
+ which might simply consist of a few assembler instructions. We have to
+ know this since we might want to use the macros here in places where we
+ cannot make function calls.
+
+ - hp_timing_t: This is the type for variables used to store the time
+ values.
+
+ - HP_TIMING_ZERO: clear `hp_timing_t' object.
+
+ - HP_TIMING_NOW: place timestamp for current time in variable given as
+ parameter.
+
+ - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the
+ HP_TIMING_DIFF macro.
+
+ - HP_TIMING_DIFF: compute difference between two times and store it
+ in a third. Source and destination might overlap.
+
+ - HP_TIMING_ACCUM: add time difference to another variable. This might
+ be a bit more complicated to implement for some platforms as the
+ operation should be thread-safe and 64bit arithmetic on 32bit platforms
+ is not.
+
+ - HP_TIMING_ACCUM_NT: this is the variant for situations where we know
+ there are no threads involved.
+
+ - HP_TIMING_PRINT: write decimal representation of the timing value into
+ the given string. This operation need not be inline even though
+ HP_TIMING_INLINE is specified.
+
+*/
+
+/* We always assume having the timestamp register. */
+#define HP_TIMING_AVAIL (1)
+
+/* We indeed have inlined functions. */
+#define HP_TIMING_INLINE (1)
+
+/* We use 64bit values for the times. */
+typedef unsigned long long int hp_timing_t;
+
+/* Internal variabled used to store the overhead of the measurement
+ opcodes. */
+extern hp_timing_t __libc_hp_timing_overhead;
+
+/* Set timestamp value to zero. */
+#define HP_TIMING_ZERO(Var) (Var) = (0)
+
+/* That's quite simple. Use the `rdtsc' instruction. Note that the value
+ might not be 100% accurate since there might be some more instructions
+ running in this moment. This could be changed by using a barrier like
+ 'cpuid' right before the `rdtsc' instruciton. But we are not interested
+ in accurate clock cycles here so we don't do this. */
+#define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rdtsc" : "=A" (Var))
+
+/* Use two 'rdtsc' instructions in a row to find out how long it takes. */
+#define HP_TIMING_DIFF_INIT() \
+ do { \
+ int __cnt = 5; \
+ __libc_hp_timing_overhead = ~0ull; \
+ do \
+ { \
+ hp_timing_t __t1, __t2; \
+ HP_TIMING_NOW (__t1); \
+ HP_TIMING_NOW (__t2); \
+ if (__t2 - __t1 < __libc_hp_timing_overhead) \
+ __libc_hp_timing_overhead = __t2 - __t1; \
+ } \
+ while (--__cnt > 0); \
+ } while (0)
+
+/* It's simple arithmetic for us. */
+#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start))
+
+/* We have to jump through hoops to get this correctly implemented. */
+#define HP_TIMING_ACCUM(Sum, Diff) \
+ do { \
+ char __not_done; \
+ hp_timing_t __oldval = (Sum); \
+ hp_timing_t __diff = (Diff) - __libc_hp_timing_overhead; \
+ do \
+ { \
+ hp_timing_t __newval = __oldval + __diff; \
+ int __temp0, __temp1; \
+ __asm__ __volatile__ ("xchgl %4, %%ebx\n\t" \
+ "lock; cmpxchg8b %1\n\t" \
+ "sete %0\n\t" \
+ "movl %4, %%ebx" \
+ : "=q" (__not_done), "=m" (Sum), \
+ "=A" (__oldval), "=c" (__temp0), \
+ "=SD" (__temp1) \
+ : "1" (Sum), "2" (__oldval), \
+ "3" (__newval >> 32), \
+ "4" (__newval & 0xffffffff) \
+ : "memory"); \
+ } \
+ while (__not_done); \
+ } while (0)
+
+/* No threads, no extra work. */
+#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff)
+
+/* Print the time value. */
+#define HP_TIMING_PRINT(Buf, Len, Val) \
+ do { \
+ char __buf[20]; \
+ char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \
+ int __len = (Len); \
+ char *__dest = (Buf); \
+ while (__len-- > 0 && __cp < __buf + sizeof (__buf)) \
+ *__dest++ = *__cp++; \
+ memcpy (__dest, " clock cycles", MIN (__len, sizeof (" clock cycles"))); \
+ } while (0)
+
+#endif /* hp-timing.h */
diff --git a/sysdeps/unix/sysv/linux/arm/Dist b/sysdeps/unix/sysv/linux/arm/Dist
index 18aa31fa9d..479a4abb08 100644
--- a/sysdeps/unix/sysv/linux/arm/Dist
+++ b/sysdeps/unix/sysv/linux/arm/Dist
@@ -1,7 +1,9 @@
clone.S
init-first.h
+ioperm.c
setresuid.c
setresgid.c
setfsuid.c
setfsgid.c
bits/armsigctx.h
+sys/io.h
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 18:33:59 +0000