diff options
| author | Ulrich Drepper <drepper@redhat.com> | 1997-03-21 20:00:48 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1997-03-21 20:00:48 +0000 |
| commit | 5ae9d168f66cc6b40f74cfb4a8f2631fc1df6a2a (patch) | |
| tree | 5157016d80fd69eef4b7f2c74f83c37eebba50d1 /sysdeps | |
| parent | f752bfe37962db44ac8db553d840f8215966911e (diff) | |
| download | glibc-5ae9d168f66cc6b40f74cfb4a8f2631fc1df6a2a.tar.xz glibc-5ae9d168f66cc6b40f74cfb4a8f2631fc1df6a2a.zip | |
Update.
1997-03-21 20:55 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/machine-gmon.h: Update copyright.
* sysdeps/i386/Makefile [$(subdir)=gmon] (sysdep_routines): Add
i386-mcount.
* sysdeps/i386/dl-machine.h [PROF] (_dl_runtime_resolve): Don't
use regparam mechanism for call of `fixup' call.
* sysdeps/i386/Dist: New file.
* sysdeps/i386/i386-mcount.S: New file. `mcount' entry point.
* sysdeps/i386/machine-gmon.h: New file. i386 specific version
of gmon definitions.
1997-03-20 13:39 Andreas Jaeger <aj@arthur.pfalz.de>
* stdlib/tst-strtol.c (main): Save the value of errno since printf
may modify it, use the saved errno everywhere.
* stdlib/tst-strtod.c (main): Likewise.
1997-03-21 05:54 Ulrich Drepper <drepper@cygnus.com>
* posix/glob.c (glob): Fix completely broken handling of
GLOB_BRACE and partly broken handling of GLOB_TILDE.
Reported by Dennis Henriksen <opus@flamingo.osrl.dk>.
1997-03-20 20:22 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/readv.c: Don't emulate readv with small
UIO_FASTIOV value by multiple readv calls since we need atomicity.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
Reported by Matthis Urlichs.
1997-03-20 04:34 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/unix/sysv/linux/i386/sysdep.S (CALL_MCOUNT): Clear this
macro so ENTRY(__syscall_error) doesn't insert a call to _mcount,
which clobbers %eax.
* Makeconfig [$(elf)=yes] (+prector, +postctor): New variables for
crtbegin.o/crtend.o, using gcc to find them.
(+link): Use them.
1997-03-20 00:06 Richard Henderson <rth@tamu.edu>
* gmon/sys/gmon.h: Revert the bulk of the 960930 changes, as they
affect the alignment, and therefore the end padding of the structs.
Reported by David Mosberger <davidm@azstarnet.com>.
* gmon.c: Declare the variables with aligned tags to compensate.
Use __writev instead of write for the I/O.
* misc/sys/uio.h: Declare __writev and __readv.
* sysdeps/posix/readv.c: Rename and alias readv to __readv.
* sysdeps/posix/writev.c: Likewise for writev.
* sysdeps/stub/readv.c: Likewise.
* sysdeps/stub/writev.c: Likewise.
* sysdeps/unix/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/readv.c: Likewise.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
* stdlib/testdiv.c: Exit with error status when we have an error.
* sysdeps/alpha/div.S: Initialize `quotient' and `mask'.
* sysdeps/alpha/ldiv.S: Likewise.
* sysdeps/unix/sysv/linux/alpha/ioperm.c: Include ctype.h for isdigit.
1997-03-20 14:51 Ulrich Drepper <drepper@cygnus.com>
* nis/nis_file.c: Unify error handling.
1997-03-19 18:36 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/nis_file.c (writeColdStartFile): Fix typo.
* nis/nis_free.c (nis_free_endpoints): Use unsigned int.
* nis/nis_free.c (nis_free_servers): Likewise.
* nis/rpcsvc/nislib.h: Likewise.
* sunrpc/rpc/netdb.h: Add setrpcent and endrpcent prototypes.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/alpha/div.S | 21 | ||||
| -rw-r--r-- | sysdeps/alpha/ldiv.S | 19 | ||||
| -rw-r--r-- | sysdeps/generic/machine-gmon.h | 34 | ||||
| -rw-r--r-- | sysdeps/i386/Dist | 2 | ||||
| -rw-r--r-- | sysdeps/i386/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/i386/dl-machine.h | 32 | ||||
| -rw-r--r-- | sysdeps/i386/i386-mcount.S | 65 | ||||
| -rw-r--r-- | sysdeps/i386/machine-gmon.h | 41 | ||||
| -rw-r--r-- | sysdeps/posix/readv.c | 9 | ||||
| -rw-r--r-- | sysdeps/posix/writev.c | 9 | ||||
| -rw-r--r-- | sysdeps/stub/readv.c | 31 | ||||
| -rw-r--r-- | sysdeps/stub/writev.c | 31 | ||||
| -rw-r--r-- | sysdeps/unix/syscalls.list | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/ioperm.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/sysdep.S | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/readv.c | 32 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/writev.c | 31 |
17 files changed, 254 insertions, 117 deletions
diff --git a/sysdeps/alpha/div.S b/sysdeps/alpha/div.S index 6c461c40d4..6a5c4429e8 100644 --- a/sysdeps/alpha/div.S +++ b/sysdeps/alpha/div.S @@ -1,7 +1,6 @@ -/* Copyright (C) 1996 Free Software Foundation, Inc. - Contributed by Richard Henderson (rth@tamu.edu) - +/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. 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 @@ -14,10 +13,9 @@ 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., 675 Mass Ave, - Cambridge, MA 02139, USA. */ - + 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 <sysdep.h> @@ -44,7 +42,6 @@ div: .prologue 0 #endif -#define dividend t0 #define divisor t1 #define mask t2 #define quotient t3 @@ -54,11 +51,13 @@ div: #define compare t7 /* find correct sign for input to unsigned divide loop. */ + negl a1, modulus # e0 : + negl a2, divisor # .. e1 : sextl a1, a1 # e0 : sextl a2, a2 # .. e1 : - negl a1, dividend # e0 : - negl a2, divisor # .. e1 : - cmovge a1, a1, dividend # e0 : + mov zero, quotient # e0 : + mov 1, mask # .. e1 : + cmovge a1, a1, modulus # e0 : cmovge a2, a2, divisor # .. e1 : beq a2, $divbyzero # e1 : unop # : diff --git a/sysdeps/alpha/ldiv.S b/sysdeps/alpha/ldiv.S index ebbe055870..08bf8eb08d 100644 --- a/sysdeps/alpha/ldiv.S +++ b/sysdeps/alpha/ldiv.S @@ -1,7 +1,6 @@ -/* Copyright (C) 1996 Free Software Foundation, Inc. - Contributed by Richard Henderson (rth@tamu.edu) - +/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. 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 @@ -14,10 +13,9 @@ 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., 675 Mass Ave, - Cambridge, MA 02139, USA. */ - + 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 <sysdep.h> @@ -44,7 +42,6 @@ ldiv: .prologue 0 #endif -#define dividend t0 #define divisor t1 #define mask t2 #define quotient t3 @@ -54,11 +51,13 @@ ldiv: #define compare t7 /* find correct sign for input to unsigned divide loop. */ - mov a1, dividend # e0 : + mov a1, modulus # e0 : mov a2, divisor # .. e1 : negq a1, tmp1 # e0 : negq a2, tmp2 # .. e1 : - cmovlt a1, tmp1, dividend # e0 : + mov zero, quotient # e0 : + mov 1, mask # .. e1 : + cmovlt a1, tmp1, modulus # e0 : cmovlt a2, tmp2, divisor # .. e1 : beq a2, $divbyzero # e1 : unop # : diff --git a/sysdeps/generic/machine-gmon.h b/sysdeps/generic/machine-gmon.h index 31f852dece..c4a2168322 100644 --- a/sysdeps/generic/machine-gmon.h +++ b/sysdeps/generic/machine-gmon.h @@ -1,21 +1,21 @@ /* Machine-dependent definitions for profiling support. Generic GCC 2 version. -Copyright (C) 1996 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., 675 Mass Ave, -Cambridge, MA 02139, USA. */ + Copyright (C) 1996, 1997 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. */ /* GCC version 2 gives us a perfect magical function to get just the information we need: diff --git a/sysdeps/i386/Dist b/sysdeps/i386/Dist new file mode 100644 index 0000000000..50c07d120a --- /dev/null +++ b/sysdeps/i386/Dist @@ -0,0 +1,2 @@ +i386-mcount.S +machine-gmon.h diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile index 21caf42052..35e0422bdb 100644 --- a/sysdeps/i386/Makefile +++ b/sysdeps/i386/Makefile @@ -5,6 +5,10 @@ asm-CPPFLAGS := $(asm-CPPFLAGS) -DGAS_SYNTAX # The i386 `long double' is a distinct type we support. long-double-fcts = yes +ifeq ($(subdir),gmon) +sysdep_routines += i386-mcount +endif + ifeq ($(subdir),elf) CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused CFLAGS-dl-load.c += -Wno-unused diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index 90ec6ce9f9..40623e795c 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -70,11 +70,16 @@ elf_machine_load_address (void) (dynamic_info)[DT_RELSZ]->d_un.d_val -= sizeof (Elf32_Rel); +#ifndef PROF /* We add a declaration of this function here so that in dl-runtime.c the ELF_MACHINE_RUNTIME_TRAMPOLINE macro really can pass the parameters - in registers. */ + in registers. + + We cannot use this scheme for profiling because the _mcount call + destroys the passed register information. */ static ElfW(Addr) fixup (struct link_map *l, ElfW(Word) reloc_offset) __attribute__ ((regparm (2), unused)); +#endif /* Set up the loaded object described by L so its unrelocated PLT entries will jump to the on-demand fixup code in dl-runtime.c. */ @@ -101,7 +106,8 @@ elf_machine_runtime_setup (struct link_map *l, int lazy) /* This code is used in dl-runtime.c to call the `fixup' function and then redirect to the address it returns. */ -#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ +#ifndef PROF +# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ .globl _dl_runtime_resolve .type _dl_runtime_resolve, @function _dl_runtime_resolve: @@ -117,6 +123,28 @@ _dl_runtime_resolve: ret $8 # Jump to function address. .size _dl_runtime_resolve, .-_dl_runtime_resolve "); +#else +# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ + .globl _dl_runtime_resolve + .type _dl_runtime_resolve, @function +_dl_runtime_resolve: + pushl %eax # Preserve registers otherwise clobbered. + pushl %ecx + pushl %edx + movl 16(%esp), %edx # Push the arguments for `fixup' + movl 12(%esp), %eax + pushl %edx + pushl %eax + call fixup # Call resolver. + popl %edx # Pop the parameters + popl %ecx + popl %edx # Get register content back. + popl %ecx + xchgl %eax, (%esp) # Get %eax contents end store function address. + ret $8 # Jump to function address. + .size _dl_runtime_resolve, .-_dl_runtime_resolve +"); +#endif /* The PLT uses Elf32_Rel relocs. */ #define elf_machine_relplt elf_machine_rel } diff --git a/sysdeps/i386/i386-mcount.S b/sysdeps/i386/i386-mcount.S new file mode 100644 index 0000000000..60d52e98fa --- /dev/null +++ b/sysdeps/i386/i386-mcount.S @@ -0,0 +1,65 @@ +/* i386-specific implemetation of profiling support. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + 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 <sysdep.h> + +/* We need a special version of the `mcount' function since for ix86 it + must not clobber any register. This has several reasons: + - there is a bug in gcc as of version 2.7.2.2 which prohibits the + use of profiling together with nested functions + - the ELF `fixup' function uses GCC's regparm feature + - some (future) systems might want to pass parameters in registers. */ + + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(_mcount) + ASM_TYPE_DIRECTIVE(C_SYMBOL_NAME(_mcount), @function) + .align ALIGNARG(4) +C_LABEL(_mcount) + /* Save the caller-clobbered registers. */ + pushl %eax + pushl %ecx + pushl %edx + + movl 12(%esp), %eax + movl 4(%ebp), %ecx + pushl %eax + pushl %ecx + +#ifdef PIC + call 1f +1: popl %ecx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx + movl C_SYMBOL_NAME(__mcount_internal@GOTOFF)(%ecx), %eax + call *%eax +#else + call C_SYMBOL_NAME(__mcount_internal) +#endif + popl %ecx + popl %eax /* Pop the parameters. */ + + /* Pop the saved registers. Please note that `mcount' has no + return value. */ + popl %edx + popl %ecx + popl %eax + ret + ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount)) + +#undef mcount +weak_alias(_mcount, mcount) diff --git a/sysdeps/i386/machine-gmon.h b/sysdeps/i386/machine-gmon.h new file mode 100644 index 0000000000..496a57eb84 --- /dev/null +++ b/sysdeps/i386/machine-gmon.h @@ -0,0 +1,41 @@ +/* i386-specific implemetation of profiling support. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + 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 <sysdep.h> + +/* We need a special version of the `mcount' function since for ix86 it + must not clobber any register. This has several reasons: + - there is a bug in gcc as of version 2.7.2.2 which prohibits the + use of profiling together with nested functions + - the ELF `fixup' function uses GCC's regparm feature + - some (future) systems might want to pass parameters in registers. */ + +/* We must not pollute the global namespace. */ +#define mcount_internal __mcount_internal + +void mcount_internal (u_long frompc, u_long selfpc); + +#define _MCOUNT_DECL(frompc, selfpc) \ +void mcount_internal (u_long frompc, u_long selfpc) + + +/* Define MCOUNT as empty since we have a the implementation in another + file. */ +#define MCOUNT diff --git a/sysdeps/posix/readv.c b/sysdeps/posix/readv.c index 878accaf92..e4a2163f6d 100644 --- a/sysdeps/posix/readv.c +++ b/sysdeps/posix/readv.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1992, 1996, 1997 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 @@ -27,7 +27,7 @@ Operates just like `read' (see <unistd.h>) except that data are put in VECTOR instead of a contiguous buffer. */ ssize_t -readv (fd, vector, count) +__readv (fd, vector, count) int fd; const struct iovec *vector; int count; @@ -46,7 +46,7 @@ readv (fd, vector, count) buffer = (char *) __alloca (bytes); /* Read the data. */ - bytes_read = read (fd, buffer, bytes); + bytes_read = __read (fd, buffer, bytes); if (bytes_read <= 0) return -1; @@ -67,3 +67,6 @@ readv (fd, vector, count) return bytes_read; } +#ifndef __readv +weak_alias (__readv, readv) +#endif diff --git a/sysdeps/posix/writev.c b/sysdeps/posix/writev.c index 2f0572f837..f6f685ce7a 100644 --- a/sysdeps/posix/writev.c +++ b/sysdeps/posix/writev.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1992, 1996, 1997 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 @@ -27,7 +27,7 @@ Operates just like `write' (see <unistd.h>) except that the data are taken from VECTOR instead of a contiguous buffer. */ ssize_t -writev (fd, vector, count) +__writev (fd, vector, count) int fd; const struct iovec *vector; int count; @@ -61,5 +61,8 @@ writev (fd, vector, count) break; } - return write (fd, buffer, bytes); + return __write (fd, buffer, bytes); } +#ifndef __writev +weak_alias (__writev, writev) +#endif diff --git a/sysdeps/stub/readv.c b/sysdeps/stub/readv.c index b537499b07..a3240df239 100644 --- a/sysdeps/stub/readv.c +++ b/sysdeps/stub/readv.c @@ -1,20 +1,20 @@ -/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc. -This file is part of the GNU C Library. +/* Copyright (C) 1991, 1995, 1996, 1997 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 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. + 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., 675 Mass Ave, -Cambridge, MA 02139, USA. */ + 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 <errno.h> #include <unistd.h> @@ -26,7 +26,7 @@ Cambridge, MA 02139, USA. */ Operates just like `read' (see <unistd.h>) except that data are put in VECTOR instead of a contiguous buffer. */ int -readv (fd, vector, count) +__readv (fd, vector, count) int fd; const struct iovec *vector; size_t count; @@ -34,5 +34,6 @@ readv (fd, vector, count) __set_errno (ENOSYS); return -1; } +weak_alias (__readv, readv) stub_warning (readv) diff --git a/sysdeps/stub/writev.c b/sysdeps/stub/writev.c index 593880c0e9..1fd7c2ec73 100644 --- a/sysdeps/stub/writev.c +++ b/sysdeps/stub/writev.c @@ -1,20 +1,20 @@ -/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc. -This file is part of the GNU C Library. +/* Copyright (C) 1991, 1995, 1996, 1997 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 |
