From 3f62b69af3f0f61299ac7bcbc7c3b35cbd16cf4a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 27 Jul 1998 17:55:05 +0000 Subject: Update. 1998-07-27 17:42 Ulrich Drepper * nss/nss_files/files-parse.c (INT_FIELD): Use strtoul instead of strtol. (INT_FIELD_MAYBE_NULL): Likewise. * posix/globtest.c: Rewrite for extended test suite. * posix/globtest.sh: More tests. Patch by Brian Wellington . * stdlib/strtol.c: Don't redefine LONG_MAX, LONG_MIN, and ULONG_MAX. Use new macro. * sysdeps/generic/readv.c: Correct return type. * sysdeps/generic/writev.c: Likewise. 1998-07-24 Gordon Matzigkeit * argp/argp-help.c (_GNU_SOURCE): Define, to suck in program_invocation_name when compiling outside of glibc. 1998-07-26 Philip Blundell * sysdeps/unix/sysv/linux/arm/siglist.c: New file; ARM tools don't like `@' in .type directives. * sysdeps/libm-ieee754/e_expf.c (__ieee754_expf): Check whether FE_TONEAREST exists for this platform before using it. * sysdeps/libm-ieee754/e_exp.c (__ieee754_exp): Likewise. * sysdeps/arm/dl-machine.h (elf_machine_rel): Delete redundant debugging code. Correct handling of PC24 relocs. * elf/Makefile (ld-map): Only define if versioning is in use. * sysdeps/arm/fpu_control.h: Move to ... * sysdeps/arm/fpu/fpu_control.h: ... here. * sysdeps/generic/fpu_control.h: Made usable as a dummy implementation. * sysdeps/unix/sysv/linux/arm/brk.c: New file. * sysdeps/arm/machine-gmon.h: Improved profiling for ARM. * sysdeps/arm/sysdep.h (CALL_MCOUNT): Replace stub with real implementation. * sysdeps/unix/sysv/linux/arm/clone.S: Likewise. Based on patch from Scott Bambrough and Pat Beirne. * shlib-versions: Add appropriate definitions for ARM machines. * README.template: Mention that Linux/ARM with ELF works now. 1998-07-18 Andreas Schwab * Makerules: Generate compilation rules for all object suffixes, not only those currently selected, for sources in the current or object directory. 1998-07-24 Andreas Schwab * posix/fnmatch.c (fnmatch): Allow `/' in character class. Don't match `/' in filename by a character class if requested. * posix/testfnm.c: Rewritten. * posix/testfnm.args: Removed. 1998-07-25 Andreas Schwab * posix/annexc.c (limits_syms): Add missing symbols. (stdarg_syms): Move va_list to `maybe' list. (stdio_syms): Add FOPEN_MAX. --- sysdeps/unix/sysv/linux/arm/brk.c | 49 +++++++++++++++++++++++ sysdeps/unix/sysv/linux/arm/clone.S | 36 ++++++++++++++++- sysdeps/unix/sysv/linux/arm/siglist.c | 75 +++++++++++++++++++++++++++++++++++ 3 files changed, 158 insertions(+), 2 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/arm/brk.c create mode 100644 sysdeps/unix/sysv/linux/arm/siglist.c (limited to 'sysdeps/unix/sysv') diff --git a/sysdeps/unix/sysv/linux/arm/brk.c b/sysdeps/unix/sysv/linux/arm/brk.c new file mode 100644 index 0000000000..560e5a8337 --- /dev/null +++ b/sysdeps/unix/sysv/linux/arm/brk.c @@ -0,0 +1,49 @@ +/* brk system call for Linux/ARM. + Copyright (C) 1995, 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include + +/* This must be initialized data because commons can't have aliases. */ +void *__curbrk = 0; + +int +__brk (void *addr) +{ + void *newbrk; + + asm ("mov a1, %1\n" /* save the argment in r0 */ + "swi %2\n" /* do the system call */ + "mov %0, a1;" /* keep the return value */ + : "=r"(newbrk) + : "r"(addr), "i" (SYS_ify (brk)) + : "a1"); + + __curbrk = newbrk; + + if (newbrk < addr) + { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +weak_alias (__brk, brk) diff --git a/sysdeps/unix/sysv/linux/arm/clone.S b/sysdeps/unix/sysv/linux/arm/clone.S index 8125ebff20..728d62f3e3 100644 --- a/sysdeps/unix/sysv/linux/arm/clone.S +++ b/sysdeps/unix/sysv/linux/arm/clone.S @@ -1,5 +1,6 @@ -/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. + Contributed by Pat Beirne 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 @@ -27,7 +28,38 @@ .text ENTRY(__clone) - /* Somebody needs to write this. */ + @ sanity check args + cmp r0, #0 + cmpne r1, #0 + moveq r0, #-EINVAL + beq PLTJMP(syscall_error) + + @ insert the args onto the new stack + sub r1, r1, #8 + str r3, [r1, #4] + @ save the function pointer as the 0th element + str r0, [r1] + + @ do the system call + @ get flags + mov r0, r2 + @ new sp is already in r1 + swi SYS_ify(clone) + cmp r0, #0 + blt PLTJMP(syscall_error) + beq thread_start + @ else, thread was launched... + mov pc, lr + +thread_start: + @ pick the function arg and call address off the stack and execute + ldr r0, [sp, #4] + mov lr, pc + ldr pc, [sp] + + @ and we are done, passing the return value through r0 + bl PLTJMP(_exit) + PSEUDO_END (__clone) weak_alias (__clone, clone) diff --git a/sysdeps/unix/sysv/linux/arm/siglist.c b/sysdeps/unix/sysv/linux/arm/siglist.c new file mode 100644 index 0000000000..9a539604ff --- /dev/null +++ b/sysdeps/unix/sysv/linux/arm/siglist.c @@ -0,0 +1,75 @@ +/* Copyright (C) 1997, 1998 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 +#include +#include + +#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING +# define SYS_SIGLIST __new_sys_siglist +# define SYS_SIGABBREV __new_sys_sigabbrev +#else +# define SYS_SIGLIST _sys_siglist +# define SYS_SIGABBREV _sys_sigabbrev +#endif + +#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING +asm (".data; .globl __old_sys_siglist; __old_sys_siglist:"); +#endif + +const char *const SYS_SIGLIST[NSIG] = +{ +#define init_sig(sig, abbrev, desc) [sig] desc, +#include "siglist.h" +#undef init_sig +}; + +#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING +asm (".type __old_sys_siglist,%object;.size __old_sys_siglist," + OLD_SIGLIST_SIZE_STR "*" PTR_SIZE_STR); + +asm (".data; .globl __old_sys_sigabbrev; __old_sys_sigabbrev:"); +#endif + +const char *const SYS_SIGABBREV[NSIG] = +{ +#define init_sig(sig, abbrev, desc) [sig] abbrev, +#include "siglist.h" +#undef init_sig +}; + +#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING +asm (".type __old_sys_sigabbrev,%object;.size __old_sys_sigabbrev," + OLD_SIGLIST_SIZE_STR "*" PTR_SIZE_STR); + +extern const char *const *__old_sys_siglist; +extern const char *const *__old_sys_sigabbrev; + +strong_alias (__old_sys_siglist, _old_sys_siglist) +symbol_version (__old_sys_siglist, _sys_siglist, GLIBC_2.0); +symbol_version (_old_sys_siglist, sys_siglist, GLIBC_2.0); +symbol_version (__old_sys_sigabbrev, sys_sigabbrev, GLIBC_2.0); + +strong_alias (__new_sys_siglist, _new_sys_siglist) +default_symbol_version (__new_sys_siglist, _sys_siglist, GLIBC_2.1); +default_symbol_version (_new_sys_siglist, sys_siglist, GLIBC_2.1); +default_symbol_version (__new_sys_sigabbrev, sys_sigabbrev, GLIBC_2.1); +#else +weak_alias (_sys_siglist, sys_siglist) +weak_alias (_sys_sigabbrev, sys_sigabbrev) +#endif -- cgit 1.4.1