diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc32')
18 files changed, 171 insertions, 318 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Dist b/sysdeps/unix/sysv/linux/sparc/sparc32/Dist deleted file mode 100644 index 66f771a161..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/Dist +++ /dev/null @@ -1,4 +0,0 @@ -clone.S -kernel_stat.h -setfsuid.c -setfsgid.c diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Implies b/sysdeps/unix/sysv/linux/sparc/sparc32/Implies new file mode 100644 index 0000000000..efda9d27c0 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/Implies @@ -0,0 +1,3 @@ +# These supply the ABI compatibility for when long double was double. +ieee754/ldbl-64-128 +ieee754/ldbl-opt diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile index 05fd8523b7..cd1b3fb793 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile @@ -4,8 +4,18 @@ LD += -melf32_sparc # When I get this to work, this is the right thing ifeq ($(subdir),elf) -CFLAGS-rtld.c += -mv8 +CFLAGS-rtld.c += -mcpu=v8 #rtld-routines += dl-sysdepsparc sysdep-others += lddlibc4 install-bin += lddlibc4 endif # elf + +ifeq ($(subdir),math) +# These 2 routines are normally in libgcc{.a,_s.so.1}. +# However, sparc32 -mlong-double-128 libgcc relies on +# glibc providing _Q_* routines and without these files +# glibc relies on __multc3/__divtc3 only provided +# by libgcc if configured with -mlong-double-128. +# Provide these routines here as well. +libm-routines += multc3 divtc3 +endif # math diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/chown.c b/sysdeps/unix/sysv/linux/sparc/sparc32/chown.c index 1961622564..374131695c 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/chown.c +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/chown.c @@ -1 +1 @@ -#include <sysdeps/unix/sysv/linux/m68k/chown.c> +#include <sysdeps/unix/sysv/linux/sh/chown.c> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S index 66cdbf3ca7..f91fc4f629 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S @@ -24,6 +24,7 @@ #include <asm/errno.h> #include <asm/unistd.h> #include <tcb-offsets.h> +#include <sysdep.h> #define CLONE_VM 0x00000100 #define CLONE_THREAD 0x00010000 @@ -32,19 +33,26 @@ pid_t *ptid, void *tls, pid_t *ctid); */ .text - .align 4 - .globl __clone - .type __clone,@function - -__clone: +ENTRY (__clone) save %sp,-96,%sp + cfi_def_cfa_register(%fp) + cfi_window_save + cfi_register(%o7, %i7) /* sanity check arguments */ - tst %i0 + orcc %i0,%g0,%g2 be .Lerror orcc %i1,%g0,%o1 be .Lerror mov %i2,%o0 + + /* The child_stack is the top of the stack, allocate one + whole stack frame from that as this is what the kernel + expects. */ + sub %o1, 96, %o1 + mov %i3, %g3 + mov %i2, %g4 + /* ptid */ mov %i4,%o2 /* tls */ @@ -59,39 +67,43 @@ __clone: tst %o1 bne __thread_start nop - ret + jmpl %i7 + 8, %g0 restore %o0,%g0,%o0 .Lerror: call __errno_location or %g0,EINVAL,%i0 st %i0,[%o0] - ret + jmpl %i7 + 8, %g0 restore %g0,-1,%o0 - - .size __clone, .-__clone +END(__clone) .type __thread_start,@function - __thread_start: + cfi_startproc + #ifdef RESET_PID sethi %hi(CLONE_THREAD), %l0 - andcc %i2, %l0, %g0 + andcc %g4, %l0, %g0 bne 1f - andcc %i2, CLONE_VM, %g0 + andcc %g4, CLONE_VM, %g0 bne,a 2f mov -1,%o0 set __NR_getpid,%g1 ta 0x10 -2: st %o0,[%g7 + PID] +2: + st %o0,[%g7 + PID] st %o0,[%g7 + TID] 1: #endif - call %i0 - mov %i3,%o0 + mov %g0, %fp /* terminate backtrace */ + call %g2 + mov %g3,%o0 call _exit,0 nop + cfi_endproc + .size __thread_start, .-__thread_start -weak_alias(__clone, clone) +weak_alias (__clone, clone) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c b/sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c deleted file mode 100644 index e9042d9717..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c +++ /dev/null @@ -1,64 +0,0 @@ -/* Data for Linux/sparc32 version of processor capability information. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* This information must be kept in sync with the _DL_HWCAP_COUNT - definition in procinfo.h. - - If anything should be added here check whether the size of each string - is still ok with the given array size. - - All the #ifdefs in the definitions ar equite irritating but - necessary if we want to avoid duplicating the information. There - are three different modes: - - - PROCINFO_DECL is defined. This means we are only interested in - declarations. - - - PROCINFO_DECL is not defined: - - + if SHARED is defined the file is included in an array - initializer. The .element = { ... } syntax is needed. - - + if SHARED is not defined a normal array initialization is - needed. - */ - -#ifndef PROCINFO_CLASS -#define PROCINFO_CLASS -#endif - -#if !defined PROCINFO_DECL && defined SHARED - ._dl_sparc32_cap_flags -#else -PROCINFO_CLASS const char _dl_sparc32_cap_flags[6][7] -#endif -#ifndef PROCINFO_DECL -= { - "flush", "stbar", "swap", "muldiv", "v9", "ultra3" - } -#endif -#if !defined SHARED || defined PROCINFO_DECL -; -#else -, -#endif - -#undef PROCINFO_DECL -#undef PROCINFO_CLASS diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h b/sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h deleted file mode 100644 index 82a94fca9c..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h +++ /dev/null @@ -1,75 +0,0 @@ -/* Linux/sparc32 version of processor capability information handling macros. - Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _DL_PROCINFO_H -#define _DL_PROCINFO_H 1 - -#include <ldsodefs.h> - -#define _DL_HWCAP_COUNT 6 - -static inline int -__attribute__ ((unused)) -_dl_procinfo (int word) -{ - int i; - - _dl_printf ("AT_HWCAP: "); - - for (i = 0; i < _DL_HWCAP_COUNT; ++i) - if (word & (1 << i)) - _dl_printf (" %s", GLRO(dl_sparc32_cap_flags)[i]); - - _dl_printf ("\n"); - - return 0; -} - -static inline const char * -__attribute__ ((unused)) -_dl_hwcap_string (int idx) -{ - return GLRO(dl_sparc32_cap_flags)[idx]; -}; - -static inline int -__attribute__ ((unused, always_inline)) -_dl_string_hwcap (const char *str) -{ - int i; - for (i = 0; i < _DL_HWCAP_COUNT; i++) - { - if (strcmp (str, GLRO(dl_sparc32_cap_flags) [i]) == 0) - return i; - } - return -1; -}; - -#define HWCAP_IMPORTANT (HWCAP_SPARC_V9|HWCAP_SPARC_ULTRA3) - -/* There are no different platforms defined. */ -#define _dl_platform_string(idx) "" - -/* There're no platforms to filter out. */ -#define _DL_HWCAP_PLATFORM 0 - -#define _dl_string_platform(str) (-1) - -#endif /* dl-procinfo.h */ diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c b/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c new file mode 100644 index 0000000000..dfed76aeb4 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/fchownat.c> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies b/sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies new file mode 100644 index 0000000000..dbcd1e9e6f --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies @@ -0,0 +1,2 @@ +# We must list this here to move it ahead of the ldbl-opt code. +sparc/sparc32/fpu diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fxstatat.c b/sysdeps/unix/sysv/linux/sparc/sparc32/fxstatat.c new file mode 100644 index 0000000000..0f8b3135d8 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/fxstatat.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/fxstatat.c> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/nldbl-abi.h b/sysdeps/unix/sysv/linux/sparc/sparc32/nldbl-abi.h new file mode 100644 index 0000000000..bd985cc59c --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/nldbl-abi.h @@ -0,0 +1,8 @@ +/* ABI version for long double switch. + This is used by the Versions and math_ldbl_opt.h files in + sysdeps/ieee754/ldbl-opt/. It gives the ABI version where + long double == double was replaced with proper long double + for libm *l functions and libc functions using long double. */ + +#define NLDBL_VERSION GLIBC_2.4 +#define LONG_DOUBLE_COMPAT_VERSION GLIBC_2_4 diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S b/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S index 27ea9f8912..dbe0872616 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S @@ -19,20 +19,22 @@ #include <sysdep.h> - .globl __libc_pipe -ENTRY (__libc_pipe) - mov %o0, %o2 /* Save PIPEDES. */ - mov SYS_ify(pipe),%g1 - ta 0x10 - bcs __syscall_error_handler - nop - st %o0, [%o2] /* PIPEDES[0] = %o0; */ - st %o1, [%o2 + 4] /* PIPEDES[1] = %o1; */ + .text + .globl __syscall_error +ENTRY(__libc_pipe) + mov %o0, %o2 /* Save PIPEDES. */ + mov SYS_ify(pipe),%g1 + ta 0x10 + bcc 1f + mov %o7, %g1 + call __syscall_error + mov %g1, %o7 +1: st %o0, [%o2] /* PIPEDES[0] = %o0; */ + st %o1, [%o2 + 4] /* PIPEDES[1] = %o1; */ retl - clr %o0 - SYSCALL_ERROR_HANDLER + clr %o0 +END(__libc_pipe) -PSEUDO_END (__libc_pipe) weak_alias (__libc_pipe, __pipe) libc_hidden_def (__pipe) weak_alias (__libc_pipe, pipe) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c b/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c index b28f009b06..64d47b34c5 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c @@ -1,6 +1,6 @@ /* Semctl for architectures where word sized unions are passed indirectly - Copyright (C) 1995, 1997, 1998, 2000, 2002, 2003, 2004 - Free Software Foundation, Inc. + Copyright (C) 1995,1997,1998,2000,2002,2003,2004,2006 + Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. @@ -28,7 +28,7 @@ #include <string.h> #include <sys/syscall.h> -#include "kernel-features.h" +#include <kernel-features.h> #include <shlib-compat.h> struct __old_semid_ds diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c index 7fb6459d77..3be801a932 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c @@ -1,5 +1,5 @@ /* POSIX.1 sigaction call for Linux/SPARC. - Copyright (C) 1997,1998,1999,2000,2002,2003 Free Software Foundation, Inc. + Copyright (C) 1997-2000,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx), 1997. @@ -132,6 +132,10 @@ __libc_sigaction (int sig, __const struct sigaction *act, } libc_hidden_def (__libc_sigaction) +#ifdef WRAPPER_INCLUDE +# include WRAPPER_INCLUDE +#endif + #ifndef LIBC_SIGACTION weak_alias (__libc_sigaction, __sigaction); libc_hidden_weak (__sigaction) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S b/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S index 3c12278e6a..71a63d5b79 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S @@ -40,10 +40,14 @@ The .S files for the other calls just #define socket and #include this. */ #ifndef __socket -#define __socket P(__,socket) +# ifndef NO_WEAK_ALIAS +# define __socket P(__,socket) +# else +# define __socket socket +# endif #endif -.globl __socket + .globl __syscall_error ENTRY (__socket) /* Drop up to 6 arguments (recvfrom) into the memory allocated by @@ -72,18 +76,19 @@ ENTRY (__socket) add %sp, 68, %o1 /* arg 2: parameter block */ LOADSYSCALL(socketcall) t 0x10 - bcs __syscall_error_handler - nop - retl + bcc 1f + mov %o7, %g1 + call __syscall_error + mov %g1, %o7 +1: jmpl %o7 + 8, %g0 nop #if defined NEED_CANCELLATION && defined CENABLE .Lsocket_cancel: - cfi_startproc save %sp, -96, %sp - cfi_def_cfa_register (%fp) + cfi_def_cfa_register(%fp) cfi_window_save - cfi_register (%o7, %i7) + cfi_register(%o7, %i7) CENABLE nop mov %o0, %l0 @@ -91,18 +96,22 @@ ENTRY (__socket) mov P(SOCKOP_,socket), %o0 LOADSYSCALL(socketcall) t 0x10 - bcs __syscall_error_handler2 + bcc 1f mov %o0, %l1 - CDISABLE + CDISABLE; + mov %l0, %o0; + call __syscall_error; + mov %l1, %o0; + b 1f + mov -1, %l1; +1: CDISABLE mov %l0, %o0 - jmpl %i7 + 8, %g0 +2: jmpl %i7 + 8, %g0 restore %g0, %l1, %o0 - cfi_endproc - SYSCALL_ERROR_HANDLER2 #endif - SYSCALL_ERROR_HANDLER - END (__socket) +#ifndef NO_WEAK_ALIAS weak_alias (__socket, socket) +#endif diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/Implies b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/Implies deleted file mode 100644 index 17ed964f79..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/Implies +++ /dev/null @@ -1 +0,0 @@ -unix/sysv/linux/sparc/sparc32/sparcv9 diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/syscall.S b/sysdeps/unix/sysv/linux/sparc/sparc32/syscall.S index 3b135c8e86..1610745524 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/syscall.S +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/syscall.S @@ -17,8 +17,10 @@ 02111-1307 USA. */ #include <sysdep.h> + .text -ENTRY (syscall) + .globl __syscall_error +ENTRY(syscall) mov %o0, %g1 mov %o1, %o0 mov %o2, %o1 @@ -26,10 +28,10 @@ ENTRY (syscall) mov %o4, %o3 mov %o5, %o4 ta 0x10 - bcs __syscall_error_handler - nop - retl + bcc 1f + mov %o7, %g1 + call __syscall_error + mov %g1, %o7 +1: retl nop - SYSCALL_ERROR_HANDLER - -PSEUDO_END (syscall) +END(syscall) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h index 29c5158b9f..c808a97fc5 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1997, 2002, 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997. @@ -38,131 +38,54 @@ #undef PSEUDO #undef PSEUDO_NOERRNO #undef PSEUDO_ERRVAL +#undef PSEUDO_END #undef ENTRY #undef END #undef LOC -#define ENTRY(name) \ - .global C_SYMBOL_NAME(name); \ - .align 4;\ - C_LABEL(name);\ - .type name,@function; +#define ENTRY(name) \ + .align 4; \ + .global C_SYMBOL_NAME(name); \ + .type name, @function; \ +C_LABEL(name) \ + cfi_startproc; -#define END(name) \ +#define END(name) \ + cfi_endproc; \ .size name, . - name #define LOC(name) .L##name -#ifdef LINKER_HANDLES_R_SPARC_WDISP22 -/* Unfortunately, we cannot do this yet. Linker doesn't seem to - handle R_SPARC_WDISP22 against non-STB_LOCAL symbols properly . */ -# define SYSCALL_ERROR_HANDLER_ENTRY(handler) \ - .section .gnu.linkonce.t.handler,"ax",@progbits; \ - .globl handler; \ - .hidden handler; \ - .type handler,@function; \ -handler: -#else -# define SYSCALL_ERROR_HANDLER_ENTRY(handler) \ - .subsection 3; \ -handler: -#endif - -#if RTLD_PRIVATE_ERRNO -# define SYSCALL_ERROR_HANDLER \ - .section .gnu.linkonce.t.__sparc_get_pic_l7,"ax",@progbits; \ - .globl __sparc_get_pic_l7; \ - .hidden __sparc_get_pic_l7; \ - .type __sparc_get_pic_l7,@function; \ -__sparc_get_pic_l7: \ - retl; \ - add %o7, %l7, %l7; \ - .previous; \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ - save %sp,-96,%sp; \ - sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \ - call __sparc_get_pic_l7; \ - add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \ - ld [%l7 + rtld_errno], %l0; \ - st %i0, [%l0]; \ - jmpl %i7+8, %g0; \ - restore %g0, -1, %o0; \ - .previous; -#elif USE___THREAD -# ifndef NOT_IN_libc -# define SYSCALL_ERROR_ERRNO __libc_errno -# else -# define SYSCALL_ERROR_ERRNO errno -# endif -# ifdef SHARED -# define SYSCALL_ERROR_HANDLER \ - .section .gnu.linkonce.t.__sparc_get_pic_l7,"ax",@progbits; \ - .globl __sparc_get_pic_l7; \ - .hidden __sparc_get_pic_l7; \ - .type __sparc_get_pic_l7,@function; \ -__sparc_get_pic_l7: \ - retl; \ - add %o7, %l7, %l7; \ - .previous; \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ - save %sp,-96,%sp; \ - sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %l1; \ - sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \ - call __sparc_get_pic_l7; \ - add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \ - add %l1, %tie_lo10(SYSCALL_ERROR_ERRNO), %l1; \ - ld [%l7 + %l1], %l1, %tie_ld(SYSCALL_ERROR_ERRNO); \ - st %i0, [%g7 + %l1], %tie_add(SYSCALL_ERROR_ERRNO); \ - jmpl %i7+8, %g0; \ - restore %g0, -1, %o0; \ - .previous; -# else -# define SYSCALL_ERROR_HANDLER \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ - sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %g1; \ - sethi %hi(_GLOBAL_OFFSET_TABLE_), %g2; \ - add %g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1; \ - add %g2, %lo(_GLOBAL_OFFSET_TABLE_), %g2; \ - ld [%g2 + %g1], %g1, %tie_ld(SYSCALL_ERROR_ERRNO); \ - st %o0, [%g7 + %g1], %tie_add(SYSCALL_ERROR_ERRNO); \ - jmpl %o7+8, %g0; \ - mov -1, %o0; \ - .previous; -# endif -#else -# define SYSCALL_ERROR_HANDLER \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ - .global __errno_location; \ - .type __errno_location,@function; \ - save %sp, -96, %sp; \ - call __errno_location; \ - nop; \ - st %i0, [%o0]; \ - jmpl %i7+8, %g0; \ - restore %g0, -1, %o0; \ - .previous; -#endif - -#define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY(name); \ - LOADSYSCALL(syscall_name); \ - ta 0x10; \ - bcs __syscall_error_handler; \ - nop; \ - SYSCALL_ERROR_HANDLER - -#define PSEUDO_NOERRNO(name, syscall_name, args) \ - .text; \ - ENTRY(name); \ - LOADSYSCALL(syscall_name); \ - ta 0x10 - -#define PSEUDO_ERRVAL(name, syscall_name, args) \ - .text; \ - ENTRY(name); \ - LOADSYSCALL(syscall_name); \ - ta 0x10 + /* If the offset to __syscall_error fits into a signed 22-bit + * immediate branch offset, the linker will relax the call into + * a normal branch. + */ +#define PSEUDO(name, syscall_name, args) \ + .text; \ + .globl __syscall_error; \ +ENTRY(name); \ + LOADSYSCALL(syscall_name); \ + ta 0x10; \ + bcc 1f; \ + mov %o7, %g1; \ + call __syscall_error; \ + mov %g1, %o7; \ +1: + +#define PSEUDO_NOERRNO(name, syscall_name, args)\ + .text; \ +ENTRY(name); \ + LOADSYSCALL(syscall_name); \ + ta 0x10; + +#define PSEUDO_ERRVAL(name, syscall_name, args) \ + .text; \ +ENTRY(name); \ + LOADSYSCALL(syscall_name); \ + ta 0x10; + +#define PSEUDO_END(name) \ + END(name) #else /* __ASSEMBLER__ */ @@ -214,4 +137,24 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ #endif /* __ASSEMBLER__ */ +/* Pointer mangling support. */ +#if defined NOT_IN_libc && defined IS_IN_rtld +/* We cannot use the thread descriptor because in ld.so we use setjmp + earlier than the descriptor is initialized. */ +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(dreg, reg, tmpreg) \ + ld [%g7 + POINTER_GUARD], tmpreg; \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE(dreg, reg, tmpreg) PTR_MANGLE (dreg, reg, tmpreg) +# define PTR_MANGLE2(dreg, reg, tmpreg) \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE2(dreg, reg, tmpreg) PTR_MANGLE2 (dreg, reg, tmpreg) +# else +# define PTR_MANGLE(var) \ + (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ()) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#endif + #endif /* linux/sparc/sysdep.h */ |