From 60dce8b9044155bb04eb310fb0fc5e9607b7d2e6 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Fri, 22 May 2015 08:36:08 -0300 Subject: Remove socket.S implementation This patch removes the socket.S implementation for all ports and replace it by a C implementation using socketcall. For ports that implement the syscall directly, there is no change. The patch idea is to simplify the socket function implementation that uses the socketcall to be based on C implemetation instead of a pseudo assembly implementation with arch specific parts. The patch then remove the assembly implementatation for the ports which uses socketcall (i386, microblaze, mips, powerpc, sparc, m68k, s390 and sh). I have cross-build GLIBC for afore-mentioned ports and tested on both i386 and ppc32 without regressions. --- sysdeps/unix/sysv/linux/sh/socket.S | 179 ------------------------------------ 1 file changed, 179 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/sh/socket.S (limited to 'sysdeps/unix/sysv/linux/sh') diff --git a/sysdeps/unix/sysv/linux/sh/socket.S b/sysdeps/unix/sysv/linux/sh/socket.S deleted file mode 100644 index ee99e840c1..0000000000 --- a/sysdeps/unix/sysv/linux/sh/socket.S +++ /dev/null @@ -1,179 +0,0 @@ -/* Copyright (C) 1999-2015 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 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, see - . */ - -#include -#include -#include - -#define P(a, b) P2(a, b) -#define P2(a, b) a##b - - .text -/* The socket-oriented system calls are handled unusally in Linux. - They are all gated through the single `socketcall' system call number. - `socketcall' takes two arguments: the first is the subcode, specifying - which socket function is being called; and the second is a pointer to - the arguments to the specific function. - - The .S files for the other calls just #define socket and #include this. */ - -#ifndef __socket -#ifndef NO_WEAK_ALIAS -#define __socket P(__,socket) -#else -#define __socket socket -#endif -#endif - -#define PUSHARGS_1 mov.l r4,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r4, 0) -#define PUSHARGS_2 mov.l r5,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r5, 0); \ - PUSHARGS_1 -#define PUSHARGS_3 mov.l r6,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r6, 0); \ - PUSHARGS_2 -#define PUSHARGS_4 mov.l r7,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r7, 0); \ - PUSHARGS_3 -#define PUSHARGS_5 PUSHARGS_4 /* Caller has already pushed arg 5 */ -#define PUSHARGS_6 PUSHARGS_4 /* Caller has already pushed arg 5,6 */ - -#define POPARGS_1 add #4,r15; cfi_adjust_cfa_offset (-4) -#define POPARGS_2 add #8,r15; cfi_adjust_cfa_offset (-8) -#define POPARGS_3 add #12,r15; cfi_adjust_cfa_offset (-12) -#define POPARGS_4 add #16,r15; cfi_adjust_cfa_offset (-16) -#define POPARGS_5 POPARGS_4 -#define POPARGS_6 POPARGS_4 - -#define ADJUSTCFI_1 cfi_adjust_cfa_offset (4); \ - cfi_offset (r4, -4) -#define ADJUSTCFI_2 cfi_adjust_cfa_offset (8); \ - cfi_offset (r4, -4); \ - cfi_offset (r5, -8) -#define ADJUSTCFI_3 cfi_adjust_cfa_offset (12); \ - cfi_offset (r4, -4); \ - cfi_offset (r5, -8); \ - cfi_offset (r6, -12) -#define ADJUSTCFI_4 cfi_adjust_cfa_offset (16); \ - cfi_offset (r4, -4); \ - cfi_offset (r5, -8); \ - cfi_offset (r6, -12); \ - cfi_offset (r7, -16) -#define ADJUSTCFI_5 ADJUSTCFI_4 -#define ADJUSTCFI_6 ADJUSTCFI_4 - -#ifndef NARGS -/* If we were called with no wrapper, this is really socket(). */ -#define NARGS 3 -#endif - -.globl __socket -ENTRY (__socket) - /* This will not work in the case of a socket call being interrupted - by a signal. If the signal handler uses any stack the arguments - to socket will be trashed. The results of a restart of any - socket call are then unpredictable. */ - - /* Push args onto the stack. */ - P(PUSHARGS_,NARGS) - -#if defined NEED_CANCELLATION && defined CENABLE - SINGLE_THREAD_P - bf .Lsocket_cancel -#endif - - /* Do the system call trap. */ - mov #+P(SOCKOP_,socket), r4 - mov r15, r5 - mov.l .L1,r3 - trapa #0x12 - - /* Pop args off the stack */ - P(POPARGS_,NARGS) - - mov r0, r1 - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lpseudo_end -.Lsyscall_error: - SYSCALL_ERROR_HANDLER -.Lpseudo_end: - /* Successful; return the syscall's value. */ - rts - nop - -#if defined NEED_CANCELLATION && defined CENABLE -.Lsocket_cancel: - /* Enable asynchronous cancellation. */ - P(ADJUSTCFI_,NARGS) - sts.l pr,@-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (pr, 0) - CENABLE - lds.l @r15+,pr - cfi_adjust_cfa_offset (-4) - cfi_restore (pr) - - /* Do the system call trap. */ - mov #+P(SOCKOP_,socket), r4 - mov r15, r5 - mov.l .L1,r3 - trapa #0x12 - - sts.l pr,@-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (pr, 0) - mov.l r0,@-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r0, 0) - CDISABLE - mov.l @r15+,r0 - cfi_adjust_cfa_offset (-4) - cfi_restore (r0) - lds.l @r15+,pr - cfi_adjust_cfa_offset (-4) - cfi_restore (pr) - - /* Pop args off the stack */ - P(POPARGS_,NARGS) - - mov r0, r1 - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lpseudo_end - bra .Lsyscall_error - nop -#endif - - .align 2 -.L1: - .long SYS_ify(socketcall) - -PSEUDO_END (__socket) - -#ifndef NO_WEAK_ALIAS -weak_alias (__socket, socket) -#endif -- cgit 1.4.1