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* sysdeps/m68k/add_n.S: Use ENTRY and END macros.
* sysdeps/m68k/lshift.S: Likewise. * sysdeps/m68k/rshift.S: Likewise. * sysdeps/m68k/sub_n.S: Likewise. * sysdeps/m68k/m68020/addmul_1.S: Likewise. * sysdeps/m68k/m68020/mul_1.S: Likewise. * sysdeps/m68k/m68020/submul_1.S: Likewise. * sysdeps/unix/sysv/linux/m68k/sysdep.S: Use ENTRY macro. [_LIBC_REENTRANT]: Don't store into global errno. * sysdeps/m68k/sysdep.h: New file. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Use it. Use the macros ENTRY, CALL_MCOUNT, JUMPTARGET and syscall_error from there. (DO_CALL): Change to expect syscall name as argument. (PSEUDO): Pass syscall_name to DO_CALL. (SYSCALL_ERROR_HANDLER) [_LIBC_REENTRANT]: Don't store into global errno. Fri Mar 6 10:40:30 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/add_n.S: Use ENTRY and END macros. * sysdeps/m68k/lshift.S: Likewise. * sysdeps/m68k/rshift.S: Likewise. * sysdeps/m68k/sub_n.S: Likewise. * sysdeps/m68k/m68020/addmul_1.S: Likewise. * sysdeps/m68k/m68020/mul_1.S: Likewise. * sysdeps/m68k/m68020/submul_1.S: Likewise. * sysdeps/unix/sysv/linux/m68k/sysdep.S: Use ENTRY macro. [_LIBC_REENTRANT]: Don't store into global errno. * sysdeps/m68k/sysdep.h: New file. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Use it. Use the macros ENTRY, CALL_MCOUNT, JUMPTARGET and syscall_error from there. (DO_CALL): Change to expect syscall name as argument. (PSEUDO): Pass syscall_name to DO_CALL. (SYSCALL_ERROR_HANDLER) [_LIBC_REENTRANT]: Don't store into global errno.
This commit is contained in:
Andreas Schwab
parent
b5efde2fd3
commit
9f2990dbbf
21
ChangeLog
21
ChangeLog
@ -1,3 +1,24 @@
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Fri Mar 6 10:40:30 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
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* sysdeps/m68k/add_n.S: Use ENTRY and END macros.
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* sysdeps/m68k/lshift.S: Likewise.
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* sysdeps/m68k/rshift.S: Likewise.
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* sysdeps/m68k/sub_n.S: Likewise.
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* sysdeps/m68k/m68020/addmul_1.S: Likewise.
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* sysdeps/m68k/m68020/mul_1.S: Likewise.
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* sysdeps/m68k/m68020/submul_1.S: Likewise.
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* sysdeps/unix/sysv/linux/m68k/sysdep.S: Use ENTRY macro.
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[_LIBC_REENTRANT]: Don't store into global errno.
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* sysdeps/m68k/sysdep.h: New file.
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* sysdeps/unix/sysv/linux/m68k/sysdep.h: Use it. Use the macros
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ENTRY, CALL_MCOUNT, JUMPTARGET and syscall_error from there.
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(DO_CALL): Change to expect syscall name as argument.
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(PSEUDO): Pass syscall_name to DO_CALL.
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(SYSCALL_ERROR_HANDLER) [_LIBC_REENTRANT]: Don't store into global
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errno.
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1998-03-05 Ulrich Drepper <drepper@cygnus.com>
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* elf/rtld.c: Speed up processing of environment variables. Do
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@ -1,7 +1,7 @@
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/* mc68020 __mpn_add_n -- Add two limb vectors of the same length > 0 and store
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sum in a third limb vector.
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Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
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Copyright (C) 1992, 1994, 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -32,11 +32,7 @@ MA 02111-1307, USA. */
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#include "asm-syntax.h"
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_add_n)
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C_SYMBOL_NAME(__mpn_add_n:)
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PROLOG(__mpn_add_n)
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ENTRY(__mpn_add_n)
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/* Save used registers on the stack. */
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movel R(d2),MEM_PREDEC(sp)
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movel R(a2),MEM_PREDEC(sp)
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@ -77,4 +73,4 @@ L(L2:)
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movel MEM_POSTINC(sp),R(d2)
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rts
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EPILOG(__mpn_add_n)
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END(__mpn_add_n)
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@ -1,6 +1,6 @@
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/* mc68020 __mpn_lshift -- Shift left a low-level natural-number integer.
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Copyright (C) 1996 Free Software Foundation, Inc.
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Copyright (C) 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -36,11 +36,7 @@ MA 02111-1307, USA. */
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#define cnt d4
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_lshift)
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C_SYMBOL_NAME(__mpn_lshift:)
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PROLOG(__mpn_lshift)
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ENTRY(__mpn_lshift)
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/* Save used registers on the stack. */
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moveml R(d2)-R(d6)/R(a2),MEM_PREDEC(sp)
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@ -148,4 +144,4 @@ L(LLend:)
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/* Restore used registers from stack frame. */
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moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
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rts
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EPILOG(__mpn_lshift)
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END(__mpn_lshift)
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@ -1,7 +1,7 @@
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/* mc68020 __mpn_addmul_1 -- Multiply a limb vector with a limb and add
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the result to a second limb vector.
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Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
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Copyright (C) 1992, 1994, 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -32,11 +32,7 @@ MA 02111-1307, USA. */
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#include "asm-syntax.h"
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_addmul_1)
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C_SYMBOL_NAME(__mpn_addmul_1:)
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PROLOG(__mpn_addmul_1)
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ENTRY(__mpn_addmul_1)
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#define res_ptr a0
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#define s1_ptr a1
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@ -81,4 +77,4 @@ L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
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moveml MEM_POSTINC(sp),R(d2)-R(d5)
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rts
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EPILOG(__mpn_addmul_1)
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END(__mpn_addmul_1)
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@ -1,7 +1,7 @@
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/* mc68020 __mpn_mul_1 -- Multiply a limb vector with a limb and store
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the result in a second limb vector.
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Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
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Copyright (C) 1992, 1994, 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -32,11 +32,7 @@ MA 02111-1307, USA. */
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#include "asm-syntax.h"
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_mul_1)
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C_SYMBOL_NAME(__mpn_mul_1:)
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PROLOG(__mpn_mul_1)
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ENTRY(__mpn_mul_1)
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#define res_ptr a0
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#define s1_ptr a1
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@ -88,4 +84,4 @@ L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
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movel MEM_POSTINC(sp),R(d2)
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#endif
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rts
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EPILOG(__mpn_mul_1)
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END(__mpn_mul_1)
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@ -1,7 +1,7 @@
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/* mc68020 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
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the result from a second limb vector.
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Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
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Copyright (C) 1992, 1994, 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -32,11 +32,7 @@ MA 02111-1307, USA. */
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#include "asm-syntax.h"
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_submul_1)
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C_SYMBOL_NAME(__mpn_submul_1:)
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PROLOG(__mpn_submul_1)
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ENTRY(__mpn_submul_1)
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#define res_ptr a0
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#define s1_ptr a1
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@ -81,4 +77,4 @@ L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
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moveml MEM_POSTINC(sp),R(d2)-R(d5)
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rts
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EPILOG(__mpn_submul_1)
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END(__mpn_submul_1)
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@ -1,6 +1,6 @@
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/* mc68020 __mpn_rshift -- Shift right a low-level natural-number integer.
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Copyright (C) 1996 Free Software Foundation, Inc.
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Copyright (C) 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -36,11 +36,7 @@ MA 02111-1307, USA. */
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#define cnt d4
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_rshift)
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C_SYMBOL_NAME(__mpn_rshift:)
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PROLOG(__mpn_rshift)
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ENTRY(__mpn_rshift)
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/* Save used registers on the stack. */
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moveml R(d2)-R(d6)/R(a2),MEM_PREDEC(sp)
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@ -147,4 +143,4 @@ L(LLend:)
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/* Restore used registers from stack frame. */
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moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
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rts
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EPILOG(__mpn_rshift)
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END(__mpn_rshift)
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@ -1,7 +1,7 @@
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/* mc68020 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
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store difference in a third limb vector.
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Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
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Copyright (C) 1992, 1994, 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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@ -32,11 +32,7 @@ MA 02111-1307, USA. */
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#include "asm-syntax.h"
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TEXT
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ALIGN
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GLOBL C_SYMBOL_NAME(__mpn_sub_n)
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C_SYMBOL_NAME(__mpn_sub_n:)
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PROLOG(__mpn_sub_n)
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ENTRY(__mpn_sub_n)
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/* Save used registers on the stack. */
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movel R(d2),MEM_PREDEC(sp)
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movel R(a2),MEM_PREDEC(sp)
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@ -77,4 +73,4 @@ L(L2:)
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movel MEM_POSTINC(sp),R(d2)
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rts
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EPILOG(__mpn_sub_n)
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END(__mpn_sub_n)
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118
sysdeps/m68k/sysdep.h
Normal file
118
sysdeps/m68k/sysdep.h
Normal file
@ -0,0 +1,118 @@
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/* Assembler macros for m68k.
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Copyright (C) 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdeps/generic/sysdep.h>
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#ifdef ASSEMBLER
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/* Syntactic details of assembler. */
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#ifdef HAVE_ELF
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/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */
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#define ALIGNARG(log2) 1<<log2
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/* For ELF we need the `.type' directive to make shared libs work right. */
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#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg
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#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
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/* In ELF C symbols are asm symbols. */
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#undef NO_UNDERSCORES
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#define NO_UNDERSCORES
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#else
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#define ALIGNARG(log2) log2
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#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */
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#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */
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#endif
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/* Define an entry point visible from C.
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There is currently a bug in gdb which prevents us from specifying
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incomplete stabs information. Fake some entries here which specify
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the current source file. */
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#define ENTRY(name) \
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STABS_CURRENT_FILE1(""); \
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STABS_CURRENT_FILE(name); \
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.globl C_SYMBOL_NAME(name); \
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ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function); \
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.align ALIGNARG(2); \
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STABS_FUN(name); \
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C_LABEL(name) \
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CALL_MCOUNT
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#undef END
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#define END(name) \
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ASM_SIZE_DIRECTIVE(name); \
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STABS_FUN_END(name)
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/* Remove the following two lines once the gdb bug is fixed. */
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#define STABS_CURRENT_FILE(name) \
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STABS_CURRENT_FILE1 (#name)
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#define STABS_CURRENT_FILE1(name) \
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1: .stabs name,100,0,0,1b
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/* Emit stabs definition lines. We use F(0,1) and define t(0,1) as `int',
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the same way gcc does it. */
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#define STABS_FUN(name) STABS_FUN1(name, name##:F(0,1))
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#define STABS_FUN1(name, namestr) \
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.stabs "int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,0,0; \
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.stabs #namestr,36,0,0,name
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#define STABS_FUN_END(name) \
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1: .stabs "",36,0,0,1b-name
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/* If compiled for profiling, call `_mcount' at the start of each function. */
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#ifdef PROF
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/* The mcount code relies on a normal frame pointer being on the stack
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to locate our caller, so push one just for its benefit. */
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#define CALL_MCOUNT \
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move.l %fp, -(%sp); move.l %sp, %fp; \
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jbsr JUMPTARGET (mcount); \
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move.l (%sp)+, %fp;
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#else
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#define CALL_MCOUNT /* Do nothing. */
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#endif
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#ifdef NO_UNDERSCORES
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/* Since C identifiers are not normally prefixed with an underscore
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on this system, the asm identifier `syscall_error' intrudes on the
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C name space. Make sure we use an innocuous name. */
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#define syscall_error __syscall_error
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#define mcount _mcount
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#endif
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#define PSEUDO(name, syscall_name, args) \
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.globl syscall_error; \
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ENTRY (name) \
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DO_CALL (syscall_name, args); \
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jcc JUMPTARGET(syscall_error)
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#undef PSEUDO_END
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#define PSEUDO_END(name) \
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END (name)
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#ifdef PIC
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#define JUMPTARGET(name) name##@PLTPC
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#else
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#define JUMPTARGET(name) name
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#endif
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#endif /* ASSEMBLER */
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@ -43,13 +43,15 @@ _errno = errno /* This name is expected by hj's libc.so.5 startup code. */
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/* The syscall stubs jump here when they detect an error. */
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.globl __syscall_error
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.type __syscall_error, @function
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.align 4
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__syscall_error:
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#undef CALL_MCOUNT
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#define CALL_MCOUNT /* Don't insert the profiling call, it clobbers %d0. */
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.text
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ENTRY (__syscall_error)
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neg.l %d0
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#ifndef _LIBC_REENTRANT
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move.l %d0, errno
|
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#ifdef _LIBC_REENTRANT
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||||
#else
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move.l %d0, -(%sp)
|
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jbsr __errno_location
|
||||
move.l (%sp)+, (%a0)
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||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* 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.
|
||||
Written by Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>,
|
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December 1995.
|
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@ -19,6 +19,7 @@
|
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Boston, MA 02111-1307, USA. */
|
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||||
#include <sysdeps/unix/sysdep.h>
|
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#include <sysdeps/m68k/sysdep.h>
|
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|
||||
/* For Linux we can use the system call table in the header file
|
||||
/usr/include/asm/unistd.h
|
||||
@ -33,40 +34,6 @@
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
|
||||
/* Define an entry point visible from C. */
|
||||
#define ENTRY(name) \
|
||||
.globl name; \
|
||||
.type name, @function; \
|
||||
.align 4; \
|
||||
C_LABEL(name) \
|
||||
CALL_MCOUNT
|
||||
|
||||
#undef END
|
||||
#define END(name) .size name, . - name
|
||||
|
||||
/* If compiled for profiling, call `_mcount' at the start of each function. */
|
||||
#ifdef PROF
|
||||
/* The mcount code relies on a normal frame pointer being on the stack
|
||||
to locate our caller, so push one just for its benefit. */
|
||||
#define CALL_MCOUNT \
|
||||
move.l %fp, -(%sp); move.l %sp, %fp; \
|
||||
jbsr JUMPTARGET (_mcount); \
|
||||
move.l (%sp)+, %fp;
|
||||
#else
|
||||
#define CALL_MCOUNT /* Do nothing. */
|
||||
#endif
|
||||
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) name##@PLTPC
|
||||
#else
|
||||
#define JUMPTARGET(name) name
|
||||
#endif
|
||||
|
||||
/* Since C identifiers are not normally prefixed with an underscore
|
||||
on this system, the asm identifier `syscall_error' intrudes on the
|
||||
C name space. Make sure we use an innocuous name. */
|
||||
#define syscall_error __syscall_error
|
||||
|
||||
/* Linux uses a negative return value to indicate syscall errors, unlike
|
||||
most Unices, which use the condition codes' carry flag.
|
||||
|
||||
@ -76,10 +43,11 @@
|
||||
for a real error by making sure the value in %d0 is a real error
|
||||
number. Linus said he will make sure the no syscall returns a value
|
||||
in -1 .. -4095 as a valid result so we can savely test with -4095. */
|
||||
#undef PSEUDO
|
||||
#define PSEUDO(name, syscall_name, args) \
|
||||
.text; \
|
||||
ENTRY (name) \
|
||||
DO_CALL (&SYS_ify (syscall_name), args); \
|
||||
DO_CALL (syscall_name, args); \
|
||||
cmp.l &-4095, %d0; \
|
||||
jcc syscall_error
|
||||
|
||||
@ -93,9 +61,6 @@
|
||||
#ifdef _LIBC_REENTRANT
|
||||
#define SYSCALL_ERROR_HANDLER \
|
||||
syscall_error: \
|
||||
move.l (errno@GOTPC, %pc), %a0; \
|
||||
neg.l %d0; \
|
||||
move.l %d0, (%a0); \
|
||||
move.l %d0, -(%sp); \
|
||||
jbsr __errno_location@PLTPC; \
|
||||
move.l (%sp)+, (%a0); \
|
||||
@ -145,8 +110,8 @@ syscall_error: \
|
||||
speed is more important, we don't use movem. Since %a0 and %a1 are
|
||||
scratch registers, we can use them for saving as well. */
|
||||
|
||||
#define DO_CALL(syscall, args) \
|
||||
move.l syscall, %d0; \
|
||||
#define DO_CALL(syscall_name, args) \
|
||||
move.l &SYS_ify(syscall_name), %d0; \
|
||||
DOARGS_##args \
|
||||
trap &0; \
|
||||
UNDOARGS_##args
|
||||
|
||||
Loading…
Reference in New Issue
Block a user