glibc-2.2.5-hhl-powerpc-fpu.patch

linux下编译交叉工具链的工具源码

# See http://sources.redhat.com/ml/crossgcc/2002-05/msg00132.html
# This patch is taken directly from the Montavista Hard Hat Linux 2.0 source RPMs,
# but has been rediffed against glibc-2.2.5

diff -Naur glibc-2.2.5.old/sysdeps/powerpc/Dist glibc-2.2.5/sysdeps/powerpc/Dist
--- glibc-2.2.5.old/sysdeps/powerpc/Dist	Fri Jun 30 23:30:21 2000
+++ glibc-2.2.5/sysdeps/powerpc/Dist	Thu Jul 10 11:43:17 2003
@@ -1,9 +1,6 @@
 dl-machine.c
 dl-start.S
 ppc-mcount.S
-fe_nomask.c
-fprrest.S
-fprsave.S
 gprsave1.S
 gprsave0.S
 gprrest1.S
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/Makefile glibc-2.2.5/sysdeps/powerpc/Makefile
--- glibc-2.2.5.old/sysdeps/powerpc/Makefile	Mon Nov 27 15:32:47 2000
+++ glibc-2.2.5/sysdeps/powerpc/Makefile	Thu Jul 10 11:43:17 2003
@@ -3,16 +3,12 @@
 +cflags += -mnew-mnemonics -Wa,-mppc -mpowerpc
 asm-CPPFLAGS += -Wa,-mppc
 
-ifeq ($(subdir),math)
-libm-support += fenv_const fe_nomask
-endif
-
 ifeq ($(subdir),gmon)
 sysdep_routines += ppc-mcount
 endif
 
 ifeq ($(subdir),misc)
-sysdep_routines += gprsave0 gprrest0 gprsave1 gprrest1 fprsave fprrest
+sysdep_routines += gprsave0 gprrest0 gprsave1 gprrest1
 endif
 
 # On PPC, -fpic works until the GOT contains 2^15 bytes, and possibly
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/Versions glibc-2.2.5/sysdeps/powerpc/Versions
--- glibc-2.2.5.old/sysdeps/powerpc/Versions	Mon Feb 28 13:27:57 2000
+++ glibc-2.2.5/sysdeps/powerpc/Versions	Thu Jul 10 11:43:17 2003
@@ -1,8 +1,4 @@
 libm {
-  GLIBC_2.1 {
-    # symbols used in macros from sysdeps/powerpc/bits/fenv.h
-    __fe_dfl_env; __fe_enabled_env; __fe_nonieee_env; __fe_nomask_env;
-  }
   GLIBC_2.2 {
     # Special functions to save and restore registers used by the
     # runtime libraries.
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/__longjmp.S glibc-2.2.5/sysdeps/powerpc/__longjmp.S
--- glibc-2.2.5.old/sysdeps/powerpc/__longjmp.S	Thu Jul  5 21:56:01 2001
+++ glibc-2.2.5/sysdeps/powerpc/__longjmp.S	Thu Jul 10 11:43:17 2003
@@ -24,6 +24,8 @@
 #include <bp-sym.h>
 #include <bp-asm.h>
 
+/* The FPU loads have been removed from this file - see fpu/__longjmp.S */
+
 ENTRY (BP_SYM (__longjmp))
 	CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
 
@@ -31,44 +33,26 @@
 	lwz r2,(JB_GPR2*4)(r3)
 	lwz r0,(JB_LR*4)(r3)
 	lwz r14,((JB_GPRS+0)*4)(r3)
-	lfd fp14,((JB_FPRS+0*2)*4)(r3)
 	lwz r15,((JB_GPRS+1)*4)(r3)
-	lfd fp15,((JB_FPRS+1*2)*4)(r3)
 	lwz r16,((JB_GPRS+2)*4)(r3)
-	lfd fp16,((JB_FPRS+2*2)*4)(r3)
 	lwz r17,((JB_GPRS+3)*4)(r3)
-	lfd fp17,((JB_FPRS+3*2)*4)(r3)
 	lwz r18,((JB_GPRS+4)*4)(r3)
-	lfd fp18,((JB_FPRS+4*2)*4)(r3)
 	lwz r19,((JB_GPRS+5)*4)(r3)
-	lfd fp19,((JB_FPRS+5*2)*4)(r3)
 	lwz r20,((JB_GPRS+6)*4)(r3)
-	lfd fp20,((JB_FPRS+6*2)*4)(r3)
 	mtlr r0
 	lwz r21,((JB_GPRS+7)*4)(r3)
-	lfd fp21,((JB_FPRS+7*2)*4)(r3)
 	lwz r22,((JB_GPRS+8)*4)(r3)
-	lfd fp22,((JB_FPRS+8*2)*4)(r3)
 	lwz r0,(JB_CR*4)(r3)
 	lwz r23,((JB_GPRS+9)*4)(r3)
-	lfd fp23,((JB_FPRS+9*2)*4)(r3)
 	lwz r24,((JB_GPRS+10)*4)(r3)
-	lfd fp24,((JB_FPRS+10*2)*4)(r3)
 	lwz r25,((JB_GPRS+11)*4)(r3)
-	lfd fp25,((JB_FPRS+11*2)*4)(r3)
 	mtcrf 0xFF,r0
 	lwz r26,((JB_GPRS+12)*4)(r3)
-	lfd fp26,((JB_FPRS+12*2)*4)(r3)
 	lwz r27,((JB_GPRS+13)*4)(r3)
-	lfd fp27,((JB_FPRS+13*2)*4)(r3)
 	lwz r28,((JB_GPRS+14)*4)(r3)
-	lfd fp28,((JB_FPRS+14*2)*4)(r3)
 	lwz r29,((JB_GPRS+15)*4)(r3)
-	lfd fp29,((JB_FPRS+15*2)*4)(r3)
 	lwz r30,((JB_GPRS+16)*4)(r3)
-	lfd fp30,((JB_FPRS+16*2)*4)(r3)
 	lwz r31,((JB_GPRS+17)*4)(r3)
-	lfd fp31,((JB_FPRS+17*2)*4)(r3)
 	mr r3,r4
 	blr
 END (BP_SYM (__longjmp))
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/bits/setjmp.h glibc-2.2.5/sysdeps/powerpc/bits/setjmp.h
--- glibc-2.2.5.old/sysdeps/powerpc/bits/setjmp.h	Thu Jul  5 21:56:01 2001
+++ glibc-2.2.5/sysdeps/powerpc/bits/setjmp.h	Thu Jul 10 11:43:17 2003
@@ -17,6 +17,7 @@
    02111-1307 USA.  */
 
 /* Define the machine-dependent type `jmp_buf'.  PowerPC version.  */
+/* For processors without floating point. */
 
 #ifndef _SETJMP_H
 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
@@ -33,12 +34,11 @@
 # define JB_LR     2  /* The address we will return to */
 # define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total */
 # define JB_CR     21 /* Condition code registers. */
-# define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total */
-# define JB_SIZE   (58*4)
+# define JB_SIZE   (22*4)
 #endif
 
 #ifndef	_ASM
-typedef long int __jmp_buf[58];
+typedef long int __jmp_buf[22];
 #endif
 
 /* Test if longjmp to JMPBUF would unwind the frame
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/fclrexcpt.c glibc-2.2.5/sysdeps/powerpc/fclrexcpt.c
--- glibc-2.2.5.old/sysdeps/powerpc/fclrexcpt.c	Thu Jul  5 21:56:01 2001
+++ glibc-2.2.5/sysdeps/powerpc/fclrexcpt.c	Wed Dec 31 16:00:00 1969
@@ -1,48 +0,0 @@
-/* Clear given exceptions in current floating-point environment.
-   Copyright (C) 1997,99,2000,01 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <fenv_libc.h>
-
-#undef feclearexcept
-int
-__feclearexcept (int excepts)
-{
-  fenv_union_t u;
-
-  /* Get the current state.  */
-  u.fenv = fegetenv_register ();
-
-  /* Clear the relevant bits.  */
-  u.l[1] = u.l[1] & ~((-(excepts >> (31 - FPSCR_VX) & 1) & FE_ALL_INVALID)
-		      | (excepts & FPSCR_STICKY_BITS));
-
-  /* Put the new state in effect.  */
-  fesetenv_register (u.fenv);
-
-  /* Success.  */
-  return 0;
-}
-
-#include <shlib-compat.h>
-#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
-strong_alias (__feclearexcept, __old_feclearexcept)
-compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
-#endif
-
-versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/fe_nomask.c glibc-2.2.5/sysdeps/powerpc/fe_nomask.c
--- glibc-2.2.5.old/sysdeps/powerpc/fe_nomask.c	Thu Jul  5 21:56:01 2001
+++ glibc-2.2.5/sysdeps/powerpc/fe_nomask.c	Wed Dec 31 16:00:00 1969
@@ -1,32 +0,0 @@
-/* Procedure definition for FE_NOMASK_ENV.
-   Copyright (C) 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 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.  */
-
-#include <fenv.h>
-#include <errno.h>
-
-/* This is presently a stub, until it's decided how the kernels should
-   support this.  */
-
-const fenv_t *
-__fe_nomask_env(void)
-{
-  __set_errno (ENOSYS);
-  return FE_ENABLED_ENV;
-}
-stub_warning (__fe_nomask_env)
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/fprrest.S glibc-2.2.5/sysdeps/powerpc/fprrest.S
--- glibc-2.2.5.old/sysdeps/powerpc/fprrest.S	Thu Jul  5 21:56:01 2001
+++ glibc-2.2.5/sysdeps/powerpc/fprrest.S	Wed Dec 31 16:00:00 1969
@@ -1,94 +0,0 @@
-/* Copyright (C) 2000, 2001 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/*
-    Floating Point Registers (FPRs) restore routine
-*/
-
-#include <sysdep.h>
-
-ENTRY(_restfpr_all)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf14)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_14)
-C_TEXT(_restf14):
-C_TEXT(_restfpr_14):	lfd	fp14,-144(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf15)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_15)
-C_TEXT(_restf15):
-C_TEXT(_restfpr_15):	lfd	fp15,-136(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf16)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_16)
-C_TEXT(_restf16):
-C_TEXT(_restfpr_16):	lfd	fp16,-128(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf17)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_17)
-C_TEXT(_restf17):
-C_TEXT(_restfpr_17):	lfd	fp17,-120(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf18)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_18)
-C_TEXT(_restf18):
-C_TEXT(_restfpr_18):	lfd	fp18,-112(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf19)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_19)
-C_TEXT(_restf19):
-C_TEXT(_restfpr_19):	lfd	fp19,-104(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf20)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_20)
-C_TEXT(_restf20):
-C_TEXT(_restfpr_20):	lfd	fp20,-96(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf21)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_21)
-C_TEXT(_restf21):
-C_TEXT(_restfpr_21):	lfd	fp21,-88(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf22)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_22)
-C_TEXT(_restf22):
-C_TEXT(_restfpr_22):	lfd	fp22,-80(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf23)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_23)
-C_TEXT(_restf23):
-C_TEXT(_restfpr_23):	lfd	fp23,-72(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf24)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_24)
-C_TEXT(_restf24):
-C_TEXT(_restfpr_24):	lfd	fp24,-64(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf25)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_25)
-C_TEXT(_restf25):
-C_TEXT(_restfpr_25):	lfd	fp25,-56(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf26)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_26)
-C_TEXT(_restf26):
-C_TEXT(_restfpr_26):	lfd	fp26,-48(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf27)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_27)
-C_TEXT(_restf27):
-C_TEXT(_restfpr_27):	lfd	fp27,-40(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf28)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_28)
-C_TEXT(_restf28):
-C_TEXT(_restfpr_28):	lfd	fp28,-32(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restf29)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_29)
-C_TEXT(_restf29):
-C_TEXT(_restfpr_29):	lwz	r0,8(r1)	#get return address from frame
-			lfd	fp29,-24(r1)    #restore f29
-			mtlr	r0		#move return address to LR
-			lfd	fp30,-16(r1)	#restore f30
-			lfd	fp31,-8(r1)	#restore f31
-			blr			#return
diff -Naur glibc-2.2.5.old/sysdeps/powerpc/fprsave.S glibc-2.2.5/sysdeps/powerpc/fprsave.S
--- glibc-2.2.5.old/sysdeps/powerpc/fprsave.S	Thu Jul  5 21:56:01 2001
+++ glibc-2.2.5/sysdeps/powerpc/fprsave.S	Wed Dec 31 16:00:00 1969
@@ -1,93 +0,0 @@
-/* Copyright (C) 2000, 2001 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/*
-    Floating Point Registers (FPRs) save routine
-*/
-
-#include <sysdep.h>
-
-ENTRY(_savefpr_all)
-                ASM_GLOBAL_DIRECTIVE C_TEXT(_savef14)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_14)
-C_TEXT(_savef14):
-C_TEXT(_savefpr_14):	stfd	fp14,-144(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef15)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_15)
-C_TEXT(_savef15):
-C_TEXT(_savefpr_15):	stfd	fp15,-136(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef16)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_16)
-C_TEXT(_savef16):
-C_TEXT(_savefpr_16):	stfd	fp16,-128(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef17)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_17)
-C_TEXT(_savef17):
-C_TEXT(_savefpr_17):	stfd	fp17,-120(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef18)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_18)
-C_TEXT(_savef18):
-C_TEXT(_savefpr_18):	stfd	fp18,-112(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef19)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_19)
-C_TEXT(_savef19):
-C_TEXT(_savefpr_19):	stfd	fp19,-104(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef20)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_20)
-C_TEXT(_savef20):
-C_TEXT(_savefpr_20):	stfd	fp20,-96(r1)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savef21)
-		ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_21)
-C_TEXT(_savef21):