packages/glibc/glibc_2.5.bb: The following set of patches adds support for soft-float to powerpc targets

without fpu for gcc 4.1.1/glibc 2.5

1 files changed, 297 insertions, 0 deletions

diff --git a/packages/glibc/files/ppc-sfp-machine.patch b/packages/glibc/files/ppc-sfp-machine.patch
new file mode 100644
index 0000000000..6171a03411
--- /dev/null
+++ b/packages/glibc/files/ppc-sfp-machine.patch
@@ -0,0 +1,297 @@
+This patch combined with the other patches from Bugzilla #2749 allows
+powerpc32 to build. The Subdirs pulls in the soft-fp directory from
+libc, The Implies pulls in the ports powerpc/soft-fp directory which
+includes sfp-machine.h
+
+The get/set/swapcontext changes overide the common implimentation in
+libc to avoid using hardware FP instructions.
+
+
+
+2006-06-01  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	[BZ #2749]
+	* sysdeps/powerpc/soft-fp/Subdirs: New file.
+	* sysdeps/powerpc/soft-fp/sfp-machine.h: New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/Implies: New file.
+
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S:
+	New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S:
+	New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S:
+	New file.
+
+diff -urN dummy-libc/ports-cvstip-20060512/sysdeps/powerpc/soft-fp/Subdirs 
+libc24/ports/sysdeps/powerpc/soft-fp/Subdirs
+--- dummy-libc/ports-cvstip-20060512/sysdeps/powerpc/soft-fp/Subdirs	Wed Dec 31 18:00:00 1969
++++ libc24/ports/sysdeps/powerpc/soft-fp/Subdirs	Wed May 31 16:58:44 2006
+@@ -0,0 +1,1 @@
++soft-fp
+diff -urN dummy-libc/ports-cvstip-20060512/sysdeps/powerpc/soft-fp/sfp-machine.h 
+libc24/ports/sysdeps/powerpc/soft-fp/sfp-machine.h
+--- dummy-libc/ports-cvstip-20060512/sysdeps/powerpc/soft-fp/sfp-machine.h	Wed Dec 31 18:00:00 1969
++++ libc24/ports/sysdeps/powerpc/soft-fp/sfp-machine.h	Wed May 31 13:57:07 2006
+@@ -0,0 +1,63 @@
++#define _FP_W_TYPE_SIZE		32
++#define _FP_W_TYPE		unsigned long
++#define _FP_WS_TYPE		signed long
++#define _FP_I_TYPE		long
++
++#define _FP_MUL_MEAT_S(R,X,Y)				\
++  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
++#define _FP_MUL_MEAT_D(R,X,Y)				\
++  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
++#define _FP_MUL_MEAT_Q(R,X,Y)				\
++  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
++
++#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_loop(S,R,X,Y)
++#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
++#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
++
++#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
++#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
++#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
++#define _FP_NANSIGN_S		0
++#define _FP_NANSIGN_D		0
++#define _FP_NANSIGN_Q		0
++
++#define _FP_KEEPNANFRACP 1
++
++/* Someone please check this.  */
++#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
++  do {								\
++    if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)		\
++	&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))	\
++      {								\
++	R##_s = Y##_s;						\
++	_FP_FRAC_COPY_##wc(R,Y);				\
++      }								\
++    else							\
++      {								\
++	R##_s = X##_s;						\
++	_FP_FRAC_COPY_##wc(R,X);				\
++      }								\
++    R##_c = FP_CLS_NAN;						\
++  } while (0)
++
++/* Exception flags.  We use the bit positions of the appropriate bits
++   in the FPSCR, which also correspond to the FE_* bits.  This makes
++   everything easier ;-).  */
++#define FP_EX_INVALID         (1 << (31 - 2))
++#define FP_EX_OVERFLOW        (1 << (31 - 3))
++#define FP_EX_UNDERFLOW       (1 << (31 - 4))
++#define FP_EX_DENORM          FP_EX_UNDERFLOW
++#define FP_EX_DIVZERO         (1 << (31 - 5))
++#define FP_EX_INEXACT         (1 << (31 - 6))
++
++#define FP_HANDLE_EXCEPTIONS  __simulate_exceptions (_fex)
++#define FP_ROUNDMODE          __sim_round_mode
++
++extern int __sim_exceptions;
++libc_hidden_proto (__sim_exceptions);
++extern int __sim_disabled_exceptions;
++libc_hidden_proto (__sim_disabled_exceptions);
++extern int __sim_round_mode;
++libc_hidden_proto (__sim_round_mode);
++
++extern void __simulate_exceptions (int x) attribute_hidden;
+diff -urN dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/Implies 
+libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/Implies
+--- dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/Implies	Wed Dec 31 18:00:00 1969
++++ libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/Implies	Wed May 31 15:46:44 2006
+@@ -0,0 +1,1 @@
++powerpc/soft-fp
+diff -urN dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S 
+libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S
+--- dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S	Wed Dec 31 18:00:00 1969
++++ libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S	Thu Jun 01 15:31:03 2006
+@@ -0,0 +1,59 @@
++/* Save current context.
++   Copyright (C) 2002, 2004, 2005 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 <sysdep.h>
++#include <rtld-global-offsets.h>
++#include <shlib-compat.h>
++
++#define __ASSEMBLY__
++#include <asm/ptrace.h>
++#include "ucontext_i.h"
++
++#define __CONTEXT_FUNC_NAME __getcontext
++#undef __CONTEXT_ENABLE_FPRS
++#undef __CONTEXT_ENABLE_VRS
++
++#include "getcontext-common.S"
++
++versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
++
++/* For the nofpu case the old/new versions are the same function.  */  
++strong_alias (__getcontext, __novec_getcontext)
++
++compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)
++
++#endif
++
++#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
++
++#define _ERRNO_H	1
++#include <bits/errno.h>
++
++	compat_text_section
++ENTRY (__getcontext_stub)
++	li	r3,ENOSYS
++	b	__syscall_error@local
++END (__getcontext_stub)
++	.previous
++
++compat_symbol (libc, __getcontext_stub, getcontext, GLIBC_2_1)
++
++#endif
+diff -urN dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S 
+libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S
+--- dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S	Wed Dec 31 18:00:00 1969
++++ libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S	Thu Jun 01 15:31:03 2006
+@@ -0,0 +1,59 @@
++/* Jump to a new context.
++   Copyright (C) 2002, 2004, 2005 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 <sysdep.h>
++#include <rtld-global-offsets.h>
++#include <shlib-compat.h>
++
++#define __ASSEMBLY__
++#include <asm/ptrace.h>
++#include "ucontext_i.h"
++
++#define __CONTEXT_FUNC_NAME __setcontext
++#undef __CONTEXT_ENABLE_FPRS
++#undef __CONTEXT_ENABLE_VRS
++
++#include "setcontext-common.S"
++
++versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_4)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
++
++/* For the nofpu case the old/new versions are the same function.  */  
++strong_alias (__setcontext, __novec_setcontext)
++
++compat_symbol (libc, __novec_setcontext, setcontext, GLIBC_2_3_3)
++
++#endif
++
++#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_3)
++
++#define _ERRNO_H	1
++#include <bits/errno.h>
++
++	compat_text_section
++ENTRY (__setcontext_stub)
++	li	r3,ENOSYS
++	b	__syscall_error@local
++END (__setcontext_stub)
++	.previous
++
++compat_symbol (libc, __setcontext_stub, setcontext, GLIBC_2_0)
++
++#endif
+diff -urN dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S 
+libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S
+--- dummy-libc/ports-cvstip-20060512/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S	Wed Dec 31 18:00:00 1969
++++ libc24/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S	Thu Jun 01 15:31:03 2006
+@@ -0,0 +1,59 @@
++/* Save current context and jump to a new context.
++   Copyright (C) 2002, 2004, 2005 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 <sysdep.h>
++#include <rtld-global-offsets.h>
++#include <shlib-compat.h>
++
++#define __ASSEMBLY__
++#include <asm/ptrace.h>
++#include "ucontext_i.h"
++
++#define __CONTEXT_FUNC_NAME __swapcontext
++#undef __CONTEXT_ENABLE_FPRS
++#undef __CONTEXT_ENABLE_VRS
++
++# include "swapcontext-common.S"
++
++versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
++
++/* For the nofpu case the old/new versions are the same function.  */  
++strong_alias (__swapcontext, __novec_swapcontext)
++
++compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3_3)
++
++#endif
++
++#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
++
++#define _ERRNO_H	1
++#include <bits/errno.h>
++
++	compat_text_section
++ENTRY (__swapcontext_stub)
++	li	r3,ENOSYS
++	b	__syscall_error@local
++END (__swapcontext_stub)
++	.previous
++
++compat_symbol (libc, __swapcontext_stub, swapcontext, GLIBC_2_1)
++
++#endif
+