+2004-03-21 Andrew Pinski <pinskia@physics.uc.edu>
+
+ * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA):
+ Add darwin-fpsave.asm, darwin-vecsave.asm,
+ and darwin-world.asm.
+ (TARGET_LIBGCC2_CFLAGS): Add -Wa,-force_cpusubtype_ALL
+ as the asm files contain altivec instructions.
+ * config/rs6000/darwin-fpsave.asm: New file.
+ * config/rs6000/darwin-vecsave.asm: New file.
+ * config/rs6000/darwin-world.asm: New file.
+
2004-03-31 Zack Weinberg <zack@codesourcery.com>
* gengtype-yacc.y (option, stringseq): Add missing
--- /dev/null
+/* This file contains the floating-point save and restore routines.
+ *
+ * Copyright (C) 2004 Free Software Foundation, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file. (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+ *
+ * This file 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * As a special exception, if you link this library with files
+ * compiled with GCC to produce an executable, this does not cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * This exception does not however invalidate any other reasons why the
+ * executable file might be covered by the GNU General Public License.
+ */
+
+/* THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE
+ ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31,
+ for example. For FP reg saves/restores, it takes one instruction
+ (4 bytes) to do the operation; for Vector regs, 2 instructions are
+ required (8 bytes.)
+
+ MORAL: DO NOT MESS AROUND WITH THESE FUNCTIONS! */
+
+.text
+ .align 2
+
+/* saveFP saves R0 -- assumed to be the callers LR -- to 8(R1). */
+
+.private_extern saveFP
+saveFP:
+ stfd f14,-144(r1)
+ stfd f15,-136(r1)
+ stfd f16,-128(r1)
+ stfd f17,-120(r1)
+ stfd f18,-112(r1)
+ stfd f19,-104(r1)
+ stfd f20,-96(r1)
+ stfd f21,-88(r1)
+ stfd f22,-80(r1)
+ stfd f23,-72(r1)
+ stfd f24,-64(r1)
+ stfd f25,-56(r1)
+ stfd f26,-48(r1)
+ stfd f27,-40(r1)
+ stfd f28,-32(r1)
+ stfd f29,-24(r1)
+ stfd f30,-16(r1)
+ stfd f31,-8(r1)
+ stw r0,8(r1)
+ blr
+
+/* restFP restores the caller`s LR from 8(R1). Note that the code for
+ this starts at the offset of F30 restoration, so calling this
+ routine in an attempt to restore only F31 WILL NOT WORK (it would
+ be a stupid thing to do, anyway.) */
+
+.private_extern restFP
+restFP:
+ lfd f14,-144(r1)
+ lfd f15,-136(r1)
+ lfd f16,-128(r1)
+ lfd f17,-120(r1)
+ lfd f18,-112(r1)
+ lfd f19,-104(r1)
+ lfd f20,-96(r1)
+ lfd f21,-88(r1)
+ lfd f22,-80(r1)
+ lfd f23,-72(r1)
+ lfd f24,-64(r1)
+ lfd f25,-56(r1)
+ lfd f26,-48(r1)
+ lfd f27,-40(r1)
+ lfd f28,-32(r1)
+ lfd f29,-24(r1)
+ /* <OFFSET OF F30 RESTORE> restore callers LR */
+ lwz r0,8(r1)
+ lfd f30,-16(r1)
+ /* and prepare for return to caller */
+ mtlr r0
+ lfd f31,-8(r1)
+ blr
--- /dev/null
+/* This file contains the vector save and restore routines.
+ *
+ * Copyright (C) 2004 Free Software Foundation, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file. (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+ *
+ * This file 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * As a special exception, if you link this library with files
+ * compiled with GCC to produce an executable, this does not cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * This exception does not however invalidate any other reasons why the
+ * executable file might be covered by the GNU General Public License.
+ */
+
+/* Vector save/restore routines for Darwin. Note that each vector
+ save/restore requires 2 instructions (8 bytes.)
+
+ THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE
+ ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31,
+ for example. For FP reg saves/restores, it takes one instruction
+ (4 bytes) to do the operation; for Vector regs, 2 instructions are
+ required (8 bytes.). */
+
+.text
+ .align 2
+
+.private_extern saveVEC
+saveVEC:
+ li r11,-192
+ stvx v20,r11,r0
+ li r11,-176
+ stvx v21,r11,r0
+ li r11,-160
+ stvx v22,r11,r0
+ li r11,-144
+ stvx v23,r11,r0
+ li r11,-128
+ stvx v24,r11,r0
+ li r11,-112
+ stvx v25,r11,r0
+ li r11,-96
+ stvx v26,r11,r0
+ li r11,-80
+ stvx v27,r11,r0
+ li r11,-64
+ stvx v28,r11,r0
+ li r11,-48
+ stvx v29,r11,r0
+ li r11,-32
+ stvx v30,r11,r0
+ li r11,-16
+ stvx v31,r11,r0
+ blr
+
+.private_extern restVEC
+restVEC:
+ li r11,-192
+ lvx v20,r11,r0
+ li r11,-176
+ lvx v21,r11,r0
+ li r11,-160
+ lvx v22,r11,r0
+ li r11,-144
+ lvx v23,r11,r0
+ li r11,-128
+ lvx v24,r11,r0
+ li r11,-112
+ lvx v25,r11,r0
+ li r11,-96
+ lvx v26,r11,r0
+ li r11,-80
+ lvx v27,r11,r0
+ li r11,-64
+ lvx v28,r11,r0
+ li r11,-48
+ lvx v29,r11,r0
+ li r11,-32
+ lvx v30,r11,r0
+ li r11,-16
+ lvx v31,r11,r0
+ blr
+
+/* saveVEC_vr11 -- as saveVEC but VRsave is returned in R11. */
+
+.private_extern saveVEC_vr11
+saveVEC_vr11:
+ li r11,-192
+ stvx v20,r11,r0
+ li r11,-176
+ stvx v21,r11,r0
+ li r11,-160
+ stvx v22,r11,r0
+ li r11,-144
+ stvx v23,r11,r0
+ li r11,-128
+ stvx v24,r11,r0
+ li r11,-112
+ stvx v25,r11,r0
+ li r11,-96
+ stvx v26,r11,r0
+ li r11,-80
+ stvx v27,r11,r0
+ li r11,-64
+ stvx v28,r11,r0
+ li r11,-48
+ stvx v29,r11,r0
+ li r11,-32
+ stvx v30,r11,r0
+ li r11,-16
+ stvx v31,r11,r0
+ mfspr r11,VRsave
+ blr
+
+/* As restVec, but the original VRsave value passed in R10. */
+
+.private_extern restVEC_vr10
+restVEC_vr10:
+ li r11,-192
+ lvx v20,r11,r0
+ li r11,-176
+ lvx v21,r11,r0
+ li r11,-160
+ lvx v22,r11,r0
+ li r11,-144
+ lvx v23,r11,r0
+ li r11,-128
+ lvx v24,r11,r0
+ li r11,-112
+ lvx v25,r11,r0
+ li r11,-96
+ lvx v26,r11,r0
+ li r11,-80
+ lvx v27,r11,r0
+ li r11,-64
+ lvx v28,r11,r0
+ li r11,-48
+ lvx v29,r11,r0
+ li r11,-32
+ lvx v30,r11,r0
+ li r11,-16
+ lvx v31,r11,r0
+ /* restore VRsave from R10. */
+ mtspr VRsave,r10
+ blr
--- /dev/null
+/* This file contains the exception-handling save_world and
+ * restore_world routines, which need to do a run-time check to see if
+ * they should save and restore the vector registers.
+ *
+ * Copyright (C) 2004 Free Software Foundation, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file. (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+ *
+ * This file 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * As a special exception, if you link this library with files
+ * compiled with GCC to produce an executable, this does not cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * This exception does not however invalidate any other reasons why the
+ * executable file might be covered by the GNU General Public License.
+ */
+
+.data
+ .align 2
+
+#ifdef __DYNAMIC__
+
+.non_lazy_symbol_pointer
+L_has_vec$non_lazy_ptr:
+ .indirect_symbol __cpu_has_altivec
+ .long 0
+
+#else
+
+/* For static, "pretend" we have a non-lazy-pointer. */
+
+L_has_vec$non_lazy_ptr:
+ .long __cpu_has_altivec
+
+#endif
+
+
+.text
+ .align 2
+
+/* save_world and rest_world save/restore F14-F31 and possibly V20-V31
+ (assuming you have a CPU with vector registers; we use a global var
+ provided by the System Framework to determine this.)
+
+ SAVE_WORLD takes R0 (the caller`s caller`s return address) and R11
+ (the stack frame size) as parameters. It returns VRsave in R0 if
+ we`re on a CPU with vector regs.
+
+ With gcc3, we now need to save and restore CR as well, since gcc3's
+ scheduled prologs can cause comparisons to be moved before calls to
+ save_world!
+
+ USES: R0 R11 R12 */
+
+.private_extern save_world
+save_world:
+ stw r0,8(r1)
+ mflr r0
+ bcl 20,31,Ls$pb
+Ls$pb: mflr r12
+ addis r12,r12,ha16(L_has_vec$non_lazy_ptr-Ls$pb)
+ lwz r12,lo16(L_has_vec$non_lazy_ptr-Ls$pb)(r12)
+ mtlr r0
+ lwz r12,0(r12)
+ /* grab CR */
+ mfcr r0
+ /* test HAS_VEC */
+ cmpwi r12,0
+ stfd f14,-144(r1)
+ stfd f15,-136(r1)
+ stfd f16,-128(r1)
+ stfd f17,-120(r1)
+ stfd f18,-112(r1)
+ stfd f19,-104(r1)
+ stfd f20,-96(r1)
+ stfd f21,-88(r1)
+ stfd f22,-80(r1)
+ stfd f23,-72(r1)
+ stfd f24,-64(r1)
+ stfd f25,-56(r1)
+ stfd f26,-48(r1)
+ stfd f27,-40(r1)
+ stfd f28,-32(r1)
+ stfd f29,-24(r1)
+ stfd f30,-16(r1)
+ stfd f31,-8(r1)
+ stmw r13,-220(r1)
+ /* stash CR */
+ stw r0,4(r1)
+ /* set R12 pointing at Vector Reg save area */
+ addi r12,r1,-224
+ /* allocate stack frame */
+ stwux r1,r1,r11
+ /* ...but return if HAS_VEC is zero */
+ bne+ L$saveVMX
+ /* Not forgetting to restore CR. */
+ mtcr r0
+ blr
+
+L$saveVMX:
+ /* We're saving Vector regs too. */
+ /* Restore CR from R0. No More Branches! */
+ mtcr r0
+
+ /* We should really use VRSAVE to figure out which vector regs
+ we actually need to save and restore. Some other time :-/ */
+
+ li r11,-192
+ stvx v20,r11,r12
+ li r11,-176
+ stvx v21,r11,r12
+ li r11,-160
+ stvx v22,r11,r12
+ li r11,-144
+ stvx v23,r11,r12
+ li r11,-128
+ stvx v24,r11,r12
+ li r11,-112
+ stvx v25,r11,r12
+ li r11,-96
+ stvx v26,r11,r12
+ li r11,-80
+ stvx v27,r11,r12
+ li r11,-64
+ stvx v28,r11,r12
+ li r11,-48
+ stvx v29,r11,r12
+ li r11,-32
+ stvx v30,r11,r12
+ mfspr r0,VRsave
+ li r11,-16
+ stvx v31,r11,r12
+ /* VRsave lives at -224(R1) */
+ stw r0,0(r12)
+ blr
+
+
+/* eh_rest_world_r10 is jumped to, not called, so no need to worry about LR.
+ R10 is the C++ EH stack adjust parameter, we return to the caller`s caller.
+
+ USES: R0 R10 R11 R12 and R7 R8
+ RETURNS: C++ EH Data registers (R3 - R6.)
+
+ We now set up R7/R8 and jump to rest_world_eh_r7r8.
+
+ rest_world doesn't use the R10 stack adjust parameter, nor does it
+ pick up the R3-R6 exception handling stuff. */
+
+.private_extern rest_world
+rest_world:
+ /* Pickup previous SP */
+ lwz r11, 0(r1)
+ li r7, 0
+ lwz r8, 8(r11)
+ li r10, 0
+ b rest_world_eh_r7r8
+
+.private_extern eh_rest_world_r10
+eh_rest_world_r10:
+ /* Pickup previous SP */
+ lwz r11, 0(r1)
+ mr r7,r10
+ lwz r8, 8(r11)
+ /* pickup the C++ EH data regs (R3 - R6.) */
+ lwz r6,-420(r11)
+ lwz r5,-424(r11)
+ lwz r4,-428(r11)
+ lwz r3,-432(r11)
+
+ b rest_world_eh_r7r8
+
+/* rest_world_eh_r7r8 is jumped to -- not called! -- when we're doing
+ the exception-handling epilog. R7 contains the offset to add to
+ the SP, and R8 contains the 'real' return address.
+
+ USES: R0 R11 R12 [R7/R8]
+ RETURNS: C++ EH Data registers (R3 - R6.) */
+
+rest_world_eh_r7r8:
+ bcl 20,31,Lr7r8$pb
+Lr7r8$pb: mflr r12
+ lwz r11,0(r1)
+ /* R11 := previous SP */
+ addis r12,r12,ha16(L_has_vec$non_lazy_ptr-Lr7r8$pb)
+ lwz r12,lo16(L_has_vec$non_lazy_ptr-Lr7r8$pb)(r12)
+ lwz r0,4(r11)
+ /* R0 := old CR */
+ lwz r12,0(r12)
+ /* R12 := HAS_VEC */
+ mtcr r0
+ cmpwi r12,0
+ lmw r13,-220(r11)
+ beq L.rest_world_fp_eh
+ /* restore VRsave and V20..V31 */
+ lwz r0,-224(r11)
+ li r12,-416
+ mtspr VRsave,r0
+ lvx v20,r11,r12
+ li r12,-400
+ lvx v21,r11,r12
+ li r12,-384
+ lvx v22,r11,r12
+ li r12,-368
+ lvx v23,r11,r12
+ li r12,-352
+ lvx v24,r11,r12
+ li r12,-336
+ lvx v25,r11,r12
+ li r12,-320
+ lvx v26,r11,r12
+ li r12,-304
+ lvx v27,r11,r12
+ li r12,-288
+ lvx v28,r11,r12
+ li r12,-272
+ lvx v29,r11,r12
+ li r12,-256
+ lvx v30,r11,r12
+ li r12,-240
+ lvx v31,r11,r12
+
+L.rest_world_fp_eh:
+ lfd f14,-144(r11)
+ lfd f15,-136(r11)
+ lfd f16,-128(r11)
+ lfd f17,-120(r11)
+ lfd f18,-112(r11)
+ lfd f19,-104(r11)
+ lfd f20,-96(r11)
+ lfd f21,-88(r11)
+ lfd f22,-80(r11)
+ lfd f23,-72(r11)
+ lfd f24,-64(r11)
+ lfd f25,-56(r11)
+ lfd f26,-48(r11)
+ lfd f27,-40(r11)
+ lfd f28,-32(r11)
+ lfd f29,-24(r11)
+ lfd f30,-16(r11)
+ /* R8 is the exception-handler's address */
+ mtctr r8
+ lfd f31,-8(r11)
+ /* set SP to original value + R7 offset */
+ add r1,r11,r7
+ bctr
LIB2FUNCS_EXTRA = $(srcdir)/config/rs6000/darwin-tramp.asm \
$(srcdir)/config/rs6000/darwin-ldouble.c
+LIB2FUNCS_STATIC_EXTRA = \
+ $(srcdir)/config/rs6000/darwin-fpsave.asm \
+ $(srcdir)/config/rs6000/darwin-vecsave.asm \
+ $(srcdir)/config/rs6000/darwin-world.asm
+
+# Enable AltiVec instructions when assembling the aforementioned .asm files.
# For libgcc, we always want 128-bit long double, since a libgcc built with
# that will work without it.
-TARGET_LIBGCC2_CFLAGS = -mlong-double-128
+TARGET_LIBGCC2_CFLAGS = -mlong-double-128 -Wa,-force_cpusubtype_ALL
projects / platform / upstream / gcc.git / commitdiff