diff options
Diffstat (limited to 'sysdeps/sparc64')
-rw-r--r-- | sysdeps/sparc64/Implies | 3 | ||||
-rw-r--r-- | sysdeps/sparc64/Makefile | 11 | ||||
-rw-r--r-- | sysdeps/sparc64/add_n.S | 58 | ||||
-rw-r--r-- | sysdeps/sparc64/addmul_1.S | 88 | ||||
-rw-r--r-- | sysdeps/sparc64/bits/endian.h | 8 | ||||
-rw-r--r-- | sysdeps/sparc64/bsd-_setjmp.S | 43 | ||||
-rw-r--r-- | sysdeps/sparc64/bsd-setjmp.S | 41 | ||||
-rwxr-xr-x | sysdeps/sparc64/configure | 3 | ||||
-rw-r--r-- | sysdeps/sparc64/configure.in | 7 | ||||
-rw-r--r-- | sysdeps/sparc64/dl-machine.h | 304 | ||||
-rw-r--r-- | sysdeps/sparc64/elf/Makefile | 10 | ||||
-rw-r--r-- | sysdeps/sparc64/elf/crtbegin.S | 49 | ||||
-rw-r--r-- | sysdeps/sparc64/elf/crtbeginS.S | 1 | ||||
-rw-r--r-- | sysdeps/sparc64/elf/crtend.S | 50 | ||||
-rw-r--r-- | sysdeps/sparc64/elf/crtendS.S | 1 | ||||
-rw-r--r-- | sysdeps/sparc64/elf/start.S | 93 | ||||
-rw-r--r-- | sysdeps/sparc64/fpu_control.h | 69 | ||||
-rw-r--r-- | sysdeps/sparc64/gmp-mparam.h | 27 | ||||
-rw-r--r-- | sysdeps/sparc64/lshift.S | 96 | ||||
-rw-r--r-- | sysdeps/sparc64/mul_1.S | 84 | ||||
-rw-r--r-- | sysdeps/sparc64/rshift.S | 93 | ||||
-rw-r--r-- | sysdeps/sparc64/sub_n.S | 55 | ||||
-rw-r--r-- | sysdeps/sparc64/submul_1.S | 87 |
23 files changed, 1281 insertions, 0 deletions
diff --git a/sysdeps/sparc64/Implies b/sysdeps/sparc64/Implies new file mode 100644 index 0000000000..1d793f9fb1 --- /dev/null +++ b/sysdeps/sparc64/Implies @@ -0,0 +1,3 @@ +wordsize-64 +# SPARC uses IEEE 754 floating point. +ieee754 diff --git a/sysdeps/sparc64/Makefile b/sysdeps/sparc64/Makefile new file mode 100644 index 0000000000..48a86c6acb --- /dev/null +++ b/sysdeps/sparc64/Makefile @@ -0,0 +1,11 @@ +# The Sparc`long double' is a distinct type we support. +#long-double-fcts = yes + +# But the support for ieee quads is so bad we just skip the whole thing. +# XXX This is only a temporary hack. +omit-long-double-fcts = yes + +# But we do need these few functions to even link stdio proggies +ifeq ($(subdir),math) +sysdep_routines += s_isinfl s_isnanl +endif diff --git a/sysdeps/sparc64/add_n.S b/sysdeps/sparc64/add_n.S new file mode 100644 index 0000000000..68bb008a7d --- /dev/null +++ b/sysdeps/sparc64/add_n.S @@ -0,0 +1,58 @@ +/* SPARC v9 __mpn_add_n -- Add two limb vectors of the same length > 0 and + store sum in a third limb vector. + + Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + + +#include <sysdep.h> + + +/* INPUT PARAMETERS + res_ptr %o0 + s1_ptr %o1 + s2_ptr %o2 + size %o3 */ + + +ENTRY(__mpn_add_n) + + sub %g0,%o3,%g3 + sllx %o3,3,%g1 + add %o1,%g1,%o1 ! make s1_ptr point at end + add %o2,%g1,%o2 ! make s2_ptr point at end + add %o0,%g1,%o0 ! make res_ptr point at end + mov 0,%o4 ! clear carry variable + sllx %g3,3,%o5 ! compute initial address index + +1: ldx [%o2+%o5],%g1 ! load s2 limb + add %g3,1,%g3 ! increment loop count + ldx [%o1+%o5],%g2 ! load s1 limb + addcc %g1,%o4,%g1 ! add s2 limb and carry variable + movcc %xcc,0,%o4 ! if carry-out, o4 was 1; clear it + addcc %g1,%g2,%g1 ! add s1 limb to sum + stx %g1,[%o0+%o5] ! store result + add %o5,8,%o5 ! increment address index + brnz,pt %g3,1b + movcs %xcc,1,%o4 ! if s1 add gave carry, record it + + retl + mov %o4,%o0 + +END(__mpn_add_n) diff --git a/sysdeps/sparc64/addmul_1.S b/sysdeps/sparc64/addmul_1.S new file mode 100644 index 0000000000..260481230f --- /dev/null +++ b/sysdeps/sparc64/addmul_1.S @@ -0,0 +1,88 @@ +/* SPARC v9 __mpn_addmul_1 -- Multiply a limb vector with a single limb and + add the product to a second limb vector. + + Copyright (C) 1996 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +#include <sysdep.h> + + +/* INPUT PARAMETERS + res_ptr o0 + s1_ptr o1 + size o2 + s2_limb o3 */ + + +ENTRY(__mpn_addmul_1) + !#PROLOGUE# 0 + save %sp,-128,%sp + !#PROLOGUE# 1 + + sub %g0,%i2,%o7 + sllx %o7,3,%g5 + sub %i1,%g5,%o3 + sub %i0,%g5,%o4 + mov 0,%o0 ! zero cy_limb + + srl %i3,0,%o1 ! extract low 32 bits of s2_limb + srlx %i3,32,%i3 ! extract high 32 bits of s2_limb + mov 1,%o2 + sllx %o2,32,%o2 ! o2 = 0x100000000 + + ! hi ! + ! mid-1 ! + ! mid-2 ! + ! lo ! +1: + sllx %o7,3,%g1 + ldx [%o3+%g1],%g5 + srl %g5,0,%i0 ! zero hi bits + srlx %g5,32,%g5 + mulx %o1,%i0,%i4 ! lo product + mulx %i3,%i0,%i1 ! mid-1 product + mulx %o1,%g5,%l2 ! mid-2 product + mulx %i3,%g5,%i5 ! hi product + srlx %i4,32,%i0 ! extract high 32 bits of lo product... + add %i1,%i0,%i1 ! ...and add it to the mid-1 product + addcc %i1,%l2,%i1 ! add mid products + mov 0,%l0 ! we need the carry from that add... + movcs %xcc,%o2,%l0 ! ...compute it and... + add %i5,%l0,%i5 ! ...add to bit 32 of the hi product + sllx %i1,32,%i0 ! align low bits of mid product + srl %i4,0,%g5 ! zero high 32 bits of lo product + add %i0,%g5,%i0 ! combine into low 64 bits of result + srlx %i1,32,%i1 ! extract high bits of mid product... + add %i5,%i1,%i1 ! ...and add them to the high result + addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result + mov 0,%g5 + movcs %xcc,1,%g5 + add %o7,1,%o7 + ldx [%o4+%g1],%l1 + addcc %l1,%i0,%i0 + movcs %xcc,1,%g5 + stx %i0,[%o4+%g1] + brnz %o7,1b + add %i1,%g5,%o0 ! compute new cy_limb + + mov %o0,%i0 + jmpl %i7+8, %g0 + restore + +END(__mpn_addmul_1) diff --git a/sysdeps/sparc64/bits/endian.h b/sysdeps/sparc64/bits/endian.h new file mode 100644 index 0000000000..a2ab07249a --- /dev/null +++ b/sysdeps/sparc64/bits/endian.h @@ -0,0 +1,8 @@ +/* Sparc is big-endian, but v9 supports endian conversion on loads/stores + and GCC supports such a mode. Be prepared. */ + +#ifdef __LITTLE_ENDIAN__ +#define __BYTE_ORDER __LITTLE_ENDIAN +#else +#define __BYTE_ORDER __BIG_ENDIAN +#endif diff --git a/sysdeps/sparc64/bsd-_setjmp.S b/sysdeps/sparc64/bsd-_setjmp.S new file mode 100644 index 0000000000..1388c4c238 --- /dev/null +++ b/sysdeps/sparc64/bsd-_setjmp.S @@ -0,0 +1,43 @@ +/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. Sparc64 version. + 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +ENTRY(_setjmp) + +#ifdef PIC +1: rd %pc,%g1 + sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%g2 + or %g2,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%g2 + add %g1,%g2,%g1 + sethi %hi(C_SYMBOL_NAME(__sigsetjmp)),%g2 + or %g2,%lo(C_SYMBOL_NAME(__sigsetjmp)),%g2 + ld [%g1+%g2], %g1 +#else + sethi %hi(C_SYMBOL_NAME(__sigsetjmp)), %g1 + or %lo(C_SYMBOL_NAME(__sigsetjmp)), %g1, %g1 + add %g1, %g4, %g1 +#endif + + jmp %g1 + mov %g0, %o1 /* Pass second argument of zero. */ + +END(_setjmp) + +strong_alias(_setjmp, __setjmp) diff --git a/sysdeps/sparc64/bsd-setjmp.S b/sysdeps/sparc64/bsd-setjmp.S new file mode 100644 index 0000000000..c42123fc42 --- /dev/null +++ b/sysdeps/sparc64/bsd-setjmp.S @@ -0,0 +1,41 @@ +/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. Sparc64 version. + 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +ENTRY(setjmp) + +#ifdef PIC +1: rd %pc,%g1 + sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%g2 + or %g2,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%g2 + add %g1,%g2,%g1 + sethi %hi(C_SYMBOL_NAME(__sigsetjmp)),%g2 + or %g2,%lo(C_SYMBOL_NAME(__sigsetjmp)),%g2 + ld [%g1+%g2], %g1 +#else + sethi %hi(C_SYMBOL_NAME(__sigsetjmp)), %g1 + or %lo(C_SYMBOL_NAME(__sigsetjmp)), %g1, %g1 + add %g1, %g4, %g1 +#endif + + jmp %g1 + mov 1, %o1 /* Pass second argument of one. */ + +END(setjmp) diff --git a/sysdeps/sparc64/configure b/sysdeps/sparc64/configure new file mode 100755 index 0000000000..099f5b0470 --- /dev/null +++ b/sysdeps/sparc64/configure @@ -0,0 +1,3 @@ + # Local configure fragment for sysdeps/sparc64 + +nopic_initfini=yes diff --git a/sysdeps/sparc64/configure.in b/sysdeps/sparc64/configure.in new file mode 100644 index 0000000000..662f8a22ba --- /dev/null +++ b/sysdeps/sparc64/configure.in @@ -0,0 +1,7 @@ +sinclude(./aclocal.m4)dnl Autoconf lossage +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/sparc64 + +dnl We need to have separate crt? files for static linking which does +dnl not use PIC. +nopic_initfini=yes \ No newline at end of file diff --git a/sysdeps/sparc64/dl-machine.h b/sysdeps/sparc64/dl-machine.h new file mode 100644 index 0000000000..21c3d6b9bd --- /dev/null +++ b/sysdeps/sparc64/dl-machine.h @@ -0,0 +1,304 @@ +/* Machine-dependent ELF dynamic relocation inline functions. Sparc64 version. + 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define ELF_MACHINE_NAME "sparc64" + +#include <assert.h> +#include <string.h> +#include <link.h> +#include <sys/param.h> +#include <sysdep.h> + + +/* Return nonzero iff E_MACHINE is compatible with the running host. */ +static inline int +elf_machine_matches_host (Elf64_Half e_machine) +{ + return e_machine == EM_SPARC64; +} + + +/* Return the link-time address of _DYNAMIC. Conveniently, this is the + first element of the GOT. This must be inlined in a function which + uses global data. */ +static inline Elf64_Addr +elf_machine_dynamic (void) +{ + register Elf64_Addr *got asm ("%l7"); + return *got; +} + + +/* Return the run-time load address of the shared object. */ +static inline Elf64_Addr +elf_machine_load_address (void) +{ + Elf64_Addr here; + + __asm("rd %pc,%0\n\t" + "ba 1f\n\t" + " add %0,12,%0\n\t" + ".weak __load_address_undefined\n\t" + "call __load_address_undefined\n" + "1:" + : "=r"(here)); + + return here + (*(int *)here << 2); +} + +#ifdef RESOLVE +/* Perform the relocation specified by RELOC and SYM (which is fully resolved). + MAP is the object containing the reloc. */ + +static inline void +elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc, + const Elf64_Sym *sym, const struct r_found_version *version) +{ + Elf64_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); + Elf64_Addr loadbase; + +#ifndef RTLD_BOOTSTRAP + /* This is defined in rtld.c, but nowhere in the static libc.a; make the + reference weak so static programs can still link. This declaration + cannot be done when compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) + because rtld.c contains the common defn for _dl_rtld_map, which is + incompatible with a weak decl in the same file. */ + weak_extern (_dl_rtld_map); +#endif + + if (ELF64_R_TYPE (reloc->r_info) == R_SPARC_RELATIVE) + { +#ifndef RTLD_BOOTSTRAP + if (map != &_dl_rtld_map) /* Already done in rtld itself. */ +#endif + *reloc_addr += map->l_addr + reloc->r_addend; + } + else + { + const Elf64_Sym *const refsym = sym; + Elf64_Addr value; + if (sym->st_shndx != SHN_UNDEF && + ELF64_ST_BIND (sym->st_info) == STB_LOCAL) + value = map->l_addr; + else + { + value = RESOLVE (&sym, version, ELF64_R_TYPE (reloc->r_info)); + if (sym) + value += sym->st_value; + } + value += reloc->r_addend; /* Assume copy relocs have zero addend. */ + + switch (ELF64_R_TYPE (reloc->r_info)) + { + case R_SPARC_COPY: + if (sym->st_size > refsym->st_size + || (_dl_verbose && sym->st_size < refsym->st_size)) + { + const char *strtab; + + strtab = ((void *) map->l_addr + + map->l_info[DT_STRTAB]->d_un.d_ptr); + _dl_sysdep_error ("Symbol `", strtab + refsym->st_name, + "' has different size in shared object, " + "consider re-linking\n", NULL); + } + memcpy (reloc_addr, (void *) value, MIN (sym->st_size, + refsym->st_size)); + break; + case R_SPARC_GLOB_DAT: + /* case R_SPARC_64: */ + case R_SPARC_JMP_SLOT: + *reloc_addr = value; + break; + case R_SPARC_8: + *(char *) reloc_addr = value; + break; + case R_SPARC_16: + *(short *) reloc_addr = value; + break; + case R_SPARC_DISP8: + *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_DISP16: + *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_DISP32: + *(unsigned int *)reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_LO10: + *(unsigned *)reloc_addr = (*(unsigned *)reloc_addr & ~0x3ff) + | (value & 0x3ff); + break; + case R_SPARC_WDISP30: + *(unsigned *)reloc_addr = ((*(unsigned *)reloc_addr & 0xc0000000) + | ((value - (Elf64_Addr) reloc_addr) >> 2)); + break; + case R_SPARC_HI22: + *(unsigned *)reloc_addr = (*(unsigned *)reloc_addr & 0xffc00000) + | (value >> 10); + break; + case R_SPARC_NONE: /* Alright, Wilbur. */ + break; + default: + assert (! "unexpected dynamic reloc type"); + break; + } + } +} + +static inline void +elf_machine_lazy_rel (struct link_map *map, const Elf64_Rela *reloc) +{ + switch (ELF64_R_TYPE (reloc->r_info)) + { + case R_SPARC_NONE: + break; + case R_SPARC_JMP_SLOT: + break; + default: + assert (! "unexpected PLT reloc type"); + break; + } +} + +#endif /* RESOLVE */ + +/* Nonzero iff TYPE should not be allowed to resolve to one of + the main executable's symbols, as for a COPY reloc. */ +#define elf_machine_lookup_noexec_p(type) ((type) == R_SPARC_COPY) + +/* Nonzero iff TYPE describes relocation of a PLT entry, so + PLT entries should not be allowed to define the value. */ +#define elf_machine_lookup_noplt_p(type) ((type) == R_SPARC_JMP_SLOT) + +/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ +#define ELF_MACHINE_RELOC_NOPLT R_SPARC_JMP_SLOT + +/* The SPARC never uses Elf64_Rel relocations. */ +#define ELF_MACHINE_NO_REL 1 + + +/* Set up the loaded object described by L so its unrelocated PLT + entries will jump to the on-demand fixup code in dl-runtime.c. */ + +static inline int +elf_machine_runtime_setup (struct link_map *l, int lazy) +{ + Elf64_Addr *got; + extern void _dl_runtime_resolve (Elf64_Word); + + if (l->l_info[DT_JMPREL] && lazy) + { + got = (Elf64_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr); + got[1] = (Elf64_Addr) l; /* Identify this shared object. */ + /* This function will get called to fix up the GOT entry indicated by + the offset on the stack, and then jump to the resolved address. */ + got[2] = (Elf64_Addr) &_dl_runtime_resolve; + } + + return lazy; +} + +/* This code is used in dl-runtime.c to call the `fixup' function + and then redirect to the address it returns. */ +#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ + .globl _dl_runtime_resolve + .type _dl_runtime_resolve, @function +_dl_runtime_resolve: + save %sp, -160, %sp + mov %g1, %o1 + call fixup + mov %g2, %o0 + jmp %o0 + restore + .size _dl_runtime_resolve, .-_dl_runtime_resolve +"); + +/* The PLT uses Elf64_Rela relocs. */ +#define elf_machine_relplt elf_machine_rela + + +/* Mask identifying addresses reserved for the user program, + where the dynamic linker should not map anything. */ +#define ELF_MACHINE_USER_ADDRESS_MASK ??? + +/* Initial entry point code for the dynamic linker. + The C function `_dl_start' is the real entry point; + its return value is the user program's entry point. */ + +#define __S1(x) #x +#define __S(x) __S1(x) + +#define RTLD_START __asm__ ( "\ + .global _start + .type _start, @function +_start: + /* Make room for functions to drop their arguments on the stack. */ + sub %sp, 6*8, %sp + /* Pass pointer to argument block to _dl_start. */ + call _dl_start + add %sp," __S(STACK_BIAS) "+22*8,%o0 + /* FALLTHRU */ + + .global _dl_start_user + .type _dl_start_user, @function +_dl_start_user: + /* Load the GOT register. */ +1: rd %pc,%g1 + sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%l7 + or %l2,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%l7 + add %l7,%g1,%l7 + /* Save the user entry point address in %l0. */ + mov %o0,%l0 + /* See if we were run as a command with the executable file name as an + extra leading argument. If so, adjust the stack pointer. */ + sethi %hi(_dl_skip_args), %g2 + or %g2, %lo(_dl_skip_args), %g2 + ld [%l7+%g2], %i0 + brz,pt %i0, 2f + ldx [%sp+" __S(STACK_BIAS) "+22*8], %i1 + sub %i1, %i0, %i1 + sllx %i0, 3, %i2 + add %sp, %i2, %sp + stx %i1, [%sp+" __S(STACK_BIAS) "+22*8] + /* Load _dl_default_scope[2] to pass to _dl_init_next. */ +2: sethi %hi(_dl_default_scope), %g2 + or %g2, %lo(_dl_defalt_scope), %g2 + add %g2, 2*8, %g2 + ldx [%l7+%g2], %l1 + /* Call _dl_init_next to return the address of an initializer to run. */ +3: call _dl_init_next + mov %l1, %o0 + brz,pn %o0, 4f + nop + jmpl %o0, %o7 + nop + ba,a 3b + /* Clear the startup flag. */ +4: sethi %hi(_dl_starting_up), %g2 + or %g2, %lo(_dl_starting_up), %g2 + st %g0, [%l7+%g2] + /* Pass our finalizer function to the user in %g1 + sethi %hi(_dl_fini), %g1 + or %g1, %lo(_dl_fini), %g1 + ldx [%l7+%g1], %g1 + /* Jump to the user's entry point & undo the allocation of the xtra regs. */ + jmp %l0 + add %sp, 6*8, %sp + .size _dl_start_user, .-_dl_start_user"); diff --git a/sysdeps/sparc64/elf/Makefile b/sysdeps/sparc64/elf/Makefile new file mode 100644 index 0000000000..1b38355b38 --- /dev/null +++ b/sysdeps/sparc64/elf/Makefile @@ -0,0 +1,10 @@ +# The assembler on SPARC needs the -fPIC flag even when it's assembler code. +ASFLAGS-.so = -fPIC + +ifeq ($(subdir), csu) +extra-objs += crtbegin.o crtend.o crtbeginS.o crtendS.o +install-lib += crtbegin.o crtend.o crtbeginS.o crtendS.o + +CPPFLAGS-crtbeginS.S = -fPIC -DPIC +CPPFLAGS-crtendS.S = -fPIC -DPIC +endif diff --git a/sysdeps/sparc64/elf/crtbegin.S b/sysdeps/sparc64/elf/crtbegin.S new file mode 100644 index 0000000000..fbd731cad0 --- /dev/null +++ b/sysdeps/sparc64/elf/crtbegin.S @@ -0,0 +1,49 @@ +.section ".ctors",#alloc,#write + + .align 8 +__CTOR_LIST__: + .xword -1 + +.section ".dtors",#alloc,#write + + .align 8 +__DTOR_LIST__: + .xword -1 + +.section ".fini",#alloc,#execinstr + + call __do_global_dtors_aux + nop + +.text + + .align 4 + .type __do_global_dtors_aux,#function +__do_global_dtors_aux: + save %sp,-160,%sp + +#ifdef PIC +1: rd %pc, %g1 + sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7 + or %l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7 + add %l7, %g1, %l7 + sethi %hi(__DTOR_LIST__), %l0 + or %l0, %lo(__DTOR_LIST__), %l0 + ldx [%l7+%l0], %l0 +#else + sethi %hi(__DTOR_LIST__), %l0 + or %l0, %lo(__DTOR_LIST__), %l0 + add %l0, %g4, %l0 +#endif + + ba 3f + ldx [%l0+8], %l1 +2: jmpl %l1, %o7 + ldx [%l0+8], %l1 +3: brnz,pt %l1, 2b + add %l0, 8, %l0 + + ret + restore + + .size __do_global_dtors_aux,.-__do_global_dtors_aux diff --git a/sysdeps/sparc64/elf/crtbeginS.S b/sysdeps/sparc64/elf/crtbeginS.S new file mode 100644 index 0000000000..7db4bc590e --- /dev/null +++ b/sysdeps/sparc64/elf/crtbeginS.S @@ -0,0 +1 @@ +#include "crtbegin.S" diff --git a/sysdeps/sparc64/elf/crtend.S b/sysdeps/sparc64/elf/crtend.S new file mode 100644 index 0000000000..ea69083d69 --- /dev/null +++ b/sysdeps/sparc64/elf/crtend.S @@ -0,0 +1,50 @@ +.section ".ctors",#alloc,#write + + .align 8 +__CTOR_END__: + .xword 0 + +.section ".dtors",#alloc,#write + + .align 8 +__DTOR_END__: + .xword 0 + +.section ".init",#alloc,#execinstr + + call __do_global_ctors_aux + nop + +.text + + .align 4 + .type __do_global_ctors_aux,#function +__do_global_ctors_aux: + save %sp,-160,%sp + +#ifdef PIC +1: rd %pc, %g1 + sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7 + or %l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7 + add %l7, %g1, %l7 + sethi %hi(__CTOR_END__), %l0 + or %l0, %lo(__CTOR_END__), %l0 + ldx [%l7+%l0], %l0 +#else + sethi %hi(__CTOR_END__), %l0 + or %l0, %lo(__CTOR_END__), %l0 + add %l0, %g4, %l0 +#endif + + ba 3f + ldx [%l0+8], %l1 +2: jmpl %l1, %o7 + ldx [%l0+8], %l1 +3: addcc %l1, 1, %g0 + bnz,pt %xcc, 2b + add %l0, 8, %l0 + + ret + restore + + .size __do_global_ctors_aux,.-__do_global_ctors_aux diff --git a/sysdeps/sparc64/elf/crtendS.S b/sysdeps/sparc64/elf/crtendS.S new file mode 100644 index 0000000000..56532f567d --- /dev/null +++ b/sysdeps/sparc64/elf/crtendS.S @@ -0,0 +1 @@ +#include "crtend.S" diff --git a/sysdeps/sparc64/elf/start.S b/sysdeps/sparc64/elf/start.S new file mode 100644 index 0000000000..334f85b129 --- /dev/null +++ b/sysdeps/sparc64/elf/start.S @@ -0,0 +1,93 @@ +/* Startup code for elf64-sparc + Copyright (C) 1997 Free Software Foundation, Inc. + Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., 675 Mass Ave, + Cambridge, MA 02139, USA. */ + +#include <sysdep.h> + + + .section ".text" + .align 4 + .global _start + .type _start,#function +_start: + + /* First order of business is to load %g4 with our base address. */ + sethi %uhi(_start), %g4 + or %g4, %ulo(_start), %g4 + sllx %g4, 32, %g4 + + /* Terminate the stack frame, and reserve space for functions to + drop their arguments. */ + mov %g0, %fp + sub %sp, 6*8, %sp + + /* Save %g1. When starting a binary via the dynamic linker, %g1 + contains the address of the shared library termination function, + which we will register below with atexit() to be called by exit(). + If we are statically linked, this will be NULL. */ + + /* Do essential libc initialization (sp points to argc, argv, and envp) */ + call __libc_init_first + mov %g1, %l0 + + /* Now that we have the proper stack frame, register library termination + function, if there is any: */ + + brz,pn %l0, 1f + nop + call atexit + mov %l0, %o0 +1: + + /* Extract the arguments and environment as encoded on the stack. The + argument info starts after one register window (16 words) past the SP, + plus the bias we added, plus the magic v9 STACK_BIAS. */ + ldx [%sp+STACK_BIAS+22*8], %o0 + add %sp, STACK_BIAS+23*8, %o1 + sllx %o0, 3, %o2 + add %o2, %o1, %o2 + sethi %hi(__environ), %g2 + add %o2, 8, %o2 + add %g2, %g4, %g2 + stx %o2, [%g2+%lo(__environ)] + + mov %o0, %l0 /* tuck them away */ + mov %o1, %l1 + + /* Call _init, the entry point to our own .init section. */ + call _init + mov %o2, %l2 + + /* Register our .fini section with atexit. */ + sethi %hi(_fini), %o0 + add %o0, %g4, %o0 + call atexit + add %o0, %lo(_fini), %o0 + + /* Call the user's main and exit with its return value. */ + mov %l0, %o0 + mov %l1, %o1 + call main + mov %l2, %o2 + call exit + nop + + /* Die very horribly if exit returns. */ + illtrap 0 + + .size _start,.-_start diff --git a/sysdeps/sparc64/fpu_control.h b/sysdeps/sparc64/fpu_control.h new file mode 100644 index 0000000000..fd8abb19f1 --- /dev/null +++ b/sysdeps/sparc64/fpu_control.h @@ -0,0 +1,69 @@ +/* FPU control word bits. SPARC v9 version. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Miguel de Icaza + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _FPU_CONTROL_H +#define _FPU_CONTROL_H 1 + + +#include <features.h> + +/* precision control */ +#define _FPU_EXTENDED 0x00000000 /* RECOMMENDED */ +#define _FPU_DOUBLE 0x20000000 +#define _FPU_80BIT 0x30000000 +#define _FPU_SINGLE 0x10000000 /* DO NOT USE */ + +/* rounding control / Sparc */ +#define _FPU_RC_DOWN 0xc0000000 +#define _FPU_RC_UP 0x80000000 +#define _FPU_RC_ZERO 0x40000000 +#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ + +#define _FPU_RESERVED 0x30300000 /* Reserved bits in cw */ + + +/* Now two recommended cw */ + +/* Linux default: + - extended precision + - rounding to nearest + - no exceptions */ +#define _FPU_DEFAULT 0x0 + +/* IEEE: same as above */ +#define _FPU_IEEE 0x0 + +/* Type of the control word. */ +typedef unsigned long fpu_control_t; + +#define _FPU_GETCW(cw) __asm__ ("stx %%fsr,%0" : "=m" (*&cw)) +#define _FPU_SETCW(cw) __asm__ ("ldx %0,%%fsr" : : "m" (*&cw)) + +/* Default control word set at startup. */ +extern fpu_control_t __fpu_control; + +__BEGIN_DECLS + +/* Called at startup. It can be used to manipulate fpu control register. */ +extern void __setfpucw __P ((fpu_control_t)); + +__END_DECLS + +#endif /* fpu_control.h */ diff --git a/sysdeps/sparc64/gmp-mparam.h b/sysdeps/sparc64/gmp-mparam.h new file mode 100644 index 0000000000..a3c66974de --- /dev/null +++ b/sysdeps/sparc64/gmp-mparam.h @@ -0,0 +1,27 @@ +/* gmp-mparam.h -- Compiler/machine parameter header file. + +Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Library General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at your +option) any later version. + +The GNU MP 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 Library General Public +License for more details. + +You should have received a copy of the GNU Library General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#define BITS_PER_MP_LIMB 64 +#define BYTES_PER_MP_LIMB 8 +#define BITS_PER_LONGINT 64 +#define BITS_PER_INT 32 +#define BITS_PER_SHORTINT 16 +#define BITS_PER_CHAR 8 diff --git a/sysdeps/sparc64/lshift.S b/sysdeps/sparc64/lshift.S new file mode 100644 index 0000000000..1678991529 --- /dev/null +++ b/sysdeps/sparc64/lshift.S @@ -0,0 +1,96 @@ +/* SPARC v9 __mpn_lshift -- + + Copyright (C) 1996 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* INPUT PARAMETERS + res_ptr %i0 + src_ptr %i1 + size %i2 + cnt %i3 */ + +ENTRY(__mpn_lshift) + save %sp, -128, %sp + + sllx %i2,3,%g1 + add %i1,%g1,%i1 ! make %i1 point at end of src + ldx [%i1-8],%g2 ! load first limb + sub %g0,%i3,%i5 ! negate shift count + add %i0,%g1,%i0 ! make %i0 point at end of res + add %i2,-1,%i2 + and %i2,4-1,%l4 ! number of limbs in first loop + srlx %g2,%i5,%g1 ! compute function result + brz,pn %l4,.L0 ! if multiple of 4 limbs, skip first loop + mov %g1,%l1 + + sub %i2,%l4,%i2 ! adjust count for main loop + +.Loop0: ldx [%i1-16],%g3 + add %i0,-8,%i0 + add %i1,-8,%i1 + add %l4,-1,%l4 + sllx %g2,%i3,%i4 + srlx %g3,%i5,%g1 + mov %g3,%g2 + or %i4,%g1,%i4 + brnz,pt %l4,.Loop0 + stx %i4,[%i0+0] + +.L0: brz,pn %i2,.Lend + nop + +.Loop: ldx [%i1-16],%g3 + add %i0,-32,%i0 + add %i2,-4,%i2 + sllx %g2,%i3,%i4 + srlx %g3,%i5,%g1 + + ldx [%i1-24],%g2 + sllx %g3,%i3,%l4 + or %i4,%g1,%i4 + stx %i4,[%i0+24] + srlx %g2,%i5,%g1 + + ldx [%i1-32],%g3 + sllx %g2,%i3,%i4 + or %l4,%g1,%l4 + stx %l4,[%i0+16] + srlx %g3,%i5,%g1 + + ldx [%i1-40],%g2 + sllx %g3,%i3,%l4 + or %i4,%g1,%i4 + stx %i4,[%i0+8] + srlx %g2,%i5,%g1 + + add %i1,-32,%i1 + or %l4,%g1,%l4 + brnz,pt %i2,.Loop + stx %l4,[%i0+0] + +.Lend: sllx %g2,%i3,%g2 + stx %g2,[%i0-8] + + mov %l1,%i0 + jmpl %i7+8, %g0 + restore + +END(__mpn_lshift) diff --git a/sysdeps/sparc64/mul_1.S b/sysdeps/sparc64/mul_1.S new file mode 100644 index 0000000000..87e441d7eb --- /dev/null +++ b/sysdeps/sparc64/mul_1.S @@ -0,0 +1,84 @@ +/* SPARC v9 __mpn_mul_1 -- Multiply a limb vector with a single limb and + store the product in a second limb vector. + + Copyright (C) 1995, 1996 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +#include <sysdep.h> + + +/* INPUT PARAMETERS + res_ptr o0 + s1_ptr o1 + size o2 + s2_limb o3 */ + +ENTRY(__mpn_mul_1) + !#PROLOGUE# 0 + save %sp,-128,%sp + !#PROLOGUE# 1 + + sub %g0,%i2,%o7 + sllx %o7,3,%g5 + sub %i1,%g5,%o3 + sub %i0,%g5,%o4 + mov 0,%o0 ! zero cy_limb + + srl %i3,0,%o1 ! extract low 32 bits of s2_limb + srlx %i3,32,%i3 ! extract high 32 bits of s2_limb + mov 1,%o2 + sllx %o2,32,%o2 ! o2 = 0x100000000 + + ! hi ! + ! mid-1 ! + ! mid-2 ! + ! lo ! +.Loop: + sllx %o7,3,%g1 + ldx [%o3+%g1],%g5 + srl %g5,0,%i0 ! zero hi bits + srlx %g5,32,%g5 + mulx %o1,%i0,%i4 ! lo product + mulx %i3,%i0,%i1 ! mid-1 product + mulx %o1,%g5,%l2 ! mid-2 product + mulx %i3,%g5,%i5 ! hi product + srlx %i4,32,%i0 ! extract high 32 bits of lo product... + add %i1,%i0,%i1 ! ...and add it to the mid-1 product + addcc %i1,%l2,%i1 ! add mid products + mov 0,%l0 ! we need the carry from that add... + movcs %xcc,%o2,%l0 ! ...compute it and... + add %i5,%l0,%i5 ! ...add to bit 32 of the hi product + sllx %i1,32,%i0 ! align low bits of mid product + srl %i4,0,%g5 ! zero high 32 bits of lo product + add %i0,%g5,%i0 ! combine into low 64 bits of result + srlx %i1,32,%i1 ! extract high bits of mid product... + add %i5,%i1,%i1 ! ...and add them to the high result + addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result + mov 0,%g5 + movcs %xcc,1,%g5 + add %o7,1,%o7 + stx %i0,[%o4+%g1] + brnz %o7,.Loop + add %i1,%g5,%o0 ! compute new cy_limb + + mov %o0,%i0 + jmpl %i7+8,%g0 + restore + +END(__mpn_mul_1) diff --git a/sysdeps/sparc64/rshift.S b/sysdeps/sparc64/rshift.S new file mode 100644 index 0000000000..e1b3aca112 --- /dev/null +++ b/sysdeps/sparc64/rshift.S @@ -0,0 +1,93 @@ +/* SPARC v9 __mpn_rshift -- + + Copyright (C) 1996 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* INPUT PARAMETERS + res_ptr %i0 + src_ptr %i1 + size %i2 + cnt %i3 */ + +ENTRY(__mpn_rshift) + save %sp, -128, %sp + + ldx [%i1],%g2 ! load first limb + sub %g0,%i3,%i5 ! negate shift count + add %i2,-1,%i2 + and %i2,4-1,%l4 ! number of limbs in first loop + sllx %g2,%i5,%g1 ! compute function result + brz,pn %l4,.L0 ! if multiple of 4 limbs, skip first loop + mov %g1,%l1 + + sub %i2,%l4,%i2 ! adjust count for main loop + +.Loop0: ldx [%i1+8],%g3 + add %i0,8,%i0 + add %i1,8,%i1 + add %l4,-1,%l4 + srlx %g2,%i3,%i4 + sllx %g3,%i5,%g1 + mov %g3,%g2 + or %i4,%g1,%i4 + brnz,pt %l4,.Loop0 + stx %i4,[%i0-8] + +.L0: brz,pn %i2,.Lend + nop + +.Loop: ldx [%i1+8],%g3 + add %i0,32,%i0 + add %i2,-4,%i2 + srlx %g2,%i3,%i4 + sllx %g3,%i5,%g1 + + ldx [%i1+16],%g2 + srlx %g3,%i3,%l4 + or %i4,%g1,%i4 + stx %i4,[%i0-32] + sllx %g2,%i5,%g1 + + ldx [%i1+24],%g3 + srlx %g2,%i3,%i4 + or %l4,%g1,%l4 + stx %l4,[%i0-24] + sllx %g3,%i5,%g1 + + ldx [%i1+32],%g2 + srlx %g3,%i3,%l4 + or %i4,%g1,%i4 + stx %i4,[%i0-16] + sllx %g2,%i5,%g1 + + add %i1,32,%i1 + or %l4,%g1,%l4 + brnz %i2,.Loop + stx %l4,[%i0-8] + +.Lend: srlx %g2,%i3,%g2 + stx %g2,[%i0-0] + + mov %l1,%i0 + jmpl %i7+8,%g0 + restore + +END(__mpn_rshift) diff --git a/sysdeps/sparc64/sub_n.S b/sysdeps/sparc64/sub_n.S new file mode 100644 index 0000000000..93f8a8235d --- /dev/null +++ b/sysdeps/sparc64/sub_n.S @@ -0,0 +1,55 @@ +/* SPARC v9 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 + and store difference in a third limb vector. + + Copyright (C) 1995, 1996 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* INPUT PARAMETERS + res_ptr %o0 + s1_ptr %o1 + s2_ptr %o2 + size %o3 */ + +ENTRY(__mpn_sub_n) + + sub %g0,%o3,%g3 + sllx %o3,3,%g1 + add %o1,%g1,%o1 ! make s1_ptr point at end + add %o2,%g1,%o2 ! make s2_ptr point at end + add %o0,%g1,%o0 ! make res_ptr point at end + mov 0,%o4 ! clear carry variable + sllx %g3,3,%o5 ! compute initial address index + +1: ldx [%o2+%o5],%g1 ! load s2 limb + add %g3,1,%g3 ! increment loop count + ldx [%o1+%o5],%g2 ! load s1 limb + addcc %g1,%o4,%g1 ! add s2 limb and carry variable + movcc %xcc,0,%o4 ! if carry-out, o4 was 1; clear it + subcc %g1,%g2,%g1 ! subtract s1 limb from sum + stx %g1,[%o0+%o5] ! store result + add %o5,8,%o5 ! increment address index + brnz,pt %g3,1b + movcs %xcc,1,%o4 ! if s1 subtract gave carry, record it + + retl + mov %o4,%o0 + +END(__mpn_sub_n) diff --git a/sysdeps/sparc64/submul_1.S b/sysdeps/sparc64/submul_1.S new file mode 100644 index 0000000000..3cc0e3bb08 --- /dev/null +++ b/sysdeps/sparc64/submul_1.S @@ -0,0 +1,87 @@ +/* SPARC v9 __mpn_submul_1 -- Multiply a limb vector with a single limb and + subtract the product from a second limb vector. + + Copyright (C) 1996 Free Software Foundation, Inc. + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP 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 Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +#include <sysdep.h> + + +/* INPUT PARAMETERS + res_ptr o0 + s1_ptr o1 + size o2 + s2_limb o3 */ + +ENTRY(__mpn_submul_1) + !#PROLOGUE# 0 + save %sp,-128,%sp + !#PROLOGUE# 1 + + sub %g0,%i2,%o7 + sllx %o7,3,%g5 + sub %i1,%g5,%o3 + sub %i0,%g5,%o4 + mov 0,%o0 ! zero cy_limb + + srl %i3,0,%o1 ! extract low 32 bits of s2_limb + srlx %i3,32,%i3 ! extract high 32 bits of s2_limb + mov 1,%o2 + sllx %o2,32,%o2 ! o2 = 0x100000000 + + ! hi ! + ! mid-1 ! + ! mid-2 ! + ! lo ! +.Loop: + sllx %o7,3,%g1 + ldx [%o3+%g1],%g5 + srl %g5,0,%i0 ! zero hi bits + srlx %g5,32,%g5 + mulx %o1,%i0,%i4 ! lo product + mulx %i3,%i0,%i1 ! mid-1 product + mulx %o1,%g5,%l2 ! mid-2 product + mulx %i3,%g5,%i5 ! hi product + srlx %i4,32,%i0 ! extract high 32 bits of lo product... + add %i1,%i0,%i1 ! ...and add it to the mid-1 product + addcc %i1,%l2,%i1 ! add mid products + mov 0,%l0 ! we need the carry from that add... + movcs %xcc,%o2,%l0 ! ...compute it and... + add %i5,%l0,%i5 ! ...add to bit 32 of the hi product + sllx %i1,32,%i0 ! align low bits of mid product + srl %i4,0,%g5 ! zero high 32 bits of lo product + add %i0,%g5,%i0 ! combine into low 64 bits of result + srlx %i1,32,%i1 ! extract high bits of mid product... + add %i5,%i1,%i1 ! ...and add them to the high result + addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result + mov 0,%g5 + movcs %xcc,1,%g5 + add %o7,1,%o7 + ldx [%o4+%g1],%l1 + subcc %l1,%i0,%i0 + movcs %xcc,1,%g5 + stx %i0,[%o4+%g1] + brnz %o7,.Loop + add %i1,%g5,%o0 ! compute new cy_limb + + mov %o0,%i0 + jmpl %i7+8,%g0 + restore + +END(__mpn_submul_1) |