Add @plt if -fpic; Fix double->int conversions if stack > 32k; Redo t-* files; Fix trampolines on System V systems
From-SVN: r13298
This commit is contained in:
Michael Meissner
parent
a0a7cb3547
commit
eaf1bcf15b
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@ -4381,65 +4381,6 @@ int get_issue_rate()
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}
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}
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/* Output insns to flush the {data|instruction} caches after building a
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trampoline. */
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static void
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rs6000_sync_trampoline (addr)
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rtx addr;
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{
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enum machine_mode pmode = Pmode;
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rtx reg = gen_reg_rtx (pmode);
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rtx mem2;
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rtx mem1;
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int size = rs6000_trampoline_size ();
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rtx (*sub_fcn) PROTO ((rtx, rtx, rtx));
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rtx (*cmp_fcn) PROTO ((rtx, rtx));
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rtx label;
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if (TARGET_32BIT)
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{
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sub_fcn = gen_subsi3;
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cmp_fcn = gen_cmpsi;
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}
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else
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{
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sub_fcn = gen_subdi3;
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cmp_fcn = gen_cmpdi;
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}
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addr = force_reg (pmode, addr);
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mem2 = gen_rtx (MEM, pmode, gen_rtx (PLUS, pmode, addr, reg));
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mem1 = gen_rtx (MEM, pmode, addr);
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/* Issue a loop of dcbst's to flush the data cache */
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emit_move_insn (reg, GEN_INT (size-4));
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label = gen_label_rtx ();
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emit_label (label);
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emit_insn (gen_dcbst (mem2, addr, reg));
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emit_insn ((*sub_fcn) (reg, reg, GEN_INT (4)));
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emit_insn ((*cmp_fcn) (reg, const0_rtx));
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emit_jump_insn (gen_bgt (label));
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/* Issue a sync after the dcbst's to let things settle down */
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emit_insn (gen_sync (mem1));
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/* Issue a loop of icbi's to flush the instruction cache */
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emit_move_insn (reg, GEN_INT (size-4));
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label = gen_label_rtx ();
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emit_label (label);
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emit_insn (gen_icbi (mem2, addr, reg));
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emit_insn ((*sub_fcn) (reg, reg, GEN_INT (4)));
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emit_insn ((*cmp_fcn) (reg, const0_rtx));
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emit_jump_insn (gen_bgt (label));
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/* Issue a sync after the icbi's to let things settle down */
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emit_insn (gen_sync (mem1));
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/* Finally issue an isync to synchronize the icache */
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emit_insn (gen_isync (mem1));
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}
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/* Output assembler code for a block containing the constant parts
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@ -4466,7 +4407,6 @@ rs6000_trampoline_template (file)
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the address of the function, the second word is the TOC pointer (r2),
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and the third word is the static chain value. */
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case ABI_AIX:
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fprintf (file, "\t.long %s\n", (TARGET_32BIT) ? "0,0,0" : "0,0,0,0,0,0");
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break;
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@ -4475,35 +4415,6 @@ rs6000_trampoline_template (file)
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case ABI_V4:
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case ABI_SOLARIS:
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case ABI_AIX_NODESC:
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if (STATIC_CHAIN_REGNUM == 0 || !TARGET_NEW_MNEMONICS)
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abort ();
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if (TARGET_32BIT)
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{
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fprintf (file, "\tmflr %s\n", r0); /* offset 0 */
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fprintf (file, "\tbl .LTRAMP1\n"); /* offset 4 */
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fprintf (file, "\t.long 0,0\n"); /* offset 8 */
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fprintf (file, ".LTRAMP1:\n");
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fprintf (file, "\tmflr %s\n", sc); /* offset 20 */
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fprintf (file, "\tmtlr %s\n", r0); /* offset 24 */
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fprintf (file, "\tlwz %s,0(%s)\n", r0, sc); /* offset 28 */
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fprintf (file, "\tlwz %s,4(%s)\n", sc, sc); /* offset 32 */
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fprintf (file, "\tmtctr %s\n", r0); /* offset 36 */
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fprintf (file, "\tbctr\n"); /* offset 40 */
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}
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else
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{
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fprintf (file, "\tmflr %s\n", r0); /* offset 0 */
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fprintf (file, "\tbl .LTRAMP1\n"); /* offset 4 */
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fprintf (file, "\t.long 0,0,0,0\n"); /* offset 8 */
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fprintf (file, ".LTRAMP1:\n");
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fprintf (file, "\tmflr %s\n", sc); /* offset 28 */
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fprintf (file, "\tmtlr %s\n", r0); /* offset 32 */
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fprintf (file, "\tld %s,0(%s)\n", r0, sc); /* offset 36 */
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fprintf (file, "\tld %s,8(%s)\n", sc, sc); /* offset 40 */
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fprintf (file, "\tmtctr %s\n", r0); /* offset 44 */
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fprintf (file, "\tbctr\n"); /* offset 48 */
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}
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break;
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/* NT function pointers point to a two word area (real address, TOC)
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@ -4600,18 +4511,16 @@ rs6000_initialize_trampoline (addr, fnaddr, cxt)
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}
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break;
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/* Under V.4/eabi, update the two words after the bl to have the real
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function address and the static chain. */
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/* Under V.4/eabi, call __trampoline_setup to do the real work. */
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case ABI_V4:
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case ABI_SOLARIS:
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case ABI_AIX_NODESC:
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{
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rtx reg = gen_reg_rtx (pmode);
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emit_move_insn (reg, fnaddr);
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emit_move_insn (MEM_PLUS (addr, 8), reg);
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emit_move_insn (MEM_PLUS (addr, 8 + regsize), ctx_reg);
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rs6000_sync_trampoline (addr);
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}
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emit_library_call (gen_rtx (SYMBOL_REF, SImode, "__trampoline_setup"),
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FALSE, VOIDmode, 4,
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addr, pmode,
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GEN_INT (rs6000_trampoline_size ()), SImode,
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fnaddr, pmode,
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ctx_reg, pmode);
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break;
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/* Under NT, update the first word to point to the ..LTRAMP1..0 header,
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@ -4944,74 +4853,3 @@ rs6000_encode_section_info (decl)
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}
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#endif /* USING_SVR4_H */
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/* CYGNUS LOCAL mac */
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/* Whether we are using m68k-compatible alignment. */
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int mac68k_aligned;
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/* Most Mac compiler pragmas are unimportant, but we must recognize
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the m68k alignment pragma, because that is crucial to transitions
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to and from the m68k emulator on PowerMacs. */
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int
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handle_mac_pragma (finput, t)
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FILE *finput;
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tree t;
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{
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int retval = 0;
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register char *pname;
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char pbuf[200];
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int c, psize = 0;
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if (TREE_CODE (t) != IDENTIFIER_NODE)
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return 0;
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pname = IDENTIFIER_POINTER (t);
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if (strcmp (pname, "segment") == 0)
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{
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/* (should collect pbuf + 8 into a segment name) */
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}
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else if (strcmp (pname, "options") == 0)
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{
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c = getc (finput);
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/* Skip over initial whitespace. */
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while (c == ' ' || c == '\t')
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c = getc (finput);
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/* Return without doing anything if no content. */
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if (c == '\n' || c == EOF)
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{
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ungetc (c, finput);
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return 0;
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}
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/* Collect the rest of the line. */
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while (psize < sizeof (pbuf) - 1 && c != '\n')
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{
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pbuf[psize++] = c;
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c = getc (finput);
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}
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if (strncmp (pbuf, "align=mac68k", 12) == 0)
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{
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mac68k_aligned = 1;
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retval = 1;
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}
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else if (strncmp (pbuf, "align=power", 11) == 0)
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{
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mac68k_aligned = 0;
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retval = 1;
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}
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else if (strncmp (pbuf, "align=reset", 11) == 0)
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{
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mac68k_aligned = 0;
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retval = 1;
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}
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}
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return retval;
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}
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/* END CYGNUS LOCAL mac */
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@ -441,7 +441,6 @@ struct rs6000_cpu_select
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extern struct rs6000_cpu_select rs6000_select[];
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/* Sometimes certain combinations of command options do not make sense
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on a particular target machine. You can define a macro
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`OVERRIDE_OPTIONS' to take account of this. This macro, if
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@ -1520,12 +1519,7 @@ typedef struct rs6000_args
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#define FUNCTION_EPILOGUE(FILE, SIZE) output_epilog (FILE, SIZE)
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/* Output assembler code for a block containing the constant parts
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of a trampoline, leaving space for the variable parts.
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The trampoline should set the static chain pointer to value placed
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into the trampoline and should branch to the specified routine. */
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#define TRAMPOLINE_TEMPLATE(FILE) rs6000_trampoline_template (FILE)
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/* TRAMPOLINE_TEMPLATE deleted */
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/* Length in units of the trampoline for entering a nested function. */
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@ -3836,7 +3836,8 @@
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operands[2] = gen_rtx (MEM, DFmode,
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gen_rtx (PLUS, Pmode,
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indx,
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GEN_INT (rs6000_fpmem_offset)));
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GEN_INT ((((rs6000_fpmem_offset & 0xffff)
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^ 0x8000) - 0x8000))));
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return \"stfd %0,%w2\";
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}"
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@ -7359,7 +7360,7 @@
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else if (INTVAL (operands[2]) & CALL_V4_CLEAR_FP_ARGS)
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output_asm_insn (\"creqv 6,6,6\", operands);
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return \"bl %z0\";
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return (flag_pic) ? \"bl %z0@plt\" : \"bl %z0\";
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}"
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[(set_attr "type" "branch")
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(set_attr "length" "4,8")])
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@ -7429,7 +7430,7 @@
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else if (INTVAL (operands[3]) & CALL_V4_CLEAR_FP_ARGS)
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output_asm_insn (\"creqv 6,6,6\", operands);
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return \"bl %z1\";
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return (flag_pic) ? \"bl %z1@plt\" : \"bl %z1\";
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}"
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[(set_attr "type" "branch")
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(set_attr "length" "4,8")])
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@ -7470,41 +7471,13 @@
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""
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"")
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;; Synchronize instructions/data caches for V.4 trampolines
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;; The extra memory_operand is to prevent the optimizer from
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;; deleting insns with "no" effect.
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(define_insn "icbi"
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[(unspec [(match_operand 0 "memory_operand" "=m")
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(match_operand 1 "register_operand" "b")
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(match_operand 2 "register_operand" "r")] 3)]
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"TARGET_POWERPC"
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"icbi %1,%2")
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(define_insn "dcbst"
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[(unspec [(match_operand 0 "memory_operand" "=m")
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(match_operand 1 "register_operand" "b")
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(match_operand 2 "register_operand" "r")] 4)]
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"TARGET_POWERPC"
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"dcbst %1,%2")
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(define_insn "sync"
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[(unspec [(match_operand 0 "memory_operand" "=m")] 5)]
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""
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"{dcs|sync}")
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(define_insn "isync"
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[(unspec [(match_operand 0 "memory_operand" "=m")] 6)]
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""
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"{ics|isync}")
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;; V.4 specific code to initialize the PIC register
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(define_insn "init_v4_pic"
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[(set (match_operand:SI 0 "register_operand" "=l")
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(unspec [(const_int 0)] 7))]
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"DEFAULT_ABI == ABI_V4 || DEFAULT_ABI == ABI_SOLARIS"
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"bl _GLOBAL_OFFSET_TABLE_-4"
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"bl _GLOBAL_OFFSET_TABLE_@local-4"
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[(set_attr "type" "branch")])
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@ -84,12 +84,13 @@ _start(int argc, char *argv[], char *envp[], void *auxp, void (*termfunc)())
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int ret;
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int dummy = 0;
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/* Load up r13 before we do anything else. */
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__asm__ volatile ("mr %%r13,%0;mr %%r2,%1" : "=r" (dummy) : "r" (&_SDA_BASE_[0]), "r" (&_SDA2_BASE_[0]));
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_environ = envp;
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/* Load up r13/r2 before we do anything else. */
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__asm__ volatile ("mr %%r13,%0;mr %%r2,%1" : "=r" (dummy) : "r" (&_SDA_BASE_[0]), "r" (&_SDA2_BASE_[0]), "r" (dummy));
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_environ = envp + dummy;
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/* Register loader termination function */
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if (termfunc || dummy)
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/* Register loader termination function (the || dummy is to make sure the above asm
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is not optimized away). */
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if (termfunc)
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atexit (termfunc);
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/* Register exception handler if needed */
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@ -967,7 +967,7 @@ do { \
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%{memb} %{!memb: %{msdata: -memb} %{msdata=eabi: -memb}} \
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%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian} \
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%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
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%{mcall-solaris: -mlittle} %{mcall-linux: -mbig} }}}}"
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%{mcall-solaris: -mlittle -msolaris} %{mcall-linux: -mbig} }}}}"
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#undef CC1_SPEC
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/* Pass -G xxx to the compiler and set correct endian mode */
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@ -1,68 +1,12 @@
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# Do not build libgcc1.
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LIBGCC1 =
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CROSS_LIBGCC1 =
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# These are really part of libgcc1, but this will cause them to be
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# built correctly, so... [taken from t-sparclite]
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LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c eabi.S eabi-ctors.c
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dp-bit.c: $(srcdir)/config/fp-bit.c
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cat $(srcdir)/config/fp-bit.c > dp-bit.c
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fp-bit.c: $(srcdir)/config/fp-bit.c
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echo '#define FLOAT' > fp-bit.c
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cat $(srcdir)/config/fp-bit.c >> fp-bit.c
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eabi.S: $(srcdir)/config/rs6000/eabi.asm
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cat $(srcdir)/config/rs6000/eabi.asm > eabi.S
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eabi-ctors.c: $(srcdir)/config/rs6000/eabi-ctors.c
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cat $(srcdir)/config/rs6000/eabi-ctors.c > eabi-ctors.c
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# PowerPC support without gas
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# Build libgcc.a with different options. If no gas support, don't build
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# explicit little endian or big endian libraries, since it depends on the
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# -mbig/-mlittle switches passed to gas. The -mrelocatable support also needs
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# -mrelocatable passed to gas, so don't use it either.
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MULTILIB_OPTIONS = msoft-float
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MULTILIB_DIRNAMES = nof
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MULTILIB_MATCHES =
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MULTILIB_EXCEPTIONS =
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LIBGCC = stmp-multilib
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INSTALL_LIBGCC = install-multilib
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EXTRA_MULTILIB_PARTS = ecrti$(objext) ecrtn$(objext) scrt0$(objext) scrti$(objext) scrtn$(objext)
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# For eabigas we build {e,s}crti.o and {e,s}crtn.o which serve to add begin and
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# end labels to all of the special sections used when we link using gcc.
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# Assemble startup files.
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ecrti.S: $(srcdir)/config/rs6000/eabi-ci.asm
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cat $(srcdir)/config/rs6000/eabi-ci.asm >ecrti.S
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ecrtn.S: $(srcdir)/config/rs6000/eabi-cn.asm
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cat $(srcdir)/config/rs6000/eabi-cn.asm >ecrtn.S
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scrti.S: $(srcdir)/config/rs6000/sol-ci.asm
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cat $(srcdir)/config/rs6000/sol-ci.asm >scrti.S
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scrtn.S: $(srcdir)/config/rs6000/sol-cn.asm
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cat $(srcdir)/config/rs6000/sol-cn.asm >scrtn.S
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scrt0.c: $(srcdir)/config/rs6000/sol-c0.c
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cat $(srcdir)/config/rs6000/sol-c0.c >scrt0.c
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# Build multiple copies of ?crt{i,n}.o, one for each target switch.
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$(T)ecrti$(objext): ecrti.S
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)ecrti$(objext)
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$(T)ecrtn$(objext): ecrtn.S
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrtn.S -o $(T)ecrtn$(objext)
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$(T)scrti$(objext): scrti.S
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)scrti$(objext)
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$(T)scrtn$(objext): scrtn.S
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)scrtn$(objext)
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$(T)scrt0$(objext): scrt0.c
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)scrt0$(objext)
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MULTILIB_EXTRA_OPTS =
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MULTILIB_MATCHES = ${MULTILIB_MATCHES_FLOAT}
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|
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@ -0,0 +1,69 @@
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# Common support for PowerPC eabi, System V targets.
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# Do not build libgcc1.
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||||
LIBGCC1 =
|
||||
CROSS_LIBGCC1 =
|
||||
|
||||
# These are really part of libgcc1, but this will cause them to be
|
||||
# built correctly, so... [taken from t-sparclite]
|
||||
LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c eabi.S eabi-ctors.c tramp.S
|
||||
|
||||
dp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c > dp-bit.c
|
||||
|
||||
fp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
echo '#define FLOAT' > fp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c >> fp-bit.c
|
||||
|
||||
eabi.S: $(srcdir)/config/rs6000/eabi.asm
|
||||
cat $(srcdir)/config/rs6000/eabi.asm > eabi.S
|
||||
|
||||
eabi-ctors.c: $(srcdir)/config/rs6000/eabi-ctors.c
|
||||
cat $(srcdir)/config/rs6000/eabi-ctors.c > eabi-ctors.c
|
||||
|
||||
tramp.S: $(srcdir)/config/rs6000/tramp.asm
|
||||
cat $(srcdir)/config/rs6000/tramp.asm > tramp.S
|
||||
|
||||
# Switch synonyms
|
||||
MULTILIB_MATCHES_FLOAT = msoft-float=mcpu?403 msoft-float=mcpu?821 msoft-float=mcpu?860
|
||||
MULTILIB_MATCHES_ENDIAN = mlittle=mlittle-endian mbig=mbig-endian
|
||||
MULTILIB_MATCHES_SYSV = mcall-sysv=mcall-sysv-eabi mcall-sysv=mcall-sysv-noeabi
|
||||
|
||||
LIBGCC = stmp-multilib
|
||||
INSTALL_LIBGCC = install-multilib
|
||||
EXTRA_MULTILIB_PARTS = ecrti$(objext) ecrtn$(objext) scrt0$(objext) scrti$(objext) scrtn$(objext)
|
||||
|
||||
# We build {e,s}crti.o, {e,s}crtn.o, and scrt0.o which serve to add begin and
|
||||
# end labels to all of the special sections used when we link using gcc.
|
||||
|
||||
# Assemble startup files.
|
||||
ecrti.S: $(srcdir)/config/rs6000/eabi-ci.asm
|
||||
cat $(srcdir)/config/rs6000/eabi-ci.asm >ecrti.S
|
||||
|
||||
ecrtn.S: $(srcdir)/config/rs6000/eabi-cn.asm
|
||||
cat $(srcdir)/config/rs6000/eabi-cn.asm >ecrtn.S
|
||||
|
||||
scrti.S: $(srcdir)/config/rs6000/sol-ci.asm
|
||||
cat $(srcdir)/config/rs6000/sol-ci.asm >scrti.S
|
||||
|
||||
scrtn.S: $(srcdir)/config/rs6000/sol-cn.asm
|
||||
cat $(srcdir)/config/rs6000/sol-cn.asm >scrtn.S
|
||||
|
||||
scrt0.c: $(srcdir)/config/rs6000/sol-c0.c
|
||||
cat $(srcdir)/config/rs6000/sol-c0.c >scrt0.c
|
||||
|
||||
# Build multiple copies of ?crt{i,n}.o, one for each target switch.
|
||||
$(T)ecrti$(objext): ecrti.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)ecrti$(objext)
|
||||
|
||||
$(T)ecrtn$(objext): ecrtn.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrtn.S -o $(T)ecrtn$(objext)
|
||||
|
||||
$(T)scrti$(objext): scrti.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c scrti.S -o $(T)scrti$(objext)
|
||||
|
||||
$(T)scrtn$(objext): scrtn.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c scrtn.S -o $(T)scrtn$(objext)
|
||||
|
||||
$(T)scrt0$(objext): scrt0.c
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c scrt0.c -o $(T)scrt0$(objext)
|
||||
|
|
@ -1,24 +1,4 @@
|
|||
# Do not build libgcc1.
|
||||
LIBGCC1 =
|
||||
CROSS_LIBGCC1 =
|
||||
|
||||
# These are really part of libgcc1, but this will cause them to be
|
||||
# built correctly, so... [taken from t-sparclite]
|
||||
LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c eabi.S eabi-ctors.c
|
||||
|
||||
dp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c > dp-bit.c
|
||||
|
||||
fp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
echo '#define FLOAT' > fp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c >> fp-bit.c
|
||||
|
||||
eabi.S: $(srcdir)/config/rs6000/eabi.asm
|
||||
cat $(srcdir)/config/rs6000/eabi.asm > eabi.S
|
||||
|
||||
eabi-ctors.c: $(srcdir)/config/rs6000/eabi-ctors.c
|
||||
cat $(srcdir)/config/rs6000/eabi-ctors.c > eabi-ctors.c
|
||||
|
||||
# PowerPC embedded support with gas.
|
||||
# Build libgcc.a with different options.
|
||||
|
||||
MULTILIB_OPTIONS = msoft-float \
|
||||
|
|
@ -29,14 +9,6 @@ MULTILIB_DIRNAMES = nof \
|
|||
le be \
|
||||
cs ca sol lin
|
||||
|
||||
MULTILIB_MATCHES = mlittle=mlittle-endian \
|
||||
mbig=mbig-endian \
|
||||
msoft-float=mcpu?403 \
|
||||
msoft-float=mcpu?821 \
|
||||
msoft-float=mcpu?860 \
|
||||
mcall-sysv=mcall-sysv-eabi \
|
||||
mcall-sysv=mcall-sysv-noeabi
|
||||
|
||||
MULTILIB_EXTRA_OPTS = mrelocatable-lib mno-eabi
|
||||
MULTILIB_EXCEPTIONS = *mbig/*mcall-solaris* \
|
||||
*mlittle/*mcall-solaris* \
|
||||
|
|
@ -45,41 +17,6 @@ MULTILIB_EXCEPTIONS = *mbig/*mcall-solaris* \
|
|||
*mlittle/*mcall-linux* \
|
||||
*msoft-float/*mcall-linux*
|
||||
|
||||
LIBGCC = stmp-multilib
|
||||
INSTALL_LIBGCC = install-multilib
|
||||
EXTRA_MULTILIB_PARTS = ecrti$(objext) ecrtn$(objext) scrt0$(objext) scrti$(objext) scrtn$(objext)
|
||||
|
||||
# For eabigas we build {e,s}crti.o and {e,s}crtn.o which serve to add begin and
|
||||
# end labels to all of the special sections used when we link using gcc.
|
||||
|
||||
# Assemble startup files.
|
||||
ecrti.S: $(srcdir)/config/rs6000/eabi-ci.asm
|
||||
cat $(srcdir)/config/rs6000/eabi-ci.asm >ecrti.S
|
||||
|
||||
ecrtn.S: $(srcdir)/config/rs6000/eabi-cn.asm
|
||||
cat $(srcdir)/config/rs6000/eabi-cn.asm >ecrtn.S
|
||||
|
||||
scrti.S: $(srcdir)/config/rs6000/sol-ci.asm
|
||||
cat $(srcdir)/config/rs6000/sol-ci.asm >scrti.S
|
||||
|
||||
scrtn.S: $(srcdir)/config/rs6000/sol-cn.asm
|
||||
cat $(srcdir)/config/rs6000/sol-cn.asm >scrtn.S
|
||||
|
||||
scrt0.c: $(srcdir)/config/rs6000/sol-c0.c
|
||||
cat $(srcdir)/config/rs6000/sol-c0.c >scrt0.c
|
||||
|
||||
# Build multiple copies of ?crt{i,n}.o, one for each target switch.
|
||||
$(T)ecrti$(objext): ecrti.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)ecrti$(objext)
|
||||
|
||||
$(T)ecrtn$(objext): ecrtn.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrtn.S -o $(T)ecrtn$(objext)
|
||||
|
||||
$(T)scrti$(objext): scrti.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)scrti$(objext)
|
||||
|
||||
$(T)scrtn$(objext): scrtn.S
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)scrtn$(objext)
|
||||
|
||||
$(T)scrt0$(objext): scrt0.c
|
||||
$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)scrt0$(objext)
|
||||
MULTILIB_MATCHES = ${MULTILIB_MATCHES_FLOAT} \
|
||||
${MULTILIB_MATCHES_ENDIAN} \
|
||||
${MULTILIB_MATCHES_SYSV}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,11 @@
|
|||
# Target config file for a System V based system (Solaris, Linux, Netbsd) with gas
|
||||
|
||||
# Build libgcc.a with different options. With gas, build pic libraries
|
||||
# as well no floating point
|
||||
MULTILIB_OPTIONS = msoft-float fPIC
|
||||
MULTILIB_DIRNAMES = nof pic
|
||||
MULTILIB_EXCEPTIONS =
|
||||
MULTILIB_MATCHES = ${MULTILIB_MATCHES_FLOAT} \
|
||||
fPIC=mrelocatable-lib \
|
||||
fPIC=mrelocatable \
|
||||
fPIC=fpic
|
||||
|
|
@ -0,0 +1,122 @@
|
|||
/* CYGNUS LOCAL -- waiting for FSF sources to be restored/meissner */
|
||||
/*
|
||||
* special support for trampolines
|
||||
*
|
||||
* Copyright (C) 1996 Free Software Foundation, Inc.
|
||||
* Written By Michael Meissner
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/* Set up trampolines */
|
||||
|
||||
.file "tramp.asm"
|
||||
.section ".text"
|
||||
#include "ppc-asm.h"
|
||||
|
||||
.globl __trampoline_initial
|
||||
.type __trampoline_initial,@object
|
||||
.align 2
|
||||
__trampoline_initial:
|
||||
mflr r0
|
||||
bl 1f
|
||||
.Lfunc = .-__trampoline_initial
|
||||
.long 0 /* will be replaced with function address */
|
||||
.Lchain = .-__trampoline_initial
|
||||
.long 0 /* will be replaced with static chain */
|
||||
1: mflr r11
|
||||
mtlr r0
|
||||
lwz r0,0(r11) /* function address */
|
||||
lwz r11,4(r11) /* static chain */
|
||||
mtctr r0
|
||||
bctr
|
||||
|
||||
__trampoline_size = .-__trampoline_initial
|
||||
.size __trampoline_initial,__trampoline_size
|
||||
|
||||
.section ".got2","aw"
|
||||
.LCTOC1 = .+32768
|
||||
.Ltramp = .-.LCTOC1
|
||||
.long __trampoline_initial-4
|
||||
|
||||
.section ".text"
|
||||
.LCL0:
|
||||
.long .LCTOC1-.LCF0
|
||||
|
||||
/* R3 = stack address to store trampoline */
|
||||
/* R4 = length of trampoline area */
|
||||
/* R5 = function address */
|
||||
/* R6 = static chain */
|
||||
|
||||
FUNC_START(__trampoline_setup)
|
||||
mflr r0 /* save return address */
|
||||
bl .LCF0 /* load up __trampoline_initial into r7 */
|
||||
.LCF0:
|
||||
mflr r11
|
||||
lwz r12,(.LCL0-.LCF0)(r11)
|
||||
add r11,r12,r11
|
||||
lwz r7,.Ltramp(r11) /* trampoline addres -4 */
|
||||
|
||||
li r8,__trampoline_size /* verify that the trampoline is big enough */
|
||||
cmpw cr1,r8,r4
|
||||
srwi r4,r4,2 /* # words to move */
|
||||
addi r9,r3,-4 /* adjust pointer for lwzu */
|
||||
mtctr r4
|
||||
blt cr1,.Labort
|
||||
|
||||
mtlr r0
|
||||
|
||||
/* Copy the instructions to the stack */
|
||||
.Lmove:
|
||||
lwzu r10,4(r7)
|
||||
stwu r10,4(r9)
|
||||
bdnz .Lmove
|
||||
|
||||
/* Store correct function and static chain */
|
||||
stw r5,.Lfunc(r3)
|
||||
stw r6,.Lchain(r3)
|
||||
|
||||
/* Now flush both caches */
|
||||
mtctr r4
|
||||
.Lcache:
|
||||
icbi 0,r3
|
||||
dcbf 0,r3
|
||||
addi r3,r3,4
|
||||
bdnz .Lcache
|
||||
|
||||
/* Finally synchronize things & return */
|
||||
sync
|
||||
isync
|
||||
blr
|
||||
|
||||
.Labort:
|
||||
bl abort
|
||||
FUNC_END(__trampoline_setup)
|
||||
/* END CYGNUS LOCAL -- waiting for FSF sources to be restored/meissner */
|
||||
|
|
@ -472,3 +472,10 @@ dtors_section () \
|
|||
|
||||
#undef HAS_INIT_SECTION
|
||||
#define HAS_INIT_SECTION
|
||||
|
||||
/* Output assembler code for a block containing the constant parts
|
||||
of a trampoline, leaving space for the variable parts.
|
||||
|
||||
The trampoline should set the static chain pointer to value placed
|
||||
into the trampoline and should branch to the specified routine. */
|
||||
#define TRAMPOLINE_TEMPLATE(FILE) rs6000_trampoline_template (FILE)
|
||||
|
|
|
|||
|
|
@ -35,6 +35,48 @@
|
|||
#define r29 29
|
||||
#define r30 30
|
||||
#define r31 31
|
||||
|
||||
#define cr0 0
|
||||
#define cr1 1
|
||||
#define cr2 2
|
||||
#define cr3 3
|
||||
#define cr4 4
|
||||
#define cr5 5
|
||||
#define cr6 6
|
||||
#define cr7 7
|
||||
|
||||
#define f0 0
|
||||
#define f1 1
|
||||
#define f2 2
|
||||
#define f3 3
|
||||
#define f4 4
|
||||
#define f5 5
|
||||
#define f6 6
|
||||
#define f7 7
|
||||
#define f8 8
|
||||
#define f9 9
|
||||
#define f10 10
|
||||
#define f11 11
|
||||
#define f12 12
|
||||
#define f13 13
|
||||
#define f14 14
|
||||
#define f15 15
|
||||
#define f16 16
|
||||
#define f17 17
|
||||
#define f18 18
|
||||
#define f19 19
|
||||
#define f20 20
|
||||
#define f21 21
|
||||
#define f22 22
|
||||
#define f23 23
|
||||
#define f24 24
|
||||
#define f25 25
|
||||
#define f26 26
|
||||
#define f27 27
|
||||
#define f28 28
|
||||
#define f29 29
|
||||
#define f30 30
|
||||
#define f31 31
|
||||
#endif
|
||||
|
||||
/*
|
||||
|
|
|
|||
Loading…
Reference in New Issue