* config/tc-mips.c (append_insn): Use fix_new rather than fix_new_exp
to build the second and third fixups for a composite relocation. (macro_read_relocs): New function. (macro_build): Use it. (s_cpsetup): Pass all three composite relocation codes to macro_build. Simplify fragging code accordingly. (s_gpdword): Use fix_new rather than fix_new_exp for the second part of the composite relocation. Set fx_tcbit in both fixups.
This commit is contained in:
Richard Sandiford
parent
1c877e87e3
commit
6e1304d817
@ -1,3 +1,14 @@
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2004-10-07 Richard Sandiford <rsandifo@redhat.com>
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* config/tc-mips.c (append_insn): Use fix_new rather than fix_new_exp
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to build the second and third fixups for a composite relocation.
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(macro_read_relocs): New function.
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(macro_build): Use it.
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(s_cpsetup): Pass all three composite relocation codes to macro_build.
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Simplify fragging code accordingly.
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(s_gpdword): Use fix_new rather than fix_new_exp for the second part
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of the composite relocation. Set fx_tcbit in both fixups.
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2004-10-07 Richard Sandiford <rsandifo@redhat.com>
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* config/tc-mips.c (append_insn): Set fx_tcbit for composite relocs.
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@ -2224,13 +2224,9 @@ append_insn (struct mips_cl_insn *ip, expressionS *address_expr,
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for (i = 1; i < 3; i++)
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if (reloc_type[i] != BFD_RELOC_UNUSED)
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{
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address_expr->X_op = O_absent;
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address_expr->X_add_symbol = 0;
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address_expr->X_add_number = 0;
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fixp[i] = fix_new_exp (frag_now, fixp[0]->fx_where,
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fixp[0]->fx_size, address_expr,
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FALSE, reloc_type[i]);
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fixp[i] = fix_new (frag_now, fixp[0]->fx_where,
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fixp[0]->fx_size, NULL, 0,
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FALSE, reloc_type[i]);
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/* Use fx_tcbit to mark compound relocs. */
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fixp[0]->fx_tcbit = 1;
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@ -2975,6 +2971,24 @@ macro_end (void)
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}
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}
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/* Read a macro's relocation codes from *ARGS and store them in *R.
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The first argument in *ARGS will be either the code for a single
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relocation or -1 followed by the three codes that make up a
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composite relocation. */
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static void
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macro_read_relocs (va_list *args, bfd_reloc_code_real_type *r)
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{
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int i, next;
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next = va_arg (*args, int);
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if (next >= 0)
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r[0] = (bfd_reloc_code_real_type) next;
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else
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for (i = 0; i < 3; i++)
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r[i] = (bfd_reloc_code_real_type) va_arg (*args, int);
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}
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/* Build an instruction created by a macro expansion. This is passed
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a pointer to the count of instructions created so far, an
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expression, the name of the instruction to build, an operand format
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@ -3138,7 +3152,7 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
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case 'i':
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case 'j':
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case 'o':
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*r = (bfd_reloc_code_real_type) va_arg (args, int);
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macro_read_relocs (&args, r);
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assert (*r == BFD_RELOC_GPREL16
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|| *r == BFD_RELOC_MIPS_LITERAL
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|| *r == BFD_RELOC_MIPS_HIGHER
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@ -3154,7 +3168,7 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
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continue;
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case 'u':
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*r = (bfd_reloc_code_real_type) va_arg (args, int);
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macro_read_relocs (&args, r);
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assert (ep != NULL
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&& (ep->X_op == O_constant
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|| (ep->X_op == O_symbol
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@ -11837,7 +11851,6 @@ s_cpsetup (int ignore ATTRIBUTE_UNUSED)
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expressionS ex_off;
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expressionS ex_sym;
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int reg1;
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char *f;
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/* If we are not generating SVR4 PIC code, .cpsetup is ignored.
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We also need NewABI support. */
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@ -11893,23 +11906,12 @@ s_cpsetup (int ignore ATTRIBUTE_UNUSED)
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macro_build (NULL, "daddu", "d,v,t", mips_cpreturn_register,
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mips_gp_register, 0);
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/* Ensure there's room for the next two instructions, so that `f'
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doesn't end up with an address in the wrong frag. */
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frag_grow (8);
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f = frag_more (0);
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macro_build (&ex_sym, "lui", "t,u", mips_gp_register, BFD_RELOC_GPREL16);
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fix_new (frag_now, f - frag_now->fr_literal,
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8, NULL, 0, 0, BFD_RELOC_MIPS_SUB);
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fix_new (frag_now, f - frag_now->fr_literal,
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4, NULL, 0, 0, BFD_RELOC_HI16_S);
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macro_build (&ex_sym, "lui", "t,u", mips_gp_register,
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-1, BFD_RELOC_GPREL16, BFD_RELOC_MIPS_SUB, BFD_RELOC_HI16_S);
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f = frag_more (0);
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macro_build (&ex_sym, "addiu", "t,r,j", mips_gp_register,
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mips_gp_register, BFD_RELOC_GPREL16);
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fix_new (frag_now, f - frag_now->fr_literal,
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8, NULL, 0, 0, BFD_RELOC_MIPS_SUB);
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fix_new (frag_now, f - frag_now->fr_literal,
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4, NULL, 0, 0, BFD_RELOC_LO16);
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mips_gp_register, -1, BFD_RELOC_GPREL16,
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BFD_RELOC_MIPS_SUB, BFD_RELOC_LO16);
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macro_build (NULL, ADDRESS_ADD_INSN, "d,v,t", mips_gp_register,
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mips_gp_register, reg1);
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@ -12093,14 +12095,11 @@ s_gpdword (int ignore ATTRIBUTE_UNUSED)
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p = frag_more (8);
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md_number_to_chars (p, 0, 8);
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fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &ex, FALSE,
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BFD_RELOC_GPREL32);
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BFD_RELOC_GPREL32)->fx_tcbit = 1;
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/* GPREL32 composed with 64 gives a 64-bit GP offset. */
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ex.X_op = O_absent;
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ex.X_add_symbol = 0;
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ex.X_add_number = 0;
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fix_new_exp (frag_now, p - frag_now->fr_literal, 8, &ex, FALSE,
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BFD_RELOC_64);
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fix_new (frag_now, p - frag_now->fr_literal, 8, NULL, 0,
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FALSE, BFD_RELOC_64)->fx_tcbit = 1;
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demand_empty_rest_of_line ();
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}
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@ -1,3 +1,8 @@
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2004-10-07 Richard Sandiford <rsandifo@redhat.com>
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* gas/mips/elf-rel{23,24}.[sd]: New tests.
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* gas/mips/mips.exp: New test.
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2004-10-07 Richard Sandiford <rsandifo@redhat.com>
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* gas/mips/elf-rel22.[sd]: New test.
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19
gas/testsuite/gas/mips/elf-rel23.d
Normal file
19
gas/testsuite/gas/mips/elf-rel23.d
Normal file
@ -0,0 +1,19 @@
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#as: -march=mips3 -mabi=64
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#objdump: -dr -Mgpr-names=numeric
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#name: MIPS ELF reloc 23
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.*: * file format elf64-tradbigmips
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Disassembly of section \.text:
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0+00 <.*>:
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.*: 0380282d move \$5,\$28
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.*: 3c1c0000 lui \$28,0x0
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.*: R_MIPS_GPREL16 foo
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.*: R_MIPS_SUB \*ABS\*
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.*: R_MIPS_HI16 \*ABS\*
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.*: 279c0000 addiu \$28,\$28,0
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.*: R_MIPS_GPREL16 foo
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.*: R_MIPS_SUB \*ABS\*
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.*: R_MIPS_LO16 \*ABS\*
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.*: 0384e02d daddu \$28,\$28,\$4
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6
gas/testsuite/gas/mips/elf-rel23.s
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6
gas/testsuite/gas/mips/elf-rel23.s
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@ -0,0 +1,6 @@
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.abicalls
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.globl foo
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.ent foo
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foo:
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.cpsetup $4,$5,foo
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.end foo
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12
gas/testsuite/gas/mips/elf-rel24.d
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12
gas/testsuite/gas/mips/elf-rel24.d
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@ -0,0 +1,12 @@
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#as: -march=mips3 -mabi=64
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#readelf: --relocs
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#name: MIPS ELF reloc 24
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Relocation section '\.rela\.text' .*:
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.*
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.* R_MIPS_GPREL32 * 0+00 foo \+ 0
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* Type2: R_MIPS_64 *
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* Type3: R_MIPS_NONE *
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.* R_MIPS_GPREL32 * 0+00 \.text \+ 10
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* Type2: R_MIPS_64 *
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* Type3: R_MIPS_NONE *
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4
gas/testsuite/gas/mips/elf-rel24.s
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4
gas/testsuite/gas/mips/elf-rel24.s
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@ -0,0 +1,4 @@
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.abicalls
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.gpdword foo
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.gpdword bar
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bar:
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@ -665,6 +665,8 @@ if { [istarget mips*-*-*] } then {
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if $has_newabi {
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run_dump_test "elf-rel21"
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run_dump_test "elf-rel22"
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run_dump_test "elf-rel23"
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run_dump_test "elf-rel24"
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}
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if { !$no_mips16 } {
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