* elfxx-mips.c (mips_use_local_got_p): New function.
(mips_elf_count_got_symbols, mips_elf_calculate_relocation): Use it.
(_bfd_mips_elf_check_relocs): Set pointer_equality_needed for
GOT and absolute references.
ld/testsuite/
* ld-mips-elf/pic-and-nonpic-6-n32.ad,
ld-mips-elf/pic-and-nonpic-6-n32.dd,
ld-mips-elf/pic-and-nonpic-6-n32.gd,
ld-mips-elf/pic-and-nonpic-6-n32.nd,
ld-mips-elf/pic-and-nonpic-6-n32.rd,
ld-mips-elf/pic-and-nonpic-6-n64.ad,
ld-mips-elf/pic-and-nonpic-6-n64.dd,
ld-mips-elf/pic-and-nonpic-6-n64.gd,
ld-mips-elf/pic-and-nonpic-6-n64.nd,
ld-mips-elf/pic-and-nonpic-6-n64.rd,
ld-mips-elf/pic-and-nonpic-6-o32.ad,
ld-mips-elf/pic-and-nonpic-6-o32.dd,
ld-mips-elf/pic-and-nonpic-6-o32.gd,
ld-mips-elf/pic-and-nonpic-6-o32.nd,
ld-mips-elf/pic-and-nonpic-6-o32.rd: Fix symbol value of extf4.
No longer expect extf3, extf4 and extd2 to be in the global GOT.
+2013-10-13 Richard Sandiford <rdsandiford@googlemail.com>
+
+ * elfxx-mips.c (mips_use_local_got_p): New function.
+ (mips_elf_count_got_symbols, mips_elf_calculate_relocation): Use it.
+ (_bfd_mips_elf_check_relocs): Set pointer_equality_needed for
+ GOT and absolute references.
+
2013-10-09 Roland McGrath <mcgrathr@google.com>
* elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Cast switch
return TRUE;
}
+/* Return true if a GOT entry for H should live in the local rather than
+ global GOT area. */
+
+static bfd_boolean
+mips_use_local_got_p (struct bfd_link_info *info,
+ struct mips_elf_link_hash_entry *h)
+{
+ /* Symbols that aren't in the dynamic symbol table must live in the
+ local GOT. This includes symbols that are completely undefined
+ and which therefore don't bind locally. We'll report undefined
+ symbols later if appropriate. */
+ if (h->root.dynindx == -1)
+ return TRUE;
+
+ /* Symbols that bind locally can (and in the case of forced-local
+ symbols, must) live in the local GOT. */
+ if (h->got_only_for_calls
+ ? SYMBOL_CALLS_LOCAL (info, &h->root)
+ : SYMBOL_REFERENCES_LOCAL (info, &h->root))
+ return TRUE;
+
+ /* If this is an executable that must provide a definition of the symbol,
+ either though PLTs or copy relocations, then that address should go in
+ the local rather than global GOT. */
+ if (info->executable && h->has_static_relocs)
+ return TRUE;
+
+ return FALSE;
+}
+
/* A mips_elf_link_hash_traverse callback for which DATA points to the
link_info structure. Decide whether the hash entry needs an entry in
the global part of the primary GOT, setting global_got_area accordingly.
if (h->global_got_area != GGA_NONE)
{
/* Make a final decision about whether the symbol belongs in the
- local or global GOT. Symbols that bind locally can (and in the
- case of forced-local symbols, must) live in the local GOT.
- Those that are aren't in the dynamic symbol table must also
- live in the local GOT.
-
- Note that the former condition does not always imply the
- latter: symbols do not bind locally if they are completely
- undefined. We'll report undefined symbols later if appropriate. */
- if (h->root.dynindx == -1
- || (h->got_only_for_calls
- ? SYMBOL_CALLS_LOCAL (info, &h->root)
- : SYMBOL_REFERENCES_LOCAL (info, &h->root)))
+ local or global GOT. */
+ if (mips_use_local_got_p (info, h))
/* The symbol belongs in the local GOT. We no longer need this
entry if it was only used for relocations; those relocations
will be against the null or section symbol instead of H. */
&& (target_is_16_bit_code_p
|| target_is_micromips_code_p))));
- local_p = (h == NULL
- || (h->got_only_for_calls
- ? SYMBOL_CALLS_LOCAL (info, &h->root)
- : SYMBOL_REFERENCES_LOCAL (info, &h->root)));
+ local_p = (h == NULL || mips_use_local_got_p (info, h));
gp0 = _bfd_get_gp_value (input_bfd);
gp = _bfd_get_gp_value (abfd);
unsigned int r_type;
struct elf_link_hash_entry *h;
bfd_boolean can_make_dynamic_p;
+ bfd_boolean call_reloc_p;
+ bfd_boolean constrain_symbol_p;
r_symndx = ELF_R_SYM (abfd, rel->r_info);
r_type = ELF_R_TYPE (abfd, rel->r_info);
/* Set CAN_MAKE_DYNAMIC_P to true if we can convert this
relocation into a dynamic one. */
can_make_dynamic_p = FALSE;
+
+ /* Set CALL_RELOC_P to true if the relocation is for a call,
+ and if pointer equality therefore doesn't matter. */
+ call_reloc_p = FALSE;
+
+ /* Set CONSTRAIN_SYMBOL_P if we need to take the relocation
+ into account when deciding how to define the symbol.
+ Relocations in nonallocatable sections such as .pdr and
+ .debug* should have no effect. */
+ constrain_symbol_p = ((sec->flags & SEC_ALLOC) != 0);
+
switch (r_type)
{
- case R_MIPS_GOT16:
case R_MIPS_CALL16:
case R_MIPS_CALL_HI16:
case R_MIPS_CALL_LO16:
+ case R_MIPS16_CALL16:
+ case R_MICROMIPS_CALL16:
+ case R_MICROMIPS_CALL_HI16:
+ case R_MICROMIPS_CALL_LO16:
+ call_reloc_p = TRUE;
+ /* Fall through. */
+
+ case R_MIPS_GOT16:
case R_MIPS_GOT_HI16:
case R_MIPS_GOT_LO16:
case R_MIPS_GOT_PAGE:
case R_MIPS_TLS_GD:
case R_MIPS_TLS_LDM:
case R_MIPS16_GOT16:
- case R_MIPS16_CALL16:
case R_MIPS16_TLS_GOTTPREL:
case R_MIPS16_TLS_GD:
case R_MIPS16_TLS_LDM:
case R_MICROMIPS_GOT16:
- case R_MICROMIPS_CALL16:
- case R_MICROMIPS_CALL_HI16:
- case R_MICROMIPS_CALL_LO16:
case R_MICROMIPS_GOT_HI16:
case R_MICROMIPS_GOT_LO16:
case R_MICROMIPS_GOT_PAGE:
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
+ can_make_dynamic_p = TRUE;
break;
- /* This is just a hint; it can safely be ignored. Don't set
- has_static_relocs for the corresponding symbol. */
+ case R_MIPS_NONE:
case R_MIPS_JALR:
case R_MICROMIPS_JALR:
+ /* These relocations have empty fields and are purely there to
+ provide link information. The symbol value doesn't matter. */
+ constrain_symbol_p = FALSE;
+ break;
+
+ case R_MIPS_GPREL16:
+ case R_MIPS_GPREL32:
+ case R_MIPS16_GPREL:
+ case R_MICROMIPS_GPREL16:
+ /* GP-relative relocations always resolve to a definition in a
+ regular input file, ignoring the one-definition rule. This is
+ important for the GP setup sequence in NewABI code, which
+ always resolves to a local function even if other relocations
+ against the symbol wouldn't. */
+ constrain_symbol_p = FALSE;
break;
case R_MIPS_32:
can_make_dynamic_p = TRUE;
if (dynobj == NULL)
elf_hash_table (info)->dynobj = dynobj = abfd;
- break;
}
- /* For sections that are not SEC_ALLOC a copy reloc would be
- output if possible (implying questionable semantics for
- read-only data objects) or otherwise the final link would
- fail as ld.so will not process them and could not therefore
- handle any outstanding dynamic relocations.
-
- For such sections that are also SEC_DEBUGGING, we can avoid
- these problems by simply ignoring any relocs as these
- sections have a predefined use and we know it is safe to do
- so.
-
- This is needed in cases such as a global symbol definition
- in a shared library causing a common symbol from an object
- file to be converted to an undefined reference. If that
- happens, then all the relocations against this symbol from
- SEC_DEBUGGING sections in the object file will resolve to
- nil. */
- if ((sec->flags & SEC_DEBUGGING) != 0)
- break;
- /* Fall through. */
-
- default:
- /* Most static relocations require pointer equality, except
- for branches. */
- if (h)
- h->pointer_equality_needed = TRUE;
- /* Fall through. */
+ break;
case R_MIPS_26:
case R_MIPS_PC16:
case R_MICROMIPS_PC10_S1:
case R_MICROMIPS_PC16_S1:
case R_MICROMIPS_PC23_S2:
- if (h)
- ((struct mips_elf_link_hash_entry *) h)->has_static_relocs = TRUE;
+ call_reloc_p = TRUE;
break;
}
if (h)
{
+ if (constrain_symbol_p)
+ {
+ if (!can_make_dynamic_p)
+ ((struct mips_elf_link_hash_entry *) h)->has_static_relocs = 1;
+
+ if (!call_reloc_p)
+ h->pointer_equality_needed = 1;
+
+ /* We must not create a stub for a symbol that has
+ relocations related to taking the function's address.
+ This doesn't apply to VxWorks, where CALL relocs refer
+ to a .got.plt entry instead of a normal .got entry. */
+ if (!htab->is_vxworks && (!can_make_dynamic_p || !call_reloc_p))
+ ((struct mips_elf_link_hash_entry *) h)->no_fn_stub = TRUE;
+ }
+
/* Relocations against the special VxWorks __GOTT_BASE__ and
__GOTT_INDEX__ symbols must be left to the loader. Allocate
room for them in .rela.dyn. */
h->plt.plist->need_comp = TRUE;
}
- /* We must not create a stub for a symbol that has relocations
- related to taking the function's address. This doesn't apply to
- VxWorks, where CALL relocs refer to a .got.plt entry instead of
- a normal .got entry. */
- if (!htab->is_vxworks && h != NULL)
- switch (r_type)
- {
- default:
- ((struct mips_elf_link_hash_entry *) h)->no_fn_stub = TRUE;
- break;
- case R_MIPS16_CALL16:
- case R_MIPS_CALL16:
- case R_MIPS_CALL_HI16:
- case R_MIPS_CALL_LO16:
- case R_MIPS_JALR:
- case R_MICROMIPS_CALL16:
- case R_MICROMIPS_CALL_HI16:
- case R_MICROMIPS_CALL_LO16:
- case R_MICROMIPS_JALR:
- break;
- }
-
/* See if this reloc would need to refer to a MIPS16 hard-float stub,
if there is one. We only need to handle global symbols here;
we decide whether to keep or delete stubs for local symbols
+2013-10-13 Richard Sandiford <rdsandiford@googlemail.com>
+
+ * ld-mips-elf/pic-and-nonpic-6-n32.ad,
+ ld-mips-elf/pic-and-nonpic-6-n32.dd,
+ ld-mips-elf/pic-and-nonpic-6-n32.gd,
+ ld-mips-elf/pic-and-nonpic-6-n32.nd,
+ ld-mips-elf/pic-and-nonpic-6-n32.rd,
+ ld-mips-elf/pic-and-nonpic-6-n64.ad,
+ ld-mips-elf/pic-and-nonpic-6-n64.dd,
+ ld-mips-elf/pic-and-nonpic-6-n64.gd,
+ ld-mips-elf/pic-and-nonpic-6-n64.nd,
+ ld-mips-elf/pic-and-nonpic-6-n64.rd,
+ ld-mips-elf/pic-and-nonpic-6-o32.ad,
+ ld-mips-elf/pic-and-nonpic-6-o32.dd,
+ ld-mips-elf/pic-and-nonpic-6-o32.gd,
+ ld-mips-elf/pic-and-nonpic-6-o32.nd,
+ ld-mips-elf/pic-and-nonpic-6-o32.rd: Fix symbol value of extf4.
+ No longer expect extf3, extf4 and extd2 to be in the global GOT.
+
2013-10-03 Will Newton <will.newton@linaro.org>
* ld-ifunc/ifunc.exp: Enable ifunc tests for AArch64.
0x70000001 \(MIPS_RLD_VERSION\) * 1
0x70000005 \(MIPS_FLAGS\) * NOTPOT
0x70000006 \(MIPS_BASE_ADDRESS\) * 0x40000
- 0x7000000a \(MIPS_LOCAL_GOTNO\) * 2
+ 0x7000000a \(MIPS_LOCAL_GOTNO\) * 5
0x70000011 \(MIPS_SYMTABNO\) * 12
0x70000012 \(MIPS_UNREFEXTNO\) * .*
- 0x70000013 \(MIPS_GOTSYM\) * 0x5
+ 0x70000013 \(MIPS_GOTSYM\) * 0x8
0x00000014 \(PLTREL\) * REL
0x00000017 \(JMPREL\) * 0x43028
0x00000002 \(PLTRELSZ\) * 24 \(bytes\)
#
# -32752: lazy resolution function
# -32748: reserved for module pointer
-# -32744: extf2's GOT entry (undefined 0)
-# -32740: extf3's GOT entry (PLT entry)
-# -32736: extd2's GOT entry (copy reloc)
-# -32732: extf1's GOT entry (.MIPS.stubs entry)
-# -32728: extd1's GOT entry (undefined 0)
-# -32724: extf4's GOT entry (PLT entry)
-# -32620: extd4's GOT entry (undefined 0, reloc only)
+# -32744: extd2's local GOT entry (copy reloc)
+# -32740: extf3's local GOT entry (PLT entry)
+# -32736: extf4's local GOT entry (PLT entry)
+# -32732: extf2's global GOT entry (undefined 0)
+# -32728: extf1's global GOT entry (.MIPS.stubs entry)
+# -32724: extd1's global GOT entry (undefined 0)
+# -32720: extd4's global GOT entry (undefined 0, reloc only)
.*
44020: 3c1c0006 lui gp,0x6
44024: 0399e021 addu gp,gp,t9
44028: 279c3fd0 addiu gp,gp,16336
- 4402c: 8f998024 lw t9,-32732\(gp\)
- 44030: 8f848018 lw a0,-32744\(gp\)
- 44034: 8f858028 lw a1,-32728\(gp\)
+ 4402c: 8f998028 lw t9,-32728\(gp\)
+ 44030: 8f848024 lw a0,-32732\(gp\)
+ 44034: 8f85802c lw a1,-32724\(gp\)
44038: 0320f809 jalr t9
- 4403c: 8f868020 lw a2,-32736\(gp\)
+ 4403c: 8f868018 lw a2,-32744\(gp\)
44040: 8f99801c lw t9,-32740\(gp\)
44044: 03200008 jr t9
- 44048: 8f84802c lw a0,-32724\(gp\)
+ 44048: 8f848020 lw a0,-32736\(gp\)
0004404c <f3>:
4404c: 03e00008 jr ra
440a0: 8f998010 lw t9,-32752\(gp\)
440a4: 03e07821 move t3,ra
440a8: 0320f809 jalr t9
- 440ac: 24180008 li t8,8
+ 440ac: 24180009 li t8,9
\.\.\.
000a0000 -32752\(gp\) 00000000 Lazy resolver
000a0004 -32748\(gp\) 80000000 Module pointer \(GNU extension\)
+ Local entries:
+ Address Access Initial
+ 000a0008 -32744\(gp\) 000a2000
+ 000a000c -32740\(gp\) 00043080
+ 000a0010 -32736\(gp\) 00043060
+
Global entries:
Address Access Initial Sym\.Val\. Type Ndx Name
- 000a0008 -32744\(gp\) 00000000 00000000 FUNC UND extf2
- 000a000c -32740\(gp\) 00000000 00000000 FUNC UND extf3
- 000a0010 -32736\(gp\) 000a2000 000a2000 OBJECT 16 extd2
- 000a0014 -32732\(gp\) 000440a0 000440a0 FUNC UND extf1
- 000a0018 -32728\(gp\) 00000000 00000000 OBJECT UND extd1
- 000a001c -32724\(gp\) 00000000 00000000 FUNC UND extf4
+ 000a0014 -32732\(gp\) 00000000 00000000 FUNC UND extf2
+ 000a0018 -32728\(gp\) 000440a0 000440a0 FUNC UND extf1
+ 000a001c -32724\(gp\) 00000000 00000000 OBJECT UND extd1
000a0020 -32720\(gp\) 00000000 00000000 OBJECT UND extd4
Entries:
Address Initial Sym.Val. Type Ndx Name
- 00081008 00043040 00000000 FUNC UND extf4
+ 00081008 00043040 00043060 FUNC UND extf4
0008100c 00043040 00000000 FUNC UND extf5
00081010 00043040 00000000 FUNC UND extf3
Symbol table '\.dynsym' contains .*:
+#
+# extf4 is referenced by a JAL and .word. The former requires a PLT entry
+# and the latter requires pointer equality, which means a symbol value is
+# needed.
#...
-.*: 00000000 +0 +FUNC +GLOBAL +DEFAULT +UND +extf5
+.*: 0+43060 +0 +FUNC +GLOBAL +DEFAULT \[MIPS PLT\] +UND +extf4
+#
+# extf5 is called but does not have its address taken. It needs a PLT
+# but no symbol value should be set.
+#...
+.*: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf5
+#
+# extd2 is referenced by %got, .word and %hi/%lo. The last pair forces
+# a copy reloc.
+#
+.*: 0+a2000 +24 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd2
+#
+# extf3 is referenced by a JAL and a GOT CALL reloc. The JAL forces a PLT
+# that the GOT CALL reloc will also use, but pointer equality isn't needed
+# and so no symbol value should be set.
+#
+.*: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf3
+#
+# extd3 is referenced by .word and %hi/%lo. The latter pair forces
+# a copy reloc.
+#...
+.*: 0+a2018 +28 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd3
+#
# The index on the next line should correspond to MIPS_GOTSYM,
# and the remaining symbols should have the same order as the
# GOT layout given in the *.dd dump.
-#...
- *5: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf2
- *6: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf3
- *7: 0+a2000 +24 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd2
- *8: 0+440a0 +0 +FUNC +GLOBAL +DEFAULT +UND +extf1
- *9: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd1
- *10: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf4
+#
+ *8: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf2
+ *9: 0+440a0 +0 +FUNC +GLOBAL +DEFAULT +UND +extf1
+ *10: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd1
*11: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd4
#pass
Relocation section '\.rel\.dyn' at offset .* contains .*:
* Offset * Info * Type * Sym\.Value * Sym\. Name
00000000 * 00000000 * R_MIPS_NONE *
-000a2018 * [^ ]*7e * R_MIPS_COPY * 000a2018 * extd3
000a2000 * [^ ]*7e * R_MIPS_COPY * 000a2000 * extd2
+000a2018 * [^ ]*7e * R_MIPS_COPY * 000a2018 * extd3
000a1000 * [^ ]*03 * R_MIPS_REL32 * 00000000 * extd1
000a1014 * [^ ]*03 * R_MIPS_REL32 * 00000000 * extd4
Relocation section '\.rel\.plt' at offset .* contains .*:
* Offset * Info * Type * Sym\.Value * Sym\. Name
-00081008 * [^ ]*7f * R_MIPS_JUMP_SLOT * 00000000 * extf4
+00081008 * [^ ]*7f * R_MIPS_JUMP_SLOT * 00043060 * extf4
0008100c * [^ ]*7f * R_MIPS_JUMP_SLOT * 00000000 * extf5
00081010 * [^ ]*7f * R_MIPS_JUMP_SLOT * 00000000 * extf3
0x0+70000001 \(MIPS_RLD_VERSION\) * 1
0x0+70000005 \(MIPS_FLAGS\) * NOTPOT
0x0+70000006 \(MIPS_BASE_ADDRESS\) * 0x40000
- 0x0+7000000a \(MIPS_LOCAL_GOTNO\) * 2
+ 0x0+7000000a \(MIPS_LOCAL_GOTNO\) * 5
0x0+70000011 \(MIPS_SYMTABNO\) * 12
0x0+70000012 \(MIPS_UNREFEXTNO\) * .*
- 0x0+70000013 \(MIPS_GOTSYM\) * 0x5
+ 0x0+70000013 \(MIPS_GOTSYM\) * 0x8
0x0+00000014 \(PLTREL\) * REL
0x0+00000017 \(JMPREL\) * 0x43050
0x0+00000002 \(PLTRELSZ\) * 48 \(bytes\)
# GOT layout:
#
# -32752: lazy resolution function
-# -32744: reserved for module pointer
-# -32736: extf2's GOT entry (undefined 0)
-# -32728: extf3's GOT entry (PLT entry)
-# -32720: extd2's GOT entry (copy reloc)
-# -32712: extf1's GOT entry (.MIPS.stubs entry)
-# -32704: extd1's GOT entry (undefined 0)
-# -32696: extf4's GOT entry (PLT entry)
-# -32688: extd4's GOT entry (undefined 0, reloc only)
+# -32748: reserved for module pointer
+# -32744: extd2's local GOT entry (copy reloc)
+# -32740: extf3's local GOT entry (PLT entry)
+# -32736: extf4's local GOT entry (PLT entry)
+# -32732: extf2's global GOT entry (undefined 0)
+# -32728: extf1's global GOT entry (.MIPS.stubs entry)
+# -32724: extd1's global GOT entry (undefined 0)
+# -32720: extd4's global GOT entry (undefined 0, reloc only)
.*
44020: 3c1c0006 lui gp,0x6
44024: 0399e021 addu gp,gp,t9
44028: 279c3fd0 addiu gp,gp,16336
- 4402c: df998038 ld t9,-32712\(gp\)
- 44030: df848020 ld a0,-32736\(gp\)
- 44034: df858040 ld a1,-32704\(gp\)
+ 4402c: df998040 ld t9,-32704\(gp\)
+ 44030: df848038 ld a0,-32712\(gp\)
+ 44034: df858048 ld a1,-32696\(gp\)
44038: 0320f809 jalr t9
- 4403c: df868030 ld a2,-32720\(gp\)
+ 4403c: df868020 ld a2,-32736\(gp\)
44040: df998028 ld t9,-32728\(gp\)
44044: 03200008 jr t9
- 44048: df848048 ld a0,-32696\(gp\)
+ 44048: df848030 ld a0,-32720\(gp\)
0+4404c <f3>:
4404c: 03e00008 jr ra
440a0: df998010 ld t9,-32752\(gp\)
440a4: 03e0782d move t3,ra
440a8: 0320f809 jalr t9
- 440ac: 64180008 daddiu t8,zero,8
+ 440ac: 64180009 daddiu t8,zero,9
\.\.\.
Primary GOT:
- Canonical gp value: 00000000000a7ff0
+ Canonical gp value: 0+0a7ff0
Reserved entries:
- Address Access Initial Purpose
- 00000000000a0000 -32752\(gp\) 0000000000000000 Lazy resolver
- 00000000000a0008 -32744\(gp\) 8000000000000000 Module pointer \(GNU extension\)
+ * Address * Access * Initial Purpose
+ 0+0a0000 -32752\(gp\) 0+ Lazy resolver
+ 0+0a0008 -32744\(gp\) 8000000000000000 Module pointer \(GNU extension\)
+
+ Local entries:
+ * Address * Access * Initial
+ 0+0a0010 -32736\(gp\) 0+0a2000
+ 0+0a0018 -32728\(gp\) 0+0430c0
+ 0+0a0020 -32720\(gp\) 0+0430a0
Global entries:
- Address Access Initial Sym\.Val\. Type Ndx Name
- 00000000000a0010 -32736\(gp\) 0000000000000000 0000000000000000 FUNC UND extf2
- 00000000000a0018 -32728\(gp\) 0000000000000000 0000000000000000 FUNC UND extf3
- 00000000000a0020 -32720\(gp\) 00000000000a2000 00000000000a2000 OBJECT 16 extd2
- 00000000000a0028 -32712\(gp\) 00000000000440a0 00000000000440a0 FUNC UND extf1
- 00000000000a0030 -32704\(gp\) 0000000000000000 0000000000000000 OBJECT UND extd1
- 00000000000a0038 -32696\(gp\) 0000000000000000 0000000000000000 FUNC UND extf4
- 00000000000a0040 -32688\(gp\) 0000000000000000 0000000000000000 OBJECT UND extd4
+ * Address * Access * Initial * Sym\.Val\. * Type * Ndx Name
+ 0+0a0028 -32712\(gp\) 0+000000 0+000000 FUNC UND extf2
+ 0+0a0030 -32704\(gp\) 0+0440a0 0+0440a0 FUNC UND extf1
+ 0+0a0038 -32696\(gp\) 0+000000 0+000000 OBJECT UND extd1
+ 0+0a0040 -32688\(gp\) 0+000000 0+000000 OBJECT UND extd4
PLT GOT:
Reserved entries:
- Address Initial Purpose
- 0000000000081000 0000000000000000 PLT lazy resolver
- 0000000000081008 0000000000000000 Module pointer
+ * Address * Initial * Purpose
+ 0+081000 0+ PLT lazy resolver
+ 0+081008 0+ Module pointer
Entries:
- Address Initial Sym.Val. Type Ndx Name
- 0000000000081010 0000000000043080 0000000000000000 FUNC UND extf4
- 0000000000081018 0000000000043080 0000000000000000 FUNC UND extf5
- 0000000000081020 0000000000043080 0000000000000000 FUNC UND extf3
+ * Address * Initial * Sym.Val. * Type * Ndx Name
+ 0+081010 0+043080 0+0430a0 FUNC UND extf4
+ 0+081018 0+043080 0+000000 FUNC UND extf5
+ 0+081020 0+043080 0+000000 FUNC UND extf3
Symbol table '\.dynsym' contains .*:
+#
+# extf4 is referenced by a JAL and .word. The former requires a PLT entry
+# and the latter requires pointer equality, which means a symbol value is
+# needed.
+#...
+.*: 0+430a0 +0 +FUNC +GLOBAL +DEFAULT \[MIPS PLT\] +UND +extf4
+#
+# extf5 is called but does not have its address taken. It needs a PLT
+# but no symbol value should be set.
#...
.*: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf5
+#
+# extd2 is referenced by %got, .word and %hi/%lo. The last pair forces
+# a copy reloc.
+#
+.*: 0+a2000 +24 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd2
+#
+# extf3 is referenced by a JAL and a GOT CALL reloc. The JAL forces a PLT
+# that the GOT CALL reloc will also use, but pointer equality isn't needed
+# and so no symbol value should be set.
+#
+.*: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf3
+#
+# extd3 is referenced by .word and %hi/%lo. The latter pair forces
+# a copy reloc.
+#...
+.*: 0+a2018 +28 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd3
+#
# The index on the next line should correspond to MIPS_GOTSYM,
# and the remaining symbols should have the same order as the
# GOT layout given in the *.dd dump.
-#...
- *5: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf2
- *6: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf3
- *7: 0+a2000 +24 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd2
- *8: 0+440a0 +0 +FUNC +GLOBAL +DEFAULT +UND +extf1
- *9: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd1
- *10: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf4
+#
+ *8: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf2
+ *9: 0+440a0 +0 +FUNC +GLOBAL +DEFAULT +UND +extf1
+ *10: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd1
*11: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd4
#pass
0+00000 * 0+ * R_MIPS_NONE *
*Type2: R_MIPS_NONE *
*Type3: R_MIPS_NONE *
-0+a2018 * [^ ]*7e * R_MIPS_COPY * 0+a2018 * extd3
+0+a2000 * [^ ]*7e * R_MIPS_COPY * 0+a2000 * extd2
*Type2: R_MIPS_NONE *
*Type3: R_MIPS_NONE *
-0+a2000 * [^ ]*7e * R_MIPS_COPY * 0+a2000 * extd2
+0+a2018 * [^ ]*7e * R_MIPS_COPY * 0+a2018 * extd3
*Type2: R_MIPS_NONE *
*Type3: R_MIPS_NONE *
0+a1000 * [^ ]*03 * R_MIPS_REL32 * 0+00000 * extd1
Relocation section '\.rel\.plt' at offset .* contains .*:
* Offset * Info * Type * Sym\. Value * Sym\. Name
-0+81010 * [^ ]*7f * R_MIPS_JUMP_SLOT * 0+00000 * extf4
+0+81010 * [^ ]*7f * R_MIPS_JUMP_SLOT * 0+430a0 * extf4
*Type2: R_MIPS_NONE *
*Type3: R_MIPS_NONE *
0+81018 * [^ ]*7f * R_MIPS_JUMP_SLOT * 0+00000 * extf5
0x70000001 \(MIPS_RLD_VERSION\) * 1
0x70000005 \(MIPS_FLAGS\) * NOTPOT
0x70000006 \(MIPS_BASE_ADDRESS\) * 0x40000
- 0x7000000a \(MIPS_LOCAL_GOTNO\) * 2
+ 0x7000000a \(MIPS_LOCAL_GOTNO\) * 5
0x70000011 \(MIPS_SYMTABNO\) * 12
0x70000012 \(MIPS_UNREFEXTNO\) * .*
- 0x70000013 \(MIPS_GOTSYM\) * 0x5
+ 0x70000013 \(MIPS_GOTSYM\) * 0x8
0x00000014 \(PLTREL\) * REL
0x00000017 \(JMPREL\) * 0x43028
0x00000002 \(PLTRELSZ\) * 24 \(bytes\)
#
# -32752: lazy resolution function
# -32748: reserved for module pointer
-# -32744: extf2's GOT entry (undefined 0)
-# -32740: extf3's GOT entry (PLT entry)
-# -32736: extd2's GOT entry (copy reloc)
-# -32732: extf1's GOT entry (.MIPS.stubs entry)
-# -32728: extd1's GOT entry (undefined 0)
-# -32724: extf4's GOT entry (PLT entry)
-# -32620: extd4's GOT entry (undefined 0, reloc only)
+# -32744: extd2's local GOT entry (copy reloc)
+# -32740: extf3's local GOT entry (PLT entry)
+# -32736: extf4's local GOT entry (PLT entry)
+# -32732: extf2's global GOT entry (undefined 0)
+# -32728: extf1's global GOT entry (.MIPS.stubs entry)
+# -32724: extd1's global GOT entry (undefined 0)
+# -32720: extd4's global GOT entry (undefined 0, reloc only)
.*
44020: 3c1c0006 lui gp,0x6
44024: 279c3fd0 addiu gp,gp,16336
44028: 0399e021 addu gp,gp,t9
- 4402c: 8f998024 lw t9,-32732\(gp\)
- 44030: 8f848018 lw a0,-32744\(gp\)
- 44034: 8f858028 lw a1,-32728\(gp\)
+ 4402c: 8f998028 lw t9,-32728\(gp\)
+ 44030: 8f848024 lw a0,-32732\(gp\)
+ 44034: 8f85802c lw a1,-32724\(gp\)
44038: 0320f809 jalr t9
- 4403c: 8f868020 lw a2,-32736\(gp\)
+ 4403c: 8f868018 lw a2,-32744\(gp\)
44040: 8f99801c lw t9,-32740\(gp\)
44044: 03200008 jr t9
- 44048: 8f84802c lw a0,-32724\(gp\)
+ 44048: 8f848020 lw a0,-32736\(gp\)
0004404c <f3>:
4404c: 03e00008 jr ra
440a0: 8f998010 lw t9,-32752\(gp\)
440a4: 03e07821 move t7,ra
440a8: 0320f809 jalr t9
- 440ac: 24180008 li t8,8
+ 440ac: 24180009 li t8,9
\.\.\.
000a0000 -32752\(gp\) 00000000 Lazy resolver
000a0004 -32748\(gp\) 80000000 Module pointer \(GNU extension\)
+ Local entries:
+ Address Access Initial
+ 000a0008 -32744\(gp\) 000a2000
+ 000a000c -32740\(gp\) 00043080
+ 000a0010 -32736\(gp\) 00043060
+
Global entries:
Address Access Initial Sym\.Val\. Type Ndx Name
- 000a0008 -32744\(gp\) 00000000 00000000 FUNC UND extf2
- 000a000c -32740\(gp\) 00000000 00000000 FUNC UND extf3
- 000a0010 -32736\(gp\) 000a2000 000a2000 OBJECT 16 extd2
- 000a0014 -32732\(gp\) 000440a0 000440a0 FUNC UND extf1
- 000a0018 -32728\(gp\) 00000000 00000000 OBJECT UND extd1
- 000a001c -32724\(gp\) 00000000 00000000 FUNC UND extf4
+ 000a0014 -32732\(gp\) 00000000 00000000 FUNC UND extf2
+ 000a0018 -32728\(gp\) 000440a0 000440a0 FUNC UND extf1
+ 000a001c -32724\(gp\) 00000000 00000000 OBJECT UND extd1
000a0020 -32720\(gp\) 00000000 00000000 OBJECT UND extd4
Entries:
Address Initial Sym.Val. Type Ndx Name
- 00081008 00043040 00000000 FUNC UND extf4
+ 00081008 00043040 00043060 FUNC UND extf4
0008100c 00043040 00000000 FUNC UND extf5
00081010 00043040 00000000 FUNC UND extf3
Symbol table '\.dynsym' contains .*:
+#
+# extf4 is referenced by a JAL and .word. The former requires a PLT entry
+# and the latter requires pointer equality, which means a symbol value is
+# needed.
#...
-.*: 00000000 +0 +FUNC +GLOBAL +DEFAULT +UND +extf5
+.*: 0+43060 +0 +FUNC +GLOBAL +DEFAULT \[MIPS PLT\] +UND +extf4
+#
+# extf5 is called but does not have its address taken. It needs a PLT
+# but no symbol value should be set.
+#...
+.*: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf5
+#
+# extd2 is referenced by %got, .word and %hi/%lo. The last pair forces
+# a copy reloc.
+#
+.*: 0+a2000 +24 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd2
+#
+# extf3 is referenced by a JAL and a GOT CALL reloc. The JAL forces a PLT
+# that the GOT CALL reloc will also use, but pointer equality isn't needed
+# and so no symbol value should be set.
+#
+.*: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf3
+#
+# extd3 is referenced by .word and %hi/%lo. The latter pair forces
+# a copy reloc.
+#...
+.*: 0+a2018 +28 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd3
+#
# The index on the next line should correspond to MIPS_GOTSYM,
# and the remaining symbols should have the same order as the
# GOT layout given in the *.dd dump.
-#...
- *5: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf2
- *6: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf3
- *7: 0+a2000 +24 +OBJECT +GLOBAL +DEFAULT +[0-9]+ +extd2
- *8: 0+440a0 +0 +FUNC +GLOBAL +DEFAULT +UND +extf1
- *9: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd1
- *10: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf4
+#
+ *8: 0+ +0 +FUNC +GLOBAL +DEFAULT +UND +extf2
+ *9: 0+440a0 +0 +FUNC +GLOBAL +DEFAULT +UND +extf1
+ *10: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd1
*11: 0+ +0 +OBJECT +GLOBAL +DEFAULT +UND +extd4
#pass
Relocation section '\.rel\.dyn' at offset .* contains .*:
* Offset * Info * Type * Sym\.Value * Sym\. Name
00000000 * 00000000 * R_MIPS_NONE *
-000a2018 * [^ ]*7e * R_MIPS_COPY * 000a2018 * extd3
000a2000 * [^ ]*7e * R_MIPS_COPY * 000a2000 * extd2
+000a2018 * [^ ]*7e * R_MIPS_COPY * 000a2018 * extd3
000a1000 * [^ ]*03 * R_MIPS_REL32 * 00000000 * extd1
000a1014 * [^ ]*03 * R_MIPS_REL32 * 00000000 * extd4
Relocation section '\.rel\.plt' at offset .* contains .*:
* Offset * Info * Type * Sym\.Value * Sym\. Name
-00081008 * [^ ]*7f * R_MIPS_JUMP_SLOT * 00000000 * extf4
+00081008 * [^ ]*7f * R_MIPS_JUMP_SLOT * 00043060 * extf4
0008100c * [^ ]*7f * R_MIPS_JUMP_SLOT * 00000000 * extf5
00081010 * [^ ]*7f * R_MIPS_JUMP_SLOT * 00000000 * extf3
projects / binutils-gdb.git / commitdiff