[PATCH v4] MIPS: Support PCREL GOT access
Fangrui Song
i@maskray.me
Wed Apr 3 04:04:19 GMT 2024
On Sat, Mar 16, 2024 at 1:51 AM YunQiang Su <syq@gcc.gnu.org> wrote:
>
> Current if we need to access a GOT entry, we use the
> got_base + offset. Thus we have GOT and XGOT.
> From MIPSr6, we have PCREL instructions like ALUIPC,
> so we have no need to use got_base now.
> For pre-R6, we can use BAL to get the the value of PC.
Currently loading a GOT entry requires loading the GOT base address
first, then adding an offset.
Therefore, (elaborate the reason) we need both GOT and XGOT.
MIPSr6 introduced PC-relative instructions like ..., which allow us to
use a pair of .. and .. to materialize the GOT entry address.
> In this patch, we add 8 new relocs:
> R_MIPS_GOTPC_HI16, R_MIPS_GOTPC_LO16,
> R_MIPS_GOTPC_CALL_HI16, R_MIPS_GOTPC_CALL_LO16,
> R_MIPS_GOTPC_AHI16, R_MIPS_GOTPC_ALO16,
> R_MIPS_GOTPC_CALL_AHI16, R_MIPS_GOTPC_CALL_ALO16.
> These asm notes can be used for them:
> %gotpc_hi(sym), %gotpc_lo(sym),
> %gotpc_call_hi(sym), %gotpc_call_lo(sym),
> %gotpc_ahi(sym), %gotpc_alo(sym),
> %gotpc_call_ahi(sym), %gotpc_call_alo(sym).
GCC's mips port names assembler relocation operators
(gas/config/tc-mips.c names them `mips_percent_op`).
Other ports seem to prefer "modifiers" (assembler modifiers,
expression modifiers).
> 3 new BFD_RELOCS are added for ALUIPC style relocs:
> BFD_RELOC_MIPS_ALO16_GOTOFF,
> BFD_RELOC_MIPS_AHI16_GOTOFF,
> BFD_RELOC_MIPS_AHI16_S_GOTOFF.
>
> 6 new BFD_RELOCS are added for function calling:
> BFD_RELOC_MIPS_LO16_GOTOFF_CALL,
> BFD_RELOC_MIPS_HI16_GOTOFF_CALL,
> BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL,
> BFD_RELOC_MIPS_ALO16_GOTOFF_CALL,
> BFD_RELOC_MIPS_AHI16_GOTOFF_CALL,
> BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL,
>
> The mapping between BFD_RELOC_ and R_MIPS_GOTPC are:
> BFD_RELOC_HI16_S_GOTOFF -> R_MIPS_GOTPC_HI16
> BFD_RELOC_LO16_GOTOFF -> R_MIPS_GOTPC_LO16
> BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL -> R_MIPS_GOTPC_CALL_HI16
> BFD_RELOC_MIPS_LO16_GOTOFF_CALL -> R_MIPS_GOTPC_CALL_LO16.
> BFD_RELOC_MIPS_AHI16_S_GOTOFF -> R_MIPS_GOTPC_AHI16
> BFD_RELOC_MIPS_ALO16_GOTOFF -> R_MIPS_GOTPC_ALO16
> BFD_RELOC_MIPS_MIPS_AHI16_S_GOTOFF_CALL -> R_MIPS_GOTPC_CALL_AHI16
> BFD_RELOC_MIPS_MIPS_ALO16_GOTOFF_CALL -> R_MIPS_GOTPC_CALL_ALO16.
>
> The difference of BAL and ALUIPC is that ALUIPC will unset the lower 16
> bits of result.
>
> For r6, both styles are supported, and of course ALUIPC style is
> recommended. For pre-R6, only BAL style is supported.
>
> Here are the ASM examples:
> ALUIPC:
> aluipc $2,%gotpc_ahi(sym)
> lw $2,%gotpc_alo(sym)($2)
>
> BAL:
> bal . + 8 # Note: $31 is clobbered here.
> lui $2,%gotpc_hi(sym)
> addiu $2,$2,$31
> lw $2,%gotpc_lo(sym)($2)
>
> gas/ChangeLog:
> * config/tc-mips.c: Add GOTPC relocs support.
> * testsuite/gas/mips/mips.exp: Add GOTPC testcases.
> * testsuite/gas/mips/gotpc-aluipc-32.s: Ditto.
> * testsuite/gas/mips/gotpc-aluipc-64.s: Ditto.
> * testsuite/gas/mips/gotpc-aluipc-n64.d: Ditto.
> * testsuite/gas/mips/gotpc-aluipc-n32.d: Ditto.
> * testsuite/gas/mips/gotpc-aluipc-o32.d: Ditto.
> * testsuite/gas/mips/gotpc-bal-32.s: Ditto.
> * testsuite/gas/mips/gotpc-bal-64.s: Ditto.
> * testsuite/gas/mips/gotpc-bal-n64.d: Ditto.
> * testsuite/gas/mips/gotpc-bal-n32.d: Ditto.
> * testsuite/gas/mips/gotpc-bal-o32.d: Ditto.
>
> bfd/ChangeLog:
> * elfxx-mips.c: Add GOTPC relocs support.
> * elf32-mips.c: Ditto.
> * elf64-mips.c: Ditto.
> * elfn32-mips.c: Ditto.
> * bfd-in2.h: Add new MIPS GOTPC BFD_RELOC defination.
typo
> * reclos.c: Ditto.
> * libbfd.h: Ditto.
>
> elfcpp/ChangeLog:
> * mips.h: Add new MIPS GOTPC relocs.
>
> include/ChangeLog:
> * elf/mips.h (elf_mips_reloc_type): Add new MIPS GOTPC relocs.
>
> ld/ChangeLog:
> * testsuite/ld-mips-elf/mips-elf.exp: Add GOTPC testcases.
> * testsuite/ld-mips-elf/gotpc-callee.s: Likewise.
> * testsuite/ld-mips-elf/gotpc.ld: Likewise.
> * testsuite/ld-mips-elf/gotpc-o32.s: Likewise.
> * testsuite/ld-mips-elf/gotpc-o32.dd: Likewise.
> * testsuite/ld-mips-elf/gotpc-o32.gd: Likewise.
> * testsuite/ld-mips-elf/gotpc-n32.s: Likewise.
> * testsuite/ld-mips-elf/gotpc-n32.dd: Likewise.
> * testsuite/ld-mips-elf/gotpc-n32.gd: Likewise.
> * testsuite/ld-mips-elf/gotpc-n64.s: Likewise.
> * testsuite/ld-mips-elf/gotpc-n64.dd: Likewise.
> * testsuite/ld-mips-elf/gotpc-n64.gd: Likewise.
> ---
> bfd/bfd-in2.h | 12 ++
> bfd/elf32-mips.c | 123 +++++++++++-
> bfd/elf64-mips.c | 234 +++++++++++++++++++++-
> bfd/elfn32-mips.c | 234 +++++++++++++++++++++-
> bfd/elfxx-mips.c | 107 +++++++++-
> bfd/libbfd.h | 9 +
> bfd/reloc.c | 18 ++
> elfcpp/mips.h | 8 +
> gas/config/tc-mips.c | 72 ++++++-
> gas/testsuite/gas/mips/gotpc-aluipc-32.s | 51 +++++
> gas/testsuite/gas/mips/gotpc-aluipc-64.s | 50 +++++
> gas/testsuite/gas/mips/gotpc-aluipc-n32.d | 17 ++
> gas/testsuite/gas/mips/gotpc-aluipc-n64.d | 25 +++
> gas/testsuite/gas/mips/gotpc-aluipc-o32.d | 17 ++
> gas/testsuite/gas/mips/gotpc-bal-32.s | 55 +++++
> gas/testsuite/gas/mips/gotpc-bal-64.s | 54 +++++
> gas/testsuite/gas/mips/gotpc-bal-n32.d | 17 ++
> gas/testsuite/gas/mips/gotpc-bal-n64.d | 25 +++
> gas/testsuite/gas/mips/gotpc-bal-o32.d | 17 ++
> gas/testsuite/gas/mips/mips.exp | 8 +
> include/elf/mips.h | 10 +-
> ld/testsuite/ld-mips-elf/gotpc-callee.s | 41 ++++
> ld/testsuite/ld-mips-elf/gotpc-n32.dd | 73 +++++++
> ld/testsuite/ld-mips-elf/gotpc-n32.gd | 15 ++
> ld/testsuite/ld-mips-elf/gotpc-n32.s | 46 +++++
> ld/testsuite/ld-mips-elf/gotpc-n64.dd | 75 +++++++
> ld/testsuite/ld-mips-elf/gotpc-n64.gd | 15 ++
> ld/testsuite/ld-mips-elf/gotpc-n64.s | 46 +++++
> ld/testsuite/ld-mips-elf/gotpc-o32.dd | 71 +++++++
> ld/testsuite/ld-mips-elf/gotpc-o32.gd | 15 ++
> ld/testsuite/ld-mips-elf/gotpc-o32.s | 45 +++++
> ld/testsuite/ld-mips-elf/gotpc.ld | 17 ++
> ld/testsuite/ld-mips-elf/mips-elf.exp | 23 +++
> 33 files changed, 1637 insertions(+), 8 deletions(-)
> create mode 100644 gas/testsuite/gas/mips/gotpc-aluipc-32.s
> create mode 100644 gas/testsuite/gas/mips/gotpc-aluipc-64.s
> create mode 100644 gas/testsuite/gas/mips/gotpc-aluipc-n32.d
> create mode 100644 gas/testsuite/gas/mips/gotpc-aluipc-n64.d
> create mode 100644 gas/testsuite/gas/mips/gotpc-aluipc-o32.d
> create mode 100644 gas/testsuite/gas/mips/gotpc-bal-32.s
> create mode 100644 gas/testsuite/gas/mips/gotpc-bal-64.s
> create mode 100644 gas/testsuite/gas/mips/gotpc-bal-n32.d
> create mode 100644 gas/testsuite/gas/mips/gotpc-bal-n64.d
> create mode 100644 gas/testsuite/gas/mips/gotpc-bal-o32.d
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-callee.s
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-n32.dd
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-n32.gd
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-n32.s
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-n64.dd
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-n64.gd
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-n64.s
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-o32.dd
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-o32.gd
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc-o32.s
> create mode 100644 ld/testsuite/ld-mips-elf/gotpc.ld
>
> diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
> index 29602e054da..e8bb1195c27 100644
> --- a/bfd/bfd-in2.h
> +++ b/bfd/bfd-in2.h
> @@ -3658,6 +3658,18 @@ enum bfd_reloc_code_real
> BFD_RELOC_MIPS_18_PCREL_S3,
> BFD_RELOC_MIPS_19_PCREL_S2,
>
> + BFD_RELOC_MIPS_LO16_GOTOFF_CALL,
> + BFD_RELOC_MIPS_HI16_GOTOFF_CALL,
> + BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL,
> +
> + BFD_RELOC_MIPS_ALO16_GOTOFF,
> + BFD_RELOC_MIPS_AHI16_GOTOFF,
> + BFD_RELOC_MIPS_AHI16_S_GOTOFF,
> +
> + BFD_RELOC_MIPS_ALO16_GOTOFF_CALL,
> + BFD_RELOC_MIPS_AHI16_GOTOFF_CALL,
> + BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL,
> +
> /* microMIPS versions of generic BFD relocs. */
> BFD_RELOC_MICROMIPS_GPREL16,
> BFD_RELOC_MICROMIPS_HI16,
> diff --git a/bfd/elf32-mips.c b/bfd/elf32-mips.c
> index 63d7334dd52..7edcc30d331 100644
> --- a/bfd/elf32-mips.c
> +++ b/bfd/elf32-mips.c
> @@ -809,6 +809,119 @@ static reloc_howto_type elf_mips_howto_table_rel[] =
> 0x0000ffff, /* src_mask */
> 0x0000ffff, /* dst_mask */
> true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_HI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_LO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_HI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_LO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_AHI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_ALO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_AHI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_ALO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> };
>
> /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
> @@ -2030,7 +2143,15 @@ static const struct elf_reloc_map mips_reloc_map[] =
> { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 },
> { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 },
> { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 },
> - { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 }
> + { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 },
> + { BFD_RELOC_HI16_S_GOTOFF, R_MIPS_GOTPC_HI16 },
> + { BFD_RELOC_LO16_GOTOFF, R_MIPS_GOTPC_LO16 },
> + { BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL, R_MIPS_GOTPC_CALL_HI16 },
> + { BFD_RELOC_MIPS_LO16_GOTOFF_CALL, R_MIPS_GOTPC_CALL_LO16 },
> + { BFD_RELOC_MIPS_AHI16_S_GOTOFF, R_MIPS_GOTPC_AHI16 },
> + { BFD_RELOC_MIPS_ALO16_GOTOFF, R_MIPS_GOTPC_ALO16 },
> + { BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL, R_MIPS_GOTPC_CALL_AHI16 },
> + { BFD_RELOC_MIPS_ALO16_GOTOFF_CALL, R_MIPS_GOTPC_CALL_ALO16 }
> };
>
> static const struct elf_reloc_map mips16_reloc_map[] =
> diff --git a/bfd/elf64-mips.c b/bfd/elf64-mips.c
> index 489a461bb0b..8ebaa859475 100644
> --- a/bfd/elf64-mips.c
> +++ b/bfd/elf64-mips.c
> @@ -889,6 +889,118 @@ static reloc_howto_type mips_elf64_howto_table_rel[] =
> 0x0000ffff, /* dst_mask */
> true), /* pcrel_offset */
>
> + HOWTO (R_MIPS_GOTPC_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_HI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_LO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_HI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_LO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_AHI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_ALO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_AHI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_ALO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> };
>
> /* The relocation table used for SHT_RELA sections. */
> @@ -1670,6 +1782,118 @@ static reloc_howto_type mips_elf64_howto_table_rela[] =
> 0x0000ffff, /* dst_mask */
> true), /* pcrel_offset */
>
> + HOWTO (R_MIPS_GOTPC_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_HI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_LO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_HI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_LO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_AHI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_ALO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_AHI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_ALO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> };
>
> static reloc_howto_type mips16_elf64_howto_table_rel[] =
> @@ -3743,7 +3967,15 @@ static const struct elf_reloc_map mips_reloc_map[] =
> { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 },
> { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 },
> { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 },
> - { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 }
> + { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 },
> + { BFD_RELOC_HI16_S_GOTOFF, R_MIPS_GOTPC_HI16 },
> + { BFD_RELOC_LO16_GOTOFF, R_MIPS_GOTPC_LO16 },
> + { BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL, R_MIPS_GOTPC_CALL_HI16 },
> + { BFD_RELOC_MIPS_LO16_GOTOFF_CALL, R_MIPS_GOTPC_CALL_LO16 },
> + { BFD_RELOC_MIPS_AHI16_S_GOTOFF, R_MIPS_GOTPC_AHI16 },
> + { BFD_RELOC_MIPS_ALO16_GOTOFF, R_MIPS_GOTPC_ALO16 },
> + { BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL, R_MIPS_GOTPC_CALL_AHI16 },
> + { BFD_RELOC_MIPS_ALO16_GOTOFF_CALL, R_MIPS_GOTPC_CALL_ALO16 }
> };
>
> static const struct elf_reloc_map mips16_reloc_map[] =
> diff --git a/bfd/elfn32-mips.c b/bfd/elfn32-mips.c
> index 7e672200006..f6a6560b4c2 100644
> --- a/bfd/elfn32-mips.c
> +++ b/bfd/elfn32-mips.c
> @@ -868,6 +868,118 @@ static reloc_howto_type elf_mips_howto_table_rel[] =
> 0x0000ffff, /* dst_mask */
> true), /* pcrel_offset */
>
> + HOWTO (R_MIPS_GOTPC_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_HI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_LO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_HI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_LO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_AHI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_ALO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_AHI16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_ALO16", /* name */
> + true, /* partial_inplace */
> + 0x0000ffff, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> };
>
> /* The relocation table used for SHT_RELA sections. */
> @@ -1650,6 +1762,118 @@ static reloc_howto_type elf_mips_howto_table_rela[] =
> 0x0000ffff, /* dst_mask */
> true), /* pcrel_offset */
>
> + HOWTO (R_MIPS_GOTPC_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_HI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_LO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_HI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_HI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_LO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_LO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_AHI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_ALO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_AHI16, /* type */
> + 16, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_signed, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_AHI16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> + HOWTO (R_MIPS_GOTPC_CALL_ALO16, /* type */
> + 0, /* rightshift */
> + 4, /* size */
> + 16, /* bitsize */
> + true, /* pc_relative */
> + 0, /* bitpos */
> + complain_overflow_dont, /* complain_on_overflow */
> + _bfd_mips_elf_generic_reloc, /* special_function */
> + "R_MIPS_GOTPC_CALL_ALO16", /* name */
> + false, /* partial_inplace */
> + 0, /* src_mask */
> + 0x0000ffff, /* dst_mask */
> + true), /* pcrel_offset */
> +
> };
>
> static reloc_howto_type elf_mips16_howto_table_rel[] =
> @@ -3577,7 +3801,15 @@ static const struct elf_reloc_map mips_reloc_map[] =
> { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 },
> { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 },
> { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 },
> - { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 }
> + { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 },
> + { BFD_RELOC_HI16_S_GOTOFF, R_MIPS_GOTPC_HI16 },
> + { BFD_RELOC_LO16_GOTOFF, R_MIPS_GOTPC_LO16 },
> + { BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL, R_MIPS_GOTPC_CALL_HI16 },
> + { BFD_RELOC_MIPS_LO16_GOTOFF_CALL, R_MIPS_GOTPC_CALL_LO16 },
> + { BFD_RELOC_MIPS_AHI16_S_GOTOFF, R_MIPS_GOTPC_AHI16 },
> + { BFD_RELOC_MIPS_ALO16_GOTOFF, R_MIPS_GOTPC_ALO16 },
> + { BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL, R_MIPS_GOTPC_CALL_AHI16 },
> + { BFD_RELOC_MIPS_ALO16_GOTOFF_CALL, R_MIPS_GOTPC_CALL_ALO16 }
> };
>
> static const struct elf_reloc_map mips16_reloc_map[] =
> diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
> index 89dd34e798b..c4d6787357e 100644
> --- a/bfd/elfxx-mips.c
> +++ b/bfd/elfxx-mips.c
> @@ -2267,19 +2267,28 @@ got_page_reloc_p (unsigned int r_type)
> static inline bool
> got_lo16_reloc_p (unsigned int r_type)
> {
> - return r_type == R_MIPS_GOT_LO16 || r_type == R_MICROMIPS_GOT_LO16;
> + return (r_type == R_MIPS_GOT_LO16
> + || r_type == R_MIPS_GOTPC_LO16
> + || r_type == R_MIPS_GOTPC_ALO16
> + || r_type == R_MICROMIPS_GOT_LO16);
> }
>
> static inline bool
> call_hi16_reloc_p (unsigned int r_type)
> {
> - return r_type == R_MIPS_CALL_HI16 || r_type == R_MICROMIPS_CALL_HI16;
> + return (r_type == R_MIPS_CALL_HI16
> + || r_type == R_MIPS_GOTPC_CALL_HI16
> + || r_type == R_MIPS_GOTPC_CALL_AHI16
> + || r_type == R_MICROMIPS_CALL_HI16);
> }
>
> static inline bool
> call_lo16_reloc_p (unsigned int r_type)
> {
> - return r_type == R_MIPS_CALL_LO16 || r_type == R_MICROMIPS_CALL_LO16;
> + return (r_type == R_MIPS_CALL_LO16
> + || r_type == R_MIPS_GOTPC_CALL_LO16
> + || r_type == R_MIPS_GOTPC_CALL_ALO16
> + || r_type == R_MICROMIPS_CALL_LO16);
> }
>
> static inline bool
> @@ -5240,6 +5249,21 @@ mips_elf_highest (bfd_vma value ATTRIBUTE_UNUSED)
> return MINUS_ONE;
> #endif
> }
> +
> +/**/
> +static bfd_vma
> +mips_elf_16bit_align (bfd_vma value, bfd_vma p, bool hi)
> +{
> + bfd_vma value_lo = (value & 0xffff) + (p & 0xffff);
> + bfd_vma value_hi = (value >> 16) & 0xffff;
> + value_hi += mips_elf_high (value_lo);
> + value_lo &= 0xffff;
> + if (hi)
> + return value_hi;
> + else
> + return value_lo;
> +}
> +
>
> /* Create the .compact_rel section. */
>
> @@ -5887,6 +5911,10 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
> case R_MIPS_GOT_DISP:
> case R_MIPS_GOT_LO16:
> case R_MIPS_CALL_LO16:
> + case R_MIPS_GOTPC_LO16:
> + case R_MIPS_GOTPC_CALL_LO16:
> + case R_MIPS_GOTPC_ALO16:
> + case R_MIPS_GOTPC_CALL_ALO16:
> case R_MICROMIPS_CALL16:
> case R_MICROMIPS_GOT16:
> case R_MICROMIPS_GOT_PAGE:
> @@ -5904,6 +5932,8 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
> /* Fall through. */
> case R_MIPS_GOT_HI16:
> case R_MIPS_CALL_HI16:
> + case R_MIPS_GOTPC_HI16:
> + case R_MIPS_GOTPC_CALL_HI16:
> case R_MICROMIPS_GOT_HI16:
> case R_MICROMIPS_CALL_HI16:
> if (resolved_to_zero
> @@ -5951,6 +5981,14 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
> case R_MIPS_CALL_HI16:
> case R_MIPS_GOT_LO16:
> case R_MIPS_CALL_LO16:
> + case R_MIPS_GOTPC_HI16:
> + case R_MIPS_GOTPC_LO16:
> + case R_MIPS_GOTPC_CALL_HI16:
> + case R_MIPS_GOTPC_CALL_LO16:
> + case R_MIPS_GOTPC_AHI16:
> + case R_MIPS_GOTPC_ALO16:
> + case R_MIPS_GOTPC_CALL_AHI16:
> + case R_MIPS_GOTPC_CALL_ALO16:
> case R_MICROMIPS_CALL16:
> case R_MICROMIPS_GOT16:
> case R_MICROMIPS_GOT_DISP:
> @@ -6412,6 +6450,45 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
> value &= howto->dst_mask;
> break;
>
> + /* For r6 and pre-r6, we can use:
> + bal . + 8
> + lui $2,%gotpc_hi(sym) # or %gotpc_call_hi
> + addu $2,$2,$ra
> + lw $2,%gotpc_lo(sym) # or %gotpc_call_lo
> + In this case, the LO should +=4, and HI should -=4.
> +
> + For R6+, we can use
> + aluipc $2,%gotpc_ahi(sym) # or %gotpc_call_ahi
> + lw $2,%gotpc_alo(sym)($2) or %gotpc_call_alo
> + In this case, the HI is OK, while LO should +4 and add the page_offet */
> + case R_MIPS_GOTPC_HI16:
> + case R_MIPS_GOTPC_CALL_HI16:
> + value = mips_elf_high (addend + gp - p + g - 4);
> + value &= howto->dst_mask;
> + break;
> +
> + case R_MIPS_GOTPC_LO16:
> + case R_MIPS_GOTPC_CALL_LO16:
> + if (howto->partial_inplace)
> + addend = _bfd_mips_elf_sign_extend (addend, 16);
> + value = addend + gp - p + g + 4;
> + value &= howto->dst_mask;
> + break;
> +
> + case R_MIPS_GOTPC_AHI16:
> + case R_MIPS_GOTPC_CALL_AHI16:
> + value = mips_elf_16bit_align (addend + gp - p + g, p, true);
> + value &= howto->dst_mask;
> + break;
> +
> + case R_MIPS_GOTPC_ALO16:
> + case R_MIPS_GOTPC_CALL_ALO16:
> + if (howto->partial_inplace)
> + addend = _bfd_mips_elf_sign_extend (addend, 16);
> + value = mips_elf_16bit_align (addend + gp - p + g, p, false);
> + value &= howto->dst_mask;
> + break;
> +
> case R_MIPS_PCHI16:
> value = mips_elf_high (symbol + addend - p);
> value &= howto->dst_mask;
> @@ -8282,6 +8359,14 @@ mips_elf_add_lo16_rel_addend (bfd *abfd,
> lo16_type = R_MIPS16_LO16;
> else if (micromips_reloc_p (r_type))
> lo16_type = R_MICROMIPS_LO16;
> + else if (r_type == R_MIPS_GOTPC_HI16)
> + lo16_type = R_MIPS_GOTPC_LO16;
> + else if (r_type == R_MIPS_GOTPC_CALL_HI16)
> + lo16_type = R_MIPS_GOTPC_CALL_LO16;
> + else if (r_type == R_MIPS_GOTPC_AHI16)
> + lo16_type = R_MIPS_GOTPC_ALO16;
> + else if (r_type == R_MIPS_GOTPC_CALL_AHI16)
> + lo16_type = R_MIPS_GOTPC_CALL_ALO16;
> else if (r_type == R_MIPS_PCHI16)
> lo16_type = R_MIPS_PCLO16;
> else
> @@ -8742,6 +8827,10 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
> case R_MIPS_CALL16:
> case R_MIPS_CALL_HI16:
> case R_MIPS_CALL_LO16:
> + case R_MIPS_GOTPC_CALL_HI16:
> + case R_MIPS_GOTPC_CALL_LO16:
> + case R_MIPS_GOTPC_CALL_AHI16:
> + case R_MIPS_GOTPC_CALL_ALO16:
> case R_MIPS16_CALL16:
> case R_MICROMIPS_CALL16:
> case R_MICROMIPS_CALL_HI16:
> @@ -8751,6 +8840,8 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
>
> case R_MIPS_GOT16:
> case R_MIPS_GOT_LO16:
> + case R_MIPS_GOTPC_LO16:
> + case R_MIPS_GOTPC_ALO16:
> case R_MIPS_GOT_PAGE:
> case R_MIPS_GOT_DISP:
> case R_MIPS16_GOT16:
> @@ -8788,6 +8879,8 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
>
> /* Fall through. */
> case R_MIPS_GOT_HI16:
> + case R_MIPS_GOTPC_HI16:
> + case R_MIPS_GOTPC_AHI16:
> case R_MIPS_GOT_OFST:
> case R_MIPS_TLS_GOTTPREL:
> case R_MIPS_TLS_GD:
> @@ -8958,6 +9051,10 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
>
> case R_MIPS_CALL_HI16:
> case R_MIPS_CALL_LO16:
> + case R_MIPS_GOTPC_CALL_HI16:
> + case R_MIPS_GOTPC_CALL_LO16:
> + case R_MIPS_GOTPC_CALL_AHI16:
> + case R_MIPS_GOTPC_CALL_ALO16:
> case R_MICROMIPS_CALL_HI16:
> case R_MICROMIPS_CALL_LO16:
> if (h != NULL)
> @@ -8983,6 +9080,10 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
> case R_MIPS_GOT16:
> case R_MIPS_GOT_HI16:
> case R_MIPS_GOT_LO16:
> + case R_MIPS_GOTPC_HI16:
> + case R_MIPS_GOTPC_LO16:
> + case R_MIPS_GOTPC_AHI16:
> + case R_MIPS_GOTPC_ALO16:
> case R_MICROMIPS_GOT16:
> case R_MICROMIPS_GOT_HI16:
> case R_MICROMIPS_GOT_LO16:
> diff --git a/bfd/libbfd.h b/bfd/libbfd.h
> index f15b5f27db8..c10ee485abf 100644
> --- a/bfd/libbfd.h
> +++ b/bfd/libbfd.h
> @@ -1273,6 +1273,15 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
> "BFD_RELOC_MIPS_26_PCREL_S2",
> "BFD_RELOC_MIPS_18_PCREL_S3",
> "BFD_RELOC_MIPS_19_PCREL_S2",
> + "BFD_RELOC_MIPS_LO16_GOTOFF_CALL",
> + "BFD_RELOC_MIPS_HI16_GOTOFF_CALL",
> + "BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL",
> + "BFD_RELOC_MIPS_ALO16_GOTOFF",
> + "BFD_RELOC_MIPS_AHI16_GOTOFF",
> + "BFD_RELOC_MIPS_AHI16_S_GOTOFF",
> + "BFD_RELOC_MIPS_ALO16_GOTOFF_CALL",
> + "BFD_RELOC_MIPS_AHI16_GOTOFF_CALL",
> + "BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL",
> "BFD_RELOC_MICROMIPS_GPREL16",
> "BFD_RELOC_MICROMIPS_HI16",
> "BFD_RELOC_MICROMIPS_HI16_S",
> diff --git a/bfd/reloc.c b/bfd/reloc.c
> index a187afe9b56..b88763c850b 100644
> --- a/bfd/reloc.c
> +++ b/bfd/reloc.c
> @@ -2040,6 +2040,24 @@ ENUMX
> BFD_RELOC_MIPS_18_PCREL_S3
> ENUMX
> BFD_RELOC_MIPS_19_PCREL_S2
> +ENUMX
> + BFD_RELOC_LO16_GOTOFF_CALL
> +ENUMX
> + BFD_RELOC_HI16_GOTOFF_CALL
> +ENUMX
> + BFD_RELOC_HI16_S_GOTOFF_CALL
> +ENUMX
> + BFD_RELOC_ALO16_GOTOFF
> +ENUMX
> + BFD_RELOC_AHI16_GOTOFF
> +ENUMX
> + BFD_RELOC_AHI16_S_GOTOFF
> +ENUMX
> + BFD_RELOC_ALO16_GOTOFF_CALL
> +ENUMX
> + BFD_RELOC_AHI16_GOTOFF_CALL
> +ENUMX
> + BFD_RELOC_AHI16_S_GOTOFF_CALL
> ENUMDOC
> MIPS PC-relative relocations.
>
> diff --git a/elfcpp/mips.h b/elfcpp/mips.h
> index e8a8e2458e9..79884bd651b 100644
> --- a/elfcpp/mips.h
> +++ b/elfcpp/mips.h
> @@ -104,6 +104,14 @@ enum
> R_MIPS_PC19_S2 = 63,
> R_MIPS_PCHI16 = 64,
> R_MIPS_PCLO16 = 65,
> + R_MIPS_GOTPC_HI16 = 66,
> + R_MIPS_GOTPC_LO16 = 67,
> + R_MIPS_GOTPC_CALL_HI16 = 68,
> + R_MIPS_GOTPC_CALL_LO16 = 69,
> + R_MIPS_GOTPC_AHI16 = 70,
> + R_MIPS_GOTPC_ALO16 = 71,
> + R_MIPS_GOTPC_CALL_AHI16 = 72,
> + R_MIPS_GOTPC_CALL_ALO16 = 73,
> // These relocs are used for the mips16.
> R_MIPS16_26 = 100,
> R_MIPS16_GPREL = 101,
> diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
> index 8f54cb8937a..7ee6c0259fa 100644
> --- a/gas/config/tc-mips.c
> +++ b/gas/config/tc-mips.c
> @@ -4372,6 +4372,14 @@ limited_pcrel_reloc_p (bfd_reloc_code_real_type reloc)
> case BFD_RELOC_32_PCREL:
> case BFD_RELOC_HI16_S_PCREL:
> case BFD_RELOC_LO16_PCREL:
> + case BFD_RELOC_HI16_S_GOTOFF:
> + case BFD_RELOC_LO16_GOTOFF:
> + case BFD_RELOC_MIPS_LO16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL:
> return HAVE_64BIT_ADDRESSES;
>
> default:
> @@ -7432,6 +7440,8 @@ calculate_reloc (bfd_reloc_code_real_type reloc, offsetT operand,
>
> case BFD_RELOC_HI16_S:
> case BFD_RELOC_HI16_S_PCREL:
> + case BFD_RELOC_HI16_S_GOTOFF:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF:
> case BFD_RELOC_MICROMIPS_HI16_S:
> case BFD_RELOC_MIPS16_HI16_S:
> *result = ((operand + 0x8000) >> 16) & 0xffff;
> @@ -7445,6 +7455,10 @@ calculate_reloc (bfd_reloc_code_real_type reloc, offsetT operand,
>
> case BFD_RELOC_LO16:
> case BFD_RELOC_LO16_PCREL:
> + case BFD_RELOC_LO16_GOTOFF:
> + case BFD_RELOC_MIPS_LO16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF_CALL:
> case BFD_RELOC_MICROMIPS_LO16:
> case BFD_RELOC_MIPS16_LO16:
> *result = operand & 0xffff;
> @@ -7507,6 +7521,22 @@ append_insn (struct mips_cl_insn *ip, expressionS *address_expr,
> as_warn (_("wrong size instruction in a %u-bit branch delay slot"),
> (prev_pinfo2 & INSN2_BRANCH_DELAY_16BIT) != 0 ? 16 : 32);
>
> + if (!ISA_IS_R6 (mips_opts.isa))
> + switch (*reloc_type)
> + {
> + default:
> + break;
> +
> + case BFD_RELOC_MIPS_ALO16_GOTOFF:
> + case BFD_RELOC_MIPS_AHI16_GOTOFF:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_AHI16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL:
> + as_fatal (_("ALUIPC style GOTPC cannot work with pre-R6."));
> + break;
> + }
> +
> if (address_expr == NULL)
> ip->complete_p = 1;
> else if (reloc_type[0] <= BFD_RELOC_UNUSED
> @@ -14583,7 +14613,15 @@ static const struct percent_op_match mips_percent_op[] =
> {"%gottprel", BFD_RELOC_MIPS_TLS_GOTTPREL},
> {"%hi", BFD_RELOC_HI16_S},
> {"%pcrel_hi", BFD_RELOC_HI16_S_PCREL},
> - {"%pcrel_lo", BFD_RELOC_LO16_PCREL}
> + {"%pcrel_lo", BFD_RELOC_LO16_PCREL},
> + {"%gotpc_hi", BFD_RELOC_HI16_S_GOTOFF},
> + {"%gotpc_lo", BFD_RELOC_LO16_GOTOFF},
> + {"%gotpc_call_hi", BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL},
> + {"%gotpc_call_lo", BFD_RELOC_MIPS_LO16_GOTOFF_CALL},
> + {"%gotpc_ahi", BFD_RELOC_MIPS_AHI16_S_GOTOFF},
> + {"%gotpc_alo", BFD_RELOC_MIPS_ALO16_GOTOFF},
> + {"%gotpc_call_ahi", BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL},
> + {"%gotpc_call_alo", BFD_RELOC_MIPS_ALO16_GOTOFF_CALL}
> };
>
> static const struct percent_op_match mips16_percent_op[] =
> @@ -15543,6 +15581,14 @@ mips_force_relocation (fixS *fixp)
> || fixp->fx_r_type == BFD_RELOC_MIPS_26_PCREL_S2
> || fixp->fx_r_type == BFD_RELOC_MIPS_18_PCREL_S3
> || fixp->fx_r_type == BFD_RELOC_MIPS_19_PCREL_S2
> + || fixp->fx_r_type == BFD_RELOC_HI16_S_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_LO16_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_MIPS_LO16_GOTOFF_CALL
> + || fixp->fx_r_type == BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL
> + || fixp->fx_r_type == BFD_RELOC_MIPS_AHI16_S_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_MIPS_ALO16_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_MIPS_ALO16_GOTOFF_CALL
> + || fixp->fx_r_type == BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL
> || fixp->fx_r_type == BFD_RELOC_HI16_S_PCREL
> || fixp->fx_r_type == BFD_RELOC_LO16_PCREL))
> return 1;
> @@ -15824,6 +15870,14 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
> case BFD_RELOC_MIPS_19_PCREL_S2:
> case BFD_RELOC_HI16_S_PCREL:
> case BFD_RELOC_LO16_PCREL:
> + case BFD_RELOC_HI16_S_GOTOFF:
> + case BFD_RELOC_LO16_GOTOFF:
> + case BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_LO16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF_CALL:
> break;
>
> case BFD_RELOC_32:
> @@ -15967,6 +16021,14 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
> case BFD_RELOC_MIPS_GOT_LO16:
> case BFD_RELOC_MIPS_CALL_HI16:
> case BFD_RELOC_MIPS_CALL_LO16:
> + case BFD_RELOC_HI16_S_GOTOFF:
> + case BFD_RELOC_LO16_GOTOFF:
> + case BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_LO16_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF:
> + case BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL:
> + case BFD_RELOC_MIPS_ALO16_GOTOFF_CALL:
> case BFD_RELOC_HI16_S_PCREL:
> case BFD_RELOC_LO16_PCREL:
> case BFD_RELOC_MIPS16_GPREL:
> @@ -18388,6 +18450,14 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
> || fixp->fx_r_type == BFD_RELOC_MIPS_26_PCREL_S2
> || fixp->fx_r_type == BFD_RELOC_MIPS_18_PCREL_S3
> || fixp->fx_r_type == BFD_RELOC_MIPS_19_PCREL_S2
> + || fixp->fx_r_type == BFD_RELOC_HI16_S_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_LO16_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_MIPS_LO16_GOTOFF_CALL
> + || fixp->fx_r_type == BFD_RELOC_MIPS_HI16_S_GOTOFF_CALL
> + || fixp->fx_r_type == BFD_RELOC_MIPS_AHI16_S_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_MIPS_ALO16_GOTOFF
> + || fixp->fx_r_type == BFD_RELOC_MIPS_ALO16_GOTOFF_CALL
> + || fixp->fx_r_type == BFD_RELOC_MIPS_AHI16_S_GOTOFF_CALL
> || fixp->fx_r_type == BFD_RELOC_HI16_S_PCREL
> || fixp->fx_r_type == BFD_RELOC_LO16_PCREL);
>
> diff --git a/gas/testsuite/gas/mips/gotpc-aluipc-32.s b/gas/testsuite/gas/mips/gotpc-aluipc-32.s
> new file mode 100644
> index 00000000000..877193313a1
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-aluipc-32.s
> @@ -0,0 +1,51 @@
> + .file 1 "nn.c"
> + .section .mdebug.abi32
> + .previous
> + .nan 2008
> + .module fp=xx
> + .module nooddspreg
> + .module arch=mips32r6
> + .abicalls
> + .text
> + .section .rodata.str1.4,"aMS",@progbits,1
> + .align 2
> +$LC0:
> + .ascii "XXXX\000"
> + .section .text.startup,"ax",@progbits
> + .align 2
> + .globl main
> + .set nomips16
> + .ent main
> + .type main, @function
> +main:
> + .frame $sp,32,$31 # vars= 0, regs= 1/0, args= 16, gp= 8
> + .mask 0x80000000,-4
> + .fmask 0x00000000,0
> + .set noreorder
> + .cpload $25
> + .set nomacro
> + addiu $sp,$sp,-32
> + sw $31,28($sp)
> +
> + aluipc $4,%gotpc_ahi($LC0)
> + lw $4,%gotpc_alo($LC0)($4)
> +
> + aluipc $25,%gotpc_call_ahi(puts)
> + lw $25,%gotpc_call_alo(puts)($25)
> +
> + .cprestore 16
> + .reloc 1f,R_MIPS_JALR,puts
> +1: jalr $25
> + nop
> +
> + lw $31,28($sp)
> + move $2,$0
> + jr $31
> + addiu $sp,$sp,32
> +
> + .set macro
> + .set reorder
> + .end main
> + .size main, .-main
> + .ident "GCC: (Debian 12.2.0-14) 12.2.0"
> + .section .note.GNU-stack,"",@progbits
> diff --git a/gas/testsuite/gas/mips/gotpc-aluipc-64.s b/gas/testsuite/gas/mips/gotpc-aluipc-64.s
> new file mode 100644
> index 00000000000..234be37b6fe
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-aluipc-64.s
> @@ -0,0 +1,50 @@
> + .file 1 "nn.c"
> + .section .mdebug.abi64
> + .previous
> + .abicalls
> + .text
> + .section .rodata.str1.8,"aMS",@progbits,1
> + .align 3
> +.LC0:
> + .ascii "XXXX\000"
> + .section .text.startup,"ax",@progbits
> + .align 2
> + .align 3
> + .globl main
> + .set nomips16
> + .ent main
> + .type main, @function
> +main:
> + .frame $sp,16,$31 # vars= 0, regs= 2/0, args= 0, gp= 0
> + .mask 0x90000000,-8
> + .fmask 0x00000000,0
> + .set noreorder
> + .set nomacro
> + daddiu $sp,$sp,-16
> + sd $28,0($sp)
> + lui $28,%hi(%neg(%gp_rel(main)))
> + daddu $28,$28,$25
> + sd $31,8($sp)
> + daddiu $28,$28,%lo(%neg(%gp_rel(main)))
> +
> + aluipc $4,%gotpc_ahi(.LC0)
> + ld $4,%gotpc_alo(.LC0)($4)
> +
> + aluipc $25,%gotpc_call_ahi(puts)
> + ld $25,%gotpc_call_alo(puts)($25)
> +
> + .reloc 1f,R_MIPS_JALR,puts
> +1: jalr $25
> + nop
> +
> + ld $31,8($sp)
> + ld $28,0($sp)
> + move $2,$0
> + jr $31
> + daddiu $sp,$sp,16
> +
> + .set macro
> + .set reorder
> + .end main
> + .size main, .-main
> + .section .note.GNU-stack,"",@progbits
> diff --git a/gas/testsuite/gas/mips/gotpc-aluipc-n32.d b/gas/testsuite/gas/mips/gotpc-aluipc-n32.d
> new file mode 100644
> index 00000000000..41bc6d474d7
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-aluipc-n32.d
> @@ -0,0 +1,17 @@
> +#objdump: -dr --prefix-addresses --show-raw-insn
> +#name: R_MIPS_GOTPC support (NewABI, ALUIPC, N32)
> +#source: gotpc-aluipc-64.s
> +#as: -n32 -mips64r6
> +
> +.*: +file format .*mips.*
> +
> +Disassembly of section \.text\.startup:
> +#...
> +.*R_MIPS_GOTPC_AHI16 \.rodata\.str1\.8
> +#...
> +.*R_MIPS_GOTPC_ALO16 \.rodata\.str1\.8
> +#...
> +.*R_MIPS_GOTPC_CALL_AHI16 puts
> +#...
> +.*R_MIPS_GOTPC_CALL_ALO16 puts
> +#pass
> diff --git a/gas/testsuite/gas/mips/gotpc-aluipc-n64.d b/gas/testsuite/gas/mips/gotpc-aluipc-n64.d
> new file mode 100644
> index 00000000000..0561040ef09
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-aluipc-n64.d
> @@ -0,0 +1,25 @@
> +#objdump: -dr --prefix-addresses --show-raw-insn
> +#name: R_MIPS_GOTPC support (NewABI, ALUIPC, N64)
> +#source: gotpc-aluipc-64.s
> +#as: -64 -mips64r6
> +
> +.*: +file format .*mips.*
> +
> +Disassembly of section \.text\.startup:
> +#...
> +.*R_MIPS_GOTPC_AHI16 \.LC0
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#...
> +.*R_MIPS_GOTPC_ALO16 \.LC0
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#...
> +.*R_MIPS_GOTPC_CALL_AHI16 puts
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#...
> +.*R_MIPS_GOTPC_CALL_ALO16 puts
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#pass
> diff --git a/gas/testsuite/gas/mips/gotpc-aluipc-o32.d b/gas/testsuite/gas/mips/gotpc-aluipc-o32.d
> new file mode 100644
> index 00000000000..1832061a34e
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-aluipc-o32.d
> @@ -0,0 +1,17 @@
> +#objdump: -dr --prefix-addresses --show-raw-insn
> +#name: R_MIPS_GOTPC support (OldABI, ALUIPC, O32)
> +#source: gotpc-aluipc-32.s
> +#as: -32 -mips32r6
> +
> +.*: +file format .*mips.*
> +
> +Disassembly of section \.text\.startup:
> +#...
> +.*R_MIPS_GOTPC_AHI16 \.rodata\.str1\.4
> +#...
> +.*R_MIPS_GOTPC_ALO16 \.rodata\.str1\.4
> +#...
> +.*R_MIPS_GOTPC_CALL_AHI16 puts
> +#...
> +.*R_MIPS_GOTPC_CALL_ALO16 puts
> +#pass
> diff --git a/gas/testsuite/gas/mips/gotpc-bal-32.s b/gas/testsuite/gas/mips/gotpc-bal-32.s
> new file mode 100644
> index 00000000000..841a13dbf87
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-bal-32.s
> @@ -0,0 +1,55 @@
> + .file 1 "nn.c"
> + .section .mdebug.abi32
> + .previous
> + .nan 2008
> + .module fp=xx
> + .module nooddspreg
> + .module arch=mips32r6
> + .abicalls
> + .text
> + .section .rodata.str1.4,"aMS",@progbits,1
> + .align 2
> +$LC0:
> + .ascii "XXXX\000"
> + .section .text.startup,"ax",@progbits
> + .align 2
> + .globl main
> + .set nomips16
> + .ent main
> + .type main, @function
> +main:
> + .frame $sp,32,$31 # vars= 0, regs= 1/0, args= 16, gp= 8
> + .mask 0x80000000,-4
> + .fmask 0x00000000,0
> + .set noreorder
> + .cpload $25
> + .set nomacro
> + addiu $sp,$sp,-32
> + sw $31,28($sp)
> +
> + bal . + 8
> + lui $4,%gotpc_hi($LC0)
> + addu $4,$4,$31
> + lw $4,%gotpc_lo($LC0)($4)
> +
> + bal . + 8
> + lui $25,%gotpc_call_hi(puts)
> + addu $25,$25,$31
> + lw $25,%gotpc_call_lo(puts)($25)
> +
> + .cprestore 16
> + .reloc 1f,R_MIPS_JALR,puts
> +1: jalr $25
> + nop
> +
> + lw $31,28($sp)
> + move $2,$0
> + jr $31
> + addiu $sp,$sp,32
> +
> + .set macro
> + .set reorder
> + .end main
> + .size main, .-main
> + .ident "GCC: (Debian 12.2.0-14) 12.2.0"
> + .section .note.GNU-stack,"",@progbits
> diff --git a/gas/testsuite/gas/mips/gotpc-bal-64.s b/gas/testsuite/gas/mips/gotpc-bal-64.s
> new file mode 100644
> index 00000000000..c97e6b87af9
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-bal-64.s
> @@ -0,0 +1,54 @@
> + .file 1 "nn.c"
> + .section .mdebug.abi64
> + .previous
> + .abicalls
> + .text
> + .section .rodata.str1.8,"aMS",@progbits,1
> + .align 3
> +.LC0:
> + .ascii "XXXX\000"
> + .section .text.startup,"ax",@progbits
> + .align 2
> + .align 3
> + .globl main
> + .set nomips16
> + .ent main
> + .type main, @function
> +main:
> + .frame $sp,16,$31 # vars= 0, regs= 2/0, args= 0, gp= 0
> + .mask 0x90000000,-8
> + .fmask 0x00000000,0
> + .set noreorder
> + .set nomacro
> + daddiu $sp,$sp,-16
> + sd $28,0($sp)
> + lui $28,%hi(%neg(%gp_rel(main)))
> + daddu $28,$28,$25
> + sd $31,8($sp)
> + daddiu $28,$28,%lo(%neg(%gp_rel(main)))
> +
> + bal . + 8
> + lui $4,%gotpc_hi(.LC0)
> + daddu $4,$4,$31
> + ld $4,%gotpc_lo(.LC0)($4)
> +
> + bal . + 8
> + lui $25,%gotpc_call_hi(puts)
> + daddu $25,$25,$31
> + ld $25,%gotpc_call_lo(puts)($25)
> +
> + .reloc 1f,R_MIPS_JALR,puts
> +1: jalr $25
> + nop
> +
> + ld $31,8($sp)
> + ld $28,0($sp)
> + move $2,$0
> + jr $31
> + daddiu $sp,$sp,16
> +
> + .set macro
> + .set reorder
> + .end main
> + .size main, .-main
> + .section .note.GNU-stack,"",@progbits
> diff --git a/gas/testsuite/gas/mips/gotpc-bal-n32.d b/gas/testsuite/gas/mips/gotpc-bal-n32.d
> new file mode 100644
> index 00000000000..ec412020dc7
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-bal-n32.d
> @@ -0,0 +1,17 @@
> +#objdump: -dr --prefix-addresses --show-raw-insn
> +#name: R_MIPS_GOTPC support (NewABI, BAL, N32)
> +#source: gotpc-bal-64.s
> +#as: -n32 -march=from-abi
> +
> +.*: +file format .*mips.*
> +
> +Disassembly of section \.text\.startup:
> +#...
> +.*R_MIPS_GOTPC_HI16 \.rodata\.str1\.8
> +#...
> +.*R_MIPS_GOTPC_LO16 \.rodata\.str1\.8
> +#...
> +.*R_MIPS_GOTPC_CALL_HI16 puts
> +#...
> +.*R_MIPS_GOTPC_CALL_LO16 puts
> +#pass
> diff --git a/gas/testsuite/gas/mips/gotpc-bal-n64.d b/gas/testsuite/gas/mips/gotpc-bal-n64.d
> new file mode 100644
> index 00000000000..60b9f020f50
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-bal-n64.d
> @@ -0,0 +1,25 @@
> +#objdump: -dr --prefix-addresses --show-raw-insn
> +#name: R_MIPS_GOTPC support (NewABI, BAL, N64)
> +#source: gotpc-bal-64.s
> +#as: -64 -march=from-abi
> +
> +.*: +file format .*mips.*
> +
> +Disassembly of section \.text\.startup:
> +#...
> +.*R_MIPS_GOTPC_HI16 \.rodata\.str1\.8
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#...
> +.*R_MIPS_GOTPC_LO16 \.rodata\.str1\.8
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#...
> +.*R_MIPS_GOTPC_CALL_HI16 puts
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#...
> +.*R_MIPS_GOTPC_CALL_LO16 puts
> +.*R_MIPS_NONE.*
> +.*R_MIPS_NONE.*
> +#pass
> diff --git a/gas/testsuite/gas/mips/gotpc-bal-o32.d b/gas/testsuite/gas/mips/gotpc-bal-o32.d
> new file mode 100644
> index 00000000000..57cb891042a
> --- /dev/null
> +++ b/gas/testsuite/gas/mips/gotpc-bal-o32.d
> @@ -0,0 +1,17 @@
> +#objdump: -dr --prefix-addresses --show-raw-insn
> +#name: R_MIPS_GOTPC support (OldABI, BAL, O32)
> +#source: gotpc-bal-32.s
> +#as: -32 -march=from-abi
> +
> +.*: +file format .*mips.*
> +
> +Disassembly of section \.text\.startup:
> +#...
> +.*R_MIPS_GOTPC_HI16 \.rodata\.str1\.4
> +#...
> +.*R_MIPS_GOTPC_LO16 \.rodata\.str1\.4
> +#...
> +.*R_MIPS_GOTPC_CALL_HI16 puts
> +#...
> +.*R_MIPS_GOTPC_CALL_LO16 puts
> +#pass
> diff --git a/gas/testsuite/gas/mips/mips.exp b/gas/testsuite/gas/mips/mips.exp
> index 2ddbf0c768d..619d04b3bd5 100644
> --- a/gas/testsuite/gas/mips/mips.exp
> +++ b/gas/testsuite/gas/mips/mips.exp
> @@ -1210,7 +1210,15 @@ if { [istarget mips*-*-vxworks*] } {
> run_dump_test "elf-rel-xgot-n32"
> run_dump_test "elf-rel-got-n64"
> run_dump_test "elf-rel-xgot-n64"
> +
> + run_dump_test "gotpc-bal-n64"
> + run_dump_test "gotpc-bal-n32"
> + run_dump_test "gotpc-aluipc-n64"
> + run_dump_test "gotpc-aluipc-n32"
> }
> + run_dump_test "gotpc-bal-o32"
> + run_dump_test "gotpc-aluipc-o32"
> +
> run_dump_test "elf-rel17"
> if $has_newabi {
> run_dump_test "elf-rel18"
> diff --git a/include/elf/mips.h b/include/elf/mips.h
> index 686d5500e02..23e95fe0c45 100644
> --- a/include/elf/mips.h
> +++ b/include/elf/mips.h
> @@ -98,7 +98,15 @@ START_RELOC_NUMBERS (elf_mips_reloc_type)
> RELOC_NUMBER (R_MIPS_PC19_S2, 63)
> RELOC_NUMBER (R_MIPS_PCHI16, 64)
> RELOC_NUMBER (R_MIPS_PCLO16, 65)
> - FAKE_RELOC (R_MIPS_max, 66)
> + RELOC_NUMBER (R_MIPS_GOTPC_HI16, 66)
> + RELOC_NUMBER (R_MIPS_GOTPC_LO16, 67)
> + RELOC_NUMBER (R_MIPS_GOTPC_CALL_HI16, 68)
> + RELOC_NUMBER (R_MIPS_GOTPC_CALL_LO16, 69)
> + RELOC_NUMBER (R_MIPS_GOTPC_AHI16, 70)
> + RELOC_NUMBER (R_MIPS_GOTPC_ALO16, 71)
> + RELOC_NUMBER (R_MIPS_GOTPC_CALL_AHI16, 72)
> + RELOC_NUMBER (R_MIPS_GOTPC_CALL_ALO16, 73)
> + FAKE_RELOC (R_MIPS_max, 74)
> /* These relocs are used for the mips16. */
> FAKE_RELOC (R_MIPS16_min, 100)
> RELOC_NUMBER (R_MIPS16_26, 100)
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-callee.s b/ld/testsuite/ld-mips-elf/gotpc-callee.s
> new file mode 100644
> index 00000000000..4689b66f302
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-callee.s
> @@ -0,0 +1,41 @@
> + .text
> + .set nomips16
> + .set nomicromips
> + .globl c1
> + .ent c1
> + .type c1, @function
> +c1:
> + .set noreorder
> + .set nomacro
> + jr $31
> + li $2,1
> + .set reorder
> + .set macro
> + .end c1
> + .size c1, .-c1
> +
> + .globl c2
> + .ent c2
> + .type c2, @function
> +c2:
> + .set noreorder
> + .set nomacro
> + jr $31
> + li $2,2
> + .set reorder
> + .set macro
> + .end c2
> + .size c2, .-c2
> +
> + .data
> + .globl g1
> + .type g1, @object
> + .size g1, 4
> +g1:
> + .word 0x12345678
> +
> + .globl g2
> + .type g2, @object
> + .size g2, 4
> +g2:
> + .word 0x09abcdef
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-n32.dd b/ld/testsuite/ld-mips-elf/gotpc-n32.dd
> new file mode 100644
> index 00000000000..2c94d04ee27
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-n32.dd
> @@ -0,0 +1,73 @@
> +
> +.*: +file format .*mips.*
> +
> +DYNAMIC SYMBOL TABLE:
> +00000000 g DF .text 00000074 f1
> +00000090 DF \*UND\* 00000000 c1
> +00000004 g DO \*ABS\* 00000004 g2
> +00000080 DF \*UND\* 00000000 c2
> +00000000 g DO \*ABS\* 00000004 g1
> +
> +
> +
> +Disassembly of section .text:
> +
> +00000000 <f1>:
> + 0: 27bdfff0 addiu sp,sp,-16
> + 4: ffbf0008 sd ra,8\(sp\)
> + 8: ffb00000 sd s0,0\(sp\)
> + c: 24100000 li s0,0
> +
> +00000010 <L0\^A>:
> + 10: 04110001 bal 18 <L0\^A\+0x8>
> + 14: 3c190000 lui t9,0x0
> + 18: 033fc821 addu t9,t9,ra
> + 1c: 8f3900a0 lw t9,160\(t9\)
> + 20: 0320f809 jalr t9
> + 24: 00000000 nop
> + 28: 02028021 addu s0,s0,v0
> + 2c: ef3f0000 aluipc t9,0x0
> + 30: 8f3900c0 lw t9,192\(t9\)
> + 34: 0320f809 jalr t9
> + 38: 00000000 nop
> + 3c: 02028021 addu s0,s0,v0
> +
> +00000040 <L0\^A>:
> + 40: 04110001 bal 48 <L0\^A\+0x8>
> + 44: 3c020000 lui v0,0x0
> + 48: 005f1021 addu v0,v0,ra
> + 4c: 8c42007c lw v0,124\(v0\)
> + 50: 00501021 addu v0,v0,s0
> + 54: ec7f0000 aluipc v1,0x0
> + 58: 8c6300bc lw v1,188\(v1\)
> + 5c: 00431021 addu v0,v0,v1
> + 60: dfb00000 ld s0,0\(sp\)
> + 64: dfbf0008 ld ra,8\(sp\)
> + 68: 24420001 addiu v0,v0,1
> + 6c: 03e00009 jr ra
> + 70: 27bd0010 addiu sp,sp,16
> + ...
> +
> +Disassembly of section .MIPS.stubs:
> +
> +00000080 <_MIPS_STUBS_>:
> + 80: 8f998010 lw t9,-32752\(gp\)
> + 84: 03e07825 move t3,ra
> + 88: 0320f809 jalr t9
> + 8c: 24180004 li t8,4
> + 90: 8f998010 lw t9,-32752\(gp\)
> + 94: 03e07825 move t3,ra
> + 98: 0320f809 jalr t9
> + 9c: 24180002 li t8,2
> + ...
> +
> +Disassembly of section .got:
> +
> +000000b0 <.got>:
> + b0: 00000000 nop
> + b4: 80000000 lb zero,0\(zero\)
> + b8: 00000090 .word 0x90
> + bc: 00000004 sllv zero,zero,zero
> + c0: 00000080 sll zero,zero,0x2
> + c4: 00000000 nop
> +#...
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-n32.gd b/ld/testsuite/ld-mips-elf/gotpc-n32.gd
> new file mode 100644
> index 00000000000..33c9b40ab77
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-n32.gd
> @@ -0,0 +1,15 @@
> +
> +Primary GOT:
> + Canonical gp value: 000080a0
> +
> + Reserved entries:
> + Address Access Initial Purpose
> + 000000b0 -32752\(gp\) 00000000 Lazy resolver
> + 000000b4 -32748\(gp\) 80000000 Module pointer \(GNU extension\)
> +
> + Global entries:
> + Address Access Initial Sym.Val. Type Ndx Name
> + 000000b8 -32744\(gp\) 00000090 00000090 FUNC UND c1
> + 000000bc -32740\(gp\) 00000004 00000004 OBJECT ABS g2
> + 000000c0 -32736\(gp\) 00000080 00000080 FUNC UND c2
> + 000000c4 -32732\(gp\) 00000000 00000000 OBJECT ABS g1
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-n32.s b/ld/testsuite/ld-mips-elf/gotpc-n32.s
> new file mode 100644
> index 00000000000..ce4f4af87f1
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-n32.s
> @@ -0,0 +1,46 @@
> + .text
> + .globl f1
> + .set nomips16
> + .set nomicromips
> + .ent f1
> + .type f1, @function
> +f1:
> + .set noreorder
> + .set nomacro
> + addiu $sp,$sp,-16
> + sd $31,8($sp)
> + sd $16,0($sp)
> + li $16,0
> +
> + bal . + 8
> + lui $25,%gotpc_call_hi(c1)
> + addu $25,$25,$31
> + lw $25,%gotpc_call_lo(c1)($25)
> + jalr $25
> + nop
> + addu $16,$16,$2
> + aluipc $25,%gotpc_call_ahi(c2)
> + lw $25,%gotpc_call_alo(c2)($25)
> + jalr $25
> + nop
> + addu $16,$16,$2
> +
> + bal . + 8
> + lui $2,%gotpc_hi(g1)
> + addu $2,$2,$31
> + lw $2,%gotpc_lo(g1)($2)
> + addu $2,$2,$16
> + aluipc $3,%gotpc_ahi(g2)
> + lw $3,%gotpc_alo(g2)($3)
> + addu $2,$2,$3
> +
> + ld $16,0($sp)
> + ld $31,8($sp)
> + addiu $2,$2,1
> + jr $31
> + addiu $sp,$sp,16
> +
> + .set macro
> + .set reorder
> + .end f1
> + .size f1, .-f1
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-n64.dd b/ld/testsuite/ld-mips-elf/gotpc-n64.dd
> new file mode 100644
> index 00000000000..08e8e2b48a1
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-n64.dd
> @@ -0,0 +1,75 @@
> +
> +.*: +file format .*mips.*
> +
> +DYNAMIC SYMBOL TABLE:
> +0000000000000000 g DF .text 0000000000000074 f1
> +0000000000000090 DF \*UND\* 0000000000000000 c1
> +0000000000000004 g DO \*ABS\* 0000000000000004 g2
> +0000000000000080 DF \*UND\* 0000000000000000 c2
> +0000000000000000 g DO \*ABS\* 0000000000000004 g1
> +
> +
> +
> +Disassembly of section .text:
> +
> +0000000000000000 <f1>:
> + 0: 67bdfff0 daddiu sp,sp,-16
> + 4: ffbf0008 sd ra,8\(sp\)
> + 8: ffb00000 sd s0,0\(sp\)
> + c: 24100000 li s0,0
> +
> +0000000000000010 <L0\^A>:
> + 10: 04110001 bal 18 <L0\^A\+0x8>
> + 14: 3c190000 lui t9,0x0
> + 18: 033fc82d daddu t9,t9,ra
> + 1c: df3900a8 ld t9,168\(t9\)
> + 20: 0320f809 jalr t9
> + 24: 00000000 nop
> + 28: 02028021 addu s0,s0,v0
> + 2c: ef3f0000 aluipc t9,0x0
> + 30: df3900d0 ld t9,208\(t9\)
> + 34: 0320f809 jalr t9
> + 38: 00000000 nop
> + 3c: 02028021 addu s0,s0,v0
> +
> +0000000000000040 <L0\^A>:
> + 40: 04110001 bal 48 <L0\^A\+0x8>
> + 44: 3c020000 lui v0,0x0
> + 48: 005f102d daddu v0,v0,ra
> + 4c: 8c420090 lw v0,144\(v0\)
> + 50: 00501021 addu v0,v0,s0
> + 54: ec7f0000 aluipc v1,0x0
> + 58: 8c6300c8 lw v1,200\(v1\)
> + 5c: 00431021 addu v0,v0,v1
> + 60: dfb00000 ld s0,0\(sp\)
> + 64: dfbf0008 ld ra,8\(sp\)
> + 68: 24420001 addiu v0,v0,1
> + 6c: 03e00009 jr ra
> + 70: 67bd0010 daddiu sp,sp,16
> + ...
> +
> +Disassembly of section .MIPS.stubs:
> +
> +0000000000000080 <_MIPS_STUBS_>:
> + 80: df998010 ld t9,-32752\(gp\)
> + 84: 03e07825 move t3,ra
> + 88: 0320f809 jalr t9
> + 8c: 64180004 daddiu t8,zero,4
> + 90: df998010 ld t9,-32752\(gp\)
> + 94: 03e07825 move t3,ra
> + 98: 0320f809 jalr t9
> + 9c: 64180002 daddiu t8,zero,2
> + ...
> +
> +Disassembly of section .got:
> +
> +00000000000000b0 <.got>:
> + ...
> + bc: 80000000 lb zero,0\(zero\)
> + c0: 00000090 .word 0x90
> + c4: 00000000 nop
> + c8: 00000004 sllv zero,zero,zero
> + cc: 00000000 nop
> + d0: 00000080 sll zero,zero,0x2
> + ...
> +#...
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-n64.gd b/ld/testsuite/ld-mips-elf/gotpc-n64.gd
> new file mode 100644
> index 00000000000..c08cca49ba4
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-n64.gd
> @@ -0,0 +1,15 @@
> +
> +Primary GOT:
> + Canonical gp value: 00000000000080a0
> +
> + Reserved entries:
> + Address Access Initial Purpose
> + 00000000000000b0 -32752\(gp\) 0000000000000000 Lazy resolver
> + 00000000000000b8 -32744\(gp\) 8000000000000000 Module pointer \(GNU extension\)
> +
> + Global entries:
> + Address Access Initial Sym.Val. Type Ndx Name
> + 00000000000000c0 -32736\(gp\) 0000000000000090 0000000000000090 FUNC UND c1
> + 00000000000000c8 -32728\(gp\) 0000000000000004 0000000000000004 OBJECT ABS g2
> + 00000000000000d0 -32720\(gp\) 0000000000000080 0000000000000080 FUNC UND c2
> + 00000000000000d8 -32712\(gp\) 0000000000000000 0000000000000000 OBJECT ABS g1
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-n64.s b/ld/testsuite/ld-mips-elf/gotpc-n64.s
> new file mode 100644
> index 00000000000..47dbd40af2b
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-n64.s
> @@ -0,0 +1,46 @@
> + .text
> + .globl f1
> + .set nomips16
> + .set nomicromips
> + .ent f1
> + .type f1, @function
> +f1:
> + .set noreorder
> + .set nomacro
> + daddiu $sp,$sp,-16
> + sd $31,8($sp)
> + sd $16,0($sp)
> + li $16,0
> +
> + bal . + 8
> + lui $25,%gotpc_call_hi(c1)
> + daddu $25,$25,$31
> + ld $25,%gotpc_call_lo(c1)($25)
> + jalr $25
> + nop
> + addu $16,$16,$2
> + aluipc $25,%gotpc_call_ahi(c2)
> + ld $25,%gotpc_call_alo(c2)($25)
> + jalr $25
> + nop
> + addu $16,$16,$2
> +
> + bal . + 8
> + lui $2,%gotpc_hi(g1)
> + daddu $2,$2,$31
> + lw $2,%gotpc_lo(g1)($2)
> + addu $2,$2,$16
> + aluipc $3,%gotpc_ahi(g2)
> + lw $3,%gotpc_alo(g2)($3)
> + addu $2,$2,$3
> +
> + ld $16,0($sp)
> + ld $31,8($sp)
> + addiu $2,$2,1
> + jr $31
> + daddiu $sp,$sp,16
> +
> + .set macro
> + .set reorder
> + .end f1
> + .size f1, .-f1
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-o32.dd b/ld/testsuite/ld-mips-elf/gotpc-o32.dd
> new file mode 100644
> index 00000000000..1c77b059ef6
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-o32.dd
> @@ -0,0 +1,71 @@
> +
> +.*: +file format .*mips.*
> +
> +DYNAMIC SYMBOL TABLE:
> +00000000 g DF .text 00000070 f1
> +00000080 DF \*UND\* 00000000 c1
> +00000004 g DO \*ABS\* 00000004 g2
> +00000070 DF \*UND\* 00000000 c2
> +00000000 g DO \*ABS\* 00000004 g1
> +
> +
> +
> +Disassembly of section .text:
> +
> +00000000 <f1>:
> + 0: 27bdffe0 addiu sp,sp,-32
> + 4: afbf001c sw ra,28\(sp\)
> + 8: afb00018 sw s0,24\(sp\)
> + c: 24100000 li s0,0
> +
> +00000010 <L0\^A>:
> + 10: 04110001 bal 18 <L0\^A\+0x8>
> + 14: 3c190000 lui t9,0x0
> + 18: 033fc821 addu t9,t9,ra
> + 1c: 8f390090 lw t9,144\(t9\)
> + 20: 0320f809 jalr t9
> + 24: 00000000 nop
> + 28: 02028021 addu s0,s0,v0
> + 2c: ef3f0000 aluipc t9,0x0
> + 30: 8f3900b0 lw t9,176\(t9\)
> + 34: 0320f809 jalr t9
> + 38: 00000000 nop
> + 3c: 02028021 addu s0,s0,v0
> +
> +00000040 <L0\^A>:
> + 40: 04110001 bal 48 <L0\^A\+0x8>
> + 44: 3c020000 lui v0,0x0
> + 48: 005f1021 addu v0,v0,ra
> + 4c: 8c42006c lw v0,108\(v0\)
> + 50: 00501021 addu v0,v0,s0
> + 54: ec7f0000 aluipc v1,0x0
> + 58: 8c6300ac lw v1,172\(v1\)
> + 5c: 00431021 addu v0,v0,v1
> + 60: 8fb00018 lw s0,24\(sp\)
> + 64: 8fbf001c lw ra,28\(sp\)
> + 68: 03e00009 jr ra
> + 6c: 27bd0020 addiu sp,sp,32
> +
> +Disassembly of section .MIPS.stubs:
> +
> +00000070 <_MIPS_STUBS_>:
> + 70: 8f998010 lw t9,-32752\(gp\)
> + 74: 03e07825 move t7,ra
> + 78: 0320f809 jalr t9
> + 7c: 24180004 li t8,4
> + 80: 8f998010 lw t9,-32752\(gp\)
> + 84: 03e07825 move t7,ra
> + 88: 0320f809 jalr t9
> + 8c: 24180002 li t8,2
> + ...
> +
> +Disassembly of section .got:
> +
> +000000a0 <.got>:
> + a0: 00000000 nop
> + a4: 80000000 lb zero,0\(zero\)
> + a8: 00000080 sll zero,zero,0x2
> + ac: 00000004 sllv zero,zero,zero
> + b0: 00000070 tge zero,zero,0x1
> + b4: 00000000 nop
> +#...
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-o32.gd b/ld/testsuite/ld-mips-elf/gotpc-o32.gd
> new file mode 100644
> index 00000000000..7a479237a22
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-o32.gd
> @@ -0,0 +1,15 @@
> +
> +Primary GOT:
> + Canonical gp value: 00008090
> +
> + Reserved entries:
> + Address Access Initial Purpose
> + 000000a0 -32752\(gp\) 00000000 Lazy resolver
> + 000000a4 -32748\(gp\) 80000000 Module pointer \(GNU extension\)
> +
> + Global entries:
> + Address Access Initial Sym.Val. Type Ndx Name
> + 000000a8 -32744\(gp\) 00000080 00000080 FUNC UND c1
> + 000000ac -32740\(gp\) 00000004 00000004 OBJECT ABS g2
> + 000000b0 -32736\(gp\) 00000070 00000070 FUNC UND c2
> + 000000b4 -32732\(gp\) 00000000 00000000 OBJECT ABS g1
> diff --git a/ld/testsuite/ld-mips-elf/gotpc-o32.s b/ld/testsuite/ld-mips-elf/gotpc-o32.s
> new file mode 100644
> index 00000000000..3ac3b650aa1
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc-o32.s
> @@ -0,0 +1,45 @@
> + .text
> + .globl f1
> + .set nomips16
> + .set nomicromips
> + .ent f1
> + .type f1, @function
> +f1:
> + .set noreorder
> + .set nomacro
> + addiu $sp,$sp,-32
> + sw $31,28($sp)
> + sw $16,24($sp)
> + li $16,0
> +
> + bal . + 8
> + lui $25,%gotpc_call_hi(c1)
> + addu $25,$25,$31
> + lw $25,%gotpc_call_lo(c1)($25)
> + jalr $25
> + nop
> + addu $16,$16,$2
> + aluipc $25,%gotpc_call_ahi(c2)
> + lw $25,%gotpc_call_alo(c2)($25)
> + jalr $25
> + nop
> + addu $16,$16,$2
> +
> + bal . + 8
> + lui $2,%gotpc_hi(g1)
> + addu $2,$2,$31
> + lw $2,%gotpc_lo(g1)($2)
> + addu $2,$2,$16
> + aluipc $3,%gotpc_ahi(g2)
> + lw $3,%gotpc_alo(g2)($3)
> + addu $2,$2,$3
> +
> + lw $16,24($sp)
> + lw $31,28($sp)
> + jr $31
> + addiu $sp,$sp,32
> +
> + .set macro
> + .set reorder
> + .end f1
> + .size f1, .-f1
> diff --git a/ld/testsuite/ld-mips-elf/gotpc.ld b/ld/testsuite/ld-mips-elf/gotpc.ld
> new file mode 100644
> index 00000000000..3dadc7e6d4d
> --- /dev/null
> +++ b/ld/testsuite/ld-mips-elf/gotpc.ld
> @@ -0,0 +1,17 @@
> +ENTRY (foo);
> +SECTIONS
> +{
> + .text : { *(.text) }
> + .MIPS.stubs : { *(.MIPS.stubs) }
> + HIDDEN (_gp = ALIGN(16) + 0x7ff0);
> + .got : { *(.got) }
> + .dynamic : { *(.dynamic) }
> + .hash : { *(.hash) }
> + .dynsym : { *(.dynsym) }
> + .dynstr : { *(.dynstr) }
> + .pdr : { *(.pdr) }
> + .shstrtab : { *(.shstrtab) }
> + .symtab : { *(.symtab) }
> + .strtab : { *(.strtab) }
> + /DISCARD/ : { *(*) }
> +}
> diff --git a/ld/testsuite/ld-mips-elf/mips-elf.exp b/ld/testsuite/ld-mips-elf/mips-elf.exp
> index 50af78d1430..550f373efdc 100644
> --- a/ld/testsuite/ld-mips-elf/mips-elf.exp
> +++ b/ld/testsuite/ld-mips-elf/mips-elf.exp
> @@ -719,6 +719,29 @@ if { $linux_gnu } {
> "readelf --relocs gp-hidden${suff64}.rd" \
> "readelf --syms gp-hidden.sd"] \
> "gp-hidden-${abi}"]]
> +
> + set gotpc_asflags [regsub -- {-march=[^[:blank:]]*} $abi_asflags($abi) {}]
> + run_ld_link_tests [list \
> + [list \
> + "MIPS R_MIPS_GOTPC support (Prepare, $abi)" \
> + "$abi_ldflags($abi) -shared -T gotpc.ld" \
> + "" \
> + "$gotpc_asflags -mips64r6 -KPIC" \
> + [list gotpc-callee.s] \
> + "" \
> + "libgotpc-callee-${abi}.so"]]
> + run_ld_link_tests [list \
> + [list \
> + "MIPS R_MIPS_GOTPC support ($abi)" \
> + "$abi_ldflags($abi) -shared -T gotpc.ld \
> + -Ltmpdir -lgotpc-callee-${abi}" \
> + "" \
> + "$gotpc_asflags -mips64r6 -KPIC" \
> + [list gotpc-${abi}.s] \
> + [list \
> + "objdump -DTC gotpc-${abi}.dd" \
> + "readelf -A gotpc-${abi}.gd"] \
> + "gotpc-${abi}.so"]]
> }
> }
>
> --
> 2.39.2
>
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