/* PowerPC-specific support for 32-bit ELF
- Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1994-2015 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#include "elf/ppc.h"
#include "elf32-ppc.h"
#include "elf-vxworks.h"
+#include "dwarf2.h"
+#include "elf-linux-psinfo.h"
+
+typedef enum split16_format_type
+{
+ split16a_type = 0,
+ split16d_type
+}
+split16_format_type;
/* RELA relocations are used here. */
#define ADD_3_12_2 0x7c6c1214
#define ADD_11_0_11 0x7d605a14
#define B 0x48000000
+#define BA 0x48000002
#define BCL_20_31 0x429f0005
#define BCTR 0x4e800420
#define BEQLR 0x4d820020
/* This reloc does nothing. */
HOWTO (R_PPC_NONE, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_NONE", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR32", /* name */
FALSE, /* partial_inplace */
26, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR24", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR14", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR14_BRTAKEN",/* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR14_BRNTAKEN",/* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_GOT16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
ppc_elf_addr16_ha_reloc, /* special_function */
"R_PPC_GOT16_HA", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_COPY", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_GLOB_DAT", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_JMP_SLOT", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_RELATIVE", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_UADDR32", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_REL32", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_PLT32", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_PLTREL32", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_PLT16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
ppc_elf_addr16_ha_reloc, /* special_function */
"R_PPC_PLT16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_SECTOFF", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_SECTOFF_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
ppc_elf_addr16_ha_reloc, /* special_function */
"R_PPC_SECTOFF_HA", /* name */
FALSE, /* partial_inplace */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_NADDR32", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_NADDR16", /* name */
FALSE, /* partial_inplace */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
+ /* A relative 8 bit branch. */
+ HOWTO (R_PPC_VLE_REL8, /* type */
+ 1, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_REL8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A relative 15 bit branch. */
+ HOWTO (R_PPC_VLE_REL15, /* type */
+ 1, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ TRUE, /* pc_relative */
+ 1, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_REL15", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfe, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A relative 24 bit branch. */
+ HOWTO (R_PPC_VLE_REL24, /* type */
+ 1, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 24, /* bitsize */
+ TRUE, /* pc_relative */
+ 1, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_REL24", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1fffffe, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* The 16 LSBS in split16a format. */
+ HOWTO (R_PPC_VLE_LO16A, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_LO16A", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f007ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The 16 LSBS in split16d format. */
+ HOWTO (R_PPC_VLE_LO16D, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_LO16D", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 split16a format. */
+ HOWTO (R_PPC_VLE_HI16A, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_HI16A", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f007ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 split16d format. */
+ HOWTO (R_PPC_VLE_HI16D, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_HI16D", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 (High Adjusted) in split16a format. */
+ HOWTO (R_PPC_VLE_HA16A, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_HA16A", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f007ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 (High Adjusted) in split16d format. */
+ HOWTO (R_PPC_VLE_HA16D, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_HA16D", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
+ instructions. If the register base is 0 then the linker changes
+ the e_add16i to an e_li instruction. */
+ HOWTO (R_PPC_VLE_SDA21, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDA21", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_PPC_VLE_SDA21 but ignore overflow. */
+ HOWTO (R_PPC_VLE_SDA21_LO, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDA21_LO", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
+ HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDAREL_LO16A", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f007ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
+ HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDAREL_LO16D", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
+ HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDAREL_HI16A", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f007ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
+ HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDAREL_HI16D", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
+ HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDAREL_HA16A", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f007ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
+ HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_VLE_SDAREL_HA16D", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f07ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
HOWTO (R_PPC_IRELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_IRELATIVE", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_REL16", /* name */
FALSE, /* partial_inplace */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
};
+
+/* External 32-bit PPC structure for PRPSINFO. This structure is
+ ABI-defined, thus we choose to use char arrays here in order to
+ avoid dealing with different types in different architectures.
+
+ The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
+ most non-PPC architectures use `short int'.
+
+ This structure will ultimately be written in the corefile's note
+ section, as the PRPSINFO. */
+
+struct elf_external_ppc_linux_prpsinfo32
+ {
+ char pr_state; /* Numeric process state. */
+ char pr_sname; /* Char for pr_state. */
+ char pr_zomb; /* Zombie. */
+ char pr_nice; /* Nice val. */
+ char pr_flag[4]; /* Flags. */
+ char pr_uid[4];
+ char pr_gid[4];
+ char pr_pid[4];
+ char pr_ppid[4];
+ char pr_pgrp[4];
+ char pr_sid[4];
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[80]; /* Initial part of arg list. */
+ };
+
+/* Helper macro to swap (properly handling endianess) things from the
+ `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
+ structure.
+
+ Note that FROM should be a pointer, and TO should be the explicit type. */
+
+#define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \
+ do \
+ { \
+ H_PUT_8 (abfd, from->pr_state, &to.pr_state); \
+ H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \
+ H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \
+ H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \
+ H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \
+ H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \
+ H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \
+ H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \
+ H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \
+ H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \
+ H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \
+ strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \
+ strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
+ } while (0)
+
\f
/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
case BFD_RELOC_NONE: r = R_PPC_NONE; break;
case BFD_RELOC_32: r = R_PPC_ADDR32; break;
case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
+ case BFD_RELOC_PPC64_ADDR16_DS:
case BFD_RELOC_16: r = R_PPC_ADDR16; break;
+ case BFD_RELOC_PPC64_ADDR16_LO_DS:
case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
+ case BFD_RELOC_PPC64_GOT16_DS:
case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
+ case BFD_RELOC_PPC64_GOT16_LO_DS:
case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
+ case BFD_RELOC_PPC64_PLT16_LO_DS:
case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
+ case BFD_RELOC_PPC64_SECTOFF_DS:
case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
+ case BFD_RELOC_PPC64_SECTOFF_LO_DS:
case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
+ case BFD_RELOC_PPC64_TOC16_DS:
case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
+ case BFD_RELOC_PPC64_TPREL16_DS:
case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
+ case BFD_RELOC_PPC64_TPREL16_LO_DS:
case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
+ case BFD_RELOC_PPC64_DTPREL16_DS:
case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
+ case BFD_RELOC_PPC64_DTPREL16_LO_DS:
case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
+ case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
+ case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
+ case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
+ case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
+ case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
+ case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
+ case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
+ case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
+ case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
+ case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
+ case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
+ case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
+ r = R_PPC_VLE_SDAREL_LO16A;
+ break;
+ case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
+ r = R_PPC_VLE_SDAREL_LO16D;
+ break;
+ case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
+ r = R_PPC_VLE_SDAREL_HI16A;
+ break;
+ case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
+ r = R_PPC_VLE_SDAREL_HI16D;
+ break;
+ case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
+ r = R_PPC_VLE_SDAREL_HA16A;
+ break;
+ case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
+ r = R_PPC_VLE_SDAREL_HA16D;
+ break;
case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
+ unsigned int r_type;
+
/* Initialize howto table if not already done. */
if (!ppc_elf_howto_table[R_PPC_ADDR32])
ppc_elf_howto_init ();
- BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
- cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
+ r_type = ELF32_R_TYPE (dst->r_info);
+ if (r_type >= R_PPC_max)
+ {
+ (*_bfd_error_handler) (_("%B: unrecognised PPC reloc number: %d"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ r_type = R_PPC_NONE;
+ }
+ cache_ptr->howto = ppc_elf_howto_table[r_type];
/* Just because the above assert didn't trigger doesn't mean that
ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
if (!cache_ptr->howto)
{
(*_bfd_error_handler) (_("%B: invalid relocation type %d"),
- abfd, ELF32_R_TYPE (dst->r_info));
+ abfd, r_type);
bfd_set_error (bfd_error_bad_value);
cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
return bfd_reloc_ok;
}
- if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
- return bfd_reloc_outofrange;
-
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
case 268: /* Linux/PPC. */
/* pr_cursig */
- elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
- elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
+ elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
/* pr_reg */
offset = 72;
return FALSE;
case 128: /* Linux/PPC elf_prpsinfo. */
- elf_tdata (abfd)->core_program
+ elf_tdata (abfd)->core->pid
+ = bfd_get_32 (abfd, note->descdata + 16);
+ elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
}
implementations, so strip it off if it exists. */
{
- char *command = elf_tdata (abfd)->core_command;
+ char *command = elf_tdata (abfd)->core->command;
int n = strlen (command);
if (0 < n && command[n - 1] == ' ')
return TRUE;
}
+char *
+elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
+ const struct elf_internal_linux_prpsinfo *prpsinfo)
+{
+ struct elf_external_ppc_linux_prpsinfo32 data;
+
+ memset (&data, 0, sizeof (data));
+ PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
+
+ return elfcore_write_note (abfd, buf, bufsiz,
+ "CORE", NT_PRPSINFO, &data, sizeof (data));
+}
+
static char *
ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
{
va_list ap;
va_start (ap, note_type);
- memset (data, 0, 32);
+ memset (data, 0, sizeof (data));
strncpy (data + 32, va_arg (ap, const char *), 16);
strncpy (data + 48, va_arg (ap, const char *), 80);
va_end (ap);
}
}
-/* Return address for Ith PLT stub in section PLT, for relocation REL
+static flagword
+ppc_elf_lookup_section_flags (char *flag_name)
+{
+
+ if (!strcmp (flag_name, "SHF_PPC_VLE"))
+ return SHF_PPC_VLE;
+
+ return 0;
+}
+
+/* Add the VLE flag if required. */
+
+bfd_boolean
+ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
+{
+ if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
+ && (shdr->sh_flags & SHF_EXECINSTR) != 0)
+ shdr->sh_flags |= SHF_PPC_VLE;
+
+ return TRUE;
+}
+
+/* Return address for Ith PLT stub in section PLT, for relocation REL
or (bfd_vma) -1 if it should not be included. */
static bfd_vma
return ret;
}
+/* Modify the segment map for VLE executables. */
+
+bfd_boolean
+ppc_elf_modify_segment_map (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+ struct elf_segment_map *m, *n;
+ bfd_size_type amt;
+ unsigned int j, k;
+ bfd_boolean sect0_vle, sectj_vle;
+
+ /* At this point in the link, output sections have already been sorted by
+ LMA and assigned to segments. All that is left to do is to ensure
+ there is no mixing of VLE & non-VLE sections in a text segment.
+ If we find that case, we split the segment.
+ We maintain the original output section order. */
+
+ for (m = elf_seg_map (abfd); m != NULL; m = m->next)
+ {
+ if (m->count == 0)
+ continue;
+
+ sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
+ for (j = 1; j < m->count; ++j)
+ {
+ sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
+
+ if (sectj_vle != sect0_vle)
+ break;
+ }
+ if (j >= m->count)
+ continue;
+
+ /* sections 0..j-1 stay in this (current) segment,
+ the remainder are put in a new segment.
+ The scan resumes with the new segment. */
+
+ /* Fix the new segment. */
+ amt = sizeof (struct elf_segment_map);
+ amt += (m->count - j - 1) * sizeof (asection *);
+ n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
+ if (n == NULL)
+ return FALSE;
+
+ n->p_type = PT_LOAD;
+ n->p_flags = PF_X | PF_R;
+ if (sectj_vle)
+ n->p_flags |= PF_PPC_VLE;
+ n->count = m->count - j;
+ for (k = 0; k < n->count; ++k)
+ {
+ n->sections[k] = m->sections[j+k];
+ m->sections[j+k] = NULL;
+ }
+ n->next = m->next;
+ m->next = n;
+
+ /* Fix the current segment */
+ m->count = j;
+ }
+
+ return TRUE;
+}
+
/* Add extra PPC sections -- Note, for now, make .sbss2 and
.PPC.EMB.sbss0 a normal section, and not a bss section so
that the linker doesn't crater when trying to make more than
apuinfo_list_init ();
/* Read in the input sections contents. */
- for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
{
unsigned long datum;
}
count = relplt->size / sizeof (Elf32_External_Rela);
- stub_vma = glink_vma - (bfd_vma) count * 16;
/* If the stubs are those for -shared/-pie then we might have
multiple stubs for each plt entry. If that is the case then
there is no way to associate stubs with their plt entries short
if (s == NULL)
return -1;
+ stub_vma = glink_vma;
names = (char *) (s + count + 1 + (resolv_vma != 0));
- p = relplt->relocation;
- for (i = 0; i < count; i++, p++)
+ p = relplt->relocation + count - 1;
+ for (i = 0; i < count; i++)
{
size_t len;
s->flags |= BSF_GLOBAL;
s->flags |= BSF_SYNTHETIC;
s->section = glink;
+ stub_vma -= 16;
+ if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
+ stub_vma -= 32;
s->value = stub_vma - glink->vma;
s->name = names;
s->udata.p = NULL;
memcpy (names, "@plt", sizeof ("@plt"));
names += sizeof ("@plt");
++s;
- stub_vma += 16;
+ --p;
}
/* Add a symbol at the start of the glink branch table. */
ppc_elf_finish_dynamic_sections is one of the last functions
called. */
-/* The PPC linker needs to keep track of the number of relocs that it
- decides to copy as dynamic relocs in check_relocs for each symbol.
- This is so that it can later discard them if they are found to be
- unnecessary. We store the information in a field extending the
- regular ELF linker hash table. */
-
-struct ppc_elf_dyn_relocs
-{
- struct ppc_elf_dyn_relocs *next;
-
- /* The input section of the reloc. */
- asection *sec;
-
- /* Total number of relocs copied for the input section. */
- bfd_size_type count;
-
- /* Number of pc-relative relocs copied for the input section. */
- bfd_size_type pc_count;
-};
-
/* Track PLT entries needed for a given symbol. We might need more
than one glink entry per symbol when generating a pic binary. */
struct plt_entry
shared lib. */
#define ELIMINATE_COPY_RELOCS 1
+/* Used to track dynamic relocations for local symbols. */
+struct ppc_dyn_relocs
+{
+ struct ppc_dyn_relocs *next;
+
+ /* The input section of the reloc. */
+ asection *sec;
+
+ /* Total number of relocs copied for the input section. */
+ unsigned int count : 31;
+
+ /* Whether this entry is for STT_GNU_IFUNC symbols. */
+ unsigned int ifunc : 1;
+};
+
/* PPC ELF linker hash entry. */
struct ppc_elf_link_hash_entry
elf_linker_section_pointers_t *linker_section_pointer;
/* Track dynamic relocs copied for this symbol. */
- struct ppc_elf_dyn_relocs *dyn_relocs;
+ struct elf_dyn_relocs *dyn_relocs;
/* Contexts in which symbol is used in the GOT (or TOC).
TLS_GD .. TLS_TLS bits are or'd into the mask as the
{
struct elf_link_hash_table elf;
+ /* Various options passed from the linker. */
+ struct ppc_elf_params *params;
+
/* Short-cuts to get to dynamic linker sections. */
asection *got;
asection *relgot;
asection *relsbss;
elf_linker_section_t sdata[2];
asection *sbss;
+ asection *glink_eh_frame;
/* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
asection *srelplt2;
/* The type of PLT we have chosen to use. */
enum ppc_elf_plt_type plt_type;
- /* Set if we should emit symbols for stubs. */
- unsigned int emit_stub_syms:1;
-
- /* Set if __tls_get_addr optimization should not be done. */
- unsigned int no_tls_get_addr_opt:1;
-
/* True if the target system is VxWorks. */
unsigned int is_vxworks:1;
};
/* Rename some of the generic section flags to better document how they
- are used here. */
+ are used for ppc32. The flags are only valid for ppc32 elf objects. */
/* Nonzero if this section has TLS related relocations. */
#define has_tls_reloc sec_flg0
ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
ppc_elf_hash_entry (entry)->tls_mask = 0;
+ ppc_elf_hash_entry (entry)->has_sda_refs = 0;
}
return entry;
ppc_elf_link_hash_table_create (bfd *abfd)
{
struct ppc_elf_link_hash_table *ret;
+ static struct ppc_elf_params default_params = { PLT_OLD, 0, 1, 0, 0, 12 };
ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
if (ret == NULL)
ret->elf.init_plt_offset.offset = 0;
ret->elf.init_plt_offset.glist = NULL;
+ ret->params = &default_params;
+
ret->sdata[0].name = ".sdata";
ret->sdata[0].sym_name = "_SDA_BASE_";
ret->sdata[0].bss_name = ".sbss";
return &ret->elf.root;
}
+/* Hook linker params into hash table. */
+
+void
+ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
+{
+ struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
+
+ if (htab)
+ htab->params = params;
+}
+
/* Create .got and the related sections. */
static bfd_boolean
return FALSE;
htab = ppc_elf_hash_table (info);
- htab->got = s = bfd_get_section_by_name (abfd, ".got");
+ htab->got = s = bfd_get_linker_section (abfd, ".got");
if (s == NULL)
abort ();
if (htab->is_vxworks)
{
- htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
+ htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
if (!htab->sgotplt)
abort ();
}
return FALSE;
}
- htab->relgot = bfd_get_section_by_name (abfd, ".rela.got");
+ htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
if (!htab->relgot)
abort ();
return TRUE;
}
+/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
+ R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
+ and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
+
+static bfd_boolean
+ppc_elf_create_linker_section (bfd *abfd,
+ struct bfd_link_info *info,
+ flagword flags,
+ elf_linker_section_t *lsect)
+{
+ asection *s;
+
+ flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+
+ s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
+ if (s == NULL)
+ return FALSE;
+ lsect->section = s;
+
+ /* Define the sym on the first section of this name. */
+ s = bfd_get_section_by_name (abfd, lsect->name);
+
+ lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
+ if (lsect->sym == NULL)
+ return FALSE;
+ lsect->sym->root.u.def.value = 0x8000;
+ return TRUE;
+}
+
static bfd_boolean
ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
{
s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
htab->glink = s;
if (s == NULL
- || !bfd_set_section_alignment (abfd, s, 4))
+ || !bfd_set_section_alignment (abfd, s,
+ htab->params->ppc476_workaround ? 6 : 4))
return FALSE;
+ if (!info->no_ld_generated_unwind_info)
+ {
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
+ htab->glink_eh_frame = s;
+ if (s == NULL
+ || !bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+ }
+
flags = SEC_ALLOC | SEC_LINKER_CREATED;
s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
htab->iplt = s;
flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
- s = bfd_make_section_with_flags (abfd, ".rela.iplt", flags);
+ s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
htab->reliplt = s;
if (s == NULL
|| ! bfd_set_section_alignment (abfd, s, 2))
return FALSE;
+
+ if (!ppc_elf_create_linker_section (abfd, info, 0,
+ &htab->sdata[0]))
+ return FALSE;
+
+ if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
+ &htab->sdata[1]))
+ return FALSE;
+
return TRUE;
}
&& !ppc_elf_create_glink (abfd, info))
return FALSE;
- htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
- s = bfd_make_section_with_flags (abfd, ".dynsbss",
- SEC_ALLOC | SEC_LINKER_CREATED);
+ htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
+ s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
+ SEC_ALLOC | SEC_LINKER_CREATED);
htab->dynsbss = s;
if (s == NULL)
return FALSE;
if (! info->shared)
{
- htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
+ htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
- s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
+ s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
htab->relsbss = s;
if (s == NULL
|| ! bfd_set_section_alignment (abfd, s, 2))
&& !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
return FALSE;
- htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
- htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
+ htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
+ htab->plt = s = bfd_get_linker_section (abfd, ".plt");
if (s == NULL)
abort ();
edir = (struct ppc_elf_link_hash_entry *) dir;
eind = (struct ppc_elf_link_hash_entry *) ind;
+ edir->tls_mask |= eind->tls_mask;
+ edir->has_sda_refs |= eind->has_sda_refs;
+
+ /* If called to transfer flags for a weakdef during processing
+ of elf_adjust_dynamic_symbol, don't copy non_got_ref.
+ We clear it ourselves for ELIMINATE_COPY_RELOCS. */
+ if (!(ELIMINATE_COPY_RELOCS
+ && eind->elf.root.type != bfd_link_hash_indirect
+ && edir->elf.dynamic_adjusted))
+ edir->elf.non_got_ref |= eind->elf.non_got_ref;
+
+ edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
+ edir->elf.ref_regular |= eind->elf.ref_regular;
+ edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
+ edir->elf.needs_plt |= eind->elf.needs_plt;
+ edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
+
if (eind->dyn_relocs != NULL)
{
if (edir->dyn_relocs != NULL)
{
- struct ppc_elf_dyn_relocs **pp;
- struct ppc_elf_dyn_relocs *p;
+ struct elf_dyn_relocs **pp;
+ struct elf_dyn_relocs *p;
/* Add reloc counts against the indirect sym to the direct sym
list. Merge any entries against the same section. */
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
{
- struct ppc_elf_dyn_relocs *q;
+ struct elf_dyn_relocs *q;
for (q = edir->dyn_relocs; q != NULL; q = q->next)
if (q->sec == p->sec)
eind->dyn_relocs = NULL;
}
- edir->tls_mask |= eind->tls_mask;
- edir->has_sda_refs |= eind->has_sda_refs;
-
- /* If called to transfer flags for a weakdef during processing
- of elf_adjust_dynamic_symbol, don't copy non_got_ref.
- We clear it ourselves for ELIMINATE_COPY_RELOCS. */
- if (!(ELIMINATE_COPY_RELOCS
- && eind->elf.root.type != bfd_link_hash_indirect
- && edir->elf.dynamic_adjusted))
- edir->elf.non_got_ref |= eind->elf.non_got_ref;
-
- edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
- edir->elf.ref_regular |= eind->elf.ref_regular;
- edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
- edir->elf.needs_plt |= eind->elf.needs_plt;
- edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
-
- /* If we were called to copy over info for a weak sym, that's all. */
+ /* If we were called to copy over info for a weak sym, that's all.
+ You might think dyn_relocs need not be copied over; After all,
+ both syms will be dynamic or both non-dynamic so we're just
+ moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
+ code in ppc_elf_adjust_dynamic_symbol needs to check for
+ dyn_relocs in read-only sections, and it does so on what is the
+ DIR sym here. */
if (eind->elf.root.type != bfd_link_hash_indirect)
return;
*valp = sym->st_size;
}
- if ((abfd->flags & DYNAMIC) == 0
- && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
- elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
+ if ((ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
+ || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE)
+ && (abfd->flags & DYNAMIC) == 0
+ && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
+ elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
return TRUE;
}
\f
-static bfd_boolean
-create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
-{
- struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
-
- lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
- TRUE, FALSE, TRUE);
- if (lsect->sym == NULL)
- return FALSE;
- if (lsect->sym->root.type == bfd_link_hash_new)
- lsect->sym->non_elf = 0;
- lsect->sym->ref_regular = 1;
- _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
- return TRUE;
-}
-
-/* Create a special linker section. */
-
-static bfd_boolean
-ppc_elf_create_linker_section (bfd *abfd,
- struct bfd_link_info *info,
- flagword flags,
- elf_linker_section_t *lsect)
-{
- struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
- asection *s;
-
- flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
- | SEC_LINKER_CREATED);
-
- /* Record the first bfd that needs the special sections. */
- if (!htab->elf.dynobj)
- htab->elf.dynobj = abfd;
-
- s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
- lsect->name,
- flags);
- if (s == NULL
- || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
- return FALSE;
- lsect->section = s;
-
- return create_sdata_sym (info, lsect);
-}
-
/* Find a linker generated pointer with a given addend and type. */
static elf_linker_section_pointers_t *
/* Allocate a pointer to live in a linker created section. */
static bfd_boolean
-elf_create_pointer_linker_section (bfd *abfd,
- elf_linker_section_t *lsect,
- struct elf_link_hash_entry *h,
- const Elf_Internal_Rela *rel)
+elf_allocate_pointer_linker_section (bfd *abfd,
+ elf_linker_section_t *lsect,
+ struct elf_link_hash_entry *h,
+ const Elf_Internal_Rela *rel)
{
elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
elf_linker_section_pointers_t *linker_section_ptr;
linker_section_ptr->lsect = lsect;
*ptr_linker_section_ptr = linker_section_ptr;
+ if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
+ return FALSE;
linker_section_ptr->offset = lsect->section->size;
lsect->section->size += 4;
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ /* PR15323, ref flags aren't set for references in the same
+ object. */
+ h->root.non_ir_ref = 1;
}
/* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
if (isym == NULL)
return FALSE;
- if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
- && (!info->shared
- || is_branch_reloc (r_type)))
+ if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
{
struct plt_entry **ifunc;
- bfd_vma addend;
+ /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
PLT_IFUNC);
if (ifunc == NULL)
/* STT_GNU_IFUNC symbols must have a PLT entry;
In a non-pie executable even when there are
no plt calls. */
- addend = 0;
- if (r_type == R_PPC_PLTREL24)
+ if (!info->shared
+ || is_branch_reloc (r_type))
{
- ppc_elf_tdata (abfd)->makes_plt_call = 1;
- if (info->shared)
- addend = rel->r_addend;
+ bfd_vma addend = 0;
+ if (r_type == R_PPC_PLTREL24)
+ {
+ ppc_elf_tdata (abfd)->makes_plt_call = 1;
+ if (info->shared)
+ addend = rel->r_addend;
+ }
+ if (!update_plt_info (abfd, ifunc, got2, addend))
+ return FALSE;
}
- if (!update_plt_info (abfd, ifunc, got2, addend))
- return FALSE;
}
}
case R_PPC_GOT_TPREL16_LO:
case R_PPC_GOT_TPREL16_HI:
case R_PPC_GOT_TPREL16_HA:
- if (!info->executable)
+ if (info->shared)
info->flags |= DF_STATIC_TLS;
tls_type = TLS_TLS | TLS_TPREL;
goto dogottls;
bad_shared_reloc (abfd, r_type);
return FALSE;
}
- if (htab->sdata[0].section == NULL
- && !ppc_elf_create_linker_section (abfd, info, 0,
- &htab->sdata[0]))
- return FALSE;
- if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
- h, rel))
+ htab->sdata[0].sym->ref_regular = 1;
+ if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
+ h, rel))
return FALSE;
if (h != NULL)
{
bad_shared_reloc (abfd, r_type);
return FALSE;
}
- if (htab->sdata[1].section == NULL
- && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
- &htab->sdata[1]))
- return FALSE;
- if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
- h, rel))
+ htab->sdata[1].sym->ref_regular = 1;
+ if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
+ h, rel))
return FALSE;
if (h != NULL)
{
break;
case R_PPC_SDAREL16:
- if (htab->sdata[0].sym == NULL
- && !create_sdata_sym (info, &htab->sdata[0]))
- return FALSE;
+ htab->sdata[0].sym->ref_regular = 1;
+ /* Fall thru */
+
+ case R_PPC_VLE_SDAREL_LO16A:
+ case R_PPC_VLE_SDAREL_LO16D:
+ case R_PPC_VLE_SDAREL_HI16A:
+ case R_PPC_VLE_SDAREL_HI16D:
+ case R_PPC_VLE_SDAREL_HA16A:
+ case R_PPC_VLE_SDAREL_HA16D:
if (h != NULL)
{
ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
}
break;
+ case R_PPC_VLE_REL8:
+ case R_PPC_VLE_REL15:
+ case R_PPC_VLE_REL24:
+ case R_PPC_VLE_LO16A:
+ case R_PPC_VLE_LO16D:
+ case R_PPC_VLE_HI16A:
+ case R_PPC_VLE_HI16D:
+ case R_PPC_VLE_HA16A:
+ case R_PPC_VLE_HA16D:
+ break;
+
case R_PPC_EMB_SDA2REL:
if (info->shared)
{
bad_shared_reloc (abfd, r_type);
return FALSE;
}
- if (htab->sdata[1].sym == NULL
- && !create_sdata_sym (info, &htab->sdata[1]))
- return FALSE;
+ htab->sdata[1].sym->ref_regular = 1;
if (h != NULL)
{
ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
}
break;
+ case R_PPC_VLE_SDA21_LO:
+ case R_PPC_VLE_SDA21:
case R_PPC_EMB_SDA21:
case R_PPC_EMB_RELSDA:
if (info->shared)
bad_shared_reloc (abfd, r_type);
return FALSE;
}
- if (htab->sdata[0].sym == NULL
- && !create_sdata_sym (info, &htab->sdata[0]))
- return FALSE;
- if (htab->sdata[1].sym == NULL
- && !create_sdata_sym (info, &htab->sdata[1]))
- return FALSE;
if (h != NULL)
{
ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
{
/* It does not make sense to have a procedure linkage
table entry for a local symbol. */
- (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
- "local symbol"),
- abfd,
- sec,
- (long) rel->r_offset,
- ppc_elf_howto_table[r_type]->name);
+ info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
+ abfd, sec, rel->r_offset,
+ ppc_elf_howto_table[r_type]->name);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
htab->plt_type = PLT_OLD;
htab->old_bfd = abfd;
}
+ if (h != NULL && h->type == STT_GNU_IFUNC)
+ {
+ if (info->shared)
+ {
+ info->callbacks->einfo (_("%P: %H: @local call to ifunc %s\n"),
+ abfd, sec, rel->r_offset,
+ h->root.root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ h->needs_plt = 1;
+ if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
+ return FALSE;
+ }
break;
/* This relocation describes the C++ object vtable hierarchy.
case R_PPC_TPREL16_LO:
case R_PPC_TPREL16_HI:
case R_PPC_TPREL16_HA:
- if (!info->executable)
+ if (info->shared)
info->flags |= DF_STATIC_TLS;
goto dodyn;
if ((info->shared
&& (must_be_dyn_reloc (info, r_type)
|| (h != NULL
- && (! info->symbolic
+ && (!SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
|| !h->def_regular))))
|| (ELIMINATE_COPY_RELOCS
&& (h->root.type == bfd_link_hash_defweak
|| !h->def_regular)))
{
- struct ppc_elf_dyn_relocs *p;
- struct ppc_elf_dyn_relocs **rel_head;
-
#ifdef DEBUG
fprintf (stderr,
"ppc_elf_check_relocs needs to "
relocations we need for this symbol. */
if (h != NULL)
{
+ struct elf_dyn_relocs *p;
+ struct elf_dyn_relocs **rel_head;
+
rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
+ p = *rel_head;
+ if (p == NULL || p->sec != sec)
+ {
+ p = bfd_alloc (htab->elf.dynobj, sizeof *p);
+ if (p == NULL)
+ return FALSE;
+ p->next = *rel_head;
+ *rel_head = p;
+ p->sec = sec;
+ p->count = 0;
+ p->pc_count = 0;
+ }
+ p->count += 1;
+ if (!must_be_dyn_reloc (info, r_type))
+ p->pc_count += 1;
}
else
{
/* Track dynamic relocs needed for local syms too.
We really need local syms available to do this
easily. Oh well. */
+ struct ppc_dyn_relocs *p;
+ struct ppc_dyn_relocs **rel_head;
+ bfd_boolean is_ifunc;
asection *s;
void *vpp;
Elf_Internal_Sym *isym;
s = sec;
vpp = &elf_section_data (s)->local_dynrel;
- rel_head = (struct ppc_elf_dyn_relocs **) vpp;
- }
-
- p = *rel_head;
- if (p == NULL || p->sec != sec)
- {
- p = bfd_alloc (htab->elf.dynobj, sizeof *p);
- if (p == NULL)
- return FALSE;
- p->next = *rel_head;
- *rel_head = p;
- p->sec = sec;
- p->count = 0;
- p->pc_count = 0;
+ rel_head = (struct ppc_dyn_relocs **) vpp;
+ is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
+ p = *rel_head;
+ if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
+ p = p->next;
+ if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
+ {
+ p = bfd_alloc (htab->elf.dynobj, sizeof *p);
+ if (p == NULL)
+ return FALSE;
+ p->next = *rel_head;
+ *rel_head = p;
+ p->sec = sec;
+ p->ifunc = is_ifunc;
+ p->count = 0;
+ }
+ p->count += 1;
}
-
- p->count += 1;
- if (!must_be_dyn_reloc (info, r_type))
- p->pc_count += 1;
}
break;
if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
return TRUE;
- /* Check if we have the same endianess. */
+ /* Check if we have the same endianness. */
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
return FALSE;
return TRUE;
}
+
+static void
+ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc,
+ bfd_vma value,
+ split16_format_type split16_format)
+
+{
+ unsigned int insn, top5;
+
+ insn = bfd_get_32 (output_bfd, loc);
+ top5 = value & 0xf800;
+ top5 = top5 << (split16_format == split16a_type ? 9 : 5);
+ insn |= top5;
+ insn |= value & 0x7ff;
+ bfd_put_32 (output_bfd, insn, loc);
+}
+
\f
/* Choose which PLT scheme to use, and set .plt flags appropriately.
Returns -1 on error, 0 for old PLT, 1 for new PLT. */
int
ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info,
- enum ppc_elf_plt_type plt_style,
- int emit_stub_syms)
+ struct bfd_link_info *info)
{
struct ppc_elf_link_hash_table *htab;
flagword flags;
htab = ppc_elf_hash_table (info);
- htab->emit_stub_syms = emit_stub_syms;
-
if (htab->plt_type == PLT_UNSET)
{
- if (plt_style == PLT_OLD)
+ struct elf_link_hash_entry *h;
+
+ if (htab->params->plt_style == PLT_OLD)
htab->plt_type = PLT_OLD;
+ else if (info->shared
+ && htab->elf.dynamic_sections_created
+ && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
+ FALSE, FALSE, TRUE)) != NULL
+ && (h->type == STT_FUNC
+ || h->needs_plt)
+ && h->ref_regular
+ && !(SYMBOL_CALLS_LOCAL (info, h)
+ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak)))
+ {
+ /* Profiling of shared libs (and pies) is not supported with
+ secure plt, because ppc32 does profiling before a
+ function prologue and a secure plt pic call stubs needs
+ r30 to be set up. */
+ htab->plt_type = PLT_OLD;
+ }
else
{
bfd *ibfd;
- enum ppc_elf_plt_type plt_type = plt_style;
+ enum ppc_elf_plt_type plt_type = htab->params->plt_style;
/* Look through the reloc flags left by ppc_elf_check_relocs.
Use the old style bss plt if a file makes plt calls
--secure-plt and we never see REL16 relocs. */
if (plt_type == PLT_UNSET)
plt_type = PLT_OLD;
- for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
if (is_ppc_elf (ibfd))
{
if (ppc_elf_tdata (ibfd)->has_rel16)
htab->plt_type = plt_type;
}
}
- if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
- info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
+ if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
+ {
+ if (htab->old_bfd != NULL)
+ info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
+ htab->old_bfd);
+ else
+ info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
+ }
BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx >= symtab_hdr->sh_info)
{
- struct ppc_elf_dyn_relocs **pp, *p;
+ struct elf_dyn_relocs **pp, *p;
struct ppc_elf_link_hash_entry *eh;
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
generic ELF tls_setup function. */
asection *
-ppc_elf_tls_setup (bfd *obfd,
- struct bfd_link_info *info,
- int no_tls_get_addr_opt)
+ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
{
struct ppc_elf_link_hash_table *htab;
htab = ppc_elf_hash_table (info);
htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
FALSE, FALSE, TRUE);
- if (!no_tls_get_addr_opt)
+ if (htab->plt_type != PLT_NEW)
+ htab->params->no_tls_get_addr_opt = TRUE;
+
+ if (!htab->params->no_tls_get_addr_opt)
{
struct elf_link_hash_entry *opt, *tga;
opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
}
}
else
- no_tls_get_addr_opt = TRUE;
+ htab->params->no_tls_get_addr_opt = TRUE;
}
- htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
if (htab->plt_type == PLT_NEW
&& htab->plt != NULL
&& htab->plt->output_section != NULL)
return TRUE;
htab = ppc_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
/* Make two passes through the relocs. First time check that tls
relocs involved in setting up a tls_get_addr call are indeed
- followed by such a call. If they are not, exclude them from
- the optimizations done on the second pass. */
+ followed by such a call. If they are not, don't do any tls
+ optimization. On the second pass twiddle tls_mask flags to
+ notify relocate_section that optimization can be done, and
+ adjust got and plt refcounts. */
for (pass = 0; pass < 2; ++pass)
- for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
{
Elf_Internal_Sym *locsyms = NULL;
Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
{
Elf_Internal_Rela *relstart, *rel, *relend;
+ int expecting_tls_get_addr = 0;
/* Read the relocations. */
relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
char *tls_mask;
char tls_set, tls_clear;
bfd_boolean is_local;
- int expecting_tls_get_addr;
bfd_signed_vma *got_count;
r_symndx = ELF32_R_SYM (rel->r_info);
h = (struct elf_link_hash_entry *) h->root.u.i.link;
}
- expecting_tls_get_addr = 0;
is_local = FALSE;
if (h == NULL
|| !h->def_dynamic)
is_local = TRUE;
r_type = ELF32_R_TYPE (rel->r_info);
+ /* If this section has old-style __tls_get_addr calls
+ without marker relocs, then check that each
+ __tls_get_addr call reloc is preceded by a reloc
+ that conceivably belongs to the __tls_get_addr arg
+ setup insn. If we don't find matching arg setup
+ relocs, don't do any tls optimization. */
+ if (pass == 0
+ && sec->has_tls_get_addr_call
+ && h != NULL
+ && h == htab->tls_get_addr
+ && !expecting_tls_get_addr
+ && is_branch_reloc (r_type))
+ {
+ info->callbacks->minfo ("%H __tls_get_addr lost arg, "
+ "TLS optimization disabled\n",
+ ibfd, sec, rel->r_offset);
+ if (elf_section_data (sec)->relocs != relstart)
+ free (relstart);
+ return TRUE;
+ }
+
+ expecting_tls_get_addr = 0;
switch (r_type)
{
case R_PPC_GOT_TLSLD16:
/* Uh oh, we didn't find the expected call. We
could just mark this symbol to exclude it
from tls optimization but it's safer to skip
- the entire section. */
- sec->has_tls_reloc = 0;
- break;
+ the entire optimization. */
+ info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
+ "TLS optimization disabled\n"),
+ ibfd, sec, rel->r_offset);
+ if (elf_section_data (sec)->relocs != relstart)
+ free (relstart);
+ return TRUE;
}
if (expecting_tls_get_addr)
static bfd_boolean
readonly_dynrelocs (struct elf_link_hash_entry *h)
{
- struct ppc_elf_dyn_relocs *p;
+ struct elf_dyn_relocs *p;
for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
{
will go to this object, or will remain undefined. */
h->plt.plist = NULL;
h->needs_plt = 0;
+ h->pointer_equality_needed = 0;
}
else
{
+ /* Taking a function's address in a read/write section
+ doesn't require us to define the function symbol in the
+ executable on a plt call stub. A dynamic reloc can
+ be used instead. */
+ if (h->pointer_equality_needed
+ && h->type != STT_GNU_IFUNC
+ && !htab->is_vxworks
+ && !ppc_elf_hash_entry (h)->has_sda_refs
+ && !readonly_dynrelocs (h))
+ {
+ h->pointer_equality_needed = 0;
+ h->non_got_ref = 0;
+ }
+
/* After adjust_dynamic_symbol, non_got_ref set in the
non-shared case means that we have allocated space in
.dynbss for the symbol and thus dyn_relocs for this
relocations against this symbol to the PLT entry. Allow
dynamic relocs if the reference is weak, and the dynamic
relocs will not cause text relocation. */
- if (!h->ref_regular_nonweak
- && h->non_got_ref
- && h->type != STT_GNU_IFUNC
- && !htab->is_vxworks
- && !ppc_elf_hash_entry (h)->has_sda_refs
- && !readonly_dynrelocs (h))
+ else if (!h->ref_regular_nonweak
+ && h->non_got_ref
+ && h->type != STT_GNU_IFUNC
+ && !htab->is_vxworks
+ && !ppc_elf_hash_entry (h)->has_sda_refs
+ && !readonly_dynrelocs (h))
h->non_got_ref = 0;
}
return TRUE;
if (!h->non_got_ref)
return TRUE;
+ /* If -z nocopyreloc was given, we won't generate them either. */
+ if (info->nocopyreloc)
+ {
+ h->non_got_ref = 0;
+ return TRUE;
+ }
+
/* If we didn't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc.
We can't do this if there are any small data relocations. This
return TRUE;
}
- if (h->size == 0)
+ /* Protected variables do not work with .dynbss. The copy in
+ .dynbss won't be used by the shared library with the protected
+ definition for the variable. Text relocations are preferable
+ to an incorrect program. */
+ if (h->protected_def)
{
- (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
- h->root.root.string);
+ h->non_got_ref = 0;
return TRUE;
}
copy the initial value out of the dynamic object and into the
runtime process image. We need to remember the offset into the
.rela.bss section we are going to use. */
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
asection *srel;
h->needs_copy = 1;
}
- return _bfd_elf_adjust_dynamic_copy (h, s);
+ return _bfd_elf_adjust_dynamic_copy (info, h, s);
}
\f
/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
sh->ref_regular_nonweak = 1;
sh->forced_local = 1;
sh->non_elf = 0;
+ sh->root.linker_def = 1;
}
return TRUE;
}
struct bfd_link_info *info = inf;
struct ppc_elf_link_hash_entry *eh;
struct ppc_elf_link_hash_table *htab;
- struct ppc_elf_dyn_relocs *p;
+ struct elf_dyn_relocs *p;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
- if (h->root.type == bfd_link_hash_warning)
- /* When warning symbols are created, they **replace** the "real"
- entry in the hash table, thus we never get to see the real
- symbol in a hash traversal. So look at it now. */
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
htab = ppc_elf_hash_table (info);
if (htab->elf.dynamic_sections_created
|| h->type == STT_GNU_IFUNC)
glink_offset = s->size;
s->size += GLINK_ENTRY_SIZE;
if (h == htab->tls_get_addr
- && !htab->no_tls_get_addr_opt)
+ && !htab->params->no_tls_get_addr_opt)
s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
}
if (!doneone
}
ent->glink_offset = glink_offset;
- if (htab->emit_stub_syms
+ if (htab->params->emit_stub_syms
&& !add_stub_sym (ent, h, info))
return FALSE;
}
|| eh->elf.root.type != bfd_link_hash_undefweak))
{
asection *rsec = htab->relgot;
+
+ if (eh->elf.type == STT_GNU_IFUNC)
+ rsec = htab->reliplt;
/* All the entries we allocated need relocs.
Except LD only needs one. */
if ((eh->tls_mask & TLS_LD) != 0
then they should avoid writing weird assembly. */
if (SYMBOL_CALLS_LOCAL (info, h))
{
- struct ppc_elf_dyn_relocs **pp;
+ struct elf_dyn_relocs **pp;
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
{
if (htab->is_vxworks)
{
- struct ppc_elf_dyn_relocs **pp;
+ struct elf_dyn_relocs **pp;
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
{
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
- if (!htab->elf.dynamic_sections_created)
+ if (eh->elf.type == STT_GNU_IFUNC)
sreloc = htab->reliplt;
sreloc->size += p->count * sizeof (Elf32_External_Rela);
}
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
- if (h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
if (readonly_dynrelocs (h))
{
((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
return TRUE;
}
+static const unsigned char glink_eh_frame_cie[] =
+{
+ 0, 0, 0, 16, /* length. */
+ 0, 0, 0, 0, /* id. */
+ 1, /* CIE version. */
+ 'z', 'R', 0, /* Augmentation string. */
+ 4, /* Code alignment. */
+ 0x7c, /* Data alignment. */
+ 65, /* RA reg. */
+ 1, /* Augmentation size. */
+ DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
+ DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
+};
+
/* Set the sizes of the dynamic sections. */
static bfd_boolean
-ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ppc_elf_size_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
struct ppc_elf_link_hash_table *htab;
/* Set the contents of the .interp section to the interpreter. */
if (info->executable)
{
- s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
+ s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
BFD_ASSERT (s != NULL);
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
/* Set up .got offsets for local syms, and space for local dynamic
relocs. */
- for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
{
bfd_signed_vma *local_got;
bfd_signed_vma *end_local_got;
for (s = ibfd->sections; s != NULL; s = s->next)
{
- struct ppc_elf_dyn_relocs *p;
+ struct ppc_dyn_relocs *p;
- for (p = ((struct ppc_elf_dyn_relocs *)
+ for (p = ((struct ppc_dyn_relocs *)
elf_section_data (s)->local_dynrel);
p != NULL;
p = p->next)
else if (p->count != 0)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
- if (!htab->elf.dynamic_sections_created)
+ if (p->ifunc)
sreloc = htab->reliplt;
sreloc->size += p->count * sizeof (Elf32_External_Rela);
if ((p->sec->output_section->flags
{
*local_got = allocate_got (htab, need);
if (info->shared)
- htab->relgot->size += (need
- * (sizeof (Elf32_External_Rela) / 4));
+ {
+ asection *srel = htab->relgot;
+ if ((*lgot_masks & PLT_IFUNC) != 0)
+ srel = htab->reliplt;
+ srel->size += need * (sizeof (Elf32_External_Rela) / 4);
+ }
}
}
else
if (info->shared)
{
struct elf_link_hash_entry *sda = htab->sdata[0].sym;
- if (sda != NULL
- && !(sda->root.type == bfd_link_hash_defined
- || sda->root.type == bfd_link_hash_defweak))
- {
- sda->root.type = bfd_link_hash_defined;
- sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
- sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
- }
+
+ sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
+ sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
+ }
+ if (info->emitrelocations)
+ {
+ struct elf_link_hash_entry *sda = htab->sdata[0].sym;
+
+ if (sda != NULL && sda->ref_regular)
+ sda->root.u.def.section->flags |= SEC_KEEP;
+ sda = htab->sdata[1].sym;
+ if (sda != NULL && sda->ref_regular)
+ sda->root.u.def.section->flags |= SEC_KEEP;
}
if (htab->glink != NULL
/* Space for the branch table. */
htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
/* Pad out to align the start of PLTresolve. */
- htab->glink->size += -htab->glink->size & 15;
+ htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
+ ? 63 : 15);
htab->glink->size += GLINK_PLTRESOLVE;
- if (htab->emit_stub_syms)
+ if (htab->params->emit_stub_syms)
{
struct elf_link_hash_entry *sh;
sh = elf_link_hash_lookup (&htab->elf, "__glink",
sh->ref_regular_nonweak = 1;
sh->forced_local = 1;
sh->non_elf = 0;
+ sh->root.linker_def = 1;
}
sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
TRUE, FALSE, FALSE);
sh->ref_regular_nonweak = 1;
sh->forced_local = 1;
sh->non_elf = 0;
+ sh->root.linker_def = 1;
}
}
}
+ if (htab->glink != NULL
+ && htab->glink->size != 0
+ && htab->glink_eh_frame != NULL
+ && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
+ && _bfd_elf_eh_frame_present (info))
+ {
+ s = htab->glink_eh_frame;
+ s->size = sizeof (glink_eh_frame_cie) + 20;
+ if (info->shared)
+ {
+ s->size += 4;
+ if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
+ s->size += 4;
+ }
+ }
+
/* We've now determined the sizes of the various dynamic sections.
Allocate memory for them. */
relocs = FALSE;
}
else if (s == htab->iplt
|| s == htab->glink
+ || s == htab->glink_eh_frame
|| s == htab->sgotplt
|| s == htab->sbss
|| s == htab->dynbss
- || s == htab->dynsbss
- || s == htab->sdata[0].section
- || s == htab->sdata[1].section)
+ || s == htab->dynsbss)
{
/* Strip these too. */
}
- else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
+ else if (s == htab->sdata[0].section
+ || s == htab->sdata[1].section)
+ {
+ strip_section = (s->flags & SEC_KEEP) == 0;
+ }
+ else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
+ ".rela"))
{
if (s->size != 0)
{
return FALSE;
}
- if (htab->glink != NULL && htab->glink->size != 0)
+ if (htab->plt_type == PLT_NEW
+ && htab->glink != NULL
+ && htab->glink->size != 0)
{
if (!add_dynamic_entry (DT_PPC_GOT, 0))
return FALSE;
- if (!htab->no_tls_get_addr_opt
+ if (!htab->params->no_tls_get_addr_opt
&& htab->tls_get_addr != NULL
&& htab->tls_get_addr->plt.plist != NULL
- && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
+ && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
return FALSE;
}
}
#undef add_dynamic_entry
+ if (htab->glink_eh_frame != NULL
+ && htab->glink_eh_frame->contents != NULL)
+ {
+ unsigned char *p = htab->glink_eh_frame->contents;
+ bfd_vma val;
+
+ memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
+ /* CIE length (rewrite in case little-endian). */
+ bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
+ p += sizeof (glink_eh_frame_cie);
+ /* FDE length. */
+ val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
+ bfd_put_32 (htab->elf.dynobj, val, p);
+ p += 4;
+ /* CIE pointer. */
+ val = p - htab->glink_eh_frame->contents;
+ bfd_put_32 (htab->elf.dynobj, val, p);
+ p += 4;
+ /* Offset to .glink. Set later. */
+ p += 4;
+ /* .glink size. */
+ bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
+ p += 4;
+ /* Augmentation. */
+ p += 1;
+
+ if (info->shared
+ && htab->elf.dynamic_sections_created)
+ {
+ bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
+ if (adv < 64)
+ *p++ = DW_CFA_advance_loc + adv;
+ else if (adv < 256)
+ {
+ *p++ = DW_CFA_advance_loc1;
+ *p++ = adv;
+ }
+ else if (adv < 65536)
+ {
+ *p++ = DW_CFA_advance_loc2;
+ bfd_put_16 (htab->elf.dynobj, adv, p);
+ p += 2;
+ }
+ else
+ {
+ *p++ = DW_CFA_advance_loc4;
+ bfd_put_32 (htab->elf.dynobj, adv, p);
+ p += 4;
+ }
+ *p++ = DW_CFA_register;
+ *p++ = 65;
+ p++;
+ *p++ = DW_CFA_advance_loc + 4;
+ *p++ = DW_CFA_restore_extended;
+ *p++ = 65;
+ }
+ BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
+ == htab->glink_eh_frame->size);
+ }
+
return TRUE;
}
+/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
+ if it looks like nothing is using them. */
+
+static void
+maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
+{
+ struct elf_link_hash_entry *sda = lsect->sym;
+
+ if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
+ {
+ asection *s;
+
+ s = bfd_get_section_by_name (output_bfd, lsect->name);
+ if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
+ {
+ s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
+ if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
+ {
+ sda->def_regular = 0;
+ /* This is somewhat magic. See elf_link_output_extsym. */
+ sda->ref_dynamic = 1;
+ sda->forced_local = 0;
+ }
+ }
+ }
+}
+
+void
+ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
+{
+ struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
+
+ if (htab != NULL)
+ {
+ maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
+ maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
+ }
+}
+
+
/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
static bfd_boolean
0x429f0005, /* bcl 20, 31, .Lxxx */
0x7d8802a6, /* mflr 12 */
0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
- 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
+ 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
0x7c0803a6, /* mtlr 0 */
0x7d8903a6, /* mtctr 12 */
0x4e800420, /* bctr */
0x4e800420, /* bctr */
};
+struct ppc_elf_relax_info
+{
+ unsigned int workaround_size;
+};
+
+/* This function implements long branch trampolines, and the ppc476
+ icache bug workaround. Any section needing trampolines or patch
+ space for the workaround has its size extended so that we can
+ add trampolines at the end of the section. */
+
static bfd_boolean
ppc_elf_relax_section (bfd *abfd,
asection *isec,
bfd_byte *contents = NULL;
Elf_Internal_Sym *isymbuf = NULL;
Elf_Internal_Rela *internal_relocs = NULL;
- Elf_Internal_Rela *irel, *irelend;
+ Elf_Internal_Rela *irel, *irelend = NULL;
struct one_fixup *fixups = NULL;
+ struct ppc_elf_relax_info *relax_info = NULL;
unsigned changes = 0;
+ bfd_boolean workaround_change;
struct ppc_elf_link_hash_table *htab;
- bfd_size_type trampoff;
+ bfd_size_type trampbase, trampoff, newsize;
asection *got2;
+ bfd_boolean maybe_pasted;
*again = FALSE;
- /* Nothing to do if there are no relocations, and no need to do
- anything with non-alloc or non-code sections. */
+ /* No need to do anything with non-alloc or non-code sections. */
if ((isec->flags & SEC_ALLOC) == 0
|| (isec->flags & SEC_CODE) == 0
- || (isec->flags & SEC_RELOC) == 0
- || isec->reloc_count == 0)
+ || (isec->flags & SEC_LINKER_CREATED) != 0
+ || isec->size < 4)
return TRUE;
/* We cannot represent the required PIC relocs in the output, so don't
do anything. The linker doesn't support mixing -shared and -r
anyway. */
if (link_info->relocatable && link_info->shared)
- return TRUE;
-
- trampoff = (isec->size + 3) & (bfd_vma) -4;
- /* Space for a branch around any trampolines. */
- trampoff += 4;
+ return TRUE;
- symtab_hdr = &elf_symtab_hdr (abfd);
+ htab = ppc_elf_hash_table (link_info);
+ if (htab == NULL)
+ return TRUE;
- /* Get a copy of the native relocations. */
- internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
- link_info->keep_memory);
- if (internal_relocs == NULL)
- goto error_return;
+ isec->size = (isec->size + 3) & -4;
+ if (isec->rawsize == 0)
+ isec->rawsize = isec->size;
+ trampbase = isec->size;
- htab = ppc_elf_hash_table (link_info);
- got2 = bfd_get_section_by_name (abfd, ".got2");
+ BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
+ || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
+ isec->sec_info_type = SEC_INFO_TYPE_TARGET;
- irelend = internal_relocs + isec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++)
+ if (htab->params->ppc476_workaround)
{
- unsigned long r_type = ELF32_R_TYPE (irel->r_info);
- bfd_vma toff, roff;
- asection *tsec;
- struct one_fixup *f;
- size_t insn_offset = 0;
- bfd_vma max_branch_offset, val;
- bfd_byte *hit_addr;
- unsigned long t0;
- struct elf_link_hash_entry *h;
- struct plt_entry **plist;
- unsigned char sym_type;
-
- switch (r_type)
+ if (elf_section_data (isec)->sec_info == NULL)
{
- case R_PPC_REL24:
- case R_PPC_LOCAL24PC:
- case R_PPC_PLTREL24:
- max_branch_offset = 1 << 25;
- break;
+ elf_section_data (isec)->sec_info
+ = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
+ if (elf_section_data (isec)->sec_info == NULL)
+ return FALSE;
+ }
+ relax_info = elf_section_data (isec)->sec_info;
+ trampbase -= relax_info->workaround_size;
+ }
- case R_PPC_REL14:
- case R_PPC_REL14_BRTAKEN:
- case R_PPC_REL14_BRNTAKEN:
- max_branch_offset = 1 << 15;
- break;
+ maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
+ || strcmp (isec->output_section->name, ".fini") == 0);
+ /* Space for a branch around any trampolines. */
+ trampoff = trampbase;
+ if (maybe_pasted && trampbase == isec->rawsize)
+ trampoff += 4;
- default:
- continue;
- }
+ symtab_hdr = &elf_symtab_hdr (abfd);
- /* Get the value of the symbol referred to by the reloc. */
- h = NULL;
- if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
+ if (htab->params->branch_trampolines)
+ {
+ /* Get a copy of the native relocations. */
+ if (isec->reloc_count != 0)
{
- /* A local symbol. */
- Elf_Internal_Sym *isym;
+ internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
+ link_info->keep_memory);
+ if (internal_relocs == NULL)
+ goto error_return;
+ }
- /* Read this BFD's local symbols. */
- if (isymbuf == NULL)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == 0)
- goto error_return;
- }
- isym = isymbuf + ELF32_R_SYM (irel->r_info);
- if (isym->st_shndx == SHN_UNDEF)
- tsec = bfd_und_section_ptr;
- else if (isym->st_shndx == SHN_ABS)
- tsec = bfd_abs_section_ptr;
- else if (isym->st_shndx == SHN_COMMON)
- tsec = bfd_com_section_ptr;
- else
- tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ got2 = bfd_get_section_by_name (abfd, ".got2");
- toff = isym->st_value;
- sym_type = ELF_ST_TYPE (isym->st_info);
- }
- else
+ irelend = internal_relocs + isec->reloc_count;
+ for (irel = internal_relocs; irel < irelend; irel++)
{
- /* Global symbol handling. */
- unsigned long indx;
-
- indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
- h = elf_sym_hashes (abfd)[indx];
+ unsigned long r_type = ELF32_R_TYPE (irel->r_info);
+ bfd_vma toff, roff;
+ asection *tsec;
+ struct one_fixup *f;
+ size_t insn_offset = 0;
+ bfd_vma max_branch_offset, val;
+ bfd_byte *hit_addr;
+ unsigned long t0;
+ struct elf_link_hash_entry *h;
+ struct plt_entry **plist;
+ unsigned char sym_type;
+
+ switch (r_type)
+ {
+ case R_PPC_REL24:
+ case R_PPC_LOCAL24PC:
+ case R_PPC_PLTREL24:
+ max_branch_offset = 1 << 25;
+ break;
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ case R_PPC_REL14:
+ case R_PPC_REL14_BRTAKEN:
+ case R_PPC_REL14_BRNTAKEN:
+ max_branch_offset = 1 << 15;
+ break;
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- tsec = h->root.u.def.section;
- toff = h->root.u.def.value;
+ default:
+ continue;
}
- else if (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
+
+ /* Get the value of the symbol referred to by the reloc. */
+ h = NULL;
+ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
- tsec = bfd_und_section_ptr;
- toff = link_info->relocatable ? indx : 0;
+ /* A local symbol. */
+ Elf_Internal_Sym *isym;
+
+ /* Read this BFD's local symbols. */
+ if (isymbuf == NULL)
+ {
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (isymbuf == NULL)
+ isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == 0)
+ goto error_return;
+ }
+ isym = isymbuf + ELF32_R_SYM (irel->r_info);
+ if (isym->st_shndx == SHN_UNDEF)
+ tsec = bfd_und_section_ptr;
+ else if (isym->st_shndx == SHN_ABS)
+ tsec = bfd_abs_section_ptr;
+ else if (isym->st_shndx == SHN_COMMON)
+ tsec = bfd_com_section_ptr;
+ else
+ tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
+
+ toff = isym->st_value;
+ sym_type = ELF_ST_TYPE (isym->st_info);
}
else
- continue;
+ {
+ /* Global symbol handling. */
+ unsigned long indx;
- sym_type = h->type;
- }
+ indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
- /* The condition here under which we call find_plt_ent must
- match that in relocate_section. If we call find_plt_ent here
- but not in relocate_section, or vice versa, then the branch
- destination used here may be incorrect. */
- plist = NULL;
- if (h != NULL)
- {
- /* We know is_branch_reloc (r_type) is true. */
- if (h->type == STT_GNU_IFUNC
- || r_type == R_PPC_PLTREL24)
- plist = &h->plt.plist;
- }
- else if (sym_type == STT_GNU_IFUNC
- && elf_local_got_offsets (abfd) != NULL)
- {
- bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
- struct plt_entry **local_plt = (struct plt_entry **)
- (local_got_offsets + symtab_hdr->sh_info);
- plist = local_plt + ELF32_R_SYM (irel->r_info);
- }
- if (plist != NULL)
- {
- bfd_vma addend = 0;
- struct plt_entry *ent;
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
- if (r_type == R_PPC_PLTREL24 && link_info->shared)
- addend = irel->r_addend;
- ent = find_plt_ent (plist, got2, addend);
- if (ent != NULL)
- {
- if (htab->plt_type == PLT_NEW
- || h == NULL
- || !htab->elf.dynamic_sections_created
- || h->dynindx == -1)
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
{
- tsec = htab->glink;
- toff = ent->glink_offset;
+ tsec = h->root.u.def.section;
+ toff = h->root.u.def.value;
}
- else
+ else if (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
{
- tsec = htab->plt;
- toff = ent->plt.offset;
+ tsec = bfd_und_section_ptr;
+ toff = link_info->relocatable ? indx : 0;
}
- }
- }
-
- /* If the branch and target are in the same section, you have
- no hope of adding stubs. We'll error out later should the
- branch overflow. */
- if (tsec == isec)
- continue;
-
- /* There probably isn't any reason to handle symbols in
- SEC_MERGE sections; SEC_MERGE doesn't seem a likely
- attribute for a code section, and we are only looking at
- branches. However, implement it correctly here as a
- reference for other target relax_section functions. */
- if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
- {
- /* At this stage in linking, no SEC_MERGE symbol has been
- adjusted, so all references to such symbols need to be
- passed through _bfd_merged_section_offset. (Later, in
- relocate_section, all SEC_MERGE symbols *except* for
- section symbols have been adjusted.)
-
- gas may reduce relocations against symbols in SEC_MERGE
- sections to a relocation against the section symbol when
- the original addend was zero. When the reloc is against
- a section symbol we should include the addend in the
- offset passed to _bfd_merged_section_offset, since the
- location of interest is the original symbol. On the
- other hand, an access to "sym+addend" where "sym" is not
- a section symbol should not include the addend; Such an
- access is presumed to be an offset from "sym"; The
- location of interest is just "sym". */
- if (sym_type == STT_SECTION)
- toff += irel->r_addend;
+ else
+ continue;
- toff = _bfd_merged_section_offset (abfd, &tsec,
- elf_section_data (tsec)->sec_info,
- toff);
+ /* If this branch is to __tls_get_addr then we may later
+ optimise away the call. We won't be needing a long-
+ branch stub in that case. */
+ if (link_info->executable
+ && !link_info->relocatable
+ && h == htab->tls_get_addr
+ && irel != internal_relocs)
+ {
+ unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
+ unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
+ unsigned int tls_mask = 0;
+
+ /* The previous reloc should be one of R_PPC_TLSGD or
+ R_PPC_TLSLD, or for older object files, a reloc
+ on the __tls_get_addr arg setup insn. Get tls
+ mask bits from the symbol on that reloc. */
+ if (t_symndx < symtab_hdr->sh_info)
+ {
+ bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
- if (sym_type != STT_SECTION)
- toff += irel->r_addend;
- }
- /* PLTREL24 addends are special. */
- else if (r_type != R_PPC_PLTREL24)
- toff += irel->r_addend;
+ if (local_got_offsets != NULL)
+ {
+ struct plt_entry **local_plt = (struct plt_entry **)
+ (local_got_offsets + symtab_hdr->sh_info);
+ char *lgot_masks = (char *)
+ (local_plt + symtab_hdr->sh_info);
+ tls_mask = lgot_masks[t_symndx];
+ }
+ }
+ else
+ {
+ struct elf_link_hash_entry *th
+ = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
- /* Attempted -shared link of non-pic code loses. */
- if (tsec->output_section == NULL)
- continue;
+ while (th->root.type == bfd_link_hash_indirect
+ || th->root.type == bfd_link_hash_warning)
+ th = (struct elf_link_hash_entry *) th->root.u.i.link;
- roff = irel->r_offset;
+ tls_mask
+ = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
+ }
- /* If the branch is in range, no need to do anything. */
- if (tsec != bfd_und_section_ptr
- && (!link_info->relocatable
- /* A relocatable link may have sections moved during
- final link, so do not presume they remain in range. */
- || tsec->output_section == isec->output_section))
- {
- bfd_vma symaddr, reladdr;
+ /* The mask bits tell us if the call will be
+ optimised away. */
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
+ && (t_rtype == R_PPC_TLSGD
+ || t_rtype == R_PPC_GOT_TLSGD16
+ || t_rtype == R_PPC_GOT_TLSGD16_LO))
+ continue;
+ if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
+ && (t_rtype == R_PPC_TLSLD
+ || t_rtype == R_PPC_GOT_TLSLD16
+ || t_rtype == R_PPC_GOT_TLSLD16_LO))
+ continue;
+ }
- symaddr = tsec->output_section->vma + tsec->output_offset + toff;
- reladdr = isec->output_section->vma + isec->output_offset + roff;
- if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
- continue;
- }
+ sym_type = h->type;
+ }
- /* Look for an existing fixup to this address. */
- for (f = fixups; f ; f = f->next)
- if (f->tsec == tsec && f->toff == toff)
- break;
+ /* The condition here under which we call find_plt_ent must
+ match that in relocate_section. If we call find_plt_ent here
+ but not in relocate_section, or vice versa, then the branch
+ destination used here may be incorrect. */
+ plist = NULL;
+ if (h != NULL)
+ {
+ /* We know is_branch_reloc (r_type) is true. */
+ if (h->type == STT_GNU_IFUNC
+ || r_type == R_PPC_PLTREL24)
+ plist = &h->plt.plist;
+ }
+ else if (sym_type == STT_GNU_IFUNC
+ && elf_local_got_offsets (abfd) != NULL)
+ {
+ bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
+ struct plt_entry **local_plt = (struct plt_entry **)
+ (local_got_offsets + symtab_hdr->sh_info);
+ plist = local_plt + ELF32_R_SYM (irel->r_info);
+ }
+ if (plist != NULL)
+ {
+ bfd_vma addend = 0;
+ struct plt_entry *ent;
- if (f == NULL)
- {
- size_t size;
- unsigned long stub_rtype;
+ if (r_type == R_PPC_PLTREL24 && link_info->shared)
+ addend = irel->r_addend;
+ ent = find_plt_ent (plist, got2, addend);
+ if (ent != NULL)
+ {
+ if (htab->plt_type == PLT_NEW
+ || h == NULL
+ || !htab->elf.dynamic_sections_created
+ || h->dynindx == -1)
+ {
+ tsec = htab->glink;
+ toff = ent->glink_offset;
+ }
+ else
+ {
+ tsec = htab->plt;
+ toff = ent->plt.offset;
+ }
+ }
+ }
- val = trampoff - roff;
- if (val >= max_branch_offset)
- /* Oh dear, we can't reach a trampoline. Don't try to add
- one. We'll report an error later. */
+ /* If the branch and target are in the same section, you have
+ no hope of adding stubs. We'll error out later should the
+ branch overflow. */
+ if (tsec == isec)
continue;
- if (link_info->shared)
+ /* There probably isn't any reason to handle symbols in
+ SEC_MERGE sections; SEC_MERGE doesn't seem a likely
+ attribute for a code section, and we are only looking at
+ branches. However, implement it correctly here as a
+ reference for other target relax_section functions. */
+ if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
{
- size = 4 * ARRAY_SIZE (shared_stub_entry);
- insn_offset = 12;
+ /* At this stage in linking, no SEC_MERGE symbol has been
+ adjusted, so all references to such symbols need to be
+ passed through _bfd_merged_section_offset. (Later, in
+ relocate_section, all SEC_MERGE symbols *except* for
+ section symbols have been adjusted.)
+
+ gas may reduce relocations against symbols in SEC_MERGE
+ sections to a relocation against the section symbol when
+ the original addend was zero. When the reloc is against
+ a section symbol we should include the addend in the
+ offset passed to _bfd_merged_section_offset, since the
+ location of interest is the original symbol. On the
+ other hand, an access to "sym+addend" where "sym" is not
+ a section symbol should not include the addend; Such an
+ access is presumed to be an offset from "sym"; The
+ location of interest is just "sym". */
+ if (sym_type == STT_SECTION)
+ toff += irel->r_addend;
+
+ toff
+ = _bfd_merged_section_offset (abfd, &tsec,
+ elf_section_data (tsec)->sec_info,
+ toff);
+
+ if (sym_type != STT_SECTION)
+ toff += irel->r_addend;
}
- else
+ /* PLTREL24 addends are special. */
+ else if (r_type != R_PPC_PLTREL24)
+ toff += irel->r_addend;
+
+ /* Attempted -shared link of non-pic code loses. */
+ if ((!link_info->relocatable
+ && tsec == bfd_und_section_ptr)
+ || tsec->output_section == NULL
+ || (tsec->owner != NULL
+ && (tsec->owner->flags & BFD_PLUGIN) != 0))
+ continue;
+
+ roff = irel->r_offset;
+
+ /* If the branch is in range, no need to do anything. */
+ if (tsec != bfd_und_section_ptr
+ && (!link_info->relocatable
+ /* A relocatable link may have sections moved during
+ final link, so do not presume they remain in range. */
+ || tsec->output_section == isec->output_section))
{
- size = 4 * ARRAY_SIZE (stub_entry);
- insn_offset = 0;
+ bfd_vma symaddr, reladdr;
+
+ symaddr = tsec->output_section->vma + tsec->output_offset + toff;
+ reladdr = isec->output_section->vma + isec->output_offset + roff;
+ if (symaddr - reladdr + max_branch_offset
+ < 2 * max_branch_offset)
+ continue;
}
- stub_rtype = R_PPC_RELAX;
- if (tsec == htab->plt
- || tsec == htab->glink)
+
+ /* Look for an existing fixup to this address. */
+ for (f = fixups; f ; f = f->next)
+ if (f->tsec == tsec && f->toff == toff)
+ break;
+
+ if (f == NULL)
{
- stub_rtype = R_PPC_RELAX_PLT;
- if (r_type == R_PPC_PLTREL24)
- stub_rtype = R_PPC_RELAX_PLTREL24;
- }
+ size_t size;
+ unsigned long stub_rtype;
- /* Hijack the old relocation. Since we need two
- relocations for this use a "composite" reloc. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- stub_rtype);
- irel->r_offset = trampoff + insn_offset;
- if (r_type == R_PPC_PLTREL24
- && stub_rtype != R_PPC_RELAX_PLTREL24)
- irel->r_addend = 0;
-
- /* Record the fixup so we don't do it again this section. */
- f = bfd_malloc (sizeof (*f));
- f->next = fixups;
- f->tsec = tsec;
- f->toff = toff;
- f->trampoff = trampoff;
- fixups = f;
-
- trampoff += size;
- changes++;
- }
- else
- {
- val = f->trampoff - roff;
- if (val >= max_branch_offset)
- continue;
+ val = trampoff - roff;
+ if (val >= max_branch_offset)
+ /* Oh dear, we can't reach a trampoline. Don't try to add
+ one. We'll report an error later. */
+ continue;
- /* Nop out the reloc, since we're finalizing things here. */
- irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
- }
+ if (link_info->shared)
+ {
+ size = 4 * ARRAY_SIZE (shared_stub_entry);
+ insn_offset = 12;
+ }
+ else
+ {
+ size = 4 * ARRAY_SIZE (stub_entry);
+ insn_offset = 0;
+ }
+ stub_rtype = R_PPC_RELAX;
+ if (tsec == htab->plt
+ || tsec == htab->glink)
+ {
+ stub_rtype = R_PPC_RELAX_PLT;
+ if (r_type == R_PPC_PLTREL24)
+ stub_rtype = R_PPC_RELAX_PLTREL24;
+ }
- /* Get the section contents. */
- if (contents == NULL)
- {
- /* Get cached copy if it exists. */
- if (elf_section_data (isec)->this_hdr.contents != NULL)
- contents = elf_section_data (isec)->this_hdr.contents;
+ /* Hijack the old relocation. Since we need two
+ relocations for this use a "composite" reloc. */
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
+ stub_rtype);
+ irel->r_offset = trampoff + insn_offset;
+ if (r_type == R_PPC_PLTREL24
+ && stub_rtype != R_PPC_RELAX_PLTREL24)
+ irel->r_addend = 0;
+
+ /* Record the fixup so we don't do it again this section. */
+ f = bfd_malloc (sizeof (*f));
+ f->next = fixups;
+ f->tsec = tsec;
+ f->toff = toff;
+ f->trampoff = trampoff;
+ fixups = f;
+
+ trampoff += size;
+ changes++;
+ }
else
{
+ val = f->trampoff - roff;
+ if (val >= max_branch_offset)
+ continue;
+
+ /* Nop out the reloc, since we're finalizing things here. */
+ irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
+ }
+
+ /* Get the section contents. */
+ if (contents == NULL)
+ {
+ /* Get cached copy if it exists. */
+ if (elf_section_data (isec)->this_hdr.contents != NULL)
+ contents = elf_section_data (isec)->this_hdr.contents;
/* Go get them off disk. */
- if (!bfd_malloc_and_get_section (abfd, isec, &contents))
+ else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
goto error_return;
}
- }
- /* Fix up the existing branch to hit the trampoline. */
- hit_addr = contents + roff;
- switch (r_type)
- {
- case R_PPC_REL24:
- case R_PPC_LOCAL24PC:
- case R_PPC_PLTREL24:
- t0 = bfd_get_32 (abfd, hit_addr);
- t0 &= ~0x3fffffc;
- t0 |= val & 0x3fffffc;
- bfd_put_32 (abfd, t0, hit_addr);
- break;
+ /* Fix up the existing branch to hit the trampoline. */
+ hit_addr = contents + roff;
+ switch (r_type)
+ {
+ case R_PPC_REL24:
+ case R_PPC_LOCAL24PC:
+ case R_PPC_PLTREL24:
+ t0 = bfd_get_32 (abfd, hit_addr);
+ t0 &= ~0x3fffffc;
+ t0 |= val & 0x3fffffc;
+ bfd_put_32 (abfd, t0, hit_addr);
+ break;
- case R_PPC_REL14:
- case R_PPC_REL14_BRTAKEN:
- case R_PPC_REL14_BRNTAKEN:
- t0 = bfd_get_32 (abfd, hit_addr);
- t0 &= ~0xfffc;
- t0 |= val & 0xfffc;
- bfd_put_32 (abfd, t0, hit_addr);
- break;
+ case R_PPC_REL14:
+ case R_PPC_REL14_BRTAKEN:
+ case R_PPC_REL14_BRNTAKEN:
+ t0 = bfd_get_32 (abfd, hit_addr);
+ t0 &= ~0xfffc;
+ t0 |= val & 0xfffc;
+ bfd_put_32 (abfd, t0, hit_addr);
+ break;
+ }
}
- }
- /* Write out the trampolines. */
- if (fixups != NULL)
- {
- const int *stub;
- bfd_byte *dest;
- bfd_vma val;
- int i, size;
-
- do
+ while (fixups != NULL)
{
struct one_fixup *f = fixups;
fixups = fixups->next;
free (f);
}
- while (fixups);
-
- contents = bfd_realloc_or_free (contents, trampoff);
- if (contents == NULL)
- goto error_return;
-
- isec->size = (isec->size + 3) & (bfd_vma) -4;
- /* Branch around the trampolines. */
- val = B + trampoff - isec->size;
- dest = contents + isec->size;
- isec->size = trampoff;
- bfd_put_32 (abfd, val, dest);
- dest += 4;
-
- if (link_info->shared)
- {
- stub = shared_stub_entry;
- size = ARRAY_SIZE (shared_stub_entry);
- }
- else
- {
- stub = stub_entry;
- size = ARRAY_SIZE (stub_entry);
- }
+ }
- i = 0;
- while (dest < contents + trampoff)
+ workaround_change = FALSE;
+ newsize = trampoff;
+ if (htab->params->ppc476_workaround
+ && (!link_info->relocatable
+ || isec->output_section->alignment_power >= htab->params->pagesize_p2))
+ {
+ bfd_vma addr, end_addr;
+ unsigned int crossings;
+ bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
+
+ addr = isec->output_section->vma + isec->output_offset;
+ end_addr = addr + trampoff;
+ addr &= -pagesize;
+ crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
+ if (crossings != 0)
{
- bfd_put_32 (abfd, stub[i], dest);
- i++;
- if (i == size)
- i = 0;
- dest += 4;
+ /* Keep space aligned, to ensure the patch code itself does
+ not cross a page. Don't decrease size calculated on a
+ previous pass as otherwise we might never settle on a layout. */
+ newsize = 15 - ((end_addr - 1) & 15);
+ newsize += crossings * 16;
+ if (relax_info->workaround_size < newsize)
+ {
+ relax_info->workaround_size = newsize;
+ workaround_change = TRUE;
+ }
+ /* Ensure relocate_section is called. */
+ isec->flags |= SEC_RELOC;
}
- BFD_ASSERT (i == 0);
+ newsize = trampoff + relax_info->workaround_size;
}
+ if (changes || workaround_change)
+ isec->size = newsize;
+
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
{
{
/* Append sufficient NOP relocs so we can write out relocation
information for the trampolines. */
+ Elf_Internal_Shdr *rel_hdr;
Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
* sizeof (*new_relocs));
unsigned ix;
free (internal_relocs);
elf_section_data (isec)->relocs = new_relocs;
isec->reloc_count += changes;
- elf_section_data (isec)->rel_hdr.sh_size
- += changes * elf_section_data (isec)->rel_hdr.sh_entsize;
+ rel_hdr = _bfd_elf_single_rel_hdr (isec);
+ rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
}
- else if (elf_section_data (isec)->relocs != internal_relocs)
+ else if (internal_relocs != NULL
+ && elf_section_data (isec)->relocs != internal_relocs)
free (internal_relocs);
- *again = changes != 0;
- if (!*again && link_info->relocatable)
- {
- /* Convert the internal relax relocs to external form. */
- for (irel = internal_relocs; irel < irelend; irel++)
- if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
- {
- unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
-
- /* Rewrite the reloc and convert one of the trailing nop
- relocs to describe this relocation. */
- BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
- /* The relocs are at the bottom 2 bytes */
- irel[0].r_offset += 2;
- memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
- irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
- irel[1].r_offset += 4;
- irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
- irel++;
- }
- }
-
+ *again = changes != 0 || workaround_change;
return TRUE;
error_return:
+ while (fixups != NULL)
+ {
+ struct one_fixup *f = fixups;
+ fixups = fixups->next;
+ free (f);
+ }
if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
free (isymbuf);
if (contents != NULL
p += 4;
bfd_put_32 (output_bfd, BCTR, p);
p += 4;
- bfd_put_32 (output_bfd, NOP, p);
+ bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
p += 4;
}
else
return insn;
}
+static bfd_boolean
+is_insn_ds_form (unsigned int insn)
+{
+ return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
+ || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
+ || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
+ || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
+}
+
+static bfd_boolean
+is_insn_dq_form (unsigned int insn)
+{
+ return (insn & (0x3f << 26)) == 56u << 26; /* lq */
+}
+
/* The RELOCATE_SECTION function is called by the ELF backend linker
to handle the relocations for a section.
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
Elf_Internal_Rela outrel;
- asection *got2, *sreloc = NULL;
+ asection *got2;
bfd_vma *local_got_offsets;
bfd_boolean ret = TRUE;
bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
bfd_boolean warned;
unsigned int tls_type, tls_mask, tls_gd;
struct plt_entry **ifunc;
+ struct reloc_howto_struct alt_howto;
r_type = ELF32_R_TYPE (rel->r_info);
sym = NULL;
}
else
{
+ bfd_boolean ignored;
+
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
sym_name = h->root.root.string;
}
- if (sec != NULL && elf_discarded_section (sec))
+ if (sec != NULL && discarded_section (sec))
{
/* For relocs against symbols from removed linkonce sections,
or sections discarded by a linker script, we just want the
howto = NULL;
if (r_type < R_PPC_max)
howto = ppc_elf_howto_table[r_type];
- _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
- rel->r_info = 0;
- rel->r_addend = 0;
- continue;
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
}
if (info->relocatable)
{
if (got2 != NULL
&& r_type == R_PPC_PLTREL24
- && rel->r_addend >= 32768)
+ && rel->r_addend != 0)
{
/* R_PPC_PLTREL24 is rather special. If non-zero, the
addend specifies the GOT pointer offset within .got2. */
rel->r_addend += got2->output_offset;
}
- continue;
+ if (r_type != R_PPC_RELAX_PLT
+ && r_type != R_PPC_RELAX_PLTREL24
+ && r_type != R_PPC_RELAX)
+ continue;
}
/* TLS optimizations. Replace instruction sequences and relocs
+ R_PPC_GOT_TPREL16);
else
{
- bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
rel->r_offset -= d_offset;
+ bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
r_type = R_PPC_NONE;
}
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
&& branch_reloc_hash_match (input_bfd, rel + 1,
htab->tls_get_addr))
offset = rel[1].r_offset;
+ /* We read the low GOT_TLS insn because we need to keep
+ the destination reg. It may be something other than
+ the usual r3, and moved to r3 before the call by
+ intervening code. */
+ insn1 = bfd_get_32 (output_bfd,
+ contents + rel->r_offset - d_offset);
if ((tls_mask & tls_gd) != 0)
{
/* IE */
- insn1 = bfd_get_32 (output_bfd,
- contents + rel->r_offset - d_offset);
- insn1 &= (1 << 26) - 1;
+ insn1 &= (0x1f << 21) | (0x1f << 16);
insn1 |= 32 << 26; /* lwz */
if (offset != (bfd_vma) -1)
{
else
{
/* LE */
- insn1 = 0x3c620000; /* addis 3,2,0 */
+ insn1 &= 0x1f << 21;
+ insn1 |= 0x3c020000; /* addis r,2,0 */
if (tls_gd == 0)
{
/* Was an LD reloc. */
if (local_sections[r_symndx] == sec)
break;
if (r_symndx >= symtab_hdr->sh_info)
- r_symndx = 0;
+ r_symndx = STN_UNDEF;
rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
- if (r_symndx != 0)
+ if (r_symndx != STN_UNDEF)
rel->r_addend -= (local_syms[r_symndx].st_value
+ sec->output_offset
+ sec->output_section->vma);
if (local_sections[r_symndx] == sec)
break;
if (r_symndx >= symtab_hdr->sh_info)
- r_symndx = 0;
+ r_symndx = STN_UNDEF;
rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
- if (r_symndx != 0)
+ if (r_symndx != STN_UNDEF)
rel->r_addend -= (local_syms[r_symndx].st_value
+ sec->output_offset
+ sec->output_section->vma);
unresolved_reloc = FALSE;
if (htab->plt_type == PLT_NEW
|| !htab->elf.dynamic_sections_created
- || h == NULL)
+ || h == NULL
+ || h->dynindx == -1)
relocation = (htab->glink->output_section->vma
+ htab->glink->output_offset
+ (ent->glink_offset & ~1));
switch (r_type)
{
default:
- (*_bfd_error_handler)
- (_("%B: unknown relocation type %d for symbol %s"),
+ info->callbacks->einfo
+ (_("%P: %B: unknown relocation type %d for symbol %s\n"),
input_bfd, (int) r_type, sym_name);
bfd_set_error (bfd_error_bad_value);
;
else
{
+ BFD_ASSERT (h->dynindx != -1);
indx = h->dynindx;
unresolved_reloc = FALSE;
}
asection *rsec = htab->relgot;
bfd_byte * loc;
+ if (ifunc != NULL)
+ rsec = htab->reliplt;
outrel.r_offset = (htab->got->output_section->vma
+ htab->got->output_offset
+ off);
{
outrel.r_addend += relocation;
if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
- outrel.r_addend -= htab->elf.tls_sec->vma;
+ {
+ if (htab->elf.tls_sec == NULL)
+ outrel.r_addend = 0;
+ else
+ outrel.r_addend -= htab->elf.tls_sec->vma;
+ }
}
loc = rsec->contents;
loc += (rsec->reloc_count++
value = 1;
else if (tls_ty != 0)
{
- value -= htab->elf.tls_sec->vma + DTP_OFFSET;
- if (tls_ty == (TLS_TLS | TLS_TPREL))
- value += DTP_OFFSET - TP_OFFSET;
+ if (htab->elf.tls_sec == NULL)
+ value = 0;
+ else
+ {
+ value -= htab->elf.tls_sec->vma + DTP_OFFSET;
+ if (tls_ty == (TLS_TLS | TLS_TPREL))
+ value += DTP_OFFSET - TP_OFFSET;
+ }
if (tls_ty == (TLS_TLS | TLS_GD))
{
generated by a hash table traversal, the value in the
got at entry m+n bears little relation to the entry m. */
if (addend != 0)
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
- input_bfd,
- input_section,
- (long) rel->r_offset,
+ info->callbacks->einfo
+ (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
+ input_bfd, input_section, rel->r_offset,
howto->name,
sym_name);
}
- break;
+ break;
- /* Relocations that need no special processing. */
+ /* Relocations that need no special processing. */
case R_PPC_LOCAL24PC:
/* It makes no sense to point a local relocation
at a symbol not in this object. */
case R_PPC_DTPREL16_LO:
case R_PPC_DTPREL16_HI:
case R_PPC_DTPREL16_HA:
- addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
+ if (htab->elf.tls_sec != NULL)
+ addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
break;
/* Relocations that may need to be propagated if this is a shared
bfd_put_32 (output_bfd, insn, p);
break;
}
- addend -= htab->elf.tls_sec->vma + TP_OFFSET;
+ if (htab->elf.tls_sec != NULL)
+ addend -= htab->elf.tls_sec->vma + TP_OFFSET;
/* The TPREL16 relocs shouldn't really be used in shared
libs as they will result in DT_TEXTREL being set, but
support them anyway. */
goto dodyn;
case R_PPC_TPREL32:
- addend -= htab->elf.tls_sec->vma + TP_OFFSET;
+ if (htab->elf.tls_sec != NULL)
+ addend -= htab->elf.tls_sec->vma + TP_OFFSET;
goto dodyn;
case R_PPC_DTPREL32:
- addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
+ if (htab->elf.tls_sec != NULL)
+ addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
goto dodyn;
case R_PPC_DTPMOD32:
case R_PPC_UADDR16:
goto dodyn;
+ case R_PPC_VLE_REL8:
+ case R_PPC_VLE_REL15:
+ case R_PPC_VLE_REL24:
case R_PPC_REL24:
case R_PPC_REL14:
case R_PPC_REL14_BRTAKEN:
&& !h->def_regular))
{
int skip;
- bfd_byte * loc;
+ bfd_byte *loc;
+ asection *sreloc;
#ifdef DEBUG
fprintf (stderr, "ppc_elf_relocate_section needs to "
"create relocation for %s\n",
/* When generating a shared object, these relocations
are copied into the output file to be resolved at run
time. */
+ sreloc = elf_section_data (input_section)->sreloc;
+ if (ifunc)
+ sreloc = htab->reliplt;
if (sreloc == NULL)
- {
- sreloc = elf_section_data (input_section)->sreloc;
- if (!htab->elf.dynamic_sections_created)
- sreloc = htab->reliplt;
- if (sreloc == NULL)
- return FALSE;
- }
+ return FALSE;
skip = 0;
outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
|| h->root.type == bfd_link_hash_undefweak))
|| !SYMBOL_REFERENCES_LOCAL (info, h))
{
+ BFD_ASSERT (h->dynindx != -1);
unresolved_reloc = FALSE;
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
outrel.r_addend = rel->r_addend;
non-executable to apply text relocations.
So we'll segfault when trying to run the
indirection function to resolve the reloc. */
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): relocation %s for indirect "
- "function %s unsupported"),
- input_bfd,
- input_section,
- (long) rel->r_offset,
+ info->callbacks->einfo
+ (_("%P: %H: relocation %s for indirect "
+ "function %s unsupported\n"),
+ input_bfd, input_section, rel->r_offset,
howto->name,
sym_name);
ret = FALSE;
}
- else if (r_symndx == 0 || bfd_is_abs_section (sec))
+ else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
;
else if (sec == NULL || sec->owner == NULL)
{
/* Fall thru */
case R_PPC_RELAX:
- if (info->shared)
- relocation -= (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset - 4);
-
{
- unsigned long t0;
- unsigned long t1;
+ const int *stub;
+ size_t size;
+ size_t insn_offset = rel->r_offset;
+ unsigned int insn;
- t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
- t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
-
- /* We're clearing the bits for R_PPC_ADDR16_HA
- and R_PPC_ADDR16_LO here. */
- t0 &= ~0xffff;
- t1 &= ~0xffff;
+ if (info->shared)
+ {
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset - 4);
+ stub = shared_stub_entry;
+ bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12);
+ bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8);
+ bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4);
+ stub += 3;
+ size = ARRAY_SIZE (shared_stub_entry) - 3;
+ }
+ else
+ {
+ stub = stub_entry;
+ size = ARRAY_SIZE (stub_entry);
+ }
- /* t0 is HA, t1 is LO */
relocation += addend;
- t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
- t1 |= relocation & 0xffff;
-
- bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
- bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
+ if (info->relocatable)
+ relocation = 0;
+
+ /* First insn is HA, second is LO. */
+ insn = *stub++;
+ insn |= ((relocation + 0x8000) >> 16) & 0xffff;
+ bfd_put_32 (output_bfd, insn, contents + insn_offset);
+ insn_offset += 4;
+
+ insn = *stub++;
+ insn |= relocation & 0xffff;
+ bfd_put_32 (output_bfd, insn, contents + insn_offset);
+ insn_offset += 4;
+ size -= 2;
+
+ while (size != 0)
+ {
+ insn = *stub++;
+ --size;
+ bfd_put_32 (output_bfd, insn, contents + insn_offset);
+ insn_offset += 4;
+ }
/* Rewrite the reloc and convert one of the trailing nop
relocs to describe this relocation. */
BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
/* The relocs are at the bottom 2 bytes */
- rel[0].r_offset += 2;
+ rel[0].r_offset += d_offset;
memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
rel[1].r_offset += 4;
unresolved_reloc = TRUE;
break;
}
- BFD_ASSERT (strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
- || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
+ BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
+ ".got") == 0
+ || strcmp (bfd_get_section_name (sec->owner, sec),
+ ".cgot") == 0);
addend -= sec->output_section->vma + sec->output_offset + 0x8000;
break;
case R_PPC_PLTREL24:
- if (h == NULL || ifunc != NULL)
- break;
- /* Relocation is to the entry for this symbol in the
- procedure linkage table. */
- {
- struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
- info->shared ? addend : 0);
- addend = 0;
- if (ent == NULL
- || htab->plt == NULL)
- {
- /* We didn't make a PLT entry for this symbol. This
- happens when statically linking PIC code, or when
- using -Bsymbolic. */
- break;
- }
+ if (h != NULL && ifunc == NULL)
+ {
+ struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
+ info->shared ? addend : 0);
+ if (ent == NULL
+ || htab->plt == NULL)
+ {
+ /* We didn't make a PLT entry for this symbol. This
+ happens when statically linking PIC code, or when
+ using -Bsymbolic. */
+ }
+ else
+ {
+ /* Relocation is to the entry for this symbol in the
+ procedure linkage table. */
+ unresolved_reloc = FALSE;
+ if (htab->plt_type == PLT_NEW)
+ relocation = (htab->glink->output_section->vma
+ + htab->glink->output_offset
+ + ent->glink_offset);
+ else
+ relocation = (htab->plt->output_section->vma
+ + htab->plt->output_offset
+ + ent->plt.offset);
+ }
+ }
- unresolved_reloc = FALSE;
- if (htab->plt_type == PLT_NEW)
- relocation = (htab->glink->output_section->vma
- + htab->glink->output_offset
- + ent->glink_offset);
- else
- relocation = (htab->plt->output_section->vma
- + htab->plt->output_offset
- + ent->plt.offset);
- }
+ /* R_PPC_PLTREL24 is rather special. If non-zero, the
+ addend specifies the GOT pointer offset within .got2.
+ Don't apply it to the relocation field. */
+ addend = 0;
break;
/* Relocate against _SDA_BASE_. */
}
addend -= SYM_VAL (sda);
- name = bfd_get_section_name (abfd, sec->output_section);
- if (! ((CONST_STRNEQ (name, ".sdata")
- && (name[6] == 0 || name[6] == '.'))
- || (CONST_STRNEQ (name, ".sbss")
- && (name[5] == 0 || name[5] == '.'))))
+ name = bfd_get_section_name (output_bfd, sec->output_section);
+ if (!(strcmp (name, ".sdata") == 0
+ || strcmp (name, ".sbss") == 0))
{
- (*_bfd_error_handler)
- (_("%B: the target (%s) of a %s relocation is "
- "in the wrong output section (%s)"),
+ info->callbacks->einfo
+ (_("%P: %B: the target (%s) of a %s relocation is "
+ "in the wrong output section (%s)\n"),
input_bfd,
sym_name,
howto->name,
}
addend -= SYM_VAL (sda);
- name = bfd_get_section_name (abfd, sec->output_section);
- if (! (CONST_STRNEQ (name, ".sdata2")
- || CONST_STRNEQ (name, ".sbss2")))
+ name = bfd_get_section_name (output_bfd, sec->output_section);
+ if (!(strcmp (name, ".sdata2") == 0
+ || strcmp (name, ".sbss2") == 0))
{
- (*_bfd_error_handler)
- (_("%B: the target (%s) of a %s relocation is "
- "in the wrong output section (%s)"),
+ info->callbacks->einfo
+ (_("%P: %B: the target (%s) of a %s relocation is "
+ "in the wrong output section (%s)\n"),
input_bfd,
sym_name,
howto->name,
}
break;
+ case R_PPC_VLE_LO16A:
+ relocation = relocation + addend;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ relocation, split16a_type);
+ continue;
+
+ case R_PPC_VLE_LO16D:
+ relocation = relocation + addend;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ relocation, split16d_type);
+ continue;
+
+ case R_PPC_VLE_HI16A:
+ relocation = (relocation + addend) >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ relocation, split16a_type);
+ continue;
+
+ case R_PPC_VLE_HI16D:
+ relocation = (relocation + addend) >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ relocation, split16d_type);
+ continue;
+
+ case R_PPC_VLE_HA16A:
+ relocation = (relocation + addend + 0x8000) >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ relocation, split16a_type);
+ continue;
+
+ case R_PPC_VLE_HA16D:
+ relocation = (relocation + addend + 0x8000) >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ relocation, split16d_type);
+ continue;
+
/* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
case R_PPC_EMB_SDA21:
+ case R_PPC_VLE_SDA21:
case R_PPC_EMB_RELSDA:
+ case R_PPC_VLE_SDA21_LO:
{
const char *name;
int reg;
+ unsigned int insn;
struct elf_link_hash_entry *sda = NULL;
if (sec == NULL || sec->output_section == NULL)
break;
}
- name = bfd_get_section_name (abfd, sec->output_section);
- if (((CONST_STRNEQ (name, ".sdata")
- && (name[6] == 0 || name[6] == '.'))
- || (CONST_STRNEQ (name, ".sbss")
- && (name[5] == 0 || name[5] == '.'))))
+ name = bfd_get_section_name (output_bfd, sec->output_section);
+ if (strcmp (name, ".sdata") == 0
+ || strcmp (name, ".sbss") == 0)
{
reg = 13;
sda = htab->sdata[0].sym;
}
- else if (CONST_STRNEQ (name, ".sdata2")
- || CONST_STRNEQ (name, ".sbss2"))
+ else if (strcmp (name, ".sdata2") == 0
+ || strcmp (name, ".sbss2") == 0)
{
reg = 2;
sda = htab->sdata[1].sym;
}
else
{
- (*_bfd_error_handler)
- (_("%B: the target (%s) of a %s relocation is "
- "in the wrong output section (%s)"),
+ info->callbacks->einfo
+ (_("%P: %B: the target (%s) of a %s relocation is "
+ "in the wrong output section (%s)\n"),
input_bfd,
sym_name,
howto->name,
addend -= SYM_VAL (sda);
}
- if (r_type == R_PPC_EMB_SDA21)
+ insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
+ if (reg == 0
+ && (r_type == R_PPC_VLE_SDA21
+ || r_type == R_PPC_VLE_SDA21_LO))
{
- bfd_vma insn; /* Fill in register field. */
+ relocation = relocation + addend;
+ addend = 0;
+
+ /* Force e_li insn, keeping RT from original insn. */
+ insn &= 0x1f << 21;
+ insn |= 28u << 26;
+
+ /* We have an li20 field, bits 17..20, 11..15, 21..31. */
+ /* Top 4 bits of value to 17..20. */
+ insn |= (relocation & 0xf0000) >> 5;
+ /* Next 5 bits of the value to 11..15. */
+ insn |= (relocation & 0xf800) << 5;
+ /* And the final 11 bits of the value to bits 21 to 31. */
+ insn |= relocation & 0x7ff;
- insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
- insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
+
+ if (r_type == R_PPC_VLE_SDA21
+ && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
+ goto overflow;
+ continue;
+ }
+ else if (r_type == R_PPC_EMB_SDA21
+ || r_type == R_PPC_VLE_SDA21
+ || r_type == R_PPC_VLE_SDA21_LO)
+ {
+ /* Fill in register field. */
+ insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
}
+ bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
}
break;
+ case R_PPC_VLE_SDAREL_LO16A:
+ case R_PPC_VLE_SDAREL_LO16D:
+ case R_PPC_VLE_SDAREL_HI16A:
+ case R_PPC_VLE_SDAREL_HI16D:
+ case R_PPC_VLE_SDAREL_HA16A:
+ case R_PPC_VLE_SDAREL_HA16D:
+ {
+ bfd_vma value;
+ const char *name;
+ //int reg;
+ struct elf_link_hash_entry *sda = NULL;
+
+ if (sec == NULL || sec->output_section == NULL)
+ {
+ unresolved_reloc = TRUE;
+ break;
+ }
+
+ name = bfd_get_section_name (output_bfd, sec->output_section);
+ if (strcmp (name, ".sdata") == 0
+ || strcmp (name, ".sbss") == 0)
+ {
+ //reg = 13;
+ sda = htab->sdata[0].sym;
+ }
+ else if (strcmp (name, ".sdata2") == 0
+ || strcmp (name, ".sbss2") == 0)
+ {
+ //reg = 2;
+ sda = htab->sdata[1].sym;
+ }
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%B: the target (%s) of a %s relocation is "
+ "in the wrong output section (%s)"),
+ input_bfd,
+ sym_name,
+ howto->name,
+ name);
+
+ bfd_set_error (bfd_error_bad_value);
+ ret = FALSE;
+ continue;
+ }
+
+ if (sda != NULL)
+ {
+ if (!is_static_defined (sda))
+ {
+ unresolved_reloc = TRUE;
+ break;
+ }
+ }
+
+ value = (sda->root.u.def.section->output_section->vma
+ + sda->root.u.def.section->output_offset
+ + addend);
+
+ if (r_type == R_PPC_VLE_SDAREL_LO16A)
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ value, split16a_type);
+ else if (r_type == R_PPC_VLE_SDAREL_LO16D)
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ value, split16d_type);
+ else if (r_type == R_PPC_VLE_SDAREL_HI16A)
+ {
+ value = value >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ value, split16a_type);
+ }
+ else if (r_type == R_PPC_VLE_SDAREL_HI16D)
+ {
+ value = value >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ value, split16d_type);
+ }
+ else if (r_type == R_PPC_VLE_SDAREL_HA16A)
+ {
+ value = (value + 0x8000) >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ value, split16a_type);
+ }
+ else if (r_type == R_PPC_VLE_SDAREL_HA16D)
+ {
+ value = (value + 0x8000) >> 16;
+ ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
+ value, split16d_type);
+ }
+ }
+ continue;
+
/* Relocate against the beginning of the section. */
case R_PPC_SECTOFF:
case R_PPC_SECTOFF_LO:
case R_PPC_EMB_RELST_HI:
case R_PPC_EMB_RELST_HA:
case R_PPC_EMB_BIT_FLD:
- (*_bfd_error_handler)
- (_("%B: relocation %s is not yet supported for symbol %s."),
+ info->callbacks->einfo
+ (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
input_bfd,
howto->name,
sym_name);
Bits 0:15 are not used. */
addend += 0x8000;
break;
+
+ case R_PPC_ADDR16:
+ case R_PPC_ADDR16_LO:
+ case R_PPC_GOT16:
+ case R_PPC_GOT16_LO:
+ case R_PPC_SDAREL16:
+ case R_PPC_SECTOFF:
+ case R_PPC_SECTOFF_LO:
+ case R_PPC_DTPREL16:
+ case R_PPC_DTPREL16_LO:
+ case R_PPC_TPREL16:
+ case R_PPC_TPREL16_LO:
+ case R_PPC_GOT_TLSGD16:
+ case R_PPC_GOT_TLSGD16_LO:
+ case R_PPC_GOT_TLSLD16:
+ case R_PPC_GOT_TLSLD16_LO:
+ case R_PPC_GOT_DTPREL16:
+ case R_PPC_GOT_DTPREL16_LO:
+ case R_PPC_GOT_TPREL16:
+ case R_PPC_GOT_TPREL16_LO:
+ {
+ /* The 32-bit ABI lacks proper relocations to deal with
+ certain 64-bit instructions. Prevent damage to bits
+ that make up part of the insn opcode. */
+ unsigned int insn, mask, lobit;
+
+ insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
+ mask = 0;
+ if (is_insn_ds_form (insn))
+ mask = 3;
+ else if (is_insn_dq_form (insn))
+ mask = 15;
+ else
+ break;
+ lobit = mask & (relocation + addend);
+ if (lobit != 0)
+ {
+ addend -= lobit;
+ info->callbacks->einfo
+ (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
+ input_bfd, input_section, rel->r_offset,
+ howto->name, sym_name, mask + 1);
+ bfd_set_error (bfd_error_bad_value);
+ ret = FALSE;
+ }
+ addend += insn & mask;
+ }
+ break;
}
#ifdef DEBUG
if (unresolved_reloc
&& !((input_section->flags & SEC_DEBUGGING) != 0
- && h->def_dynamic))
+ && h->def_dynamic)
+ && _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset) != (bfd_vma) -1)
{
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
- input_bfd,
- input_section,
- (long) rel->r_offset,
+ info->callbacks->einfo
+ (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
+ input_bfd, input_section, rel->r_offset,
howto->name,
sym_name);
ret = FALSE;
}
- r = _bfd_final_link_relocate (howto,
- input_bfd,
- input_section,
- contents,
- rel->r_offset,
- relocation,
- addend);
+ /* 16-bit fields in insns mostly have signed values, but a
+ few insns have 16-bit unsigned values. Really, we should
+ have different reloc types. */
+ if (howto->complain_on_overflow != complain_overflow_dont
+ && howto->dst_mask == 0xffff
+ && (input_section->flags & SEC_CODE) != 0)
+ {
+ enum complain_overflow complain = complain_overflow_signed;
+
+ if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
+ {
+ unsigned int insn;
+
+ insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
+ if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
+ complain = complain_overflow_bitfield;
+ else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
+ || (insn & (0x3f << 26)) == 24u << 26 /* ori */
+ || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
+ complain = complain_overflow_unsigned;
+ }
+ if (howto->complain_on_overflow != complain)
+ {
+ alt_howto = *howto;
+ alt_howto.complain_on_overflow = complain;
+ howto = &alt_howto;
+ }
+ }
+
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
+ rel->r_offset, relocation, addend);
if (r != bfd_reloc_ok)
{
if (r == bfd_reloc_overflow)
{
- if (warned)
- continue;
- if (h != NULL
- && h->root.type == bfd_link_hash_undefweak
- && howto->pc_relative)
+ overflow:
+ /* On code like "if (foo) foo();" don't report overflow
+ on a branch to zero when foo is undefined. */
+ if (!warned
+ && !(h != NULL
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined)
+ && is_branch_reloc (r_type)))
{
- /* Assume this is a call protected by other code that
- detect the symbol is undefined. If this is the case,
- we can safely ignore the overflow. If not, the
- program is hosed anyway, and a little warning isn't
- going to help. */
-
- continue;
+ if (!((*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), sym_name,
+ howto->name, rel->r_addend,
+ input_bfd, input_section, rel->r_offset)))
+ return FALSE;
}
-
- if (! (*info->callbacks->reloc_overflow) (info,
- (h ? &h->root : NULL),
- sym_name,
- howto->name,
- rel->r_addend,
- input_bfd,
- input_section,
- rel->r_offset))
- return FALSE;
}
else
{
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
- input_bfd, input_section,
- (long) rel->r_offset, howto->name, sym_name, (int) r);
+ info->callbacks->einfo
+ (_("%P: %H: %s reloc against `%s': error %d\n"),
+ input_bfd, input_section, rel->r_offset,
+ howto->name, sym_name, (int) r);
ret = FALSE;
}
}
fprintf (stderr, "\n");
#endif
+ if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
+ && input_section->size != input_section->rawsize
+ && (strcmp (input_section->output_section->name, ".init") == 0
+ || strcmp (input_section->output_section->name, ".fini") == 0))
+ {
+ /* Branch around the trampolines. */
+ unsigned int insn = B + input_section->size - input_section->rawsize;
+ bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
+ }
+
+ if (htab->params->ppc476_workaround
+ && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
+ && (!info->relocatable
+ || (input_section->output_section->alignment_power
+ >= htab->params->pagesize_p2)))
+ {
+ struct ppc_elf_relax_info *relax_info;
+ bfd_vma start_addr, end_addr, addr;
+ bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
+
+ relax_info = elf_section_data (input_section)->sec_info;
+ if (relax_info->workaround_size != 0)
+ {
+ bfd_byte *p;
+ unsigned int n;
+ bfd_byte fill[4];
+
+ bfd_put_32 (input_bfd, BA, fill);
+ p = contents + input_section->size - relax_info->workaround_size;
+ n = relax_info->workaround_size >> 2;
+ while (n--)
+ {
+ memcpy (p, fill, 4);
+ p += 4;
+ }
+ }
+
+ /* The idea is: Replace the last instruction on a page with a
+ branch to a patch area. Put the insn there followed by a
+ branch back to the next page. Complicated a little by
+ needing to handle moved conditional branches, and by not
+ wanting to touch data-in-text. */
+
+ start_addr = (input_section->output_section->vma
+ + input_section->output_offset);
+ end_addr = (start_addr + input_section->size
+ - relax_info->workaround_size);
+ for (addr = ((start_addr & -pagesize) + pagesize - 4);
+ addr < end_addr;
+ addr += pagesize)
+ {
+ bfd_vma offset = addr - start_addr;
+ Elf_Internal_Rela *lo, *hi;
+ bfd_boolean is_data;
+ bfd_vma patch_off, patch_addr;
+ unsigned int insn;
+
+ /* Do we have a data reloc at this offset? If so, leave
+ the word alone. */
+ is_data = FALSE;
+ lo = relocs;
+ hi = relend;
+ rel = NULL;
+ while (lo < hi)
+ {
+ rel = lo + (hi - lo) / 2;
+ if (rel->r_offset < offset)
+ lo = rel + 1;
+ else if (rel->r_offset > offset + 3)
+ hi = rel;
+ else
+ {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_PPC_ADDR32:
+ case R_PPC_UADDR32:
+ case R_PPC_REL32:
+ case R_PPC_ADDR30:
+ is_data = TRUE;
+ break;
+ default:
+ break;
+ }
+ break;
+ }
+ }
+ if (is_data)
+ continue;
+
+ /* Some instructions can be left alone too. Unconditional
+ branches, except for bcctr with BO=0x14 (bctr, bctrl),
+ avoid the icache failure.
+
+ The problem occurs due to prefetch across a page boundary
+ where stale instructions can be fetched from the next
+ page, and the mechanism for flushing these bad
+ instructions fails under certain circumstances. The
+ unconditional branches:
+ 1) Branch: b, bl, ba, bla,
+ 2) Branch Conditional: bc, bca, bcl, bcla,
+ 3) Branch Conditional to Link Register: bclr, bclrl,
+ where (2) and (3) have BO=0x14 making them unconditional,
+ prevent the bad prefetch because the prefetch itself is
+ affected by these instructions. This happens even if the
+ instruction is not executed.
+
+ A bctr example:
+ .
+ . lis 9,new_page@ha
+ . addi 9,9,new_page@l
+ . mtctr 9
+ . bctr
+ . nop
+ . nop
+ . new_page:
+ .
+ The bctr is not predicted taken due to ctr not being
+ ready, so prefetch continues on past the bctr into the
+ new page which might have stale instructions. If they
+ fail to be flushed, then they will be executed after the
+ bctr executes. Either of the following modifications
+ prevent the bad prefetch from happening in the first
+ place:
+ .
+ . lis 9,new_page@ha lis 9,new_page@ha
+ . addi 9,9,new_page@l addi 9,9,new_page@l
+ . mtctr 9 mtctr 9
+ . bctr bctr
+ . nop b somewhere_else
+ . b somewhere_else nop
+ . new_page: new_page:
+ . */
+ insn = bfd_get_32 (input_bfd, contents + offset);
+ if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
+ || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
+ && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
+ || ((insn & (0x3f << 26)) == (19u << 26)
+ && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
+ && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
+ continue;
+
+ patch_addr = (start_addr + input_section->size
+ - relax_info->workaround_size);
+ patch_addr = (patch_addr + 15) & -16;
+ patch_off = patch_addr - start_addr;
+ bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
+
+ if (rel != NULL
+ && rel->r_offset >= offset
+ && rel->r_offset < offset + 4)
+ {
+ /* If the insn we are patching had a reloc, adjust the
+ reloc r_offset so that the reloc applies to the moved
+ location. This matters for -r and --emit-relocs. */
+ if (rel + 1 != relend)
+ {
+ Elf_Internal_Rela tmp = *rel;
+
+ /* Keep the relocs sorted by r_offset. */
+ memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
+ relend[-1] = tmp;
+ }
+ relend[-1].r_offset += patch_off - offset;
+ }
+ else
+ rel = NULL;
+
+ if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
+ && (insn & 2) == 0 /* relative */)
+ {
+ bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
+
+ delta += offset - patch_off;
+ if (info->relocatable && rel != NULL)
+ delta = 0;
+ if (!info->relocatable && rel != NULL)
+ {
+ enum elf_ppc_reloc_type r_type;
+
+ r_type = ELF32_R_TYPE (relend[-1].r_info);
+ if (r_type == R_PPC_REL14_BRTAKEN)
+ insn |= BRANCH_PREDICT_BIT;
+ else if (r_type == R_PPC_REL14_BRNTAKEN)
+ insn &= ~BRANCH_PREDICT_BIT;
+ else
+ BFD_ASSERT (r_type == R_PPC_REL14);
+
+ if ((r_type == R_PPC_REL14_BRTAKEN
+ || r_type == R_PPC_REL14_BRNTAKEN)
+ && delta + 0x8000 < 0x10000
+ && (bfd_signed_vma) delta < 0)
+ insn ^= BRANCH_PREDICT_BIT;
+ }
+ if (delta + 0x8000 < 0x10000)
+ {
+ bfd_put_32 (input_bfd,
+ (insn & ~0xfffc) | (delta & 0xfffc),
+ contents + patch_off);
+ patch_off += 4;
+ bfd_put_32 (input_bfd,
+ B | ((offset + 4 - patch_off) & 0x3fffffc),
+ contents + patch_off);
+ patch_off += 4;
+ }
+ else
+ {
+ if (rel != NULL)
+ {
+ unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
+
+ relend[-1].r_offset += 8;
+ relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
+ }
+ bfd_put_32 (input_bfd,
+ (insn & ~0xfffc) | 8,
+ contents + patch_off);
+ patch_off += 4;
+ bfd_put_32 (input_bfd,
+ B | ((offset + 4 - patch_off) & 0x3fffffc),
+ contents + patch_off);
+ patch_off += 4;
+ bfd_put_32 (input_bfd,
+ B | ((delta - 8) & 0x3fffffc),
+ contents + patch_off);
+ patch_off += 4;
+ }
+ }
+ else
+ {
+ bfd_put_32 (input_bfd, insn, contents + patch_off);
+ patch_off += 4;
+ bfd_put_32 (input_bfd,
+ B | ((offset + 4 - patch_off) & 0x3fffffc),
+ contents + patch_off);
+ patch_off += 4;
+ }
+ BFD_ASSERT (patch_off <= input_section->size);
+ relax_info->workaround_size = input_section->size - patch_off;
+ }
+ }
+
return ret;
}
\f
htab->plt->contents + ent->plt.offset + 28);
/* Fill in the GOT entry corresponding to this PLT slot with
- the address immediately after the the "bctr" instruction
+ the address immediately after the "bctr" instruction
in this PLT entry. */
bfd_put_32 (output_bfd, (htab->plt->output_section->vma
+ htab->plt->output_offset
p = (unsigned char *) htab->glink->contents + ent->glink_offset;
- if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
+ if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
{
bfd_put_32 (output_bfd, LWZ_11_3, p);
p += 4;
fprintf (stderr, "\n");
#endif
- /* Mark some specially defined symbols as absolute. */
- if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || (!htab->is_vxworks
- && (h == htab->elf.hgot
- || strcmp (h->root.root.string,
- "_PROCEDURE_LINKAGE_TABLE_") == 0)))
- sym->st_shndx = SHN_ABS;
-
return TRUE;
}
\f
static enum elf_reloc_type_class
-ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
+ppc_elf_reloc_type_class (const struct bfd_link_info *info,
+ const asection *rel_sec,
+ const Elf_Internal_Rela *rela)
{
+ struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
+
+ if (rel_sec == htab->reliplt)
+ return reloc_class_ifunc;
+
switch (ELF32_R_TYPE (rela->r_info))
{
case R_PPC_RELATIVE:
return reloc_class_relative;
- case R_PPC_REL24:
- case R_PPC_ADDR24:
case R_PPC_JMP_SLOT:
return reloc_class_plt;
case R_PPC_COPY:
htab = ppc_elf_hash_table (info);
dynobj = elf_hash_table (info)->dynobj;
- sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+ sdyn = bfd_get_linker_section (dynobj, ".dynamic");
if (htab->is_vxworks)
- splt = bfd_get_section_by_name (dynobj, ".plt");
+ splt = bfd_get_linker_section (dynobj, ".plt");
else
splt = NULL;
}
else
{
- (*_bfd_error_handler) (_("%s not defined in linker created %s"),
- htab->elf.hgot->root.root.string,
- (htab->sgotplt != NULL
- ? htab->sgotplt->name : htab->got->name));
+ info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
+ htab->elf.hgot->root.root.string,
+ (htab->sgotplt != NULL
+ ? htab->sgotplt->name : htab->got->name));
bfd_set_error (bfd_error_bad_value);
ret = FALSE;
}
p += htab->glink_pltresolve;
endp = htab->glink->contents;
endp += htab->glink->size - GLINK_PLTRESOLVE;
- while (p < endp - 8 * 4)
+ while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
{
bfd_put_32 (output_bfd, B + endp - p, p);
p += 4;
+ htab->glink->output_section->vma
+ htab->glink->output_offset);
+ if (htab->params->ppc476_workaround)
+ {
+ /* Ensure that a call stub at the end of a page doesn't
+ result in prefetch over the end of the page into the
+ glink branch table. */
+ bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
+ bfd_vma page_addr;
+ bfd_vma glink_start = (htab->glink->output_section->vma
+ + htab->glink->output_offset);
+
+ for (page_addr = res0 & -pagesize;
+ page_addr > glink_start;
+ page_addr -= pagesize)
+ {
+ /* We have a plt call stub that may need fixing. */
+ bfd_byte *loc;
+ unsigned int insn;
+
+ loc = htab->glink->contents + page_addr - 4 - glink_start;
+ insn = bfd_get_32 (output_bfd, loc);
+ if (insn == BCTR)
+ {
+ /* By alignment, we know that there must be at least
+ one other call stub before this one. */
+ insn = bfd_get_32 (output_bfd, loc - 16);
+ if (insn == BCTR)
+ bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
+ else
+ bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
+ }
+ }
+ }
+
/* Last comes the PLTresolve stub. */
if (info->shared)
{
for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
{
- bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
+ unsigned int insn = pic_plt_resolve[i];
+
+ if (htab->params->ppc476_workaround && insn == NOP)
+ insn = BA + 0;
+ bfd_put_32 (output_bfd, insn, p);
p += 4;
}
p -= 4 * ARRAY_SIZE (pic_plt_resolve);
{
for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
{
- bfd_put_32 (output_bfd, plt_resolve[i], p);
+ unsigned int insn = plt_resolve[i];
+
+ if (htab->params->ppc476_workaround && insn == NOP)
+ insn = BA + 0;
+ bfd_put_32 (output_bfd, insn, p);
p += 4;
}
p -= 4 * ARRAY_SIZE (plt_resolve);
}
}
+ if (htab->glink_eh_frame != NULL
+ && htab->glink_eh_frame->contents != NULL)
+ {
+ unsigned char *p = htab->glink_eh_frame->contents;
+ bfd_vma val;
+
+ p += sizeof (glink_eh_frame_cie);
+ /* FDE length. */
+ p += 4;
+ /* CIE pointer. */
+ p += 4;
+ /* Offset to .glink. */
+ val = (htab->glink->output_section->vma
+ + htab->glink->output_offset);
+ val -= (htab->glink_eh_frame->output_section->vma
+ + htab->glink_eh_frame->output_offset);
+ val -= p - htab->glink_eh_frame->contents;
+ bfd_put_32 (htab->elf.dynobj, val, p);
+
+ if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
+ && !_bfd_elf_write_section_eh_frame (output_bfd, info,
+ htab->glink_eh_frame,
+ htab->glink_eh_frame->contents))
+ return FALSE;
+ }
+
return ret;
}
\f
-#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
+#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
#define TARGET_LITTLE_NAME "elf32-powerpcle"
-#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
+#define TARGET_BIG_SYM powerpc_elf32_vec
#define TARGET_BIG_NAME "elf32-powerpc"
#define ELF_ARCH bfd_arch_powerpc
+#define ELF_TARGET_ID PPC32_ELF_DATA
#define ELF_MACHINE_CODE EM_PPC
#ifdef __QNXTARGET__
#define ELF_MAXPAGESIZE 0x1000
+#define ELF_COMMONPAGESIZE 0x1000
#else
#define ELF_MAXPAGESIZE 0x10000
+#define ELF_COMMONPAGESIZE 0x10000
#endif
#define ELF_MINPAGESIZE 0x1000
-#define ELF_COMMONPAGESIZE 0x1000
#define elf_info_to_howto ppc_elf_info_to_howto
#ifdef EM_CYGNUS_POWERPC
#define elf_backend_can_gc_sections 1
#define elf_backend_can_refcount 1
#define elf_backend_rela_normal 1
+#define elf_backend_caches_rawsize 1
#define bfd_elf32_mkobject ppc_elf_mkobject
#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
-#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
+#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
#define elf_backend_fake_sections ppc_elf_fake_sections
#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
+#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
#define elf_backend_write_core_note ppc_elf_write_core_note
#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
#define elf_backend_action_discarded ppc_elf_action_discarded
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
-#define elf_backend_post_process_headers _bfd_elf_set_osabi
+#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
+#define elf_backend_section_processing ppc_elf_section_processing
+
+#include "elf32-target.h"
+
+/* FreeBSD Target */
+
+#undef TARGET_LITTLE_SYM
+#undef TARGET_LITTLE_NAME
+
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
+
+#undef ELF_OSABI
+#define ELF_OSABI ELFOSABI_FREEBSD
+
+#undef elf32_bed
+#define elf32_bed elf32_powerpc_fbsd_bed
#include "elf32-target.h"
#undef TARGET_LITTLE_NAME
#undef TARGET_BIG_SYM
-#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
+#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
+#undef ELF_OSABI
+
/* VxWorks uses the elf default section flags for .plt. */
static const struct bfd_elf_special_section *
ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
projects / deliverable / binutils-gdb.git / blobdiff