/* IBM S/390-specific support for 64-bit ELF
- Copyright (C) 2000-2017 Free Software Foundation, Inc.
+ Copyright (C) 2000-2021 Free Software Foundation, Inc.
Contributed Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of BFD, the Binary File Descriptor library.
0, /* dst_mask */
FALSE), /* pcrel_offset */
- HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
- HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
- bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
- HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
- HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
+ HOWTO(R_390_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_8", FALSE, 0,0x000000ff, FALSE),
+ HOWTO(R_390_12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
+ bfd_elf_generic_reloc, "R_390_12", FALSE, 0,0x00000fff, FALSE),
+ HOWTO(R_390_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_16", FALSE, 0,0x0000ffff, FALSE),
+ HOWTO(R_390_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_32", FALSE, 0,0xffffffff, FALSE),
HOWTO(R_390_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
+ bfd_elf_generic_reloc, "R_390_PC32", FALSE, 0,0xffffffff, TRUE),
HOWTO(R_390_GOT12, 0, 1, 12, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
+ bfd_elf_generic_reloc, "R_390_GOT12", FALSE, 0,0x00000fff, FALSE),
HOWTO(R_390_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
+ bfd_elf_generic_reloc, "R_390_GOT32", FALSE, 0,0xffffffff, FALSE),
HOWTO(R_390_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
- HOWTO(R_390_COPY, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,MINUS_ONE, FALSE),
- HOWTO(R_390_GLOB_DAT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_PLT32", FALSE, 0,0xffffffff, TRUE),
+ HOWTO(R_390_COPY, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_COPY", FALSE, 0,MINUS_ONE, FALSE),
+ HOWTO(R_390_GLOB_DAT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GLOB_DAT", FALSE, 0,MINUS_ONE, FALSE),
- HOWTO(R_390_JMP_SLOT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_JMP_SLOT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_JMP_SLOT", FALSE, 0,MINUS_ONE, FALSE),
- HOWTO(R_390_RELATIVE, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_RELATIVE, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_RELATIVE", FALSE, 0,MINUS_ONE, FALSE),
- HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_GOTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTOFF32", FALSE, 0,MINUS_ONE, FALSE),
- HOWTO(R_390_GOTPC, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,MINUS_ONE, TRUE),
- HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
- HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
- HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
- HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_GOTPC, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_GOTPC", FALSE, 0,MINUS_ONE, TRUE),
+ HOWTO(R_390_GOT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_GOT16", FALSE, 0,0x0000ffff, FALSE),
+ HOWTO(R_390_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_PC16", FALSE, 0,0x0000ffff, TRUE),
+ HOWTO(R_390_PC16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_PC16DBL", FALSE, 0,0x0000ffff, TRUE),
+ HOWTO(R_390_PLT16DBL, 1, 1, 16, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLT16DBL", FALSE, 0,0x0000ffff, TRUE),
HOWTO(R_390_PC32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
+ bfd_elf_generic_reloc, "R_390_PC32DBL", FALSE, 0,0xffffffff, TRUE),
HOWTO(R_390_PLT32DBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLT32DBL", FALSE, 0,0xffffffff, TRUE),
- HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_GOTPCDBL, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTPCDBL", FALSE, 0,MINUS_ONE, TRUE),
- HOWTO(R_390_64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_64", FALSE, 0,MINUS_ONE, FALSE),
+ HOWTO(R_390_64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_64", FALSE, 0,MINUS_ONE, FALSE),
HOWTO(R_390_PC64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC64", FALSE, 0,MINUS_ONE, TRUE),
+ bfd_elf_generic_reloc, "R_390_PC64", FALSE, 0,MINUS_ONE, TRUE),
HOWTO(R_390_GOT64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_GOT64", FALSE, 0,MINUS_ONE, FALSE),
+ bfd_elf_generic_reloc, "R_390_GOT64", FALSE, 0,MINUS_ONE, FALSE),
HOWTO(R_390_PLT64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PLT64", FALSE, 0,MINUS_ONE, TRUE),
+ bfd_elf_generic_reloc, "R_390_PLT64", FALSE, 0,MINUS_ONE, TRUE),
HOWTO(R_390_GOTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,MINUS_ONE, TRUE),
- HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_GOTENT", FALSE, 0,MINUS_ONE, TRUE),
+ HOWTO(R_390_GOTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTOFF16", FALSE, 0,0x0000ffff, FALSE),
- HOWTO(R_390_GOTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_GOTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTOFF64", FALSE, 0,MINUS_ONE, FALSE),
HOWTO(R_390_GOTPLT12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_390_GOTPLT12", FALSE, 0,0x00000fff, FALSE),
- HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_GOTPLT16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTPLT16", FALSE, 0,0x0000ffff, FALSE),
HOWTO(R_390_GOTPLT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTPLT32", FALSE, 0,0xffffffff, FALSE),
bfd_elf_generic_reloc, "R_390_GOTPLT64", FALSE, 0,MINUS_ONE, FALSE),
HOWTO(R_390_GOTPLTENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_GOTPLTENT",FALSE, 0,MINUS_ONE, TRUE),
- HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_PLTOFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLTOFF16", FALSE, 0,0x0000ffff, FALSE),
- HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_PLTOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLTOFF32", FALSE, 0,0xffffffff, FALSE),
- HOWTO(R_390_PLTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_PLTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLTOFF64", FALSE, 0,MINUS_ONE, FALSE),
HOWTO(R_390_TLS_LOAD, 0, 0, 0, FALSE, 0, complain_overflow_dont,
s390_tls_reloc, "R_390_TLS_LOAD", FALSE, 0, 0, FALSE),
HOWTO(R_390_TLS_LDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
s390_tls_reloc, "R_390_TLS_LDCALL", FALSE, 0, 0, FALSE),
EMPTY_HOWTO (R_390_TLS_GD32), /* Empty entry for R_390_TLS_GD32. */
- HOWTO(R_390_TLS_GD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_TLS_GD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_GD64", FALSE, 0, MINUS_ONE, FALSE),
HOWTO(R_390_TLS_GOTIE12, 0, 1, 12, FALSE, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_390_TLS_GOTIE12", FALSE, 0, 0x00000fff, FALSE),
HOWTO(R_390_TLS_LDM64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_LDM64", FALSE, 0, MINUS_ONE, FALSE),
EMPTY_HOWTO (R_390_TLS_IE32), /* Empty entry for R_390_TLS_IE32. */
- HOWTO(R_390_TLS_IE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_TLS_IE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_IE64", FALSE, 0, MINUS_ONE, FALSE),
HOWTO(R_390_TLS_IEENT, 1, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_IEENT", FALSE, 0, MINUS_ONE, TRUE),
EMPTY_HOWTO (R_390_TLS_LE32), /* Empty entry for R_390_TLS_LE32. */
- HOWTO(R_390_TLS_LE64, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_TLS_LE64, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_LE64", FALSE, 0, MINUS_ONE, FALSE),
EMPTY_HOWTO (R_390_TLS_LDO32), /* Empty entry for R_390_TLS_LDO32. */
HOWTO(R_390_TLS_LDO64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_DTPOFF", FALSE, 0, MINUS_ONE, FALSE),
HOWTO(R_390_TLS_TPOFF, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_TLS_TPOFF", FALSE, 0, MINUS_ONE, FALSE),
- HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
+ HOWTO(R_390_20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
s390_elf_ldisp_reloc, "R_390_20", FALSE, 0,0x0fffff00, FALSE),
HOWTO(R_390_GOT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
s390_elf_ldisp_reloc, "R_390_GOT20", FALSE, 0,0x0fffff00, FALSE),
- HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
+ HOWTO(R_390_GOTPLT20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
s390_elf_ldisp_reloc, "R_390_GOTPLT20", FALSE, 0,0x0fffff00, FALSE),
HOWTO(R_390_TLS_GOTIE20, 0, 2, 20, FALSE, 8, complain_overflow_dont,
s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
HOWTO(R_390_IRELATIVE, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_IRELATIVE", FALSE, 0, MINUS_ONE, FALSE),
- HOWTO(R_390_PC12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC12DBL", FALSE, 0,0x00000fff, TRUE),
- HOWTO(R_390_PLT12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_PC12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_PC12DBL", FALSE, 0,0x00000fff, TRUE),
+ HOWTO(R_390_PLT12DBL, 1, 1, 12, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLT12DBL", FALSE, 0,0x00000fff, TRUE),
- HOWTO(R_390_PC24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_390_PC24DBL", FALSE, 0,0x00ffffff, TRUE),
- HOWTO(R_390_PLT24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
+ HOWTO(R_390_PC24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_390_PC24DBL", FALSE, 0,0x00ffffff, TRUE),
+ HOWTO(R_390_PLT24DBL, 1, 2, 24, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_390_PLT24DBL", FALSE, 0,0x00ffffff, TRUE),
};
HOWTO (R_390_GNU_VTENTRY, 0,4,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_390_GNU_VTENTRY", FALSE,0,0, FALSE);
static reloc_howto_type *
-elf_s390_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+elf_s390_reloc_type_lookup (bfd *abfd,
bfd_reloc_code_real_type code)
{
switch (code)
default:
break;
}
- return 0;
+
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code);
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
}
static reloc_howto_type *
/* We need to use ELF64_R_TYPE so we have our own copy of this function,
and elf64-s390.c has its own copy. */
-static void
+static bfd_boolean
elf_s390_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
unsigned int r_type = ELF64_R_TYPE(dst->r_info);
+
switch (r_type)
{
case R_390_GNU_VTINHERIT:
if (r_type >= sizeof (elf_howto_table) / sizeof (elf_howto_table[0]))
{
/* xgettext:c-format */
- _bfd_error_handler (_("%B: invalid relocation type %d"),
- abfd, (int) r_type);
- r_type = R_390_NONE;
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
cache_ptr->howto = &elf_howto_table[r_type];
}
+ return TRUE;
}
/* A relocation function which doesn't do anything. */
#define RELA_ENTRY_SIZE sizeof (Elf64_External_Rela)
-/* The first three entries in a procedure linkage table are reserved,
+/* The first three entries in a global offset table are reserved,
and the initial contents are unimportant (we zero them out).
Subsequent entries look like this. See the SVR4 ABI 386
supplement to see how this works. */
and insert the address in the GOT.
PLT1: LARL 1,<fn>@GOTENT # 6 bytes Load address of GOT entry in r1
- LG 1,0(1) # 6 bytes Load address from GOT in r1
- BCR 15,1 # 2 bytes Jump to address
- RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
- LGF 1,12(1) # 6 bytes Load offset in symbl table in r1
- BRCL 15,-x # 6 bytes Jump to start of PLT
- .long ? # 4 bytes offset into .rela.plt
+ LG 1,0(1) # 6 bytes Load address from GOT in r1
+ BCR 15,1 # 2 bytes Jump to address
+ RET1: BASR 1,0 # 2 bytes Return from GOT 1st time
+ LGF 1,12(1) # 6 bytes Load rela.plt offset into r1
+ BRCL 15,-x # 6 bytes Jump to first PLT entry
+ .long ? # 4 bytes offset into .rela.plt
Total = 32 bytes per PLT entry
Fixup at offset 2: relative address to GOT entry
static const bfd_byte elf_s390x_plt_entry[PLT_ENTRY_SIZE] =
{
- 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
- 0xe3, 0x10, 0x10, 0x00, 0x00, 0x04, /* lg %r1,0(%r1) */
- 0x07, 0xf1, /* br %r1 */
- 0x0d, 0x10, /* basr %r1,%r0 */
- 0xe3, 0x10, 0x10, 0x0c, 0x00, 0x14, /* lgf %r1,12(%r1) */
- 0xc0, 0xf4, 0x00, 0x00, 0x00, 0x00, /* jg first plt */
- 0x00, 0x00, 0x00, 0x00 /* .long 0x00000000 */
+ 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
+ 0xe3, 0x10, 0x10, 0x00, 0x00, 0x04, /* lg %r1,0(%r1) */
+ 0x07, 0xf1, /* br %r1 */
+ 0x0d, 0x10, /* basr %r1,%r0 */
+ 0xe3, 0x10, 0x10, 0x0c, 0x00, 0x14, /* lgf %r1,12(%r1) */
+ 0xc0, 0xf4, 0x00, 0x00, 0x00, 0x00, /* jg first plt */
+ 0x00, 0x00, 0x00, 0x00 /* .long 0x00000000 */
};
/* The first PLT entry pushes the offset into the symbol table
static const bfd_byte elf_s390x_first_plt_entry[PLT_FIRST_ENTRY_SIZE] =
{
- 0xe3, 0x10, 0xf0, 0x38, 0x00, 0x24, /* stg %r1,56(%r15) */
- 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
- 0xd2, 0x07, 0xf0, 0x30, 0x10, 0x08, /* mvc 48(8,%r15),8(%r1) */
- 0xe3, 0x10, 0x10, 0x10, 0x00, 0x04, /* lg %r1,16(%r1) */
- 0x07, 0xf1, /* br %r1 */
- 0x07, 0x00, /* nopr %r0 */
- 0x07, 0x00, /* nopr %r0 */
- 0x07, 0x00 /* nopr %r0 */
+ 0xe3, 0x10, 0xf0, 0x38, 0x00, 0x24, /* stg %r1,56(%r15) */
+ 0xc0, 0x10, 0x00, 0x00, 0x00, 0x00, /* larl %r1,. */
+ 0xd2, 0x07, 0xf0, 0x30, 0x10, 0x08, /* mvc 48(8,%r15),8(%r1) */
+ 0xe3, 0x10, 0x10, 0x10, 0x00, 0x04, /* lg %r1,16(%r1) */
+ 0x07, 0xf1, /* br %r1 */
+ 0x07, 0x00, /* nopr %r0 */
+ 0x07, 0x00, /* nopr %r0 */
+ 0x07, 0x00 /* nopr %r0 */
};
{
struct elf_link_hash_entry elf;
- /* Track dynamic relocs copied for this symbol. */
- struct elf_dyn_relocs *dyn_relocs;
-
/* Number of GOTPLT references for a function. */
bfd_signed_vma gotplt_refcount;
bfd_vma offset;
} tls_ldm_got;
- /* Small local sym cache. */
- struct sym_cache sym_cache;
-
/* Options passed from the linker. */
struct s390_elf_params *params;
};
/* Get the s390 ELF linker hash table from a link_info structure. */
#define elf_s390_hash_table(p) \
- (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
- == S390_ELF_DATA ? ((struct elf_s390_link_hash_table *) ((p)->hash)) : NULL)
+ ((is_elf_hash_table ((p)->hash) \
+ && elf_hash_table_id (elf_hash_table (p)) == S390_ELF_DATA) \
+ ? (struct elf_s390_link_hash_table *) (p)->hash : NULL)
#define ELF64 1
#include "elf-s390-common.c"
struct elf_s390_link_hash_entry *eh;
eh = (struct elf_s390_link_hash_entry *) entry;
- eh->dyn_relocs = NULL;
eh->gotplt_refcount = 0;
eh->tls_type = GOT_UNKNOWN;
eh->ifunc_resolver_address = 0;
elf_s390_link_hash_table_create (bfd *abfd)
{
struct elf_s390_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
+ size_t amt = sizeof (struct elf_s390_link_hash_table);
ret = (struct elf_s390_link_hash_table *) bfd_zmalloc (amt);
if (ret == NULL)
edir = (struct elf_s390_link_hash_entry *) dir;
eind = (struct elf_s390_link_hash_entry *) ind;
- if (eind->dyn_relocs != NULL)
- {
- if (edir->dyn_relocs != NULL)
- {
- 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 elf_dyn_relocs *q;
-
- for (q = edir->dyn_relocs; q != NULL; q = q->next)
- if (q->sec == p->sec)
- {
- q->pc_count += p->pc_count;
- q->count += p->count;
- *pp = p->next;
- break;
- }
- if (q == NULL)
- pp = &p->next;
- }
- *pp = edir->dyn_relocs;
- }
-
- edir->dyn_relocs = eind->dyn_relocs;
- eind->dyn_relocs = NULL;
- }
-
if (ind->root.type == bfd_link_hash_indirect
&& dir->got.refcount <= 0)
{
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
{
/* xgettext:c-format */
- _bfd_error_handler (_("%B: bad symbol index: %d"),
+ _bfd_error_handler (_("%pB: bad symbol index: %d"),
abfd, r_symndx);
return FALSE;
}
if (r_symndx < symtab_hdr->sh_info)
{
/* A local symbol. */
- isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
abfd, r_symndx);
if (isym == NULL)
return FALSE;
{
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: `%s' accessed both as normal and thread local symbol"),
+ (_("%pB: `%s' accessed both as normal and thread local symbol"),
abfd, h->root.root.string);
return FALSE;
}
relocations we need for this symbol. */
if (h != NULL)
{
- head = &((struct elf_s390_link_hash_entry *) h)->dyn_relocs;
+ head = &h->dyn_relocs;
}
else
{
asection *s;
void *vpp;
- isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
abfd, r_symndx);
if (isym == NULL)
return FALSE;
p = *head;
if (p == NULL || p->sec != sec)
{
- bfd_size_type amt = sizeof *p;
+ size_t amt = sizeof *p;
p = ((struct elf_dyn_relocs *)
bfd_alloc (htab->elf.dynobj, amt));
if (p == NULL)
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
case R_390_GNU_VTENTRY:
- BFD_ASSERT (h != NULL);
- if (h != NULL
- && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
h->gotplt_refcount = -1;
}
-/* Find dynamic relocs for H that apply to read-only sections. */
-
-static asection *
-readonly_dynrelocs (struct elf_link_hash_entry *h)
-{
- struct elf_dyn_relocs *p;
-
- for (p = elf_s390_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
- {
- asection *s = p->sec->output_section;
-
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- return p->sec;
- }
- return NULL;
-}
-
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
dynamic object, but we're not including those sections. We have to
{
bfd_size_type pc_count = 0, count = 0;
struct elf_dyn_relocs **pp;
- struct elf_s390_link_hash_entry *eh;
struct elf_dyn_relocs *p;
- eh = (struct elf_s390_link_hash_entry *) h;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
{
pc_count += p->pc_count;
p->count -= p->pc_count;
{
if (h->plt.refcount <= 0
|| SYMBOL_CALLS_LOCAL (info, h)
- || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- && h->root.type == bfd_link_hash_undefweak))
+ || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
{
/* This case can occur if we saw a PLT32 reloc in an input
file, but the symbol was never referred to by a dynamic
return TRUE;
}
- if (ELIMINATE_COPY_RELOCS)
+ /* If we don't find any dynamic relocs in read-only sections, then
+ we'll be keeping the dynamic relocs and avoiding the copy reloc. */
+ if (ELIMINATE_COPY_RELOCS && !_bfd_elf_readonly_dynrelocs (h))
{
- struct elf_s390_link_hash_entry * eh;
- struct elf_dyn_relocs *p;
-
- eh = (struct elf_s390_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- s = p->sec->output_section;
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- break;
- }
-
- /* 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. */
- if (p == NULL)
- {
- h->non_got_ref = 0;
- return TRUE;
- }
+ h->non_got_ref = 0;
+ return TRUE;
}
/* We must allocate the symbol in our .dynbss section, which will
{
struct bfd_link_info *info;
struct elf_s390_link_hash_table *htab;
- struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry *)h;
struct elf_dyn_relocs *p;
if (h->root.type == bfd_link_hash_indirect)
/* Make room for this entry. */
s->size += PLT_ENTRY_SIZE;
- /* We also need to make an entry in the .got.plt section, which
- will be placed in the .got section by the linker script. */
+ /* We also need to make an entry in the .got.plt section. */
htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
/* We also need to make an entry in the .rela.plt section. */
htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
else if (tls_type == GOT_TLS_GD)
htab->elf.srelgot->size += 2 * sizeof (Elf64_External_Rela);
- else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak)
+ else if (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
&& (bfd_link_pic (info)
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
else
h->got.offset = (bfd_vma) -1;
- if (eh->dyn_relocs == NULL)
+ if (h->dyn_relocs == NULL)
return TRUE;
/* In the shared -Bsymbolic case, discard space allocated for
{
struct elf_dyn_relocs **pp;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
{
p->count -= p->pc_count;
p->pc_count = 0;
/* Also discard relocs on undefined weak syms with non-default
visibility. */
- if (eh->dyn_relocs != NULL
+ if (h->dyn_relocs != NULL
&& h->root.type == bfd_link_hash_undefweak)
{
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
|| UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
- eh->dyn_relocs = NULL;
+ h->dyn_relocs = NULL;
/* Make sure undefined weak symbols are output as a dynamic
symbol in PIEs. */
goto keep;
}
- eh->dyn_relocs = NULL;
+ h->dyn_relocs = NULL;
keep: ;
}
/* Finally, allocate space. */
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ for (p = h->dyn_relocs; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
sreloc->size += p->count * sizeof (Elf64_External_Rela);
return TRUE;
}
-/* Set DF_TEXTREL if we find any dynamic relocs that apply to
- read-only sections. */
-
-static bfd_boolean
-maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
-{
- asection *sec;
-
- if (h->root.type == bfd_link_hash_indirect)
- return TRUE;
-
- sec = readonly_dynrelocs (h);
- if (sec != NULL)
- {
- struct bfd_link_info *info = (struct bfd_link_info *) info_p;
-
- info->flags |= DF_TEXTREL;
- info->callbacks->minfo
- (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
- sec->owner, h->root.root.string, sec);
-
- /* Not an error, just cut short the traversal. */
- return FALSE;
- }
- return TRUE;
-}
-
/* Set the sizes of the dynamic sections. */
static bfd_boolean
}
}
+ if (htab->elf.sgot && s390_gotplt_after_got_p (info))
+ {
+ /* _bfd_elf_create_got_section adds the got header size always
+ to .got.plt but we need it in .got if this section comes
+ first. */
+ htab->elf.sgot->size += 3 * GOT_ENTRY_SIZE;
+ htab->elf.sgotplt->size -= 3 * GOT_ENTRY_SIZE;
+
+ /* Make the _GLOBAL_OFFSET_TABLE_ symbol point to the .got
+ instead of .got.plt. */
+ htab->elf.hgot->root.u.def.section = htab->elf.sgot;
+ htab->elf.hgot->root.u.def.value = 0;
+ }
+
/* Set up .got offsets for local syms, and space for local dynamic
relocs. */
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
/* Strip this section if we don't need it; see the
comment below. */
}
- else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
+ else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
{
if (s->size != 0 && s != htab->elf.srelplt)
relocs = TRUE;
return FALSE;
}
- if (htab->elf.dynamic_sections_created)
- {
- /* Add some entries to the .dynamic section. We fill in the
- values later, in elf_s390_finish_dynamic_sections, but we
- must add the entries now so that we get the correct size for
- the .dynamic section. The DT_DEBUG entry is filled in by the
- dynamic linker and used by the debugger. */
-#define add_dynamic_entry(TAG, VAL) \
- _bfd_elf_add_dynamic_entry (info, TAG, VAL)
-
- if (bfd_link_executable (info))
- {
- if (!add_dynamic_entry (DT_DEBUG, 0))
- return FALSE;
- }
-
- if (htab->elf.splt->size != 0)
- {
- if (!add_dynamic_entry (DT_PLTGOT, 0)
- || !add_dynamic_entry (DT_PLTRELSZ, 0)
- || !add_dynamic_entry (DT_PLTREL, DT_RELA)
- || !add_dynamic_entry (DT_JMPREL, 0))
- return FALSE;
- }
-
- if (relocs)
- {
- if (!add_dynamic_entry (DT_RELA, 0)
- || !add_dynamic_entry (DT_RELASZ, 0)
- || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
- return FALSE;
-
- /* If any dynamic relocs apply to a read-only section,
- then we need a DT_TEXTREL entry. */
- if ((info->flags & DF_TEXTREL) == 0)
- elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
-
- if ((info->flags & DF_TEXTREL) != 0)
- {
- if (!add_dynamic_entry (DT_TEXTREL, 0))
- return FALSE;
- }
- }
- }
-#undef add_dynamic_entry
-
- return TRUE;
+ return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
}
/* Return the base VMA address which should be subtracted from real addresses
howto = elf_howto_table + ELF64_R_TYPE (rel->r_info);
_bfd_error_handler
/* xgettext:c-format */
- (_("%B(%A+%#Lx): invalid instruction for TLS relocation %s"),
+ (_("%pB(%pA+%#" PRIx64 "): invalid instruction for TLS relocation %s"),
input_bfd,
input_section,
- rel->r_offset,
+ (uint64_t) rel->r_offset,
howto->name);
bfd_set_error (bfd_error_bad_value);
}
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
- BFD_ASSERT (is_s390_elf (input_bfd));
+ if (!is_s390_elf (input_bfd))
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
htab = elf_s390_hash_table (info);
if (htab == NULL)
bfd_boolean unresolved_reloc;
bfd_reloc_status_type r;
int tls_type;
- asection *base_got = htab->elf.sgot;
bfd_boolean resolved_to_zero;
r_type = ELF64_R_TYPE (rel->r_info);
case R_390_PLTOFF16:
case R_390_PLTOFF32:
case R_390_PLTOFF64:
- relocation -= htab->elf.sgot->output_section->vma;
+ relocation -= s390_got_pointer (info);
break;
case R_390_GOTPLT12:
case R_390_GOTPLT16:
htab->elf.sgot->contents +
local_got_offsets[r_symndx]);
relocation = (local_got_offsets[r_symndx] +
- htab->elf.sgot->output_offset);
+ s390_got_offset (info));
if (r_type == R_390_GOTENT || r_type == R_390_GOTPLTENT)
- relocation += htab->elf.sgot->output_section->vma;
+ relocation += s390_got_pointer (info);
break;
}
default:
if (s390_is_ifunc_symbol_p (h))
{
+ /* Entry indices of .iplt and .igot.plt match
+ 1:1. No magic PLT first entry here. */
plt_index = h->plt.offset / PLT_ENTRY_SIZE;
- relocation = (plt_index * GOT_ENTRY_SIZE +
- htab->elf.igotplt->output_offset);
- if (r_type == R_390_GOTPLTENT)
- relocation += htab->elf.igotplt->output_section->vma;
+ relocation = (plt_index * GOT_ENTRY_SIZE
+ + s390_gotplt_offset (info)
+ + htab->elf.igotplt->output_offset);
}
else
{
- /* Calc. index no.
- Current offset - size first entry / entry size. */
- plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) /
- PLT_ENTRY_SIZE;
-
- /* Offset in GOT is PLT index plus GOT headers(3)
- times 8, addr & GOT addr. */
- relocation = (plt_index + 3) * GOT_ENTRY_SIZE;
- if (r_type == R_390_GOTPLTENT)
- relocation += htab->elf.sgot->output_section->vma;
+ plt_index = ((h->plt.offset - PLT_FIRST_ENTRY_SIZE)
+ / PLT_ENTRY_SIZE);
+
+ relocation = (plt_index * GOT_ENTRY_SIZE
+ + s390_gotplt_offset (info));
}
+ if (r_type == R_390_GOTPLTENT)
+ relocation += s390_got_pointer (info);
unresolved_reloc = FALSE;
break;
}
case R_390_GOTENT:
/* Relocation is to the entry for this symbol in the global
offset table. */
- if (base_got == NULL)
+ if (htab->elf.sgot == NULL)
abort ();
if (h != NULL)
{
/* No explicit GOT usage so redirect to the
got.iplt slot. */
- base_got = htab->elf.igotplt;
- off = h->plt.offset / PLT_ENTRY_SIZE * GOT_ENTRY_SIZE;
+ relocation = (s390_gotplt_offset (info)
+ + htab->elf.igotplt->output_offset
+ + (h->plt.offset / PLT_ENTRY_SIZE
+ * GOT_ENTRY_SIZE));
+
+ /* For @GOTENT the relocation is against the offset between
+ the instruction and the symbols entry in the GOT and not
+ between the start of the GOT and the symbols entry. We
+ add the vma of the GOT to get the correct value. */
+ if (r_type == R_390_GOTENT || r_type == R_390_GOTPLTENT)
+ relocation += s390_got_pointer (info);
+
+ break;
}
else
{
h)
|| (bfd_link_pic (info)
&& SYMBOL_REFERENCES_LOCAL (info, h))
- || (ELF_ST_VISIBILITY (h->other)
- && h->root.type == bfd_link_hash_undefweak))
+ || resolved_to_zero)
{
+ Elf_Internal_Sym *isym;
+ asection *sym_sec;
+
/* This is actually a static link, or it is a
-Bsymbolic link and the symbol is defined
locally, or the symbol was forced to be local
else
{
bfd_put_64 (output_bfd, relocation,
- base_got->contents + off);
+ htab->elf.sgot->contents + off);
h->got.offset |= 1;
}
+ /* When turning a GOT slot dereference into a direct
+ reference using larl we have to make sure that
+ the symbol is 1. properly aligned and 2. it is no
+ ABS symbol or will become one. */
if ((h->def_regular
&& bfd_link_pic (info)
&& SYMBOL_REFERENCES_LOCAL (info, h))
contents + rel->r_offset - 2)
& 0xff00f000) == 0xe300c000
&& bfd_get_8 (input_bfd,
- contents + rel->r_offset + 3) == 0x04)))
-
+ contents + rel->r_offset + 3) == 0x04))
+ && (isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
+ input_bfd, r_symndx))
+ && isym->st_shndx != SHN_ABS
+ && h != htab->elf.hdynamic
+ && h != htab->elf.hgot
+ && h != htab->elf.hplt
+ && !(isym->st_value & 1)
+ && (sym_sec = bfd_section_from_elf_index (input_bfd,
+ isym->st_shndx))
+ && sym_sec->alignment_power)
{
unsigned short new_insn =
(0xc000 | (bfd_get_8 (input_bfd,
if (off >= (bfd_vma) -2)
abort ();
- relocation = base_got->output_offset + off;
+ relocation = s390_got_offset (info) + off;
/* For @GOTENT the relocation is against the offset between
the instruction and the symbols entry in the GOT and not
add the vma of the GOT to get the correct value. */
if ( r_type == R_390_GOTENT
|| r_type == R_390_GOTPLTENT)
- relocation += base_got->output_section->vma;
+ relocation += s390_got_pointer (info);
break;
relocation = (htab->elf.iplt->output_section->vma
+ htab->elf.iplt->output_offset
+ h->plt.offset
- - htab->elf.sgot->output_section->vma);
+ - s390_got_pointer (info));
goto do_relocation;
}
- /* Note that sgot->output_offset is not involved in this
- calculation. We always want the start of .got. If we
- defined _GLOBAL_OFFSET_TABLE in a different way, as is
- permitted by the ABI, we might have to change this
- calculation. */
- relocation -= htab->elf.sgot->output_section->vma;
+ relocation -= s390_got_pointer (info);
break;
case R_390_GOTPC:
case R_390_GOTPCDBL:
/* Use global offset table as symbol value. */
- relocation = htab->elf.sgot->output_section->vma;
+ relocation = s390_got_pointer (info);
unresolved_reloc = FALSE;
break;
|| h->plt.offset == (bfd_vma) -1
|| (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
{
- relocation -= htab->elf.sgot->output_section->vma;
+ relocation -= s390_got_pointer (info);
break;
}
relocation = (htab->elf.iplt->output_section->vma
+ htab->elf.iplt->output_offset
+ h->plt.offset
- - htab->elf.sgot->output_section->vma);
+ - s390_got_pointer (info));
else
relocation = (htab->elf.splt->output_section->vma
+ htab->elf.splt->output_offset
+ h->plt.offset
- - htab->elf.sgot->output_section->vma);
+ - s390_got_pointer (info));
unresolved_reloc = FALSE;
break;
&& bfd_link_pie (info)
&& !h->def_regular)
{
- _bfd_error_handler (_("%B: `%s' non-PLT reloc for symbol defined "
+ _bfd_error_handler (_("%pB: `%s' non-PLT reloc for symbol defined "
"in shared library and accessed "
"from executable "
"(rebuild file with -fPIC ?)"),
case R_390_32:
case R_390_64:
+ if ((input_section->flags & SEC_ALLOC) == 0)
+ break;
+
if (h != NULL
&& s390_is_ifunc_symbol_p (h)
&& h->def_regular)
}
}
- if ((input_section->flags & SEC_ALLOC) == 0)
- break;
-
if ((bfd_link_pic (info)
&& (h == NULL
|| (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
{
if (indx == 0)
{
- BFD_ASSERT (! unresolved_reloc);
+ BFD_ASSERT (! unresolved_reloc);
bfd_put_64 (output_bfd,
relocation - dtpoff_base (info),
htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
rel->r_offset) != (bfd_vma) -1)
_bfd_error_handler
/* xgettext:c-format */
- (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
+ (_("%pB(%pA+%#" PRIx64 "): "
+ "unresolvable %s relocation against symbol `%s'"),
input_bfd,
input_section,
- rel->r_offset,
+ (uint64_t) rel->r_offset,
howto->name,
h->root.root.string);
if (name == NULL)
return FALSE;
if (*name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
if (r == bfd_reloc_overflow)
{
_bfd_error_handler
/* xgettext:c-format */
- (_("%B(%A+%#Lx): reloc against `%s': error %d"),
+ (_("%pB(%pA+%#" PRIx64 "): reloc against `%s': error %d"),
input_bfd, input_section,
- rel->r_offset, name, (int) r);
+ (uint64_t) rel->r_offset, name, (int) r);
return FALSE;
}
}
if (h->plt.offset != (bfd_vma) -1)
{
bfd_vma plt_index;
- bfd_vma got_offset;
+ bfd_vma gotplt_offset;
Elf_Internal_Rela rela;
bfd_byte *loc;
Current offset - size first entry / entry size. */
plt_index = (h->plt.offset - PLT_FIRST_ENTRY_SIZE) / PLT_ENTRY_SIZE;
- /* Offset in GOT is PLT index plus GOT headers(3) times 8,
- addr & GOT addr. */
- got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
+ /* The slots in the .got.plt correspond to the PLT slots in
+ the same order. */
+ gotplt_offset = plt_index * GOT_ENTRY_SIZE;
+
+ /* If .got.plt comes first it needs to contain the 3 header
+ entries. */
+ if (!s390_gotplt_after_got_p (info))
+ gotplt_offset += 3 * GOT_ENTRY_SIZE;
/* Fill in the blueprint of a PLT. */
memcpy (htab->elf.splt->contents + h->plt.offset, elf_s390x_plt_entry,
PLT_ENTRY_SIZE);
- /* Fixup the relative address to the GOT entry */
+ /* The first instruction in the PLT entry is a LARL loading
+ the address of the GOT slot. We write the 4 byte
+ immediate operand of the LARL instruction here. */
bfd_put_32 (output_bfd,
(htab->elf.sgotplt->output_section->vma +
- htab->elf.sgotplt->output_offset + got_offset
+ htab->elf.sgotplt->output_offset + gotplt_offset
- (htab->elf.splt->output_section->vma +
htab->elf.splt->output_offset +
h->plt.offset))/2,
+ htab->elf.splt->output_offset
+ h->plt.offset
+ 14),
- htab->elf.sgotplt->contents + got_offset);
+ htab->elf.sgotplt->contents + gotplt_offset);
/* Fill in the entry in the .rela.plt section. */
rela.r_offset = (htab->elf.sgotplt->output_section->vma
+ htab->elf.sgotplt->output_offset
- + got_offset);
+ + gotplt_offset);
rela.r_info = ELF64_R_INFO (h->dynindx, R_390_JMP_SLOT);
rela.r_addend = 0;
loc = htab->elf.srelplt->contents + plt_index *
else if (bfd_link_pic (info)
&& SYMBOL_REFERENCES_LOCAL (info, h))
{
+ if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
+ return TRUE;
+
/* If this is a static link, or it is a -Bsymbolic link and
the symbol is defined locally or was forced to be local
because of a version file, we just want to emit a
continue;
case DT_PLTGOT:
- s = htab->elf.sgotplt;
- dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
+ /* DT_PLTGOT matches _GLOBAL_OFFSET_TABLE_ */
+ dyn.d_un.d_ptr = s390_got_pointer (info);
break;
case DT_JMPREL:
/* fill in blueprint for plt 0 entry */
memcpy (htab->elf.splt->contents, elf_s390x_first_plt_entry,
PLT_FIRST_ENTRY_SIZE);
- /* Fixup relative address to start of GOT */
+ /* The second instruction in the first PLT entry is a LARL
+ loading the GOT pointer. Fill in the LARL immediate
+ address. */
bfd_put_32 (output_bfd,
- (htab->elf.sgotplt->output_section->vma
- + htab->elf.sgotplt->output_offset
+ (s390_got_pointer (info)
- htab->elf.splt->output_section->vma
- htab->elf.splt->output_offset - 6)/2,
htab->elf.splt->contents + 8);
= PLT_ENTRY_SIZE;
}
- if (htab->elf.sgotplt)
+ if (htab->elf.hgot && htab->elf.hgot->root.u.def.section)
{
/* Fill in the first three entries in the global offset table. */
- if (htab->elf.sgotplt->size > 0)
+ if (htab->elf.hgot->root.u.def.section->size > 0)
{
bfd_put_64 (output_bfd,
(sdyn == NULL ? (bfd_vma) 0
: sdyn->output_section->vma + sdyn->output_offset),
- htab->elf.sgotplt->contents);
+ htab->elf.hgot->root.u.def.section->contents);
/* One entry for shared object struct ptr. */
- bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 8);
+ bfd_put_64 (output_bfd, (bfd_vma) 0,
+ htab->elf.hgot->root.u.def.section->contents + 8);
/* One entry for _dl_runtime_resolve. */
- bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + 16);
+ bfd_put_64 (output_bfd, (bfd_vma) 0,
+ htab->elf.hgot->root.u.def.section->contents + 16);
}
-
- elf_section_data (htab->elf.sgot->output_section)
- ->this_hdr.sh_entsize = 8;
+ if (htab->elf.sgot != NULL && htab->elf.sgot->size > 0)
+ elf_section_data (htab->elf.sgot->output_section)
+ ->this_hdr.sh_entsize = 8;
}
/* Finish dynamic symbol for local IFUNC symbols. */
if (local_plt[i].plt.offset != (bfd_vma) -1)
{
asection *sec = local_plt[i].sec;
- isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, i);
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, ibfd, i);
if (isym == NULL)
return FALSE;
case NT_PRPSINFO:
{
- char data[136] = { 0 };
+ char data[136] ATTRIBUTE_NONSTRING = { 0 };
const char *fname, *psargs;
va_start (ap, note_type);
va_end (ap);
strncpy (data + 40, fname, 16);
+#if GCC_VERSION == 8000 || GCC_VERSION == 8001
+ DIAGNOSTIC_PUSH;
+ /* GCC 8.0 and 8.1 warn about 80 equals destination size with
+ -Wstringop-truncation:
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85643
+ */
+ DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION;
+#endif
strncpy (data + 56, psargs, 80);
+#if GCC_VERSION == 8000 || GCC_VERSION == 8001
+ DIAGNOSTIC_POP;
+#endif
return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
&data, sizeof (data));
}
#define bfd_elf64_bfd_is_local_label_name elf_s390_is_local_label_name
#define bfd_elf64_bfd_link_hash_table_create elf_s390_link_hash_table_create
#define bfd_elf64_bfd_reloc_type_lookup elf_s390_reloc_type_lookup
-#define bfd_elf64_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
+#define bfd_elf64_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
#define bfd_elf64_bfd_merge_private_bfd_data elf64_s390_merge_private_bfd_data
#define elf_backend_adjust_dynamic_symbol elf_s390_adjust_dynamic_symbol
#define elf_backend_grok_psinfo elf_s390_grok_psinfo
#define elf_backend_write_core_note elf_s390_write_core_note
#define elf_backend_plt_sym_val elf_s390_plt_sym_val
-#define elf_backend_add_symbol_hook elf_s390_add_symbol_hook
-#define elf_backend_sort_relocs_p elf_s390_elf_sort_relocs_p
+#define elf_backend_sort_relocs_p elf_s390_elf_sort_relocs_p
#define elf_backend_additional_program_headers elf_s390_additional_program_headers
#define elf_backend_modify_segment_map elf_s390_modify_segment_map
projects / thirdparty / binutils-gdb.git / blobdiff