diff options
Diffstat (limited to 'bfd/elf64-x86-64.c')
| -rw-r--r-- | bfd/elf64-x86-64.c | 97 |
1 files changed, 96 insertions, 1 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 2ae8dff..fb87279 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -22,6 +22,7 @@ #include "elfxx-x86.h" #include "dwarf2.h" #include "libiberty.h" +#include "sframe.h" #include "opcode/i386.h" @@ -818,6 +819,87 @@ static const bfd_byte elf_x86_64_eh_frame_non_lazy_plt[] = DW_CFA_nop, DW_CFA_nop, DW_CFA_nop }; +static const sframe_frame_row_entry elf_x86_64_sframe_null_fre = +{ + 0, + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B), /* FRE info. */ + {16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* 12 bytes. */ +}; + +/* .sframe FRE covering the .plt section entry. */ +static const sframe_frame_row_entry elf_x86_64_sframe_plt0_fre1 = +{ + 0, /* SFrame FRE start address. */ + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B), /* FRE info. */ + {16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* 12 bytes. */ +}; + +/* .sframe FRE covering the .plt section entry. */ +static const sframe_frame_row_entry elf_x86_64_sframe_plt0_fre2 = +{ + 6, /* SFrame FRE start address. */ + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B), /* FRE info. */ + {24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* 12 bytes. */ +}; + +/* .sframe FRE covering the .plt section entry. */ +static const sframe_frame_row_entry elf_x86_64_sframe_pltn_fre1 = +{ + 0, /* SFrame FRE start address. */ + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B), /* FRE info. */ + {8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* 12 bytes. */ +}; + +/* .sframe FRE covering the .plt section entry. */ +static const sframe_frame_row_entry elf_x86_64_sframe_pltn_fre2 = +{ + 11, /* SFrame FRE start address. */ + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B), /* FRE info. */ + {16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* 12 bytes. */ +}; + +/* .sframe FRE covering the second .plt section entry. */ +static const sframe_frame_row_entry elf_x86_64_sframe_sec_pltn_fre1 = +{ + 0, /* SFrame FRE start address. */ + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B), /* FRE info. */ + {8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* 12 bytes. */ +}; + +/* SFrame helper object for non-lazy PLT. Also used for IBT enabled PLT. */ +static const struct elf_x86_sframe_plt elf_x86_64_sframe_non_lazy_plt = +{ + LAZY_PLT_ENTRY_SIZE, + 2, /* Number of FREs for PLT0. */ + /* Array of SFrame FREs for plt0. */ + { &elf_x86_64_sframe_plt0_fre1, &elf_x86_64_sframe_plt0_fre2 }, + LAZY_PLT_ENTRY_SIZE, + 1, /* Number of FREs for PLTn. */ + /* Array of SFrame FREs for plt. */ + { &elf_x86_64_sframe_sec_pltn_fre1, &elf_x86_64_sframe_null_fre }, + 0, + 0, /* There is no second PLT necessary. */ + { &elf_x86_64_sframe_null_fre } +}; + +/* SFrame helper object for lazy PLT. Also used for IBT enabled PLT. */ +static const struct elf_x86_sframe_plt elf_x86_64_sframe_plt = +{ + LAZY_PLT_ENTRY_SIZE, + 2, /* Number of FREs for PLT0. */ + /* Array of SFrame FREs for plt0. */ + { &elf_x86_64_sframe_plt0_fre1, &elf_x86_64_sframe_plt0_fre2 }, + LAZY_PLT_ENTRY_SIZE, + 2, /* Number of FREs for PLTn. */ + /* Array of SFrame FREs for plt. */ + { &elf_x86_64_sframe_pltn_fre1, &elf_x86_64_sframe_pltn_fre2 }, + NON_LAZY_PLT_ENTRY_SIZE, + 1, /* Number of FREs for PLTn for second PLT. */ + /* FREs for second plt ( unwind info for .plt.got is + identical). Used when IBT or non-lazy PLT is in effect. */ + { &elf_x86_64_sframe_sec_pltn_fre1 } +}; + /* These are the standard parameters. */ static const struct elf_x86_lazy_plt_layout elf_x86_64_lazy_plt = { @@ -971,7 +1053,6 @@ static const struct elf_x86_non_lazy_plt_layout elf_x32_non_lazy_ibt_plt = sizeof (elf_x86_64_eh_frame_non_lazy_plt) /* eh_frame_plt_size */ }; - static bool elf64_x86_64_elf_object_p (bfd *abfd) { @@ -5230,6 +5311,20 @@ elf_x86_64_link_setup_gnu_properties (struct bfd_link_info *info) if (ABI_64_P (info->output_bfd)) { + init_table.sframe_lazy_plt = &elf_x86_64_sframe_plt; + init_table.sframe_non_lazy_plt = &elf_x86_64_sframe_non_lazy_plt; + init_table.sframe_lazy_ibt_plt = &elf_x86_64_sframe_plt; + init_table.sframe_non_lazy_ibt_plt = &elf_x86_64_sframe_non_lazy_plt; + } + else + { + /* SFrame is not supported for non AMD64. */ + init_table.sframe_lazy_plt = NULL; + init_table.sframe_non_lazy_plt = NULL; + } + + if (ABI_64_P (info->output_bfd)) + { init_table.r_info = elf64_r_info; init_table.r_sym = elf64_r_sym; } |