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| author | Christophe Lyon <christophe.lyon@st.com> | 2018-03-20 10:54:50 +0100 |
|---|---|---|
| committer | Christophe Lyon <christophe.lyon@linaro.org> | 2018-04-25 20:49:57 +0000 |
| commit | 18a203380502fb3ee75633fd464faa3c83cec710 (patch) | |
| tree | 38db2664e147980721410e17587c5ec056dba4d7 /bfd | |
| parent | 617a5ada88c7d4b6aae201ad5b295f3d2ef07c10 (diff) | |
| download | gdb-18a203380502fb3ee75633fd464faa3c83cec710.zip gdb-18a203380502fb3ee75633fd464faa3c83cec710.tar.gz gdb-18a203380502fb3ee75633fd464faa3c83cec710.tar.bz2 | |
[ARM] Add FDPIC OSABI flag support.
ELF files targetting ARM FDPIC use the ELFOSABI_ARM_FDPIC flag.
Set it appropriately in file generators (eg. gas), and handle it in
readers (eg. readelf).
2018-04-25 Christophe Lyon <christophe.lyon@st.com>
Mickaël Guêné <mickael.guene@st.com>
bfd/
* elf32-arm.c (elf32_arm_print_private_bfd_data): Support
EF_ARM_PIC and ELFOSABI_ARM_FDPIC.
(elf32_arm_post_process_headers): Support ELFOSABI_ARM_FDPIC.
(ELF_OSABI): Define to ELFOSABI_ARM_FDPIC.
binutils/
* readelf.c (decode_ARM_machine_flags): Support EF_ARM_PIC.
(get_osabi_name): Support ELFOSABI_ARM_FDPIC.
gas/
* config/tc-arm.c (arm_fdpic): New.
(elf32_arm_target_format): Support FDPIC.
(OPTION_FDPIC): New.
(md_longopts): Support FDPIC.
(md_parse_option): Likewise.
(md_show_usage): Likewise.
include/
* elf/arm.h (EF_ARM_FDPIC): New.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 8 | ||||
| -rw-r--r-- | bfd/elf32-arm.c | 14 |
2 files changed, 21 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ed96fcd..dd28d04 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,6 +1,14 @@ 2018-04-25 Christophe Lyon <christophe.lyon@st.com> Mickaël Guêné <mickael.guene@st.com> + * elf32-arm.c (elf32_arm_print_private_bfd_data): Support + EF_ARM_PIC and ELFOSABI_ARM_FDPIC. + (elf32_arm_post_process_headers): Support ELFOSABI_ARM_FDPIC. + (ELF_OSABI): Define to ELFOSABI_ARM_FDPIC. + +2018-04-25 Christophe Lyon <christophe.lyon@st.com> + Mickaël Guêné <mickael.guene@st.com> + * config.bfd (arm*-*-linux-*): Add arm_elf32_fdpic_be_vec and arm_elf32_fdpic_le_vec to targ_selvecs. Accept arm*-*-uclinuxfdpiceabi. diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index 565bb40..a0b0be3 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -14280,7 +14280,13 @@ elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr) if (flags & EF_ARM_RELEXEC) fprintf (file, _(" [relocatable executable]")); - flags &= ~EF_ARM_RELEXEC; + if (flags & EF_ARM_PIC) + fprintf (file, _(" [position independent]")); + + if (elf_elfheader (abfd)->e_ident[EI_OSABI] == ELFOSABI_ARM_FDPIC) + fprintf (file, _(" [FDPIC ABI supplement]")); + + flags &= ~ (EF_ARM_RELEXEC | EF_ARM_PIC); if (flags) fprintf (file, _("<Unrecognised flag bits set>")); @@ -16642,6 +16648,9 @@ elf32_arm_post_process_headers (bfd * abfd, struct bfd_link_info * link_info ATT globals = elf32_arm_hash_table (link_info); if (globals != NULL && globals->byteswap_code) i_ehdrp->e_flags |= EF_ARM_BE8; + + if (globals->fdpic_p) + i_ehdrp->e_ident[EI_OSABI] |= ELFOSABI_ARM_FDPIC; } if (EF_ARM_EABI_VERSION (i_ehdrp->e_flags) == EF_ARM_EABI_VER5 @@ -19427,6 +19436,8 @@ elf32_arm_nacl_plt_sym_val (bfd_vma i, const asection *plt, #define TARGET_BIG_NAME "elf32-bigarm-fdpic" #undef elf_match_priority #define elf_match_priority 128 +#undef ELF_OSABI +#define ELF_OSABI ELFOSABI_ARM_FDPIC /* Like elf32_arm_link_hash_table_create -- but overrides appropriately for FDPIC. */ @@ -19454,6 +19465,7 @@ elf32_arm_fdpic_link_hash_table_create (bfd *abfd) #include "elf32-target.h" #undef elf_match_priority +#undef ELF_OSABI /* VxWorks Targets. */ |