+2008-07-12 Jie Zhang <jie.zhang@analog.com>
+
+ * elf.c (_bfd_elf_map_sections_to_segments): Don't put
+ executable sections into the same segment with other
+ read only sections if --sep-code.
+ * elf32-bfin.c (elf32_bfin_code_in_l1): New variable.
+ (elf32_bfin_data_in_l1): New variable.
+ (elf32_bfin_final_write_processing): New.
+ (elf32_bfin_special_sections[]): New.
+ (elf_backend_final_write_processing): Define.
+ (elf_backend_special_sections): Define.
+
2008-07-11 Andreas Schwab <schwab@suse.de>
* dwarf2.c (read_section): Take pointer to bfd_size_type instead
asection **hdrpp;
bfd_boolean phdr_in_segment = TRUE;
bfd_boolean writable;
+ bfd_boolean executable;
int tls_count = 0;
asection *first_tls = NULL;
asection *dynsec, *eh_frame_hdr;
phdr_index = 0;
maxpagesize = bed->maxpagesize;
writable = FALSE;
+ executable = FALSE;
dynsec = bfd_get_section_by_name (abfd, ".dynamic");
if (dynsec != NULL
&& (dynsec->flags & SEC_LOAD) == 0)
ends precisely on a page boundary. */
new_segment = TRUE;
}
+ else if (info->sep_code
+ && ((! executable && (hdr->flags & SEC_CODE) != 0)
+ || (executable && (hdr->flags & SEC_CODE) == 0)))
+ {
+ /* We don't want to put a executable section in a non-executable
+ segment. */
+ new_segment = TRUE;
+ }
else
{
/* Otherwise, we can use the same segment. */
{
if ((hdr->flags & SEC_READONLY) == 0)
writable = TRUE;
+ if ((hdr->flags & SEC_CODE) != 0)
+ executable = TRUE;
last_hdr = hdr;
/* .tbss sections effectively have zero size. */
if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
else
writable = FALSE;
+ if ((hdr->flags & SEC_CODE) != 0)
+ executable = TRUE;
+ else
+ executable = FALSE;
+
last_hdr = hdr;
/* .tbss sections effectively have zero size. */
if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL)
return (reloc_howto_type *) NULL;
}
+/* Set by ld emulation if --code-in-l1. */
+bfd_boolean elf32_bfin_code_in_l1 = 0;
+
+/* Set by ld emulation if --data-in-l1. */
+bfd_boolean elf32_bfin_data_in_l1 = 0;
+
+static void
+elf32_bfin_final_write_processing (bfd *abfd,
+ bfd_boolean linker ATTRIBUTE_UNUSED)
+{
+ if (elf32_bfin_code_in_l1)
+ elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
+ if (elf32_bfin_data_in_l1)
+ elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
+}
+
/* Return TRUE if the name is a local label.
bfin local labels begin with L$. */
static bfd_boolean
free (internal_relocs);
return FALSE;
}
+
+struct bfd_elf_special_section const elf32_bfin_special_sections[] =
+{
+ { ".l1.text", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
+ { ".l1.data", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
+};
+
\f
#define TARGET_LITTLE_SYM bfd_elf32_bfin_vec
#define TARGET_LITTLE_NAME "elf32-bfin"
elf32_bfin_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data \
elf32_bfin_print_private_bfd_data
+#define elf_backend_final_write_processing \
+ elf32_bfin_final_write_processing
#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
#define elf_backend_can_gc_sections 1
+#define elf_backend_special_sections elf32_bfin_special_sections
#define elf_backend_can_refcount 1
#define elf_backend_want_got_plt 0
#define elf_backend_plt_readonly 1
+2008-07-12 Jie Zhang <jie.zhang@analog.com>
+
+ * bfdlink.h (struct bfd_link_info): Add sep_code member
+ variable.
+ * elf/bfin.h (EF_BFIN_CODE_IN_L1): Define.
+ (EF_BFIN_DATA_IN_L1): Define.
+
2008-07-07 Stan Shebs <stan@codesourcery.com>
* dis-asm.h (struct disassemble_info): Add endian_code field.
/* Non-NULL if .note.gnu.build-id section should be created. */
char *emit_note_gnu_build_id;
+ /* TRUE if putting code into separate segment. */
+ unsigned int sep_code: 1;
+
/* What to do with unresolved symbols in an object file.
When producing executables the default is GENERATE_ERROR.
When producing shared libraries the default is IGNORE. The
#define EF_BFIN_PIC 0x00000001 /* -fpic */
#define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */
+#define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */
+#define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */
+
#define EF_BFIN_PIC_FLAGS (EF_BFIN_PIC | EF_BFIN_FDPIC)
#endif /* _ELF_BFIN_H */