* elf32-mips.c (elf_mips_isa): New static function.

(_bfd_mips_elf_merge_private_bfd_data): Don't warn about linking
	-mips1 and -mips2 code together, or -mips3 and -mips4 code.
This commit is contained in:
Ian Lance Taylor 1996-10-08 15:41:08 +00:00
parent d0e01d94fa
commit fe4ff51570
2 changed files with 65 additions and 12 deletions

View File

@ -1,3 +1,9 @@
Tue Oct 8 11:40:16 1996 Ian Lance Taylor <ian@cygnus.com>
* elf32-mips.c (elf_mips_isa): New static function.
(_bfd_mips_elf_merge_private_bfd_data): Don't warn about linking
-mips1 and -mips2 code together, or -mips3 and -mips4 code.
Mon Oct 7 11:44:17 1996 Ian Lance Taylor <ian@cygnus.com>
* archive.c (do_slurp_coff_armap): Only treat archive as little

View File

@ -56,6 +56,7 @@ static boolean mips_elf_create_procedure_table
struct ecoff_debug_info *));
static int mips_elf_additional_program_headers PARAMS ((bfd *));
static boolean mips_elf_modify_segment_map PARAMS ((bfd *));
static INLINE int elf_mips_isa PARAMS ((flagword));
static boolean mips_elf32_section_from_shdr
PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
static boolean mips_elf32_section_processing
@ -1485,7 +1486,7 @@ _bfd_mips_elf_object_p (abfd)
{
default:
case E_MIPS_ARCH_1:
/* Just use the default, which was set in elfcode.h. */
(void) bfd_default_set_arch_mach (abfd, bfd_arch_mips, 3000);
break;
case E_MIPS_ARCH_2:
@ -1648,10 +1649,8 @@ _bfd_mips_elf_copy_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
/* This function is selected based on the input vector. We only
want to copy information over if the output BFD also uses Elf
format. */
if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
BFD_ASSERT (!elf_flags_init (obfd)
@ -1664,6 +1663,26 @@ _bfd_mips_elf_copy_private_bfd_data (ibfd, obfd)
return true;
}
/* Return the ISA for a MIPS e_flags value. */
static INLINE int
elf_mips_isa (flags)
flagword flags;
{
switch (flags & EF_MIPS_ARCH)
{
case E_MIPS_ARCH_1:
return 1;
case E_MIPS_ARCH_2:
return 2;
case E_MIPS_ARCH_3:
return 3;
case E_MIPS_ARCH_4:
return 4;
}
return 4;
}
/* Merge backend specific data from an object file to the output
object file when linking. */
@ -1689,10 +1708,8 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
return false;
}
/* This function is selected based on the input vector. We only
want to copy information over if the output BFD also uses Elf
format. */
if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
new_flags = elf_elfheader (ibfd)->e_flags;
@ -1703,6 +1720,9 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
{
elf_flags_init (obfd) = true;
elf_elfheader (obfd)->e_flags = new_flags;
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
&& bfd_get_arch_info (obfd)->the_default)
bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
}
else if (((new_flags ^ old_flags) & ~EF_MIPS_NOREORDER)
== 0) /* Compatible flags are ok */
@ -1713,6 +1733,7 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC))
{
new_flags &= ~EF_MIPS_PIC;
old_flags &= ~EF_MIPS_PIC;
(*_bfd_error_handler)
("%s: needs all files compiled with -fPIC",
bfd_get_filename (ibfd));
@ -1721,11 +1742,32 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC))
{
new_flags &= ~EF_MIPS_CPIC;
old_flags &= ~EF_MIPS_CPIC;
(*_bfd_error_handler)
("%s: needs all files compiled with -mabicalls",
bfd_get_filename (ibfd));
}
/* Don't warn about mixing -mips1 and -mips2 code, or mixing
-mips3 and -mips4 code. They will normally use the same data
sizes and calling conventions. */
if ((new_flags & EF_MIPS_ARCH) != (old_flags & EF_MIPS_ARCH))
{
int new_isa, old_isa;
new_isa = elf_mips_isa (new_flags);
old_isa = elf_mips_isa (old_flags);
if ((new_isa == 1 || new_isa == 2)
? (old_isa != 1 && old_isa != 2)
: (old_isa == 1 || old_isa == 2))
(*_bfd_error_handler)
("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)",
bfd_get_filename (ibfd), new_isa, old_isa);
new_flags &= ~ EF_MIPS_ARCH;
old_flags &= ~ EF_MIPS_ARCH;
}
/* Warn about any other mismatches */
if (new_flags != old_flags)
(*_bfd_error_handler)
@ -4988,9 +5030,14 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
else
{
sgot = bfd_get_section_by_name (dynobj, ".got");
BFD_ASSERT (elf_section_data (sgot) != NULL);
g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
BFD_ASSERT (g != NULL);
if (sgot == NULL)
g = NULL;
else
{
BFD_ASSERT (elf_section_data (sgot) != NULL);
g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
BFD_ASSERT (g != NULL);
}
}
sreloc = NULL;