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* elf32-mips.c (_bfd_mips_elf_merge_private_bfd_data): Clean up.

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Return a useful value.
This commit is contained in:
Ian Lance Taylor
1996-12-31 21:26:27 +00:00
parent 160cca6457
commit 99f1722b7c
1 changed files with 69 additions and 46 deletions
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115
bfd/elf32-mips.c
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@ -1820,6 +1820,7 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
{ {
flagword old_flags; flagword old_flags;
flagword new_flags; flagword new_flags;
boolean ok;
/* Check if we have the same endianess */ /* Check if we have the same endianess */
if (ibfd->xvec->byteorder != obfd->xvec->byteorder if (ibfd->xvec->byteorder != obfd->xvec->byteorder
@ -1843,65 +1844,87 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER; elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
old_flags = elf_elfheader (obfd)->e_flags; old_flags = elf_elfheader (obfd)->e_flags;
if (!elf_flags_init (obfd)) /* First call, no flags set */ if (! elf_flags_init (obfd))
{ {
elf_flags_init (obfd) = true; elf_flags_init (obfd) = true;
elf_elfheader (obfd)->e_flags = new_flags; elf_elfheader (obfd)->e_flags = new_flags;
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
&& bfd_get_arch_info (obfd)->the_default) && bfd_get_arch_info (obfd)->the_default)
bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); {
if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
bfd_get_mach (ibfd)))
return false;
}
return true;
} }
else if (((new_flags ^ old_flags) & ~EF_MIPS_NOREORDER)
== 0) /* Compatible flags are ok */ /* Check flag compatibility. */
;
else /* Incompatible flags */ new_flags &= ~EF_MIPS_NOREORDER;
old_flags &= ~EF_MIPS_NOREORDER;
if (new_flags == old_flags)
return true;
ok = true;
if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC))
{ {
/* Warn about -fPIC mismatch */ new_flags &= ~EF_MIPS_PIC;
if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC)) old_flags &= ~EF_MIPS_PIC;
(*_bfd_error_handler)
("%s: linking PIC files with non-PIC files",
bfd_get_filename (ibfd));
ok = false;
}
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: linking abicalls files with non-abicalls files",
bfd_get_filename (ibfd));
ok = false;
}
/* 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))
{ {
new_flags &= ~EF_MIPS_PIC;
old_flags &= ~EF_MIPS_PIC;
(*_bfd_error_handler) (*_bfd_error_handler)
("%s: needs all files compiled with -fPIC", ("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)",
bfd_get_filename (ibfd)); bfd_get_filename (ibfd), new_isa, old_isa);
ok = false;
} }
if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC)) new_flags &= ~ EF_MIPS_ARCH;
{ old_flags &= ~ EF_MIPS_ARCH;
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 /* Warn about any other mismatches */
-mips3 and -mips4 code. They will normally use the same data if (new_flags != old_flags)
sizes and calling conventions. */ {
if ((new_flags & EF_MIPS_ARCH) != (old_flags & EF_MIPS_ARCH)) (*_bfd_error_handler)
{ ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)",
int new_isa, old_isa; bfd_get_filename (ibfd), (unsigned long) new_flags,
(unsigned long) old_flags);
new_isa = elf_mips_isa (new_flags); ok = false;
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)
("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)",
bfd_get_filename (ibfd), (unsigned long) new_flags,
(unsigned long) old_flags);
if (! ok)
{
bfd_set_error (bfd_error_bad_value); bfd_set_error (bfd_error_bad_value);
return false; return false;
} }