From 99f1722b7c73a28cd3979373722675da35bd94f9 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Tue, 31 Dec 1996 21:26:27 +0000 Subject: [PATCH] * elf32-mips.c (_bfd_mips_elf_merge_private_bfd_data): Clean up. Return a useful value. --- bfd/elf32-mips.c | 113 ++++++++++++++++++++++++++++------------------- 1 file changed, 68 insertions(+), 45 deletions(-) diff --git a/bfd/elf32-mips.c b/bfd/elf32-mips.c index 93631ace190..8c459081473 100644 --- a/bfd/elf32-mips.c +++ b/bfd/elf32-mips.c @@ -1820,6 +1820,7 @@ _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd) { flagword old_flags; flagword new_flags; + boolean ok; /* Check if we have the same endianess */ 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; 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_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 */ - ; - else /* Incompatible flags */ - { - /* Warn about -fPIC mismatch */ - 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)); + if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), + bfd_get_mach (ibfd))) + return false; } - if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC)) + return true; + } + + /* Check flag compatibility. */ + + 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)) + { + new_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_CPIC; - old_flags &= ~EF_MIPS_CPIC; (*_bfd_error_handler) - ("%s: needs all files compiled with -mabicalls", - bfd_get_filename (ibfd)); + ("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)", + bfd_get_filename (ibfd), new_isa, old_isa); + 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)) - (*_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; - } + 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); + /* 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); + ok = false; + } + if (! ok) + { bfd_set_error (bfd_error_bad_value); return false; } -- 2.30.2