diff options
Diffstat (limited to 'bfd/elf32-sh.c')
| -rw-r--r-- | bfd/elf32-sh.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c index 7f108fb173a..6a027c3ba95 100644 --- a/bfd/elf32-sh.c +++ b/bfd/elf32-sh.c @@ -6414,6 +6414,54 @@ sh_find_elf_flags (unsigned int arch_set) return sh_elf_get_flags_from_mach (bfd_mach); } +/* Merge the architecture type of two BFD files, such that the + resultant architecture supports all the features required + by the two input BFDs. + If the input BFDs are multually incompatible - i.e. one uses + DSP while the other uses FPU - or there is no known architecture + that fits the requirements then an error is emitted. */ + +static bfd_boolean +sh_merge_bfd_arch (bfd *ibfd, bfd *obfd) +{ + unsigned int old_arch, new_arch, merged_arch; + + if (! _bfd_generic_verify_endian_match (ibfd, obfd)) + return FALSE; + + old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd)); + new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd)); + + merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch); + + if (!SH_VALID_CO_ARCH_SET (merged_arch)) + { + _bfd_error_handler + ("%B: uses %s instructions while previous modules " + "use %s instructions", + ibfd, + SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point", + SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp"); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + else if (!SH_VALID_ARCH_SET (merged_arch)) + { + _bfd_error_handler + ("internal error: merge of architecture '%s' with " + "architecture '%s' produced unknown architecture", + bfd_printable_name (obfd), + bfd_printable_name (ibfd)); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + bfd_default_set_arch_mach (obfd, bfd_arch_sh, + sh_get_bfd_mach_from_arch_set (merged_arch)); + + return TRUE; +} + /* This routine initialises the elf flags when required and calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */ |