From 68588f95404f3301816c765ecd617a585ad50bac Mon Sep 17 00:00:00 2001 From: Iain Sandoe Date: Tue, 3 Jan 2012 13:18:48 +0000 Subject: support stabs on mach-o GAS. bfd: * mach-o.c (bfd_mach_o_mangle_symbols): Put in the section index for stabd symbols. (bfd_mach_o_primary_symbol_sort_key): Adjust for stabs. (bfd_mach_o_cf_symbols): Likewise. gas: * config/obj-macho.c (obj_macho_process_stab): New. * config/obj-macho.h (OBJ_PROCESS_STAB): Define. (obj_macho_process_stab): Declare. --- bfd/mach-o.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) (limited to 'bfd/mach-o.c') diff --git a/bfd/mach-o.c b/bfd/mach-o.c index d534448..26fde7d 100644 --- a/bfd/mach-o.c +++ b/bfd/mach-o.c @@ -1625,19 +1625,25 @@ bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) } static unsigned -bfd_mach_o_primary_symbol_sort_key (unsigned type, unsigned ext) +bfd_mach_o_primary_symbol_sort_key (unsigned type) { - /* TODO: Determine the correct ordering of stabs symbols. */ - /* We make indirect symbols a local/synthetic. */ - if (type == BFD_MACH_O_N_INDR) + unsigned mtyp = type & BFD_MACH_O_N_TYPE; + + /* Just leave debug symbols where they are (pretend they are local, and + then they will just be sorted on position). */ + if (type & BFD_MACH_O_N_STAB) + return 0; + + /* Sort indirects to last. */ + if (mtyp == BFD_MACH_O_N_INDR) return 3; /* Local (we should never see an undefined local AFAICT). */ - if (! ext) + if (! (type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))) return 0; /* Common symbols look like undefined externs. */ - if (type == BFD_MACH_O_N_UNDF) + if (mtyp == BFD_MACH_O_N_UNDF) return 2; /* A defined symbol that's not indirect or extern. */ @@ -1651,19 +1657,15 @@ bfd_mach_o_cf_symbols (const void *a, const void *b) bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b; unsigned int soa, sob; - soa = bfd_mach_o_primary_symbol_sort_key - (sa->n_type & BFD_MACH_O_N_TYPE, - sa->n_type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)); - sob = bfd_mach_o_primary_symbol_sort_key - (sb->n_type & BFD_MACH_O_N_TYPE, - sb->n_type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)); + soa = bfd_mach_o_primary_symbol_sort_key (sa->n_type); + sob = bfd_mach_o_primary_symbol_sort_key (sb->n_type); if (soa < sob) return -1; if (soa > sob) return 1; - /* If it's local, just preserve the input order. */ + /* If it's local or stab, just preserve the input order. */ if (soa == 0) { if (sa->symbol.udata.i < sb->symbol.udata.i) @@ -1782,10 +1784,12 @@ bfd_mach_o_mangle_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata) } /* Put the section index in, where required. */ - if (s->symbol.section != bfd_abs_section_ptr + if ((s->symbol.section != bfd_abs_section_ptr && s->symbol.section != bfd_und_section_ptr && s->symbol.section != bfd_com_section_ptr) - s->n_sect = s->symbol.section->target_index; + || ((s->n_type & BFD_MACH_O_N_STAB) != 0 + && s->symbol.name == NULL)) + s->n_sect = s->symbol.section->target_index; /* Unless we're looking at an indirect sym, note the input ordering. We use this to keep local symbols ordered as per the input. */ -- cgit v1.1