/*** bfd backend for sunos binaries */ /* Copyright (C) 1990, 1991 Free Software Foundation, Inc. This file is part of BFD, the Binary File Diddler. BFD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version. BFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with BFD; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* $Id$ * */ #define TARGET_BYTE_ORDER_BIG_P 1 #include #include "sysdep.h" #include "bfd.h" #include "libbfd.h" void (*bfd_error_trap)(); /*SUPPRESS558*/ /*SUPPRESS529*/ typedef void generic_symbol_type; /* These values are correct for the SPARC. I dunno about anything else */ #define PAGE_SIZE 0x02000 #define SEGMENT_SIZE PAGE_SIZE #define TEXT_START_ADDR PAGE_SIZE #include "a.out.gnu.h" #include "stab.gnu.h" #include "ar.h" #include "liba.out.h" /* BFD a.out internal data structures */ #include "a.out.sun4.h" #define CTOR_TABLE_RELOC_IDX 2 static CONST reloc_howto_type howto_table_ext[] = { /* type rs size bsz pcrel bitpos abs ovrf sf name partial inplace mask*/ { (unsigned int) RELOC_8, 0, 0, 8, false, 0, true, true,0,"8", false, 0x000000ff}, { (unsigned int) RELOC_16, 0, 1, 16, false, 0, true, true,0,"16", false, 0x0000ffff}, { (unsigned int) RELOC_32, 0, 2, 32, false, 0, true, true,0,"32", false, 0xffffffff}, { (unsigned int) RELOC_DISP8, 0, 0, 8, true, 0, false, true,0,"DISP8", false, 0x000000ff}, { (unsigned int) RELOC_DISP16, 0, 1, 16, true, 0, false, true,0,"DISP16", false, 0x0000ffff}, { (unsigned int) RELOC_DISP32, 0, 2, 32, true, 0, false, true,0,"DISP32", false, 0xffffffff}, { (unsigned int) RELOC_WDISP30,2, 2, 30, true, 0, false, true,0,"WDISP30", false, 0x3fffffff}, { (unsigned int) RELOC_WDISP22,2, 2, 22, true, 0, false, true,0,"WDISP22", false, 0x003fffff}, { (unsigned int) RELOC_HI22, 10, 2, 22, false, 0, false, true,0,"HI22", false, 0x003fffff}, { (unsigned int) RELOC_22, 0, 2, 22, false, 0, false, true,0,"22", false, 0x003fffff}, { (unsigned int) RELOC_13, 0, 2, 13, false, 0, false, true,0,"13", false, 0x00001fff}, { (unsigned int) RELOC_LO10, 0, 2, 10, false, 0, false, true,0,"LO10", false, 0x000003ff}, { (unsigned int) RELOC_SFA_BASE,0, 2, 32, false, 0, false, true,0,"SFA_BASE", false, 0xffffffff}, { (unsigned int) RELOC_SFA_OFF13,0,2, 32, false, 0, false, true,0,"SFA_OFF13",false, 0xffffffff}, { (unsigned int) RELOC_BASE10, 0, 2, 16, false, 0, false, true,0,"BASE10", false, 0x0000ffff}, { (unsigned int) RELOC_BASE13, 0, 2, 13, false, 0, false, true,0,"BASE13", false, 0x00001fff}, { (unsigned int) RELOC_BASE22, 0, 2, 0, false, 0, false, true,0,"BASE22", false, 0x00000000}, { (unsigned int) RELOC_PC10, 0, 2, 10, false, 0, false, true,0,"PC10", false, 0x000003ff}, { (unsigned int) RELOC_PC22, 0, 2, 22, false, 0, false, true,0,"PC22", false, 0x003fffff}, { (unsigned int) RELOC_JMP_TBL,0, 2, 32, false, 0, false, true,0,"JMP_TBL", false, 0xffffffff}, { (unsigned int) RELOC_SEGOFF16,0, 2, 0, false, 0, false, true,0,"SEGOFF16", false, 0x00000000}, { (unsigned int) RELOC_GLOB_DAT,0, 2, 0, false, 0, false, true,0,"GLOB_DAT", false, 0x00000000}, { (unsigned int) RELOC_JMP_SLOT,0, 2, 0, false, 0, false, true,0,"JMP_SLOT", false, 0x00000000}, { (unsigned int) RELOC_RELATIVE,0, 2, 0, false, 0, false, true,0,"RELATIVE", false, 0x00000000}, { (unsigned int) RELOC_JUMPTARG,2, 13, 16, true, 0, false, true,0,"JUMPTARG", false, 0x0000ffff}, { (unsigned int) RELOC_CONST, 0, 13, 16, false, 0, false, true,0,"CONST", false, 0x0000ffff}, { (unsigned int) RELOC_CONSTH, 16, 13, 16, false, 0, false, true,0,"CONSTH", false, 0x0000ffff}, }; /* Convert standard reloc records to "arelent" format (incl byte swap). */ static CONST reloc_howto_type howto_table_std[] = { /* type rs size bsz pcrel bitpos abs ovrf sf name*/ { (unsigned int) 0, 0, 0, 8, false, 0, true, true,0,"8", true, 0x000000ff}, { (unsigned int) 1, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff}, { (unsigned int) 2, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff}, { (unsigned int) 3, 0, 3, 64, false, 0, true, true,0,"64", true, 0xdeaddead}, { (unsigned int) 4, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff}, { (unsigned int) 5, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff}, { (unsigned int) 6, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff}, { (unsigned int) 7, 0, 3, 64, true, 0, false, true,0,"DISP64", true, 0xfeedface}, }; /** a.out files */ PROTO (void , sunos4_write_syms, ()); PROTO (static boolean,sunos4_squirt_out_relocs,(bfd *abfd, asection *section)); static size_t reloc_size_func(abfd) bfd *abfd; { switch (bfd_get_architecture (abfd)) { case bfd_arch_sparc: case bfd_arch_a29k: return RELOC_EXT_SIZE; default: return RELOC_STD_SIZE; } } void bfd_aout_swap_exec_header_in (abfd, raw_bytes, execp) bfd *abfd; unsigned char *raw_bytes; struct exec *execp; { struct exec_bytes *bytes = (struct exec_bytes *)raw_bytes; /* Now fill in fields in the execp, from the bytes in the raw data. */ execp->a_info = bfd_h_getlong (abfd, bytes->a_info); execp->a_text = bfd_h_getlong (abfd, bytes->a_text); execp->a_data = bfd_h_getlong (abfd, bytes->a_data); execp->a_bss = bfd_h_getlong (abfd, bytes->a_bss); execp->a_syms = bfd_h_getlong (abfd, bytes->a_syms); execp->a_entry = bfd_h_getlong (abfd, bytes->a_entry); execp->a_trsize = bfd_h_getlong (abfd, bytes->a_trsize); execp->a_drsize = bfd_h_getlong (abfd, bytes->a_drsize); } void bfd_aout_swap_exec_header_out (abfd, execp, raw_bytes) bfd *abfd; struct exec *execp; unsigned char *raw_bytes; { struct exec_bytes *bytes = (struct exec_bytes *)raw_bytes; /* Now fill in fields in the raw data, from the fields in the exec struct. */ bfd_h_putlong (abfd, execp->a_info , bytes->a_info); bfd_h_putlong (abfd, execp->a_text , bytes->a_text); bfd_h_putlong (abfd, execp->a_data , bytes->a_data); bfd_h_putlong (abfd, execp->a_bss , bytes->a_bss); bfd_h_putlong (abfd, execp->a_syms , bytes->a_syms); bfd_h_putlong (abfd, execp->a_entry , bytes->a_entry); bfd_h_putlong (abfd, execp->a_trsize, bytes->a_trsize); bfd_h_putlong (abfd, execp->a_drsize, bytes->a_drsize); } /* Steve wants some way to frob this stuff from Saber while he's debugging ld, so we have these funny shadow functions */ /* ZMAGIC's start at 0 (making the exec part of the text section), other formats start after the exec */ static unsigned int n_txtoff(ptr) struct exec *ptr; {return N_MAGIC(*ptr)== ZMAGIC ? 0: sizeof(struct exec);} static unsigned int n_datoff(ptr) struct exec *ptr; {return n_txtoff(ptr) + ptr->a_text;} static unsigned int n_treloff(ptr) struct exec *ptr; {return n_datoff(ptr) + ptr->a_data;} static unsigned int n_dreloff(ptr) struct exec *ptr; {return n_treloff(ptr) + ptr->a_trsize;} static unsigned int n_symoff(ptr) struct exec *ptr; {return n_dreloff(ptr) + ptr->a_drsize;} static unsigned int n_stroff(ptr) struct exec *ptr; {return n_symoff(ptr) + ptr->a_syms;} unsigned int n_badmag(ptr) struct exec *ptr; { switch (N_MAGIC(*ptr)) { case OMAGIC: case NMAGIC: case ZMAGIC: return 0; default: return 1; } } bfd_target * sunos4_object_p (abfd) bfd *abfd; { unsigned char magicbuf[4]; /* Raw bytes of magic number from file */ unsigned long magic; /* Swapped magic number */ unsigned char exec_bytes[EXEC_BYTES_SIZE]; /* Raw bytes of exec hdr */ struct exec *execp; void *rawptr; bfd_error = system_call_error; if (bfd_read ((void *)magicbuf, 1, sizeof (magicbuf), abfd) != sizeof (magicbuf)) return 0; magic = bfd_h_getlong (abfd, magicbuf); /* Baroque syntax to mask deficiencies of the Sun compiler */ /* if (N_BADMAG (*((struct exec *) &magic))) return 0; */ if (n_badmag ((struct exec *) &magic)) return 0; if (bfd_seek (abfd, 0L, false) < 0) return 0; if (bfd_read ((void *) exec_bytes, 1, EXEC_BYTES_SIZE, abfd) != EXEC_BYTES_SIZE) { bfd_error = wrong_format; return 0; } /* Use an intermediate variable for clarity */ rawptr = (void *) zalloc (sizeof (struct sunexdata) + sizeof (struct exec)); if (rawptr == NULL) { bfd_error = no_memory; return 0; } set_tdata (abfd, ((struct sunexdata *) rawptr)); exec_hdr (abfd) = execp = (struct exec *) ((char *)rawptr + sizeof (struct sunexdata)); bfd_aout_swap_exec_header_in (abfd, exec_bytes, execp); /* Set the file flags */ abfd->flags = NO_FLAGS; if (execp->a_drsize || execp->a_trsize) abfd->flags |= HAS_RELOC; if (execp->a_entry) abfd->flags |= EXEC_P; if (execp->a_syms) abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; if (N_MAGIC (*execp) == ZMAGIC) abfd->flags |= D_PAGED; if (N_MAGIC (*execp) == NMAGIC) abfd->flags |= WP_TEXT; /* Determine the architecture and machine type of the object file. */ abfd->obj_arch = bfd_arch_unknown; /* Default values */ abfd->obj_machine = 0; switch (N_MACHTYPE (*execp)) { case M_UNKNOWN: break; case M_68010: abfd->obj_arch = bfd_arch_m68k; abfd->obj_machine = 68010; break; case M_68020: abfd->obj_arch = bfd_arch_m68k; abfd->obj_machine = 68020; break; case M_SPARC: abfd->obj_arch = bfd_arch_sparc; break; case M_386: abfd->obj_arch = bfd_arch_i386; break; case M_29K: abfd->obj_arch = bfd_arch_a29k; break; default: abfd->obj_arch = bfd_arch_obscure; break; } bfd_get_start_address (abfd) = execp->a_entry; /* Remember the positions of the string table and symbol table. */ obj_str_filepos (abfd) = n_stroff (execp); obj_sym_filepos (abfd) = n_symoff (execp); /* create the sections. This is raunchy, but bfd_close wants to reclaim them */ obj_textsec (abfd) = (asection *)NULL; obj_datasec (abfd) = (asection *)NULL; obj_bsssec (abfd) = (asection *)NULL; obj_aout_symbols(abfd) = (aout_symbol_type *)NULL; (void)bfd_make_section(abfd, ".text"); (void)bfd_make_section(abfd, ".data"); (void)bfd_make_section(abfd, ".bss"); obj_datasec (abfd)->size = execp->a_data; obj_bsssec (abfd)->size = execp->a_bss; obj_textsec (abfd)->size = execp->a_text; obj_datasec (abfd)->vma = N_DATADDR(*execp); obj_bsssec (abfd)->vma = N_BSSADDR(*execp); obj_textsec (abfd)->vma = N_TXTADDR(*execp); obj_textsec (abfd)->filepos = N_TXTOFF(*execp); obj_datasec (abfd)->filepos = N_DATOFF(*execp); obj_textsec (abfd)->rel_filepos = N_TROFF(*execp); obj_datasec (abfd)->rel_filepos = N_DROFF(*execp); obj_textsec (abfd)->flags = (execp->a_trsize != 0 ? (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) : (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)); obj_datasec (abfd)->flags = (execp->a_drsize != 0 ? (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) : (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)); obj_bsssec (abfd)->flags = SEC_ALLOC; abfd->sections = obj_textsec (abfd); obj_textsec (abfd)->next = obj_datasec (abfd); obj_datasec (abfd)->next = obj_bsssec (abfd); return abfd->xvec; } boolean sunos4_mkobject (abfd) bfd *abfd; { char *rawptr; bfd_error = system_call_error; /* Use an intermediate variable for clarity */ rawptr = zalloc (sizeof (struct sunexdata) + sizeof (struct exec)); if (rawptr == NULL) { bfd_error = no_memory; return false; } abfd->tdata = (void *)((struct sunexdata *) rawptr); exec_hdr (abfd) = (struct exec *) (rawptr + sizeof (struct sunexdata)); /* For simplicity's sake we just make all the sections right here. */ obj_textsec (abfd) = (asection *)NULL; obj_datasec (abfd) = (asection *)NULL; obj_bsssec (abfd) = (asection *)NULL; bfd_make_section (abfd, ".text"); bfd_make_section (abfd, ".data"); bfd_make_section (abfd, ".bss"); return true; } /* Keep track of machine architecture and machine type for a.out's. Return the machine_type for a particular arch&machine, or M_UNKNOWN if that exact arch&machine can't be represented in a.out format. If the architecture is understood, machine type 0 (default) should always be understood. */ static enum machine_type aout_machine_type (arch, machine) enum bfd_architecture arch; unsigned long machine; { enum machine_type arch_flags; arch_flags = M_UNKNOWN; switch (arch) { case bfd_arch_sparc: if (machine == 0) arch_flags = M_SPARC; break; case bfd_arch_m68k: switch (machine) { case 0: arch_flags = M_UNKNOWN; break; case 68000: arch_flags = M_UNKNOWN; break; case 68010: arch_flags = M_68010; break; case 68020: arch_flags = M_68020; break; default: arch_flags = M_UNKNOWN; break; } break; case bfd_arch_i386: if (machine == 0) arch_flags = M_386; break; case bfd_arch_a29k: if (machine == 0) arch_flags = M_29K; break; default: arch_flags = M_UNKNOWN; break; } return arch_flags; } boolean sunos4_set_arch_mach (abfd, arch, machine) bfd *abfd; enum bfd_architecture arch; unsigned long machine; { abfd->obj_arch = arch; abfd->obj_machine = machine; if (arch != bfd_arch_unknown && aout_machine_type (arch, machine) == M_UNKNOWN) return false; /* We can't represent this type */ return true; /* We're easy ... */ } boolean sunos4_write_object_contents (abfd) bfd *abfd; { unsigned int data_pad = 0; unsigned char exec_bytes[EXEC_BYTES_SIZE]; struct exec *execp = exec_hdr (abfd); execp->a_text = obj_textsec (abfd)->size; /* Magic number, maestro, please! */ switch (bfd_get_architecture(abfd)) { case bfd_arch_m68k: switch (bfd_get_machine(abfd)) { case 68010: N_SET_MACHTYPE(*execp, M_68010); break; default: case 68020: N_SET_MACHTYPE(*execp, M_68020); break; } break; case bfd_arch_sparc: N_SET_MACHTYPE(*execp, M_SPARC); break; case bfd_arch_i386: N_SET_MACHTYPE(*execp, M_386); break; case bfd_arch_a29k: N_SET_MACHTYPE(*execp, M_29K); break; default: N_SET_MACHTYPE(*execp, M_UNKNOWN); } N_SET_MAGIC (*execp, OMAGIC); if (abfd->flags & D_PAGED) { execp->a_text = obj_textsec (abfd)->size + sizeof(struct exec); N_SET_MAGIC (*execp, ZMAGIC); } else if (abfd->flags & WP_TEXT) { N_SET_MAGIC (*execp, NMAGIC); } N_SET_FLAGS (*execp, 0x1); /* copied from ld.c; who the hell knows? */ if (abfd->flags & D_PAGED) { data_pad = ((obj_datasec(abfd)->size + PAGE_SIZE -1) & (- PAGE_SIZE)) - obj_datasec(abfd)->size; if (data_pad > obj_bsssec(abfd)->size) execp->a_bss = 0; else execp->a_bss = obj_bsssec(abfd)->size - data_pad; execp->a_data = obj_datasec(abfd)->size + data_pad; } else { execp->a_data = obj_datasec (abfd)->size; execp->a_bss = obj_bsssec (abfd)->size; } execp->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist); execp->a_entry = bfd_get_start_address (abfd); execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * reloc_size_func(abfd)); execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * reloc_size_func(abfd)); bfd_aout_swap_exec_header_out (abfd, execp, exec_bytes); bfd_seek (abfd, 0L, false); bfd_write ((void *) exec_bytes, 1, EXEC_BYTES_SIZE, abfd); /* Now write out reloc info, followed by syms and strings */ if (bfd_get_symcount (abfd) != 0) { bfd_seek (abfd, (long)(N_SYMOFF(*execp)), false); sunos4_write_syms (abfd); bfd_seek (abfd, (long)(N_TROFF(*execp)), false); if (!sunos4_squirt_out_relocs (abfd, obj_textsec (abfd))) return false; bfd_seek (abfd, (long)(N_DROFF(*execp)), false); if (!sunos4_squirt_out_relocs (abfd, obj_datasec (abfd))) return false; } return true; } /** core files */ /** core files */ #define CORE_MAGIC 0x080456 #define CORE_NAMELEN 16 /* The core structure is taken from the Sun documentation. Unfortunately, they don't document the FPA structure, or at least I can't find it easily. Fortunately the core header contains its own length. So this shouldn't cause problems, except for c_ucode, which so far we don't use but is easy to find with a little arithmetic. */ /* But the reg structure can be gotten from the SPARC processor handbook. This really should be in a GNU include file though so that gdb can use the same info. */ struct regs { int r_psr; int r_pc; int r_npc; int r_y; int r_g1; int r_g2; int r_g3; int r_g4; int r_g5; int r_g6; int r_g7; int r_o0; int r_o1; int r_o2; int r_o3; int r_o4; int r_o5; int r_o6; int r_o7; }; /* Taken from Sun documentation: */ /* FIXME: It's worse than we expect. This struct contains TWO substructs neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't even portably access the stuff in between! */ struct core { int c_magic; /* Corefile magic number */ int c_len; /* Sizeof (struct core) */ struct regs c_regs; /* General purpose registers */ struct exec c_aouthdr; /* A.out header */ int c_signo; /* Killing signal, if any */ int c_tsize; /* Text size (bytes) */ int c_dsize; /* Data size (bytes) */ int c_ssize; /* Stack size (bytes) */ char c_cmdname[CORE_NAMELEN + 1]; /* Command name */ double fp_stuff[1]; /* external FPU state (size unknown by us) */ /* The type "double" is critical here, for alignment. SunOS declares a struct here, but the struct's alignment is double since it contains doubles. */ int c_ucode; /* Exception no. from u_code */ /* (this member is not accessible by name since we don't portably know the size of fp_stuff.) */ }; /* Supposedly the user stack grows downward from the bottom of kernel memory. Presuming that this remains true, this definition will work. */ #define USRSTACK (-(128*1024*1024)) PROTO (static void, swapcore, (bfd *abfd, struct core *core)); /* need this cast b/c ptr is really void * */ #define core_hdr(bfd) (((struct suncordata *) (bfd->tdata))->hdr) #define core_datasec(bfd) (((struct suncordata *) ((bfd)->tdata))->data_section) #define core_stacksec(bfd) (((struct suncordata*)((bfd)->tdata))->stack_section) #define core_regsec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg_section) #define core_reg2sec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg2_section) /* These are stored in the bfd's tdata */ struct suncordata { struct core *hdr; /* core file header */ asection *data_section; asection *stack_section; asection *reg_section; asection *reg2_section; }; bfd_target * sunos4_core_file_p (abfd) bfd *abfd; { unsigned char longbuf[4]; /* Raw bytes of various header fields */ int core_size; int core_mag; struct core *core; char *rawptr; bfd_error = system_call_error; if (bfd_read ((void *)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf)) return 0; core_mag = bfd_h_getlong (abfd, longbuf); if (core_mag != CORE_MAGIC) return 0; /* SunOS core headers can vary in length; second word is size; */ if (bfd_read ((void *)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf)) return 0; core_size = bfd_h_getlong (abfd, longbuf); /* Sanity check */ if (core_size > 20000) return 0; if (bfd_seek (abfd, 0L, false) < 0) return 0; rawptr = zalloc (core_size + sizeof (struct suncordata)); if (rawptr == NULL) { bfd_error = no_memory; return 0; } core = (struct core *) (rawptr + sizeof (struct suncordata)); if ((bfd_read ((void *) core, 1, core_size, abfd)) != core_size) { bfd_error = system_call_error; free ((void *)rawptr); return 0; } swapcore (abfd, core); set_tdata (abfd, ((struct suncordata *) rawptr)); core_hdr (abfd) = core; /* create the sections. This is raunchy, but bfd_close wants to reclaim them */ core_stacksec (abfd) = (asection *) zalloc (sizeof (asection)); if (core_stacksec (abfd) == NULL) { loser: bfd_error = no_memory; free ((void *)rawptr); return 0; } core_datasec (abfd) = (asection *) zalloc (sizeof (asection)); if (core_datasec (abfd) == NULL) { loser1: free ((void *)core_stacksec (abfd)); goto loser; } core_regsec (abfd) = (asection *) zalloc (sizeof (asection)); if (core_regsec (abfd) == NULL) { loser2: free ((void *)core_datasec (abfd)); goto loser1; } core_reg2sec (abfd) = (asection *) zalloc (sizeof (asection)); if (core_reg2sec (abfd) == NULL) { free ((void *)core_regsec (abfd)); goto loser2; } core_stacksec (abfd)->name = ".stack"; core_datasec (abfd)->name = ".data"; core_regsec (abfd)->name = ".reg"; core_reg2sec (abfd)->name = ".reg2"; core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD; core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD; core_regsec (abfd)->flags = SEC_ALLOC; core_reg2sec (abfd)->flags = SEC_ALLOC; core_stacksec (abfd)->size = core->c_ssize; core_datasec (abfd)->size = core->c_dsize; core_regsec (abfd)->size = (sizeof core->c_regs); /* Float regs take up end of struct, except c_ucode. */ core_reg2sec (abfd)->size = core_size - (sizeof core->c_ucode) - (file_ptr)(((struct core *)0)->fp_stuff); core_stacksec (abfd)->vma = (USRSTACK - core->c_ssize); core_datasec (abfd)->vma = N_DATADDR(core->c_aouthdr); core_regsec (abfd)->vma = -1; core_reg2sec (abfd)->vma = -1; core_stacksec (abfd)->filepos = core->c_len + core->c_dsize; core_datasec (abfd)->filepos = core->c_len; /* In file header: */ core_regsec (abfd)->filepos = (file_ptr)(&((struct core *)0)->c_regs); core_reg2sec (abfd)->filepos = (file_ptr)(((struct core *)0)->fp_stuff); /* Align to word at least */ core_stacksec (abfd)->alignment_power = 2; core_datasec (abfd)->alignment_power = 2; core_regsec (abfd)->alignment_power = 2; core_reg2sec (abfd)->alignment_power = 2; abfd->sections = core_stacksec (abfd); core_stacksec (abfd)->next = core_datasec (abfd); core_datasec (abfd)->next = core_regsec (abfd); core_regsec (abfd)->next = core_reg2sec (abfd); abfd->section_count = 4; return abfd->xvec; } char * sunos4_core_file_failing_command (abfd) bfd *abfd; { return core_hdr (abfd)->c_cmdname; } int sunos4_core_file_failing_signal (abfd) bfd *abfd; { return core_hdr (abfd)->c_signo; } boolean sunos4_core_file_matches_executable_p (core_bfd, exec_bfd) bfd *core_bfd, *exec_bfd; { if (core_bfd->xvec != exec_bfd->xvec) { bfd_error = system_call_error; return false; } return (bcmp ((char *)&core_hdr (core_bfd), (char*) &exec_hdr (exec_bfd), sizeof (struct exec)) == 0) ? true : false; } /* byte-swap core structure */ /* FIXME, this needs more work to swap IN a core struct from raw bytes */ static void swapcore (abfd, core) bfd *abfd; struct core *core; { unsigned char exec_bytes[EXEC_BYTES_SIZE]; core->c_magic = bfd_h_getlong (abfd, (unsigned char *)&core->c_magic); core->c_len = bfd_h_getlong (abfd, (unsigned char *)&core->c_len ); /* Leave integer registers in target byte order. */ bcopy ((char *)&(core->c_aouthdr), (char *)exec_bytes, EXEC_BYTES_SIZE); bfd_aout_swap_exec_header_in (abfd, exec_bytes, &core->c_aouthdr); core->c_signo = bfd_h_getlong (abfd, (unsigned char *)&core->c_signo); core->c_tsize = bfd_h_getlong (abfd, (unsigned char *)&core->c_tsize); core->c_dsize = bfd_h_getlong (abfd, (unsigned char *)&core->c_dsize); core->c_ssize = bfd_h_getlong (abfd, (unsigned char *)&core->c_ssize); /* Leave FP registers in target byte order. */ /* Leave "c_ucode" unswapped for now, since we can't find it easily. */ } /** exec and core file sections */ boolean sunos4_new_section_hook (abfd, newsect) bfd *abfd; asection *newsect; { /* align to double at least */ newsect->alignment_power = 3; if (bfd_get_format (abfd) == bfd_object) { if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) { obj_textsec(abfd)= newsect; return true; } if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) { obj_datasec(abfd) = newsect; return true; } if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) { obj_bsssec(abfd) = newsect; return true; } } /* We allow more than three sections internally */ return true; } boolean sunos4_set_section_contents (abfd, section, location, offset, count) bfd *abfd; sec_ptr section; unsigned char *location; file_ptr offset; int count; { if (abfd->output_has_begun == false) { /* set by bfd.c handler */ if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL) /*|| (obj_textsec (abfd)->size == 0) || (obj_datasec (abfd)->size= 0)*/ ) { bfd_error = invalid_operation; return false; } #if 0 if (abfd->flags & D_PAGED) { obj_textsec (abfd)->filepos = sizeof(struct exec); obj_datasec(abfd)->filepos = obj_textsec (abfd)->size; } else #endif { obj_textsec (abfd)->filepos = sizeof(struct exec); obj_datasec(abfd)->filepos = obj_textsec(abfd)->filepos + obj_textsec (abfd)->size; } } /* regardless, once we know what we're doing, we might as well get going */ bfd_seek (abfd, section->filepos + offset, SEEK_SET); if (count) { return (bfd_write ((void *)location, 1, count, abfd) == count) ? true : false; } return false; } boolean sunos4_get_section_contents (abfd, section, location, offset, count) bfd *abfd; sec_ptr section; void *location; file_ptr offset; int count; { if (count) { if (offset >= section->size) return false; bfd_seek (abfd, section->filepos + offset, SEEK_SET); return (bfd_read (location, 1, count, abfd) == count) ? true:false; } else return true; } /* Classify stabs symbols */ #define sym_in_text_section(sym) \ (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_TEXT) #define sym_in_data_section(sym) \ (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_DATA) #define sym_in_bss_section(sym) \ (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_BSS) /* Symbol is undefined if type is N_UNDF|N_EXT and if it has zero in the "value" field. Nonzeroes there are fortrancommon symbols. */ #define sym_is_undefined(sym) \ ((sym)->n_type == (N_UNDF | N_EXT) && (sym)->n_value == 0) /* Symbol is a global definition if N_EXT is on and if it has a nonzero type field. */ #define sym_is_global_defn(sym) \ (((sym)->n_type & N_EXT) && (sym)->n_type & N_TYPE) /* Symbol is debugger info if any bits outside N_TYPE or N_EXT are on. */ #define sym_is_debugger_info(sym) \ ((sym)->n_type & ~(N_EXT | N_TYPE)) #define sym_is_fortrancommon(sym) \ (((sym)->n_type == (N_EXT)) && (sym)->n_value != 0) /* Symbol is absolute if it has N_ABS set */ #define sym_is_absolute(sym) \ (((sym)->n_type & N_TYPE)== N_ABS) #define sym_is_indirect(sym) \ (((sym)->n_type & N_ABS)== N_ABS) /* Only in their own functions for ease of debugging; when sym flags have stabilised these should be inlined into their (single) caller */ static void translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd) struct nlist *sym_pointer; aout_symbol_type *cache_ptr; bfd *abfd; { switch (cache_ptr->type & N_TYPE) { case N_SETA: case N_SETT: case N_SETD: case N_SETB: { asection *section = bfd_make_section(abfd, cache_ptr->symbol.name); arelent_chain *reloc = (arelent_chain *)malloc(sizeof(arelent_chain)); switch ( (cache_ptr->type & N_TYPE) ) { case N_SETA: reloc->relent.section = (asection *)NULL; cache_ptr->symbol.section = (asection *)NULL; break; case N_SETT: reloc->relent.section = (asection *)obj_textsec(abfd); cache_ptr->symbol.value -= reloc->relent.section->vma; break; case N_SETD: reloc->relent.section = (asection *)obj_datasec(abfd); cache_ptr->symbol.value -= reloc->relent.section->vma; break; case N_SETB: reloc->relent.section = (asection *)obj_bsssec(abfd); cache_ptr->symbol.value -= reloc->relent.section->vma; break; } cache_ptr->symbol.section = reloc->relent.section; reloc->relent.addend = cache_ptr->symbol.value ; /* We modify the symbol to belong to a section depending upon the name of the symbol - probably __CTOR__ or __DTOR__ but we don't really care, and add to the size of the section to contain a pointer to the symbol. Build a reloc entry to relocate to this symbol attached to this section. */ section->flags = SEC_CONSTRUCTOR; section->reloc_count++; section->alignment_power = 2; reloc->relent.sym_ptr_ptr = (asymbol **)NULL; reloc->next = section->constructor_chain; section->constructor_chain = reloc; reloc->relent.address = section->size; section->size += sizeof(int *); reloc->relent.howto = howto_table_ext +CTOR_TABLE_RELOC_IDX; cache_ptr->symbol.flags |= BSF_DEBUGGING ; } break; default: if (sym_is_debugger_info (sym_pointer)) { cache_ptr->symbol.flags = BSF_DEBUGGING ; /* Work out the section correct for this symbol */ switch (sym_pointer->n_type & N_TYPE) { case N_TEXT: case N_FN: cache_ptr->symbol.section = obj_textsec (abfd); cache_ptr->symbol.value -= obj_textsec(abfd)->vma; break; case N_DATA: cache_ptr->symbol.value -= obj_datasec(abfd)->vma; cache_ptr->symbol.section = obj_datasec (abfd); break; case N_BSS : cache_ptr->symbol.section = obj_bsssec (abfd); cache_ptr->symbol.value -= obj_bsssec(abfd)->vma; break; case N_ABS: default: cache_ptr->symbol.section = 0; break; } } else { if (sym_is_fortrancommon (sym_pointer)) { cache_ptr->symbol.flags = BSF_FORT_COMM; cache_ptr->symbol.section = (asection *)NULL; } else { if (sym_is_undefined (sym_pointer)) { cache_ptr->symbol.flags = BSF_UNDEFINED; } else if (sym_is_global_defn (sym_pointer)) { cache_ptr->symbol.flags = BSF_GLOBAL | BSF_EXPORT; } else if (sym_is_absolute (sym_pointer)) { cache_ptr->symbol.flags = BSF_ABSOLUTE; } else { cache_ptr->symbol.flags = BSF_LOCAL; } /* In a.out, the value of a symbol is always relative to the * start of the file, if this is a data symbol we'll subtract * the size of the text section to get the section relative * value. If this is a bss symbol (which would be strange) * we'll subtract the size of the previous two sections * to find the section relative address. */ if (sym_in_text_section (sym_pointer)) { cache_ptr->symbol.value -= obj_textsec(abfd)->vma; cache_ptr->symbol.section = obj_textsec (abfd); } else if (sym_in_data_section (sym_pointer)){ cache_ptr->symbol.value -= obj_datasec(abfd)->vma; cache_ptr->symbol.section = obj_datasec (abfd); } else if (sym_in_bss_section(sym_pointer)) { cache_ptr->symbol.section = obj_bsssec (abfd); cache_ptr->symbol.value -= obj_bsssec(abfd)->vma; } else { cache_ptr->symbol.section = (asection *)NULL; cache_ptr->symbol.flags |= BSF_ABSOLUTE; } } } } } void translate_to_native_sym_flags (sym_pointer, cache_ptr_g, abfd) struct nlist *sym_pointer; generic_symbol_type *cache_ptr_g; bfd *abfd; { asymbol *cache_ptr = (asymbol *)cache_ptr_g; /* FIXME check for wrigin bss */ if (bfd_get_section(cache_ptr)) { if (bfd_get_output_section(cache_ptr) == obj_bsssec (abfd)) { sym_pointer->n_type |= N_BSS; } else if (bfd_get_output_section(cache_ptr) == obj_datasec (abfd)) { sym_pointer->n_type |= N_DATA; } else if (bfd_get_output_section(cache_ptr) == obj_textsec (abfd)) { sym_pointer->n_type |= N_TEXT; } else { bfd_error_trap(bfd_error_nonrepresentable_section, bfd_get_output_section(cache_ptr)->name); } /* Turn the symbol from section relative to absolute again */ sym_pointer->n_value += cache_ptr->section->output_section->vma + cache_ptr->section->output_offset ; } else { sym_pointer->n_type |= N_ABS; } if (cache_ptr->flags & (BSF_FORT_COMM | BSF_UNDEFINED)) { sym_pointer->n_type = (N_UNDF | N_EXT); return; } if (cache_ptr->flags & BSF_ABSOLUTE) { sym_pointer->n_type |= N_ABS; } if (cache_ptr->flags & (BSF_GLOBAL | BSF_EXPORT)) { sym_pointer->n_type |= N_EXT; } if (cache_ptr->flags & BSF_DEBUGGING) { sym_pointer->n_type = ((aout_symbol_type *)cache_ptr)->type; } } /* Native-level interface to symbols. */ /* We read the symbols into a buffer, which is discarded when this function exits. We read the strings into a buffer large enough to hold them all plus all the cached symbol entries. */ asymbol * sunos4_make_empty_symbol (abfd) bfd *abfd; { aout_symbol_type *new = (aout_symbol_type *)zalloc (sizeof (aout_symbol_type)); new->symbol.the_bfd = abfd; return &new->symbol; } boolean sunos4_slurp_symbol_table (abfd) bfd *abfd; { unsigned int symbol_count; size_t symbol_size; size_t string_size; struct nlist *syms; char *strings; aout_symbol_type *cached; /* If there's no work to be done, don't do any */ if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true; symbol_size = exec_hdr(abfd)->a_syms; if (symbol_size == 0) { bfd_error = no_symbols; return false; } bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); if (bfd_read ((void *)&string_size, 4, 1, abfd) != 4) return false; string_size = bfd_h_getlong (abfd, (unsigned char *)&string_size); symbol_count = symbol_size / sizeof (struct nlist); /* Malloc (should alloca) space for native symbols, and malloc space for string table and symbol cache. */ syms = (struct nlist *) zalloc (symbol_size); if (syms == NULL) { bfd_error = no_memory; return false; } cached = (aout_symbol_type *) zalloc ((size_t)(string_size + 1 + (symbol_count * sizeof (aout_symbol_type)))); if (cached == NULL) { bfd_error = no_memory; free ((void *)syms); return false; } strings = ((char *) cached) + (symbol_count * sizeof (aout_symbol_type)); bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET); if (bfd_read ((void *)syms, 1, symbol_size, abfd) != symbol_size) { bailout: free ((void *)cached); free ((void*)syms); return false; } bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); if (bfd_read ((void *)strings, 1, string_size, abfd) != string_size) { goto bailout; } /* OK, now walk the new symtable, cacheing symbol properties */ { register struct nlist *sym_pointer; register struct nlist *sym_end = syms + symbol_count; register aout_symbol_type *cache_ptr = cached; if (bfd_header_twiddle_required (abfd) == true) { /* run through the table and byte swap if needed */ for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++) { sym_pointer->n_un.n_strx = bfd_h_get_x (abfd, &sym_pointer->n_un.n_strx); sym_pointer->n_desc = bfd_h_get_x (abfd, &sym_pointer->n_desc); sym_pointer->n_value = bfd_h_get_x (abfd, &sym_pointer->n_value); sym_pointer->n_other = (char) bfd_h_get_x(abfd, &sym_pointer->n_other); sym_pointer->n_type = (char) bfd_h_get_x(abfd, &sym_pointer->n_type); } } /* Run through table and copy values */ for (sym_pointer = syms, cache_ptr = cached; sym_pointer < sym_end; sym_pointer++, cache_ptr++) { cache_ptr->symbol.the_bfd = abfd; if (sym_pointer->n_un.n_strx) cache_ptr->symbol.name = sym_pointer->n_un.n_strx + strings; else cache_ptr->symbol.name = (char *)NULL; cache_ptr->symbol.value = sym_pointer->n_value; cache_ptr->desc = sym_pointer->n_desc; cache_ptr->other = sym_pointer->n_other; cache_ptr->type = sym_pointer->n_type; cache_ptr->symbol.udata = 0; translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd); } } obj_aout_symbols (abfd) = cached; bfd_get_symcount (abfd) = symbol_count; free ((void *)syms); return true; } void sunos4_write_syms (abfd) bfd *abfd; { unsigned int count ; asymbol **generic = bfd_get_outsymbols (abfd); unsigned int stindex = sizeof(stindex); /* initial string length */ for (count = 0; count < bfd_get_symcount (abfd); count++) { asymbol *g = generic[count]; struct nlist nsp; if (g->name) { unsigned int length = strlen(g->name) +1; bfd_h_putlong (abfd, stindex, (unsigned char *)&nsp.n_un.n_strx); stindex += length; } else { bfd_h_putlong (abfd, 0, (unsigned char *)&nsp.n_un.n_strx); } if (g->the_bfd->xvec->flavour == abfd->xvec->flavour) { nsp.n_desc = aout_symbol( g)->desc; nsp.n_other = aout_symbol(g)->other; nsp.n_type = aout_symbol(g)->type; } else { nsp.n_desc = 0; nsp.n_other = 0; nsp.n_type = 0; } nsp.n_value = g->value; translate_to_native_sym_flags (&nsp, (generic_symbol_type *)g, abfd); bfd_h_putshort (abfd, nsp.n_desc, (unsigned char *)&nsp.n_desc); bfd_h_putlong (abfd, nsp.n_value, (unsigned char *)&nsp.n_value); bfd_write((void *)&nsp,1, sizeof(nsp), abfd); } /* Now output the strings. Be sure to put string length into correct * byte ordering before writing it. */ bfd_h_putlong (abfd, stindex, (unsigned char *)&stindex); bfd_write((void *)&stindex, 1, sizeof(stindex), abfd); generic = bfd_get_outsymbols(abfd); for (count = 0; count < bfd_get_symcount(abfd); count++) { asymbol *g = *(generic++); if (g->name != (char *)NULL) { size_t length = strlen(g->name)+1; bfd_write((void *)g->name, 1, length, abfd); } if ((g->flags & BSF_FAKE)==0) { g->name = itos(count); /* smash the generic symbol */ } } } void sunos4_reclaim_symbol_table (abfd) bfd *abfd; { asection *section; if (!bfd_get_symcount (abfd)) return; for (section = abfd->sections; section != (asection *) NULL; section = section->next) if (section->relocation) { free ((void *)section->relocation); section->relocation = NULL; section->reloc_count = 0; } bfd_get_symcount (abfd) = 0; free ((void *)obj_aout_symbols (abfd)); obj_aout_symbols (abfd) = (aout_symbol_type *)NULL; } unsigned int sunos4_get_symtab_upper_bound (abfd) bfd *abfd; { if (!sunos4_slurp_symbol_table (abfd)) return 0; return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *)); } unsigned int sunos4_get_symtab (abfd, location) bfd *abfd; asymbol **location; { unsigned int counter = 0; aout_symbol_type *symbase; if (!sunos4_slurp_symbol_table (abfd)) return 0; for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);) *(location++) = (asymbol *)( symbase++); *location++ =0; return bfd_get_symcount(abfd); } /* Obsolete procedural interface; better to look at the cache directly */ /* User should have checked the file flags; perhaps we should return BFD_NO_MORE_SYMBOLS if there are none? */ int sunos4_get_symcount_upper_bound (abfd) bfd *abfd; { /* In case we're doing an output file or something...? */ if (bfd_get_symcount (abfd)) return bfd_get_symcount (abfd); return (exec_hdr (abfd)->a_syms) / (sizeof (struct nlist)); } symindex sunos4_get_first_symbol (ignore_abfd) bfd * ignore_abfd; { return 0; } symindex sunos4_get_next_symbol (abfd, oidx) bfd *abfd; symindex oidx; { if (oidx == BFD_NO_MORE_SYMBOLS) return BFD_NO_MORE_SYMBOLS; return ++oidx >= bfd_get_symcount (abfd) ? BFD_NO_MORE_SYMBOLS : oidx; } char * sunos4_symbol_name (abfd, idx) bfd *abfd; symindex idx; { return (obj_aout_symbols (abfd) + idx)->symbol.name; } long sunos4_symbol_value (abfd, idx) bfd *abfd; symindex idx; { return (obj_aout_symbols (abfd) + idx)->symbol.value; } symclass sunos4_classify_symbol (abfd, idx) bfd *abfd; symindex idx; { aout_symbol_type *sym = obj_aout_symbols (abfd) + idx; if ((sym->symbol.flags & BSF_FORT_COMM) != 0) return bfd_symclass_fcommon; if ((sym->symbol.flags & BSF_GLOBAL) != 0) return bfd_symclass_global; if ((sym->symbol.flags & BSF_DEBUGGING) != 0) return bfd_symclass_debugger; if ((sym->symbol.flags & BSF_UNDEFINED) != 0) return bfd_symclass_undefined; return bfd_symclass_unknown; } boolean sunos4_symbol_hasclass (abfd, idx, class) bfd *abfd; symindex idx; symclass class; { aout_symbol_type *sym = obj_aout_symbols (abfd) + idx; switch (class) { case bfd_symclass_fcommon: return (sym->symbol.flags & BSF_FORT_COMM) ? true :false; case bfd_symclass_global: return (sym->symbol.flags & BSF_GLOBAL) ? true:false; case bfd_symclass_debugger: return (sym->symbol.flags & BSF_DEBUGGING) ? true:false;; case bfd_symclass_undefined: return (sym->symbol.flags & BSF_UNDEFINED) ? true:false;; default: return false; } } /* Standard reloc stuff */ /* Output standard relocation information to a file in target byte order. */ void swap_std_reloc_out (abfd, p, natptr, count) bfd *abfd; arelent **p; /* Generic relocation struct */ struct reloc_std_bytes *natptr; unsigned int count; { int r_index; int r_extern; unsigned int r_length; int r_pcrel; int r_baserel, r_jmptable, r_relative; unsigned int r_addend; unsigned int idx; for (idx = 0; idx < count; idx++, p++, natptr++) { arelent *g = *p; bfd_h_putlong (abfd, g->address, natptr->r_address); r_length = g->howto->size; /* Size as a power of two */ r_pcrel = g->howto->pc_relative; /* Relative to PC? */ /* r_baserel, r_jmptable, r_relative??? FIXME-soon */ r_baserel = 0; r_jmptable = 0; r_relative = 0; r_addend = g->addend; /* Start here, see how it goes */ /* name was clobbered by sunos4_write_syms to be symbol index */ if (g->sym_ptr_ptr != NULL) { if ((*(g->sym_ptr_ptr))->section) { /* put the section offset into the addend for output */ r_addend += (*(g->sym_ptr_ptr))->section->vma; } r_index = stoi((*(g->sym_ptr_ptr))->name); r_extern = 1; } else { r_extern = 0; if (g->section == NULL) { BFD_ASSERT(0); r_index = N_ABS | N_EXT; } else if(g->section->output_section == obj_textsec(abfd)) { r_index = N_TEXT | N_EXT; r_addend += g->section->output_section->vma; } else if (g->section->output_section == obj_datasec(abfd)) { r_index = N_DATA | N_EXT; r_addend += g->section->output_section->vma; } else if (g->section->output_section == obj_bsssec(abfd)) { r_index = N_BSS | N_EXT ; r_addend += g->section->output_section->vma; } else { BFD_ASSERT(0); } } /* now the fun stuff */ if (abfd->xvec->header_byteorder_big_p != false) { natptr->r_index[0] = r_index >> 16; natptr->r_index[1] = r_index >> 8; natptr->r_index[2] = r_index; natptr->r_bits[0] = (r_extern? RELOC_STD_BITS_EXTERN_BIG: 0) | (r_pcrel? RELOC_STD_BITS_PCREL_BIG: 0) | (r_baserel? RELOC_STD_BITS_BASEREL_BIG: 0) | (r_jmptable? RELOC_STD_BITS_JMPTABLE_BIG: 0) | (r_relative? RELOC_STD_BITS_RELATIVE_BIG: 0) | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG); } else { natptr->r_index[2] = r_index >> 16; natptr->r_index[1] = r_index >> 8; natptr->r_index[0] = r_index; natptr->r_bits[0] = (r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0) | (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0) | (r_baserel? RELOC_STD_BITS_BASEREL_LITTLE: 0) | (r_jmptable? RELOC_STD_BITS_JMPTABLE_LITTLE: 0) | (r_relative? RELOC_STD_BITS_RELATIVE_LITTLE: 0) | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE); } } } /* Extended stuff */ /* Output extended relocation information to a file in target byte order. */ void swap_ext_reloc_out (abfd, p, natptr, count) bfd *abfd; arelent **p; /* Generic relocation struct */ register struct reloc_ext_bytes *natptr; unsigned int count; { int r_index; int r_extern; unsigned int r_type; unsigned int r_addend; unsigned int idx; for (idx = 0; idx < count; idx++, p++, natptr++) { arelent *g = *p; bfd_h_putlong (abfd, g->address, natptr->r_address); /* Find a type in the output format which matches the input howto - at the moment we assume input format == output format FIXME!! */ r_type = (enum reloc_type) g->howto->type; r_addend = g->addend; /* Start here, see how it goes */ /* name was clobbered by sunos4_write_syms to be symbol index*/ if (g->sym_ptr_ptr != NULL) { if ((*(g->sym_ptr_ptr))->section) { /* put the section offset into the addend for output */ r_addend += (*(g->sym_ptr_ptr))->section->vma; } r_index = stoi((*(g->sym_ptr_ptr))->name); r_extern = 1; } else { r_extern = 0; if (g->section == NULL) { BFD_ASSERT(0); r_index = N_ABS | N_EXT; } else if(g->section->output_section == obj_textsec(abfd)) { r_index = N_TEXT | N_EXT; r_addend += g->section->output_section->vma; } else if (g->section->output_section == obj_datasec(abfd)) { r_index = N_DATA | N_EXT; r_addend += g->section->output_section->vma; } else if (g->section->output_section == obj_bsssec(abfd)) { r_index = N_BSS | N_EXT ; r_addend += g->section->output_section->vma; } else { BFD_ASSERT(0); } } /* now the fun stuff */ if (abfd->xvec->header_byteorder_big_p != false) { natptr->r_index[0] = r_index >> 16; natptr->r_index[1] = r_index >> 8; natptr->r_index[2] = r_index; natptr->r_bits[0] = (r_extern? RELOC_EXT_BITS_EXTERN_BIG: 0) || (r_type << RELOC_EXT_BITS_TYPE_SH_BIG); } else { natptr->r_index[2] = r_index >> 16; natptr->r_index[1] = r_index >> 8; natptr->r_index[0] = r_index; natptr->r_bits[0] = (r_extern? RELOC_EXT_BITS_EXTERN_LITTLE: 0) || (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE); } bfd_h_putlong (abfd, r_addend, natptr->r_addend); } } #define MOVE_ADDRESS(ad) \ if (r_extern) { \ cache_ptr->sym_ptr_ptr = symbols + r_index; \ cache_ptr->section = (asection *)NULL; \ cache_ptr->addend = ad; \ } else { \ cache_ptr->sym_ptr_ptr = (asymbol **)NULL; \ switch (r_index) { \ case N_TEXT: \ case N_TEXT | N_EXT: \ cache_ptr->section = obj_textsec(abfd); \ cache_ptr->addend = ad - su->textsec->vma; \ break; \ case N_DATA: \ case N_DATA | N_EXT: \ cache_ptr->section = obj_datasec(abfd); \ cache_ptr->addend = ad - su->datasec->vma; \ break; \ case N_BSS: \ case N_BSS | N_EXT: \ cache_ptr->section = obj_bsssec(abfd); \ cache_ptr->addend = ad - su->bsssec->vma; \ break; \ case N_ABS: \ case N_ABS | N_EXT: \ BFD_ASSERT(1); \ break; \ default: \ BFD_ASSERT(1); \ break; \ } \ } \ void swap_ext_reloc_in (abfd, bytes, cache_ptr, symbols) bfd *abfd; struct reloc_ext_bytes *bytes; arelent *cache_ptr; asymbol **symbols; { int r_index; int r_extern; unsigned int r_type; struct sunexdata *su = (struct sunexdata *)(abfd->tdata); cache_ptr->address = bfd_h_getlong (abfd, bytes->r_address); /* now the fun stuff */ if (abfd->xvec->header_byteorder_big_p != false) { r_index = (bytes->r_index[0] << 16) | (bytes->r_index[1] << 8) | bytes->r_index[2]; r_extern = (0 != (bytes->r_bits[0] & RELOC_EXT_BITS_EXTERN_BIG)); r_type = (bytes->r_bits[0] & RELOC_EXT_BITS_TYPE_BIG) >> RELOC_EXT_BITS_TYPE_SH_BIG; } else { r_index = (bytes->r_index[2] << 16) | (bytes->r_index[1] << 8) | bytes->r_index[0]; r_extern = (0 != (bytes->r_bits[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); r_type = (bytes->r_bits[0] & RELOC_EXT_BITS_TYPE_LITTLE) >> RELOC_EXT_BITS_TYPE_SH_LITTLE; } cache_ptr->howto = howto_table_ext + r_type; MOVE_ADDRESS(bfd_h_getlong(abfd,bytes->r_addend)); } void swap_std_reloc_in (abfd, bytes, cache_ptr, symbols) bfd *abfd; struct reloc_std_bytes *bytes; arelent *cache_ptr; asymbol **symbols; { int r_index; int r_extern; unsigned int r_length; int r_pcrel; int r_baserel, r_jmptable, r_relative; struct sunexdata *su = (struct sunexdata *)(abfd->tdata); cache_ptr->address = bfd_h_getlong (abfd, bytes->r_address); /* now the fun stuff */ if (abfd->xvec->header_byteorder_big_p != false) { r_index = (bytes->r_index[0] << 16) | (bytes->r_index[1] << 8) | bytes->r_index[2]; r_extern = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_EXTERN_BIG)); r_pcrel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_PCREL_BIG)); r_baserel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_BASEREL_BIG)); r_jmptable= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_JMPTABLE_BIG)); r_relative= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_RELATIVE_BIG)); r_length = (bytes->r_bits[0] & RELOC_STD_BITS_LENGTH_BIG) >> RELOC_STD_BITS_LENGTH_SH_BIG; } else { r_index = (bytes->r_index[2] << 16) | (bytes->r_index[1] << 8) | bytes->r_index[0]; r_extern = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_EXTERN_LITTLE)); r_pcrel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_PCREL_LITTLE)); r_baserel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_BASEREL_LITTLE)); r_jmptable= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); r_relative= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_RELATIVE_LITTLE)); r_length = (bytes->r_bits[0] & RELOC_STD_BITS_LENGTH_LITTLE) >> RELOC_STD_BITS_LENGTH_SH_LITTLE; } cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel; /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */ MOVE_ADDRESS(0); } /* Reloc hackery */ boolean sunos4_slurp_reloc_table (abfd, asect, symbols) bfd *abfd; sec_ptr asect; asymbol **symbols; { unsigned int count; size_t reloc_size; void *relocs; arelent *reloc_cache; size_t each_size; if (asect->relocation) return true; if (asect->flags & SEC_CONSTRUCTOR) return true; if (asect == obj_datasec (abfd)) { reloc_size = exec_hdr(abfd)->a_drsize; goto doit; } if (asect == obj_textsec (abfd)) { reloc_size = exec_hdr(abfd)->a_trsize; goto doit; } bfd_error = invalid_operation; return false; doit: bfd_seek (abfd, asect->rel_filepos, SEEK_SET); each_size = reloc_size_func(abfd); count = reloc_size / each_size; relocs = malloc (reloc_size); if (!relocs) { bfd_error = no_memory; return false; } reloc_cache = (arelent *) zalloc ((size_t)(count * sizeof (arelent))); if (reloc_cache == (arelent *)NULL) { free (relocs); bfd_error = no_memory; return false; } if (bfd_read ( relocs, 1, reloc_size, abfd) != reloc_size) { bfd_error = system_call_error; free (reloc_cache); free (relocs); return false; } if (each_size == RELOC_EXT_SIZE) { register struct reloc_ext_bytes *rptr = relocs; unsigned int counter = 0; arelent *cache_ptr = reloc_cache; for (; counter < count; counter++, rptr++, cache_ptr++) { swap_ext_reloc_in(abfd, rptr, cache_ptr, symbols); } } else { register struct reloc_std_bytes *rptr = relocs; unsigned int counter = 0; arelent *cache_ptr = reloc_cache; for (; counter < count; counter++, rptr++, cache_ptr++) { swap_std_reloc_in(abfd, rptr, cache_ptr, symbols); } } free (relocs); asect->relocation = reloc_cache; asect->reloc_count = count; return true; } /* Write out a relocation section into an object file. */ static boolean sunos4_squirt_out_relocs (abfd, section) bfd *abfd; asection *section; { arelent **generic; unsigned char *native; size_t each_size; unsigned int count = section->reloc_count; size_t natsize; if (count == 0) return true; each_size = reloc_size_func(abfd); natsize = each_size * count; native = (unsigned char *) zalloc (natsize); if (!native) { bfd_error = no_memory; return false; } generic = section->orelocation; if (each_size == RELOC_EXT_SIZE) { swap_ext_reloc_out (abfd, generic, (struct reloc_ext_bytes *)native, count); } else { swap_std_reloc_out(abfd, generic, native, count); } if ( bfd_write ((void *) native, 1, natsize, abfd) != natsize) { free(native); return false; } free (native); return true; } /* This is stupid. This function should be a boolean predicate */ unsigned int sunos4_canonicalize_reloc (abfd, section, relptr, symbols) bfd *abfd; sec_ptr section; arelent **relptr; asymbol **symbols; { arelent *tblptr = section->relocation; unsigned int count; if (!(tblptr || sunos4_slurp_reloc_table (abfd, section, symbols))) return 0; if (section->flags & SEC_CONSTRUCTOR) { arelent_chain *chain = section->constructor_chain; for (count = 0; count < section->reloc_count; count ++) { *relptr ++ = &chain->relent; chain = chain->next; } } else { tblptr = section->relocation; if (!tblptr) return 0; for (count = 0; count++ < section->reloc_count;) { *relptr++ = tblptr++; } } *relptr = 0; return section->reloc_count; } unsigned int sunos4_get_reloc_upper_bound (abfd, asect) bfd *abfd; sec_ptr asect; { if (bfd_get_format (abfd) != bfd_object) { bfd_error = invalid_operation; return 0; } if (asect->flags & SEC_CONSTRUCTOR) { return (sizeof (arelent *) * (asect->reloc_count+1)); } if (asect == obj_datasec (abfd)) return (sizeof (arelent *) * ((exec_hdr(abfd)->a_drsize / reloc_size_func(abfd)) +1)); if (asect == obj_textsec (abfd)) return (sizeof (arelent *) * ((exec_hdr(abfd)->a_trsize / reloc_size_func(abfd)) +1)); bfd_error = invalid_operation; return 0; } void sunos4_reclaim_reloc (ignore_abfd, section) bfd *ignore_abfd; sec_ptr section; { if (section->relocation) { free (section->relocation); section->relocation = NULL; section->reloc_count = 0; } } alent * sunos4_get_lineno(ignore_abfd, ignore_symbol) bfd *ignore_abfd; generic_symbol_type *ignore_symbol; { return (alent *)NULL; } void sunos4_print_symbol(ignore_abfd, file, symbol, how) bfd *ignore_abfd; FILE *file; asymbol *symbol; bfd_print_symbol_enum_type how; { switch (how) { case bfd_print_symbol_name_enum: fprintf(file,"%s", symbol->name); break; case bfd_print_symbol_type_enum: fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff), (unsigned)( aout_symbol(symbol)->other & 0xff), (unsigned)(aout_symbol(symbol)->type)); break; case bfd_print_symbol_all_enum: { char *section_name = symbol->section == (asection *)NULL ? "*abs" : symbol->section->name; bfd_print_symbol_vandf((void *)file,symbol); fprintf(file," %-5s %04x %02x %02x %s", section_name, (unsigned)(aout_symbol(symbol)->desc & 0xffff), (unsigned)(aout_symbol(symbol)->other & 0xff), (unsigned)(aout_symbol(symbol)->type & 0xff), symbol->name); } break; } } /* Once we know all the stuff that could be consed, we know how to clean it up. So why don't we? */ boolean sunos4_close_and_cleanup (abfd) bfd *abfd; { if (!bfd_read_p (abfd)) switch (abfd->format) { case bfd_archive: if (!_bfd_write_archive_contents (abfd)) return false; break; case bfd_object: if (!sunos4_write_object_contents (abfd)) return false; break; default: bfd_error = invalid_operation; return false; } #define cleaner(ptr) if (abfd->ptr) free (abfd->ptr) cleaner (tdata); if (abfd->my_archive) cleaner (filename); #undef cleaner return true; } /* provided a bfd, a section and an offset into the section, calculate and return the name of the source file and the line nearest to the wanted location. */ boolean sunos4_find_nearest_line(abfd, section, symbols, offset, filename_ptr, functionname_ptr, line_ptr) bfd *abfd; asection *section; asymbol **symbols; bfd_vma offset; char **filename_ptr; char **functionname_ptr; unsigned int *line_ptr; { /* Run down the file looking for the filename, function and linenumber */ asymbol **p; static char buffer[100]; bfd_vma high_line_vma = ~0; bfd_vma low_func_vma = 0; asymbol *func = 0; *filename_ptr = abfd->filename; *functionname_ptr = 0; *line_ptr = 0; if (symbols != (asymbol **)NULL) { for (p = symbols; *p; p++) { aout_symbol_type *q = (aout_symbol_type *)(*p); switch (q->type){ case N_SO: *filename_ptr = q->symbol.name; if (obj_textsec(abfd) != section) { return true; } break; case N_SLINE: case N_DSLINE: case N_BSLINE: /* We'll keep this if it resolves nearer than the one we have already */ if (q->symbol.value >= offset && q->symbol.value < high_line_vma) { *line_ptr = q->desc; high_line_vma = q->symbol.value; } break; case N_FUN: { /* We'll keep this if it is nearer than the one we have already */ if (q->symbol.value >= low_func_vma && q->symbol.value <= offset) { low_func_vma = q->symbol.value; func = (asymbol *)q; } if (*line_ptr && func) { char *function = func->name; char *p; strncpy(buffer, function, sizeof(buffer)-1); buffer[sizeof(buffer)-1] = 0; /* Have to remove : stuff */ p = strchr(buffer,':'); if (p != NULL) {*p = NULL; } *functionname_ptr = buffer; return true; } } break; } } } return true; } bfd_target aoutvec = { "a.out-generic-big", /* name */ bfd_target_aout_flavour_enum, true, /* target byte order */ true, /* target headers byte order */ (HAS_RELOC | EXEC_P | /* object flags */ HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ 0, /* valid reloc types */ ' ', /* ar_pad_char */ 16, /* ar_max_namelen */ sunos4_close_and_cleanup, /* _close_and_cleanup */ sunos4_set_section_contents, /* bfd_set_section_contents */ sunos4_get_section_contents, /* bfd_get_section_contents */ sunos4_new_section_hook, /* new_section_hook */ sunos4_core_file_failing_command, /* _core_file_failing_command */ sunos4_core_file_failing_signal, /* _core_file_failing_signal */ sunos4_core_file_matches_executable_p, /* _core_file_matches_ex...p */ bfd_slurp_bsd_armap, /* bfd_slurp_armap */ bfd_true, /* bfd_slurp_extended_name_table */ bfd_bsd_truncate_arname, /* bfd_truncate_arname */ sunos4_get_symtab_upper_bound, /* get_symtab_upper_bound */ sunos4_get_symtab, /* canonicalize_symtab */ sunos4_reclaim_symbol_table, /* bfd_reclaim_symbol_table */ sunos4_get_reloc_upper_bound, /* get_reloc_upper_bound */ sunos4_canonicalize_reloc, /* bfd_canonicalize_reloc */ sunos4_reclaim_reloc, /* bfd_reclaim_reloc */ sunos4_get_symcount_upper_bound, /* bfd_get_symcount_upper_bound */ sunos4_get_first_symbol, /* bfd_get_first_symbol */ sunos4_get_next_symbol, /* bfd_get_next_symbol */ sunos4_classify_symbol, /* bfd_classify_symbol */ sunos4_symbol_hasclass, /* bfd_symbol_hasclass */ sunos4_symbol_name, /* bfd_symbol_name */ sunos4_symbol_value, /* bfd_symbol_value */ _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */ _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */ {_bfd_dummy_target, sunos4_object_p, /* bfd_check_format */ bfd_generic_archive_p, sunos4_core_file_p}, {bfd_false, sunos4_mkobject, /* bfd_zxset_format */ _bfd_generic_mkarchive, bfd_false}, sunos4_make_empty_symbol, sunos4_print_symbol, sunos4_get_lineno, sunos4_set_arch_mach, bsd_write_armap, bfd_generic_openr_next_archived_file, sunos4_find_nearest_line, /* bfd_find_nearest_line */ bfd_generic_stat_arch_elt /* bfd_stat_arch_elt */ };