diff options
author | Ian Lance Taylor <ian@airs.com> | 1998-07-01 21:03:27 +0000 |
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committer | Ian Lance Taylor <ian@airs.com> | 1998-07-01 21:03:27 +0000 |
commit | 70f549105f43b8c583c85f5343e45cef59bb590f (patch) | |
tree | fc874e047717691b41dc490d17dd0aee95ab473b | |
parent | 40d8aa2c1b334052494b3df6ad61cec8e80d78d5 (diff) | |
download | gdb-70f549105f43b8c583c85f5343e45cef59bb590f.zip gdb-70f549105f43b8c583c85f5343e45cef59bb590f.tar.gz gdb-70f549105f43b8c583c85f5343e45cef59bb590f.tar.bz2 |
* coff-sh.c (sh_relax_delete_bytes): Correct address comparisons
when handling 32 bit immediate relocs.
* elf32-sh.c (sh_elf_relax_delete_bytes): Likewise.
-rw-r--r-- | bfd/ChangeLog | 6 | ||||
-rw-r--r-- | bfd/coff-sh.c | 626 |
2 files changed, 452 insertions, 180 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 2cb05c1..75b7f97 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +Wed Jul 1 16:58:50 1998 Ian Lance Taylor <ian@cygnus.com> + + * coff-sh.c (sh_relax_delete_bytes): Correct address comparisons + when handling 32 bit immediate relocs. + * elf32-sh.c (sh_elf_relax_delete_bytes): Likewise. + Tue Jun 30 09:55:03 1998 Jeffrey A Law (law@cygnus.com) * section.c (STD_SECTION): Account for recently added gc_mark diff --git a/bfd/coff-sh.c b/bfd/coff-sh.c index 746bea7..ca68c56 100644 --- a/bfd/coff-sh.c +++ b/bfd/coff-sh.c @@ -1,5 +1,5 @@ /* BFD back-end for Hitachi Super-H COFF binaries. - Copyright 1993, 1994, 1995, 1996 Free Software Foundation, Inc. + Copyright 1993, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. Contributed by Cygnus Support. Written by Steve Chamberlain, <sac@cygnus.com>. Relaxing code written by Ian Lance Taylor, <ian@cygnus.com>. @@ -22,7 +22,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" -#include "obstack.h" #include "libbfd.h" #include "bfdlink.h" #include "coff/sh.h" @@ -33,6 +32,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ static bfd_reloc_status_type sh_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); static long get_symbol_value PARAMS ((asymbol *)); +static boolean sh_merge_private_data PARAMS ((bfd *, bfd *)); static boolean sh_relax_section PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); static boolean sh_relax_delete_bytes @@ -41,7 +41,7 @@ static const struct sh_opcode *sh_insn_info PARAMS ((unsigned int)); static boolean sh_align_loads PARAMS ((bfd *, asection *, struct internal_reloc *, bfd_byte *, boolean *)); static boolean sh_swap_insns - PARAMS ((bfd *, asection *, struct internal_reloc *, bfd_byte *, bfd_vma)); + PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma)); static boolean sh_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, struct internal_reloc *, struct internal_syment *, asection **)); @@ -49,8 +49,8 @@ static bfd_byte *sh_coff_get_relocated_section_contents PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, boolean, asymbol **)); -/* Default section alignment to 2**2. */ -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) +/* Default section alignment to 2**4. */ +#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (4) /* Generate long file names. */ #define COFF_LONG_FILENAMES @@ -276,6 +276,20 @@ static reloc_howto_type sh_coff_howtos[] = true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ + + HOWTO (R_SH_SWITCH8, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + sh_reloc, /* special_function */ + "r_switch8", /* name */ + true, /* partial_inplace */ + 0xff, /* src_mask */ + 0xff, /* dst_mask */ false) /* pcrel_offset */ }; @@ -348,7 +362,8 @@ get_symbol_value (symbol) cache_ptr->addend = - (ptr->section->vma + ptr->value); \ else \ cache_ptr->addend = 0; \ - if ((reloc).r_type == R_SH_SWITCH16 \ + if ((reloc).r_type == R_SH_SWITCH8 \ + || (reloc).r_type == R_SH_SWITCH16 \ || (reloc).r_type == R_SH_SWITCH32 \ || (reloc).r_type == R_SH_USES \ || (reloc).r_type == R_SH_COUNT \ @@ -427,6 +442,32 @@ sh_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, return bfd_reloc_ok; } +/* This routine checks for linking big and little endian objects + together. */ + +static boolean +sh_merge_private_data (ibfd, obfd) + bfd *ibfd; + bfd *obfd; +{ + if (ibfd->xvec->byteorder != obfd->xvec->byteorder + && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) + { + (*_bfd_error_handler) + ("%s: compiled for a %s endian system and target is %s endian", + bfd_get_filename (ibfd), + bfd_big_endian (ibfd) ? "big" : "little", + bfd_big_endian (obfd) ? "big" : "little"); + + bfd_set_error (bfd_error_wrong_format); + return false; + } + + return true; +} + +#define coff_bfd_merge_private_bfd_data sh_merge_private_data + /* We can do relaxing. */ #define coff_bfd_relax_section sh_relax_section @@ -558,7 +599,9 @@ sh_relax_section (abfd, sec, link_info, again) the register load. The 4 is because the r_offset field is computed as though it were a jump offset, which are based from 4 bytes after the jump instruction. */ - laddr = irel->r_vaddr - sec->vma + 4 + irel->r_offset; + laddr = irel->r_vaddr - sec->vma + 4; + /* Careful to sign extend the 32-bit offset. */ + laddr += ((irel->r_offset & 0xffffffff) ^ 0x80000000) - 0x80000000; if (laddr >= sec->_raw_size) { (*_bfd_error_handler) ("%s: 0x%lx: warning: bad R_SH_USES offset", @@ -568,8 +611,7 @@ sh_relax_section (abfd, sec, link_info, again) } insn = bfd_get_16 (abfd, contents + laddr); - /* If the instruction is not mov.l NN,rN, we don't know what to - do. */ + /* If the instruction is not mov.l NN,rN, we don't know what to do. */ if ((insn & 0xf000) != 0xd000) { ((*_bfd_error_handler) @@ -929,11 +971,12 @@ sh_relax_delete_bytes (abfd, sec, addr, count) /* Adjust all the relocs. */ for (irel = coff_section_data (abfd, sec)->relocs; irel < irelend; irel++) { - bfd_vma nraddr, start, stop; + bfd_vma nraddr, stop; + bfd_vma start = 0; int insn = 0; struct internal_syment sym; int off, adjust, oinsn; - bfd_signed_vma voff; + bfd_signed_vma voff = 0; boolean overflow; /* Get the new reloc address. */ @@ -951,7 +994,8 @@ sh_relax_delete_bytes (abfd, sec, addr, count) && irel->r_vaddr - sec->vma < addr + count && irel->r_type != R_SH_ALIGN && irel->r_type != R_SH_CODE - && irel->r_type != R_SH_DATA) + && irel->r_type != R_SH_DATA + && irel->r_type != R_SH_LABEL) irel->r_type = R_SH_UNUSED; /* If this is a PC relative reloc, see if the range it covers @@ -995,7 +1039,7 @@ sh_relax_delete_bytes (abfd, sec, addr, count) val = bfd_get_32 (abfd, contents + nraddr); val += sym.n_value; - if (val >= addr && val < toaddr) + if (val > addr && val < toaddr) bfd_put_32 (abfd, val - count, contents + nraddr); } start = stop = addr; @@ -1035,6 +1079,7 @@ sh_relax_delete_bytes (abfd, sec, addr, count) stop = (start &~ (bfd_vma) 3) + 4 + off * 4; break; + case R_SH_SWITCH8: case R_SH_SWITCH16: case R_SH_SWITCH32: /* These relocs types represent @@ -1060,6 +1105,8 @@ sh_relax_delete_bytes (abfd, sec, addr, count) if (irel->r_type == R_SH_SWITCH16) voff = bfd_get_signed_16 (abfd, contents + nraddr); + else if (irel->r_type == R_SH_SWITCH8) + voff = bfd_get_8 (abfd, contents + nraddr); else voff = bfd_get_signed_32 (abfd, contents + nraddr); stop = (bfd_vma) ((bfd_signed_vma) start + voff); @@ -1124,6 +1171,13 @@ sh_relax_delete_bytes (abfd, sec, addr, count) bfd_put_16 (abfd, insn, contents + nraddr); break; + case R_SH_SWITCH8: + voff += adjust; + if (voff < 0 || voff >= 0xff) + overflow = true; + bfd_put_8 (abfd, voff, contents + nraddr); + break; + case R_SH_SWITCH16: voff += adjust; if (voff < - 0x8000 || voff >= 0x8000) @@ -1221,7 +1275,7 @@ sh_relax_delete_bytes (abfd, sec, addr, count) val = bfd_get_32 (abfd, ocontents + irelscan->r_vaddr - o->vma); val += sym.n_value; - if (val >= addr && val < toaddr) + if (val > addr && val < toaddr) bfd_put_32 (abfd, val - count, ocontents + irelscan->r_vaddr - o->vma); @@ -1281,16 +1335,16 @@ sh_relax_delete_bytes (abfd, sec, addr, count) r_vaddr for it already. */ if (irelalign != NULL) { - bfd_vma alignaddr; + bfd_vma alignto, alignaddr; + alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_offset); alignaddr = BFD_ALIGN (irelalign->r_vaddr - sec->vma, 1 << irelalign->r_offset); - if (alignaddr != toaddr) + if (alignto != alignaddr) { /* Tail recursion. */ - return sh_relax_delete_bytes (abfd, sec, - irelalign->r_vaddr - sec->vma, - 1 << irelalign->r_offset); + return sh_relax_delete_bytes (abfd, sec, alignaddr, + alignto - alignaddr); } } @@ -1883,7 +1937,8 @@ sh_insn_uses_freg (insn, op, freg) /* See whether instructions I1 and I2 conflict, assuming I1 comes before I2. OP1 and OP2 are the corresponding sh_opcode structures. - This should return true if the instructions can be swapped safely. */ + This should return true if there is a conflict, or false if the + instructions can be swapped safely. */ static boolean sh_insns_conflict (i1, op1, i2, op2) @@ -1902,7 +1957,7 @@ sh_insns_conflict (i1, op1, i2, op2) return true; if ((f1 & SETSSP) != 0 && (f2 & USESSP) != 0) - return false; + return true; if ((f2 & SETSSP) != 0 && (f1 & USESSP) != 0) return true; @@ -1972,6 +2027,189 @@ sh_load_use (i1, op1, i2, op2) return false; } +/* Try to align loads and stores within a span of memory. This is + called by both the ELF and the COFF sh targets. ABFD and SEC are + the BFD and section we are examining. CONTENTS is the contents of + the section. SWAP is the routine to call to swap two instructions. + RELOCS is a pointer to the internal relocation information, to be + passed to SWAP. PLABEL is a pointer to the current label in a + sorted list of labels; LABEL_END is the end of the list. START and + STOP are the range of memory to examine. If a swap is made, + *PSWAPPED is set to true. */ + +boolean +_bfd_sh_align_load_span (abfd, sec, contents, swap, relocs, + plabel, label_end, start, stop, pswapped) + bfd *abfd; + asection *sec; + bfd_byte *contents; + boolean (*swap) PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma)); + PTR relocs; + bfd_vma **plabel; + bfd_vma *label_end; + bfd_vma start; + bfd_vma stop; + boolean *pswapped; +{ + bfd_vma i; + + /* Instructions should be aligned on 2 byte boundaries. */ + if ((start & 1) == 1) + ++start; + + /* Now look through the unaligned addresses. */ + i = start; + if ((i & 2) == 0) + i += 2; + for (; i < stop; i += 4) + { + unsigned int insn; + const struct sh_opcode *op; + unsigned int prev_insn = 0; + const struct sh_opcode *prev_op = NULL; + + insn = bfd_get_16 (abfd, contents + i); + op = sh_insn_info (insn); + if (op == NULL + || (op->flags & (LOAD | STORE)) == 0) + continue; + + /* This is a load or store which is not on a four byte boundary. */ + + while (*plabel < label_end && **plabel < i) + ++*plabel; + + if (i > start) + { + prev_insn = bfd_get_16 (abfd, contents + i - 2); + prev_op = sh_insn_info (prev_insn); + + /* If the load/store instruction is in a delay slot, we + can't swap. */ + if (prev_op == NULL + || (prev_op->flags & DELAY) != 0) + continue; + } + if (i > start + && (*plabel >= label_end || **plabel != i) + && prev_op != NULL + && (prev_op->flags & (LOAD | STORE)) == 0 + && ! sh_insns_conflict (prev_insn, prev_op, insn, op)) + { + boolean ok; + + /* The load/store instruction does not have a label, and + there is a previous instruction; PREV_INSN is not + itself a load/store instruction, and PREV_INSN and + INSN do not conflict. */ + + ok = true; + + if (i >= start + 4) + { + unsigned int prev2_insn; + const struct sh_opcode *prev2_op; + + prev2_insn = bfd_get_16 (abfd, contents + i - 4); + prev2_op = sh_insn_info (prev2_insn); + + /* If the instruction before PREV_INSN has a delay + slot--that is, PREV_INSN is in a delay slot--we + can not swap. */ + if (prev2_op == NULL + || (prev2_op->flags & DELAY) != 0) + ok = false; + + /* If the instruction before PREV_INSN is a load, + and it sets a register which INSN uses, then + putting INSN immediately after PREV_INSN will + cause a pipeline bubble, so there is no point to + making the swap. */ + if (ok + && (prev2_op->flags & LOAD) != 0 + && sh_load_use (prev2_insn, prev2_op, insn, op)) + ok = false; + } + + if (ok) + { + if (! (*swap) (abfd, sec, relocs, contents, i - 2)) + return false; + *pswapped = true; + continue; + } + } + + while (*plabel < label_end && **plabel < i + 2) + ++*plabel; + + if (i + 2 < stop + && (*plabel >= label_end || **plabel != i + 2)) + { + unsigned int next_insn; + const struct sh_opcode *next_op; + + /* There is an instruction after the load/store + instruction, and it does not have a label. */ + next_insn = bfd_get_16 (abfd, contents + i + 2); + next_op = sh_insn_info (next_insn); + if (next_op != NULL + && (next_op->flags & (LOAD | STORE)) == 0 + && ! sh_insns_conflict (insn, op, next_insn, next_op)) + { + boolean ok; + + /* NEXT_INSN is not itself a load/store instruction, + and it does not conflict with INSN. */ + + ok = true; + + /* If PREV_INSN is a load, and it sets a register + which NEXT_INSN uses, then putting NEXT_INSN + immediately after PREV_INSN will cause a pipeline + bubble, so there is no reason to make this swap. */ + if (prev_op != NULL + && (prev_op->flags & LOAD) != 0 + && sh_load_use (prev_insn, prev_op, next_insn, next_op)) + ok = false; + + /* If INSN is a load, and it sets a register which + the insn after NEXT_INSN uses, then doing the + swap will cause a pipeline bubble, so there is no + reason to make the swap. However, if the insn + after NEXT_INSN is itself a load or store + instruction, then it is misaligned, so + optimistically hope that it will be swapped + itself, and just live with the pipeline bubble if + it isn't. */ + if (ok + && i + 4 < stop + && (op->flags & LOAD) != 0) + { + unsigned int next2_insn; + const struct sh_opcode *next2_op; + + next2_insn = bfd_get_16 (abfd, contents + i + 4); + next2_op = sh_insn_info (next2_insn); + if ((next2_op->flags & (LOAD | STORE)) == 0 + && sh_load_use (insn, op, next2_insn, next2_op)) + ok = false; + } + + if (ok) + { + if (! (*swap) (abfd, sec, relocs, contents, i)) + return false; + *pswapped = true; + continue; + } + } + } + } + + return true; +} + /* Look for loads and stores which we can align to four byte boundaries. See the longer comment above sh_relax_section for why this is desirable. This sets *PSWAPPED if some instruction was @@ -2015,7 +2253,7 @@ sh_align_loads (abfd, sec, internal_relocs, contents, pswapped) for (irel = internal_relocs; irel < irelend; irel++) { - bfd_vma start, stop, i; + bfd_vma start, stop; if (irel->r_type != R_SH_CODE) continue; @@ -2030,162 +2268,10 @@ sh_align_loads (abfd, sec, internal_relocs, contents, pswapped) else stop = sec->_cooked_size; - /* Instructions should be aligned on 2 byte boundaries. */ - if ((start & 1) == 1) - ++start; - - /* Now look through the unaligned addresses. */ - i = start; - if ((i & 2) == 0) - i += 2; - for (; i < stop; i += 4) - { - unsigned int insn; - const struct sh_opcode *op; - unsigned int prev_insn = 0; - const struct sh_opcode *prev_op = NULL; - - insn = bfd_get_16 (abfd, contents + i); - op = sh_insn_info (insn); - if (op == NULL - || (op->flags & (LOAD | STORE)) == 0) - continue; - - /* This is a load or store which is not on a four byte - boundary. */ - - while (label < label_end && *label < i) - ++label; - - if (i > start) - { - prev_insn = bfd_get_16 (abfd, contents + i - 2); - prev_op = sh_insn_info (prev_insn); - - /* If the load/store instruction is in a delay slot, we - can't swap. */ - if (prev_op == NULL - || (prev_op->flags & DELAY) != 0) - continue; - } - if (i > start - && (label >= label_end || *label != i) - && prev_op != NULL - && (prev_op->flags & (LOAD | STORE)) == 0 - && ! sh_insns_conflict (prev_insn, prev_op, insn, op)) - { - boolean ok; - - /* The load/store instruction does not have a label, and - there is a previous instruction; PREV_INSN is not - itself a load/store instruction, and PREV_INSN and - INSN do not conflict. */ - - ok = true; - - if (i >= start + 4) - { - unsigned int prev2_insn; - const struct sh_opcode *prev2_op; - - prev2_insn = bfd_get_16 (abfd, contents + i - 4); - prev2_op = sh_insn_info (prev2_insn); - - /* If the instruction before PREV_INSN has a delay - slot--that is, PREV_INSN is in a delay slot--we - can not swap. */ - if (prev2_op == NULL - || (prev2_op->flags & DELAY) != 0) - ok = false; - - /* If the instruction before PREV_INSN is a load, - and it sets a register which INSN uses, then - putting INSN immediately after PREV_INSN will - cause a pipeline bubble, so there is no point to - making the swap. */ - if (ok - && (prev2_op->flags & LOAD) != 0 - && sh_load_use (prev2_insn, prev2_op, insn, op)) - ok = false; - } - - if (ok) - { - if (! sh_swap_insns (abfd, sec, internal_relocs, - contents, i - 2)) - goto error_return; - *pswapped = true; - continue; - } - } - - while (label < label_end && *label < i + 2) - ++label; - - if (i + 2 < stop - && (label >= label_end || *label != i + 2)) - { - unsigned int next_insn; - const struct sh_opcode *next_op; - - /* There is an instruction after the load/store - instruction, and it does not have a label. */ - next_insn = bfd_get_16 (abfd, contents + i + 2); - next_op = sh_insn_info (next_insn); - if (next_op != NULL - && (next_op->flags & (LOAD | STORE)) == 0 - && ! sh_insns_conflict (insn, op, next_insn, next_op)) - { - boolean ok; - - /* NEXT_INSN is not itself a load/store instruction, - and it does not conflict with INSN. */ - - ok = true; - - /* If PREV_INSN is a load, and it sets a register - which NEXT_INSN uses, then putting NEXT_INSN - immediately after PREV_INSN will cause a pipeline - bubble, so there is no reason to make this swap. */ - if (prev_op != NULL - && (prev_op->flags & LOAD) != 0 - && sh_load_use (prev_insn, prev_op, next_insn, next_op)) - ok = false; - - /* If INSN is a load, and it sets a register which - the insn after NEXT_INSN uses, then doing the - swap will cause a pipeline bubble, so there is no - reason to make the swap. However, if the insn - after NEXT_INSN is itself a load or store - instruction, then it is misaligned, so - optimistically hope that it will be swapped - itself, and just live with the pipeline bubble if - it isn't. */ - if (ok - && i + 4 < stop - && (op->flags & LOAD) != 0) - { - unsigned int next2_insn; - const struct sh_opcode *next2_op; - - next2_insn = bfd_get_16 (abfd, contents + i + 4); - next2_op = sh_insn_info (next2_insn); - if ((next2_op->flags & (LOAD | STORE)) == 0 - && sh_load_use (insn, op, next2_insn, next2_op)) - ok = false; - } - - if (ok) - { - if (! sh_swap_insns (abfd, sec, internal_relocs, - contents, i)) - goto error_return; - *pswapped = true; - continue; - } - } - } - } + if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_swap_insns, + (PTR) internal_relocs, &label, + label_end, start, stop, pswapped)) + goto error_return; } free (labels); @@ -2201,13 +2287,14 @@ sh_align_loads (abfd, sec, internal_relocs, contents, pswapped) /* Swap two SH instructions. */ static boolean -sh_swap_insns (abfd, sec, internal_relocs, contents, addr) +sh_swap_insns (abfd, sec, relocs, contents, addr) bfd *abfd; asection *sec; - struct internal_reloc *internal_relocs; + PTR relocs; bfd_byte *contents; bfd_vma addr; { + struct internal_reloc *internal_relocs = (struct internal_reloc *) relocs; unsigned short i1, i2; struct internal_reloc *irel, *irelend; @@ -2374,6 +2461,15 @@ sh_relocate_section (output_bfd, info, input_bfd, input_section, contents, } else { + if (symndx < 0 + || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)) + { + (*_bfd_error_handler) + ("%s: illegal symbol index %ld in relocs", + bfd_get_filename (input_bfd), symndx); + bfd_set_error (bfd_error_bad_value); + return false; + } h = obj_coff_sym_hashes (input_bfd)[symndx]; sym = syms + symndx; } @@ -2676,3 +2772,173 @@ const bfd_target shlcoff_vec = COFF_SWAP_TABLE, }; + +/* Some people want versions of the SH COFF target which do not align + to 16 byte boundaries. We implement that by adding a couple of new + target vectors. These are just like the ones above, but they + change the default section alignment. To generate them in the + assembler, use -small. To use them in the linker, use -b + coff-sh{l}-small and -oformat coff-sh{l}-small. + + Yes, this is a horrible hack. A general solution for setting + section alignment in COFF is rather complex. ELF handles this + correctly. */ + +/* Only recognize the small versions if the target was not defaulted. + Otherwise we won't recognize the non default endianness. */ + +static const bfd_target * +coff_small_object_p (abfd) + bfd *abfd; +{ + if (abfd->target_defaulted) + { + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + return coff_object_p (abfd); +} + +/* Set the section alignment for the small versions. */ + +static boolean +coff_small_new_section_hook (abfd, section) + bfd *abfd; + asection *section; +{ + if (! coff_new_section_hook (abfd, section)) + return false; + + /* We must align to at least a four byte boundary, because longword + accesses must be on a four byte boundary. */ + if (section->alignment_power == COFF_DEFAULT_SECTION_ALIGNMENT_POWER) + section->alignment_power = 2; + + return true; +} + +/* This is copied from bfd_coff_std_swap_table so that we can change + the default section alignment power. */ + +static const bfd_coff_backend_data bfd_coff_small_swap_table = +{ + coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, + coff_swap_aux_out, coff_swap_sym_out, + coff_swap_lineno_out, coff_swap_reloc_out, + coff_swap_filehdr_out, coff_swap_aouthdr_out, + coff_swap_scnhdr_out, + FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, +#ifdef COFF_LONG_FILENAMES + true, +#else + false, +#endif +#ifdef COFF_LONG_SECTION_NAMES + true, +#else + false, +#endif + 2, + coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, + coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, + coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, + coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, + coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, + coff_sym_is_global, coff_compute_section_file_positions, + coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, + coff_adjust_symndx, coff_link_add_one_symbol, + coff_link_output_has_begun, coff_final_link_postscript +}; + +#define coff_small_close_and_cleanup \ + coff_close_and_cleanup +#define coff_small_bfd_free_cached_info \ + coff_bfd_free_cached_info +#define coff_small_get_section_contents \ + coff_get_section_contents +#define coff_small_get_section_contents_in_window \ + coff_get_section_contents_in_window + +const bfd_target shcoff_small_vec = +{ + "coff-sh-small", /* name */ + bfd_target_coff_flavour, + BFD_ENDIAN_BIG, /* data byte order is big */ + BFD_ENDIAN_BIG, /* header byte order is big */ + + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), + + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), + '_', /* leading symbol underscore */ + '/', /* ar_pad_char */ + 15, /* ar_max_namelen */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ + + {_bfd_dummy_target, coff_small_object_p, /* bfd_check_format */ + bfd_generic_archive_p, _bfd_dummy_target}, + {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ + bfd_false}, + {bfd_false, coff_write_object_contents, /* bfd_write_contents */ + _bfd_write_archive_contents, bfd_false}, + + BFD_JUMP_TABLE_GENERIC (coff_small), + BFD_JUMP_TABLE_COPY (coff), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), + BFD_JUMP_TABLE_SYMBOLS (coff), + BFD_JUMP_TABLE_RELOCS (coff), + BFD_JUMP_TABLE_WRITE (coff), + BFD_JUMP_TABLE_LINK (coff), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + (PTR) &bfd_coff_small_swap_table +}; + +const bfd_target shlcoff_small_vec = +{ + "coff-shl-small", /* name */ + bfd_target_coff_flavour, + BFD_ENDIAN_LITTLE, /* data byte order is little */ + BFD_ENDIAN_LITTLE, /* header byte order is little endian too*/ + + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), + + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), + '_', /* leading symbol underscore */ + '/', /* ar_pad_char */ + 15, /* ar_max_namelen */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ + + {_bfd_dummy_target, coff_small_object_p, /* bfd_check_format */ + bfd_generic_archive_p, _bfd_dummy_target}, + {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ + bfd_false}, + {bfd_false, coff_write_object_contents, /* bfd_write_contents */ + _bfd_write_archive_contents, bfd_false}, + + BFD_JUMP_TABLE_GENERIC (coff_small), + BFD_JUMP_TABLE_COPY (coff), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), + BFD_JUMP_TABLE_SYMBOLS (coff), + BFD_JUMP_TABLE_RELOCS (coff), + BFD_JUMP_TABLE_WRITE (coff), + BFD_JUMP_TABLE_LINK (coff), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + (PTR) &bfd_coff_small_swap_table +}; 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