/* BFD back-end for PowerPC Microsoft Portable Executable files.
- Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
Original version pieced together by Kim Knuttila (krk@cygnus.com)
/* Current State:
- objdump works
- relocs generated by gas
+ - ld will link files, but they do not run.
+ - dlltool will not produce correct output in some .reloc cases, and will
+ not produce the right glue code for dll function calls.
*/
#include "bfd.h"
#include "sysdep.h"
+
#include "libbfd.h"
-#include "obstack.h"
#include "coff/powerpc.h"
#include "coff/internal.h"
#include "libcoff.h"
+/* The toc is a set of bfd_vma fields. We use the fact that valid */
+/* addresses are even (i.e. the bit representing "1" is off) to allow */
+/* us to encode a little extra information in the field */
+/* - Unallocated addresses are intialized to 1. */
+/* - Allocated addresses are even numbers. */
+/* The first time we actually write a reference to the toc in the bfd, */
+/* we want to record that fact in a fixup file (if it is asked for), so */
+/* we keep track of whether or not an address has been written by marking */
+/* the low order bit with a "1" upon writing */
+
+#define SET_UNALLOCATED(x) ((x) = 1)
+#define IS_UNALLOCATED(x) ((x) == 1)
+
+#define IS_WRITTEN(x) ((x) & 1)
+#define MARK_AS_WRITTEN(x) ((x) |= 1)
+#define MAKE_ADDR_AGAIN(x) ((x) &= ~1)
+
+
+/* Turn on this check if you suspect something amiss in the hash tables */
+#ifdef DEBUG_HASH
+
+/* Need a 7 char string for an eye catcher */
+#define EYE "krkjunk"
+
+#define HASH_CHECK_DCL char eye_catcher[8];
+#define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE)
+#define HASH_CHECK(addr) \
+ if (strcmp(addr->eye_catcher, EYE) != 0) \
+ { \
+ fprintf(stderr,\
+ "File %s, line %d, Hash check failure, bad eye %8s\n", \
+ __FILE__, __LINE__, addr->eye_catcher); \
+ abort(); \
+ }
+
+
+#else
+
+#define HASH_CHECK_DCL
+#define HASH_CHECK_INIT(ret)
+#define HASH_CHECK(addr)
+
+#endif
+
+/* In order not to add an int to every hash table item for every coff
+ linker, we define our own hash table, derived from the coff one */
+
+/* PE linker hash table entries. */
+
+struct ppc_coff_link_hash_entry
+{
+ struct coff_link_hash_entry root; /* First entry, as required */
+
+ /* As we wonder around the relocs, we'll keep the assigned toc_offset
+ here */
+ bfd_vma toc_offset; /* Our addition, as required */
+ int symbol_is_glue;
+ unsigned long int glue_insn;
+
+ HASH_CHECK_DCL
+};
+
+
+/* PE linker hash table. */
+
+struct ppc_coff_link_hash_table
+{
+ struct coff_link_hash_table root; /* First entry, as required */
+};
+
+static struct bfd_hash_entry *ppc_coff_link_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
+ const char *));
+
+/* Routine to create an entry in the link hash table. */
+
+static struct bfd_hash_entry *
+ppc_coff_link_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct ppc_coff_link_hash_entry *ret =
+ (struct ppc_coff_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == (struct ppc_coff_link_hash_entry *) NULL)
+ ret = (struct ppc_coff_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct ppc_coff_link_hash_entry));
+
+ if (ret == (struct ppc_coff_link_hash_entry *) NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct ppc_coff_link_hash_entry *)
+ _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+ table, string));
+
+ if (ret)
+ {
+ /* Initialize the local fields. */
+ SET_UNALLOCATED(ret->toc_offset);
+ ret->symbol_is_glue = 0;
+ ret->glue_insn = 0;
+
+ HASH_CHECK_INIT(ret);
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Initialize a PE linker hash table. */
+
+static boolean
+ppc_coff_link_hash_table_init (table, abfd, newfunc)
+ struct ppc_coff_link_hash_table *table;
+ bfd *abfd;
+ struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *));
+{
+ return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc);
+}
+
+/* Create a PE linker hash table. */
+
+static struct bfd_link_hash_table *
+ppc_coff_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct ppc_coff_link_hash_table *ret;
+
+ ret = ((struct ppc_coff_link_hash_table *)
+ bfd_alloc (abfd, sizeof (struct ppc_coff_link_hash_table)));
+ if (ret == NULL)
+ return NULL;
+ if (! ppc_coff_link_hash_table_init (ret, abfd,
+ ppc_coff_link_hash_newfunc))
+ {
+ bfd_release (abfd, ret);
+ return (struct bfd_link_hash_table *) NULL;
+ }
+ return &ret->root.root;
+}
+
+/* Now, tailor coffcode.h to use our hash stuff */
+
+#define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create
+
+\f
+/* The nt loader points the toc register to &toc + 32768, in order to */
+/* use the complete range of a 16-bit displacement. We have to adjust */
+/* for this when we fix up loads displaced off the toc reg. */
+#define TOC_LOAD_ADJUSTMENT (-32768)
+#define TOC_SECTION_NAME ".private.toc"
+
/* The main body of code is in coffcode.h. */
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
#define IMAGE_REL_PPC_REFLO 0x0011
#define IMAGE_REL_PPC_PAIR 0x0012
+/* This is essentially the same as tocrel16, with TOCDEFN assumed */
+#define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013
/* Flag bits in IMAGE_RELOCATION.TYPE */
asection *section,
bfd *output_bfd,
char **error));
+#if 0
static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd,
arelent *reloc,
asymbol *symbol,
asection *section,
bfd *output_bfd,
char **error));
+#endif
static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd,
arelent *reloc,
asymbol *symbol,
bfd *output_bfd,
char **error));
+#if 0
static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd,
arelent *reloc,
asymbol *symbol,
asection *section,
bfd *output_bfd,
char **error));
-
+#endif
static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd,
arelent *reloc,
asymbol *symbol,
+static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto));
\f
/* FIXME: It'll take a while to get through all of these. I only need a few to
0x00, /* src_mask */
0x00, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */
/* Unused: */
HOWTO(IMAGE_REL_PPC_ADDR64, /* type */
- 0, /* rightshift */
- 3, /* size (0 = byte, 1 = short, 2 = long) */
- 64, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- 0, /* special_function */
- "ADDR64", /* name */
- true, /* partial_inplace */
- MINUS_ONE, /* src_mask */
- MINUS_ONE, /* dst_mask */
- false), /* pcrel_offset */
+ 0, /* rightshift */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "ADDR64", /* name */
+ true, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
/* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */
/* Used: */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */
/* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */
- /* Of course, That's the IBM approved bit numbering, which is not what
+ /* Of course, That's the IBM approved bit numbering, which is not what */
/* anyone else uses.... The li field is in bit 2 thru 25 */
/* Used: */
HOWTO (IMAGE_REL_PPC_ADDR24, /* type */
0x07fffffc, /* src_mask */
0x07fffffc, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */
/* Used: */
HOWTO (IMAGE_REL_PPC_ADDR16, /* type */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_ADDR14 0x0005 */
/* 16-bit address, shifted left 2 (load doubleword) */
/* FIXME: the mask is likely wrong, and the bit position may be as well */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_REL24 0x0006 */
/* 26-bit PC-relative offset, shifted left 2 (branch relative) */
/* Used: */
0x3fffffc, /* src_mask */
0x3fffffc, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_REL14 0x0007 */
/* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
/* FIXME: the mask is likely wrong, and the bit position may be as well */
0xffff, /* src_mask */
0xffff, /* dst_mask */
true), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_TOCREL16 0x0008 */
/* 16-bit offset from TOC base */
/* Used: */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
-
+
/* IMAGE_REL_PPC_TOCREL14 0x0009 */
/* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
/* Unused: */
false, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
-
+ false), /* pcrel_offset */
+
/* IMAGE_REL_PPC_ADDR32NB 0x000A */
/* 32-bit addr w/ image base */
/* Unused: */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- ppc_addr32nb_reloc, /* special_function */
+ 0, /* special_function */
"ADDR32NB", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
-
+ false), /* pcrel_offset */
+
/* IMAGE_REL_PPC_SECREL 0x000B */
/* va of containing section (as in an image sectionhdr) */
/* Unused: */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ false), /* pcrel_offset */
/* IMAGE_REL_PPC_IMGLUE 0x000E */
/* symbol is glue code; virtual address is TOC restore instruction */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false) /* pcrel_offset */
+ false), /* pcrel_offset */
+
+ /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */
+ /* 16-bit offset from TOC base, without causing a definition */
+ /* Used: */
+ HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "TOCREL16, TOCDEFN", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
};
-/* Provided the symbol, returns the value reffed */
-static long get_symbol_value PARAMS ((asymbol *));
+\f
-static long
-get_symbol_value (symbol)
- asymbol *symbol;
-{
- long relocation = 0;
+/* Some really cheezy macros that can be turned on to test stderr :-) */
- if (bfd_is_com_section (symbol->section))
- {
- relocation = 0;
- }
- else
- {
- relocation = symbol->value +
- symbol->section->output_section->vma +
- symbol->section->output_offset;
- }
-
- return(relocation);
+#ifdef DEBUG_RELOC
+#define UN_IMPL(x) \
+{ \
+ static int i; \
+ if (i == 0) \
+ { \
+ i = 1; \
+ fprintf(stderr,"Unimplemented Relocation -- %s\n",x); \
+ } \
+}
+
+#define DUMP_RELOC(n,r) \
+{ \
+ fprintf(stderr,"%s sym %d, addr %d, addend %d\n", \
+ n, (*(r->sym_ptr_ptr))->name, \
+ r->address, r->addend); \
+}
+
+/* Given a reloc name, n, and a pointer to an internal_reloc,
+ dump out interesting information on the contents
+
+#define n_name _n._n_name
+#define n_zeroes _n._n_n._n_zeroes
+#define n_offset _n._n_n._n_offset
+
+*/
+
+#define DUMP_RELOC2(n,r) \
+{ \
+ fprintf(stderr,"%s sym %d, r_vaddr %d %s\n", \
+ n, r->r_symndx, r->r_vaddr,\
+ (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \
+ ?" ":" TOCDEFN" ); \
+}
+
+#else
+#define UN_IMPL(x)
+#define DUMP_RELOC(n,r)
+#define DUMP_RELOC2(n,r)
+#endif
+
+
+\f
+/* toc construction and management routines */
+extern bfd* bfd_of_toc_owner;
+extern long int global_toc_size;
+
+extern long int import_table_size;
+extern long int first_thunk_address;
+extern long int thunk_size;
+
+enum toc_type
+{
+ default_toc,
+ toc_32,
+ toc_64
+};
+
+enum ref_category
+{
+ priv,
+ pub,
+ data
+};
+
+struct list_ele
+{
+ struct list_ele *next;
+ bfd_vma addr;
+ enum ref_category cat;
+ int offset;
+ const char *name;
+};
+
+extern struct list_ele *head;
+extern struct list_ele *tail;
+
+static void
+record_toc(toc_section, our_toc_offset, cat, name)
+ asection *toc_section;
+ int our_toc_offset;
+ enum ref_category cat;
+ const char *name;
+{
+ /* add this entry to our toc addr-offset-name list */
+ struct list_ele *t;
+ t = (struct list_ele *) bfd_malloc (sizeof (struct list_ele));
+ if (t == NULL)
+ abort ();
+ t->next = 0;
+ t->offset = our_toc_offset;
+ t->name = name;
+ t->cat = cat;
+ t->addr = toc_section->output_offset + our_toc_offset;
+
+ if (head == 0)
+ {
+ head = t;
+ tail = t;
+ }
+ else
+ {
+ tail->next = t;
+ tail = t;
+ }
+}
+
+#ifdef COFF_IMAGE_WITH_PE
+
+/* record a toc offset against a symbol */
+static boolean
+ppc_record_toc_entry(abfd, info, sec, sym, toc_kind)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *sec;
+ int sym;
+ enum toc_type toc_kind;
+{
+ struct ppc_coff_link_hash_entry *h;
+ const char *name;
+
+ int *local_syms;
+
+ h = 0;
+
+ h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
+ if (h != 0)
+ {
+ HASH_CHECK(h);
+ }
+
+ if (h == 0)
+ {
+ local_syms = obj_coff_local_toc_table(abfd);
+ if (local_syms == 0)
+ {
+ int i;
+ /* allocate a table */
+ local_syms =
+ (int *) bfd_zalloc (abfd,
+ obj_raw_syment_count(abfd) * sizeof(int));
+ if (local_syms == 0)
+ return false;
+ obj_coff_local_toc_table(abfd) = local_syms;
+ for (i = 0; i < obj_raw_syment_count(abfd); ++i)
+ {
+ SET_UNALLOCATED(local_syms[i]);
+ }
+ }
+
+ if (IS_UNALLOCATED(local_syms[sym]))
+ {
+ local_syms[sym] = global_toc_size;
+ global_toc_size += 4;
+
+ /* The size must fit in a 16bit displacment */
+ if (global_toc_size > 65535)
+ {
+ (*_bfd_error_handler) ("TOC overflow");
+ bfd_set_error (bfd_error_file_too_big);
+ return false;
+ }
+ }
+ }
+ else
+ {
+ name = h->root.root.root.string;
+
+ /* check to see if there's a toc slot allocated. If not, do it
+ here. It will be used in relocate_section */
+ if (IS_UNALLOCATED(h->toc_offset))
+ {
+ h->toc_offset = global_toc_size;
+ global_toc_size += 4;
+
+ /* The size must fit in a 16bit displacment */
+ if (global_toc_size >= 65535)
+ {
+ (*_bfd_error_handler) ("TOC overflow");
+ bfd_set_error (bfd_error_file_too_big);
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+/* record a toc offset against a symbol */
+static void
+ppc_mark_symbol_as_glue(abfd, sym, rel)
+ bfd *abfd;
+ int sym;
+ struct internal_reloc *rel;
+{
+ struct ppc_coff_link_hash_entry *h;
+
+ h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
+
+ HASH_CHECK(h);
+
+ h->symbol_is_glue = 1;
+ h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr);
+
+ return;
}
+#endif /* COFF_IMAGE_WITH_PE */
+\f
+
+/* Return true if this relocation should
+ appear in the output .reloc section. */
+
+static boolean in_reloc_p(abfd, howto)
+ bfd * abfd;
+ reloc_howto_type *howto;
+{
+ return
+ (! howto->pc_relative)
+ && (howto->type != IMAGE_REL_PPC_ADDR32NB)
+ && (howto->type != IMAGE_REL_PPC_TOCREL16)
+ && (howto->type != IMAGE_REL_PPC_IMGLUE)
+ && (howto->type != IMAGE_REL_PPC_IFGLUE)
+ && (howto->type != IMAGE_REL_PPC_SECREL)
+ && (howto->type != IMAGE_REL_PPC_SECTION)
+ && (howto->type != IMAGE_REL_PPC_SECREL16)
+ && (howto->type != IMAGE_REL_PPC_REFHI)
+ && (howto->type != IMAGE_REL_PPC_REFLO)
+ && (howto->type != IMAGE_REL_PPC_PAIR)
+ && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ;
+}
+
+#if 0
+
/* this function is in charge of performing all the ppc PE relocations */
/* Don't yet know if we want to do this this particular way ... (krk) */
-/* (it is not yet enabled) */
+/* FIXME: (it is not yet enabled) */
static bfd_reloc_status_type
pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
- error_message)
+ error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol_in;
static boolean part1_consth_active = false;
static unsigned long part1_consth_value;
- unsigned long insn;
unsigned long sym_value;
- unsigned long unsigned_value;
unsigned short r_type;
- long signed_value;
-
unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
- bfd_byte *hit_data =addr + (bfd_byte *)(data);
r_type = reloc_entry->howto->type;
- if (output_bfd) {
- /* Partial linking - do nothing */
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
-
- }
+ if (output_bfd)
+ {
+ /* Partial linking - do nothing */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
if (symbol_in != NULL
&& bfd_is_und_section (symbol_in->section))
- {
- /* Keep the state machine happy in case we're called again */
- if (r_type == IMAGE_REL_PPC_REFHI)
{
- part1_consth_active = true;
- part1_consth_value = 0;
+ /* Keep the state machine happy in case we're called again */
+ if (r_type == IMAGE_REL_PPC_REFHI)
+ {
+ part1_consth_active = true;
+ part1_consth_value = 0;
+ }
+ return(bfd_reloc_undefined);
}
- return(bfd_reloc_undefined);
- }
-
+
if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR))
- {
- part1_consth_active = false;
- *error_message = (char *) "Missing PAIR";
- return(bfd_reloc_dangerous);
- }
-
-
- sym_value = get_symbol_value(symbol_in);
-
-#if 0
-
- switch (r_type)
- {
- case R_IREL:
- insn = bfd_get_32(abfd, hit_data);
- /* Take the value in the field and sign extend it */
- signed_value = EXTRACT_HWORD(insn);
- signed_value = SIGN_EXTEND_HWORD(signed_value);
- signed_value <<= 2;
- signed_value += sym_value + reloc_entry->addend;
- if (((signed_value + reloc_entry->address) & ~0x3ffff) == 0)
- { /* Absolute jmp/call */
- insn |= (1<<24); /* Make it absolute */
- signed_value += reloc_entry->address;
- /* FIXME: Should we change r_type to R_IABS */
- }
- else
{
- /* Relative jmp/call, so subtract from the value the
- address of the place we're coming from */
- signed_value -= (input_section->output_section->vma
- + input_section->output_offset);
- if (signed_value>0x1ffff || signed_value<-0x20000)
- return(bfd_reloc_overflow);
- }
- signed_value >>= 2;
- insn = INSERT_HWORD(insn, signed_value);
- bfd_put_32(abfd, insn ,hit_data);
- break;
- case R_ILOHALF:
- insn = bfd_get_32(abfd, hit_data);
- unsigned_value = EXTRACT_HWORD(insn);
- unsigned_value += sym_value + reloc_entry->addend;
- insn = INSERT_HWORD(insn, unsigned_value);
- bfd_put_32(abfd, insn, hit_data);
- break;
- case R_IHIHALF:
- insn = bfd_get_32(abfd, hit_data);
- /* consth, part 1
- Just get the symbol value that is referenced */
- part1_consth_active = true;
- part1_consth_value = sym_value + reloc_entry->addend;
- /* Don't modify insn until R_IHCONST */
- break;
- case R_IHCONST:
- insn = bfd_get_32(abfd, hit_data);
- /* consth, part 2
- Now relocate the reference */
- if (part1_consth_active == false) {
- *error_message = (char *) "Missing IHIHALF";
+ part1_consth_active = false;
+ *error_message = (char *) "Missing PAIR";
return(bfd_reloc_dangerous);
}
- /* sym_ptr_ptr = r_symndx, in coff_slurp_reloc_table() */
- unsigned_value = 0; /*EXTRACT_HWORD(insn) << 16;*/
- unsigned_value += reloc_entry->addend; /* r_symndx */
- unsigned_value += part1_consth_value;
- unsigned_value = unsigned_value >> 16;
- insn = INSERT_HWORD(insn, unsigned_value);
- part1_consth_active = false;
- bfd_put_32(abfd, insn, hit_data);
- break;
- case R_BYTE:
- insn = bfd_get_8(abfd, hit_data);
- unsigned_value = insn + sym_value + reloc_entry->addend;
- if (unsigned_value & 0xffffff00) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"byte value too large in module %s\n",
- abfd->filename);
- return(bfd_reloc_overflow);
- }
- bfd_put_8(abfd, unsigned_value, hit_data);
- break;
- case R_HWORD:
- insn = bfd_get_16(abfd, hit_data);
- unsigned_value = insn + sym_value + reloc_entry->addend;
- if (unsigned_value & 0xffff0000) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"hword value too large in module %s\n",
- abfd->filename);
- return(bfd_reloc_overflow);
- }
- bfd_put_16(abfd, insn, hit_data);
- break;
- case R_WORD:
- insn = bfd_get_32(abfd, hit_data);
- insn += sym_value + reloc_entry->addend;
- bfd_put_32(abfd, insn, hit_data);
- break;
- default:
- *error_message = "Unrecognized reloc";
- return (bfd_reloc_dangerous);
- }
-
-#endif
+ sym_value = get_symbol_value(symbol_in);
+
return(bfd_reloc_ok);
}
+#endif /* 0 */
+
/* The reloc processing routine for the optimized COFF linker. */
static boolean
coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, syms, sections)
+ contents, relocs, syms, sections)
bfd *output_bfd;
struct bfd_link_info *info;
bfd *input_bfd;
struct internal_reloc *relend;
boolean hihalf;
bfd_vma hihalf_val;
-
- unsigned short r_type = EXTRACT_TYPE (rel->r_type);
- unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
- unsigned short junk = EXTRACT_JUNK (rel->r_type);
-
-
+ asection *toc_section = 0;
+ bfd_vma relocation;
+ reloc_howto_type *howto = 0;
+
/* If we are performing a relocateable link, we don't need to do a
thing. The caller will take care of adjusting the reloc
addresses and symbol indices. */
-
if (info->relocateable)
return true;
-
+
hihalf = false;
hihalf_val = 0;
for (; rel < relend; rel++)
{
long symndx;
- bfd_byte *loc;
- struct coff_link_hash_entry *h;
+ struct ppc_coff_link_hash_entry *h;
struct internal_syment *sym;
- asection *sec;
bfd_vma val;
- boolean overflow;
- unsigned long insn;
- long signed_value;
- unsigned long unsigned_value;
+
+ asection *sec;
bfd_reloc_status_type rstat;
+ bfd_byte *loc;
+ unsigned short r_type = EXTRACT_TYPE (rel->r_type);
+ unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
+
symndx = rel->r_symndx;
loc = contents + rel->r_vaddr - input_section->vma;
+ /* FIXME: check bounds on r_type */
+ howto = ppc_coff_howto_table + r_type;
+
if (symndx == -1)
- h = NULL;
+ {
+ h = NULL;
+ sym = NULL;
+ }
else
- h = obj_coff_sym_hashes (input_bfd)[symndx];
-
- sym = NULL;
- sec = NULL;
- val = 0;
+ {
+ h = (struct ppc_coff_link_hash_entry *)
+ (obj_coff_sym_hashes (input_bfd)[symndx]);
+ if (h != 0)
+ {
+ HASH_CHECK(h);
+ }
- overflow = false;
+ sym = syms + symndx;
+ }
+ if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0)
+ {
+ /* An IMGLUE reloc must have a name. Something is very wrong. */
+ abort();
+ }
+
+ sec = NULL;
+ val = 0;
+
+ /* FIXME: PAIR unsupported in the following code */
+ if (h == NULL)
+ {
+ if (symndx == -1)
+ sec = bfd_abs_section_ptr;
+ else
+ {
+ sec = sections[symndx];
+ val = (sec->output_section->vma
+ + sec->output_offset
+ + sym->n_value
+ - sec->vma);
+ }
+ }
+ else
+ {
+ HASH_CHECK(h);
+
+ if (h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ {
+ sec = h->root.root.u.def.section;
+ val = (h->root.root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+ else
+ {
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.root.string, input_bfd, input_section,
+ rel->r_vaddr - input_section->vma)))
+ return false;
+ }
+ }
+
+ rstat = bfd_reloc_ok;
+
+ /* Each case must do its own relocation, setting rstat appropriately */
switch (r_type)
{
default:
- fprintf( stderr, "unsupported reloc %s\n",
- ppc_coff_howto_table[r_type].name);
+ (*_bfd_error_handler)
+ ("%s: unsupported relocation type 0x%02x",
+ bfd_get_filename (input_bfd), r_type);
bfd_set_error (bfd_error_bad_value);
return false;
case IMAGE_REL_PPC_TOCREL16:
+ {
+ bfd_vma our_toc_offset;
+ int fixit;
+
+ DUMP_RELOC2(howto->name, rel);
+
+ if (toc_section == 0)
+ {
+ toc_section = bfd_get_section_by_name (bfd_of_toc_owner,
+ TOC_SECTION_NAME);
+
+ if ( toc_section == NULL )
+ {
+ /* There is no toc section. Something is very wrong. */
+ abort();
+ }
+ }
+
+ /*
+ * Amazing bit tricks present. As we may have seen earlier, we
+ * use the 1 bit to tell us whether or not a toc offset has been
+ * allocated. Now that they've all been allocated, we will use
+ * the 1 bit to tell us if we've written this particular toc
+ * entry out.
+ */
+ fixit = false;
+ if (h == 0)
+ { /* it is a file local symbol */
+ int *local_toc_table;
+ const char *name;
+
+ sym = syms + symndx;
+ name = sym->_n._n_name;
+
+ local_toc_table = obj_coff_local_toc_table(input_bfd);
+ our_toc_offset = local_toc_table[symndx];
+
+ if (IS_WRITTEN(our_toc_offset))
+ {
+ /* if it has been written out, it is marked with the
+ 1 bit. Fix up our offset, but do not write it out
+ again.
+ */
+ MAKE_ADDR_AGAIN(our_toc_offset);
+ }
+ else
+ {
+ /* write out the toc entry */
+ record_toc(toc_section,
+ our_toc_offset,
+ priv,
+ strdup(name));
+
+ bfd_put_32(output_bfd,
+ val,
+ toc_section->contents + our_toc_offset);
+
+ MARK_AS_WRITTEN(local_toc_table[symndx]);
+ fixit = true;
+ }
+ }
+ else
+ {
+ const char *name = h->root.root.root.string;
+ our_toc_offset = h->toc_offset;
+
+ if ((r_flags & IMAGE_REL_PPC_TOCDEFN)
+ == IMAGE_REL_PPC_TOCDEFN )
+ {
+ /* This is unbelievable cheese. Some knowledgable asm
+ hacker has decided to use r2 as a base for loading
+ a value. He/She does this by setting the tocdefn bit,
+ and not supplying a toc definition. The behaviour is
+ then to use the difference between the value of the
+ symbol and the actual location of the toc as the toc
+ index.
+
+ In fact, what is usually happening is, because the
+ Import Address Table is mapped immediately following
+ the toc, some trippy library code trying for speed on
+ dll linkage, takes advantage of that and considers
+ the IAT to be part of the toc, thus saving a load.
+ */
+
+ our_toc_offset = val -
+ (toc_section->output_section->vma +
+ toc_section->output_offset);
+
+ /* The size must still fit in a 16bit displacment */
+ if (our_toc_offset >= 65535)
+ {
+ (*_bfd_error_handler)
+ ("%s: Relocation for %s of %x exceeds Toc size limit",
+ bfd_get_filename (input_bfd), name, our_toc_offset);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ record_toc(toc_section, our_toc_offset, pub, strdup(name));
+ }
+ else if (IS_WRITTEN(our_toc_offset))
+ {
+ /* if it has been written out, it is marked with the
+ 1 bit. Fix up our offset, but do not write it out
+ again.
+ */
+ MAKE_ADDR_AGAIN(our_toc_offset);
+ }
+ else
+ {
+ record_toc(toc_section, our_toc_offset, pub, strdup(name));
+
+ /* write out the toc entry */
+ bfd_put_32(output_bfd,
+ val,
+ toc_section->contents + our_toc_offset);
+
+ MARK_AS_WRITTEN(h->toc_offset);
+ /* The tricky part is that this is the address that */
+ /* needs a .reloc entry for it */
+ fixit = true;
+ }
+ }
+
+ if (fixit && info->base_file)
+ {
+ /* So if this is non pcrelative, and is referenced
+ to a section or a common symbol, then it needs a reloc */
+
+ /* relocation to a symbol in a section which
+ isn't absolute - we output the address here
+ to a file */
+
+ bfd_vma addr = toc_section->output_section->vma
+ + toc_section->output_offset + our_toc_offset;
+
+ if (coff_data(output_bfd)->pe)
+ addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
+
+ fwrite (&addr, 1,4, (FILE *) info->base_file);
+ }
+
+
+ /* FIXME: this test is conservative */
+ if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN &&
+ our_toc_offset > toc_section->_raw_size)
+ {
+ (*_bfd_error_handler)
+ ("%s: Relocation exceeds allocated TOC (%x)",
+ bfd_get_filename (input_bfd),
+ toc_section->_raw_size);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ /* Now we know the relocation for this toc reference */
+ relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT;
+ rstat = _bfd_relocate_contents (howto,
+ input_bfd,
+ relocation,
+ loc);
+ }
+ break;
case IMAGE_REL_PPC_IFGLUE:
- case IMAGE_REL_PPC_SECTION:
+ {
+ /* To solve this, we need to know whether or not the symbol */
+ /* appearing on the call instruction is a glue function or not. */
+ /* A glue function must announce itself via a IMGLUE reloc, and */
+ /* the reloc contains the required toc restore instruction */
+
+ bfd_vma x;
+ const char *my_name;
+ DUMP_RELOC2(howto->name, rel);
+
+ if (h != 0)
+ {
+ my_name = h->root.root.root.string;
+ if (h->symbol_is_glue == 1)
+ {
+ x = bfd_get_32(input_bfd, loc);
+ bfd_put_32(input_bfd, h->glue_insn, loc);
+ }
+ }
+ }
+ break;
case IMAGE_REL_PPC_SECREL:
- case IMAGE_REL_PPC_IMGLUE:
+ /* Unimplemented: codeview debugging information */
+ /* For fast access to the header of the section
+ containing the item. */
+ break;
+ case IMAGE_REL_PPC_SECTION:
+ /* Unimplemented: codeview debugging information */
+ /* Is used to indicate that the value should be relative
+ to the beginning of the section that contains the
+ symbol */
+ break;
case IMAGE_REL_PPC_ABSOLUTE:
+ {
+ const char *my_name;
+ if (h == 0)
+ my_name = (syms+symndx)->_n._n_name;
+ else
+ {
+ my_name = h->root.root.root.string;
+ }
+
+ fprintf(stderr,
+ "Warning: unsupported reloc %s <file %s, section %s>\n",
+ howto->name,
+ bfd_get_filename(input_bfd),
+ input_section->name);
+
+ fprintf(stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
+ rel->r_symndx, my_name, (long) rel->r_vaddr,
+ (unsigned long) rel->r_vaddr);
+ }
+ break;
+ case IMAGE_REL_PPC_IMGLUE:
+ {
+ /* There is nothing to do now. This reloc was noted in the first
+ pass over the relocs, and the glue instruction extracted */
+ const char *my_name;
+ if (h->symbol_is_glue == 1)
+ break;
+ my_name = h->root.root.root.string;
+
+ (*_bfd_error_handler)
+ ("%s: Out of order IMGLUE reloc for %s",
+ bfd_get_filename (input_bfd), my_name);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ case IMAGE_REL_PPC_ADDR32NB:
+ {
+ struct coff_link_hash_entry *myh = 0;
+ const char *name = 0;
+ DUMP_RELOC2(howto->name, rel);
+
+ if (strncmp(".idata$2",input_section->name,8) == 0 && first_thunk_address == 0)
+ {
+ /* set magic values */
+ int idata5offset;
+ struct coff_link_hash_entry *myh = 0;
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ "__idata5_magic__",
+ false, false, true);
+ first_thunk_address = myh->root.u.def.value +
+ sec->output_section->vma +
+ sec->output_offset -
+ pe_data(output_bfd)->pe_opthdr.ImageBase;
+
+ idata5offset = myh->root.u.def.value;
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ "__idata6_magic__",
+ false, false, true);
+
+ thunk_size = myh->root.u.def.value - idata5offset;
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ "__idata4_magic__",
+ false, false, true);
+ import_table_size = myh->root.u.def.value;
+ }
+
+ if (h == 0)
+ { /* it is a file local symbol */
+ sym = syms + symndx;
+ name = sym->_n._n_name;
+ }
+ else
+ {
+ char *target = 0;
+
+ name = h->root.root.root.string;
+ if (strcmp(".idata$2", name) == 0)
+ target = "__idata2_magic__";
+ else if (strcmp(".idata$4", name) == 0)
+ target = "__idata4_magic__";
+ else if (strcmp(".idata$5", name) == 0)
+ target = "__idata5_magic__";
+
+ if (target != 0)
+ {
+ myh = 0;
+
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ target,
+ false, false, true);
+ if (myh == 0)
+ {
+ /* Missing magic cookies. Something is very wrong. */
+ abort();
+ }
+
+ val = myh->root.u.def.value +
+ sec->output_section->vma + sec->output_offset;
+ if (first_thunk_address == 0)
+ {
+ int idata5offset;
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ "__idata5_magic__",
+ false, false, true);
+ first_thunk_address = myh->root.u.def.value +
+ sec->output_section->vma +
+ sec->output_offset -
+ pe_data(output_bfd)->pe_opthdr.ImageBase;
+
+ idata5offset = myh->root.u.def.value;
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ "__idata6_magic__",
+ false, false, true);
+
+ thunk_size = myh->root.u.def.value - idata5offset;
+ myh = coff_link_hash_lookup (coff_hash_table (info),
+ "__idata4_magic__",
+ false, false, true);
+ import_table_size = myh->root.u.def.value;
+ }
+ }
+ }
+
+ rstat = _bfd_relocate_contents (howto,
+ input_bfd,
+ val -
+ pe_data(output_bfd)->pe_opthdr.ImageBase,
+ loc);
+ }
break;
- case IMAGE_REL_PPC_ADDR16:
case IMAGE_REL_PPC_REL24:
+ DUMP_RELOC2(howto->name, rel);
+ val -= (input_section->output_section->vma
+ + input_section->output_offset);
+
+ rstat = _bfd_relocate_contents (howto,
+ input_bfd,
+ val,
+ loc);
+ break;
+ case IMAGE_REL_PPC_ADDR16:
case IMAGE_REL_PPC_ADDR24:
case IMAGE_REL_PPC_ADDR32:
- case IMAGE_REL_PPC_ADDR32NB:
- rstat = _bfd_relocate_contents (ppc_coff_howto_table + r_type,
- input_bfd, val, loc);
- if (rstat == bfd_reloc_overflow)
- overflow = true;
- else if (rstat != bfd_reloc_ok)
- abort ();
+ DUMP_RELOC2(howto->name, rel);
+ rstat = _bfd_relocate_contents (howto,
+ input_bfd,
+ val,
+ loc);
break;
}
- if (overflow)
+ if ( info->base_file )
{
- const char *name;
- char buf[SYMNMLEN + 1];
-
- if (symndx == -1)
- name = "*ABS*";
- else if (h != NULL)
- name = h->root.root.string;
- else if (sym == NULL)
- name = "*unknown*";
- else if (sym->_n._n_n._n_zeroes == 0
- && sym->_n._n_n._n_offset != 0)
- name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
- else
+ /* So if this is non pcrelative, and is referenced
+ to a section or a common symbol, then it needs a reloc */
+ if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto))
{
- strncpy (buf, sym->_n._n_name, SYMNMLEN);
- buf[SYMNMLEN] = '\0';
- name = buf;
+ /* relocation to a symbol in a section which
+ isn't absolute - we output the address here
+ to a file */
+ bfd_vma addr = rel->r_vaddr
+ - input_section->vma
+ + input_section->output_offset
+ + input_section->output_section->vma;
+
+ if (coff_data(output_bfd)->pe)
+ {
+ addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
+ }
+ fwrite (&addr, 1,4, (FILE *) info->base_file);
}
+ }
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, ppc_coff_howto_table[r_type].name, (bfd_vma) 0,
- input_bfd, input_section,
- rel->r_vaddr - input_section->vma)))
- return false;
+ switch (rstat)
+ {
+ default:
+ abort ();
+ case bfd_reloc_ok:
+ break;
+ case bfd_reloc_overflow:
+ {
+ const char *name;
+ char buf[SYMNMLEN + 1];
+
+ if (symndx == -1)
+ name = "*ABS*";
+ else if (h != NULL)
+ name = h->root.root.root.string;
+ else if (sym == NULL)
+ name = "*unknown*";
+ else if (sym->_n._n_n._n_zeroes == 0
+ && sym->_n._n_n._n_offset != 0)
+ name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
+ else
+ {
+ strncpy (buf, sym->_n._n_name, SYMNMLEN);
+ buf[SYMNMLEN] = '\0';
+ name = buf;
+ }
+
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, name, howto->name,
+ (bfd_vma) 0, input_bfd,
+ input_section, rel->r_vaddr - input_section->vma)))
+ {
+ return false;
+ }
+ }
}
+
}
return true;
}
-\f
-/* Some really cheezy macros that can be turned on to test stderr :-) */
+#ifdef COFF_IMAGE_WITH_PE
-#ifdef DEBUG_RELOC
-#define UN_IMPL(x) \
-{ \
- static int i; \
- if (i == 0) \
- { \
- i = 1; \
- fprintf(stderr,"Unimplemented Relocation -- %s\n",x); \
- } \
+long int global_toc_size = 4;
+
+bfd* bfd_of_toc_owner = 0;
+
+long int import_table_size;
+long int first_thunk_address;
+long int thunk_size;
+
+struct list_ele *head;
+struct list_ele *tail;
+
+static char *
+h1 = "\n\t\t\tTOC MAPPING\n\n";
+static char *
+h2 = " TOC disassembly Comments Name\n";
+static char *
+h3 = " Offset spelling (if present)\n";
+
+void
+dump_toc(vfile)
+ void *vfile;
+{
+ FILE *file = vfile;
+ struct list_ele *t;
+
+ fprintf(file, h1);
+ fprintf(file, h2);
+ fprintf(file, h3);
+
+ for(t = head; t != 0; t=t->next)
+ {
+ char *cat;
+
+ if (t->cat == priv)
+ cat = "private ";
+ else if (t->cat == pub)
+ cat = "public ";
+ else if (t->cat == data)
+ cat = "data-in-toc ";
+
+ if (t->offset > global_toc_size)
+ {
+ if (t->offset <= global_toc_size + thunk_size)
+ cat = "IAT reference ";
+ else
+ {
+ fprintf(file,
+ "**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n",
+ global_toc_size, global_toc_size, thunk_size, thunk_size);
+ cat = "Out of bounds!";
+ }
+ }
+
+ fprintf(file,
+ " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768);
+ fprintf(file,
+ " %s %s\n",
+ cat, t->name);
+
+ }
+
+ fprintf(file, "\n");
}
-#define DUMP_RELOC(n,r) \
-{ \
- fprintf(stderr,"%s sym %d, addr %d, addend %d\n", \
- n, (*(r->sym_ptr_ptr))->name, \
- r->address, r->addend); \
+boolean
+ppc_allocate_toc_section (info)
+ struct bfd_link_info *info;
+{
+ asection *s;
+ bfd_byte *foo;
+ static char test_char = '1';
+
+ if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */
+ return true;
+
+ if (bfd_of_toc_owner == 0)
+ {
+ /* No toc owner? Something is very wrong. */
+ abort();
+ }
+
+ s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME);
+ if (s == NULL)
+ {
+ /* No toc section? Something is very wrong. */
+ abort();
+ }
+
+ foo = (bfd_byte *) bfd_alloc(bfd_of_toc_owner, global_toc_size);
+ memset(foo, test_char, global_toc_size);
+
+ s->_raw_size = s->_cooked_size = global_toc_size;
+ s->contents = foo;
+
+ return true;
}
-#define DUMP_RELOC2(n,r) \
-{ \
- fprintf(stderr,"%s sym %d, r_vaddr %d\n", \
- n, r->r_symndx, r->r_vaddr); \
+boolean
+ppc_process_before_allocation (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ asection *sec;
+ struct internal_reloc *i, *rel;
+
+ /* here we have a bfd that is to be included on the link. We have a hook
+ to do reloc rummaging, before section sizes are nailed down. */
+
+ _bfd_coff_get_external_symbols(abfd);
+
+ /* rummage around all the relocs and map the toc */
+ sec = abfd->sections;
+
+ if (sec == 0)
+ {
+ return true;
+ }
+
+ for (; sec != 0; sec = sec->next)
+ {
+ if (sec->reloc_count == 0)
+ continue;
+
+ /* load the relocs */
+ /* FIXME: there may be a storage leak here */
+ i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0);
+
+ if (i == 0)
+ abort();
+
+ for (rel=i;rel<i+sec->reloc_count;++rel)
+ {
+ unsigned short r_type = EXTRACT_TYPE (rel->r_type);
+ unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
+ boolean ok = true;
+
+ DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
+
+ switch(r_type)
+ {
+ case IMAGE_REL_PPC_TOCREL16:
+ /* if TOCDEFN is on, ignore as someone else has allocated the
+ toc entry */
+ if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN )
+ ok = ppc_record_toc_entry(abfd, info, sec,
+ rel->r_symndx, default_toc);
+ if (!ok)
+ return false;
+ break;
+ case IMAGE_REL_PPC_IMGLUE:
+ ppc_mark_symbol_as_glue(abfd, rel->r_symndx, rel);
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ return true;
}
-#else
-#define UN_IMPL(x)
-#define DUMP_RELOC(n,r)
-#define DUMP_RELOC2(n,r)
#endif
return bfd_reloc_undefined;
}
+#if 0
+
static bfd_reloc_status_type
ppc_reflo_reloc (abfd,
reloc_entry,
return bfd_reloc_undefined;
}
+#endif
+
static bfd_reloc_status_type
ppc_pair_reloc (abfd,
reloc_entry,
return bfd_reloc_ok;
}
+#if 0
+
/* ADDR32NB : 32 bit address relative to the virtual origin. */
/* (On the alpha, this is always a linker generated thunk)*/
/* (i.e. 32bit addr relative to the image base) */
return bfd_reloc_ok;
}
+#endif
+
static bfd_reloc_status_type
ppc_secrel_reloc (abfd,
reloc_entry,
For now, we just strip this stuff to find the type, and ignore it other
than that.
*/
-
+ reloc_howto_type *howto;
unsigned short r_type = EXTRACT_TYPE (internal->r_type);
unsigned short r_flags = EXTRACT_FLAGS(internal->r_type);
unsigned short junk = EXTRACT_JUNK (internal->r_type);
/* the masking process only slices off the bottom byte for r_type. */
if ( r_type > MAX_RELOC_INDEX )
- {
- fprintf(stderr,
- "ppc_coff_rtype2howto: reloc index %d out of range [%d, %d]\n",
- internal->r_type, 0, MAX_RELOC_INDEX);
- abort();
- }
+ abort();
/* check for absolute crap */
if ( junk != 0 )
- {
- fprintf(stderr,
- "ppc_coff_rtype2howto: reloc index %d contains junk %d\n",
- internal->r_type, junk);
- abort();
- }
-
-#ifdef DEBUG_RELOC
- /* now examine flags */
- if (r_flags != 0)
- {
- fprintf (stderr, "Reloc with flags found!");
- if ( r_flags & IMAGE_REL_PPC_NEG )
- fprintf (stderr, " NEG");
- if ( r_flags & IMAGE_REL_PPC_BRTAKEN )
- fprintf (stderr, " BRTAKEN");
- if ( r_flags & IMAGE_REL_PPC_BRNTAKEN )
- fprintf (stderr, " BRNTAKEN");
- if ( r_flags & IMAGE_REL_PPC_TOCDEFN )
- fprintf (stderr, " TOCDEFN");
- fprintf(stderr, "\n");
- }
-#endif
+ abort();
switch(r_type)
{
case IMAGE_REL_PPC_ADDR16:
case IMAGE_REL_PPC_REL24:
case IMAGE_REL_PPC_ADDR24:
- case IMAGE_REL_PPC_TOCREL16:
case IMAGE_REL_PPC_ADDR32:
case IMAGE_REL_PPC_IFGLUE:
case IMAGE_REL_PPC_ADDR32NB:
case IMAGE_REL_PPC_SECTION:
case IMAGE_REL_PPC_SECREL:
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
+ howto = ppc_coff_howto_table + r_type;
break;
case IMAGE_REL_PPC_IMGLUE:
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
- /* IMGLUE relocs have big numbers in them. Don't know what for yet. */
- internal->r_vaddr = 0; /* make it zero for now */
+ howto = ppc_coff_howto_table + r_type;
+ break;
+ case IMAGE_REL_PPC_TOCREL16:
+ DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
+ if (r_flags & IMAGE_REL_PPC_TOCDEFN)
+ howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
+ else
+ howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
break;
default:
fprintf(stderr,
"Warning: Unsupported reloc %s [%d] used -- it may not work.\n",
ppc_coff_howto_table[r_type].name,
r_type);
+ howto = ppc_coff_howto_table + r_type;
break;
}
-
- relent->howto = ppc_coff_howto_table + r_type;
-
+
+ relent->howto = howto;
+
}
static reloc_howto_type *
/* the masking process only slices off the bottom byte for r_type. */
if ( r_type > MAX_RELOC_INDEX )
- {
- fprintf(stderr,
- "coff_ppc_rtype_to_howto: index %d out of range [%d, %d]\n",
- r_type, 0, MAX_RELOC_INDEX);
- abort();
- }
-
+ abort();
+
/* check for absolute crap */
if ( junk != 0 )
- {
- fprintf(stderr,
- "coff_ppc_rtype_to_howto: reloc index %d contains junk %d\n",
- rel->r_type, junk);
- abort();
- }
-
-#ifdef DEBUG_RELOC
- /* now examine flags */
- if (r_flags != 0)
- {
- fprintf (stderr, "Reloc with flags found!");
- if ( r_flags & IMAGE_REL_PPC_NEG )
- fprintf (stderr, " NEG");
- if ( r_flags & IMAGE_REL_PPC_BRTAKEN )
- fprintf (stderr, " BRTAKEN");
- if ( r_flags & IMAGE_REL_PPC_BRNTAKEN )
- fprintf (stderr, " BRNTAKEN");
- if ( r_flags & IMAGE_REL_PPC_TOCDEFN )
- fprintf (stderr, " TOCDEFN");
- fprintf(stderr, "\n");
- }
-#endif
-
+ abort();
+
switch(r_type)
{
case IMAGE_REL_PPC_ADDR32NB:
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
*addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
+ howto = ppc_coff_howto_table + r_type;
+ break;
+ case IMAGE_REL_PPC_TOCREL16:
+ DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
+ if (r_flags & IMAGE_REL_PPC_TOCDEFN)
+ howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
+ else
+ howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
break;
case IMAGE_REL_PPC_ADDR16:
case IMAGE_REL_PPC_REL24:
case IMAGE_REL_PPC_ADDR24:
- case IMAGE_REL_PPC_TOCREL16:
case IMAGE_REL_PPC_ADDR32:
case IMAGE_REL_PPC_IFGLUE:
case IMAGE_REL_PPC_SECTION:
case IMAGE_REL_PPC_SECREL:
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
+ howto = ppc_coff_howto_table + r_type;
break;
case IMAGE_REL_PPC_IMGLUE:
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
- /* IMGLUE relocs have big numbers in them. Don't know what for yet. */
- rel->r_vaddr = 0; /* make it zero for now */
+ howto = ppc_coff_howto_table + r_type;
break;
default:
fprintf(stderr,
"Warning: Unsupported reloc %s [%d] used -- it may not work.\n",
ppc_coff_howto_table[r_type].name,
r_type);
+ howto = ppc_coff_howto_table + r_type;
break;
}
-
- howto = ppc_coff_howto_table + r_type;
+
return howto;
}
/* a cheesy little macro to make the code a little more readable */
#define HOW2MAP(bfd_rtype,ppc_rtype) \
- case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
+ case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
static reloc_howto_type *ppc_coff_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
+PARAMS ((bfd *, bfd_reloc_code_real_type));
static reloc_howto_type *
ppc_coff_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
-
-#ifdef DEBUG_RELOC
- fprintf(stderr, "ppc_coff_reloc_type_lookup for %s\n",
- bfd_get_reloc_code_name(code));
-#endif
-
switch (code)
{
+ HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE);
HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE);
HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16);
HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24);
HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24);
HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16);
+ HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN);
HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32);
- default: return NULL;
+ HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB);
+ default:
+ return NULL;
}
-
- return NULL;
+ /*NOTREACHED*/
}
#undef HOW2MAP
#define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst)
-/* We use the special COFF backend linker. */
-/* #define coff_relocate_section _bfd_coff_generic_relocate_section */
+#ifndef COFF_IMAGE_WITH_PE
+static void
+ppc_coff_swap_sym_in_hook ();
+#endif
+
+/* We use the special COFF backend linker, with our own special touch. */
+
#define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup
#define coff_rtype_to_howto coff_ppc_rtype_to_howto
#define coff_relocate_section coff_ppc_relocate_section
+#define coff_bfd_final_link ppc_bfd_coff_final_link
+
+#ifndef COFF_IMAGE_WITH_PE
+#define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook
+#endif
#define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;}
#define COFF_PAGE_SIZE 0x1000
+#define POWERPC_LE_PE
+
#include "coffcode.h"
+\f
+
+#ifndef COFF_IMAGE_WITH_PE
+/* FIXME:
+ What we're trying to do here is allocate a toc section (early), and attach
+ it to the last bfd to be processed. This avoids the problem of having a toc
+ written out before all files have been processed. This code allocates
+ a toc section for every file, and records the last one seen. There are
+ at least two problems with this approach:
+ 1. We allocate whole bunches of toc sections that are ignored, but at
+ at least we will not allocate a toc if no .toc is present.
+ 2. It's not clear to me that being the last bfd read necessarily means
+ that you are the last bfd closed.
+ 3. Doing it on a "swap in" hook depends on when the "swap in" is called,
+ and how often, etc. It's not clear to me that there isn't a hole here.
+*/
+
+static void
+ppc_coff_swap_sym_in_hook (abfd, ext1, in1)
+ bfd *abfd;
+ PTR ext1;
+ PTR in1;
+{
+ struct internal_syment *in = (struct internal_syment *)in1;
+
+ if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */
+ return;
+
+ if (strcmp(in->_n._n_name, ".toc") == 0)
+ {
+ flagword flags;
+ register asection *s;
+
+ s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME);
+ if (s != NULL)
+ {
+ return;
+ }
+
+ flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ;
+
+ s = bfd_make_section (abfd, TOC_SECTION_NAME);
+
+ if (s == NULL
+ || !bfd_set_section_flags (abfd, s, flags)
+ || !bfd_set_section_alignment (abfd, s, 2))
+ {
+ /* FIXME: set appropriate bfd error */
+ abort();
+ }
+
+ /* save the bfd for later allocation */
+ bfd_of_toc_owner = abfd;
+ }
+
+ return;
+}
+#endif
+
+boolean
+ppc_bfd_coff_final_link ();
+
+#ifndef COFF_IMAGE_WITH_PE
+
+static boolean
+ppc_do_last(abfd)
+ bfd *abfd;
+{
+ if (abfd == bfd_of_toc_owner)
+ return true;
+ else
+ return false;
+}
+
+static bfd *
+ppc_get_last()
+{
+ return bfd_of_toc_owner;
+}
+
+/* this piece of machinery exists only to guarantee that the bfd that holds
+ the toc section is written last.
+
+ This does depend on bfd_make_section attaching a new section to the
+ end of the section list for the bfd.
+
+ This is otherwise intended to be functionally the same as
+ cofflink.c:_bfd_coff_final_link(). It is specifically different only
+ where the POWERPC_LE_PE macro modifies the code. It is left in as a
+ precise form of comment. krk@cygnus.com
+*/
+#define POWERPC_LE_PE
+
+
+/* Do the final link step. */
+
+boolean
+ppc_bfd_coff_final_link (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ bfd_size_type symesz;
+ struct coff_final_link_info finfo;
+ boolean debug_merge_allocated;
+ asection *o;
+ struct bfd_link_order *p;
+ size_t max_sym_count;
+ size_t max_lineno_count;
+ size_t max_reloc_count;
+ size_t max_output_reloc_count;
+ size_t max_contents_size;
+ file_ptr rel_filepos;
+ unsigned int relsz;
+ file_ptr line_filepos;
+ unsigned int linesz;
+ bfd *sub;
+ bfd_byte *external_relocs = NULL;
+ char strbuf[STRING_SIZE_SIZE];
+
+ symesz = bfd_coff_symesz (abfd);
+
+ finfo.info = info;
+ finfo.output_bfd = abfd;
+ finfo.strtab = NULL;
+ finfo.section_info = NULL;
+ finfo.last_file_index = -1;
+ finfo.last_bf_index = -1;
+ finfo.internal_syms = NULL;
+ finfo.sec_ptrs = NULL;
+ finfo.sym_indices = NULL;
+ finfo.outsyms = NULL;
+ finfo.linenos = NULL;
+ finfo.contents = NULL;
+ finfo.external_relocs = NULL;
+ finfo.internal_relocs = NULL;
+ debug_merge_allocated = false;
+
+ coff_data (abfd)->link_info = info;
+
+ finfo.strtab = _bfd_stringtab_init ();
+ if (finfo.strtab == NULL)
+ goto error_return;
+
+ if (! coff_debug_merge_hash_table_init (&finfo.debug_merge))
+ goto error_return;
+ debug_merge_allocated = true;
+
+ /* Compute the file positions for all the sections. */
+ if (! abfd->output_has_begun)
+ {
+ if (! bfd_coff_compute_section_file_positions (abfd))
+ return false;
+ }
+
+ /* Count the line numbers and relocation entries required for the
+ output file. Set the file positions for the relocs. */
+ rel_filepos = obj_relocbase (abfd);
+ relsz = bfd_coff_relsz (abfd);
+ max_contents_size = 0;
+ max_lineno_count = 0;
+ max_reloc_count = 0;
+
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ o->reloc_count = 0;
+ o->lineno_count = 0;
+ for (p = o->link_order_head; p != NULL; p = p->next)
+ {
+
+ if (p->type == bfd_indirect_link_order)
+ {
+ asection *sec;
+
+ sec = p->u.indirect.section;
+
+ /* Mark all sections which are to be included in the
+ link. This will normally be every section. We need
+ to do this so that we can identify any sections which
+ the linker has decided to not include. */
+ sec->linker_mark = true;
+
+ if (info->strip == strip_none
+ || info->strip == strip_some)
+ o->lineno_count += sec->lineno_count;
+
+ if (info->relocateable)
+ o->reloc_count += sec->reloc_count;
+
+ if (sec->_raw_size > max_contents_size)
+ max_contents_size = sec->_raw_size;
+ if (sec->lineno_count > max_lineno_count)
+ max_lineno_count = sec->lineno_count;
+ if (sec->reloc_count > max_reloc_count)
+ max_reloc_count = sec->reloc_count;
+ }
+ else if (info->relocateable
+ && (p->type == bfd_section_reloc_link_order
+ || p->type == bfd_symbol_reloc_link_order))
+ ++o->reloc_count;
+ }
+ if (o->reloc_count == 0)
+ o->rel_filepos = 0;
+ else
+ {
+ o->flags |= SEC_RELOC;
+ o->rel_filepos = rel_filepos;
+ rel_filepos += o->reloc_count * relsz;
+ }
+ }
+
+ /* If doing a relocateable link, allocate space for the pointers we
+ need to keep. */
+ if (info->relocateable)
+ {
+ unsigned int i;
+
+ /* We use section_count + 1, rather than section_count, because
+ the target_index fields are 1 based. */
+ finfo.section_info =
+ ((struct coff_link_section_info *)
+ bfd_malloc ((abfd->section_count + 1)
+ * sizeof (struct coff_link_section_info)));
+ if (finfo.section_info == NULL)
+ goto error_return;
+ for (i = 0; i <= abfd->section_count; i++)
+ {
+ finfo.section_info[i].relocs = NULL;
+ finfo.section_info[i].rel_hashes = NULL;
+ }
+ }
+
+ /* We now know the size of the relocs, so we can determine the file
+ positions of the line numbers. */
+ line_filepos = rel_filepos;
+ linesz = bfd_coff_linesz (abfd);
+ max_output_reloc_count = 0;
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ if (o->lineno_count == 0)
+ o->line_filepos = 0;
+ else
+ {
+ o->line_filepos = line_filepos;
+ line_filepos += o->lineno_count * linesz;
+ }
+
+ if (o->reloc_count != 0)
+ {
+ /* We don't know the indices of global symbols until we have
+ written out all the local symbols. For each section in
+ the output file, we keep an array of pointers to hash
+ table entries. Each entry in the array corresponds to a
+ reloc. When we find a reloc against a global symbol, we
+ set the corresponding entry in this array so that we can
+ fix up the symbol index after we have written out all the
+ local symbols.
+
+ Because of this problem, we also keep the relocs in
+ memory until the end of the link. This wastes memory,
+ but only when doing a relocateable link, which is not the
+ common case. */
+ BFD_ASSERT (info->relocateable);
+ finfo.section_info[o->target_index].relocs =
+ ((struct internal_reloc *)
+ bfd_malloc (o->reloc_count * sizeof (struct internal_reloc)));
+ finfo.section_info[o->target_index].rel_hashes =
+ ((struct coff_link_hash_entry **)
+ bfd_malloc (o->reloc_count
+ * sizeof (struct coff_link_hash_entry *)));
+ if (finfo.section_info[o->target_index].relocs == NULL
+ || finfo.section_info[o->target_index].rel_hashes == NULL)
+ goto error_return;
+
+ if (o->reloc_count > max_output_reloc_count)
+ max_output_reloc_count = o->reloc_count;
+ }
+
+ /* Reset the reloc and lineno counts, so that we can use them to
+ count the number of entries we have output so far. */
+ o->reloc_count = 0;
+ o->lineno_count = 0;
+ }
+
+ obj_sym_filepos (abfd) = line_filepos;
+
+ /* Figure out the largest number of symbols in an input BFD. Take
+ the opportunity to clear the output_has_begun fields of all the
+ input BFD's. */
+ max_sym_count = 0;
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+ {
+ size_t sz;
+
+ sub->output_has_begun = false;
+ sz = obj_raw_syment_count (sub);
+ if (sz > max_sym_count)
+ max_sym_count = sz;
+ }
+
+ /* Allocate some buffers used while linking. */
+ finfo.internal_syms = ((struct internal_syment *)
+ bfd_malloc (max_sym_count
+ * sizeof (struct internal_syment)));
+ finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count
+ * sizeof (asection *));
+ finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
+ finfo.outsyms = ((bfd_byte *)
+ bfd_malloc ((size_t) ((max_sym_count + 1) * symesz)));
+ finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count
+ * bfd_coff_linesz (abfd));
+ finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
+ finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
+ if (! info->relocateable)
+ finfo.internal_relocs = ((struct internal_reloc *)
+ bfd_malloc (max_reloc_count
+ * sizeof (struct internal_reloc)));
+ if ((finfo.internal_syms == NULL && max_sym_count > 0)
+ || (finfo.sec_ptrs == NULL && max_sym_count > 0)
+ || (finfo.sym_indices == NULL && max_sym_count > 0)
+ || finfo.outsyms == NULL
+ || (finfo.linenos == NULL && max_lineno_count > 0)
+ || (finfo.contents == NULL && max_contents_size > 0)
+ || (finfo.external_relocs == NULL && max_reloc_count > 0)
+ || (! info->relocateable
+ && finfo.internal_relocs == NULL
+ && max_reloc_count > 0))
+ goto error_return;
+
+ /* We now know the position of everything in the file, except that
+ we don't know the size of the symbol table and therefore we don't
+ know where the string table starts. We just build the string
+ table in memory as we go along. We process all the relocations
+ for a single input file at once. */
+ obj_raw_syment_count (abfd) = 0;
+
+ if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
+ {
+ if (! bfd_coff_start_final_link (abfd, info))
+ goto error_return;
+ }
+
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ for (p = o->link_order_head; p != NULL; p = p->next)
+ {
+ if (p->type == bfd_indirect_link_order
+ && (bfd_get_flavour (p->u.indirect.section->owner)
+ == bfd_target_coff_flavour))
+ {
+ sub = p->u.indirect.section->owner;
+#ifdef POWERPC_LE_PE
+ if (! sub->output_has_begun && !ppc_do_last(sub))
+#else
+ if (! sub->output_has_begun)
+#endif
+ {
+ if (! _bfd_coff_link_input_bfd (&finfo, sub))
+ goto error_return;
+ sub->output_has_begun = true;
+ }
+ }
+ else if (p->type == bfd_section_reloc_link_order
+ || p->type == bfd_symbol_reloc_link_order)
+ {
+ if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p))
+ goto error_return;
+ }
+ else
+ {
+ if (! _bfd_default_link_order (abfd, info, o, p))
+ goto error_return;
+ }
+ }
+ }
+
+#ifdef POWERPC_LE_PE
+ {
+ extern bfd* ppc_get_last();
+ bfd* last_one = ppc_get_last();
+ if (last_one)
+ {
+ if (! _bfd_coff_link_input_bfd (&finfo, last_one))
+ goto error_return;
+ }
+ last_one->output_has_begun = true;
+ }
+#endif
+
+ /* Free up the buffers used by _bfd_coff_link_input_bfd. */
+
+ coff_debug_merge_hash_table_free (&finfo.debug_merge);
+ debug_merge_allocated = false;
+
+ if (finfo.internal_syms != NULL)
+ {
+ free (finfo.internal_syms);
+ finfo.internal_syms = NULL;
+ }
+ if (finfo.sec_ptrs != NULL)
+ {
+ free (finfo.sec_ptrs);
+ finfo.sec_ptrs = NULL;
+ }
+ if (finfo.sym_indices != NULL)
+ {
+ free (finfo.sym_indices);
+ finfo.sym_indices = NULL;
+ }
+ if (finfo.linenos != NULL)
+ {
+ free (finfo.linenos);
+ finfo.linenos = NULL;
+ }
+ if (finfo.contents != NULL)
+ {
+ free (finfo.contents);
+ finfo.contents = NULL;
+ }
+ if (finfo.external_relocs != NULL)
+ {
+ free (finfo.external_relocs);
+ finfo.external_relocs = NULL;
+ }
+ if (finfo.internal_relocs != NULL)
+ {
+ free (finfo.internal_relocs);
+ finfo.internal_relocs = NULL;
+ }
+
+ /* The value of the last C_FILE symbol is supposed to be the symbol
+ index of the first external symbol. Write it out again if
+ necessary. */
+ if (finfo.last_file_index != -1
+ && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd))
+ {
+ finfo.last_file.n_value = obj_raw_syment_count (abfd);
+ bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
+ (PTR) finfo.outsyms);
+ if (bfd_seek (abfd,
+ (obj_sym_filepos (abfd)
+ + finfo.last_file_index * symesz),
+ SEEK_SET) != 0
+ || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
+ return false;
+ }
+
+ /* Write out the global symbols. */
+ finfo.failed = false;
+ coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
+ (PTR) &finfo);
+ if (finfo.failed)
+ goto error_return;
+
+ /* The outsyms buffer is used by _bfd_coff_write_global_sym. */
+ if (finfo.outsyms != NULL)
+ {
+ free (finfo.outsyms);
+ finfo.outsyms = NULL;
+ }
+
+ if (info->relocateable)
+ {
+ /* Now that we have written out all the global symbols, we know
+ the symbol indices to use for relocs against them, and we can
+ finally write out the relocs. */
+ external_relocs = ((bfd_byte *)
+ bfd_malloc (max_output_reloc_count * relsz));
+ if (external_relocs == NULL)
+ goto error_return;
+
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ struct internal_reloc *irel;
+ struct internal_reloc *irelend;
+ struct coff_link_hash_entry **rel_hash;
+ bfd_byte *erel;
+
+ if (o->reloc_count == 0)
+ continue;
+
+ irel = finfo.section_info[o->target_index].relocs;
+ irelend = irel + o->reloc_count;
+ rel_hash = finfo.section_info[o->target_index].rel_hashes;
+ erel = external_relocs;
+ for (; irel < irelend; irel++, rel_hash++, erel += relsz)
+ {
+ if (*rel_hash != NULL)
+ {
+ BFD_ASSERT ((*rel_hash)->indx >= 0);
+ irel->r_symndx = (*rel_hash)->indx;
+ }
+ bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
+ }
+
+ if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
+ || bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
+ abfd) != relsz * o->reloc_count)
+ goto error_return;
+ }
+
+ free (external_relocs);
+ external_relocs = NULL;
+ }
+
+ /* Free up the section information. */
+ if (finfo.section_info != NULL)
+ {
+ unsigned int i;
+
+ for (i = 0; i < abfd->section_count; i++)
+ {
+ if (finfo.section_info[i].relocs != NULL)
+ free (finfo.section_info[i].relocs);
+ if (finfo.section_info[i].rel_hashes != NULL)
+ free (finfo.section_info[i].rel_hashes);
+ }
+ free (finfo.section_info);
+ finfo.section_info = NULL;
+ }
+
+ /* If we have optimized stabs strings, output them. */
+ if (coff_hash_table (info)->stab_info != NULL)
+ {
+ if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
+ return false;
+ }
+
+ /* Write out the string table. */
+ if (obj_raw_syment_count (abfd) != 0)
+ {
+ if (bfd_seek (abfd,
+ (obj_sym_filepos (abfd)
+ + obj_raw_syment_count (abfd) * symesz),
+ SEEK_SET) != 0)
+ return false;
+
+#if STRING_SIZE_SIZE == 4
+ bfd_h_put_32 (abfd,
+ _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
+ (bfd_byte *) strbuf);
+#else
+ #error Change bfd_h_put_32
+#endif
+
+ if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE)
+ return false;
+
+ if (! _bfd_stringtab_emit (abfd, finfo.strtab))
+ return false;
+ }
+
+ _bfd_stringtab_free (finfo.strtab);
+
+ /* Setting bfd_get_symcount to 0 will cause write_object_contents to
+ not try to write out the symbols. */
+ bfd_get_symcount (abfd) = 0;
+
+ return true;
+
+ error_return:
+ if (debug_merge_allocated)
+ coff_debug_merge_hash_table_free (&finfo.debug_merge);
+ if (finfo.strtab != NULL)
+ _bfd_stringtab_free (finfo.strtab);
+ if (finfo.section_info != NULL)
+ {
+ unsigned int i;
+
+ for (i = 0; i < abfd->section_count; i++)
+ {
+ if (finfo.section_info[i].relocs != NULL)
+ free (finfo.section_info[i].relocs);
+ if (finfo.section_info[i].rel_hashes != NULL)
+ free (finfo.section_info[i].rel_hashes);
+ }
+ free (finfo.section_info);
+ }
+ if (finfo.internal_syms != NULL)
+ free (finfo.internal_syms);
+ if (finfo.sec_ptrs != NULL)
+ free (finfo.sec_ptrs);
+ if (finfo.sym_indices != NULL)
+ free (finfo.sym_indices);
+ if (finfo.outsyms != NULL)
+ free (finfo.outsyms);
+ if (finfo.linenos != NULL)
+ free (finfo.linenos);
+ if (finfo.contents != NULL)
+ free (finfo.contents);
+ if (finfo.external_relocs != NULL)
+ free (finfo.external_relocs);
+ if (finfo.internal_relocs != NULL)
+ free (finfo.internal_relocs);
+ if (external_relocs != NULL)
+ free (external_relocs);
+ return false;
+}
+#endif
+\f
+
/* The transfer vectors that lead the outside world to all of the above. */
#ifdef TARGET_LITTLE_SYM
{
TARGET_LITTLE_NAME, /* name or coff-arm-little */
bfd_target_coff_flavour,
- false, /* data byte order is little */
- false, /* header byte order is little */
+ BFD_ENDIAN_LITTLE, /* data byte order is little */
+ BFD_ENDIAN_LITTLE, /* header byte order is little */
(HAS_RELOC | EXEC_P | /* FIXME: object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT),
-
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+
+#ifndef COFF_WITH_PE
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+#else
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
+ | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
+#endif
+
0, /* leading char */
'/', /* ar_pad_char */
15, /* ar_max_namelen??? FIXMEmgo */
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_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_object_p, /* bfd_check_format */
bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
{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),
BFD_JUMP_TABLE_COPY (coff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_WRITE (coff),
BFD_JUMP_TABLE_LINK (coff),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
-
+
COFF_SWAP_TABLE,
};
#endif
{
TARGET_BIG_NAME,
bfd_target_coff_flavour,
- true, /* data byte order is big */
- true, /* header byte order is big */
+ BFD_ENDIAN_BIG, /* data byte order is big */
+ BFD_ENDIAN_BIG, /* header byte order is big */
(HAS_RELOC | EXEC_P | /* FIXME: object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT),
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+#ifndef COFF_WITH_PE
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+#else
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
+ | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
+#endif
+
0, /* leading char */
'/', /* ar_pad_char */
15, /* ar_max_namelen??? FIXMEmgo */
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_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_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
};
#endif
-
-
-
-
-
-
-
-
-
projects / deliverable / binutils-gdb.git / blobdiff