#include "coff/internal.h"
#include "libcoff.h"
+static boolean coff_write_symbol PARAMS ((bfd *, asymbol *,
+ combined_entry_type *,
+ unsigned int *));
+static boolean coff_write_alien_symbol PARAMS ((bfd *, asymbol *,
+ unsigned int *));
+static boolean coff_write_native_symbol PARAMS ((bfd *, coff_symbol_type *,
+ unsigned int *));
+
static asection bfd_debug_section = { "*DEBUG*" };
/* Take a section header read from a coff file (in HOST byte order),
}
}
-#define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx))
+/* We need to keep track of the symbol index so that when we write out
+ the relocs we can get the index for a symbol. This method is a
+ hack. FIXME. */
+
+#define set_index(symbol, idx) ((symbol)->udata = (PTR) (idx))
+
+/* Write a symbol out to a COFF file. */
-static unsigned int
+static boolean
coff_write_symbol (abfd, symbol, native, written)
bfd *abfd;
asymbol *symbol;
combined_entry_type *native;
- unsigned int written;
+ unsigned int *written;
{
- unsigned int numaux = native->u.syment.n_numaux;
- int type = native->u.syment.n_type;
- int class = native->u.syment.n_sclass;
+ unsigned int numaux = native->u.syment.n_numaux;
+ int type = native->u.syment.n_type;
+ int class = native->u.syment.n_sclass;
PTR buf;
bfd_size_type symesz;
- /* @@ bfd_debug_section isn't accessible outside this file, but we know
- that C_FILE symbols belong there. So move them. */
+ /* @@ bfd_debug_section isn't accessible outside this file, but we
+ know that C_FILE symbols belong there. So move them. */
if (native->u.syment.n_sclass == C_FILE)
symbol->section = &bfd_debug_section;
if (symbol->section == &bfd_abs_section)
- {
- native->u.syment.n_scnum = N_ABS;
- }
+ {
+ native->u.syment.n_scnum = N_ABS;
+ }
else if (symbol->section == &bfd_debug_section)
- {
- native->u.syment.n_scnum = N_DEBUG;
- }
+ {
+ native->u.syment.n_scnum = N_DEBUG;
+ }
else if (symbol->section == &bfd_und_section)
- {
- native->u.syment.n_scnum = N_UNDEF;
- }
+ {
+ native->u.syment.n_scnum = N_UNDEF;
+ }
else
- {
- native->u.syment.n_scnum =
- symbol->section->output_section->target_index;
- }
-
+ {
+ native->u.syment.n_scnum =
+ symbol->section->output_section->target_index;
+ }
- coff_fix_symbol_name(abfd, symbol, native);
+ coff_fix_symbol_name (abfd, symbol, native);
symesz = bfd_coff_symesz (abfd);
buf = bfd_alloc (abfd, symesz);
if (!buf)
{
bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
+ return false;
}
- bfd_coff_swap_sym_out(abfd, &native->u.syment, buf);
- bfd_write(buf, 1, symesz, abfd);
+ bfd_coff_swap_sym_out (abfd, &native->u.syment, buf);
+ if (bfd_write (buf, 1, symesz, abfd) != symesz)
+ return false;
bfd_release (abfd, buf);
if (native->u.syment.n_numaux > 0)
if (!buf)
{
bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
+ return false;
}
for (j = 0; j < native->u.syment.n_numaux; j++)
{
- bfd_coff_swap_aux_out(abfd,
- &((native + j + 1)->u.auxent),
- type,
- class,
- j,
- native->u.syment.n_numaux,
- buf);
- bfd_write(buf, 1, auxesz, abfd);
+ bfd_coff_swap_aux_out (abfd,
+ &((native + j + 1)->u.auxent),
+ type,
+ class,
+ j,
+ native->u.syment.n_numaux,
+ buf);
+ if (bfd_write (buf, 1, auxesz, abfd)!= auxesz)
+ return false;
}
bfd_release (abfd, buf);
}
- /*
- Reuse somewhere in the symbol to keep the index
- */
- set_index(symbol, written);
- return written + 1 + numaux;
+
+ /* Store the index for use when we write out the relocs. */
+ set_index (symbol, *written);
+
+ *written += numaux + 1;
+ return true;
}
+/* Write out a symbol to a COFF file that does not come from a COFF
+ file originally. This symbol may have been created by the linker,
+ or we may be linking a non COFF file to a COFF file. */
-static unsigned int
+static boolean
coff_write_alien_symbol (abfd, symbol, written)
bfd *abfd;
asymbol *symbol;
- unsigned int written;
+ unsigned int *written;
{
- /*
- This symbol has been created by the loader, or come from a non
- coff format. It has no native element to inherit, make our
- own
- */
combined_entry_type *native;
combined_entry_type dummy;
+
native = &dummy;
native->u.syment.n_type = T_NULL;
native->u.syment.n_flags = 0;
if (symbol->section == &bfd_und_section)
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
+ {
+ native->u.syment.n_scnum = N_UNDEF;
+ native->u.syment.n_value = symbol->value;
}
else if (bfd_is_com_section (symbol->section))
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
-
- }
-
- else if (symbol->flags & BSF_DEBUGGING) {
- /*
- remove name so it doesn't take up any space
- */
- symbol->name = "";
+ {
+ native->u.syment.n_scnum = N_UNDEF;
+ native->u.syment.n_value = symbol->value;
}
- else {
- native->u.syment.n_scnum = symbol->section->output_section->target_index;
- native->u.syment.n_value = symbol->value +
- symbol->section->output_section->vma +
- symbol->section->output_offset;
- /* Copy the any flags from the the file hdr into the symbol */
+ else if (symbol->flags & BSF_DEBUGGING)
{
- coff_symbol_type *c = coff_symbol_from(abfd, symbol);
- if (c != (coff_symbol_type *)NULL) {
- native->u.syment.n_flags = bfd_asymbol_bfd(&c->symbol)->flags;
- }
+ /* Remove the symbol name so that it does not take up any space.
+ COFF won't know what to do with it anyhow. */
+ symbol->name = "";
}
+ else
+ {
+ native->u.syment.n_scnum =
+ symbol->section->output_section->target_index;
+ native->u.syment.n_value = (symbol->value
+ + symbol->section->output_section->vma
+ + symbol->section->output_offset);
+
+ /* Copy the any flags from the the file header into the symbol.
+ FIXME: Why? */
+ {
+ coff_symbol_type *c = coff_symbol_from (abfd, symbol);
+ if (c != (coff_symbol_type *) NULL)
+ native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags;
+ }
}
- native->u.syment.n_type = 0;
+ native->u.syment.n_type = 0;
if (symbol->flags & BSF_LOCAL)
- native->u.syment.n_sclass = C_STAT;
+ native->u.syment.n_sclass = C_STAT;
else
- native->u.syment.n_sclass = C_EXT;
- native->u.syment.n_numaux = 0;
+ native->u.syment.n_sclass = C_EXT;
+ native->u.syment.n_numaux = 0;
- return coff_write_symbol(abfd, symbol, native, written);
+ return coff_write_symbol (abfd, symbol, native, written);
}
-static unsigned int
+/* Write a native symbol to a COFF file. */
+
+static boolean
coff_write_native_symbol (abfd, symbol, written)
bfd *abfd;
coff_symbol_type *symbol;
- unsigned int written;
+ unsigned int *written;
{
- /*
- Does this symbol have an ascociated line number - if so then
- make it remember this symbol index. Also tag the auxent of
- this symbol to point to the right place in the lineno table
- */
combined_entry_type *native = symbol->native;
+ alent *lineno = symbol->lineno;
- alent *lineno = symbol->lineno;
-
- if (lineno && !symbol->done_lineno) {
- unsigned int count = 0;
- lineno[count].u.offset = written;
- if (native->u.syment.n_numaux) {
- union internal_auxent *a = &((native+1)->u.auxent);
+ /* If this symbol has an associated line number, we must store the
+ symbol index in the line number field. We also tag the auxent to
+ point to the right place in the lineno table. */
+ if (lineno && !symbol->done_lineno)
+ {
+ unsigned int count = 0;
+ lineno[count].u.offset = *written;
+ if (native->u.syment.n_numaux)
+ {
+ union internal_auxent *a = &((native+1)->u.auxent);
- a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
- symbol->symbol.section->output_section->moving_line_filepos;
- }
- /*
- And count and relocate all other linenumbers
- */
+ a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
+ symbol->symbol.section->output_section->moving_line_filepos;
+ }
- count++;
- while (lineno[count].line_number) {
+ /* Count and relocate all other linenumbers. */
+ count++;
+ while (lineno[count].line_number != 0)
+ {
#if 0
-/* 13 april 92. sac
-I've been told this, but still need proof:
-> The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw
-> up the pc-relocations for all the line numbers in COFF code. This bug isn't
-> only specific to A29K implementations, but affects all systems using COFF
-> format binaries. Note that in COFF object files, the line number core offsets
-> output by the assembler are relative to the start of each procedure, not
-> to the start of the .text section. This patch relocates the line numbers
-> relative to the `native->u.syment.n_value' instead of the section virtual
-> address. modular!olson@cs.arizona.edu (Jon Olson)
-*/
- lineno[count].u.offset += native->u.syment.n_value;
-
+ /* 13 april 92. sac
+ I've been told this, but still need proof:
+ > The second bug is also in `bfd/coffcode.h'. This bug
+ > causes the linker to screw up the pc-relocations for
+ > all the line numbers in COFF code. This bug isn't only
+ > specific to A29K implementations, but affects all
+ > systems using COFF format binaries. Note that in COFF
+ > object files, the line number core offsets output by
+ > the assembler are relative to the start of each
+ > procedure, not to the start of the .text section. This
+ > patch relocates the line numbers relative to the
+ > `native->u.syment.n_value' instead of the section
+ > virtual address.
+ > modular!olson@cs.arizona.edu (Jon Olson)
+ */
+ lineno[count].u.offset += native->u.syment.n_value;
#else
- lineno[count].u.offset +=
- symbol->symbol.section->output_section->vma +
- symbol->symbol.section->output_offset;
+ lineno[count].u.offset +=
+ (symbol->symbol.section->output_section->vma
+ + symbol->symbol.section->output_offset);
#endif
- count++;
- }
- symbol->done_lineno = true;
+ count++;
+ }
+ symbol->done_lineno = true;
- symbol->symbol.section->output_section->moving_line_filepos +=
- count * bfd_coff_linesz (abfd);
- }
- return coff_write_symbol(abfd, &( symbol->symbol), native,written);
+ symbol->symbol.section->output_section->moving_line_filepos +=
+ count * bfd_coff_linesz (abfd);
+ }
+
+ return coff_write_symbol (abfd, &(symbol->symbol), native, written);
}
-void
+/* Write out the COFF symbols. */
+
+boolean
coff_write_symbols (abfd)
- bfd *abfd;
+ bfd *abfd;
{
- unsigned int i;
- unsigned int limit = bfd_get_symcount(abfd);
- unsigned int written = 0;
-
- asymbol **p;
+ unsigned int i;
+ unsigned int limit = bfd_get_symcount(abfd);
+ unsigned int written = 0;
+ asymbol **p;
string_size = 0;
debug_string_size = 0;
/* Seek to the right place */
- bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
+ if (bfd_seek (abfd, obj_sym_filepos(abfd), SEEK_SET) != 0)
+ return false;
/* Output all the symbols we have */
written = 0;
for (p = abfd->outsymbols, i = 0; i < limit; i++, p++)
- {
- asymbol *symbol = *p;
- coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol);
-
- if (c_symbol == (coff_symbol_type *) NULL ||
- c_symbol->native == (combined_entry_type *)NULL)
- {
- written = coff_write_alien_symbol(abfd, symbol, written);
- }
- else
- {
- written = coff_write_native_symbol(abfd, c_symbol, written);
- }
+ {
+ asymbol *symbol = *p;
+ coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol);
- }
+ if (c_symbol == (coff_symbol_type *) NULL
+ || c_symbol->native == (combined_entry_type *)NULL)
+ {
+ if (! coff_write_alien_symbol (abfd, symbol, &written))
+ return false;
+ }
+ else
+ {
+ if (! coff_write_native_symbol (abfd, c_symbol, &written))
+ return false;
+ }
+ }
- bfd_get_symcount(abfd) = written;
+ bfd_get_symcount (abfd) = written;
/* Now write out strings */
if (string_size != 0)
{
- unsigned int size = string_size + 4;
+ unsigned int size = string_size + 4;
bfd_byte buffer[4];
- bfd_h_put_32(abfd, size, buffer);
- bfd_write((PTR) buffer, 1, sizeof(buffer), abfd);
+ bfd_h_put_32 (abfd, size, buffer);
+ bfd_write ((PTR) buffer, 1, sizeof (buffer), abfd);
for (p = abfd->outsymbols, i = 0;
i < limit;
i++, p++)
- {
- asymbol *q = *p;
- size_t name_length = strlen(q->name);
- int maxlen;
- coff_symbol_type* c_symbol = coff_symbol_from(abfd, q);
- maxlen = ((c_symbol != NULL && c_symbol->native != NULL) &&
- (c_symbol->native->u.syment.n_sclass == C_FILE)) ?
- FILNMLEN : SYMNMLEN;
-
- if (name_length > maxlen
- && ! bfd_coff_symname_in_debug (abfd,
- &c_symbol->native->u.syment))
- bfd_write((PTR) (q->name), 1, name_length + 1, abfd);
- }
+ {
+ asymbol *q = *p;
+ size_t name_length = strlen (q->name);
+ coff_symbol_type *c_symbol = coff_symbol_from (abfd, q);
+ size_t maxlen;
+
+ /* Figure out whether the symbol name should go in the string
+ table. Symbol names that are short enough are stored
+ directly in the syment structure. File names permit a
+ different, longer, length in the syment structure. On
+ XCOFF, some symbol names are stored in the .debug section
+ rather than in the string table. */
+
+ if (c_symbol == NULL
+ || c_symbol->native == NULL)
+ {
+ /* This is not a COFF symbol, so it certainly is not a
+ file name, nor does it go in the .debug section. */
+ maxlen = SYMNMLEN;
+ }
+ else if (bfd_coff_symname_in_debug (abfd,
+ &c_symbol->native->u.syment))
+ {
+ /* This symbol name is in the XCOFF .debug section.
+ Don't write it into the string table. */
+ maxlen = name_length;
+ }
+ else if (c_symbol->native->u.syment.n_sclass == C_FILE)
+ maxlen = FILNMLEN;
+ else
+ maxlen = SYMNMLEN;
+
+ if (name_length > maxlen)
+ {
+ if (bfd_write ((PTR) (q->name), 1, name_length + 1, abfd)
+ != name_length + 1)
+ return false;
+ }
+ }
}
- else {
- /* We would normally not write anything here, but we'll write
- out 4 so that any stupid coff reader which tries to read
- the string table even when there isn't one won't croak. */
- unsigned int size = 4;
- bfd_byte buffer[4];
-
- bfd_h_put_32 (abfd, size, buffer);
- bfd_write((PTR) buffer, 1, sizeof (buffer), abfd);
- }
+ else
+ {
+ /* We would normally not write anything here, but we'll write
+ out 4 so that any stupid coff reader which tries to read the
+ string table even when there isn't one won't croak. */
+ unsigned int size = 4;
+ bfd_byte buffer[4];
+
+ bfd_h_put_32 (abfd, size, buffer);
+ if (bfd_write ((PTR) buffer, 1, 4, abfd) != 4)
+ return false;
+ }
+ /* Make sure the .debug section was created to be the correct size.
+ We should create it ourselves on the fly, but we don't because
+ BFD won't let us write to any section until we know how large all
+ the sections are. We could still do it by making another pass
+ over the symbols. FIXME. */
BFD_ASSERT (debug_string_size == 0
|| (debug_string_section != (asection *) NULL
&& (BFD_ALIGN (debug_string_size,
1 << debug_string_section->alignment_power)
== bfd_section_size (abfd, debug_string_section))));
+
+ return true;
}
boolean
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