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https://github.com/darlinghq/darling-gdb.git
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cd1d8c6d89
abs_output_section is what is required. * ldwrite.c (ldwrite): use malloc to allocate the largest space used, and pass that down. * relax.c,relax.h (write_relaxnorel): use the passed malloc area rather than alloca.
190 lines
4.0 KiB
C
190 lines
4.0 KiB
C
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/*
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new age linking
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Tie together all the interseting blocks
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*/
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#include "bfd.h"
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#include "../bfd/seclet.h"
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#include "coff/internal.h"
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#include "sysdep.h"
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#include "ldlang.h"
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#include "ld.h"
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#include "ldwrite.h"
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#include "ldmisc.h"
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#include "ldsym.h"
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#include "ldgram.h"
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#include "relax.h"
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static void
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DEFUN(build_it,(statement),
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lang_statement_union_type *statement)
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{
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switch (statement->header.type) {
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#if 0
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{
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bfd_byte play_area[SHORT_SIZE];
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unsigned int i;
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bfd_putshort(output_bfd, statement->fill_statement.fill, play_area);
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/* Write out all entire shorts */
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for (i = 0;
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i < statement->fill_statement.size - SHORT_SIZE + 1;
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i+= SHORT_SIZE)
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{
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bfd_set_section_contents(output_bfd,
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statement->fill_statement.output_section,
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play_area,
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statement->data_statement.output_offset +i,
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SHORT_SIZE);
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}
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/* Now write any remaining byte */
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if (i < statement->fill_statement.size)
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{
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bfd_set_section_contents(output_bfd,
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statement->fill_statement.output_section,
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play_area,
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statement->data_statement.output_offset +i,
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1);
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}
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abort();
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}
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break;
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#endif
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case lang_data_statement_enum:
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#if 0
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{
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bfd_vma value = statement->data_statement.value;
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bfd_byte play_area[LONG_SIZE];
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unsigned int size = 0;
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switch (statement->data_statement.type) {
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case LONG:
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bfd_put_32(output_bfd, value, play_area);
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size = LONG_SIZE;
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break;
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case SHORT:
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bfd_put_16(output_bfd, value, play_area);
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size = SHORT_SIZE;
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break;
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case BYTE:
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bfd_put_8(output_bfd, value, play_area);
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size = BYTE_SIZE;
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break;
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}
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bfd_set_section_contents(output_bfd,
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statement->data_statement.output_section,
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play_area,
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statement->data_statement.output_vma,
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size);
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}
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#endif
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break;
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case lang_input_section_enum:
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{
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/* Create a new seclet in the output section with this
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attached */
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if (statement->input_section.ifile->just_syms_flag == false)
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{
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asection *i = statement->input_section.section;
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asection *output_section = i->output_section;
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bfd_seclet_type *seclet = bfd_new_seclet(output_section->owner,output_section);
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seclet->type = bfd_indirect_seclet;
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seclet->u.indirect.section = i;
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seclet->u.indirect.symbols = statement->input_section.ifile->asymbols;
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seclet->size = i->_cooked_size;
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seclet->offset = i->output_offset;
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seclet->next = 0;
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}
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}
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break;
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case lang_padding_statement_enum:
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/* Make a new seclet with the right filler */
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{
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/* Create a new seclet in the output section with this
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attached */
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bfd_seclet_type *seclet =
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bfd_new_seclet(statement->padding_statement.output_section->owner,
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statement->padding_statement.output_section);
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seclet->type = bfd_fill_seclet;
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seclet->size = statement->padding_statement.size;
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seclet->offset = statement->padding_statement.output_offset;
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seclet->u.fill.value = statement->padding_statement.fill;
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seclet->next = 0;
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}
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break;
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break;
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default:
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/* All the other ones fall through */
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;
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}
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}
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void
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DEFUN(write_relaxnorel,(output_bfd, data),
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bfd *output_bfd AND
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PTR data)
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{
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/* Tie up all the statements to generate an output bfd structure which
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bfd can mull over */
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lang_for_each_statement(build_it);
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seclet_dump(output_bfd, data);
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}
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/* See if we can change the size of this section by shrinking the
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relocations in it. If this happens, then we'll have to renumber the
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symbols in it, and shift around the data too.
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*/
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boolean
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DEFUN(relax_section,(this_ptr),
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lang_statement_union_type **this_ptr)
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{
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lang_input_section_type *is = &((*this_ptr)->input_section);
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asection *i = is->section;
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if (!(i->owner->flags & BFD_IS_RELAXABLE))
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{
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einfo("%B: not assembled with -linkrelax\n", i->owner);
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}
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return bfd_relax_section(i->owner, i, is->ifile->asymbols);
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}
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