/*
Ensure each stream is a single buffer and
add that single buffer to the set of stream buffers.
By creating a new buffer and copying if necessary.
Free the input set of buffers if we consolidate.
Return -1 on error (malloc failure)
Return DW_DLV_OK on success. Any other return indicates
malloc failed.
*/
int
_dwarf_stream_relocs_to_disk(Dwarf_P_Debug dbg,
Dwarf_Signed * new_sec_count)
{
unsigned long total_size = 0;
Dwarf_Small *data = 0;
int sec_index = 0;
unsigned long i = 0;
Dwarf_Error err = 0;
Dwarf_Error *error = &err;
Dwarf_Signed sec_count = 0;
Dwarf_P_Per_Reloc_Sect p_reloc = &dbg->de_reloc_sect[0];
for (i = 0; i < NUM_DEBUG_SECTIONS; ++i, ++p_reloc) {
unsigned long ct = p_reloc->pr_reloc_total_count;
unsigned len = 0;
struct Dwarf_P_Relocation_Block_s *p_blk = 0;
struct Dwarf_P_Relocation_Block_s *p_blk_last = 0;
Dwarf_P_Per_Reloc_Sect prb = 0;
if (ct == 0) {
continue;
}
prb = &dbg->de_reloc_sect[i];
len = dbg->de_relocation_record_size;
++sec_count;
total_size = ct * len;
sec_index = prb->pr_sect_num_of_reloc_sect;
if (sec_index == 0) {
/* call de_func or de_func_b, getting section number of
reloc sec */
int rel_section_index = 0;
Dwarf_Unsigned name_idx = 0;
int int_name = 0;
int err = 0;
if (dbg->de_func_b) {
rel_section_index =
dbg->de_func_b(_dwarf_rel_section_names[i],
/* size */
dbg->de_relocation_record_size,
/* type */ SHT_REL,
/* flags */ 0,
/* link to symtab, which we cannot
know */ 0,
/* info == link to sec rels apply to
*/
dbg->de_elf_sects[i],
&name_idx, &err);
} else {
rel_section_index =
dbg->de_func(_dwarf_rel_section_names[i],
/* size */
dbg->de_relocation_record_size,
/* type */ SHT_REL,
/* flags */ 0,
/* link to symtab, which we cannot
know */ 0,
/* info == link to sec rels apply to */
dbg->de_elf_sects[i], &int_name, &err);
name_idx = int_name;
}
if (rel_section_index == -1) {
{
_dwarf_p_error(dbg, error, DW_DLE_ELF_SECT_ERR);
return (DW_DLV_ERROR);
}
}
prb->pr_sect_num_of_reloc_sect = rel_section_index;
sec_index = rel_section_index;
}
GET_CHUNK(dbg, sec_index, data, total_size, &err);
p_blk = p_reloc->pr_first_block;
/* following loop executes at least once. Effects the
consolidation to a single block or, if already a single
block, simply copies to the output buffer. And frees the
input block. The new block is in the de_debug_sects list. */
while (p_blk) {
unsigned long len =
p_blk->rb_where_to_add_next - p_blk->rb_data;
memcpy(data, p_blk->rb_data, len);
data += len;
p_blk_last = p_blk;
p_blk = p_blk->rb_next;
_dwarf_p_dealloc(dbg, (Dwarf_Small *) p_blk_last);
}
/* ASSERT: sum of len copied == total_size */
/*
We have copied the input, now drop the pointers to it. For
debugging, leave the other data untouched. */
p_reloc->pr_first_block = 0;
p_reloc->pr_last_block = 0;
}
*new_sec_count = sec_count;
return DW_DLV_OK;
}
/*
Ensure each stream is a single buffer and
add that single buffer to the set of stream buffers.
By creating a new buffer and copying if necessary.
(If > 1 block, reduce to 1 block)
Free the input set of buffers if we consolidate.
We pass back *new_sec_count as zero because we
are not creating normal sections for a .o, but
symbolic relocations, separately counted.
Return -1 on error (malloc failure)
Return DW_DLV_OK on success. Any other return indicates
malloc failed.
*/
int
_dwarf_symbolic_relocs_to_disk(Dwarf_P_Debug dbg,
Dwarf_Signed * new_sec_count)
{
/* unsigned long total_size =0; */
Dwarf_Small *data;
int sec_index;
int res;
unsigned long i;
Dwarf_Error error;
Dwarf_Signed sec_count = 0;
Dwarf_P_Per_Reloc_Sect p_reloc = &dbg->de_reloc_sect[0];
for (i = 0; i < NUM_DEBUG_SECTIONS; ++i, ++p_reloc) {
unsigned long ct = p_reloc->pr_reloc_total_count;
struct Dwarf_P_Relocation_Block_s *p_blk;
struct Dwarf_P_Relocation_Block_s *p_blk_last;
/* int len */
int err;
if (ct == 0) {
continue;
}
/* len = dbg->de_relocation_record_size; */
++sec_count;
/* total_size = ct *len; */
sec_index = p_reloc->pr_sect_num_of_reloc_sect;
if (sec_index == 0) {
/* call de_func or de_func_b, getting section number of
reloc sec */
int rel_section_index;
int int_name;
Dwarf_Unsigned name_idx;
/*
This is a bit of a fake, as we do not really have true
elf sections at all. Just the data such might contain.
But this lets the caller eventually link things
together: without this call we would not know what rel
data goes with what section when we are asked for the
real arrays. */
if (dbg->de_func_b) {
rel_section_index =
dbg->de_func_b(_dwarf_rel_section_names[i],
dbg->de_relocation_record_size,
/* type */ SHT_REL,
/* flags */ 0,
/* link to symtab, which we cannot
know */ SHN_UNDEF,
/* sec rels apply to */
dbg->de_elf_sects[i],
&name_idx, &err);
} else {
rel_section_index =
dbg->de_func(_dwarf_rel_section_names[i],
dbg->de_relocation_record_size,
/* type */ SHT_REL,
/* flags */ 0,
/* link to symtab, which we cannot
know */ SHN_UNDEF,
/* sec rels apply to, in elf, sh_info */
dbg->de_elf_sects[i], &int_name, &err);
name_idx = int_name;
}
if (rel_section_index == -1) {
{
_dwarf_p_error(dbg, &error, DW_DLE_ELF_SECT_ERR);
return (DW_DLV_ERROR);
}
}
p_reloc->pr_sect_num_of_reloc_sect = rel_section_index;
sec_index = rel_section_index;
}
p_blk = p_reloc->pr_first_block;
if (p_reloc->pr_block_count > 1) {
struct Dwarf_P_Relocation_Block_s *new_blk;
/* HACK , not normal interfaces, trashing p_reloc
current contents! */
_dwarf_reset_reloc_sect_info(p_reloc, ct);
/* Creating new single block for all 'ct' entries */
res = _dwarf_pro_pre_alloc_n_reloc_slots(dbg, (int) i, ct);
if (res != DW_DLV_OK) {
return res;
}
new_blk = p_reloc->pr_first_block;
data = (Dwarf_Small *) new_blk->rb_data;
/* The following loop does the consolidation to a
single block and frees the input block(s). */
do {
unsigned long len =
p_blk->rb_where_to_add_next - p_blk->rb_data;
memcpy(data, p_blk->rb_data, len);
data += len;
p_blk_last = p_blk;
p_blk = p_blk->rb_next;
_dwarf_p_dealloc(dbg, (Dwarf_Small *) p_blk_last);
} while (p_blk) ;
/* ASSERT: sum of len copied == total_size */
new_blk->rb_next_slot_to_use = ct;
new_blk->rb_where_to_add_next = (char *) data;
p_reloc->pr_reloc_total_count = ct;
/* have now created a single block, but no change in slots
used (pr_reloc_total_count) */
}
}
*new_sec_count = 0;
return DW_DLV_OK;
}
