free (alloc);
}
-/* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC
- is TRUE, then always require the symbol to be in the section. This
- returns NULL if there is no suitable symbol. If PLACE is not NULL,
- then *PLACE is set to the index of the symbol in sorted_syms. */
+/* Locate a symbol given a bfd and a section (from INFO->application_data),
+ and a VMA. If INFO->application_data->require_sec is TRUE, then always
+ require the symbol to be in the section. Returns NULL if there is no
+ suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
+ of the symbol in sorted_syms. */
static asymbol *
-find_symbol_for_address (bfd *abfd, asection *sec, bfd_vma vma,
- bfd_boolean require_sec, long *place)
+find_symbol_for_address (bfd_vma vma, struct disassemble_info *info, long *place)
{
/* @@ Would it speed things up to cache the last two symbols returned,
and maybe their address ranges? For many processors, only one memory
long min = 0;
long max = sorted_symcount;
long thisplace;
+ struct objdump_disasm_info * aux = (struct objdump_disasm_info *) info->application_data;
+ bfd * abfd = aux->abfd;
+ asection * sec = aux->sec;
unsigned int opb = bfd_octets_per_byte (abfd);
if (sorted_symcount < 1)
no way to tell what's desired without looking at the relocation
table. */
if (sorted_syms[thisplace]->section != sec
- && (require_sec
+ && (aux->require_sec
|| ((abfd->flags & HAS_RELOC) != 0
&& vma >= bfd_get_section_vma (abfd, sec)
&& vma < (bfd_get_section_vma (abfd, sec)
}
if (sorted_syms[thisplace]->section != sec
- && (require_sec
+ && (aux->require_sec
|| ((abfd->flags & HAS_RELOC) != 0
&& vma >= bfd_get_section_vma (abfd, sec)
&& vma < (bfd_get_section_vma (abfd, sec)
+ bfd_section_size (abfd, sec)))))
- {
- /* There is no suitable symbol. */
- return NULL;
- }
+ /* There is no suitable symbol. */
+ return NULL;
+ }
+
+ /* Give the target a chance to reject the symbol. */
+ while (! info->symbol_is_valid (sorted_syms [thisplace], info))
+ {
+ ++ thisplace;
+ if (thisplace >= sorted_symcount
+ || bfd_asymbol_value (sorted_syms [thisplace]) > vma)
+ return NULL;
}
if (place != NULL)
objdump_print_addr (bfd_vma vma, struct disassemble_info *info,
bfd_boolean skip_zeroes)
{
- struct objdump_disasm_info *aux;
+ struct objdump_disasm_info * aux = (struct objdump_disasm_info *) info->application_data;
asymbol *sym;
if (sorted_symcount < 1)
return;
}
- aux = (struct objdump_disasm_info *) info->application_data;
- sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
- NULL);
+ sym = find_symbol_for_address (vma, info, NULL);
objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
skip_zeroes);
}
static int
objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * info)
{
- struct objdump_disasm_info * aux;
asymbol * sym;
- /* No symbols - do not bother checking. */
- if (sorted_symcount < 1)
- return 0;
-
- aux = (struct objdump_disasm_info *) info->application_data;
- sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
- NULL);
+ sym = find_symbol_for_address (vma, info, NULL);
return (sym != NULL && (bfd_asymbol_value (sym) == vma));
}
bfd_get_section_contents (abfd, section, data, 0, datasize);
paux->sec = section;
+ paux->require_sec = TRUE;
pinfo->buffer = data;
pinfo->buffer_vma = section->vma;
pinfo->buffer_length = datasize;
printf (_("Disassembly of section %s:\n"), section->name);
/* Find the nearest symbol forwards from our current position. */
- sym = find_symbol_for_address (abfd, section, section->vma + addr_offset,
- TRUE, &place);
+ sym = find_symbol_for_address (section->vma + addr_offset, info, &place);
/* Disassemble a block of instructions up to the address associated with
the symbol we have just found. Then print the symbol and find the
or we have reached the end of the address range we are interested in. */
while (addr_offset < stop_offset)
{
+ bfd_vma addr;
asymbol *nextsym;
unsigned long nextstop_offset;
bfd_boolean insns;
- if (sym != NULL
- && bfd_asymbol_value (sym) <= section->vma + addr_offset)
+ addr = section->vma + addr_offset;
+
+ if (sym != NULL && bfd_asymbol_value (sym) <= addr)
{
int x;
for (x = place;
(x < sorted_symcount
- && (bfd_asymbol_value (sorted_syms[x])
- <= section->vma + addr_offset));
+ && (bfd_asymbol_value (sorted_syms[x]) <= addr));
++x)
continue;
- pinfo->symbols = & sorted_syms[place];
+ pinfo->symbols = sorted_syms + place;
pinfo->num_symbols = x - place;
}
else
- pinfo->symbols = NULL;
+ {
+ pinfo->symbols = NULL;
+ pinfo->num_symbols = 0;
+ }
if (! prefix_addresses)
{
pinfo->fprintf_func (pinfo->stream, "\n");
- objdump_print_addr_with_sym (abfd, section, sym,
- section->vma + addr_offset,
+ objdump_print_addr_with_sym (abfd, section, sym, addr,
pinfo, FALSE);
pinfo->fprintf_func (pinfo->stream, ":\n");
}
- if (sym != NULL
- && bfd_asymbol_value (sym) > section->vma + addr_offset)
+ if (sym != NULL && bfd_asymbol_value (sym) > addr)
nextsym = sym;
else if (sym == NULL)
nextsym = NULL;
else
{
+#define is_valid_next_sym(SYM) \
+ ((SYM)->section == section \
+ && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
+ && pinfo->symbol_is_valid (SYM, pinfo))
+
/* Search forward for the next appropriate symbol in
SECTION. Note that all the symbols are sorted
together into one big array, and that some sections
may have overlapping addresses. */
while (place < sorted_symcount
- && (sorted_syms[place]->section != section
- || (bfd_asymbol_value (sorted_syms[place])
- <= bfd_asymbol_value (sym))))
+ && ! is_valid_next_sym (sorted_syms [place]))
++place;
+
if (place >= sorted_symcount)
nextsym = NULL;
else
nextsym = sorted_syms[place];
}
- if (sym != NULL
- && bfd_asymbol_value (sym) > section->vma + addr_offset)
- {
- nextstop_offset = bfd_asymbol_value (sym) - section->vma;
- if (nextstop_offset > stop_offset)
- nextstop_offset = stop_offset;
- }
+ if (sym != NULL && bfd_asymbol_value (sym) > addr)
+ nextstop_offset = bfd_asymbol_value (sym) - section->vma;
else if (nextsym == NULL)
nextstop_offset = stop_offset;
else
- {
- nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
- if (nextstop_offset > stop_offset)
- nextstop_offset = stop_offset;
- }
+ nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
+
+ if (nextstop_offset > stop_offset)
+ nextstop_offset = stop_offset;
/* If a symbol is explicitly marked as being an object
rather than a function, just dump the bytes without
disassembling them. */
if (disassemble_all
|| sym == NULL
- || bfd_asymbol_value (sym) > section->vma + addr_offset
+ || bfd_asymbol_value (sym) > addr
|| ((sym->flags & BSF_OBJECT) == 0
&& (strstr (bfd_asymbol_name (sym), "gnu_compiled")
== NULL)
/* Sort the symbols into section and symbol order. */
qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
- init_disassemble_info (&disasm_info, stdout, fprintf);
+ init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
disasm_info.application_data = (void *) &aux;
aux.abfd = abfd;
instead. */
disasm_info.endian = BFD_ENDIAN_UNKNOWN;
+ /* Allow the target to customize the info structure. */
+ disassemble_init_for_target (& disasm_info);
+
/* Pre-load the dynamic relocs if we are going
to be dumping them along with the disassembly. */
if (dump_dynamic_reloc_info)
int (* symbol_at_address_func)
(bfd_vma addr, struct disassemble_info * info);
+ /* Function called to check if a SYMBOL is can be displayed to the user.
+ This is used by some ports that want to hide special symbols when
+ displaying debugging outout. */
+ bfd_boolean (* symbol_is_valid)
+ (asymbol *, struct disassemble_info * info);
+
/* These are for buffer_read_memory. */
bfd_byte *buffer;
bfd_vma buffer_vma;
the same value in order to get reasonable looking output. */
int bytes_per_line;
- /* the next two variables control the way objdump displays the raw data */
+ /* The next two variables control the way objdump displays the raw data. */
/* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
/* output will look like this:
00: 00000000 00000000
extern void parse_arm_disassembler_option (char *);
extern int get_arm_regname_num_options (void);
extern int set_arm_regname_option (int);
-extern int get_arm_regnames
- (int, const char **, const char **, const char ***);
+extern int get_arm_regnames (int, const char **, const char **, const char ***);
+extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
/* Fetch the disassembler for a given BFD, if that support is available. */
extern disassembler_ftype disassembler (bfd *);
+/* Amend the disassemble_info structure as necessary for the target architecture.
+ Should only be called after initialising the info->arch field. */
+extern void disassemble_init_for_target (struct disassemble_info * info);
+
/* Document any target specific options available from the disassembler. */
extern void disassembler_usage (FILE *);
extern int generic_symbol_at_address
(bfd_vma, struct disassemble_info *);
+/* Also always true. */
+extern bfd_boolean generic_symbol_is_valid
+ (asymbol *, struct disassemble_info *);
+
/* Method to initialize a disassemble_info struct. This should be
called by all applications creating such a struct. */
extern void init_disassemble_info (struct disassemble_info *info, void *stream,
OSDN Git Service
