* read.h (s_vendor_attribute): Move to...

* config/obj-elf.h (obj_elf_vendor_attribute): ... here.
	* read.c (potable): Remove "gnu_attribute".
	(skip_whitespace, skip_past_char, skip_past_comma): Delete, move
	to config/obj-elf.c.
	(s_vendor_attribute): Delete, move to obj_elf_vendor_attribute
	in config/obj-elf.c.
	(s_gnu_attribute): Delete, move to obj_elf_gnu_attribute in
	config/obj-elf.c.
	* config/obj-elf.c (elf_pseudo_table): Add "gnu_attribute".
	(skip_whitespace, skip_past_char, skip_past_comma): New, moved
	from read.c.
	(obj_elf_vendor_attribute): New, moved from s_vendor_attribute
	in read.c.
	(obj_elf_gnu_attribute): New, moved from s_gnu_attribute in
	read.c.
	* config/tc-arm.c (s_arm_eabi_attribute): Rename
	s_vendor_attribute to obj_elf_vendor_attribute.
	* config/tc-tic6x.c (s_tic6x_c6xabi_attribute): Likewise.
This commit is contained in:
Maciej W. Rozycki 2012-11-09 18:07:10 +00:00
parent de863c7475
commit 0420f52b94
7 changed files with 161 additions and 142 deletions

View File

@ -1,3 +1,25 @@
2012-11-09 Maciej W. Rozycki <macro@codesourcery.com>
* read.h (s_vendor_attribute): Move to...
* config/obj-elf.h (obj_elf_vendor_attribute): ... here.
* read.c (potable): Remove "gnu_attribute".
(skip_whitespace, skip_past_char, skip_past_comma): Delete, move
to config/obj-elf.c.
(s_vendor_attribute): Delete, move to obj_elf_vendor_attribute
in config/obj-elf.c.
(s_gnu_attribute): Delete, move to obj_elf_gnu_attribute in
config/obj-elf.c.
* config/obj-elf.c (elf_pseudo_table): Add "gnu_attribute".
(skip_whitespace, skip_past_char, skip_past_comma): New, moved
from read.c.
(obj_elf_vendor_attribute): New, moved from s_vendor_attribute
in read.c.
(obj_elf_gnu_attribute): New, moved from s_gnu_attribute in
read.c.
* config/tc-arm.c (s_arm_eabi_attribute): Rename
s_vendor_attribute to obj_elf_vendor_attribute.
* config/tc-tic6x.c (s_tic6x_c6xabi_attribute): Likewise.
2012-11-09 Nick Clifton <nickc@redhat.com>
* config/obj-elf.c (obj_elf_change_section): Allow init array

View File

@ -72,6 +72,7 @@ static void obj_elf_visibility (int);
static void obj_elf_symver (int);
static void obj_elf_subsection (int);
static void obj_elf_popsection (int);
static void obj_elf_gnu_attribute (int);
static void obj_elf_tls_common (int);
static void obj_elf_lcomm (int);
static void obj_elf_struct (int);
@ -113,6 +114,9 @@ static const pseudo_typeS elf_pseudo_table[] =
{"vtable_inherit", (void (*) (int)) &obj_elf_vtable_inherit, 0},
{"vtable_entry", (void (*) (int)) &obj_elf_vtable_entry, 0},
/* A GNU extension for object attributes. */
{"gnu_attribute", obj_elf_gnu_attribute, 0},
/* These are used for dwarf. */
{"2byte", cons, 2},
{"4byte", cons, 4},
@ -1437,6 +1441,138 @@ obj_elf_vtable_entry (int ignore ATTRIBUTE_UNUSED)
BFD_RELOC_VTABLE_ENTRY);
}
#define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0)
static inline int
skip_past_char (char ** str, char c)
{
if (**str == c)
{
(*str)++;
return 0;
}
else
return -1;
}
#define skip_past_comma(str) skip_past_char (str, ',')
/* Parse an attribute directive for VENDOR.
Returns the attribute number read, or zero on error. */
int
obj_elf_vendor_attribute (int vendor)
{
expressionS exp;
int type;
int tag;
unsigned int i = 0;
char *s = NULL;
/* Read the first number or name. */
skip_whitespace (input_line_pointer);
s = input_line_pointer;
if (ISDIGIT (*input_line_pointer))
{
expression (& exp);
if (exp.X_op != O_constant)
goto bad;
tag = exp.X_add_number;
}
else
{
char *name;
/* A name may contain '_', but no other punctuation. */
for (; ISALNUM (*input_line_pointer) || *input_line_pointer == '_';
++input_line_pointer)
i++;
if (i == 0)
goto bad;
name = (char *) alloca (i + 1);
memcpy (name, s, i);
name[i] = '\0';
#ifndef CONVERT_SYMBOLIC_ATTRIBUTE
#define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1
#endif
tag = CONVERT_SYMBOLIC_ATTRIBUTE (name);
if (tag == -1)
{
as_bad (_("Attribute name not recognised: %s"), name);
ignore_rest_of_line ();
return 0;
}
}
type = _bfd_elf_obj_attrs_arg_type (stdoutput, vendor, tag);
if (skip_past_comma (&input_line_pointer) == -1)
goto bad;
if (type & 1)
{
expression (& exp);
if (exp.X_op != O_constant)
{
as_bad (_("expected numeric constant"));
ignore_rest_of_line ();
return 0;
}
i = exp.X_add_number;
}
if ((type & 3) == 3
&& skip_past_comma (&input_line_pointer) == -1)
{
as_bad (_("expected comma"));
ignore_rest_of_line ();
return 0;
}
if (type & 2)
{
int len;
skip_whitespace (input_line_pointer);
if (*input_line_pointer != '"')
goto bad_string;
s = demand_copy_C_string (&len);
}
switch (type & 3)
{
case 3:
bfd_elf_add_obj_attr_int_string (stdoutput, vendor, tag, i, s);
break;
case 2:
bfd_elf_add_obj_attr_string (stdoutput, vendor, tag, s);
break;
case 1:
bfd_elf_add_obj_attr_int (stdoutput, vendor, tag, i);
break;
default:
abort ();
}
demand_empty_rest_of_line ();
return tag;
bad_string:
as_bad (_("bad string constant"));
ignore_rest_of_line ();
return 0;
bad:
as_bad (_("expected <tag> , <value>"));
ignore_rest_of_line ();
return 0;
}
/* Parse a .gnu_attribute directive. */
static void
obj_elf_gnu_attribute (int ignored ATTRIBUTE_UNUSED)
{
obj_elf_vendor_attribute (OBJ_ATTR_GNU);
}
void
elf_obj_read_begin_hook (void)
{

View File

@ -167,6 +167,7 @@ extern void obj_elf_change_section
(const char *, int, bfd_vma, int, const char *, int, int);
extern struct fix *obj_elf_vtable_inherit (int);
extern struct fix *obj_elf_vtable_entry (int);
extern int obj_elf_vendor_attribute (int);
/* BFD wants to write the udata field, which is a no-no for the
predefined section symbols in bfd/section.c. They are read-only. */

View File

@ -4336,7 +4336,7 @@ s_arm_unwind_raw (int ignored ATTRIBUTE_UNUSED)
static void
s_arm_eabi_attribute (int ignored ATTRIBUTE_UNUSED)
{
int tag = s_vendor_attribute (OBJ_ATTR_PROC);
int tag = obj_elf_vendor_attribute (OBJ_ATTR_PROC);
if (tag < NUM_KNOWN_OBJ_ATTRIBUTES)
attributes_set_explicitly[tag] = 1;

View File

@ -693,7 +693,7 @@ static bfd_boolean tic6x_attributes_set_explicitly[NUM_KNOWN_OBJ_ATTRIBUTES];
static void
s_tic6x_c6xabi_attribute (int ignored ATTRIBUTE_UNUSED)
{
int tag = s_vendor_attribute (OBJ_ATTR_PROC);
int tag = obj_elf_vendor_attribute (OBJ_ATTR_PROC);
if (tag < NUM_KNOWN_OBJ_ATTRIBUTES)
tic6x_attributes_set_explicitly[tag] = TRUE;

View File

@ -244,9 +244,6 @@ static void do_align (int, char *, int, int);
static void s_align (int, int);
static void s_altmacro (int);
static void s_bad_end (int);
#ifdef OBJ_ELF
static void s_gnu_attribute (int);
#endif
static void s_reloc (int);
static int hex_float (int, char *);
static segT get_known_segmented_expression (expressionS * expP);
@ -378,9 +375,6 @@ static const pseudo_typeS potable[] = {
{"func", s_func, 0},
{"global", s_globl, 0},
{"globl", s_globl, 0},
#ifdef OBJ_ELF
{"gnu_attribute", s_gnu_attribute, 0},
#endif
{"hword", cons, 2},
{"if", s_if, (int) O_ne},
{"ifb", s_ifb, 1},
@ -2292,139 +2286,6 @@ s_globl (int ignore ATTRIBUTE_UNUSED)
mri_comment_end (stop, stopc);
}
#ifdef OBJ_ELF
#define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0)
static inline int
skip_past_char (char ** str, char c)
{
if (**str == c)
{
(*str)++;
return 0;
}
else
return -1;
}
#define skip_past_comma(str) skip_past_char (str, ',')
/* Parse an attribute directive for VENDOR.
Returns the attribute number read, or zero on error. */
int
s_vendor_attribute (int vendor)
{
expressionS exp;
int type;
int tag;
unsigned int i = 0;
char *s = NULL;
/* Read the first number or name. */
skip_whitespace (input_line_pointer);
s = input_line_pointer;
if (ISDIGIT (*input_line_pointer))
{
expression (& exp);
if (exp.X_op != O_constant)
goto bad;
tag = exp.X_add_number;
}
else
{
char *name;
/* A name may contain '_', but no other punctuation. */
for (; ISALNUM (*input_line_pointer) || *input_line_pointer == '_';
++input_line_pointer)
i++;
if (i == 0)
goto bad;
name = (char *) alloca (i + 1);
memcpy (name, s, i);
name[i] = '\0';
#ifndef CONVERT_SYMBOLIC_ATTRIBUTE
#define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1
#endif
tag = CONVERT_SYMBOLIC_ATTRIBUTE (name);
if (tag == -1)
{
as_bad (_("Attribute name not recognised: %s"), name);
ignore_rest_of_line ();
return 0;
}
}
type = _bfd_elf_obj_attrs_arg_type (stdoutput, vendor, tag);
if (skip_past_comma (&input_line_pointer) == -1)
goto bad;
if (type & 1)
{
expression (& exp);
if (exp.X_op != O_constant)
{
as_bad (_("expected numeric constant"));
ignore_rest_of_line ();
return 0;
}
i = exp.X_add_number;
}
if ((type & 3) == 3
&& skip_past_comma (&input_line_pointer) == -1)
{
as_bad (_("expected comma"));
ignore_rest_of_line ();
return 0;
}
if (type & 2)
{
int len;
skip_whitespace (input_line_pointer);
if (*input_line_pointer != '"')
goto bad_string;
s = demand_copy_C_string (&len);
}
switch (type & 3)
{
case 3:
bfd_elf_add_obj_attr_int_string (stdoutput, vendor, tag, i, s);
break;
case 2:
bfd_elf_add_obj_attr_string (stdoutput, vendor, tag, s);
break;
case 1:
bfd_elf_add_obj_attr_int (stdoutput, vendor, tag, i);
break;
default:
abort ();
}
demand_empty_rest_of_line ();
return tag;
bad_string:
as_bad (_("bad string constant"));
ignore_rest_of_line ();
return 0;
bad:
as_bad (_("expected <tag> , <value>"));
ignore_rest_of_line ();
return 0;
}
/* Parse a .gnu_attribute directive. */
static void
s_gnu_attribute (int ignored ATTRIBUTE_UNUSED)
{
s_vendor_attribute (OBJ_ATTR_GNU);
}
#endif /* OBJ_ELF */
/* Handle the MRI IRP and IRPC pseudo-ops. */
void

View File

@ -190,5 +190,4 @@ extern void stringer (int append_zero);
extern void s_xstab (int what);
extern void s_rva (int);
extern void s_incbin (int);
extern int s_vendor_attribute (int);
extern void s_weakref (int);