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* xtensa-isa.h: Update a comment and whitespace.
bfd ChangeLog
	* xtensa-isa.c (xtensa_opcode_lookup, xtensa_state_lookup,
	xtensa_sysreg_lookup_name, xtensa_interface_lookup,
	xtensa_funcUnit_lookup): Skip bsearch call if count is zero.
	(xtensa_opcode_decode): Rearrange code.
This commit is contained in:
Bob Wilson 2005-03-22 19:31:28 +00:00
parent afe94956ca
commit 1fbc7e7aee
4 changed files with 77 additions and 32 deletions
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9
bfd/ChangeLog
View File

@ -1,3 +1,10 @@
2005-03-22 Bob Wilson <bob.wilson@acm.org>
* xtensa-isa.c (xtensa_opcode_lookup, xtensa_state_lookup,
xtensa_sysreg_lookup_name, xtensa_interface_lookup,
xtensa_funcUnit_lookup): Skip bsearch call if count is zero.
(xtensa_opcode_decode): Rearrange code.
2005-03-22 Nick Clifton <nickc@redhat.com>
* binary.c: Convert to ISO C90 formatting.
@ -5216,7 +5223,7 @@
between include sections when have the same sum but which
nevertheless are still unique.
2004-03-31 Mattias Engdegård <mattias@virtutech.se>
2004-03-31 Mattias Engdegård <mattias@virtutech.se>
* stabs.c (_bfd_link_section_stabs): Do not skip N_EXCL stabs.

81
bfd/xtensa-isa.c
View File

@ -63,6 +63,7 @@ xtensa_isa_error_msg (xtensa_isa isa __attribute__ ((unused)))
} \
} while (0)
/* Instruction buffers. */
@ -406,9 +407,9 @@ xtensa_isa_length_from_chars (xtensa_isa isa, const unsigned char *cp)
int
xtensa_isa_num_pipe_stages (xtensa_isa isa)
{
int num_opcodes, num_uses;
xtensa_opcode opcode;
xtensa_funcUnit_use *use;
int num_opcodes, num_uses;
int i, stage, max_stage = XTENSA_UNDEFINED;
num_opcodes = xtensa_isa_num_opcodes (isa);
@ -653,7 +654,7 @@ xtensa_opcode
xtensa_opcode_lookup (xtensa_isa isa, const char *opname)
{
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
xtensa_lookup_entry entry, *result;
xtensa_lookup_entry entry, *result = 0;
if (!opname || !*opname)
{
@ -662,9 +663,13 @@ xtensa_opcode_lookup (xtensa_isa isa, const char *opname)
return XTENSA_UNDEFINED;
}
entry.key = opname;
result = bsearch (&entry, intisa->opname_lookup_table, intisa->num_opcodes,
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
if (intisa->num_opcodes != 0)
{
entry.key = opname;
result = bsearch (&entry, intisa->opname_lookup_table,
intisa->num_opcodes, sizeof (xtensa_lookup_entry),
xtensa_isa_name_compare);
}
if (!result)
{
@ -691,12 +696,12 @@ xtensa_opcode_decode (xtensa_isa isa, xtensa_format fmt, int slot,
slot_id = intisa->formats[fmt].slot_id[slot];
opc = (intisa->slots[slot_id].opcode_decode_fn) (slotbuf);
if (opc == XTENSA_UNDEFINED)
{
xtisa_errno = xtensa_isa_bad_opcode;
strcpy (xtisa_error_msg, "cannot decode opcode");
}
return opc;
if (opc != XTENSA_UNDEFINED)
return opc;
xtisa_errno = xtensa_isa_bad_opcode;
strcpy (xtisa_error_msg, "cannot decode opcode");
return XTENSA_UNDEFINED;
}
@ -1288,6 +1293,7 @@ xtensa_stateOperand_inout (xtensa_isa isa, xtensa_opcode opc, int stOp)
return iclass->stateOperands[stOp].inout;
}
/* Interface Operands. */
@ -1438,6 +1444,7 @@ xtensa_regfile_num_entries (xtensa_isa isa, xtensa_regfile rf)
return intisa->regfiles[rf].num_entries;
}
/* Processor States. */
@ -1457,7 +1464,7 @@ xtensa_state
xtensa_state_lookup (xtensa_isa isa, const char *name)
{
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
xtensa_lookup_entry entry, *result;
xtensa_lookup_entry entry, *result = 0;
if (!name || !*name)
{
@ -1466,9 +1473,12 @@ xtensa_state_lookup (xtensa_isa isa, const char *name)
return XTENSA_UNDEFINED;
}
entry.key = name;
result = bsearch (&entry, intisa->state_lookup_table, intisa->num_states,
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
if (intisa->num_states != 0)
{
entry.key = name;
result = bsearch (&entry, intisa->state_lookup_table, intisa->num_states,
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
}
if (!result)
{
@ -1509,6 +1519,7 @@ xtensa_state_is_exported (xtensa_isa isa, xtensa_state st)
return 0;
}
/* Sysregs. */
@ -1548,7 +1559,7 @@ xtensa_sysreg
xtensa_sysreg_lookup_name (xtensa_isa isa, const char *name)
{
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
xtensa_lookup_entry entry, *result;
xtensa_lookup_entry entry, *result = 0;
if (!name || !*name)
{
@ -1557,9 +1568,13 @@ xtensa_sysreg_lookup_name (xtensa_isa isa, const char *name)
return XTENSA_UNDEFINED;
}
entry.key = name;
result = bsearch (&entry, intisa->sysreg_lookup_table, intisa->num_sysregs,
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
if (intisa->num_sysregs != 0)
{
entry.key = name;
result = bsearch (&entry, intisa->sysreg_lookup_table,
intisa->num_sysregs, sizeof (xtensa_lookup_entry),
xtensa_isa_name_compare);
}
if (!result)
{
@ -1600,6 +1615,7 @@ xtensa_sysreg_is_user (xtensa_isa isa, xtensa_sysreg sysreg)
return 0;
}
/* Interfaces. */
@ -1619,7 +1635,7 @@ xtensa_interface
xtensa_interface_lookup (xtensa_isa isa, const char *ifname)
{
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
xtensa_lookup_entry entry, *result;
xtensa_lookup_entry entry, *result = 0;
if (!ifname || !*ifname)
{
@ -1628,10 +1644,13 @@ xtensa_interface_lookup (xtensa_isa isa, const char *ifname)
return XTENSA_UNDEFINED;
}
entry.key = ifname;
result = bsearch (&entry, intisa->interface_lookup_table,
intisa->num_interfaces,
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
if (intisa->num_interfaces != 0)
{
entry.key = ifname;
result = bsearch (&entry, intisa->interface_lookup_table,
intisa->num_interfaces, sizeof (xtensa_lookup_entry),
xtensa_isa_name_compare);
}
if (!result)
{
@ -1690,6 +1709,7 @@ xtensa_interface_class_id (xtensa_isa isa, xtensa_interface intf)
return intisa->interfaces[intf].class_id;
}
/* Functional Units. */
@ -1709,7 +1729,7 @@ xtensa_funcUnit
xtensa_funcUnit_lookup (xtensa_isa isa, const char *fname)
{
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
xtensa_lookup_entry entry, *result;
xtensa_lookup_entry entry, *result = 0;
if (!fname || !*fname)
{
@ -1718,10 +1738,13 @@ xtensa_funcUnit_lookup (xtensa_isa isa, const char *fname)
return XTENSA_UNDEFINED;
}
entry.key = fname;
result = bsearch (&entry, intisa->funcUnit_lookup_table,
intisa->num_funcUnits,
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
if (intisa->num_funcUnits != 0)
{
entry.key = fname;
result = bsearch (&entry, intisa->funcUnit_lookup_table,
intisa->num_funcUnits, sizeof (xtensa_lookup_entry),
xtensa_isa_name_compare);
}
if (!result)
{

4
include/ChangeLog
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@ -1,3 +1,7 @@
2005-03-22 Bob Wilson <bob.wilson@acm.org>
* xtensa-isa.h: Update a comment and whitespace.
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* bfdlink.h (bfd_link_info): Add gc_sections.

15
include/xtensa-isa.h
View File

@ -65,7 +65,7 @@ extern "C" {
typedef struct xtensa_isa_opaque { int unused; } *xtensa_isa;
/* Opcodes, formats, regfiles, states, sysregs, ctypes, and protos are
/* Most of the Xtensa ISA entities (e.g., opcodes, regfiles, etc.) are
represented here using sequential integers beginning with 0. The
specific values are only fixed for a particular instantiation of an
xtensa_isa structure, so these values should only be used
@ -168,6 +168,7 @@ xtensa_isa_errno (xtensa_isa isa);
extern char *
xtensa_isa_error_msg (xtensa_isa isa);
/* Instruction buffers. */
@ -215,6 +216,7 @@ extern void
xtensa_insnbuf_from_chars (xtensa_isa isa, xtensa_insnbuf insn,
const unsigned char *cp, int num_chars);
/* ISA information. */
@ -279,6 +281,7 @@ xtensa_isa_num_interfaces (xtensa_isa isa);
extern int
xtensa_isa_num_funcUnits (xtensa_isa isa);
/* Instruction formats. */
@ -342,6 +345,7 @@ extern int
xtensa_format_set_slot (xtensa_isa isa, xtensa_format fmt, int slot,
xtensa_insnbuf insn, const xtensa_insnbuf slotbuf);
/* Opcode information. */
@ -412,7 +416,6 @@ xtensa_opcode_is_call (xtensa_isa isa, xtensa_opcode opc);
extern int
xtensa_opcode_num_operands (xtensa_isa isa, xtensa_opcode opc);
extern int
xtensa_opcode_num_stateOperands (xtensa_isa isa, xtensa_opcode opc);
@ -438,6 +441,7 @@ xtensa_opcode_num_funcUnit_uses (xtensa_isa isa, xtensa_opcode opc);
extern xtensa_funcUnit_use *
xtensa_opcode_funcUnit_use (xtensa_isa isa, xtensa_opcode opc, int u);
/* Operand information. */
@ -572,6 +576,7 @@ extern int
xtensa_operand_undo_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd,
uint32 *valp, uint32 pc);
/* State Operands. */
@ -588,6 +593,7 @@ xtensa_stateOperand_state (xtensa_isa isa, xtensa_opcode opc, int stOp);
extern char
xtensa_stateOperand_inout (xtensa_isa isa, xtensa_opcode opc, int stOp);
/* Interface Operands. */
@ -598,6 +604,7 @@ extern xtensa_interface
xtensa_interfaceOperand_interface (xtensa_isa isa, xtensa_opcode opc,
int ifOp);
/* Register Files. */
@ -651,6 +658,7 @@ xtensa_regfile_num_bits (xtensa_isa isa, xtensa_regfile rf);
extern int
xtensa_regfile_num_entries (xtensa_isa isa, xtensa_regfile rf);
/* Processor States. */
@ -680,6 +688,7 @@ xtensa_state_num_bits (xtensa_isa isa, xtensa_state st);
extern int
xtensa_state_is_exported (xtensa_isa isa, xtensa_state st);
/* Sysregs ("special registers" and "user registers"). */
@ -717,6 +726,7 @@ xtensa_sysreg_number (xtensa_isa isa, xtensa_sysreg sysreg);
extern int
xtensa_sysreg_is_user (xtensa_isa isa, xtensa_sysreg sysreg);
/* Interfaces. */
@ -768,6 +778,7 @@ xtensa_interface_has_side_effect (xtensa_isa isa, xtensa_interface intf);
extern int
xtensa_interface_class_id (xtensa_isa isa, xtensa_interface intf);
/* Functional Units. */