From 64b607e61b2efa2517a6306df3cf3722175fe9ef Mon Sep 17 00:00:00 2001 From: Bob Wilson Date: Mon, 15 May 2006 17:03:15 +0000 Subject: [PATCH] bfd: * elf32-xtensa.c (check_loop_aligned): Fix reversed check for undefined opcode. Clean up assertions. (narrow_instruction, widen_instruction): Remove "do_it" parameters. Factor most of the code into separate functions.... (can_narrow_instruction, can_widen_instruction): New. (prev_instr_is_a_loop): New. (compute_ebb_proposed_actions): Combine error handling code for decode errors. Replace call to insn_decode_len with inline code. Use can_narrow_instruction and can_widen_instruction. Handle errors from call to xtensa_opcode_is_loop. (relax_section): Adjust calls to narrow_instruction and widen_instruction. gas: * config/tc-xtensa.c (is_direct_call_opcode, is_branch_jmp_to_next, xg_assemble_vliw_tokens, xtensa_mark_narrow_branches, xtensa_fix_short_loop_frags, is_local_forward_loop, relax_frag_immed): Handle errors from calls to xtensa_opcode_is_* functions. --- bfd/ChangeLog | 16 ++ bfd/elf32-xtensa.c | 403 ++++++++++++++++++++++++----------------- gas/ChangeLog | 7 + gas/config/tc-xtensa.c | 16 +- 4 files changed, 266 insertions(+), 176 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index d5e2c7904cc..16fb6bab2f4 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,19 @@ +2006-05-15 David Heine + Bob Wilson + + * elf32-xtensa.c (check_loop_aligned): Fix reversed check for + undefined opcode. Clean up assertions. + (narrow_instruction, widen_instruction): Remove "do_it" parameters. + Factor most of the code into separate functions.... + (can_narrow_instruction, can_widen_instruction): New. + (prev_instr_is_a_loop): New. + (compute_ebb_proposed_actions): Combine error handling code for + decode errors. Replace call to insn_decode_len with inline code. + Use can_narrow_instruction and can_widen_instruction. Handle errors + from call to xtensa_opcode_is_loop. + (relax_section): Adjust calls to narrow_instruction and + widen_instruction. + 2006-05-15 Alan Modra PR 2658 diff --git a/bfd/elf32-xtensa.c b/bfd/elf32-xtensa.c index c7f382961c5..542b3a48575 100644 --- a/bfd/elf32-xtensa.c +++ b/bfd/elf32-xtensa.c @@ -3433,24 +3433,23 @@ check_loop_aligned (bfd_byte *contents, bfd_vma address) { bfd_size_type loop_len, insn_len; - xtensa_opcode opcode = - insn_decode_opcode (contents, content_length, offset, 0); - BFD_ASSERT (opcode != XTENSA_UNDEFINED); - if (opcode != XTENSA_UNDEFINED) - return FALSE; - BFD_ASSERT (xtensa_opcode_is_loop (xtensa_default_isa, opcode)); - if (!xtensa_opcode_is_loop (xtensa_default_isa, opcode)) - return FALSE; + xtensa_opcode opcode; + opcode = insn_decode_opcode (contents, content_length, offset, 0); + if (opcode == XTENSA_UNDEFINED + || xtensa_opcode_is_loop (xtensa_default_isa, opcode) != 1) + { + BFD_ASSERT (FALSE); + return FALSE; + } + loop_len = insn_decode_len (contents, content_length, offset); - BFD_ASSERT (loop_len != 0); - if (loop_len == 0) - return FALSE; - insn_len = insn_decode_len (contents, content_length, offset + loop_len); - BFD_ASSERT (insn_len != 0); - if (insn_len == 0) - return FALSE; + if (loop_len == 0 || insn_len == 0) + { + BFD_ASSERT (FALSE); + return FALSE; + } return check_branch_target_aligned_address (address + loop_len, insn_len); } @@ -3562,60 +3561,31 @@ struct string_pair widenable[] = }; -/* Attempt to narrow an instruction. Return true if the narrowing is - valid. If the do_it parameter is non-zero, then perform the action - in-place directly into the contents. Otherwise, do not modify the - contents. The set of valid narrowing are specified by a string table +/* Check if an instruction can be "narrowed", i.e., changed from a standard + 3-byte instruction to a 2-byte "density" instruction. If it is valid, + return the instruction buffer holding the narrow instruction. Otherwise, + return 0. The set of valid narrowing are specified by a string table but require some special case operand checks in some cases. */ -static bfd_boolean -narrow_instruction (bfd_byte *contents, - bfd_size_type content_length, - bfd_size_type offset, - bfd_boolean do_it) +static xtensa_insnbuf +can_narrow_instruction (xtensa_insnbuf slotbuf, + xtensa_format fmt, + xtensa_opcode opcode) { - xtensa_opcode opcode; - bfd_size_type insn_len, opi; xtensa_isa isa = xtensa_default_isa; - xtensa_format fmt, o_fmt; + xtensa_format o_fmt; + unsigned opi; - static xtensa_insnbuf insnbuf = NULL; - static xtensa_insnbuf slotbuf = NULL; static xtensa_insnbuf o_insnbuf = NULL; static xtensa_insnbuf o_slotbuf = NULL; - if (insnbuf == NULL) + if (o_insnbuf == NULL) { - insnbuf = xtensa_insnbuf_alloc (isa); - slotbuf = xtensa_insnbuf_alloc (isa); o_insnbuf = xtensa_insnbuf_alloc (isa); o_slotbuf = xtensa_insnbuf_alloc (isa); } - BFD_ASSERT (offset < content_length); - - if (content_length < 2) - return FALSE; - - /* We will hand-code a few of these for a little while. - These have all been specified in the assembler aleady. */ - xtensa_insnbuf_from_chars (isa, insnbuf, &contents[offset], - content_length - offset); - fmt = xtensa_format_decode (isa, insnbuf); - if (xtensa_format_num_slots (isa, fmt) != 1) - return FALSE; - - if (xtensa_format_get_slot (isa, fmt, 0, insnbuf, slotbuf) != 0) - return FALSE; - - opcode = xtensa_opcode_decode (isa, fmt, 0, slotbuf); - if (opcode == XTENSA_UNDEFINED) - return FALSE; - insn_len = xtensa_format_length (isa, fmt); - if (insn_len > content_length) - return FALSE; - - for (opi = 0; opi < (sizeof (narrowable)/sizeof (struct string_pair)); ++opi) + for (opi = 0; opi < (sizeof (narrowable)/sizeof (struct string_pair)); opi++) { bfd_boolean is_or = (strcmp ("or", narrowable[opi].wide) == 0); @@ -3631,47 +3601,41 @@ narrow_instruction (bfd_byte *contents, o_opcode = xtensa_opcode_lookup (isa, narrowable[opi].narrow); if (o_opcode == XTENSA_UNDEFINED) - return FALSE; + return 0; o_fmt = get_single_format (o_opcode); if (o_fmt == XTENSA_UNDEFINED) - return FALSE; + return 0; if (xtensa_format_length (isa, fmt) != 3 || xtensa_format_length (isa, o_fmt) != 2) - return FALSE; + return 0; xtensa_format_encode (isa, o_fmt, o_insnbuf); operand_count = xtensa_opcode_num_operands (isa, opcode); o_operand_count = xtensa_opcode_num_operands (isa, o_opcode); if (xtensa_opcode_encode (isa, o_fmt, 0, o_slotbuf, o_opcode) != 0) - return FALSE; + return 0; if (!is_or) { if (xtensa_opcode_num_operands (isa, o_opcode) != operand_count) - return FALSE; + return 0; } else { uint32 rawval0, rawval1, rawval2; - if (o_operand_count + 1 != operand_count) - return FALSE; - if (xtensa_operand_get_field (isa, opcode, 0, - fmt, 0, slotbuf, &rawval0) != 0) - return FALSE; - if (xtensa_operand_get_field (isa, opcode, 1, - fmt, 0, slotbuf, &rawval1) != 0) - return FALSE; - if (xtensa_operand_get_field (isa, opcode, 2, - fmt, 0, slotbuf, &rawval2) != 0) - return FALSE; - - if (rawval1 != rawval2) - return FALSE; - if (rawval0 == rawval1) /* it is a nop */ - return FALSE; + if (o_operand_count + 1 != operand_count + || xtensa_operand_get_field (isa, opcode, 0, + fmt, 0, slotbuf, &rawval0) != 0 + || xtensa_operand_get_field (isa, opcode, 1, + fmt, 0, slotbuf, &rawval1) != 0 + || xtensa_operand_get_field (isa, opcode, 2, + fmt, 0, slotbuf, &rawval2) != 0 + || rawval1 != rawval2 + || rawval0 == rawval1 /* it is a nop */) + return 0; } for (i = 0; i < o_operand_count; ++i) @@ -3679,7 +3643,7 @@ narrow_instruction (bfd_byte *contents, if (xtensa_operand_get_field (isa, opcode, i, fmt, 0, slotbuf, &value) || xtensa_operand_decode (isa, opcode, i, &value)) - return FALSE; + return 0; /* PC-relative branches need adjustment, but the PC-rel operand will always have a relocation. */ @@ -3689,52 +3653,41 @@ narrow_instruction (bfd_byte *contents, || xtensa_operand_encode (isa, o_opcode, i, &newval) || xtensa_operand_set_field (isa, o_opcode, i, o_fmt, 0, o_slotbuf, newval)) - return FALSE; + return 0; } - if (xtensa_format_set_slot (isa, o_fmt, 0, - o_insnbuf, o_slotbuf) != 0) - return FALSE; + if (xtensa_format_set_slot (isa, o_fmt, 0, o_insnbuf, o_slotbuf)) + return 0; - if (do_it) - xtensa_insnbuf_to_chars (isa, o_insnbuf, contents + offset, - content_length - offset); - return TRUE; + return o_insnbuf; } } - return FALSE; + return 0; } -/* Attempt to widen an instruction. Return true if the widening is - valid. If the do_it parameter is non-zero, then the action should - be performed inplace into the contents. Otherwise, do not modify - the contents. The set of valid widenings are specified by a string - table but require some special case operand checks in some - cases. */ +/* Attempt to narrow an instruction. If the narrowing is valid, perform + the action in-place directly into the contents and return TRUE. Otherwise, + the return value is FALSE and the contents are not modified. */ static bfd_boolean -widen_instruction (bfd_byte *contents, - bfd_size_type content_length, - bfd_size_type offset, - bfd_boolean do_it) +narrow_instruction (bfd_byte *contents, + bfd_size_type content_length, + bfd_size_type offset) { xtensa_opcode opcode; - bfd_size_type insn_len, opi; + bfd_size_type insn_len; xtensa_isa isa = xtensa_default_isa; - xtensa_format fmt, o_fmt; + xtensa_format fmt; + xtensa_insnbuf o_insnbuf; static xtensa_insnbuf insnbuf = NULL; static xtensa_insnbuf slotbuf = NULL; - static xtensa_insnbuf o_insnbuf = NULL; - static xtensa_insnbuf o_slotbuf = NULL; if (insnbuf == NULL) { insnbuf = xtensa_insnbuf_alloc (isa); slotbuf = xtensa_insnbuf_alloc (isa); - o_insnbuf = xtensa_insnbuf_alloc (isa); - o_slotbuf = xtensa_insnbuf_alloc (isa); } BFD_ASSERT (offset < content_length); @@ -3742,7 +3695,7 @@ widen_instruction (bfd_byte *contents, if (content_length < 2) return FALSE; - /* We will hand code a few of these for a little while. + /* We will hand-code a few of these for a little while. These have all been specified in the assembler aleady. */ xtensa_insnbuf_from_chars (isa, insnbuf, &contents[offset], content_length - offset); @@ -3760,7 +3713,43 @@ widen_instruction (bfd_byte *contents, if (insn_len > content_length) return FALSE; - for (opi = 0; opi < (sizeof (widenable)/sizeof (struct string_pair)); ++opi) + o_insnbuf = can_narrow_instruction (slotbuf, fmt, opcode); + if (o_insnbuf) + { + xtensa_insnbuf_to_chars (isa, o_insnbuf, contents + offset, + content_length - offset); + return TRUE; + } + + return FALSE; +} + + +/* Check if an instruction can be "widened", i.e., changed from a 2-byte + "density" instruction to a standard 3-byte instruction. If it is valid, + return the instruction buffer holding the wide instruction. Otherwise, + return 0. The set of valid widenings are specified by a string table + but require some special case operand checks in some cases. */ + +static xtensa_insnbuf +can_widen_instruction (xtensa_insnbuf slotbuf, + xtensa_format fmt, + xtensa_opcode opcode) +{ + xtensa_isa isa = xtensa_default_isa; + xtensa_format o_fmt; + unsigned opi; + + static xtensa_insnbuf o_insnbuf = NULL; + static xtensa_insnbuf o_slotbuf = NULL; + + if (o_insnbuf == NULL) + { + o_insnbuf = xtensa_insnbuf_alloc (isa); + o_slotbuf = xtensa_insnbuf_alloc (isa); + } + + for (opi = 0; opi < (sizeof (widenable)/sizeof (struct string_pair)); opi++) { bfd_boolean is_or = (strcmp ("or", widenable[opi].wide) == 0); bfd_boolean is_branch = (strcmp ("beqz", widenable[opi].wide) == 0 @@ -3778,14 +3767,14 @@ widen_instruction (bfd_byte *contents, o_opcode = xtensa_opcode_lookup (isa, widenable[opi].wide); if (o_opcode == XTENSA_UNDEFINED) - return FALSE; + return 0; o_fmt = get_single_format (o_opcode); if (o_fmt == XTENSA_UNDEFINED) - return FALSE; + return 0; if (xtensa_format_length (isa, fmt) != 2 || xtensa_format_length (isa, o_fmt) != 3) - return FALSE; + return 0; xtensa_format_encode (isa, o_fmt, o_insnbuf); operand_count = xtensa_opcode_num_operands (isa, opcode); @@ -3793,32 +3782,29 @@ widen_instruction (bfd_byte *contents, check_operand_count = o_operand_count; if (xtensa_opcode_encode (isa, o_fmt, 0, o_slotbuf, o_opcode) != 0) - return FALSE; + return 0; if (!is_or) { if (xtensa_opcode_num_operands (isa, o_opcode) != operand_count) - return FALSE; + return 0; } else { uint32 rawval0, rawval1; - if (o_operand_count != operand_count + 1) - return FALSE; - if (xtensa_operand_get_field (isa, opcode, 0, - fmt, 0, slotbuf, &rawval0) != 0) - return FALSE; - if (xtensa_operand_get_field (isa, opcode, 1, - fmt, 0, slotbuf, &rawval1) != 0) - return FALSE; - if (rawval0 == rawval1) /* it is a nop */ - return FALSE; + if (o_operand_count != operand_count + 1 + || xtensa_operand_get_field (isa, opcode, 0, + fmt, 0, slotbuf, &rawval0) != 0 + || xtensa_operand_get_field (isa, opcode, 1, + fmt, 0, slotbuf, &rawval1) != 0 + || rawval0 == rawval1 /* it is a nop */) + return 0; } if (is_branch) check_operand_count--; - for (i = 0; i < check_operand_count; ++i) + for (i = 0; i < check_operand_count; i++) { int new_i = i; if (is_or && i == o_operand_count - 1) @@ -3826,7 +3812,7 @@ widen_instruction (bfd_byte *contents, if (xtensa_operand_get_field (isa, opcode, new_i, fmt, 0, slotbuf, &value) || xtensa_operand_decode (isa, opcode, new_i, &value)) - return FALSE; + return 0; /* PC-relative branches need adjustment, but the PC-rel operand will always have a relocation. */ @@ -3836,18 +3822,73 @@ widen_instruction (bfd_byte *contents, || xtensa_operand_encode (isa, o_opcode, i, &newval) || xtensa_operand_set_field (isa, o_opcode, i, o_fmt, 0, o_slotbuf, newval)) - return FALSE; + return 0; } if (xtensa_format_set_slot (isa, o_fmt, 0, o_insnbuf, o_slotbuf)) - return FALSE; + return 0; - if (do_it) - xtensa_insnbuf_to_chars (isa, o_insnbuf, contents + offset, - content_length - offset); - return TRUE; + return o_insnbuf; } } + return 0; +} + + +/* Attempt to widen an instruction. If the widening is valid, perform + the action in-place directly into the contents and return TRUE. Otherwise, + the return value is FALSE and the contents are not modified. */ + +static bfd_boolean +widen_instruction (bfd_byte *contents, + bfd_size_type content_length, + bfd_size_type offset) +{ + xtensa_opcode opcode; + bfd_size_type insn_len; + xtensa_isa isa = xtensa_default_isa; + xtensa_format fmt; + xtensa_insnbuf o_insnbuf; + + static xtensa_insnbuf insnbuf = NULL; + static xtensa_insnbuf slotbuf = NULL; + + if (insnbuf == NULL) + { + insnbuf = xtensa_insnbuf_alloc (isa); + slotbuf = xtensa_insnbuf_alloc (isa); + } + + BFD_ASSERT (offset < content_length); + + if (content_length < 2) + return FALSE; + + /* We will hand-code a few of these for a little while. + These have all been specified in the assembler aleady. */ + xtensa_insnbuf_from_chars (isa, insnbuf, &contents[offset], + content_length - offset); + fmt = xtensa_format_decode (isa, insnbuf); + if (xtensa_format_num_slots (isa, fmt) != 1) + return FALSE; + + if (xtensa_format_get_slot (isa, fmt, 0, insnbuf, slotbuf) != 0) + return FALSE; + + opcode = xtensa_opcode_decode (isa, fmt, 0, slotbuf); + if (opcode == XTENSA_UNDEFINED) + return FALSE; + insn_len = xtensa_format_length (isa, fmt); + if (insn_len > content_length) + return FALSE; + + o_insnbuf = can_widen_instruction (slotbuf, fmt, opcode); + if (o_insnbuf) + { + xtensa_insnbuf_to_chars (isa, o_insnbuf, contents + offset, + content_length - offset); + return TRUE; + } return FALSE; } @@ -6495,6 +6536,23 @@ error_return: } +/* Do not widen an instruction if it is preceeded by a + loop opcode. It might cause misalignment. */ + +static bfd_boolean +prev_instr_is_a_loop (bfd_byte *contents, + bfd_size_type content_length, + bfd_size_type offset) +{ + xtensa_opcode prev_opcode; + + if (offset < 3) + return FALSE; + prev_opcode = insn_decode_opcode (contents, content_length, offset-3, 0); + return (xtensa_opcode_is_loop (xtensa_default_isa, prev_opcode) == 1); +} + + /* Find all of the possible actions for an extended basic block. */ bfd_boolean @@ -6503,13 +6561,24 @@ compute_ebb_proposed_actions (ebb_constraint *ebb_table) const ebb_t *ebb = &ebb_table->ebb; unsigned rel_idx = ebb->start_reloc_idx; property_table_entry *entry, *start_entry, *end_entry; + bfd_vma offset = 0; + xtensa_isa isa = xtensa_default_isa; + xtensa_format fmt; + static xtensa_insnbuf insnbuf = NULL; + static xtensa_insnbuf slotbuf = NULL; + + if (insnbuf == NULL) + { + insnbuf = xtensa_insnbuf_alloc (isa); + slotbuf = xtensa_insnbuf_alloc (isa); + } start_entry = &ebb->ptbl[ebb->start_ptbl_idx]; end_entry = &ebb->ptbl[ebb->end_ptbl_idx]; for (entry = start_entry; entry <= end_entry; entry++) { - bfd_vma offset, start_offset, end_offset; + bfd_vma start_offset, end_offset; bfd_size_type insn_len; start_offset = entry->address - ebb->sec->vma; @@ -6531,15 +6600,9 @@ compute_ebb_proposed_actions (ebb_constraint *ebb_table) insn_len = insn_decode_len (ebb->contents, ebb->content_length, offset); - - /* Propose no actions for a section with an undecodable offset. */ if (insn_len == 0) - { - (*_bfd_error_handler) - (_("%B(%A+0x%lx): could not decode instruction; possible configuration mismatch"), - ebb->sec->owner, ebb->sec, offset); - return FALSE; - } + goto decode_error; + if (check_branch_target_aligned_address (offset, insn_len)) align_type = EBB_REQUIRE_TGT_ALIGN; @@ -6570,12 +6633,7 @@ compute_ebb_proposed_actions (ebb_constraint *ebb_table) ebb->content_length, irel->r_offset); if (simplify_size == 0) - { - (*_bfd_error_handler) - (_("%B(%A+0x%lx): could not decode instruction for XTENSA_ASM_SIMPLIFY relocation; possible configuration mismatch"), - ebb->sec->owner, ebb->sec, offset); - return FALSE; - } + goto decode_error; ebb_propose_action (ebb_table, EBB_NO_ALIGN, 0, ta_convert_longcall, offset, 0, TRUE); @@ -6584,47 +6642,50 @@ compute_ebb_proposed_actions (ebb_constraint *ebb_table) continue; } - insn_len = insn_decode_len (ebb->contents, ebb->content_length, - offset); - /* If the instruction is undecodable, then report an error. */ - if (insn_len == 0) + if (offset + MIN_INSN_LENGTH > ebb->content_length) + goto decode_error; + xtensa_insnbuf_from_chars (isa, insnbuf, &ebb->contents[offset], + ebb->content_length - offset); + fmt = xtensa_format_decode (isa, insnbuf); + if (fmt == XTENSA_UNDEFINED) + goto decode_error; + insn_len = xtensa_format_length (isa, fmt); + if (insn_len == (bfd_size_type) XTENSA_UNDEFINED) + goto decode_error; + + if (xtensa_format_num_slots (isa, fmt) != 1) { - (*_bfd_error_handler) - (_("%B(%A+0x%lx): could not decode instruction; possible configuration mismatch"), - ebb->sec->owner, ebb->sec, offset); - return FALSE; + offset += insn_len; + continue; } - + + xtensa_format_get_slot (isa, fmt, 0, insnbuf, slotbuf); + opcode = xtensa_opcode_decode (isa, fmt, 0, slotbuf); + if (opcode == XTENSA_UNDEFINED) + goto decode_error; + if ((entry->flags & XTENSA_PROP_INSN_NO_DENSITY) == 0 && (entry->flags & XTENSA_PROP_INSN_NO_TRANSFORM) == 0 - && narrow_instruction (ebb->contents, ebb->content_length, - offset, FALSE)) + && can_narrow_instruction (slotbuf, fmt, opcode) != 0) { /* Add an instruction narrow action. */ ebb_propose_action (ebb_table, EBB_NO_ALIGN, 0, ta_narrow_insn, offset, 0, FALSE); - offset += insn_len; - continue; } - if ((entry->flags & XTENSA_PROP_INSN_NO_TRANSFORM) == 0 - && widen_instruction (ebb->contents, ebb->content_length, - offset, FALSE)) + else if ((entry->flags & XTENSA_PROP_INSN_NO_TRANSFORM) == 0 + && can_widen_instruction (slotbuf, fmt, opcode) != 0 + && ! prev_instr_is_a_loop (ebb->contents, + ebb->content_length, offset)) { /* Add an instruction widen action. */ ebb_propose_action (ebb_table, EBB_NO_ALIGN, 0, ta_widen_insn, offset, 0, FALSE); - offset += insn_len; - continue; } - opcode = insn_decode_opcode (ebb->contents, ebb->content_length, - offset, 0); - if (xtensa_opcode_is_loop (xtensa_default_isa, opcode)) + else if (xtensa_opcode_is_loop (xtensa_default_isa, opcode) == 1) { /* Check for branch targets. */ ebb_propose_action (ebb_table, EBB_REQUIRE_LOOP_ALIGN, 0, ta_none, offset, 0, TRUE); - offset += insn_len; - continue; } offset += insn_len; @@ -6638,6 +6699,12 @@ compute_ebb_proposed_actions (ebb_constraint *ebb_table) } return TRUE; + + decode_error: + (*_bfd_error_handler) + (_("%B(%A+0x%lx): could not decode instruction; possible configuration mismatch"), + ebb->sec->owner, ebb->sec, offset); + return FALSE; } @@ -8250,7 +8317,7 @@ relax_section (bfd *abfd, asection *sec, struct bfd_link_info *link_info) copy_size = 2; memmove (scratch, &contents[orig_dot], orig_insn_size); BFD_ASSERT (action->removed_bytes == 1); - rv = narrow_instruction (scratch, final_size, 0, TRUE); + rv = narrow_instruction (scratch, final_size, 0); BFD_ASSERT (rv); memmove (&dup_contents[dup_dot], scratch, copy_size); orig_dot += orig_insn_size; @@ -8283,7 +8350,7 @@ relax_section (bfd *abfd, asection *sec, struct bfd_link_info *link_info) copy_size = 3; memmove (scratch, &contents[orig_dot], orig_insn_size); BFD_ASSERT (action->removed_bytes == -1); - rv = widen_instruction (scratch, final_size, 0, TRUE); + rv = widen_instruction (scratch, final_size, 0); BFD_ASSERT (rv); memmove (&dup_contents[dup_dot], scratch, copy_size); orig_dot += orig_insn_size; diff --git a/gas/ChangeLog b/gas/ChangeLog index 39dfcc480fe..60358aab71a 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,10 @@ +2006-05-15 Bob Wilson + + * config/tc-xtensa.c (is_direct_call_opcode, is_branch_jmp_to_next, + xg_assemble_vliw_tokens, xtensa_mark_narrow_branches, + xtensa_fix_short_loop_frags, is_local_forward_loop, relax_frag_immed): + Handle errors from calls to xtensa_opcode_is_* functions. + 2006-05-14 Thiemo Seufer * config/tc-mips.c (macro_build): Test for currently active diff --git a/gas/config/tc-xtensa.c b/gas/config/tc-xtensa.c index 31e0eea0cf9..5cd3c88223d 100644 --- a/gas/config/tc-xtensa.c +++ b/gas/config/tc-xtensa.c @@ -2589,7 +2589,7 @@ is_direct_call_opcode (xtensa_opcode opcode) xtensa_isa isa = xtensa_default_isa; int n, num_operands; - if (xtensa_opcode_is_call (isa, opcode) == 0) + if (xtensa_opcode_is_call (isa, opcode) != 1) return FALSE; num_operands = xtensa_opcode_num_operands (isa, opcode); @@ -3680,8 +3680,8 @@ is_branch_jmp_to_next (TInsn *insn, fragS *fragP) symbolS *sym; fragS *target_frag; - if (xtensa_opcode_is_branch (isa, insn->opcode) == 0 - && xtensa_opcode_is_jump (isa, insn->opcode) == 0) + if (xtensa_opcode_is_branch (isa, insn->opcode) != 1 + && xtensa_opcode_is_jump (isa, insn->opcode) != 1) return FALSE; for (i = 0; i < num_ops; i++) @@ -6831,7 +6831,7 @@ xg_assemble_vliw_tokens (vliw_insn *vinsn) when converting them. */ /* "short_loop": Add a NOP if the loop is < 4 bytes. */ - if (xtensa_opcode_is_loop (isa, vinsn->slots[0].opcode) + if (xtensa_opcode_is_loop (isa, vinsn->slots[0].opcode) == 1 && !vinsn->slots[0].is_specific_opcode) { if (workaround_short_loop && use_transform ()) @@ -7057,7 +7057,7 @@ xtensa_mark_narrow_branches (void) if (vinsn.num_slots == 1 && xtensa_opcode_is_branch (xtensa_default_isa, - vinsn.slots[0].opcode) + vinsn.slots[0].opcode) == 1 && xg_get_single_size (vinsn.slots[0].opcode) == 2 && is_narrow_branch_guaranteed_in_range (fragP, &vinsn.slots[0])) @@ -7550,7 +7550,7 @@ xtensa_fix_short_loop_frags (void) current_target = symbol_get_frag (fragP->fr_symbol); current_opcode = t_insn.opcode; assert (xtensa_opcode_is_loop (xtensa_default_isa, - current_opcode)); + current_opcode) == 1); } if (fragP->fr_type == rs_machine_dependent @@ -7823,7 +7823,7 @@ is_local_forward_loop (const TInsn *insn, fragS *fragP) if (insn->insn_type != ITYPE_INSN) return FALSE; - if (xtensa_opcode_is_loop (xtensa_default_isa, insn->opcode) == 0) + if (xtensa_opcode_is_loop (xtensa_default_isa, insn->opcode) != 1) return FALSE; if (insn->ntok <= LOOP_IMMED_OPN) @@ -8809,7 +8809,7 @@ relax_frag_immed (segT segP, tinsn = cur_vinsn.slots[slot]; tinsn_immed_from_frag (&tinsn, fragP, slot); - if (estimate_only && xtensa_opcode_is_loop (isa, tinsn.opcode)) + if (estimate_only && xtensa_opcode_is_loop (isa, tinsn.opcode) == 1) return 0; if (workaround_b_j_loop_end && ! fragP->tc_frag_data.is_no_transform) -- 2.30.2