From patchwork Thu Feb 9 21:38:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Tromey X-Patchwork-Id: 64560 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 6E055382E6B7 for ; Thu, 9 Feb 2023 21:39:45 +0000 (GMT) X-Original-To: gdb-patches@sourceware.org Delivered-To: gdb-patches@sourceware.org Received: from gproxy4-pub.mail.unifiedlayer.com (gproxy4-pub.mail.unifiedlayer.com [69.89.23.142]) by sourceware.org (Postfix) with ESMTPS id 939D5385840D for ; Thu, 9 Feb 2023 21:38:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 939D5385840D Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=tromey.com Received: from cmgw14.mail.unifiedlayer.com (unknown [10.0.90.129]) by progateway6.mail.pro1.eigbox.com (Postfix) with ESMTP id E944D10044F60 for ; Thu, 9 Feb 2023 21:38:40 +0000 (UTC) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with ESMTP id QEcqpLOqQGAj8QEcqphq2y; Thu, 09 Feb 2023 21:38:40 +0000 X-Authority-Reason: nr=8 X-Authority-Analysis: v=2.4 cv=UdyU9IeN c=1 sm=1 tr=0 ts=63e567e0 a=ApxJNpeYhEAb1aAlGBBbmA==:117 a=ApxJNpeYhEAb1aAlGBBbmA==:17 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=IkcTkHD0fZMA:10:nop_charset_1 a=m04uMKEZRckA:10:nop_rcvd_month_year a=Qbun_eYptAEA:10:endurance_base64_authed_username_1 a=xaJLygw7yjPnkatONSAA:9 a=QEXdDO2ut3YA:10:nop_charset_2 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=To:In-Reply-To:References:Message-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Subject:Date:From:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=m+XIrR01ZnXN83Ng6db2laYi0MQvVmsFJ1O/X8KbGss=; b=LmeheSyhVzmNsE6Fr7kjJtencA DzmHJPunuuZR3ryD2xlDm7yEMqxNP7xoP8TJ/HP08QTG7t0KlkKczLV+npuniNxAZtVCR1QENo2/w p9BJeczPGVuHWw9JiucAHJFyF; Received: from 75-166-130-93.hlrn.qwest.net ([75.166.130.93]:52822 helo=[192.168.0.21]) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pQEcq-001ZcE-Ox for gdb-patches@sourceware.org; Thu, 09 Feb 2023 14:38:40 -0700 From: Tom Tromey Date: Thu, 09 Feb 2023 14:38:29 -0700 Subject: [PATCH 08/47] Turn value_bitpos into method MIME-Version: 1.0 Message-Id: <20230209-submit-value-fixups-2023-v1-8-55dc2794dbb9@tromey.com> References: <20230209-submit-value-fixups-2023-v1-0-55dc2794dbb9@tromey.com> In-Reply-To: <20230209-submit-value-fixups-2023-v1-0-55dc2794dbb9@tromey.com> To: gdb-patches@sourceware.org X-Mailer: b4 0.12.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 75.166.130.93 X-Source-L: No X-Exim-ID: 1pQEcq-001ZcE-Ox X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-130-93.hlrn.qwest.net ([192.168.0.21]) [75.166.130.93]:52822 X-Source-Auth: tom+tromey.com X-Email-Count: 9 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3027.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, JMQ_SPF_NEUTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces+patchwork=sourceware.org@sourceware.org Sender: "Gdb-patches" This changes value_bitpos to be a method of value. Much of this patch was written by script. --- gdb/ada-lang.c | 20 ++++++++++---------- gdb/breakpoint.c | 4 ++-- gdb/dwarf2/expr.c | 6 +++--- gdb/valops.c | 10 +++++----- gdb/value.c | 13 +------------ gdb/value.h | 16 +++++++++------- 6 files changed, 30 insertions(+), 39 deletions(-) diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c index 9cbbbb06db3..d1ad9a28ca7 100644 --- a/gdb/ada-lang.c +++ b/gdb/ada-lang.c @@ -569,7 +569,7 @@ coerce_unspec_val_to_type (struct value *val, struct type *type) } set_value_component_location (result, val); result->set_bitsize (val->bitsize ()); - set_value_bitpos (result, value_bitpos (val)); + result->set_bitpos (val->bitpos ()); if (VALUE_LVAL (result) == lval_memory) set_value_address (result, value_address (val)); return result; @@ -2831,12 +2831,12 @@ ada_value_primitive_packed_val (struct value *obj, const gdb_byte *valaddr, long new_offset = offset; set_value_component_location (v, obj); - set_value_bitpos (v, bit_offset + value_bitpos (obj)); + v->set_bitpos (bit_offset + obj->bitpos ()); v->set_bitsize (bit_size); - if (value_bitpos (v) >= HOST_CHAR_BIT) + if (v->bitpos () >= HOST_CHAR_BIT) { ++new_offset; - set_value_bitpos (v, value_bitpos (v) - HOST_CHAR_BIT); + v->set_bitpos (v->bitpos () - HOST_CHAR_BIT); } set_value_offset (v, new_offset); @@ -2896,7 +2896,7 @@ ada_value_assign (struct value *toval, struct value *fromval) && (type->code () == TYPE_CODE_FLT || type->code () == TYPE_CODE_STRUCT)) { - int len = (value_bitpos (toval) + int len = (toval->bitpos () + bits + HOST_CHAR_BIT - 1) / HOST_CHAR_BIT; int from_size; gdb_byte *buffer = (gdb_byte *) alloca (len); @@ -2915,7 +2915,7 @@ ada_value_assign (struct value *toval, struct value *fromval) ULONGEST from_offset = 0; if (is_big_endian && is_scalar_type (fromval->type ())) from_offset = from_size - bits; - copy_bitwise (buffer, value_bitpos (toval), + copy_bitwise (buffer, toval->bitpos (), value_contents (fromval).data (), from_offset, bits, is_big_endian); write_memory_with_notification (to_addr, buffer, len); @@ -2951,7 +2951,7 @@ value_assign_to_component (struct value *container, struct value *component, LONGEST offset_in_container = (LONGEST) (value_address (component) - value_address (container)); int bit_offset_in_container = - value_bitpos (component) - value_bitpos (container); + component->bitpos () - container->bitpos (); int bits; val = value_cast (component->type (), val); @@ -2972,13 +2972,13 @@ value_assign_to_component (struct value *container, struct value *component, src_offset = 0; copy_bitwise ((value_contents_writeable (container).data () + offset_in_container), - value_bitpos (container) + bit_offset_in_container, + container->bitpos () + bit_offset_in_container, value_contents (val).data (), src_offset, bits, 1); } else copy_bitwise ((value_contents_writeable (container).data () + offset_in_container), - value_bitpos (container) + bit_offset_in_container, + container->bitpos () + bit_offset_in_container, value_contents (val).data (), 0, bits, 0); } @@ -6918,7 +6918,7 @@ ada_value_primitive_field (struct value *arg1, int offset, int fieldno, /* Handle packed fields. It might be that the field is not packed relative to its containing structure, but the structure itself is packed; in this case we must take the bit-field path. */ - if (TYPE_FIELD_BITSIZE (arg_type, fieldno) != 0 || value_bitpos (arg1) != 0) + if (TYPE_FIELD_BITSIZE (arg_type, fieldno) != 0 || arg1->bitpos () != 0) { int bit_pos = arg_type->field (fieldno).loc_bitpos (); int bit_size = TYPE_FIELD_BITSIZE (arg_type, fieldno); diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c index edb685fc4d0..7e3bb715a3c 100644 --- a/gdb/breakpoint.c +++ b/gdb/breakpoint.c @@ -2088,7 +2088,7 @@ update_watchpoint (struct watchpoint *b, bool reparse) { /* Extract the bit parameters out from the bitfield sub-expression. */ - bitpos = value_bitpos (v); + bitpos = v->bitpos (); bitsize = v->bitsize (); } else if (v == result && b->val_bitsize != 0) @@ -10169,7 +10169,7 @@ watch_command_1 (const char *arg, int accessflag, int from_tty, if (val_as_value != NULL && just_location) { - saved_bitpos = value_bitpos (val_as_value); + saved_bitpos = val_as_value->bitpos (); saved_bitsize = val_as_value->bitsize (); } diff --git a/gdb/dwarf2/expr.c b/gdb/dwarf2/expr.c index cbc20509cbe..826573b628d 100644 --- a/gdb/dwarf2/expr.c +++ b/gdb/dwarf2/expr.c @@ -172,7 +172,7 @@ rw_pieced_value (value *v, value *from, bool check_optimized) if (v->bitsize ()) { bits_to_skip += (8 * value_offset (value_parent (v)) - + value_bitpos (v)); + + v->bitpos ()); if (from != nullptr && (type_byte_order (from->type ()) == BFD_ENDIAN_BIG)) @@ -468,7 +468,7 @@ check_pieced_synthetic_pointer (const value *value, LONGEST bit_offset, bit_offset += 8 * value_offset (value); if (value->bitsize ()) - bit_offset += value_bitpos (value); + bit_offset += value->bitpos (); for (i = 0; i < c->pieces.size () && bit_length > 0; i++) { @@ -514,7 +514,7 @@ indirect_pieced_value (value *value) int bit_length = 8 * type->length (); LONGEST bit_offset = 8 * value_offset (value); if (value->bitsize ()) - bit_offset += value_bitpos (value); + bit_offset += value->bitpos (); for (i = 0; i < c->pieces.size () && bit_length > 0; i++) { diff --git a/gdb/valops.c b/gdb/valops.c index cbc995295ed..f17a0b6a2d0 100644 --- a/gdb/valops.c +++ b/gdb/valops.c @@ -1137,7 +1137,7 @@ value_assign (struct value *toval, struct value *fromval) set_internalvar_component (VALUE_INTERNALVAR (toval), offset, - value_bitpos (toval), + toval->bitpos (), toval->bitsize (), fromval); } @@ -1155,7 +1155,7 @@ value_assign (struct value *toval, struct value *fromval) struct value *parent = value_parent (toval); changed_addr = value_address (parent) + value_offset (toval); - changed_len = (value_bitpos (toval) + changed_len = (toval->bitpos () + toval->bitsize () + HOST_CHAR_BIT - 1) / HOST_CHAR_BIT; @@ -1176,7 +1176,7 @@ value_assign (struct value *toval, struct value *fromval) read_memory (changed_addr, buffer, changed_len); modify_field (type, buffer, value_as_long (fromval), - value_bitpos (toval), toval->bitsize ()); + toval->bitpos (), toval->bitsize ()); dest_buffer = buffer; } else @@ -1221,7 +1221,7 @@ value_assign (struct value *toval, struct value *fromval) gdb_byte buffer[sizeof (LONGEST)]; int optim, unavail; - changed_len = (value_bitpos (toval) + changed_len = (toval->bitpos () + toval->bitsize () + HOST_CHAR_BIT - 1) / HOST_CHAR_BIT; @@ -1244,7 +1244,7 @@ value_assign (struct value *toval, struct value *fromval) } modify_field (type, buffer, value_as_long (fromval), - value_bitpos (toval), toval->bitsize ()); + toval->bitpos (), toval->bitsize ()); put_frame_register_bytes (frame, value_reg, offset, {buffer, changed_len}); diff --git a/gdb/value.c b/gdb/value.c index 963350a487c..3ef1d85a20a 100644 --- a/gdb/value.c +++ b/gdb/value.c @@ -905,17 +905,6 @@ set_value_offset (struct value *value, LONGEST offset) value->m_offset = offset; } -LONGEST -value_bitpos (const struct value *value) -{ - return value->m_bitpos; -} -void -set_value_bitpos (struct value *value, LONGEST bit) -{ - value->m_bitpos = bit; -} - struct value * value_parent (const struct value *value) { @@ -3777,7 +3766,7 @@ value_fetch_lazy_bitfield (struct value *val) if (value_lazy (parent)) value_fetch_lazy (parent); - unpack_value_bitfield (val, value_bitpos (val), val->bitsize (), + unpack_value_bitfield (val, val->bitpos (), val->bitsize (), value_contents_for_printing (parent).data (), value_offset (val), parent); } diff --git a/gdb/value.h b/gdb/value.h index fed4d804f55..3f48b2350b9 100644 --- a/gdb/value.h +++ b/gdb/value.h @@ -179,6 +179,15 @@ struct value void set_bitsize (LONGEST bit) { m_bitsize = bit; } + /* Only used for bitfields; position of start of field. For + little-endian targets, it is the position of the LSB. For + big-endian targets, it is the position of the MSB. */ + LONGEST bitpos () const + { return m_bitpos; } + + void set_bitpos (LONGEST bit) + { m_bitpos = bit; } + /* Type of value; either not an lval, or one of the various different possible kinds of lval. */ @@ -346,13 +355,6 @@ struct value std::vector m_optimized_out; }; -/* Only used for bitfields; position of start of field. For - little-endian targets, it is the position of the LSB. For - big-endian targets, it is the position of the MSB. */ - -extern LONGEST value_bitpos (const struct value *); -extern void set_value_bitpos (struct value *, LONGEST bit); - /* Only used for bitfields; the containing value. This allows a single read from the target when displaying multiple bitfields. */