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bh=mE2YQI3k7QjNfIgSTjX89W4e9HxHeZrHqF4QA+dJl5U=; b=McBj23laYERK+e93jyqQl/puJB QgOrHL/s8YiiaQlaNrhfSAoRaxkJReCA+OceRl5FAHhOXxbnkMxue4PRpy/IAtGttJVmVwM1tHXIy aV0r3mZE2S0mLXmfowb6w9Kqi; Received: from 97-122-81-39.hlrn.qwest.net ([97.122.81.39]:60418 helo=localhost.localdomain) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1kvSHr-0029qJ-HR for gdb-patches@sourceware.org; Fri, 01 Jan 2021 14:48:43 -0700 From: Tom Tromey To: gdb-patches@sourceware.org Subject: [PATCH 160/203] Introduce ada_var_msym_value_operation Date: Fri, 1 Jan 2021 14:46:40 -0700 Message-Id: <20210101214723.1784144-161-tom@tromey.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210101214723.1784144-1-tom@tromey.com> References: <20210101214723.1784144-1-tom@tromey.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: 97.122.81.39 X-Source-L: No X-Exim-ID: 1kvSHr-0029qJ-HR X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-81-39.hlrn.qwest.net (localhost.localdomain) [97.122.81.39]:60418 X-Source-Auth: tom+tromey.com X-Email-Count: 161 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes 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@sourceware.org Sender: "Gdb-patches" This adds class ada_var_msym_value_operation, which implements OP_VAR_MSYM_VALUE for Ada. gdb/ChangeLog 2021-01-01 Tom Tromey * ada-lang.c (ada_var_msym_value_operation::evaluate_for_cast): New method. * ada-exp.h (class ada_var_msym_value_operation): New. --- gdb/ChangeLog | 6 ++++++ gdb/ada-exp.h | 17 +++++++++++++++++ gdb/ada-lang.c | 25 +++++++++++++++++++++++++ 3 files changed, 48 insertions(+) diff --git a/gdb/ada-exp.h b/gdb/ada-exp.h index 0f2f62f5978..0fe6ecf7e93 100644 --- a/gdb/ada-exp.h +++ b/gdb/ada-exp.h @@ -304,6 +304,23 @@ class ada_var_value_operation using operation::do_generate_ax; }; +/* Variant of var_msym_value_operation for Ada. */ +class ada_var_msym_value_operation + : public var_msym_value_operation +{ +public: + + using var_msym_value_operation::var_msym_value_operation; + + value *evaluate_for_cast (struct type *expect_type, + struct expression *exp, + enum noside noside) override; + +protected: + + using operation::do_generate_ax; +}; + } /* namespace expr */ #endif /* ADA_EXP_H */ diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c index bdd574d033c..3560eee307a 100644 --- a/gdb/ada-lang.c +++ b/gdb/ada-lang.c @@ -10695,6 +10695,31 @@ ada_unop_atr_operation::evaluate (struct type *expect_type, val, type_arg, std::get<2> (m_storage)); } +value * +ada_var_msym_value_operation::evaluate_for_cast (struct type *expect_type, + struct expression *exp, + enum noside noside) +{ + if (noside == EVAL_AVOID_SIDE_EFFECTS) + return value_zero (expect_type, not_lval); + + value *val = evaluate_var_msym_value (noside, + std::get<1> (m_storage), + std::get<0> (m_storage)); + + val = ada_value_cast (expect_type, val); + + /* Follow the Ada language semantics that do not allow taking + an address of the result of a cast (view conversion in Ada). */ + if (VALUE_LVAL (val) == lval_memory) + { + if (value_lazy (val)) + value_fetch_lazy (val); + VALUE_LVAL (val) = not_lval; + } + return val; +} + value * ada_var_value_operation::evaluate_for_cast (struct type *expect_type, struct expression *exp, -- 2.26.2