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[37.24.206.209]) by smtp.gmail.com with ESMTPSA id y21-20020a02ce95000000b0046e57331433sm3496550jaq.105.2024.01.23.00.38.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 23 Jan 2024 00:38:22 -0800 (PST) Message-ID: Date: Tue, 23 Jan 2024 09:38:19 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: RFC: Formalization of the Intel assembly syntax (PR53929) Content-Language: en-US To: LIU Hao Cc: binutils@sourceware.org, GCC Development References: <95e373fb-24f3-4b10-9ad1-948597ed9d67@suse.com> <40ae7cb2-c094-4594-859d-470e7a7fce49@126.com> <112d6607-3f35-4679-9ba8-d9257d2d20c7@suse.com> <1999d6bb-757f-41f4-ad8c-e2d54d14ee4b@suse.com> <38e2198d-ee2d-4b91-92d3-0890779bf0dd@126.com> From: Jan Beulich Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: <38e2198d-ee2d-4b91-92d3-0890779bf0dd@126.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-3025.7 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 23.01.2024 02:27, LIU Hao wrote: > 在 2024-01-22 16:39, Jan Beulich 写道: >> Right, I did some work in that direction a while ago. But iirc there are >> still cases left to be addressed. > > Attached is a draft patch for GCC, bootstrapped on {i686,x86_64}-w64-mingw32 with GCC 13.2 and > binutils 2.41.0. Right, but this is very "draft". You can't blindly assume the gas you use actually can deal with quotation. > This addresses the issue when a bad name exists in the same translation unit. In the case of an > external symbol there's still an error: > > ``` > extern int bx; > int get(const char* p) { return p[bx]; } > ``` > > ``` > lh_mouse@lhmouse-pc ~/Desktop $ x86_64-w64-mingw32-gcc -S -o - -masm=intel test.c | fgrep bx > mov rax, QWORD PTR .refptr.bx[rip] > .section .rdata$.refptr.bx, "dr" > .globl .refptr.bx > .refptr.bx: > .quad bx Sure, this one needs quoting then, too. Jan > lh_mouse@lhmouse-pc ~/Desktop $ x86_64-w64-mingw32-gcc -masm=intel test.c | fgrep bx > C:\Users\lh_mouse\AppData\Local\Temp\ccuyuu6c.s: Assembler messages: > C:\Users\lh_mouse\AppData\Local\Temp\ccuyuu6c.s:29: Error: invalid use of register > C:\Users\lh_mouse\AppData\Local\Temp\ccuyuu6c.s:29: Warning: register value used as expression > lh_mouse@lhmouse-pc ~/Desktop $ > ``` > > > >