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[37.24.206.209]) by smtp.gmail.com with ESMTPSA id k9-20020a056e02156900b0035da74cd896sm4764564ilu.77.2023.12.15.04.06.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 Dec 2023 04:06:11 -0800 (PST) Message-ID: Date: Fri, 15 Dec 2023 13:06:09 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 01/22] Arm: drop .bss override Content-Language: en-US From: Jan Beulich To: Binutils Cc: Nick Clifton , Alan Modra , "ramana.radhakrishnan@arm.com" , Richard Earnshaw References: <5e1fe3bc-78ca-4c54-a19c-f8efa015f839@suse.com> 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: <5e1fe3bc-78ca-4c54-a19c-f8efa015f839@suse.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3026.3 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,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: The comment looks bogus (perhaps simply stale), and there are also no other precautions against subsections being used on ELF with .bss. It also doesn't look to be a good idea to override the custom handlers that ELF and COFF have (afaict doing so further broke .previous on ELF). --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -3347,20 +3347,7 @@ s_syntax (int unused ATTRIBUTE_UNUSED) demand_empty_rest_of_line (); } -/* Directives: sectioning and alignment. */ - -static void -s_bss (int ignore ATTRIBUTE_UNUSED) -{ - /* We don't support putting frags in the BSS segment, we fake it by - marking in_bss, then looking at s_skip for clues. */ - subseg_set (bss_section, 0); - demand_empty_rest_of_line (); - -#ifdef md_elf_section_change_hook - md_elf_section_change_hook (); -#endif -} +/* Directives: alignment. */ static void s_even (int ignore ATTRIBUTE_UNUSED) @@ -5187,7 +5174,6 @@ const pseudo_typeS md_pseudo_table[] = { "dn", s_dn, 0 }, { "qn", s_qn, 0 }, { "unreq", s_unreq, 0 }, - { "bss", s_bss, 0 }, { "align", s_align_ptwo, 2 }, { "arm", s_arm, 0 }, { "thumb", s_thumb, 0 }, --- a/gas/doc/c-arm.texi +++ b/gas/doc/c-arm.texi @@ -870,11 +870,6 @@ incrementally to the architecture being This performs the same action as @var{.code 32}. @c BBBBBBBBBBBBBBBBBBBBBBBBBB - -@cindex @code{.bss} directive, ARM -@item .bss -This directive switches to the @code{.bss} section. - @c CCCCCCCCCCCCCCCCCCCCCCCCCC @cindex @code{.cantunwind} directive, ARM