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[37.24.206.209]) by smtp.gmail.com with ESMTPSA id k9-20020a056e02156900b0035da74cd896sm4764564ilu.77.2023.12.15.04.06.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 Dec 2023 04:06:53 -0800 (PST) Message-ID: <45bac99c-1481-4c0e-a38a-2ab583cadb55@suse.com> Date: Fri, 15 Dec 2023 13:06:52 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 02/22] Arm64: drop .bss override Content-Language: en-US From: Jan Beulich To: Binutils Cc: Nick Clifton , Alan Modra , Richard Earnshaw , Marcus Shawcroft 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, perhaps wrongly copied from Arm in the first place), 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). As to the mapping state update - such also doesn't appear to be done for other section switching, so its original purpose was at best questionable as well. --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -1866,17 +1866,7 @@ mapping_state_2 (enum mstate state, int #define mapping_state_2(x, y) /* nothing */ #endif -/* 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 (); - mapping_state (MAP_DATA); -} +/* Directives: alignment. */ static void s_even (int ignore ATTRIBUTE_UNUSED) @@ -2396,7 +2386,6 @@ const pseudo_typeS md_pseudo_table[] = { /* Never called because '.req' does not start a line. */ {"req", s_req, 0}, {"unreq", s_unreq, 0}, - {"bss", s_bss, 0}, {"even", s_even, 0}, {"ltorg", s_ltorg, 0}, {"pool", s_ltorg, 0}, --- a/gas/doc/c-aarch64.texi +++ b/gas/doc/c-aarch64.texi @@ -389,11 +389,6 @@ extensions by the @option{-mcpu} command incrementally to the architecture being compiled for. @c BBBBBBBBBBBBBBBBBBBBBBBBBB - -@cindex @code{.bss} directive, AArch64 -@item .bss -This directive switches to the @code{.bss} section. - @c CCCCCCCCCCCCCCCCCCCCCCCCCC @cindex @code{.cpu} directive, AArch64