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Sun, 24 Sep 2023 20:32:04 +0200 MIME-Version: 1.0 Message-ID: From: Max Larsson To: binutils@sourceware.org Subject: Overlapping program headers/segments Content-Type: text/plain; charset=UTF-8 Date: Sun, 24 Sep 2023 20:32:04 +0200 Importance: normal Sensitivity: Normal Content-Transfer-Encoding: quoted-printable X-Priority: 3 X-Provags-ID: V03:K1:Uprk4fYMFYjrAMvV1BH0HO2t3MzV3hlQgIf6EDqO/fWidtXFiSJUmVmOmyHqan4T7ov5j lP1YMUsxlW35BwyJfcuo+gp9UiNTFLXii2Q3EUOxnXq0wULvPETiL9EJGg9Qd1ajA3Jgi1ZY9dXW OfhBrnK3JUll4NMYVSlGQAJ6e95l72kWXoTt3+7JFQn/arW3DSviv7+N+iK5EMpLLQy8N3f+9Xi8 o+rAnn9mHbz3mHRahTv4e1Vyb6BKhIVYDMeLwGc4B5PGMYr1V7NdPEfyoA76MtsWMVnwMujqo5df /o= UI-OutboundReport: notjunk:1;M01:P0:LZrHhBPX7FM=;7ll5/d+smyO+M2JXImhOnN6vdHr CFYpKYJ5XI3t/oZvSKJeOl+C1m2air/WUL/xks5rB0bVxc7HuWQq2BwVCHM4eGhtMZOa8DOTc nDtsJY1sZ/NHhe7xrkvOlcZiJYrK9p0omDEkaplHK+F/zbaQ8TYGyTu9xvNlJfraMKfwQiXW8 ZSmsH5vXG5G7nKk4SbBEu7PpZh9/xpdWtaNv90+nsAF0S5tzKAJSKcdM+f3HvCP4MmrCvJZtn t946M+SjtlVqZGPpE96h2A2lTnaZrYq7L1BnnHK2CUiYGTj0X7QUDygAXV9YeV78yn15m6flS +poTw515hytY1KcvARUNCKanMBKATHo3xnsmjojN+QimDSTt1HzXqvIJvEp3XkcZxvdLA4o9a z+o67wNTlTqa/xFw/8NWbcJebZAstpFEnWaztmbb/ECZKWWmT87ITm3Vd6BYvSJMljGjxLjPe mKf+mb5MAVL5phTnuUQGUU6GC3qAzAOUjnACuIGvE10SXqAPtC5FhSA2Z+2Oab654yhjeAnGH b6IhtNL+EKi5XkzYDz0xPqjQrTTT9Cwd4vlVcbm7h5ZjI1jee+JUEMO3cNDog7zwiMAZF/79S Logu112rl4MtZSxmmtv4f0jVV3PD8YAx9Nx1G6VMUoZ1ugBREPLiSvefrS/dWBxN5n8+AGsfQ kkiYXga0piuET8jfKZwsca0QOy4IFGJAAIJJ8k7sMeyPa7qINjFPVq4rZLnoY0vn648ZzpXC5 L6TcG/4IvPtp8F5i78rLMZ49uy2XFMhYJGBPo4RIMeJk/rfwVGF9NSd784bOWMmXTDvpjhnIw qQnZ3MICP4WIMb16gasn6mjpjf9u3e7ah1dh1rwUl3j58= X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,BODY_8BITS,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,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 List-Id: Hi everyone, =C2=A0 I'm about to (re-)port binutils (mainly the the linker ld) to the amigaos = ppc architecture using elf format=2E =C2=A0 Now I've stumble over a problem, where I need to help, how to fix it=2E =C2=A0 What I have done so far, is to put the =2Erodata section in its own segmen= t via defining a target specific method for 'elf_backend_modify_segment'=2E How to do it, I copied= /looked/adapted from elfxx-mips=2Ec:_bfd_mips_elf_modify_segment_map That works as expected=2E =C2=A0 But The result is that the program headers overlap=2E Like this: =C2=A0 Program Headers: =C2=A0 Type=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Of= fset=C2=A0=C2=A0 VirtAddr=C2=A0=C2=A0 PhysAddr=C2=A0=C2=A0 FileSiz MemSiz= =C2=A0 Flg Align =C2=A0 LOAD=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0x= 000000 0x10000000 0x10000000 0x02034 0x02034 R E 0x10000 =C2=A0 LOAD=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0x= 020000 0x10010000 0x10010000 0x000f0 0x000f0 RW=C2=A0 0x10000 =C2=A0 DYNAMIC=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0x020028 0x100100= 28 0x10010028 0x000b8 0x000b8 RW=C2=A0 0x4 =C2=A0 LOAD=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0x= 012000 0x10002000 0x10002000 0x00031 0x00031 R=C2=A0=C2=A0 0x10000 =C2=A0Section to Segment mapping: =C2=A0 Segment Sections=2E=2E=2E =C2=A0=C2=A0 00=C2=A0=C2=A0=C2=A0=C2=A0 =2Ehash =2Edynsym =2Edynstr =2Erel= a=2Edyn =2Erela=2Egot2 =2Erela=2Eplt =2Etext =2Eplt =C2=A0=C2=A0 01=C2=A0=C2=A0=C2=A0=C2=A0 =2Einit_array =2Efini_array =2Egot= 2 =2Edynamic =2Egot =C2=A0=C2=A0 02=C2=A0=C2=A0=C2=A0=C2=A0 =2Edynamic =C2=A0=C2=A0 03=C2=A0=C2=A0=C2=A0=C2=A0 =2Erodata =C2=A0 You see, if you take the Virt-/PhysAddr and add the MemSize from the first program header the result is 0x10002034, which is greater than the Virt-/P= hysAddr of the last program header 0x10002000=2E So my question why do I get such a result, and how can I avoid it? best regards Max Larsson