Web(gdb) run Starting program: /usr/bin/true Breakpoint 1, main (argc=1, argv=0x7fffffffdad8) at ../src/true.c:56 56 { (gdb) print main $2 = {int (int, char **)} 0x555555556550 (gdb) disassemble main,+8 Dump of assembler code from 0x555555556550 to 0x555555556558: => 0x0000555555556550 : endbr64 0x0000555555556554 : cmp $0x2,%edi … Web1. Each process is given physical memory called the process's virtual memory space. 2. A process is unaware of the details of its physical memory (i.e. where it physically resides). All the process knows is how big the chunk is and that its chunk begins at address 0. 3. Each process is unaware of any other chunks of VM belonging to other ...
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WebApr 14, 2024 · 最后，gdb attach 该进程，使用dump memory将so对应的地址dump出来。 4. dump 内存. 方式一： dd if=/dev/mem of=/tmp/mem_dump.bin count=1 bs=4M. 方式二： 使用gdb, attach 某个进程。 (gdb) help dump Dump target code/data to a local file. List of dump subcommands: dump binary -- Write target code/data to a raw binary file WebMar 30, 2024 · Thus both processes have writable memory available at virtual addresses 555555558000-555555559000, but each process has a different page table for that memory, ultimately pointing to different physical addresses. (I’m simplifying a little, there are additional subtilities for e.g. copy-on-write etc. but we can ignore that here.) Share finanzplaner lohn
Re: [Qemu-devel] Physical address debugging
WebDec 15, 2024 · Note that there's a difference between virtual memory addresses which belong to a certain process, and physical memory addresses which you can access via … WebIf you want to associate a file with a new program (e.g. my-file.GDB) you have two ways to do it. The first and the easiest one is to right-click on the selected GDB file. From the … WebQ: why 1 in the low bits? (gdb) print/x 0x107000 + 0xbeb $13 = 0x107beb (gdb) x/i 0x107beb why did the physical address work in gdb? back to kvmalloc it called setupkvm to create a page table now it calls switchkvm to start using it switchkvm loads kpgdir into %cr3 and now 0x107beb won't work: (gdb) x/i 0x107beb 0x107beb: Cannot access … finanzplaner tool