Since GCC 5.0 for ARM the default used ABI is AAPCS1<\/sup>. With AAPCS the stack unwinding works based on unwind tables. The GDB won’t provide a backtrace if these tables are missing in the binaries.2<\/sup><\/p>\n Alternative: The stack is really corrupted. Then the following solution may not help.<\/p>\n The following user-defined command tries to unwind the stack based on the hope that GCC created the stack frames in the common structure<\/a> even if not forced by AAPCS itself.3<\/sup><\/p>\n This simple solution doesn’t provide the possibility to switch between frames (‘(gdb) frame <idx>’).<\/p>\n 1<\/sup> Procedure Call Standard for the Arm 64-bit Architecture Reason Since GCC 5.0 for ARM the default used ABI is AAPCS1. With AAPCS the stack unwinding works based on<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[28],"tags":[],"_links":{"self":[{"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=\/wp\/v2\/posts\/3988"}],"collection":[{"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3988"}],"version-history":[{"count":3,"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=\/wp\/v2\/posts\/3988\/revisions"}],"predecessor-version":[{"id":18898,"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=\/wp\/v2\/posts\/3988\/revisions\/18898"}],"wp:attachment":[{"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3988"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.max-sperling.bplaced.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nSolution<\/h2>\n
\r\n(gdb) define stackwalker\r\n set $a = $arg0\r\n while $a < *(long*) $a\r\n x\/2a $a\r\n set $a = *(long*) $a\r\n end\r\nend\r\n(gdb) stackwalker $fp\r\n<\/pre>\n
\nDrawback<\/h2>\n
\n
\n2<\/sup> GCC build flag: ‘-fno-asynchronous-unwind-tables’
\n3<\/sup> “It may elect not to maintain a frame chain and to use the frame pointer register as a general-purpose callee-saved register.” (Link<\/a>, Spec on GitHub, Tag: 2022Q3)<\/p>\n","protected":false},"excerpt":{"rendered":"