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Gdb has a list of directories to search for source files; this is called the source path. each time gdb wants a source file, it tries all the directories in the list, in the order they are present in the list, until it finds a file with the desired name. If i there will be a lot such files, adding the whole path for each file is like putting all the files in one debug directory. in other words, if you have files with the same names but different directories (during the compilation time) adding the whole paths will cause name conflicts (gdb will not distinguish between this files).

There are multiple ways to help gdb find sources, where the easiest ones are directory and set substitute path commands, though fdebug prefix map is really useful. now, when you have source level info go and explore something! resources introduction to the dwarf debugging format gdb doc on source path. Neither is the current working directory, unless it happens to be in the source path. if gdb cannot find a source file in the source path, and the object program records a directory, gdb tries that directory too. if the source path is empty, and there is no record of the compilation directory, gdb looks in the current directory as a last resort. (gdb) start temporary breakpoint 1 at 0x80486b6: file test.cpp, line 5. starting program: /home/bazis/test temporary breakpoint 1, main (argc=1, argv=0xbffff064) at test.cpp:5 5 std::cout << "hello!" << std::endl; (gdb) info source current source file is test.cpp compilation directory is /home/bazis located in /home/bazis/test.cpp contains 7 lines. source language is c . compiled with dwarf 2. A is parent directory for b, c, d where b,c,d are child directories. source files are distributed in b,c,b. i would need to specify to gdb that all the source files are located in 'a' (parent directory) which gdb should use as a reference and search for source files recursively while debugging a program.

(gdb) start temporary breakpoint 1 at 0x80486b6: file test.cpp, line 5. starting program: /home/bazis/test temporary breakpoint 1, main (argc=1, argv=0xbffff064) at test.cpp:5 5 std::cout << "hello!" << std::endl; (gdb) info source current source file is test.cpp compilation directory is /home/bazis located in /home/bazis/test.cpp contains 7 lines. source language is c . compiled with dwarf 2. A is parent directory for b, c, d where b,c,d are child directories. source files are distributed in b,c,b. i would need to specify to gdb that all the source files are located in 'a' (parent directory) which gdb should use as a reference and search for source files recursively while debugging a program. The " g" argument tells the compiler to include the path to the source file in the output exe so gdb can locate the source code. apparently $ {file} includes the full path and gdb pukes on it. The simplest way is to extract the package source code somewhere: go to an appropriate directory, then run apt source glibc in gdb, add the corresponding directory to the source path by using the directory command. you may also want the detached debug symbols; i don’t know whether devuan provides debug symbol packages in general (dbgsym packages), but i see it ships libc6 dbg which has the.

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