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Diffstat (limited to 'src/development/ld.so.md')
| -rw-r--r-- | src/development/ld.so.md | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/development/ld.so.md b/src/development/ld.so.md index 9b03c45..fd271bc 100644 --- a/src/development/ld.so.md +++ b/src/development/ld.so.md @@ -199,6 +199,10 @@ symbol=default_main; lookup in file=/lib64/ld-linux-x86-64.so.2 [0] ./main: error: symbol lookup error: undefined symbol: default_main (fatal) ``` +## Load lib with same name from different locations +The sources in [ldso/samename][src-samename] show some experiments, loading the +libs with the same name but potentially from different locations (paths). + ## Dynamic Linking (x86_64) Dynamic linking basically works via one indirect jump. It uses a combination of function trampolines (`.plt` section) and a function pointer table (`.got.plt` @@ -260,3 +264,4 @@ Using `radare2` we can analyze this in more detail: As we can see the offset from relocation at index `0` points to `GOT[3]`. [src-deepbind]: https://github.com/johannst/notes/tree/master/src/development/ldso/deepbind +[src-samename]: https://github.com/johannst/notes/tree/master/src/development/ldso/samename |