From f0b2132b35248c1f4a80f62a2c38cddcc802aa8c Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Fri, 28 Jun 2019 10:12:50 +0200 Subject: ld.so: Support moving versioned symbols between sonames [BZ #24741] This change should be fully backwards-compatible because the old code aborted the load if a soname mismatch was encountered (instead of searching further for a matching symbol). This means that no different symbols are found. The soname check was explicitly disabled for the skip_map != NULL case. However, this only happens with dl(v)sym and RTLD_NEXT, and those lookups do not come with a verneed entry that could be used for the check. The error check was already explicitly disabled for the skip_map != NULL case, that is, when dl(v)sym was called with RTLD_NEXT. But _dl_vsym always sets filename in the struct r_found_version argument to NULL, so the check was not active anyway. This means that symbol lookup results for the skip_map != NULL case do not change, either. --- elf/tst-sonamemove-runmod1.map | 3 +++ 1 file changed, 3 insertions(+) create mode 100644 elf/tst-sonamemove-runmod1.map (limited to 'elf/tst-sonamemove-runmod1.map') diff --git a/elf/tst-sonamemove-runmod1.map b/elf/tst-sonamemove-runmod1.map new file mode 100644 index 0000000..2ea81c6 --- /dev/null +++ b/elf/tst-sonamemove-runmod1.map @@ -0,0 +1,3 @@ +SONAME_MOVE { + global: other_function; +}; -- cgit v1.1