The runtime linker needs to include a path to itself in the link map
it exports to the debugger. It currently has two choices: it can use a compiled-in path (/libexec/ld-elf.so.1) or it can use the path stored in the interpreter path in the binary being executed. The runtime linker currently prefers the second. However, this is usually wrong for compat32 binaries since the binary specifies the path of rtld on a 32-bit system (/libexec/ld-elf.so.1) instead of the actual path (/libexec/ld-elf32.so.1). For now, always assume the compiled in path (/libexec/ld-elf32.so.1) as the rtld path and ignore the path in the binary for the 32-bit runtime linker. Differential Revision: https://reviews.freebsd.org/D1236 Reviewed by: kib
This commit is contained in:
parent
3047cb6803
commit
9abeb029d4
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=275412
@ -503,6 +503,7 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entry **objp)
|
||||
aux_info[AT_STACKPROT]->a_un.a_val != 0)
|
||||
stack_prot = aux_info[AT_STACKPROT]->a_un.a_val;
|
||||
|
||||
#ifndef COMPAT_32BIT
|
||||
/*
|
||||
* Get the actual dynamic linker pathname from the executable if
|
||||
* possible. (It should always be possible.) That ensures that
|
||||
@ -515,6 +516,7 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entry **objp)
|
||||
obj_rtld.path = xstrdup(obj_main->interp);
|
||||
__progname = obj_rtld.path;
|
||||
}
|
||||
#endif
|
||||
|
||||
digest_dynamic(obj_main, 0);
|
||||
dbg("%s valid_hash_sysv %d valid_hash_gnu %d dynsymcount %d",
|
||||
|
Loading…
Reference in New Issue
Block a user