rtld: Add UTRACE_LOAD_OBJECT traces for rtld and the main binary

These two objects are loaded by the kernel not rtld, but adding these
two traces means that UTRACE_LOAD_OBJECT traces now describe the
mappings for all executables and DSOs in a process' address space.

Reviewed by:	kib
Obtained from:	CheriBSD
Sponsored by:	AFRL, DARPA
Differential Revision:	https://reviews.freebsd.org/D52034

This commit is contained in:

John Baldwin

2025-08-22 09:59:22 -04:00

parent e679319b84

commit 7d6b5a918a

1 changed files with 4 additions and 0 deletions

									
										libexec/rtld-elf/rtld.c
									
		+4
		
												View File
												
				@@ -859,6 +859,10 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entry **objp)

					linkmap_add(obj_main);

					linkmap_add(&obj_rtld);

					LD_UTRACE(UTRACE_LOAD_OBJECT, obj_main, obj_main->mapbase,

					    obj_main->mapsize, 0, obj_main->path);

					LD_UTRACE(UTRACE_LOAD_OBJECT, &obj_rtld, obj_rtld.mapbase,

					    obj_rtld.mapsize, 0, obj_rtld.path);

					/* Link the main program into the list of objects. */

					TAILQ_INSERT_HEAD(&obj_list, obj_main, next);