# See scripts/check-localplt.awk for how this file is processed. # PLT use is required for the malloc family and for matherr because # users can define their own functions and have library internals call them. # Linker in binutils 2.26 and newer consolidates R_X86_64_JUMP_SLOT # relocation with R_386_GLOB_DAT relocation against the same symbol. libc.so: calloc + REL R_386_GLOB_DAT libc.so: free + REL R_386_GLOB_DAT libc.so: malloc + REL R_386_GLOB_DAT libc.so: memalign + REL R_386_GLOB_DAT libc.so: realloc + REL R_386_GLOB_DAT libm.so: matherr + REL R_386_GLOB_DAT # The main malloc is interposed into the dynamic linker, for # allocations after the initial link (when dlopen is used). ld.so: malloc + REL R_386_GLOB_DAT ld.so: calloc + REL R_386_GLOB_DAT ld.so: realloc + REL R_386_GLOB_DAT ld.so: free + REL R_386_GLOB_DAT # The TLS-enabled version of these functions is interposed from libc.so. ld.so: _dl_signal_error + REL R_386_GLOB_DAT ld.so: _dl_catch_error + REL R_386_GLOB_DAT ld.so: _dl_signal_exception + REL R_386_GLOB_DAT ld.so: _dl_catch_exception + REL R_386_GLOB_DAT # The dynamic linker has its own versions of basic functions for initial loading # of shared libraries. These need to be overriden by libc once loaded. ld.so: __open ? ld.so: __open64 ld.so: __close ld.so: __read ld.so: __write ld.so: __writev ld.so: __libc_lseek64 ld.so: __mmap ld.so: __fxstat64 ld.so: __xstat64 #ld.so: __access ld.so: __access_noerrno ld.so: __getpid #ld.so: __getcwd ld.so: __sbrk ld.so: __strtoul_internal #ld.so: _exit ld.so: abort ld.so: _hurd_intr_rpc_mach_msg ld.so: __errno_location # rtld_hidden is currently disabled to avoid having to special-case the # functions above which do need a PLT. These are thus currently expected. ld.so: _dl_allocate_tls ld.so: _dl_allocate_tls_init ld.so: _dl_exception_create ld.so: _dl_exception_create_format ld.so: _dl_exception_free ld.so: _dl_find_dso_for_object ld.so: _dl_init_first ld.so: _dl_mcount ld.so: ___tls_get_addr ld.so: __tunable_get_val # # These should ideally be avoided, but is currently difficult libc.so: siglongjmp ? libc.so: longjmp ? # This is from lseek.c libc.so: __libc_lseek64 ? # This is through cleanup_region_start from vfprintf.c libc.so: _IO_funlockfile ?