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3dcad8158f
After commitf7649d5780("dlopen: Do not block signals"), the dynamic linker no longer uses sigprocmask, which means that it does not have to be made available explicitly on hurd. This reverts commit892badc9bb("hurd: Make __sigprocmask GLIBC_PRIVATE") and commitd5ed9ba29a("hurd: Fix ld.so link"), but keeps the comment changes from the second commit.
65 lines
2.2 KiB
Plaintext
65 lines
2.2 KiB
Plaintext
# See scripts/check-localplt.awk for how this file is processed.
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# PLT use is required for the malloc family and for matherr because
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# users can define their own functions and have library internals call them.
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# Linker in binutils 2.26 and newer consolidates R_X86_64_JUMP_SLOT
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# relocation with R_386_GLOB_DAT relocation against the same symbol.
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libc.so: calloc + REL R_386_GLOB_DAT
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libc.so: free + REL R_386_GLOB_DAT
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libc.so: malloc + REL R_386_GLOB_DAT
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libc.so: memalign + REL R_386_GLOB_DAT
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libc.so: realloc + REL R_386_GLOB_DAT
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libm.so: matherr + REL R_386_GLOB_DAT
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# The main malloc is interposed into the dynamic linker, for
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# allocations after the initial link (when dlopen is used).
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ld.so: malloc + REL R_386_GLOB_DAT
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ld.so: calloc + REL R_386_GLOB_DAT
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ld.so: realloc + REL R_386_GLOB_DAT
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ld.so: free + REL R_386_GLOB_DAT
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# The TLS-enabled version of these functions is interposed from libc.so.
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ld.so: _dl_signal_error + REL R_386_GLOB_DAT
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ld.so: _dl_catch_error + REL R_386_GLOB_DAT
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ld.so: _dl_signal_exception + REL R_386_GLOB_DAT
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ld.so: _dl_catch_exception + REL R_386_GLOB_DAT
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# The dynamic linker has its own versions of basic functions for initial loading
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# of shared libraries. These need to be overriden by libc once loaded.
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ld.so: __open ?
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ld.so: __open64
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ld.so: __close
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ld.so: __read
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ld.so: __write
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ld.so: __writev
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ld.so: __libc_lseek64
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ld.so: __mmap
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ld.so: __fxstat64
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ld.so: __xstat64
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ld.so: __access
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ld.so: __access_noerrno
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ld.so: __getpid
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ld.so: __getcwd
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ld.so: __sbrk
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ld.so: __strtoul_internal
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#ld.so: _exit
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ld.so: abort
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ld.so: _hurd_intr_rpc_mach_msg
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ld.so: __errno_location
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# rtld_hidden is currently disabled to avoid having to special-case the
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# functions above which do need a PLT. These are thus currently expected.
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ld.so: _dl_allocate_tls
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ld.so: _dl_allocate_tls_init
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ld.so: _dl_exception_create
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ld.so: _dl_exception_create_format
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ld.so: _dl_exception_free
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ld.so: _dl_find_dso_for_object
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ld.so: _dl_init_first
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ld.so: _dl_mcount
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ld.so: ___tls_get_addr
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ld.so: __tunable_get_val
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#
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# These should ideally be avoided, but is currently difficult
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libc.so: siglongjmp ?
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libc.so: longjmp ?
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# This is from lseek.c
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libc.so: __libc_lseek64 ?
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# This is through cleanup_region_start from vfprintf.c
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libc.so: _IO_funlockfile ?
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