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https://sourceware.org/git/glibc.git
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1d95b035c7
It's necessary to stub out __libc_disable_asynccancel and __libc_enable_asynccancel via rtld-stubbed-symbols because the new direct references to the unwinder result in symbol conflicts when the rtld exception handling from libc is linked in during the construction of librtld.map. unwind-forcedunwind.c is merged into unwind-resume.c. libc now needs the functions that were previously only used in libpthread. The GLIBC_PRIVATE exports of __libc_longjmp and __libc_siglongjmp are no longer needed, so switch them to hidden symbols. The symbol __pthread_unwind_next has been moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerva Zanella <adhemerval.zanella@linaro.org>
66 lines
2.2 KiB
Makefile
66 lines
2.2 KiB
Makefile
gnulib-arch = $(elf-objpfx)libgcc-stubs.a
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static-gnulib-arch = $(elf-objpfx)libgcc-stubs.a
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# All supported build tools support TLS descriptors, but the OS may not.
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ifndef have-arm-tls-desc
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have-arm-tls-desc = yes
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endif
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ifeq ($(subdir),elf)
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sysdep-dl-routines += tlsdesc dl-tlsdesc
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sysdep_routines += aeabi_unwind_cpp_pr1 find_exidx
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sysdep-rtld-routines += aeabi_unwind_cpp_pr1
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shared-only-routines += aeabi_unwind_cpp_pr1
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$(objpfx)libgcc-stubs.a: $(objpfx)aeabi_unwind_cpp_pr1.os
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$(build-extra-lib)
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lib-noranlib: $(objpfx)libgcc-stubs.a
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ifeq ($(build-shared),yes)
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ifeq ($(have-arm-tls-desc),yes)
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tests += tst-armtlsdescloc tst-armtlsdescextnow tst-armtlsdescextlazy
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modules-names += tst-armtlsdesclocmod
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modules-names += tst-armtlsdescextlazymod tst-armtlsdescextnowmod
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CPPFLAGS-tst-armtlsdescextnowmod.c += -Dstatic=
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CPPFLAGS-tst-armtlsdescextlazymod.c += -Dstatic=
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CFLAGS-tst-armtlsdesclocmod.c += -mtls-dialect=gnu2
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CFLAGS-tst-armtlsdescextnowmod.c += -mtls-dialect=gnu2
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CFLAGS-tst-armtlsdescextlazymod.c += -mtls-dialect=gnu2
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LDFLAGS-tst-armtlsdescextnowmod.so += -Wl,-z,now
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tst-armtlsdescloc-ENV = LD_BIND_NOW=1
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tst-armtlsdescextnow-ENV = LD_BIND_NOW=1
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tst-armtlsdescextlazy-ENV = LD_BIND_NOW=1
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$(objpfx)tst-armtlsdescloc: $(objpfx)tst-armtlsdesclocmod.so
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$(objpfx)tst-armtlsdescextnow: $(objpfx)tst-armtlsdescextnowmod.so
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$(objpfx)tst-armtlsdescextlazy: $(objpfx)tst-armtlsdescextlazymod.so
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endif
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endif
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endif
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ifeq ($(subdir),csu)
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# get offset to rtld_global._dl_hwcap
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gen-as-const-headers += rtld-global-offsets.sym tlsdesc.sym
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aeabi_constants = aeabi_lcsts aeabi_sighandlers aeabi_math
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aeabi_routines = aeabi_assert aeabi_localeconv aeabi_errno_addr \
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aeabi_mb_cur_max aeabi_atexit aeabi_memclr aeabi_memcpy \
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aeabi_memmove aeabi_memset \
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aeabi_read_tp libc-aeabi_read_tp
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sysdep_routines += $(aeabi_constants) $(aeabi_routines)
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static-only-routines += $(aeabi_constants) aeabi_read_tp
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shared-only-routines += libc-aeabi_read_tp
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sysdep_routines += arm-unwind-resume
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shared-only-routines += arm-unwind-resume
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endif
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ifeq ($(subdir),gmon)
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sysdep_routines += arm-mcount
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endif
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ifeq ($(subdir),rt)
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librt-sysdep_routines += rt-aeabi_unwind_cpp_pr1 rt-arm-unwind-resume
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librt-shared-only-routines += rt-aeabi_unwind_cpp_pr1 rt-arm-unwind-resume
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endif
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