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aarch64: Accept PLT calls to __getauxval within libc.so

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When using outline atomics (-moutline-atomics, the default for ARMv8-A
starting with GCC 10), libgcc contains an ELF constructor which calls
__getauxval.  This code is built outside of glibc, so none of its
internal PLT avoidance schemes can be applied to it.  This change
suppresses the elf/check-localplt failure.
This commit is contained in:
Florian Weimer
2020-05-12 11:30:30 +02:00
parent c2d0411488
commit 16536e98e3
1 changed files with 3 additions and 0 deletions
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3
sysdeps/unix/sysv/linux/aarch64/localplt.data
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@@ -7,6 +7,9 @@ libc.so: malloc
libc.so: memalign
libc.so: realloc
libm.so: matherr
# If outline atomics are used, libgcc (built outside of glibc) may
# call __getauxval using the PLT.
libc.so: __getauxval ?
# The dynamic loader needs __tls_get_addr for TLS.
ld.so: __tls_get_addr
# The TLS-enabled version of these functions is interposed from libc.so.