5047057ffa
Given my patch <https://gcc.gnu.org/ml/gcc-patches/2017-08/msg00965.html> for the ICEs building a glibc string function test for SH, the testsuite can build completely for SH with GCC 7 and mainline. However, there is a test failure that does not appear for GCC 6: check-localplt fails because of an abort PLT reference in libc.so. Given the lack of a trap insn pattern for SH, it seems unavoidable that the compiler might sometimes generate abort calls, and such abort calls (generated from __builtin_trap when there is no trap insn pattern) will be unaffected by the normal mapping to __GI_abort for calls within glibc. Thus, this patch allows (but does not require) an abort PLT reference in libc.so for SH. Tested for sh4-linux-gnu with build-many-glibcs.py (GCC 7, with my patch applied). * sysdeps/unix/sysv/linux/sh/localplt.data: Allow abort in libc.so.
26 lines
810 B
Plaintext
26 lines
810 B
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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libc.so: calloc
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libc.so: free
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libc.so: malloc
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libc.so: memalign
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libc.so: realloc
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libc.so: _Unwind_Find_FDE
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libc.so: _exit
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libc.so: __errno_location
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libm.so: matherr
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# Generated by the compiler because there is no trap insn pattern.
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libc.so: abort ?
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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
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ld.so: calloc
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ld.so: realloc
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ld.so: free
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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
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ld.so: _dl_catch_error
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ld.so: _dl_signal_exception
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ld.so: _dl_catch_exception
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