abd0cdc9c0
We shouldn't call external function, __cpu_indicator_init, while an object is being relocated since its .got.plt section hasn't been updated. It works for non-PIE since no update on .got.plt section is required. This patch creates libgcc.so as a linker script, hides __cpu_indicator_init and __cpu_model in libgcc.so.1 from linker, forces linker to resolve __cpu_indicator_init and __cpu_model to their hidden definitions in libgcc.a while providing backward binary compatibility. gcc/testsuite/ PR target/65612 * g++.dg/ext/mv18.C: New test. * g++.dg/ext/mv19.C: Likewise. * g++.dg/ext/mv20.C: Likewise. * g++.dg/ext/mv21.C: Likewise. * g++.dg/ext/mv22.C: Likewise. * g++.dg/ext/mv23.C: Likewise. libgcc/ PR target/65612 * config.host (tmake_file): Add t-slibgcc-libgcc for Linux/x86. * config/i386/cpuinfo.c (__cpu_model): Initialize. (__cpu_indicator_init@GCC_4.8.0): New. (__cpu_model@GCC_4.8.0): Likewise. * config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Add -DUSE_ELF_SYMVER. From-SVN: r222178 |
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| .. | ||
| config | ||
| soft-fp | ||
| ChangeLog | ||
| config.host | ||
| config.in | ||
| configure | ||
| configure.ac | ||
| crtstuff.c | ||
| dfp-bit.c | ||
| dfp-bit.h | ||
| divmod.c | ||
| empty.mk | ||
| emutls.c | ||
| enable-execute-stack-empty.c | ||
| enable-execute-stack-mprotect.c | ||
| find-symver.awk | ||
| fixed-bit.c | ||
| fixed-bit.h | ||
| fixed-obj.mk | ||
| floatunsidf.c | ||
| floatunsisf.c | ||
| floatunsitf.c | ||
| floatunsixf.c | ||
| fp-bit.c | ||
| fp-bit.h | ||
| gbl-ctors.h | ||
| gen-fixed.sh | ||
| generic-morestack-thread.c | ||
| generic-morestack.c | ||
| generic-morestack.h | ||
| gstdint.h | ||
| gthr-posix.h | ||
| gthr-single.h | ||
| gthr.h | ||
| libgcc2.c | ||
| libgcc2.h | ||
| libgcc-std.ver.in | ||
| libgcov-driver-system.c | ||
| libgcov-driver.c | ||
| libgcov-interface.c | ||
| libgcov-merge.c | ||
| libgcov-profiler.c | ||
| libgcov-util.c | ||
| libgcov.h | ||
| Makefile.in | ||
| memcmp.c | ||
| memcpy.c | ||
| memmove.c | ||
| memset.c | ||
| mkheader.sh | ||
| mkmap-flat.awk | ||
| mkmap-symver.awk | ||
| offloadstuff.c | ||
| shared-object.mk | ||
| siditi-object.mk | ||
| static-object.mk | ||
| sync.c | ||
| udivmod.c | ||
| udivmodsi4.c | ||
| unwind-arm-common.inc | ||
| unwind-c.c | ||
| unwind-compat.c | ||
| unwind-compat.h | ||
| unwind-dw2-fde-compat.c | ||
| unwind-dw2-fde-dip.c | ||
| unwind-dw2-fde.c | ||
| unwind-dw2-fde.h | ||
| unwind-dw2.c | ||
| unwind-dw2.h | ||
| unwind-generic.h | ||
| unwind-pe.h | ||
| unwind-seh.c | ||
| unwind-sjlj.c | ||
| unwind.inc | ||
| vtv_end_preinit.c | ||
| vtv_end.c | ||
| vtv_start_preinit.c | ||
| vtv_start.c | ||