Rainer Orth a99ebb88f8 libstdc++: Build libbacktrace and 19_diagnostics/stacktrace with -funwind-tables [PR111641] ... Several of the 19_diagnostics/stacktrace tests FAIL on Solaris/SPARC (32 and 64-bit), Solaris/x86 (32-bit only), and several other targets: FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++26 execution test FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++26 execution test FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++26 execution test FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++23 execution test FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++26 execution test As it turns out, both the copy of libbacktrace in libstdc++ and the testcases proper need to compiled with -funwind-tables, as is done for libbacktrace itself. This isn't an issue on Linux/x86_64 and Solaris/amd64 since 64-bit x86 always defaults to -funwind-tables. 32-bit x86 does, too, when -fomit-frame-pointer is enabled as on Linux/i686, but unlike Solaris/i386. So this patch always enables the option both for the libbacktrace copy and the testcases. Tested on i386-pc-solaris2.11, sparc-sun-solaris2.11, and x86_64-pc-linux-gnu. 2024-05-23 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> libstdc++-v3: PR libstdc++/111641 * src/libbacktrace/Makefile.am (AM_CFLAGS): Add -funwind-tables. * src/libbacktrace/Makefile.in: Regenerate. * testsuite/19_diagnostics/stacktrace/current.cc (dg-options): Add -funwind-tables. * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise. * testsuite/19_diagnostics/stacktrace/hash.cc: Likewise. * testsuite/19_diagnostics/stacktrace/output.cc: Likewise. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.		2024-05-29 10:08:07 +02:00
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stacktrace	libstdc++: Build libbacktrace and 19_diagnostics/stacktrace with -funwind-tables [PR111641]	2024-05-29 10:08:07 +02:00
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