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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - libunwind fails to build on SPARC"
href="https://bugs.llvm.org/show_bug.cgi?id=50622">50622</a>
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<th>Summary</th>
<td>libunwind fails to build on SPARC
</td>
</tr>
<tr>
<th>Product</th>
<td>Runtime Libraries
</td>
</tr>
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<th>Version</th>
<td>12.0
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>libunwind
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>arfrever.fta@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
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<pre>libunwind (at least version 12.0.0) fails to build on SPARC.
Gentoo report: <a href="https://bugs.gentoo.org/794871">https://bugs.gentoo.org/794871</a>
<span class="quote">> [3/10] /usr/bin/sparc64-unknown-linux-gnu-gcc -Dunwind_shared_EXPORTS -I/var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/include -O2 -mcpu=ultrasparc -pipe -fPIC -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmismatched-tags -Wmissing-braces -Wno-unused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-suggest-override -Wno-error -pedantic -funwind-tables -nostdinc++ -DNDEBUG -fno-rtti -MD -MT src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o -MF src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o.d -o src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o -c /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S
> FAILED: src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o
> /usr/bin/sparc64-unknown-linux-gnu-gcc -Dunwind_shared_EXPORTS -I/var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/include -O2 -mcpu=ultrasparc -pipe -fPIC -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmismatched-tags -Wmissing-braces -Wno-unused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-suggest-override -Wno-error -pedantic -funwind-tables -nostdinc++ -DNDEBUG -fno-rtti -MD -MT src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o -MF src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o.d -o src/CMakeFiles/unwind_shared.dir/UnwindRegistersSave.S.o -c /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1007:43: warning: invoking macro GLUE2 argument 1: empty macro arguments are undefined in ISO C90 [-Wpedantic]
> 1007 | DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext)
> | ^
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1007:43: warning: invoking macro GLUE2 argument 1: empty macro arguments are undefined in ISO C90 [-Wpedantic]
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1007:43: warning: invoking macro GLUE2 argument 1: empty macro arguments are undefined in ISO C90 [-Wpedantic]
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1007:43: warning: invoking macro GLUE2 argument 1: empty macro arguments are undefined in ISO C90 [-Wpedantic]
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1110:46: warning: invoking macro GLUE2 argument 1: empty macro arguments are undefined in ISO C90 [-Wpedantic]
> 1110 | WEAK_ALIAS(__unw_getcontext, unw_getcontext)
> | ^
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1110:46: warning: invoking macro GLUE2 argument 1: empty macro arguments are undefined in ISO C90 [-Wpedantic]
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S: Assembler messages:
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1011: Error: detected global register use not covered by .register pseudo-op
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1011: Error: detected global register use not covered by .register pseudo-op
> /var/tmp/portage/sys-libs/llvm-libunwind-12.0.0/work/libunwind/src/UnwindRegistersSave.S:1011: Error: detected global register use not covered by .register pseudo-op</span ></pre>
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