Date: Fri, 17 Apr 2020 20:20:04 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r360054 - head/sys/conf Message-ID: <202004172020.03HKK4ex000862@repo.freebsd.org>
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Author: cem Date: Fri Apr 17 20:20:03 2020 New Revision: 360054 URL: https://svnweb.freebsd.org/changeset/base/360054 Log: xen-locore: Silence DWARF2 section warning Silence the "DWARF2 can only represent one section per compilation unit" warning in amd64 GENERIC builds by disabling Clang's debuginfo generation for this assembler file (-g0). The message is replaced by a warning from ctfconvert that there is no debuginfo to convert (future work). The file contains some metadata (several ELF notes) and some code. The code does not appear to have anything that debuginfo would aid. I looked at the generated debuginfo (readelf -w xen-locore.o) prior to this change, and the metadata that would be disabled are things like associated between binary offset and code line number (not especially useful with a disassembler), and label metadata for the entry points (not especially useful as this is already in the symbol table). Reviewed by: royger Differential Revision: https://reviews.freebsd.org/D24384 Modified: head/sys/conf/files.amd64 Modified: head/sys/conf/files.amd64 ============================================================================== --- head/sys/conf/files.amd64 Fri Apr 17 19:14:05 2020 (r360053) +++ head/sys/conf/files.amd64 Fri Apr 17 20:20:03 2020 (r360054) @@ -112,7 +112,8 @@ amd64/amd64/in_cksum.c optional inet | inet6 amd64/amd64/initcpu.c standard amd64/amd64/io.c optional io amd64/amd64/locore.S standard no-obj -amd64/amd64/xen-locore.S optional xenhvm +amd64/amd64/xen-locore.S optional xenhvm \ + compile-with "${NORMAL_S} -g0" amd64/amd64/machdep.c standard amd64/amd64/mem.c optional mem amd64/amd64/minidump_machdep.c standard
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