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Enable LLDB by default on amd64 and arm64

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LLDB is usable for userland core file and live debugging on amd64, and
for userland core file debugging on arm64. In general it works at least
as well on FreeBSD as our in-tree gdb version, so enable it by default
to allow for broader use and testing.

An LLDB tutorial is available at http://lldb.llvm.org/tutorial.html, and
a table mapping GDB commands to LLDB commands can be found at
http://lldb.llvm.org/lldb-gdb.html .

LLDB also has some level of support for FreeBSD on arm, mips, i386,
and powerpc, but is not yet ready to have them enabled by default.

Reviewed by:	gnn
Relnotes:	Yes
This commit is contained in:
Ed Maste 2015-12-16 19:23:10 +00:00
parent 35fad84fec
commit d0ba16f775
1 changed files with 5 additions and 1 deletions
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6
share/mk/src.opts.mk
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@ -180,7 +180,6 @@ __DEFAULT_NO_OPTIONS = \
DTRACE_TESTS \
EISA \
HESIOD \
LLDB \
NAND \
OFED \
OPENLDAP \
@ -240,6 +239,11 @@ BROKEN_OPTIONS+=PROFILE # "sorry, unimplemented: profiler support for RISC-V"
BROKEN_OPTIONS+=TESTS # "undefined reference to `_Unwind_Resume'"
BROKEN_OPTIONS+=CXX # "libcxxrt.so: undefined reference to `_Unwind_Resume_or_Rethrow'"
.endif
.if ${__T} == "aarch64" || ${__T} == "amd64"
__DEFAULT_YES_OPTIONS+=LLDB
.else
__DEFAULT_NO_OPTIONS+=LLDB
.endif
# LLVM lacks support for FreeBSD 64-bit atomic operations for ARMv4/ARMv5
.if ${__T} == "arm" || ${__T} == "armeb"
BROKEN_OPTIONS+=LLDB