splitdwarf osxMachoFile [ osxDsymFile ]
splitdwarf takes an executable produced by go build as input,
and uncompresses and copies the DWARF segment into a separate
file in the way that is expected by OSX-hosted tools
(lldb and ports of gdb).
If osxDsymFile is not named explicitly, the default of
"<osxMachoFile>.dSYM/Contents/Resources/DWARF/<osxMachoFile>"
is used instead, with directories created as needed.
If the input file contains no UUID, then one is created by
hashing non-DWARF segment contents, and added to the
executable. This is necessary because gdb and lldb both
expect matching UUIDs to be present in the executable
and its debugging symbols.
Includes a modified version of debug/macho, with additional
definitions and the ability to write segments, sections, and
some MachO load commands added.
Change-Id: Ia5b0e289260f72bbca392cdf2c7c0a75e3ca40e5
Reviewed-on: https://go-review.googlesource.com/c/143357
Reviewed-by: Austin Clements <austin@google.com>
The splitdwarf command will need a modified version of debug/macho.
This is a verbatim copy from std as of Go 1.11, which we'll modify in
the next CL.
Change-Id: Ia9ded870d1ba91dad21f9f6dc5bb38f9f6cc0e80
Reviewed-on: https://go-review.googlesource.com/c/152240
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>
