gdb: backport an upstream patch to support fission with split debug.
The upstream patch was
Author: Doug Evans <firstname.lastname@example.org>
Date: Tue May 3 16:30:58 2016 -0700
PR symtab/19914 fix handling of dwp + split debug
* dwarf2read.c (open_and_init_dwp_file): Look at backlink if
objfile is separate debug file.
* gdb.dwarf2/dwp-sepdebug.c: New file.
* gdb.dwarf2/dwp-sepdebug.exp: New file.
TEST=build chrome with debug fission and put the .dwp file in the debug
dir. gdb can read debug information from there.
3 files changed