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Simon Marchi 2e6711003b Pass existing_cu object to cutu_reader
It is possible, seemingly for a special case described in
find_partial_die, for cutu_reader to re-use an existing dwarf2_cu
instead of creating a new one.  This happens when running this test, for
example:

    make check TESTS="gdb.dwarf2/fission-reread.exp"

Right now the, `use_existing_cu` flag tells cutu_reader to use the
dwarf2_cu object at dwarf2_per_cu_data::cu.  However, we'll remove that
field, so we need to find another solution.

This situation arises when some caller up the stack has already created
the dwarf2_cu to read a dwarf2_per_cu_data, but needs to re-read it with
some other parameters.  Therefore, it's possible to just have that
caller pass down the dwarf2_cu object to use as a `existing_cu`
parameter.  If `existing_cu` is NULL, it tells cutu_reader that it needs
to instantiate a new one.

gdb/ChangeLog:

	* dwarf2/read.c (class cutu_reader) <cutu_reader>: Replace
	`int use_existing_cu` parameter with `dwarf2_cu *existing_cu`.
	(init_tu_and_read_dwo_dies): Likewise.
	(cutu_reader::init_tu_and_read_dwo_dies): Likewise.
	(cutu_reader::cutu_reader): Likewise.
	(load_partial_comp_unit): Likewise.
	(process_psymtab_comp_unit): Update.
	(build_type_psymtabs_1): Update.
	(process_skeletonless_type_unit): Update.
	(load_full_comp_unit): Update.
	(find_partial_die): Update.
	(dwarf2_read_addr_index): Update.
	(read_signatured_type): Update.

Change-Id: Id03e3bc3de3cf99d9e4b4080ad83b029c93bf434
2020-05-27 11:19:40 -04:00
bfd ld: Add --warn-textrel and obsolete --warn-shared-textrel 2020-05-27 04:54:10 -07:00
binutils ar many_files test 2020-05-23 14:56:07 +09:30
config Sync config with GCC 2020-05-16 06:07:12 -07:00
contrib contrib: Update dg-extract-results.* from gcc 2020-05-15 11:41:22 +01:00
cpu Replace "if (x) free (x)" with "free (x)", opcodes 2020-05-21 10:45:33 +09:30
elfcpp Add markers for 2.34 branch to the NEWS files and ChangeLogs. 2020-01-18 13:50:25 +00:00
etc texi2pod.pl: import support for @t{...} from gcc 2020-01-15 12:58:09 -05:00
gas gas: Adjust x86 tests for PECOFF 2020-05-26 14:18:08 -07:00
gdb Pass existing_cu object to cutu_reader 2020-05-27 11:19:40 -04:00
gdbserver Use construct_inferior_arguments which handles special chars 2020-05-25 11:40:00 -04:00
gdbsupport gdbsupport: Drop now unused function 'stringify_argv' 2020-05-25 11:40:35 -04:00
gnulib gdb: update gnulib import 2020-02-22 20:37:18 -05:00
gold PowerPC: downgrade FP mismatch error for shared libraries to a warning 2020-05-22 13:32:51 +09:30
gprof Replace "if (x) free (x)" with "free (x)", gprof 2020-05-21 10:45:33 +09:30
include ld: Add --warn-textrel and obsolete --warn-shared-textrel 2020-05-27 04:54:10 -07:00
intl Regen with blessed automake-1.15.1 2020-02-20 13:02:24 +10:30
ld ld: Add --warn-textrel and obsolete --warn-shared-textrel 2020-05-27 04:54:10 -07:00
libctf libctf: Mark bswap_identity_64 inline function as static. 2020-03-11 17:48:49 +10:30
libdecnumber
libiberty Sync config and libiberty with GCC 2020-05-12 18:37:03 -07:00
opcodes Fix extraction of signed constants in nios2 disassembler (again). 2020-05-26 23:23:03 -07:00
readline Fix compilation of Readline on mingw.org's MinGW 2019-12-23 16:28:32 +02:00
sim sim: ppc: netbsd: Sync signal names with NetBSD 9.99.49 2020-03-12 16:07:37 +01:00
texinfo
zlib Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
.cvsignore
.gitattributes
.gitignore Add profiling outputs to .gitignore 2019-12-26 06:54:58 +01:00
ar-lib
ChangeLog Since the pdp11-aout target does not support gdb, gdbserver or gprof these should be excluded in configure. 2020-04-21 10:27:50 +01:00
compile
config-ml.in
config.guess Update top level config files with copies from the official repository. 2020-01-18 13:43:19 +00:00
config.rpath
config.sub Update top level config files with copies from the official repository. 2020-01-18 13:43:19 +00:00
configure Since the pdp11-aout target does not support gdb, gdbserver or gprof these should be excluded in configure. 2020-04-21 10:27:50 +01:00
configure.ac Since the pdp11-aout target does not support gdb, gdbserver or gprof these should be excluded in configure. 2020-04-21 10:27:50 +01:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS Move gdbserver to top level 2020-02-07 08:42:25 -07:00
Makefile.def Change gdbserver to use existing gdbsupport 2020-03-12 13:32:16 -06:00
Makefile.in Change gdbserver to use existing gdbsupport 2020-03-12 13:32:16 -06:00
Makefile.tpl Revert "Sync top level files with versions from gcc." 2019-05-30 11:17:19 +01:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode
setup.com
src-release.sh Move gdbserver to top level 2020-02-07 08:42:25 -07:00
symlink-tree
test-driver
ylwrap

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