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This patch rewrites the .gdb_index reader to create the same data
structures that are created by the cooked indexer and the .debug_names
reader.
This is done in support of this series; but also because, from what I
can tell, the "templates.exp" change didn't really work properly with
this reader.
In addition to fixing that problem, this patch removes a lot of code.
Implementing this required a couple of hacks, as .gdb_index does not
contain all the information that's used by the cooked index
implementation.
* The index-searching code likes to differentiate between the various
DWARF tags when matching, but .gdb_index lumps many things into a
single "other" category. To handle this, we introduce a phony tag
that's used so that the match method can match on multiple domains.
* Similarly, .gdb_index doesn't distinguish between the type and
struct domains, so another phony tag is used for this.
* The reader must attempt to guess the language of various symbols.
This is somewhat finicky. "Plain" (unqualified) symbols are marked
as language_unknown and then a couple of hacks are used to handle
these -- one in expand_symtabs_matching and another when recognizing
"main".
For what it's worth, I consider .gdb_index to be near the end of its
life. While .debug_names is not perfect -- we found a number of bugs
in the standard while implementing it -- it is better than .gdb_index
and also better documented.
After this patch, we could conceivably remove dwarf_scanner_base.
However, I have not done this.
Finally, this patch also changes this reader to dump the content of
the index, as the other DWARF readers do. This can be handy when
debugging gdb.
Acked-By: Simon Marchi <simon.marchi@efficios.com>
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33316
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This updates the copyright headers to include 2025. I did this by
running gdb/copyright.py and then manually modifying a few files as
noted by the script.
Approved-By: Eli Zaretskii <eliz@gnu.org>
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I accidentally pushed my work-in-progress branch... revert that. Sorry
for the noise :(.
The list of commits reverted are:
ae2a50a9ae15 attempt to revamp to the CU/TU list
e9386435c94f gdb/dwarf: print DWARF CUs/TUs in "maint print objfiles"
6cbd64aa3eb0 gdb/dwarf: add dwarf_source_language_name
32a187da7622 libiberty: move DW_LANG_* definitions to dwarf2.def
b3fa38aef59d gdb/dwarf: move index unit vectors to debug names reader and use them
30ba74418982 gdb/dwarf: track comp and type units count
bedb4e09f292 gdb/dwarf: remove unnecessary braces
b4f18de12c77 gdb/dwarf: use ranged for loop in some pots
Change-Id: I80aed2847025f5b15c16c997680783b39858a703
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Add dwarf_source_language_name, to convert a DW_LANG_* constant to
string. This will be used in a following patch.
Change-Id: I552ebd318e2e770d590de5920edbd0b75075c1b7
Approved-By: Tom Tromey <tom@tromey.com>
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Now that defs.h, server.h and common-defs.h are included via the
`-include` option, it is no longer necessary for source files to include
them. Remove all the inclusions of these files I could find. Update
the generation scripts where relevant.
Change-Id: Ia026cff269c1b7ae7386dd3619bc9bb6a5332837
Approved-By: Pedro Alves <pedro@palves.net>
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This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
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This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
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This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
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I noticed that dwarf_unit_type_name is nearly identical to
get_DW_UT_name from libiberty; but rather than simply replacing it, it
seemed better to have it work like the other DWARF constant
stringification functions -- return a string showing unrecognized
numeric forms rather than nullptr. (The previous code did include
numeric values for the recognized constants, but this seems to be not
that useful to me.)
2021-03-18 Tom Tromey <tromey@adacore.com>
* dwarf2/stringify.c (dwarf_unit_type_name): New function. Use
get_DW_UT_name.
* dwarf2/stringify.h (dwarf_unit_type_name): Declare.
* dwarf2/comp-unit.c (dwarf_unit_type_name): Remove.
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This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
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This moves the DWARF debugging functions that stringify various
constants to a new file, dwarf2/stringify.c.
gdb/ChangeLog
2020-03-26 Tom Tromey <tom@tromey.com>
* dwarf2/read.c (dwarf_unit_type_name, dwarf_tag_name)
(dwarf_attr_name, dwarf_form_name, dwarf_bool_name)
(dwarf_type_encoding_name): Move to stringify.c.
* Makefile.in (COMMON_SFILES): Add dwarf2/stringify.c.
* dwarf2/stringify.c: New file.
* dwarf2/stringify.h: New file.
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