sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Adjust db_flush_line() definition to avoid clang 15 warning

With clang 15, the following -Werror warnings is produced:

sys/ddb/db_lex.c:94:14: error: a function declaration without a prototype

Adjust db_flush_line() definition to avoid clang 15 warning

With clang 15, the following -Werror warnings is produced:

sys/ddb/db_lex.c:94:14: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
db_flush_line()
^
void

This is because db_flush_line() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after: 3 days

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ddb: just move cursor when the lexer backs up

Get rid of db_look_char because it's not compatible with db_get_line().
This fixes the following issue:

db> script lockinfo=show alllocks
db> run locki

ddb: just move cursor when the lexer backs up

Get rid of db_look_char because it's not compatible with db_get_line().
This fixes the following issue:

db> script lockinfo=show alllocks
db> run lockinfo
db:0:lockinfo> how alllocks
No such command; use "help" to list available commands

Reported by: markj
Reviewed by: markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D28725

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Merge ^/head r351732 through r352104.

ddb(4): Add some support for lexing IPv6 addresses

Allow commands to specify that (hex) numbers may start with A-F, by adding
the DRT_HEX flag for db_read_token_flags(). As before, numbers containi

ddb(4): Add some support for lexing IPv6 addresses

Allow commands to specify that (hex) numbers may start with A-F, by adding
the DRT_HEX flag for db_read_token_flags(). As before, numbers containing
invalid digits for the current radix are rejected.

Also, lex ':' and '::' tokens as tCOLON and tCOLONCOLON respectively.

There is a mild conflict here with lexed "identifiers" (tIDENT): ddb
identifiers may contain arbitrary colons, and the ddb lexer is greedy. So
the identifier lex will swallow any colons it finds inside identifiers, and
consumers are still unable to expect the token sequence 'tIDENT tCOLON'.
That limitation does not matter for IPv6 addresses, because the lexer always
attempts to lex numbers before identifiers.

Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D21509

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ddb(4): Enhance lexer functionality for specialized commands

Add a db_read_token_flags() variant of db_read_token() with configurable
parameters.

Allow specifying an explicit radix for tNUMBER lexi

ddb(4): Enhance lexer functionality for specialized commands

Add a db_read_token_flags() variant of db_read_token() with configurable
parameters.

Allow specifying an explicit radix for tNUMBER lexing. It overrides the
default inference and db_radix setting.

Also provide the option of yielding any lexed whitespace (tWSPACE) (instead
of ignoring it). This is useful for whitespace-sensitive CS_OWN commands.

Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D21459

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SPDX: Consider code from Carnegie-Mellon University.

Interesting cases, most likely from CMU Mach sources.

Add a small set of logical operators to DDB command language.

This are based on Mach3.
Documentation is pending but has been promised.

Submitted by: Dan Partelly
Reviewed by: adrian, jhb (older ver

Add a small set of logical operators to DDB command language.

This are based on Mach3.
Documentation is pending but has been promised.

Submitted by: Dan Partelly
Reviewed by: adrian, jhb (older version)

Differential Revision: https://reviews.freebsd.org/D4230
RelNotes: yes

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Merge from head@274682

Sync to HEAD@r274095.

Reintegrate head@r273095

Sponsored by: The FreeBSD Foundation

IFC @r273066

ddb: ANSI-fy function declarations.

MFC after: 5 days

Add a simple scripting facility to DDB(4), allowing the user to
define a set of named scripts. Each script consists of a list of DDB
commands separated by ";"s that will be executed verbatim. No hi

Add a simple scripting facility to DDB(4), allowing the user to
define a set of named scripts. Each script consists of a list of DDB
commands separated by ";"s that will be executed verbatim. No higher
level language constructs, such as branching, are provided for:
scripts are executed by sequentially injecting commands into the DDB
input buffer.

Four new commands are present in DDB: "run" to run a specific script,
"script" to define or print a script, "scripts" to list currently
defined scripts, and "unscript" to delete a script, modeled on shell
alias commands. Scripts may also be manipulated using sysctls in the
debug.ddb.scripting MIB space, although users will prefer to use the
soon-to-be-added ddb(8) tool for usability reasons.

Scripts with certain names are automatically executed on various DDB
events, such as entering the debugger via a panic, a witness error,
watchdog, breakpoint, sysctl, serial break, etc, allowing customized
handling.

MFC after: 3 months

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Start each of the license/copyright comments with /*-

Use __FBSDID().

Remove __P.

Allow '.' in identifiers - some ia64 register names contain '.'.

$Id$ -> $FreeBSD$

Fixed bogus type of valuep in struct db_variable. It was `int *' and
became `long *' for alpha, but should always have been `db_expr_t *'.
Fixed variable types to match.

Make db_tok_number a long to allow typing 64bit numbers on alpha.

This commit fixes various 64bit portability problems required for
FreeBSD/alpha. The most significant item is to change the command
argument to ioctl functions from int to u_long. This change bring

This commit fixes various 64bit portability problems required for
FreeBSD/alpha. The most significant item is to change the command
argument to ioctl functions from int to u_long. This change brings us
inline with various other BSD versions. Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.

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Removed unused #includes.

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.