cpp-cgdb-cgdb-struct-to-pointer

Interesting case of which nodes of different kinds should be allowed to map to each other

Before…lines 1–377 unchanged (377 lines)
378static void disassemble_func(void *context,
379        uint64_t addr_start, uint64_t addr_end, bool error,
380        const std::list<std::string> &disasm);
381static void disassemble_pc(void *context,
382        uint64_t addr_start, uint64_t addr_end, bool error,
383        const std::list<std::string> &disasm);
384            
385tgdb_callbacks callbacks = { 
386    NULL,       
387    console_output,
388    command_response,
389    breakpoints,
390    inferiors_source_files,
391    disassemble_func,
392    disassemble_pc
393};
394
395
396/* start_gdb: Starts up libtgdb
397 *  Returns:  -1 on error, 0 on success
398 */
399static int start_gdb(int argc, char *argv[])
…lines 400–494 unchanged (95 lines)
495{
496    source_set_breakpoints(if_get_sview(), breakpoints);
497    if_show_file(NULL, 0, 0);
498}
499
500/* This means a source file or line number changed */
501static void update_file_position(struct tgdb_response *response)
502{
503    /**
504     * Updating the location that cgdb should point the user to.
505     *
506     * A variety of different locations can come back from gdb.
507     * We currently have the following fields of interest:
…lines 508–515 unchanged (8 lines)
516     * So currently, our best bet is to
517     * - show the file/line
518     * - if file/line unavailable, show the function disassembly
519     * - if function disassembly unavailable, show disassembly
520     * - if disassembly unavailable, show nothing
521     */
522    struct tgdb_file_position *tfp;
523    struct sviewer *sview = if_get_sview();
524    int source_reload_status = -1;
525
526    tfp = response->choice.update_file_position.file_position;
527    
528    /* Tell source viewer what the current $pc address is. */
529    sview->addr_frame = tfp->addr;
530
531    /* If we got a pathname and we're not showing disasm... */
532    if (tfp->path && !cgdbrc_get_int(CGDBRC_DISASM)) {
533
534        /**
535         * GDB will provide an executing line number even when the program
536         * has not been started yet. Checking the frame address as well
537         * helps cgdb to not show an executing line unless there is a stack,
538         * which tells us the inferior is running.
539         */
540        int exe_line = sview->addr_frame ? tfp->line_number : -1;
541
542        /* Update the file */
543        source_reload_status = 
544            source_reload(if_get_sview(), tfp->path, 0);
545
546        /* Show the source file at this line number */
547        if_show_file(tfp->path, tfp->line_number, exe_line);
548    }
549
550    /**
551     * Sometimes gdb provides a path that can not be found
552     * on disk. For instance, for glibc where the source isn't
553     * available. In this scenario, show the assembly instead.
…lines 554–666 unchanged (113 lines)
667}
668
669static void command_response(void *context, struct tgdb_response *response)
670{
671    switch (response->header)
672    {
673    case TGDB_UPDATE_FILE_POSITION:
674        update_file_position(response);
675        break;
676    case TGDB_QUIT:
677        new_ui_unsupported = response->choice.quit.new_ui_unsupported;
678        cgdb_cleanup_and_exit(0);
679        break;
680    }
681}
…lines 682–701 unchanged (20 lines)
702static void disassemble_pc(void *context,
703        uint64_t addr_start, uint64_t addr_end, bool error,
704        const std::list<std::string> &disasm)
705{
706    update_disassemble(true, addr_start, addr_end, error, disasm);
707}
708
709/* gdb_input: Receives data from tgdb:
710 *
711 *  Returns:  -1 on error, 0 on success
712 */
713static int gdb_input(int fd)
714{
…lines 715–1186 unchanged (472 lines)

After…lines 1–377 unchanged (377 lines)
378static void disassemble_func(void *context,
379        uint64_t addr_start, uint64_t addr_end, bool error,
380        const std::list<std::string> &disasm);
381static void disassemble_pc(void *context,
382        uint64_t addr_start, uint64_t addr_end, bool error,
383        const std::list<std::string> &disasm);
384static
385void update_file_pos(void *context,
386        const tgdb_file_position &file_position);
387            
388tgdb_callbacks callbacks = { 
389    NULL,       
390    console_output,
391    command_response,
392    breakpoints,
393    inferiors_source_files,
394    disassemble_func,
395    disassemble_pc,
396    update_file_pos
397};
398
399
400/* start_gdb: Starts up libtgdb
401 *  Returns:  -1 on error, 0 on success
402 */
…lines 403–498 unchanged (96 lines)
499{
500    source_set_breakpoints(if_get_sview(), breakpoints);
501    if_show_file(NULL, 0, 0);
502}
503
504/* This means a source file or line number changed */
505static void update_file_position(const tgdb_file_position &tfp)
506{
507    /**
508     * Updating the location that cgdb should point the user to.
509     *
510     * A variety of different locations can come back from gdb.
511     * We currently have the following fields of interest:
…lines 512–519 unchanged (8 lines)
520     * So currently, our best bet is to
521     * - show the file/line
522     * - if file/line unavailable, show the function disassembly
523     * - if function disassembly unavailable, show disassembly
524     * - if disassembly unavailable, show nothing
525     */
526    struct sviewer *sview = if_get_sview();
527    int source_reload_status = -1;
528
529    /* Tell source viewer what the current $pc address is. */
530    sview->addr_frame = tfp.addr;
531
532    /* If we got a pathname and we're not showing disasm... */
533    if (tfp.path && !cgdbrc_get_int(CGDBRC_DISASM)) {
534
535        /**
536         * GDB will provide an executing line number even when the program
537         * has not been started yet. Checking the frame address as well
538         * helps cgdb to not show an executing line unless there is a stack,
539         * which tells us the inferior is running.
540         */
541        int exe_line = sview->addr_frame ? tfp.line_number : -1;
542
543        /* Update the file */
544        source_reload_status = 
545            source_reload(if_get_sview(), tfp.path, 0);
546
547        /* Show the source file at this line number */
548        if_show_file(tfp.path, tfp.line_number, exe_line);
549    }
550
551    /**
552     * Sometimes gdb provides a path that can not be found
553     * on disk. For instance, for glibc where the source isn't
554     * available. In this scenario, show the assembly instead.
…lines 555–667 unchanged (113 lines)
668}
669
670static void command_response(void *context, struct tgdb_response *response)
671{
672    switch (response->header)
673    {
674    case TGDB_QUIT:
675        new_ui_unsupported = response->choice.quit.new_ui_unsupported;
676        cgdb_cleanup_and_exit(0);
677        break;
678    }
679}
680
…lines 681–700 unchanged (20 lines)
701        uint64_t addr_start, uint64_t addr_end, bool error,
702        const std::list<std::string> &disasm)
703{
704    update_disassemble(true, addr_start, addr_end, error, disasm);
705}
706
707static void update_file_pos(void *context,
708        const tgdb_file_position &file_position)
709{
710    update_file_position(file_position);
711}
712
713/* gdb_input: Receives data from tgdb:
714 *
715 *  Returns:  -1 on error, 0 on success
716 */
717static int gdb_input(int fd)
…lines 718–1190 unchanged (473 lines)

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comment "/* HAVE_CONFIG_H */"

preproc_ifdef

#ifdef "#ifdef"

identifier "HAVE_SYS_TYPES_H"

preproc_include

#include "#include"

system_lib_string "<sys/types.h>"

#endif "#endif"

comment "/* HAVE_SYS_TYPES_H */"

preproc_ifdef

#ifdef "#ifdef"

identifier "HAVE_FCNTL_H"

preproc_include

#include "#include"

system_lib_string "<fcntl.h>"

#endif "#endif"

comment "/* HAVE_FCNTL_H */"

preproc_if

#if "#if"

identifier "HAVE_UNISTD_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<unistd.h>"

#endif "#endif"

comment "/* HAVE_UNISTD_H */"

preproc_if

#if "#if"

identifier "HAVE_SIGNAL_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<signal.h>"

#endif "#endif"

preproc_if

#if "#if"

identifier "HAVE_STDLIB_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<stdlib.h>"

#endif "#endif"

comment "/* HAVE_STDLIB_H */"

preproc_if

#if "#if"

identifier "HAVE_STDIO_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<stdio.h>"

#endif "#endif"

comment "/* HAVE_STDIO_H */"

preproc_ifdef

#ifdef "#ifdef"

identifier "HAVE_SYS_TIME_H"

preproc_include

#include "#include"

system_lib_string "<sys/time.h>"

#endif "#endif"

preproc_ifdef

#ifdef "#ifdef"

identifier "HAVE_SYS_SELECT_H"

preproc_include

#include "#include"

system_lib_string "<sys/select.h>"

#endif "#endif"

comment "/* HAVE_SYS_SELECT_H */"

preproc_if

#if "#if"

identifier "HAVE_SYS_STAT_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<sys/stat.h>"

#endif "#endif"

preproc_if

#if "#if"

identifier "HAVE_STRING_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<string.h>"

#endif "#endif"

comment "/* HAVE_STRING_H */"

preproc_if

#if "#if"

identifier "HAVE_SYS_IOCTL_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<sys/ioctl.h>"

#endif "#endif"

comment "/* HAVE_SYS_IOCTL_H */"

preproc_if

#if "#if"

identifier "HAVE_ERRNO_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<errno.h>"

#endif "#endif"

comment "/* HAVE_ERRNO_H */"

preproc_ifdef

#ifdef "#ifdef"

identifier "HAVE_GETOPT_H"

preproc_include

#include "#include"

system_lib_string "<getopt.h>"

#endif "#endif"

preproc_if

#if "#if"

identifier "HAVE_CTYPE_H"

"\n"

preproc_include

#include "#include"

system_lib_string "<ctype.h>"

#endif "#endif"

preproc_include

#include "#include"

system_lib_string "<string>"

preproc_def

#define "#define"

identifier "__STDC_FORMAT_MACROS"

preproc_include

#include "#include"

system_lib_string "<inttypes.h>"

comment "/* Local Includes */"

preproc_include

#include "#include"

string_literal

" "\""

string_content "sys_util.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "stretchy.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "sys_win.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "cgdb.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "tokenizer.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "highlight_groups.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "interface.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "scroller.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "sources.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "tgdb.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "kui_ctx.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "kui_map_set.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "kui_term.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "kui_manager.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "fs_util.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "cgdbrc.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "io.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "fork_util.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "terminal.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "rline.h"

" "\""

preproc_include

#include "#include"

string_literal

" "\""

string_content "usage.h"

" "\""

comment "/* --------- */"

comment "/* Constants */"

comment "/* --------- */"

preproc_def

#define "#define"

identifier "GDB_MAXBUF"

preproc_arg "4096 "

comment "/* GDB input buffer size */"

comment "/* --------------- */"

comment "/* Local Variables */"

comment "/* --------------- */"

declaration

struct_specifier

struct "struct"

type_identifier "tgdb"

pointer_declarator

* "*"

identifier "tgdb"

; ";"

comment "/* The main TGDB context */"

declaration

qualified_identifier

namespace_identifier "std"

:: "::"

type_identifier "string"

identifier "cgdb_home_dir"

; ";"

comment "/* Path to home dir with trailing slash */"

declaration

qualified_identifier

namespace_identifier "std"

:: "::"

type_identifier "string"

identifier "cgdb_log_dir"

; ";"

comment "/* Path to log dir with trailing slash */"

declaration

storage_class_specifier

static "static"

primitive_type "int"

init_declarator

identifier "gdb_console_fd"

= "="

number_literal "-1"

; ";"

comment "/* GDB console descriptor */"

declaration

storage_class_specifier

static "static"

primitive_type "int"

init_declarator

identifier "gdb_mi_fd"

= "="

number_literal "-1"

; ";"

comment "/* GDB Machine Interface descriptor */"

declaration

storage_class_specifier

static "static"

primitive_type "bool"

init_declarator

identifier "new_ui_unsupported"

= "="

false "false"

; ";"

declaration

storage_class_specifier

static "static"

primitive_type "char"

init_declarator

pointer_declarator

* "*"

identifier "debugger_path"

= "="

null

NULL "NULL"

; ";"

comment "/* Path to debugger to use */"

comment "/* Set to 1 if the user requested cgdb to wait for the debug"...

declaration

storage_class_specifier

static "static"

primitive_type "int"

init_declarator

identifier "wait_for_debugger_to_attach"

= "="

number_literal "0"

; ";"

declaration

qualified_identifier

namespace_identifier "std"

:: "::"

template_type

type_identifier "unique_ptr"

template_argument_list

< "<"

type_descriptor

type_identifier "kui_manager"

> ">"

identifier "kui_ctx"

; ";"

comment "/* The key input package */"

declaration

qualified_identifier

namespace_identifier "std"

:: "::"

template_type

type_identifier "shared_ptr"

template_argument_list

< "<"

type_descriptor

type_identifier "kui_map_set"

> ">"

identifier "kui_map"

; ";"

declaration

qualified_identifier

namespace_identifier "std"

:: "::"

template_type

type_identifier "shared_ptr"

template_argument_list

< "<"

type_descriptor

type_identifier "kui_map_set"

> ">"

identifier "kui_imap"

; ";"

comment "/**\n * This allows CGDB to know if it is acceptable to read "...

declaration

primitive_type "int"

init_declarator

identifier "kui_input_acceptable"

= "="

number_literal "1"

; ";"

comment "/**\n * This pipe is used for passing SIGWINCH from the handl"...

declaration

primitive_type "int"

init_declarator

array_declarator

identifier "resize_pipe"

[ "["

number_literal "2"

] "]"

= "="

initializer_list

{ "{"

number_literal "-1"

, ","

number_literal "-1"

} "}"

; ";"

comment "/**\n * This pipe is used for passing signals from the handle"...

declaration

primitive_type "int"

init_declarator

array_declarator

identifier "signal_pipe"

[ "["

number_literal "2"

] "]"

= "="

initializer_list

{ "{"

number_literal "-1"

, ","

number_literal "-1"

} "}"

; ";"

comment "/* Original terminal attributes */"

declaration

storage_class_specifier

static "static"

struct_specifier

struct "struct"

type_identifier "termios"

identifier "term_attributes"

; ";"

comment "/**\n * Runs a command in the shell. The shell may be intera"...

function_definition (+212 nodes collapsed)

function_definition (+47 nodes collapsed)

comment "/* ------------------------ */"

comment "/* Initialization functions */"

comment "/* ------------------------ */"

comment "/* version_info: Returns version information about cgdb.\n * "...

function_definition (+82 nodes collapsed)

function_definition (+506 nodes collapsed)

comment "/**\n * Attempts to create a config directory in the user's h"...

function_definition (+189 nodes collapsed)

comment "/**\n * Console output has returned from GDB, show it.\n *\n * "...

function_definition (+43 nodes collapsed)

declaration (+23 nodes collapsed)

declaration (+32 nodes collapsed)

declaration (+35 nodes collapsed)

declaration (+47 nodes collapsed)

declaration

storage_class_specifier

static "static"

primitive_type "void"

function_declarator

identifier "update_file_pos"

parameter_list

( "("

parameter_declaration

primitive_type "void"

pointer_declarator

* "*"

identifier "context"

, ","

parameter_declaration

type_qualifier

const "const"

type_identifier "tgdb_file_position"

reference_declarator

& "&"

identifier "file_position"

) ")"

; ";"

declaration

type_identifier "tgdb_callbacks"

init_declarator

identifier "callbacks"

= "="

initializer_list

{ "{"

null

NULL "NULL"

, ","

identifier "console_output"

, ","

identifier "command_response"

, ","

identifier "breakpoints"

, ","

identifier "inferiors_source_files"

, ","

identifier "disassemble_func"

, ","

identifier "disassemble_pc"

, ","

identifier "update_file_pos"

} "}"

; ";"

comment "/* start_gdb: Starts up libtgdb\n * Returns: -1 on error, 0"...

function_definition (+62 nodes collapsed)

function_definition (+41 nodes collapsed)

comment "/* user_input: This function will get a key from the user an"...

function_definition (+317 nodes collapsed)

comment "/**\n * This will usually process all the input that the KUI "...

function_definition (+80 nodes collapsed)

comment "/* This updates all the breakpoints */"

function_definition (+55 nodes collapsed)

comment "/* This means a source file or line number changed */"

function_definition

storage_class_specifier

static "static"

primitive_type "void"

function_declarator

identifier "update_file_position"

parameter_list

( "("

parameter_declaration

type_qualifier

const "const"

type_identifier "tgdb_file_position"

reference_declarator

& "&"

identifier "tfp"

) ")"

compound_statement

{ "{"

comment "/**\n * Updating the location that cgdb should point the "...

declaration

struct_specifier

struct "struct"

type_identifier "sviewer"

init_declarator

pointer_declarator

* "*"

identifier "sview"

= "="

call_expression

identifier "if_get_sview"

argument_list

( "("

) ")"

; ";"

declaration

primitive_type "int"

init_declarator

identifier "source_reload_status"

= "="

number_literal "-1"

; ";"

comment "/* Tell source viewer what the current $pc address is. */"

expression_statement

assignment_expression

field_expression

identifier "sview"

-> "->"

field_identifier "addr_frame"

= "="

field_expression

identifier "tfp"

. "."

field_identifier "addr"

; ";"

comment "/* If we got a pathname and we're not showing disasm... */"

if_statement

if "if"

condition_clause

( "("

binary_expression

field_expression

identifier "tfp"

. "."

field_identifier "path"

&& "&&"

unary_expression

! "!"

call_expression

identifier "cgdbrc_get_int"

argument_list

( "("

identifier "CGDBRC_DISASM"

) ")"

compound_statement

{ "{"

comment "/**\n * GDB will provide an executing line number eve"...

declaration

primitive_type "int"

init_declarator

identifier "exe_line"

= "="

conditional_expression

field_expression

identifier "sview"

-> "->"

field_identifier "addr_frame"

? "?"

field_expression

identifier "tfp"

. "."

field_identifier "line_number"

: ":"

number_literal "-1"

; ";"

comment "/* Update the file */"

expression_statement

assignment_expression

identifier "source_reload_status"

= "="

call_expression

identifier "source_reload"

argument_list

( "("

call_expression

identifier "if_get_sview"

argument_list

( "("

) ")"

, ","

field_expression

identifier "tfp"

. "."

field_identifier "path"

, ","

number_literal "0"

) ")"

; ";"

comment "/* Show the source file at this line number */"

expression_statement

call_expression

identifier "if_show_file"

argument_list

( "("

field_expression

identifier "tfp"

. "."

field_identifier "path"

, ","

field_expression

identifier "tfp"

. "."

field_identifier "line_number"

, ","

identifier "exe_line"

) ")"

; ";"

} "}"

comment "/**\n * Sometimes gdb provides a path that can not be fou"...

if_statement (+93 nodes collapsed)

} "}"

comment "/* This is a list of all the source files */"

function_definition (+217 nodes collapsed)

function_definition (+382 nodes collapsed)

function_definition

storage_class_specifier

static "static"

primitive_type "void"

function_declarator

identifier "command_response"

parameter_list

( "("

parameter_declaration

primitive_type "void"

pointer_declarator

* "*"

identifier "context"

, ","

parameter_declaration

struct_specifier

struct "struct"

type_identifier "tgdb_response"

pointer_declarator

* "*"

identifier "response"

) ")"

compound_statement

{ "{"

switch_statement

switch "switch"

condition_clause

( "("

field_expression

identifier "response"

-> "->"

field_identifier "header"

) ")"

compound_statement

{ "{"

case_statement (+30 nodes collapsed)

} "}"

function_definition (+42 nodes collapsed)

function_definition (+45 nodes collapsed)

function_definition (+65 nodes collapsed)

function_definition

storage_class_specifier

static "static"

primitive_type "void"

function_declarator

identifier "update_file_pos"

parameter_list

( "("

parameter_declaration

primitive_type "void"

pointer_declarator

* "*"

identifier "context"

, ","

parameter_declaration

type_qualifier

const "const"

type_identifier "tgdb_file_position"

reference_declarator

& "&"

identifier "file_position"

) ")"

compound_statement

{ "{"

expression_statement

call_expression

identifier "update_file_position"

argument_list

( "("

identifier "file_position"

) ")"

; ";"

} "}"

comment "/* gdb_input: Receives data from tgdb:\n *\n * Returns: -1 o"...

function_definition (+66 nodes collapsed)

function_definition (+161 nodes collapsed)

comment "/**\n * Handles the signals that were received from the main "...

function_definition (+83 nodes collapsed)

function_definition (+536 nodes collapsed)

comment "/* ----------------- */"

comment "/* Exposed Functions */"

comment "/* ----------------- */"

comment "/* cgdb_cleanup_and_exit: Invoked by the various err_xxx fun"...

function_definition (+206 nodes collapsed)

function_definition (+50 nodes collapsed)

function_definition (+53 nodes collapsed)

function_definition (+47 nodes collapsed)

function_definition (+88 nodes collapsed)

function_definition (+258 nodes collapsed)

comment "/**\n * Create the log files.\n */"

function_definition (+120 nodes collapsed)

function_definition (+581 nodes collapsed)