mirror of git://gcc.gnu.org/git/gcc.git
278 lines
8.2 KiB
Plaintext
278 lines
8.2 KiB
Plaintext
Consider compiling test.c, with this content:
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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
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#include "test.h"
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int
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main (int argc, char **argv)
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{
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int a = PLUS (1,2);
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int b = PLUS (3,4);
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return 0;
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}
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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...where test.h has this content:
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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
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extern int foo ();
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#define PLUS(A, B) A + B
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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The undocumented -fdump-internal-locations option outputs this information
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to stderr, showing what each location_t value means. Source code
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lines are quoted, showing both per-line location_t values and
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per-line&column location_t values (written vertically under the
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corresponding character of source code).
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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
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RESERVED LOCATIONS
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location_t interval: 0 <= loc < 2
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ORDINARY MAP: 0
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location_t interval: 32 <= loc < 64
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file: test.c
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starting at line: 1
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column and range bits: 12
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column bits: 7
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range bits: 5
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reason: 0 (LC_ENTER)
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included from location: 0
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test.c: 1|loc: 32|#include "test.h"
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|69269258258148147
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|46802468024680246
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ORDINARY MAP: 1
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location_t interval: 64 <= loc < 96
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file: <built-in>
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starting at line: 0
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column and range bits: 0
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column bits: 0
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range bits: 0
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reason: 2 (LC_RENAME)
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included from location: 0
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ORDINARY MAP: 2
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location_t interval: 96 <= loc < 128
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file: <command-line>
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starting at line: 0
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column and range bits: 0
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column bits: 0
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range bits: 0
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reason: 2 (LC_RENAME)
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included from location: 0
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ORDINARY MAP: 3
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location_t interval: 128 <= loc < 250240
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file: /usr/include/stdc-predef.h
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starting at line: 1
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column and range bits: 12
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column bits: 7
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range bits: 5
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reason: 0 (LC_ENTER)
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included from location: 127 (in ordinary map 2)
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(contents of /usr/include/stdc-predef.h snipped for brevity)
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ORDINARY MAP: 4
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location_t interval: 250240 <= loc < 250272
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file: <command-line>
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starting at line: 32
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column and range bits: 12
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column bits: 7
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range bits: 5
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reason: 1 (LC_LEAVE)
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included from location: 0
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ORDINARY MAP: 5
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location_t interval: 250272 <= loc < 254368
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file: test.c
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starting at line: 1
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column and range bits: 12
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column bits: 7
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range bits: 5
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reason: 2 (LC_RENAME)
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included from location: 0
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test.c: 1|loc:250272|#include "test.h"
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|00000000000000000
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|33344445556667778
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|03603692692582581
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|46802468024680246
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ORDINARY MAP: 6
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location_t interval: 254368 <= loc < 266720
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file: test.h
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starting at line: 1
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column and range bits: 12
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column bits: 7
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range bits: 5
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reason: 0 (LC_ENTER)
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included from location: 250272 (in ordinary map 5)
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test.h: 1|loc:254368|extern int foo ();
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|444444444444444444
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|444455566677788899
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|036926925825814814
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|024680246802468024
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test.h: 2|loc:258464|
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test.h: 3|loc:262560|#define PLUS(A, B) A + B
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|222222222222233333333333
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|566677788899900011122223
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|925825814814704703603692
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|246802468024680246802468
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test.h: 4|loc:266656|
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ORDINARY MAP: 7
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location_t interval: 266720 <= loc < 299520
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file: test.c
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starting at line: 2
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column and range bits: 12
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column bits: 7
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range bits: 5
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reason: 1 (LC_LEAVE)
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included from location: 0
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test.c: 2|loc:266720|
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test.c: 3|loc:270816|int
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|000
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|889
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|481
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|802
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test.c: 4|loc:274912|main (int argc, char **argv)
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|4455555555555555555555555555
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|9900011122223334445556667778
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|4704703603692692582581481470
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|4680246802468024680246802468
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test.c: 5|loc:279008|{
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|9
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|0
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|4
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|0
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test.c: 6|loc:283104| int a = PLUS (1,2);
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|333333333333333333333
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|112222333444555666777
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|360369269258258148147
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|680246802468024680246
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test.c: 7|loc:287200| int b = PLUS (3,4);
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|777777777777777777777
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|222333444555666777888
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|369269258258148147047
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|246802468024680246802
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test.c: 8|loc:291296| return 0;
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|11111111111
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|33344455566
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|26925825814
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|80246802468
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test.c: 9|loc:295392|}
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|5
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|4
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|2
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|4
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test.c: 10|loc:299488|
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UNALLOCATED LOCATIONS
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location_t interval: 299520 <= loc < 2147483632
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MACRO 3: PLUS (7 tokens)
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location_t interval: 2147483632 <= loc < 2147483639
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test.c:7:11: note: expansion point is location 287555
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7 | int b = PLUS (3,4);
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| ^~~~
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map->start_location: 2147483632
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macro_locations:
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0: 287744, 263200
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test.c:7:17: note: token 0 has x-location == 287744
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7 | int b = PLUS (3,4);
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| ^
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test.c:7:17: note: token 0 has y-location == 263200
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1: 263264, 263264
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In file included from test.c:1:
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test.h:3:22: note: token 1 has x-location == y-location == 263264
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3 | #define PLUS(A, B) A + B
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| ^
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2: 287808, 263328
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test.c:7:19: note: token 2 has x-location == 287808
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7 | int b = PLUS (3,4);
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| ^
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test.c:7:19: note: token 2 has y-location == 263328
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3: 0, 0
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cc1: note: token 3 has x-location == y-location == 0
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4: 0, 0
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cc1: note: token 4 has x-location == y-location == 0
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5: 0, 0
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cc1: note: token 5 has x-location == y-location == 0
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6: 0, 0
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cc1: note: token 6 has x-location == y-location == 0
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MACRO 2: PLUS (7 tokens)
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location_t interval: 2147483639 <= loc < 2147483646
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test.c:6:11: note: expansion point is location 283459
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6 | int a = PLUS (1,2);
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| ^~~~
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map->start_location: 2147483639
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macro_locations:
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0: 283648, 263200
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test.c:6:17: note: token 0 has x-location == 283648
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6 | int a = PLUS (1,2);
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| ^
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test.c:6:17: note: token 0 has y-location == 263200
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1: 263264, 263264
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In file included from test.c:1:
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test.h:3:22: note: token 1 has x-location == y-location == 263264
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3 | #define PLUS(A, B) A + B
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| ^
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2: 283712, 263328
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test.c:6:19: note: token 2 has x-location == 283712
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6 | int a = PLUS (1,2);
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| ^
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test.c:6:19: note: token 2 has y-location == 263328
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3: 0, 0
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cc1: note: token 3 has x-location == y-location == 0
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4: 0, 0
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cc1: note: token 4 has x-location == y-location == 0
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5: 0, 0
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cc1: note: token 5 has x-location == y-location == 0
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6: 0, 0
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cc1: note: token 6 has x-location == y-location == 0
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MACRO 1: __GCC_IEC_559_COMPLEX (1 tokens)
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location_t interval: 2147483646 <= loc < 2147483647
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In file included from <command-line>:31:
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/usr/include/stdc-predef.h:45:6: note: expansion point is location 180564
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45 | # if __GCC_IEC_559_COMPLEX > 0
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| ^~~~~~~~~~~~~~~~~~~~~
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map->start_location: 2147483646
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macro_locations:
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0: 1, 1
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<built-in>: note: token 0 has x-location == y-location == 1
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MACRO 0: __GCC_IEC_559 (1 tokens)
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location_t interval: 2147483647 <= loc < 2147483648
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/usr/include/stdc-predef.h:37:6: note: expansion point is location 147788
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37 | # if __GCC_IEC_559 > 0
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| ^~~~~~~~~~~~~
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map->start_location: 2147483647
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macro_locations:
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0: 1, 1
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<built-in>: note: token 0 has x-location == y-location == 1
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MAX_LOCATION_T
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location_t interval: 2147483647 <= loc < 2147483648
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AD-HOC LOCATIONS
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location_t interval: 2147483648 <= loc < 4294967295
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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