diff options
| -rw-r--r-- | editors/awk.c | 103 |
1 files changed, 53 insertions, 50 deletions
diff --git a/editors/awk.c b/editors/awk.c index b5bab16..9d306bf 100644 --- a/editors/awk.c +++ b/editors/awk.c @@ -392,23 +392,10 @@ static const char vValues[] = static const unsigned PRIMES[] = { 251, 1021, 4093, 16381, 65521 }; enum { NPRIMES = sizeof(PRIMES) / sizeof(PRIMES[0]) }; -/* globals */ +/* Globals. Split in two parts so that first one is addressed + * with (mostly short) negative offsets */ struct globals { - /* former 'struct t' */ - uint32_t t_info; /* often used */ - uint32_t t_tclass; - char *t_string; - double t_double; - int t_lineno; - int t_rollback; - - /* the rest */ - smallint icase; - smallint exiting; - smallint nextrec; - smallint nextfile; - smallint is_f0_split; chain beginseq, mainseq, endseq, *seq; node *break_ptr, *continue_ptr; rstream *iF; @@ -421,17 +408,31 @@ struct globals { nvblock *g_cb; char *g_pos; char *g_buf; + smallint icase; + smallint exiting; + smallint nextrec; + smallint nextfile; + smallint is_f0_split; +}; +struct globals2 { + uint32_t t_info; /* often used */ + uint32_t t_tclass; + char *t_string; + int t_lineno; + int t_rollback; + + var *intvar[NUM_INTERNAL_VARS]; /* often used */ /* former statics from various functions */ char *split_f0__fstrings; - rstream next_input_file__rsm; - smallint next_input_file__files_happen; - - smallint next_token__concat_inserted; uint32_t next_token__save_tclass; uint32_t next_token__save_info; uint32_t next_token__ltclass; + smallint next_token__concat_inserted; + + smallint next_input_file__files_happen; + rstream next_input_file__rsm; var *evaluate__fnargs; unsigned evaluate__seed; @@ -441,50 +442,52 @@ struct globals { tsplitter exec_builtin__tspl; - /* biggest members go last */ - var *intvar[NUM_INTERNAL_VARS]; + /* biggest and least used members go last */ + double t_double; tsplitter fsplitter, rsplitter; }; -#define G (*ptr_to_globals) -/* for debug */ -/* char Gsize[sizeof(G)]; ~0x240 */ +#define G1 (ptr_to_globals[-1]) +#define G (*(struct globals2 *const)ptr_to_globals) +/* For debug. nm --size-sort awk.o | grep -vi ' [tr] ' */ +/* char G1size[sizeof(G1)]; - 0x6c */ +/* char Gsize[sizeof(G)]; - 0x1cc */ /* Trying to keep most of members accessible with short offsets: */ -/* char Gofs_seed[offsetof(struct globals, evaluate__seed)]; ~0xc0 */ +/* char Gofs_seed[offsetof(struct globals2, evaluate__seed)]; - 0x90 */ +#define beginseq (G1.beginseq ) +#define mainseq (G1.mainseq ) +#define endseq (G1.endseq ) +#define seq (G1.seq ) +#define break_ptr (G1.break_ptr ) +#define continue_ptr (G1.continue_ptr) +#define iF (G1.iF ) +#define vhash (G1.vhash ) +#define ahash (G1.ahash ) +#define fdhash (G1.fdhash ) +#define fnhash (G1.fnhash ) +#define g_progname (G1.g_progname ) +#define g_lineno (G1.g_lineno ) +#define nfields (G1.nfields ) +#define maxfields (G1.maxfields ) +#define Fields (G1.Fields ) +#define g_cb (G1.g_cb ) +#define g_pos (G1.g_pos ) +#define g_buf (G1.g_buf ) +#define icase (G1.icase ) +#define exiting (G1.exiting ) +#define nextrec (G1.nextrec ) +#define nextfile (G1.nextfile ) +#define is_f0_split (G1.is_f0_split ) #define t_info (G.t_info ) #define t_tclass (G.t_tclass ) #define t_string (G.t_string ) #define t_double (G.t_double ) #define t_lineno (G.t_lineno ) #define t_rollback (G.t_rollback ) -#define icase (G.icase ) -#define exiting (G.exiting ) -#define nextrec (G.nextrec ) -#define nextfile (G.nextfile ) -#define is_f0_split (G.is_f0_split ) -#define beginseq (G.beginseq ) -#define mainseq (G.mainseq ) -#define endseq (G.endseq ) -#define seq (G.seq ) -#define break_ptr (G.break_ptr ) -#define continue_ptr (G.continue_ptr) -#define iF (G.iF ) -#define vhash (G.vhash ) -#define ahash (G.ahash ) -#define fdhash (G.fdhash ) -#define fnhash (G.fnhash ) -#define g_progname (G.g_progname ) -#define g_lineno (G.g_lineno ) -#define nfields (G.nfields ) -#define maxfields (G.maxfields ) -#define Fields (G.Fields ) -#define g_cb (G.g_cb ) -#define g_pos (G.g_pos ) -#define g_buf (G.g_buf ) #define intvar (G.intvar ) #define fsplitter (G.fsplitter ) #define rsplitter (G.rsplitter ) #define INIT_G() do { \ - PTR_TO_GLOBALS = xzalloc(sizeof(G)); \ + PTR_TO_GLOBALS = xzalloc(sizeof(G1) + sizeof(G)) + sizeof(G1); \ G.next_token__ltclass = TC_OPTERM; \ G.evaluate__seed = 1; \ } while (0) |