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authorDenys Vlasenko <vda.linux@googlemail.com>2018-12-25 22:20:14 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2018-12-25 22:20:14 +0100
commit6e6182342ef59c47972a49543cd8b15dc4f28f6d (patch)
tree81f7b11d93a08568e3f9925772c35000a5e4d69e
parent0b0e8d0509bdd45aa600d3ea2bf9043630809cd2 (diff)
downloadbusybox-6e6182342ef59c47972a49543cd8b15dc4f28f6d.tar.gz
bc: move BcLex::lex member to be the first in struct globals
function old new delta zbc_program_exec 3967 4003 +36 zdc_program_execStr 501 520 +19 zbc_posix_error_fmt 58 62 +4 bc_vm_init 675 679 +4 bc_read_line 407 411 +4 bc_error_fmt 36 40 +4 zdc_parse_register 45 44 -1 zdc_parse_exprs_until_eof 28 27 -1 zbc_parse_text_init 56 55 -1 zbc_parse_stmt_allow_NLINE_before 55 54 -1 zbc_lex_skip_if_at_NLINE 19 18 -1 zbc_lex_number 178 177 -1 bc_parse_create 97 96 -1 bc_lex_whitespace 43 42 -1 bc_lex_name 71 70 -1 bc_lex_lineComment 38 37 -1 bc_lex_assign 35 34 -1 zdc_parse_expr 476 473 -3 bc_verror_msg 93 90 -3 bc_lex_file 27 24 -3 zbc_parse_name 453 448 -5 bc_parse_expr_empty_ok 1776 1764 -12 zbc_vm_process 878 865 -13 zbc_parse_stmt_possibly_auto 1451 1425 -26 zbc_lex_next 2075 2039 -36 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 6/19 up/down: 71/-112) Total: -41 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--miscutils/bc.c130
1 files changed, 65 insertions, 65 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c
index 7a6278cfc..44d4976cc 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -711,40 +711,29 @@ dc_LEX_to_INST[] = { // starts at XC_LEX_OP_POWER // corresponding XC/DC_L
#endif // ENABLE_DC
typedef struct BcLex {
- const char *lex_inbuf;
- const char *lex_next_at; // last lex_next() was called at this string
+ smallint lex; // was BcLexType // first member is most used
+ smallint lex_last; // was BcLexType
+ bool lex_newline;
size_t lex_i;
size_t lex_line;
size_t lex_len;
- bool lex_newline;
- smallint lex; // was BcLexType
- smallint lex_last; // was BcLexType
+ const char *lex_inbuf;
+ const char *lex_next_at; // last lex_next() was called at this string
BcVec lex_strnumbuf;
} BcLex;
-#define BC_PARSE_STREND (0xff)
-
-#if ENABLE_BC
-# define BC_PARSE_REL (1 << 0)
-# define BC_PARSE_PRINT (1 << 1)
-# define BC_PARSE_ARRAY (1 << 2)
-# define BC_PARSE_NOCALL (1 << 3)
-#endif
-
typedef struct BcParse {
- BcLex l;
-
- IF_BC(BcVec exits;)
- IF_BC(BcVec conds;)
- IF_BC(BcVec ops;)
+ BcLex l; // first member is most used
const char *filename;
FILE *input_fp;
BcFunc *func;
size_t fidx;
-
IF_BC(size_t in_funcdef;)
+ IF_BC(BcVec exits;)
+ IF_BC(BcVec conds;)
+ IF_BC(BcVec ops;)
} BcParse;
typedef struct BcProgram {
@@ -775,6 +764,62 @@ typedef struct BcProgram {
IF_BC(BcNum last;)
} BcProgram;
+struct globals {
+ BcParse prs; // first member is most used
+
+ // For error messages. Can be set to current parsed line,
+ // or [TODO] to current executing line (can be before last parsed one)
+ unsigned err_line;
+
+ BcVec input_buffer;
+
+ IF_FEATURE_BC_SIGNALS(smallint ttyin;)
+ IF_FEATURE_CLEAN_UP(smallint exiting;)
+
+ BcProgram prog;
+
+ BcVec files;
+
+ char *env_args;
+
+#if ENABLE_FEATURE_EDITING
+ line_input_t *line_input_state;
+#endif
+} FIX_ALIASING;
+#define G (*ptr_to_globals)
+#define INIT_G() do { \
+ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+} while (0)
+#define FREE_G() do { \
+ FREE_PTR_TO_GLOBALS(); \
+} while (0)
+#define G_posix (ENABLE_BC && (option_mask32 & BC_FLAG_S))
+#define G_warn (ENABLE_BC && (option_mask32 & BC_FLAG_W))
+#define G_exreg (ENABLE_DC && (option_mask32 & DC_FLAG_X))
+#if ENABLE_FEATURE_BC_SIGNALS
+# define G_interrupt bb_got_signal
+# define G_ttyin G.ttyin
+#else
+# define G_interrupt 0
+# define G_ttyin 0
+#endif
+#if ENABLE_FEATURE_CLEAN_UP
+# define G_exiting G.exiting
+#else
+# define G_exiting 0
+#endif
+#define IS_BC (ENABLE_BC && (!ENABLE_DC || applet_name[0] == 'b'))
+#define IS_DC (ENABLE_DC && (!ENABLE_BC || applet_name[0] != 'b'))
+
+#define BC_PARSE_STREND (0xff)
+
+#if ENABLE_BC
+# define BC_PARSE_REL (1 << 0)
+# define BC_PARSE_PRINT (1 << 1)
+# define BC_PARSE_ARRAY (1 << 2)
+# define BC_PARSE_NOCALL (1 << 3)
+#endif
+
#define BC_PROG_MAIN (0)
#define BC_PROG_READ (1)
#if ENABLE_DC
@@ -830,51 +875,6 @@ typedef struct BcProgram {
#endif
#define BC_MAX_NUM_STR BC_MAX_STRING_STR
-struct globals {
- IF_FEATURE_BC_SIGNALS(smallint ttyin;)
- IF_FEATURE_CLEAN_UP(smallint exiting;)
-
- BcParse prs;
- BcProgram prog;
-
- // For error messages. Can be set to current parsed line,
- // or [TODO] to current executing line (can be before last parsed one)
- unsigned err_line;
-
- BcVec files;
- BcVec input_buffer;
-
- char *env_args;
-
-#if ENABLE_FEATURE_EDITING
- line_input_t *line_input_state;
-#endif
-} FIX_ALIASING;
-#define G (*ptr_to_globals)
-#define INIT_G() do { \
- SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
-} while (0)
-#define FREE_G() do { \
- FREE_PTR_TO_GLOBALS(); \
-} while (0)
-#define G_posix (ENABLE_BC && (option_mask32 & BC_FLAG_S))
-#define G_warn (ENABLE_BC && (option_mask32 & BC_FLAG_W))
-#define G_exreg (ENABLE_DC && (option_mask32 & DC_FLAG_X))
-#if ENABLE_FEATURE_BC_SIGNALS
-# define G_interrupt bb_got_signal
-# define G_ttyin G.ttyin
-#else
-# define G_interrupt 0
-# define G_ttyin 0
-#endif
-#if ENABLE_FEATURE_CLEAN_UP
-# define G_exiting G.exiting
-#else
-# define G_exiting 0
-#endif
-#define IS_BC (ENABLE_BC && (!ENABLE_DC || applet_name[0] == 'b'))
-#define IS_DC (ENABLE_DC && (!ENABLE_BC || applet_name[0] != 'b'))
-
// In configurations where errors abort instead of propagating error
// return code up the call chain, functions returning BC_STATUS
// actually don't return anything, they always succeed and return "void".