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profile.c
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profile.c
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/*
* profile.c - gawk bytecode pretty-printer with counts
*/
/*
* Copyright (C) 1999-2021 the Free Software Foundation, Inc.
*
* This file is part of GAWK, the GNU implementation of the
* AWK Programming Language.
*
* GAWK is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GAWK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "awk.h"
static void pprint(INSTRUCTION *startp, INSTRUCTION *endp, int flags);
static INSTRUCTION *end_line(INSTRUCTION *ip);
static void pp_parenthesize(NODE *n);
static void parenthesize(int type, NODE *left, NODE *right);
static char *pp_list(int nargs, const char *paren, const char *delim);
static char *pp_group3(const char *s1, const char *s2, const char *s3);
static char *pp_concat(int nargs);
static char *pp_string_or_typed_regex(const char *in_str, size_t len, int delim, bool typed_regex);
static char *pp_typed_regex(const char *in_str, size_t len, int delim);
static bool is_binary(int type);
static bool is_scalar(int type);
static int prec_level(int type);
static void pp_push(int type, char *s, int flag, INSTRUCTION *comment);
static NODE *pp_pop(void);
static void print_comment(INSTRUCTION *pc, long in);
const char *redir2str(int redirtype);
static void pp_namespace(const char *name, INSTRUCTION *comment);
static void pp_namespace_list(INSTRUCTION *list);
static char *adjust_namespace(char *name, bool *malloced);
#define pp_str vname
#define pp_len sub.nodep.reserved
#define pp_next rnode
#define pp_comment sub.nodep.x.cmnt
#define DONT_FREE 1
#define CAN_FREE 2
static void dump_and_exit(int signum) ATTRIBUTE_NORETURN;
static void just_dump(int signum);
/* pretty printing related functions and variables */
static NODE *pp_stack = NULL;
static NODE *func_params; /* function parameters */
static FILE *prof_fp; /* where to send the profile */
static long indent_level = 0;
static const char tabs[] = "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
static const size_t tabs_len = sizeof(tabs) - 1;
#define check_indent_level() \
if (indent_level + 1 > tabs_len) \
/* We're allowed to be snarky, occasionally. */ \
fatal(_("Program indentation level too deep. Consider refactoring your code"));
#define SPACEOVER 0
#define NO_PPRINT_FLAGS 0
#define IN_FOR_HEADER 1
#define IN_ELSE_IF 2
/* set_prof_file --- set the output file for profiling or pretty-printing */
void
set_prof_file(const char *file)
{
int fd;
assert(file != NULL);
fd = devopen_simple(file, "w", true);
if (fd == INVALID_HANDLE)
prof_fp = NULL;
else if (fd == fileno(stdout))
prof_fp = stdout;
else if (fd == fileno(stderr))
prof_fp = stderr;
else
prof_fp = fdopen(fd, "w");
if (prof_fp == NULL) {
/* don't leak file descriptors */
int e = errno;
if ( fd != INVALID_HANDLE
&& fd != fileno(stdout)
&& fd != fileno(stderr))
(void) close(fd);
errno = e;
warning(_("could not open `%s' for writing: %s"),
file, strerror(errno));
warning(_("sending profile to standard error"));
prof_fp = stderr;
}
}
/* init_profiling_signals --- set up signal handling for gawk --profile */
void
init_profiling_signals()
{
#ifdef __DJGPP__
signal(SIGINT, dump_and_exit);
signal(SIGQUIT, just_dump);
#else /* !__DJGPP__ */
#ifdef SIGHUP
signal(SIGHUP, dump_and_exit);
#endif
#ifdef SIGUSR1
signal(SIGUSR1, just_dump);
#endif
#endif /* !__DJGPP__ */
}
/* indent --- print out enough tabs */
static void
indent(exec_count_t count)
{
int i;
if (do_profile) {
if (count == 0)
fprintf(prof_fp, "\t");
else
fprintf(prof_fp, EXEC_COUNT_PROFILE_FMT " ", count);
}
assert(indent_level >= 0);
for (i = 0; i < indent_level; i++)
fprintf(prof_fp, "\t");
}
/* indent_in --- increase the level, with error checking */
static void
indent_in(void)
{
assert(indent_level >= 0);
indent_level++;
}
/* indent_out --- decrease the level, with error checking */
static void
indent_out(void)
{
indent_level--;
assert(indent_level >= 0);
}
/* pp_push --- push a pretty printed string onto the stack */
static void
pp_push(int type, char *s, int flag, INSTRUCTION *comment)
{
NODE *n;
getnode(n);
n->pp_str = s;
n->pp_len = strlen(s);
n->flags = flag;
n->type = (NODETYPE) type;
n->pp_next = pp_stack;
n->pp_comment = comment;
pp_stack = n;
}
/* pp_pop --- pop a pretty printed string off the stack */
static NODE *
pp_pop()
{
NODE *n;
n = pp_stack;
pp_stack = n->pp_next;
return n;
}
/* pp_top --- look at what's on the top of the stack */
#define pp_top() pp_stack
/* pp_free --- release a pretty printed node */
static void
pp_free(NODE *n)
{
if ((n->flags & CAN_FREE) != 0)
efree(n->pp_str);
freenode(n);
}
/* pprint --- pretty print a program segment */
static void
pprint(INSTRUCTION *startp, INSTRUCTION *endp, int flags)
{
INSTRUCTION *pc;
NODE *t1;
char *str;
NODE *t2;
INSTRUCTION *ip1;
INSTRUCTION *ip2;
NODE *m;
char *tmp;
int rule;
static int rule_count[MAXRULE];
static bool skip_comment = false;
for (pc = startp; pc != endp; pc = pc->nexti) {
if (pc->source_line > 0)
sourceline = pc->source_line;
/* skip leading EOL comment as it has already been printed */
if (pc->opcode == Op_comment
&& pc->memory->comment_type == EOL_COMMENT
&& skip_comment) {
skip_comment = false;
continue;
}
skip_comment = false;
switch (pc->opcode) {
case Op_rule:
/*
* Rules are four instructions long.
* See append_rule in awkgram.y.
* The first has the Rule Op Code, nexti etc.
* The second, (pc + 1) has firsti and lasti:
* the first/last ACTION instructions for this rule.
* The third has first_line and last_line:
* the first and last source line numbers.
* The fourth holds the namespace name if there is one.
* (there should be one if we're in this file)
* This can actually be a list in reverse order if
* there were several @namespace directives one
* after the other.
*/
source = pc->source_file;
rule = pc->in_rule;
pp_namespace_list(pc[3].nexti);
if (rule != Rule) {
/* Allow for pre-non-rule-block comment */
if (pc->nexti != (pc+1)->firsti
&& pc->nexti->opcode == Op_comment
&& pc->nexti->memory->comment_type == BLOCK_COMMENT)
print_comment(pc->nexti, -1);
ip1 = (pc + 1)->firsti;
ip2 = (pc + 1)->lasti;
if (do_profile) {
if (! rule_count[rule]++)
fprintf(prof_fp, _("\t# %s rule(s)\n\n"), ruletab[rule]);
indent(0);
}
fprintf(prof_fp, "%s {", ruletab[rule]);
end_line(pc);
skip_comment = true;
} else {
if (do_profile && ! rule_count[rule]++)
fprintf(prof_fp, _("\t# Rule(s)\n\n"));
ip1 = pc->nexti;
indent(ip1->exec_count);
if (ip1 != (pc + 1)->firsti) { /* non-empty pattern */
pprint(ip1->nexti, (pc + 1)->firsti, NO_PPRINT_FLAGS);
/* Allow for case where the "pattern" is just a comment */
if (ip1->nexti->nexti->nexti != (pc +1)->firsti
|| ip1->nexti->opcode != Op_comment) {
t1 = pp_pop();
fprintf(prof_fp, "%s {", t1->pp_str);
pp_free(t1);
} else
fprintf(prof_fp, "{");
ip1 = (pc + 1)->firsti;
ip2 = (pc + 1)->lasti;
if (do_profile && ip1->exec_count > 0)
fprintf(prof_fp, " # " EXEC_COUNT_FMT, ip1->exec_count);
end_line(ip1);
skip_comment = true;
} else {
fprintf(prof_fp, "{\n");
ip1 = (pc + 1)->firsti;
ip2 = (pc + 1)->lasti;
}
ip1 = ip1->nexti;
}
indent_in();
pprint(ip1, ip2, NO_PPRINT_FLAGS);
indent_out();
if (do_profile)
indent(0);
fprintf(prof_fp, "}\n\n");
pc = (pc + 1)->lasti;
break;
case Op_atexit:
break;
case Op_stop:
memset(rule_count, 0, MAXRULE * sizeof(int));
break;
case Op_push_i:
m = pc->memory;
if (m == Nnull_string) /* optional return or exit value; don't print 0 or "" */
pp_push(pc->opcode, m->stptr, DONT_FREE, pc->comment);
else if ((m->flags & NUMBER) != 0)
pp_push(pc->opcode, pp_number(m), CAN_FREE, pc->comment);
else {
str = pp_string(m->stptr, m->stlen, '"');
if ((m->flags & INTLSTR) != 0) {
char *tmp = str;
str = pp_group3("_", tmp, "");
efree(tmp);
}
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
}
break;
case Op_store_var:
if (pc->initval != NULL)
pp_push(Op_push_i, pp_node(pc->initval), CAN_FREE, pc->comment);
/* fall through */
case Op_store_sub:
case Op_assign_concat:
case Op_push_lhs:
case Op_push_param:
case Op_push_array:
case Op_push:
case Op_push_arg:
case Op_push_arg_untyped:
m = pc->memory;
switch (m->type) {
case Node_param_list:
pp_push(pc->opcode, func_params[m->param_cnt].param, DONT_FREE, pc->comment);
break;
case Node_var:
case Node_var_new:
case Node_var_array:
if (m->vname != NULL) {
bool malloced = false;
char *name = adjust_namespace(m->vname, & malloced);
pp_push(pc->opcode, name, malloced ? CAN_FREE : DONT_FREE, pc->comment);
} else
fatal(_("internal error: %s with null vname"),
nodetype2str(m->type));
break;
default:
fprintf(stderr, "Got unexpected type %s\n", nodetype2str(m->type));
cant_happen();
}
switch (pc->opcode) {
case Op_store_var:
t2 = pp_pop(); /* l.h.s. */
t1 = pp_pop(); /* r.h.s. */
fprintf(prof_fp, "%s%s%s", t2->pp_str, op2str(pc->opcode), t1->pp_str);
goto cleanup;
case Op_store_sub:
t1 = pp_pop(); /* array */
tmp = pp_list(pc->expr_count, op2str(Op_subscript), ", "); /*subscript*/
t2 = pp_pop(); /* r.h.s. */
fprintf(prof_fp, "%s%s%s%s", t1->pp_str, tmp,
op2str(pc->opcode), t2->pp_str);
efree(tmp);
goto cleanup;
case Op_assign_concat:
t2 = pp_pop(); /* l.h.s. */
t1 = pp_pop();
tmp = pp_group3(t2->pp_str, op2str(Op_concat), t1->pp_str);
fprintf(prof_fp, "%s%s%s", t2->pp_str, op2str(Op_assign), tmp);
efree(tmp);
cleanup:
pp_free(t2);
pp_free(t1);
if ((flags & IN_FOR_HEADER) == 0)
pc = end_line(pc);
break;
default:
break;
}
break;
case Op_sub_array:
case Op_subscript_lhs:
case Op_subscript:
tmp = pp_list(pc->sub_count, op2str(pc->opcode), ", ");
t1 = pp_pop();
str = pp_group3(t1->pp_str, tmp, "");
efree(tmp);
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_and:
case Op_or:
pprint(pc->nexti, pc->target_jmp, flags);
t2 = pp_pop();
t1 = pp_pop();
parenthesize(pc->opcode, t1, t2);
if (pc->comment == NULL)
str = pp_group3(t1->pp_str, op2str(pc->opcode), t2->pp_str);
else {
check_indent_level();
size_t len = strlen(t1->pp_str)
+ strlen(op2str(pc->opcode)) + strlen(t2->pp_str) // foo && bar
+ indent_level + 1 // indent
+ pc->comment->memory->stlen + 3; // tab comment
emalloc(str, char *, len, "pprint");
sprintf(str, "%s%s%s%.*s %s", t1->pp_str, op2str(pc->opcode),
pc->comment->memory->stptr,
(int) (indent_level + 1), tabs, t2->pp_str);
}
pp_free(t1);
pp_free(t2);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
pc = pc->target_jmp;
break;
case Op_plus_i:
case Op_minus_i:
case Op_times_i:
case Op_exp_i:
case Op_quotient_i:
case Op_mod_i:
m = pc->memory;
t1 = pp_pop();
if (prec_level(pc->opcode) > prec_level(t1->type)
&& is_binary(t1->type)) /* (a - b) * 1 */
pp_parenthesize(t1);
if ((m->flags & NUMBER) != 0)
tmp = pp_number(m);
else
tmp = pp_string(m->stptr, m->stlen, '"');
str = pp_group3(t1->pp_str, op2str(pc->opcode), tmp);
efree(tmp);
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_parens:
t1 = pp_pop();
str = pp_group3("(", t1->pp_str, ")");
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_plus:
case Op_minus:
case Op_times:
case Op_exp:
case Op_quotient:
case Op_mod:
case Op_equal:
case Op_notequal:
case Op_less:
case Op_greater:
case Op_leq:
case Op_geq:
t2 = pp_pop();
t1 = pp_pop();
parenthesize(pc->opcode, t1, t2);
str = pp_group3(t1->pp_str, op2str(pc->opcode), t2->pp_str);
pp_free(t1);
pp_free(t2);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_preincrement:
case Op_predecrement:
case Op_postincrement:
case Op_postdecrement:
t1 = pp_pop();
if (pc->opcode == Op_preincrement || pc->opcode == Op_predecrement)
str = pp_group3(op2str(pc->opcode), t1->pp_str, "");
else
str = pp_group3(t1->pp_str, op2str(pc->opcode), "");
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_field_spec:
case Op_field_spec_lhs:
case Op_unary_minus:
case Op_unary_plus:
case Op_not:
t1 = pp_pop();
if (is_binary(t1->type)
|| (((OPCODE) t1->type) == pc->opcode
&& (pc->opcode == Op_unary_minus
|| pc->opcode == Op_unary_plus)))
pp_parenthesize(t1);
/* optypes table (eval.c) includes space after ! */
str = pp_group3(op2str(pc->opcode), t1->pp_str, "");
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_assign:
case Op_assign_plus:
case Op_assign_minus:
case Op_assign_times:
case Op_assign_quotient:
case Op_assign_mod:
case Op_assign_exp:
t2 = pp_pop(); /* l.h.s. */
t1 = pp_pop();
str = pp_group3(t2->pp_str, op2str(pc->opcode), t1->pp_str);
pp_free(t2);
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_store_field:
t1 = pp_pop(); /* field num */
if (is_binary(t1->type))
pp_parenthesize(t1);
t2 = pp_pop(); /* r.h.s. */
fprintf(prof_fp, "$%s%s%s", t1->pp_str, op2str(pc->opcode), t2->pp_str);
pp_free(t2);
pp_free(t1);
if ((flags & IN_FOR_HEADER) == 0)
pc = end_line(pc);
break;
case Op_concat:
str = pp_concat(pc->expr_count);
pp_push(Op_concat, str, CAN_FREE, pc->comment);
break;
case Op_K_delete:
{
char *array;
t1 = pp_pop();
array = t1->pp_str;
if (pc->expr_count > 0) {
char *sub;
sub = pp_list(pc->expr_count, NULL, pc->expr_count > 1 ? "][" : ", ");
fprintf(prof_fp, "%s %s[%s]", op2str(Op_K_delete), array, sub);
efree(sub);
} else
fprintf(prof_fp, "%s %s", op2str(Op_K_delete), array);
if ((flags & IN_FOR_HEADER) == 0)
pc = end_line(pc);
pp_free(t1);
}
break;
case Op_K_delete_loop:
/* Efficency hack not in effect because of exec_count instruction */
cant_happen();
break;
case Op_in_array:
{
char *array, *sub;
t1 = pp_pop();
array = t1->pp_str;
if (pc->expr_count > 1) {
sub = pp_list(pc->expr_count, "()", ", ");
str = pp_group3(sub, op2str(Op_in_array), array);
efree(sub);
} else {
t2 = pp_pop();
if (prec_level(t2->type) < prec_level(Op_in_array)) {
pp_parenthesize(t2);
}
sub = t2->pp_str;
str = pp_group3(sub, op2str(Op_in_array), array);
pp_free(t2);
}
pp_free(t1);
pp_push(Op_in_array, str, CAN_FREE, pc->comment);
}
break;
case Op_var_update:
case Op_var_assign:
case Op_field_assign:
case Op_subscript_assign:
case Op_arrayfor_init:
case Op_arrayfor_incr:
case Op_arrayfor_final:
case Op_newfile:
case Op_get_record:
case Op_lint:
case Op_jmp:
case Op_jmp_false:
case Op_jmp_true:
case Op_no_op:
case Op_and_final:
case Op_or_final:
case Op_cond_pair:
case Op_after_beginfile:
case Op_after_endfile:
break;
case Op_sub_builtin:
{
const char *fname = "sub";
if ((pc->sub_flags & GSUB) != 0)
fname = "gsub";
else if ((pc->sub_flags & GENSUB) != 0)
fname = "gensub";
tmp = pp_list(pc->expr_count, "()", ", ");
str = pp_group3(fname, tmp, "");
efree(tmp);
pp_push(Op_sub_builtin, str, CAN_FREE, pc->comment);
}
break;
case Op_builtin:
case Op_ext_builtin:
{
const char *fname;
if (pc->opcode == Op_builtin) {
bool prepend_awk = (current_namespace != awk_namespace && strcmp(current_namespace, awk_namespace) != 0);
fname = getfname(pc->builtin, prepend_awk);
} else
fname = (pc + 1)->func_name;
if (fname != NULL) {
if (pc->expr_count > 0) {
tmp = pp_list(pc->expr_count, "()", ", ");
str = pp_group3(fname, tmp, "");
efree(tmp);
} else
str = pp_group3(fname, "()", "");
pp_push(Op_builtin, str, CAN_FREE, pc->comment);
} else
fatal(_("internal error: builtin with null fname"));
}
break;
case Op_K_print:
case Op_K_printf:
case Op_K_print_rec:
if (pc->opcode == Op_K_print_rec)
// instead of `print $0', just `print'
tmp = strdup("");
else if (pc->redir_type != 0) {
// Avoid turning printf("hello\n") into printf(("hello\n"))
NODE *n = pp_top();
if (pc->expr_count == 1
&& n->pp_str[0] == '('
&& n->pp_str[n->pp_len - 1] == ')') {
n = pp_pop();
tmp = strdup(n->pp_str);
pp_free(n);
} else
tmp = pp_list(pc->expr_count, "()", ", ");
} else {
tmp = pp_list(pc->expr_count, " ", ", ");
tmp[strlen(tmp) - 1] = '\0'; /* remove trailing space */
}
if (pc->redir_type != 0) {
t1 = pp_pop();
if (is_binary(t1->type))
pp_parenthesize(t1);
fprintf(prof_fp, "%s%s%s%s", op2str(pc->opcode),
tmp, redir2str(pc->redir_type), t1->pp_str);
pp_free(t1);
} else
fprintf(prof_fp, "%s%s", op2str(pc->opcode), tmp);
efree(tmp);
if ((flags & IN_FOR_HEADER) == 0)
pc = end_line(pc);
break;
case Op_push_re:
if (pc->memory->type != Node_regex && (pc->memory->flags & REGEX) == 0)
break;
/* else
fall through */
case Op_match_rec:
{
if (pc->memory->type == Node_regex) {
NODE *re = pc->memory->re_exp;
str = pp_string(re->stptr, re->stlen, '/');
} else {
assert((pc->memory->flags & REGEX) != 0);
str = pp_typed_regex(pc->memory->stptr, pc->memory->stlen, '/');
}
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
}
break;
case Op_nomatch:
case Op_match:
{
char *restr, *txt;
t1 = pp_pop();
if (is_binary(t1->type))
pp_parenthesize(t1);
txt = t1->pp_str;
m = pc->memory;
if (m->type == Node_dynregex) {
restr = txt;
t2 = pp_pop();
if (is_binary(t2->type))
pp_parenthesize(t2);
txt = t2->pp_str;
str = pp_group3(txt, op2str(pc->opcode), restr);
pp_free(t2);
} else if (m->type == Node_val && (m->flags & REGEX) != 0) {
restr = pp_typed_regex(m->stptr, m->stlen, '/');
str = pp_group3(txt, op2str(pc->opcode), restr);
efree(restr);
} else {
NODE *re = m->re_exp;
restr = pp_string(re->stptr, re->stlen, '/');
str = pp_group3(txt, op2str(pc->opcode), restr);
efree(restr);
}
pp_free(t1);
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
}
break;
case Op_K_getline:
case Op_K_getline_redir:
if (pc->into_var) {
t1 = pp_pop();
tmp = pp_group3(op2str(Op_K_getline), " ", t1->pp_str);
pp_free(t1);
} else
tmp = pp_group3(op2str(Op_K_getline), "", "");
if (pc->redir_type != 0) {
int before = (pc->redir_type == redirect_pipein
|| pc->redir_type == redirect_twoway);
t2 = pp_pop();
if (is_binary(t2->type))
pp_parenthesize(t2);
if (before)
str = pp_group3(t2->pp_str, redir2str(pc->redir_type), tmp);
else
str = pp_group3(tmp, redir2str(pc->redir_type), t2->pp_str);
efree(tmp);
pp_free(t2);
} else
str = tmp;
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
break;
case Op_indirect_func_call:
case Op_func_call:
{
const char *pre;
int pcount;
bool malloced = false;
char *fname = adjust_namespace(pc->func_name, & malloced);
if (pc->opcode == Op_indirect_func_call)
pre = "@";
else
pre = "";
pcount = (pc + 1)->expr_count;
if (pcount > 0) {
tmp = pp_list(pcount, "()", ", ");
str = pp_group3(pre, fname, tmp);
efree(tmp);
} else
str = pp_group3(pre, fname, "()");
if (pc->opcode == Op_indirect_func_call) {
t1 = pp_pop(); /* indirect var */
pp_free(t1);
}
pp_push(pc->opcode, str, CAN_FREE, pc->comment);
if (malloced)
efree((void *) fname);
}
break;
case Op_K_continue:
case Op_K_break:
case Op_K_nextfile:
case Op_K_next:
fprintf(prof_fp, "%s", op2str(pc->opcode));
pc = end_line(pc);
break;
case Op_K_return:
case Op_K_exit:
t1 = pp_pop();
if (is_binary(t1->type))
pp_parenthesize(t1);
if (pc->source_line > 0) { /* don't print implicit 'return' at end of function */
// avoid final trailing space to keep whiny users happy
if (t1->pp_str[0] != '\0')
fprintf(prof_fp, "%s %s", op2str(pc->opcode), t1->pp_str);
else
fprintf(prof_fp, "%s", op2str(pc->opcode));
pc = end_line(pc);
}
pp_free(t1);
break;
case Op_pop:
t1 = pp_pop();
fprintf(prof_fp, "%s", t1->pp_str);
if ((flags & IN_FOR_HEADER) == 0)
pc = end_line(pc);
pp_free(t1);
break;
case Op_line_range:
ip1 = pc + 1;
pprint(pc->nexti, ip1->condpair_left, NO_PPRINT_FLAGS);
pprint(ip1->condpair_left->nexti, ip1->condpair_right, NO_PPRINT_FLAGS);
t2 = pp_pop();
t1 = pp_pop();
str = pp_group3(t1->pp_str, ", ", t2->pp_str);
pp_free(t1);
pp_free(t2);
pp_push(Op_line_range, str, CAN_FREE, pc->comment);
pc = ip1->condpair_right;
break;
case Op_K_while:
ip1 = pc + 1;
indent(ip1->while_body->exec_count);
fprintf(prof_fp, "%s (", op2str(pc->opcode));
pprint(pc->nexti, ip1->while_body, NO_PPRINT_FLAGS);
t1 = pp_pop();
fprintf(prof_fp, "%s) {", t1->pp_str);
pp_free(t1);
ip1->while_body = end_line(ip1->while_body);
indent_in();
pprint(ip1->while_body->nexti, pc->target_break, NO_PPRINT_FLAGS);
indent_out();
indent(SPACEOVER);
fprintf(prof_fp, "}");
pc = end_line(pc->target_break);
break;
case Op_K_do:
ip1 = pc + 1;
indent(pc->nexti->exec_count);
fprintf(prof_fp, "%s {", op2str(pc->opcode));
end_line(pc->nexti);
skip_comment = true;
indent_in();
pprint(pc->nexti->nexti, ip1->doloop_cond, NO_PPRINT_FLAGS);
indent_out();
pprint(ip1->doloop_cond, pc->target_break, NO_PPRINT_FLAGS);
indent(SPACEOVER);
t1 = pp_pop();
fprintf(prof_fp, "} %s (%s)", op2str(Op_K_while), t1->pp_str);
if (pc->comment)
fprintf(prof_fp, "\t%s", pc->comment->memory->stptr);
else {
end_line(pc->target_break);
skip_comment = true;
}
pp_free(t1);
pc = pc->target_break;
break;
case Op_K_for:
{
INSTRUCTION *comment1 = NULL, *comment2 = NULL;
if (pc->comment != NULL) {
comment1 = pc->comment;
pc->comment = NULL;
if (comment1 != NULL && comment1->comment != NULL) {
comment2 = comment1->comment;
comment1->comment = NULL;
}
if (comment2 == NULL && comment1->memory->comment_type == FOR_COMMENT) {
comment2 = comment1;
comment2->memory->comment_type = EOL_COMMENT;
comment1 = NULL;
}
}
ip1 = pc + 1;
indent(ip1->forloop_body->exec_count);
fprintf(prof_fp, "%s (", op2str(pc->opcode));
/* If empty for looop header, print it a little more nicely. */
if ( pc->nexti->opcode == Op_no_op
&& ip1->forloop_cond == pc->nexti
&& pc->target_continue->opcode == Op_jmp
&& comment1 == NULL && comment2 == NULL) {
fprintf(prof_fp, ";;");
} else {
pprint(pc->nexti, ip1->forloop_cond, IN_FOR_HEADER);
fprintf(prof_fp, "; ");
if (comment1 != NULL) {
print_comment(comment1, 0);
indent(ip1->forloop_body->exec_count);
indent(1);
}
if (ip1->forloop_cond->opcode == Op_no_op &&
ip1->forloop_cond->nexti == ip1->forloop_body)
fprintf(prof_fp, "; ");
else {
pprint(ip1->forloop_cond, ip1->forloop_body, IN_FOR_HEADER);
t1 = pp_pop();
fprintf(prof_fp, "%s; ", t1->pp_str);
pp_free(t1);
}
if (comment2 != NULL) {
print_comment(comment2, 0);
indent(ip1->forloop_body->exec_count);
indent(1);
}
pprint(pc->target_continue, pc->target_break, IN_FOR_HEADER);
}
fprintf(prof_fp, ") {");
end_line(ip1->forloop_body);
skip_comment = true;
indent_in();
pprint(ip1->forloop_body->nexti, pc->target_continue, NO_PPRINT_FLAGS);
indent_out();
indent(SPACEOVER);
fprintf(prof_fp, "}");
end_line(pc->target_break);
skip_comment = true;
pc = pc->target_break;
}
break;
case Op_K_arrayfor:
{
char *array;
const char *item;
ip1 = pc + 1;
t1 = pp_pop();
array = t1->pp_str;
m = ip1->forloop_cond->array_var;
if (m->type == Node_param_list)
item = func_params[m->param_cnt].param;
else
item = m->vname;
indent(ip1->forloop_body->exec_count);
fprintf(prof_fp, "%s (%s%s%s) {", op2str(Op_K_arrayfor),
item, op2str(Op_in_array), array);
end_line(ip1->forloop_body);
skip_comment = true;
indent_in();
pp_free(t1);
pprint(ip1->forloop_body->nexti, pc->target_break, NO_PPRINT_FLAGS);
indent_out();
indent(SPACEOVER);
fprintf(prof_fp, "}");
end_line(pc->target_break);
skip_comment = true;
pc = pc->target_break;
}
break;
case Op_K_switch:
ip1 = pc + 1;
fprintf(prof_fp, "%s (", op2str(pc->opcode));
pprint(pc->nexti, ip1->switch_start, NO_PPRINT_FLAGS);