mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-27 05:50:43 +00:00
Allow unquoted = as the first character in ldscript input_list names
* ldlex.l (INPUTLIST): New start condition.
(comment pattern, ",", "(", ")", "AS_NEEDED")
({FILENAMECHAR1}{FILENAMECHAR}*, "-l"{FILENAMECHAR}+)
(quoted string pattern, whitespace pattern): Add INPUTLIST to
valid start conditions.
(<INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}*): New NAME rule.
(ldlex_inputlist): New start-condition-setter function.
* ldgram.y (input_list1): Rename from input_list. All recursive
use changed.
(input_list): New wrapper rule for input_list1, setting
INPUTLIST lexer state for the duration of parsing input_list1.
All this to say INPUT(=/path/to/file) and not be forced to use
INPUT("=/path/to/file") whenever there's a need to force a sysroot-
prefix. Still, IMHO it seems better to make use of a previously
invalid syntax and not only change the meaning of quoted =-prefixed
paths (though arguably that's not very useful before this patchset).
This got a little bit hairier than I'd expected: I had to add a new
lexer state (aka. start condition) to avoid a first "=" being lexed as
the token "=", despite that not making sense in constructs expecting
file-names in the first place. (The grammar doesn't allow for
expressions in any part of those lists.) I guess I *could* have made
it work using that token anyway, but I didn't like the idea that you
would be able to separate the "=" from the rest of the file-name with
whitespace.
This commit is contained in:
Hans-Peter Nilsson
parent
bfa2343443
commit
eeed9cc785
11
ld/ChangeLog
11
ld/ChangeLog
@ -1,5 +1,16 @@
|
||||
2014-10-15 Hans-Peter Nilsson <hp@axis.com>
|
||||
|
||||
* ldlex.l (INPUTLIST): New start condition.
|
||||
(comment pattern, ",", "(", ")", "AS_NEEDED")
|
||||
({FILENAMECHAR1}{FILENAMECHAR}*, "-l"{FILENAMECHAR}+)
|
||||
(quoted string pattern, whitespace pattern): Add INPUTLIST to
|
||||
valid start conditions.
|
||||
(<INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}*): New NAME rule.
|
||||
(ldlex_inputlist): New start-condition-setter function.
|
||||
* ldgram.y (input_list1): Rename from input_list. All recursive
|
||||
use changed.
|
||||
(input_list): New wrapper rule for input_list1, setting
|
||||
INPUTLIST lexer state for the duration of parsing input_list1.
|
||||
* ldlang.c (lang_add_input_file): If the first character in the
|
||||
filename is '=', prepend the sysroot and force the context of that
|
||||
input file to non-sysroot.
|
||||
|
||||
23
ld/ldgram.y
23
ld/ldgram.y
@ -365,38 +365,43 @@ ifile_p1:
|
||||
;
|
||||
|
||||
input_list:
|
||||
{ ldlex_inputlist(); }
|
||||
input_list1
|
||||
{ ldlex_popstate(); }
|
||||
|
||||
input_list1:
|
||||
NAME
|
||||
{ lang_add_input_file($1,lang_input_file_is_search_file_enum,
|
||||
(char *)NULL); }
|
||||
| input_list ',' NAME
|
||||
| input_list1 ',' NAME
|
||||
{ lang_add_input_file($3,lang_input_file_is_search_file_enum,
|
||||
(char *)NULL); }
|
||||
| input_list NAME
|
||||
| input_list1 NAME
|
||||
{ lang_add_input_file($2,lang_input_file_is_search_file_enum,
|
||||
(char *)NULL); }
|
||||
| LNAME
|
||||
{ lang_add_input_file($1,lang_input_file_is_l_enum,
|
||||
(char *)NULL); }
|
||||
| input_list ',' LNAME
|
||||
| input_list1 ',' LNAME
|
||||
{ lang_add_input_file($3,lang_input_file_is_l_enum,
|
||||
(char *)NULL); }
|
||||
| input_list LNAME
|
||||
| input_list1 LNAME
|
||||
{ lang_add_input_file($2,lang_input_file_is_l_enum,
|
||||
(char *)NULL); }
|
||||
| AS_NEEDED '('
|
||||
{ $<integer>$ = input_flags.add_DT_NEEDED_for_regular;
|
||||
input_flags.add_DT_NEEDED_for_regular = TRUE; }
|
||||
input_list ')'
|
||||
input_list1 ')'
|
||||
{ input_flags.add_DT_NEEDED_for_regular = $<integer>3; }
|
||||
| input_list ',' AS_NEEDED '('
|
||||
| input_list1 ',' AS_NEEDED '('
|
||||
{ $<integer>$ = input_flags.add_DT_NEEDED_for_regular;
|
||||
input_flags.add_DT_NEEDED_for_regular = TRUE; }
|
||||
input_list ')'
|
||||
input_list1 ')'
|
||||
{ input_flags.add_DT_NEEDED_for_regular = $<integer>5; }
|
||||
| input_list AS_NEEDED '('
|
||||
| input_list1 AS_NEEDED '('
|
||||
{ $<integer>$ = input_flags.add_DT_NEEDED_for_regular;
|
||||
input_flags.add_DT_NEEDED_for_regular = TRUE; }
|
||||
input_list ')'
|
||||
input_list1 ')'
|
||||
{ input_flags.add_DT_NEEDED_for_regular = $<integer>4; }
|
||||
;
|
||||
|
||||
|
||||
@ -161,6 +161,7 @@ extern int yylex (void);
|
||||
extern void lex_push_file (FILE *, const char *, unsigned int);
|
||||
extern void lex_redirect (const char *, const char *, unsigned int);
|
||||
extern void ldlex_script (void);
|
||||
extern void ldlex_inputlist (void);
|
||||
extern void ldlex_mri_script (void);
|
||||
extern void ldlex_version_script (void);
|
||||
extern void ldlex_version_file (void);
|
||||
|
||||
32
ld/ldlex.l
32
ld/ldlex.l
@ -77,6 +77,7 @@ static void lex_warn_invalid (char *where, char *what);
|
||||
/* STATES
|
||||
EXPRESSION definitely in an expression
|
||||
SCRIPT definitely in a script
|
||||
INPUTLIST definitely in a script, a filename-list
|
||||
BOTH either EXPRESSION or SCRIPT
|
||||
DEFSYMEXP in an argument to -defsym
|
||||
MRI in an MRI script
|
||||
@ -109,6 +110,7 @@ V_TAG [.$_a-zA-Z][._a-zA-Z0-9]*
|
||||
V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
|
||||
%s SCRIPT
|
||||
%s INPUTLIST
|
||||
%s EXPRESSION
|
||||
%s BOTH
|
||||
%s DEFSYMEXP
|
||||
@ -134,7 +136,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
}
|
||||
}
|
||||
|
||||
<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>"/*" { comment (); }
|
||||
<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*" { comment (); }
|
||||
|
||||
|
||||
<DEFSYMEXP>"-" { RTOKEN('-');}
|
||||
@ -221,7 +223,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"," { RTOKEN(',');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"," { RTOKEN(',');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"&" { RTOKEN('&');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"|" { RTOKEN('|');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"~" { RTOKEN('~');}
|
||||
@ -236,8 +238,8 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"=" { RTOKEN('=');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"}" { RTOKEN('}') ; }
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"{" { RTOKEN('{'); }
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>")" { RTOKEN(')');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>"(" { RTOKEN('(');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>")" { RTOKEN(')');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"(" { RTOKEN('(');}
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); }
|
||||
<BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');}
|
||||
<BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
|
||||
@ -272,7 +274,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
<BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);}
|
||||
<BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);}
|
||||
<EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);}
|
||||
<EXPRESSION,BOTH,SCRIPT>"AS_NEEDED" { RTOKEN(AS_NEEDED);}
|
||||
<EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED" { RTOKEN(AS_NEEDED);}
|
||||
<EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);}
|
||||
<BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);}
|
||||
<BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);}
|
||||
@ -373,11 +375,16 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
}
|
||||
|
||||
|
||||
<BOTH>{FILENAMECHAR1}{FILENAMECHAR}* {
|
||||
<BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* {
|
||||
yylval.name = xstrdup (yytext);
|
||||
return NAME;
|
||||
}
|
||||
<BOTH>"-l"{FILENAMECHAR}+ {
|
||||
<INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* {
|
||||
/* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */
|
||||
yylval.name = xstrdup (yytext);
|
||||
return NAME;
|
||||
}
|
||||
<BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ {
|
||||
yylval.name = xstrdup (yytext + 2);
|
||||
return LNAME;
|
||||
}
|
||||
@ -406,7 +413,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
}
|
||||
}
|
||||
|
||||
<EXPRESSION,BOTH,SCRIPT,VERS_NODE>"\""[^\"]*"\"" {
|
||||
<EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" {
|
||||
/* No matter the state, quotes
|
||||
give what's inside */
|
||||
yylval.name = xstrdup (yytext + 1);
|
||||
@ -447,7 +454,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
|
||||
|
||||
<VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ }
|
||||
|
||||
<VERS_START,VERS_NODE,VERS_SCRIPT>[ \t\r]+ { /* Eat up whitespace */ }
|
||||
<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ }
|
||||
|
||||
<<EOF>> {
|
||||
include_stack_ptr--;
|
||||
@ -565,6 +572,13 @@ ldlex_script (void)
|
||||
BEGIN (SCRIPT);
|
||||
}
|
||||
|
||||
void
|
||||
ldlex_inputlist (void)
|
||||
{
|
||||
*(state_stack_p)++ = yy_start;
|
||||
BEGIN (INPUTLIST);
|
||||
}
|
||||
|
||||
void
|
||||
ldlex_mri_script (void)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user