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authorH.J. Lu <hjl.tools@gmail.com>2017-10-09 04:17:10 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-09 04:17:24 -0700
commit76f361eb4934dcda0626517c311b34fbc92d09b9 (patch)
treed143cd18021208ec0d2365bf8c3b4134ead314fc /ld
parent5d3b558acd329de9dcbd63d9bb04242b31fad490 (diff)
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ld: Don't allow '~' as the first char in symbol name
Don't allow '~' as the first character in symbol name in linker script. PR ld/22267 * ldlex.l (SYMBOLNAMECHAR1) New. (DEFSYMEXP): Replace FILENAMECHAR1 with SYMBOLNAMECHAR1. (EXPRESSION): Likewise. * testsuite/ld-scripts/expr.exp: Run pr22267. * testsuite/ld-scripts/pr22267.d: New file. * testsuite/ld-scripts/pr22267.s: Likewise. * testsuite/ld-scripts/pr22267.t: Likewise.
Diffstat (limited to 'ld')
-rw-r--r--ld/ChangeLog11
-rw-r--r--ld/ldlex.l5
-rw-r--r--ld/testsuite/ld-scripts/expr.exp1
-rw-r--r--ld/testsuite/ld-scripts/pr22267.d7
-rw-r--r--ld/testsuite/ld-scripts/pr22267.s10
-rw-r--r--ld/testsuite/ld-scripts/pr22267.t4
6 files changed, 36 insertions, 2 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 55e36a5..18d4b1e 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,14 @@
+2017-10-09 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/22267
+ * ldlex.l (SYMBOLNAMECHAR1) New.
+ (DEFSYMEXP): Replace FILENAMECHAR1 with SYMBOLNAMECHAR1.
+ (EXPRESSION): Likewise.
+ * testsuite/ld-scripts/expr.exp: Run pr22267.
+ * testsuite/ld-scripts/pr22267.d: New file.
+ * testsuite/ld-scripts/pr22267.s: Likewise.
+ * testsuite/ld-scripts/pr22267.t: Likewise.
+
2017-10-07 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ld-elf/merge.d: Don't expect to fail for sparc.
diff --git a/ld/ldlex.l b/ld/ldlex.l
index ba618ec..795a4d7 100644
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -94,6 +94,7 @@ static void lex_warn_invalid (char *where, char *what);
CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~]
CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~]
FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~]
+SYMBOLNAMECHAR1 [_a-zA-Z\/\.\\\$\_]
SYMBOLCHARN [_a-zA-Z\/\.\\\$\_\~0-9]
FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
WILDCHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!]
@@ -136,7 +137,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
<DEFSYMEXP>"-" { RTOKEN('-');}
<DEFSYMEXP>"+" { RTOKEN('+');}
-<DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = xstrdup (yytext); return NAME; }
+<DEFSYMEXP>{SYMBOLNAMECHAR1}{SYMBOLCHARN}* { yylval.name = xstrdup (yytext); return NAME; }
<DEFSYMEXP>"=" { RTOKEN('='); }
<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
@@ -390,7 +391,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
yylval.name = xstrdup (yytext + 2);
return LNAME;
}
-<EXPRESSION>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
+<EXPRESSION>{SYMBOLNAMECHAR1}{NOCFILENAMECHAR}* {
yylval.name = xstrdup (yytext);
return NAME;
}
diff --git a/ld/testsuite/ld-scripts/expr.exp b/ld/testsuite/ld-scripts/expr.exp
index 9db5366..62d45dc 100644
--- a/ld/testsuite/ld-scripts/expr.exp
+++ b/ld/testsuite/ld-scripts/expr.exp
@@ -25,6 +25,7 @@ run_dump_test sane1
run_dump_test assign-loc
run_dump_test pr14962
run_dump_test pr14962-2
+run_dump_test pr22267
set old_ldflags $LDFLAGS
if { [istarget spu*-*-*] } {
diff --git a/ld/testsuite/ld-scripts/pr22267.d b/ld/testsuite/ld-scripts/pr22267.d
new file mode 100644
index 0000000..f66d4be
--- /dev/null
+++ b/ld/testsuite/ld-scripts/pr22267.d
@@ -0,0 +1,7 @@
+#ld: -T pr22267.t
+#nm: -n
+
+# Some targets may zero-extend 32-bit address to 64 bits.
+#...
+0*f+00 A foo
+#pass
diff --git a/ld/testsuite/ld-scripts/pr22267.s b/ld/testsuite/ld-scripts/pr22267.s
new file mode 100644
index 0000000..c0a5cda
--- /dev/null
+++ b/ld/testsuite/ld-scripts/pr22267.s
@@ -0,0 +1,10 @@
+ .globl main
+ .globl start
+ .globl _start
+ .globl __start
+ .text
+main:
+start:
+_start:
+__start:
+ .dc.a foo
diff --git a/ld/testsuite/ld-scripts/pr22267.t b/ld/testsuite/ld-scripts/pr22267.t
new file mode 100644
index 0000000..a075405
--- /dev/null
+++ b/ld/testsuite/ld-scripts/pr22267.t
@@ -0,0 +1,4 @@
+SECTIONS
+{
+ foo = ~0xFF;
+}