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x86: make symbol quotation check consistent in i386_att_operand()

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When d02603dc20 ("Allow symbol and label names to be enclosed in
double quotes") added the check for a leading double quote to
i386_att_operand(), it missed a second similar check after having found
a segment override. To avoid the two checks going out of sync again,
introduce an inline helper.
This commit is contained in:
Jan Beulich 2021-06-07 12:03:32 +02:00
parent c8d541e2e7
commit 9d299bea8c
5 changed files with 44 additions and 7 deletions
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7
gas/ChangeLog
View file

@ -1,3 +1,10 @@
2021-06-07 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (starts_memory_operand): New.
(i386_att_operand): Use it.
* testsuite/gas/i386/quoted.s, testsuite/gas/i386/quoted.d: New.
* testsuite/gas/i386/i386.exp: Run new test.
2021-06-07 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (i386_att_operand): Flip checking for '*' and

17
gas/config/tc-i386.c
View file

@ -11368,6 +11368,14 @@ maybe_adjust_templates (void)
return 1;
}
static INLINE bool starts_memory_operand (char c)
{
return is_digit_char (c)
|| is_identifier_char (c)
|| c == '"'
|| c == '(';
}
/* Parse OPERAND_STRING into the i386_insn structure I. Returns zero
on error. */
@ -11422,9 +11430,7 @@ i386_att_operand (char *operand_string)
i.jumpabsolute = true;
}
if (!is_digit_char (*op_string)
&& !is_identifier_char (*op_string)
&& *op_string != '(')
if (!starts_memory_operand (*op_string))
{
as_bad (_("bad memory operand `%s'"), op_string);
return 0;
@ -11474,10 +11480,7 @@ i386_att_operand (char *operand_string)
/* If it is a RC or SAE immediate, do nothing. */
;
}
else if (is_digit_char (*op_string)
|| is_identifier_char (*op_string)
|| *op_string == '"'
|| *op_string == '(')
else if (starts_memory_operand (*op_string))
{
/* This is a memory reference of some sort. */
char *base_string;

1
gas/testsuite/gas/i386/i386.exp
View file

@ -96,6 +96,7 @@ if [gas_32_check] then {
run_dump_test "equ"
run_list_test "equ-bad"
run_dump_test "divide"
run_dump_test "quoted"
run_dump_test "padlock"
run_dump_test "crx"
run_list_test "cr-err" ""

16
gas/testsuite/gas/i386/quoted.d Normal file
View file

@ -0,0 +1,16 @@
#objdump: -drw
#name: i386 quoted symbols
.*: +file format .*
Disassembly of section .text:
0+ <quoted>:
[ ]*[a-f0-9]+:[ ]*a1 00 00 00 00[ ]+mov 0x0,%eax [a-f0-9]+: (R_386_|dir)32 x\(y\)
[ ]*[a-f0-9]+:[ ]*8b 80 00 00 00 00[ ]+mov 0x0\(%eax\),%eax [a-f0-9]+: (R_386_|dir)32 x\(y\)
[ ]*[a-f0-9]+:[ ]*26 a1 00 00 00 00[ ]+mov %es:0x0,%eax [a-f0-9]+: (R_386_|dir)32 x\(y\)
[ ]*[a-f0-9]+:[ ]*26 8b 80 00 00 00 00[ ]+mov %es:0x0\(%eax\),%eax [a-f0-9]+: (R_386_|dir)32 x\(y\)
[ ]*[a-f0-9]+:[ ]*ff 15 00 00 00 00[ ]+call \*0x0 [a-f0-9]+: (R_386_|dir)32 x\(y\)
[ ]*[a-f0-9]+:[ ]*26 ff 15 00 00 00 00[ ]+call \*%es:0x0 [a-f0-9]+: (R_386_|dir)32 x\(y\)
[ ]*[a-f0-9]+:[ ]*26 ff 15 00 00 00 00[ ]+call \*%es:0x0 [a-f0-9]+: (R_386_|dir)32 x\(y\)
#pass

10
gas/testsuite/gas/i386/quoted.s Normal file
View file

@ -0,0 +1,10 @@
.text
quoted:
mov "x(y)", %eax
mov "x(y)"(%eax), %eax
mov %es:"x(y)", %eax
mov %es:"x(y)"(%eax), %eax
call *"x(y)"
call *%es:"x(y)"
call %es:*"x(y)"