On 23.01.2024 02:27, LIU Hao wrote:
> 在 2024-01-22 16:39, Jan Beulich 写道:
>> Right, I did some work in that direction a while ago. But iirc there are
>> still cases left to be addressed.
>
> Attached is a draft patch for GCC, bootstrapped on {i686,x86_64}-w64-mingw32
> with GCC 13.2 and
> binutils 2.41.0.
Right, but this is very "draft". You can't blindly assume the gas you use
actually can deal with quotation.
> This addresses the issue when a bad name exists in the same translation unit.
> In the case of an
> external symbol there's still an error:
>
> ```
> extern int bx;
> int get(const char* p) { return p[bx]; }
> ```
>
> ```
> lh_mouse@lhmouse-pc ~/Desktop $ x86_64-w64-mingw32-gcc -S -o - -masm=intel
> test.c | fgrep bx
> mov rax, QWORD PTR .refptr.bx[rip]
> .section .rdata$.refptr.bx, "dr"
> .globl .refptr.bx
> .refptr.bx:
> .quad bx
Sure, this one needs quoting then, too.
Jan
> lh_mouse@lhmouse-pc ~/Desktop $ x86_64-w64-mingw32-gcc -masm=intel test.c |
> fgrep bx
> C:\Users\lh_mouse\AppData\Local\Temp\ccuyuu6c.s: Assembler messages:
> C:\Users\lh_mouse\AppData\Local\Temp\ccuyuu6c.s:29: Error: invalid use of
> register
> C:\Users\lh_mouse\AppData\Local\Temp\ccuyuu6c.s:29: Warning: register value
> used as expression
> lh_mouse@lhmouse-pc ~/Desktop $
> ```
>
>
>
>
