Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Fix {read,write}_gs_sized input operands to work always

This commit is contained in:
Bananymous 2024-03-08 22:12:33 +02:00
parent 54d0cb47cd
commit 1a1f9b1cf2
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/include/kernel/Processor.h
View File

@ -69,7 +69,7 @@ namespace Kernel
template<typename T> template<typename T>
static T read_gs_sized(uintptr_t offset) requires(sizeof(T) <= 8) static T read_gs_sized(uintptr_t offset) requires(sizeof(T) <= 8)
{ {
#define __ASM_INPUT(operation) operation " %%gs:(%[offset]), %[result]" : [result]"=rm"(result) : [offset]"rm"(offset) #define __ASM_INPUT(operation) operation " %%gs:%a[offset], %[result]" : [result]"=r"(result) : [offset]"ir"(offset)
T result; T result;
if constexpr(sizeof(T) == 8) if constexpr(sizeof(T) == 8)
asm volatile(__ASM_INPUT("movq")); asm volatile(__ASM_INPUT("movq"));
@ -86,7 +86,7 @@ namespace Kernel
template<typename T> template<typename T>
static void write_gs_sized(uintptr_t offset, T value) requires(sizeof(T) <= 8) static void write_gs_sized(uintptr_t offset, T value) requires(sizeof(T) <= 8)
{ {
#define __ASM_INPUT(operation) operation " %[value], %%gs:(%[offset])" :: [value]"rm"(value), [offset]"rm"(offset) : "memory" #define __ASM_INPUT(operation) operation " %[value], %%gs:%a[offset]" :: [value]"r"(value), [offset]"ir"(offset) : "memory"
if constexpr(sizeof(T) == 8) if constexpr(sizeof(T) == 8)
asm volatile(__ASM_INPUT("movq")); asm volatile(__ASM_INPUT("movq"));
if constexpr(sizeof(T) == 4) if constexpr(sizeof(T) == 4)