mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 19:57:44 +00:00
Kernel: Don't build with -mregparm=3
It was really confusing to have different calling conventions in kernel and userspace. Also this has prevented us from linking with libgcc.
This commit is contained in:
parent
01b21e5e05
commit
1c6f8d3cbd
6 changed files with 54 additions and 52 deletions
|
@ -251,16 +251,15 @@ inline u32 read_fs_u32(u32 offset)
|
|||
u32 val;
|
||||
asm volatile(
|
||||
"movl %%fs:%a[off], %k[val]"
|
||||
: [val] "=r" (val)
|
||||
: [off] "ir" (offset));
|
||||
: [ val ] "=r"(val)
|
||||
: [ off ] "ir"(offset));
|
||||
return val;
|
||||
}
|
||||
|
||||
inline void write_fs_u32(u32 offset, u32 val)
|
||||
{
|
||||
asm volatile(
|
||||
"movl %k[val], %%fs:%a[off]"
|
||||
:: [off] "ir" (offset), [val] "ir" (val)
|
||||
"movl %k[val], %%fs:%a[off]" ::[off] "ir"(offset), [ val ] "ir"(val)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
|
@ -383,7 +382,6 @@ struct [[gnu::packed]] RegisterDump
|
|||
u16 ss_if_crossRing;
|
||||
};
|
||||
|
||||
|
||||
struct [[gnu::aligned(16)]] FPUState
|
||||
{
|
||||
u8 buffer[512];
|
||||
|
@ -397,8 +395,8 @@ inline constexpr u32 page_base_of(u32 address)
|
|||
class CPUID {
|
||||
public:
|
||||
CPUID(u32 function) { asm volatile("cpuid"
|
||||
: "=a"(m_eax), "=b"(m_ebx), "=c"(m_ecx), "=d"(m_edx)
|
||||
: "a"(function), "c"(0)); }
|
||||
: "=a"(m_eax), "=b"(m_ebx), "=c"(m_ecx), "=d"(m_edx)
|
||||
: "a"(function), "c"(0)); }
|
||||
u32 eax() const { return m_eax; }
|
||||
u32 ebx() const { return m_ebx; }
|
||||
u32 ecx() const { return m_ecx; }
|
||||
|
@ -459,21 +457,20 @@ public:
|
|||
MSR(const MSR&) = delete;
|
||||
MSR& operator=(const MSR&) = delete;
|
||||
|
||||
MSR(uint32_t msr):
|
||||
m_msr(msr)
|
||||
MSR(uint32_t msr)
|
||||
: m_msr(msr)
|
||||
{
|
||||
}
|
||||
|
||||
void get(u32& low, u32& high)
|
||||
{
|
||||
asm volatile("rdmsr"
|
||||
: "=a"(low), "=d"(high)
|
||||
: "c"(m_msr));
|
||||
: "=a"(low), "=d"(high)
|
||||
: "c"(m_msr));
|
||||
}
|
||||
|
||||
void set(u32 low, u32 high)
|
||||
{
|
||||
asm volatile("wrmsr"
|
||||
:: "a"(low), "d"(high), "c"(m_msr));
|
||||
asm volatile("wrmsr" ::"a"(low), "d"(high), "c"(m_msr));
|
||||
}
|
||||
};
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue