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Kernel: Rename the getpid() syscall to getprocid()

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Now, we have one single system call to fetch all sorts of identifiers:
PID, PPID, UID, GID; EUID, EGID, and more...
This commit is contained in:
apio 2022-10-18 17:36:17 +02:00
parent a9d3bdba6f
commit 52d391507d
4 changed files with 27 additions and 8 deletions
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4
kernel/include/sys/Syscall.h
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@ -7,7 +7,7 @@
#define SYS_sleep 2
#define SYS_write 3
#define SYS_paint 4
#define SYS_getpid 5
#define SYS_getprocid 5
#define SYS_mmap 6
#define SYS_munmap 7
#define SYS_open 8
@ -33,7 +33,7 @@ void sys_yield(Context* context);
void sys_sleep(Context* context, uint64_t ms);
void sys_write(Context* context, int fd, size_t size, const char* addr);
void sys_paint(Context* context, uint64_t x, uint64_t y, uint64_t w, uint64_t h, uint64_t col);
void sys_getpid(Context* context);
void sys_getprocid(Context* context, int field);
void sys_mmap(Context* context, void* address, size_t size, int prot);
void sys_munmap(Context* context, void* address, size_t size);
void sys_open(Context* context, const char* filename, int flags);

2
kernel/src/sys/Syscall.cpp
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@ -16,7 +16,7 @@ void Syscall::entry(Context* context)
case SYS_sleep: sys_sleep(context, context->rdi); break;
case SYS_write: sys_write(context, (int)context->rdi, context->rsi, (const char*)context->rdx); break;
case SYS_paint: sys_paint(context, context->rdi, context->rsi, context->rdx, context->r10, context->r8); break;
case SYS_getpid: sys_getpid(context); break;
case SYS_getprocid: sys_getprocid(context, (int)context->rdi); break;
case SYS_mmap: sys_mmap(context, (void*)context->rdi, context->rsi, (int)context->rdx); break;
case SYS_munmap: sys_munmap(context, (void*)context->rdi, context->rsi); break;
case SYS_open: sys_open(context, (const char*)context->rdi, (int)context->rsi); break;

24
kernel/src/sys/id.cpp Normal file
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@ -0,0 +1,24 @@
#include "errno.h"
#include "thread/Scheduler.h"
#define ID_PID 0
#define ID_PPID 1
void sys_getprocid(Context* context, int field)
{
if (field == ID_PID)
{
context->rax = Scheduler::current_task()->id;
return;
}
else if (field == ID_PPID)
{
context->rax = Scheduler::current_task()->ppid;
return;
}
else
{
context->rax = -EINVAL;
return;
}
}

5
kernel/src/sys/sched.cpp
View File

@ -19,8 +19,3 @@ void sys_sleep(Context* context, uint64_t ms)
task->state = task->Sleeping;
Scheduler::task_yield(context);
}
void sys_getpid(Context* context)
{
context->rax = Scheduler::current_task()->id;
}