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Removed useless global variable sys_call_code

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- we have to same information in the message (m_ptr) where needed
This commit is contained in:
Tomas Hruby 2010-02-03 18:17:01 +00:00
parent 15b0595013
commit 8f82633fa2
3 changed files with 4 additions and 6 deletions
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1
kernel/glo.h
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@ -42,7 +42,6 @@ EXTERN u32_t system_hz; /* HZ value */
EXTERN reg_t mon_ss, mon_sp; /* boot monitor stack */ EXTERN reg_t mon_ss, mon_sp; /* boot monitor stack */
EXTERN int mon_return; /* true if we can return to monitor */ EXTERN int mon_return; /* true if we can return to monitor */
EXTERN int do_serial_debug; EXTERN int do_serial_debug;
EXTERN int sys_call_code; /* kernel call number in SYSTEM */
EXTERN time_t boottime; EXTERN time_t boottime;
EXTERN char params_buffer[512]; /* boot monitor parameters */ EXTERN char params_buffer[512]; /* boot monitor parameters */
EXTERN int minix_panicing; EXTERN int minix_panicing;

3
kernel/system.c
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@ -91,8 +91,7 @@ PUBLIC void sys_task()
minix_panic("receive() failed", r); minix_panic("receive() failed", r);
} }
sys_call_code = (unsigned) m.m_type; call_nr = m.m_type - KERNEL_CALL;
call_nr = sys_call_code - KERNEL_CALL;
who_e = m.m_source; who_e = m.m_source;
okendpt(who_e, &who_p); okendpt(who_e, &who_p);
caller_ptr = proc_addr(who_p); caller_ptr = proc_addr(who_p);

6
kernel/system/do_safecopy.c
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@ -337,15 +337,15 @@ PUBLIC int do_safecopy(struct proc * caller, message * m_ptr)
static int access, src_seg, dst_seg; static int access, src_seg, dst_seg;
/* Set src and dst parameters. */ /* Set src and dst parameters. */
if(sys_call_code == SYS_SAFECOPYFROM) { if(m_ptr->m_type == SYS_SAFECOPYFROM) {
src_seg = D; src_seg = D;
dst_seg = m_ptr->SCP_SEG; dst_seg = m_ptr->SCP_SEG;
access = CPF_READ; access = CPF_READ;
} else if(sys_call_code == SYS_SAFECOPYTO) { } else if(m_ptr->m_type == SYS_SAFECOPYTO) {
src_seg = m_ptr->SCP_SEG; src_seg = m_ptr->SCP_SEG;
dst_seg = D; dst_seg = D;
access = CPF_WRITE; access = CPF_WRITE;
} else minix_panic("Impossible system call nr. ", sys_call_code); } else minix_panic("Impossible system call nr. ", m_ptr->m_type);
return safecopy(caller, m_ptr->SCP_FROM_TO, caller->p_endpoint, return safecopy(caller, m_ptr->SCP_FROM_TO, caller->p_endpoint,
m_ptr->SCP_GID, src_seg, dst_seg, m_ptr->SCP_BYTES, m_ptr->SCP_GID, src_seg, dst_seg, m_ptr->SCP_BYTES,