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really revert endpoint_t -> int

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debugging info on panic: decode segment selectors and descriptors, now moved
to arch-specific part, prototypes added; sanity checking in debug.h made
optional with vmassert().
This commit is contained in:
Ben Gras
2009-10-05 15:47:23 +00:00
parent 30804b9ed7
commit 24e1e83028
8 changed files with 35 additions and 39 deletions
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1
kernel/arch/i386/memory.c
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@@ -37,6 +37,7 @@ PRIVATE int nfreepdes = 0, freepdes[WANT_FREEPDES], inusepde = NOPDE;
FORWARD _PROTOTYPE( u32_t phys_get32, (vir_bytes v) );
FORWARD _PROTOTYPE( void vm_enable_paging, (void) );
FORWARD _PROTOTYPE( void set_cr3, (void) );
/* *** Internal VM Functions *** */

4
kernel/arch/i386/proto.h
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@@ -84,6 +84,7 @@ _PROTOTYPE( void phys_memset, (phys_bytes ph, u32_t c, phys_bytes bytes) );
/* protect.c */
_PROTOTYPE( void prot_init, (void) );
_PROTOTYPE( void idt_init, (void) );
_PROTOTYPE( void init_codeseg, (struct segdesc_s *segdp, phys_bytes base,
vir_bytes size, int privilege) );
_PROTOTYPE( void init_dataseg, (struct segdesc_s *segdp, phys_bytes base,
@@ -91,6 +92,9 @@ _PROTOTYPE( void init_dataseg, (struct segdesc_s *segdp, phys_bytes base,
_PROTOTYPE( void enable_iop, (struct proc *pp) );
_PROTOTYPE( int prot_set_kern_seg_limit, (vir_bytes limit) );
_PROTOTYPE( void printseg, (char *banner, int iscs, struct proc *pr, u32_t selector) );
_PROTOTYPE( u32_t, read_cs(void));
_PROTOTYPE( u32_t, read_ds(void));
_PROTOTYPE( u32_t, read_ss(void));
/* prototype of an interrupt vector table entry */
struct gate_table_s {

11
kernel/arch/i386/system.c
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@@ -30,6 +30,17 @@ PUBLIC void arch_shutdown(int how)
/* Mask all interrupts, including the clock. */
outb( INT_CTLMASK, ~0);
if(minix_panicing) {
/* We're panicing? Then retrieve and decode currently
* loaded segment selectors.
*/
printseg("cs: ", 1, proc_ptr, read_cs());
printseg("ds: ", 0, proc_ptr, read_ds());
if(read_ds() != read_ss()) {
printseg("ss: ", 0, NULL, read_ss());
}
}
if(how != RBT_RESET) {
/* return to boot monitor */