void cancel_call(struct cancellation *c)
{
struct exception_frame *frame;
uint32_t *new_frame;
/* Bail if the cancellable context is inactive/cancelled. */
if (c->sp == NULL)
return;
/* Switch to exception context if we are not there already. */
if (!in_exception()) {
exc_cancel = c;
sv_call(0);
ASSERT(0); /* unreachable */
}
/* Modify return frame: Jump to exit of call_cancellable_fn() with
* return code -1 and clean xPSR. */
frame = (struct exception_frame *)read_special(psp);
frame->r0 = -1;
frame->pc = (uint32_t)do_cancel;
frame->psr &= 1u<<24; /* Preserve Thumb mode; clear everything else */
/* Find new frame address, set STKALIGN if misaligned. */
new_frame = c->sp - 8;
if ((uint32_t)new_frame & 4) {
new_frame--;
frame->psr |= 1u<<9;
}
/* Copy the stack frame and update Process SP. */
memmove(new_frame, frame, 32);
write_special(psp, new_frame);
/* Do this work at most once per invocation of call_cancellable_fn. */
c->sp = NULL;
}
int
main (int argc, char **argv)
{
FILE *fp;
char line[LINESIZE];
int lnr = 0;
const char *fname, *s;
char *p1, *p2;
const char *config_h;
if (argc)
{
argc--; argv++;
}
if (argc != 6)
{
fputs ("usage: " PGM
" host_os host_triplet template.h config.h"
" version version_number\n",
stderr);
return 1;
}
host_os = argv[0];
host_triplet = argv[1];
fname = argv[2];
config_h = argv[3];
hdr_version = argv[4];
hdr_version_number = argv[5];
srcdir = malloc (strlen (fname) + 2 + 1);
if (!srcdir)
{
fputs (PGM ": out of core\n", stderr);
return 1;
}
strcpy (srcdir, fname);
p1 = strrchr (srcdir, '/');
if (p1)
p1[1] = 0;
else
strcpy (srcdir, "./");
if (parse_config_h (config_h))
return 1;
fp = fopen (fname, "r");
if (!fp)
{
fprintf (stderr, "%s:%d: can't open file: %s",
fname, lnr, strerror (errno));
return 1;
}
while (fgets (line, LINESIZE, fp))
{
size_t n = strlen (line);
lnr++;
if (!n || line[n-1] != '\n')
{
fprintf (stderr,
"%s:%d: trailing linefeed missing, line too long or "
"embedded nul character\n", fname, lnr);
break;
}
line[--n] = 0;
p1 = strchr (line, '@');
p2 = p1? strchr (p1+1, '@') : NULL;
if (!p1 || !p2 || p2-p1 == 1)
{
puts (line);
continue;
}
*p1++ = 0;
*p2++ = 0;
fputs (line, stdout);
if (!strcmp (p1, "configure_input"))
{
s = strrchr (fname, '/');
printf ("Do not edit. Generated from %s for %s.",
s? s+1 : fname, host_triplet);
fputs (p2, stdout);
}
else if (!write_special (fname, lnr, p1))
{
putchar ('@');
fputs (p1, stdout);
putchar ('@');
fputs (p2, stdout);
}
else if (p2 && *p2)
{
fputs (p2, stdout);
}
putchar ('\n');
}
if (ferror (fp))
{
fprintf (stderr, "%s:%d: error reading file: %s\n",
fname, lnr, strerror (errno));
return 1;
}
fputs ("/*\n"
"Loc" "al Variables:\n"
"buffer-read-only: t\n"
"End:\n"
"*/\n", stdout);
if (ferror (stdout))
{
fprintf (stderr, PGM ": error writing to stdout: %s\n", strerror (errno));
return 1;
}
fclose (fp);
return 0;
}
void __hyp_text __banked_restore_state(struct kvm_cpu_context *ctxt)
{
write_special(ctxt->gp_regs.usr_regs.ARM_sp, SP_usr);
write_special(ctxt->gp_regs.usr_regs.ARM_pc, ELR_hyp);
write_special(ctxt->gp_regs.usr_regs.ARM_cpsr, SPSR_cxsf);
write_special(ctxt->gp_regs.KVM_ARM_SVC_sp, SP_svc);
write_special(ctxt->gp_regs.KVM_ARM_SVC_lr, LR_svc);
write_special(ctxt->gp_regs.KVM_ARM_SVC_spsr, SPSR_svc);
write_special(ctxt->gp_regs.KVM_ARM_ABT_sp, SP_abt);
write_special(ctxt->gp_regs.KVM_ARM_ABT_lr, LR_abt);
write_special(ctxt->gp_regs.KVM_ARM_ABT_spsr, SPSR_abt);
write_special(ctxt->gp_regs.KVM_ARM_UND_sp, SP_und);
write_special(ctxt->gp_regs.KVM_ARM_UND_lr, LR_und);
write_special(ctxt->gp_regs.KVM_ARM_UND_spsr, SPSR_und);
write_special(ctxt->gp_regs.KVM_ARM_IRQ_sp, SP_irq);
write_special(ctxt->gp_regs.KVM_ARM_IRQ_lr, LR_irq);
write_special(ctxt->gp_regs.KVM_ARM_IRQ_spsr, SPSR_irq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_r8, R8_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_r9, R9_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_r10, R10_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_fp, R11_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_ip, R12_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_sp, SP_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_lr, LR_fiq);
write_special(ctxt->gp_regs.KVM_ARM_FIQ_spsr, SPSR_fiq);
}