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/* Reduced from qemu-7.2.0's hw/intc/omap_intc.c as per
null-deref-pr108806.c, but with the:
struct omap_intr_handler_bank_s* bank = NULL;
converted to:
struct omap_intr_handler_bank_s* bank;
*/
typedef unsigned char __uint8_t;
typedef unsigned int __uint32_t;
typedef unsigned long int __uint64_t;
typedef __uint8_t uint8_t;
typedef __uint32_t uint32_t;
typedef __uint64_t uint64_t;
typedef uint64_t hwaddr;
typedef struct omap_intr_handler_s omap_intr_handler;
struct omap_intr_handler_bank_s
{
uint32_t irqs;
uint32_t inputs;
uint32_t mask;
uint32_t fiq;
uint32_t sens_edge;
uint32_t swi;
unsigned char priority[32];
};
struct omap_intr_handler_s
{
/* [...snip...] */
unsigned char nbanks;
/* [...snip...] */
int sir_intr[2];
int autoidle;
uint32_t mask;
struct omap_intr_handler_bank_s bank[3];
};
uint64_t
omap2_inth_read(struct omap_intr_handler_s* s, int offset)
{
int bank_no, line_no;
struct omap_intr_handler_bank_s* bank;
if ((offset & 0xf80) == 0x80) {
bank_no = (offset & 0x60) >> 5;
if (bank_no < s->nbanks) {
offset &= ~0x60;
bank = &s->bank[bank_no];
} else {
return 0;
}
}
switch (offset) {
case 0x10:
return (s->autoidle >> 2) & 1;
case 0x14:
return 1;
case 0x40:
return s->sir_intr[0];
case 0x44:
return s->sir_intr[1];
case 0x48:
return (!s->mask) << 2;
case 0x4c:
return 0;
case 0x50:
return s->autoidle & 3;
case 0x80:
return bank->inputs; /* { dg-bogus "use of uninitialized value 'bank'" "PR analyzer/108806" } */
case 0x84:
return bank->mask; /* { dg-bogus "use of uninitialized value 'bank'" "PR analyzer/108806" } */
case 0x88:
case 0x8c:
return 0;
case 0x90:
return bank->swi; /* { dg-bogus "use of uninitialized value 'bank'" "PR analyzer/108806" } */
case 0x94:
return 0;
case 0x98:
return bank->irqs & ~bank->mask & ~bank->fiq; /* { dg-bogus "use of uninitialized value 'bank'" "PR analyzer/108806" } */
case 0x9c:
return bank->irqs & ~bank->mask & bank->fiq; /* { dg-bogus "use of uninitialized value 'bank'" "PR analyzer/108806" } */
case 0x100 ... 0x300:
bank_no = (offset - 0x100) >> 7;
if (bank_no > s->nbanks)
break;
bank = &s->bank[bank_no];
line_no = (offset & 0x7f) >> 2;
return (bank->priority[line_no] << 2) | ((bank->fiq >> line_no) & 1);
}
return 0;
}
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