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xtensa: gdbstub: fix stack calculation

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Fix a logic error when calculating stack frame sizes.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
This commit is contained in:
Guennadi Liakhovetski 2025-05-07 17:07:17 +02:00 • committed by Fabio Baltieri
commit 0a919055e6
1 changed files with 8 additions and 8 deletions
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16
arch/xtensa/core/gdbstub.c
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@ -429,12 +429,12 @@ static void copy_to_ctx(struct gdb_ctx *ctx, const struct arch_esf *stack)
uint32_t *bsa = *(const int **)stack;
if (bsa - (const uint32_t *)stack > 4) {
num_laddr_regs = 8;
if (bsa - (const uint32_t *)stack > 12) {
num_laddr_regs = 16;
} else if (bsa - (const uint32_t *)stack > 8) {
num_laddr_regs = 12;
} else if (bsa - (const uint32_t *)stack > 12) {
num_laddr_regs = 16;
} else if (bsa - (const uint32_t *)stack > 4) {
num_laddr_regs = 8;
} else {
num_laddr_regs = 4;
}
@ -519,12 +519,12 @@ static void restore_from_ctx(struct gdb_ctx *ctx, const struct arch_esf *stack)
_xtensa_irq_bsa_t *bsa = (void *)*(const int **)stack;
if ((uint32_t *)bsa - (const uint32_t *)stack > 4) {
num_laddr_regs = 8;
if ((uint32_t *)bsa - (const uint32_t *)stack > 12) {
num_laddr_regs = 16;
} else if ((uint32_t *)bsa - (const uint32_t *)stack > 8) {
num_laddr_regs = 12;
} else if ((uint32_t *)bsa - (const uint32_t *)stack > 12) {
num_laddr_regs = 16;
} else if ((uint32_t *)bsa - (const uint32_t *)stack > 4) {
num_laddr_regs = 8;
} else {
num_laddr_regs = 4;
}