[Crash-utility] [Crash-utility][PATCH] Fix crash initialization failure on LoongArch with recent GDB versions
The crash tool failed to initialize on LoongArch64 when using
GDB 16.2 (and likely other recent GDB versions that have enhanced
LoongArch support) due to the error:
"fatal error: buffer size is not enough to fit register value".
This occurs in supply_registers() because GDB now correctly
reports the size of LoongArch LASX (256-bit) vector registers
(xr0-xr31) as 32 bytes. The `regval` buffer in `crash_target.c`
was previously fixed at 16 bytes.
This patch increases the `regval` buffer size to 32 bytes to
accommodate the largest LoongArch registers reported by GDB.
This allows crash to initialize successfully.
Signed-off-by: Ming Wang <wangming01(a)loongson.cn>
---
crash_target.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crash_target.c b/crash_target.c
index 5966b7b..d93d58c 100644
--- a/crash_target.c
+++ b/crash_target.c
@@ -71,7 +71,7 @@ public:
static void supply_registers(struct regcache *regcache, int regno)
{
- gdb_byte regval[16];
+ gdb_byte regval[32];
struct gdbarch *arch = regcache->arch ();
const char *regname = gdbarch_register_name(arch, regno);
int regsize = register_size(arch, regno);
--
2.41.3