/* Register number for the "orig_eax" pseudo-register. If this
pseudo-register contains a value >= 0 it is interpreted as the
system call number that the kernel is supposed to restart. */
-#define I386_LINUX_ORIG_EAX_REGNUM I386_SSE_NUM_REGS
+#define I386_LINUX_ORIG_EAX_REGNUM I386_AVX_NUM_REGS
/* Total number of registers for GNU/Linux. */
#define I386_LINUX_NUM_REGS (I386_LINUX_ORIG_EAX_REGNUM + 1)
+/* Get XSAVE extended state xcr0 from core dump. */
+extern uint64_t i386_linux_core_read_xcr0
+ (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
+
/* Linux target description. */
extern struct target_desc *tdesc_i386_linux;
+extern struct target_desc *tdesc_i386_avx_linux;
+
+/* Format of XSAVE extended state is:
+ struct
+ {
+ fxsave_bytes[0..463]
+ sw_usable_bytes[464..511]
+ xstate_hdr_bytes[512..575]
+ avx_bytes[576..831]
+ future_state etc
+ };
+
+ Same memory layout will be used for the coredump NT_X86_XSTATE
+ representing the XSAVE extended state registers.
+
+ The first 8 bytes of the sw_usable_bytes[464..467] is the OS enabled
+ extended state mask, which is the same as the extended control register
+ 0 (the XFEATURE_ENABLED_MASK register), XCR0. We can use this mask
+ together with the mask saved in the xstate_hdr_bytes to determine what
+ states the processor/OS supports and what state, used or initialized,
+ the process/thread is in. */
+#define I386_LINUX_XSAVE_XCR0_OFFSET 464
#endif /* i386-linux-tdep.h */