The vector extension introduces 32 128-bit vector registers and a set of instruction to operate on the vector registers. The kernel can control the use of vector registers for the problem state program with a bit in control register 0. Once enabled for a process the kernel needs to retain the content of the vector registers on context switch. The signal frame is extended to include the vector registers. Two new register sets NT_S390_VXRS_LOW and NT_S390_VXRS_HIGH are added to the regset interface for the debugger and core dumps.
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| @@ -391,6 +391,8 @@ typedef struct elf64_shdr { · 390 unmodified lines | ||
| 391 | 391 | #define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */ |
| 392 | 392 | #define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */ |
| 393 | 393 | #define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */ |
| 394 | +#define NT_S390_VXRS_LOW 0x309 /* s390 vector registers 0-15 upper half */ | |
| 395 | +#define NT_S390_VXRS_HIGH 0x30a /* s390 vector registers 16-31 */ | |
| 394 | 396 | #define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */ |
| 395 | 397 | #define NT_ARM_TLS 0x401 /* ARM TLS register */ |
| 396 | 398 | #define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */ |