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aarch64: add extra_context struct from linux v4.13

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allows expanding the signal frame beyond the 4k reserved space.
new in linux commit 33f082614c3443d937f50fe936f284f62bbb4a1b
This commit is contained in:
Szabolcs Nagy 2017-09-12 22:32:11 +00:00 committed by Rich Felker
parent 6651ef1f06
commit ffd048a07b
1 changed files with 7 additions and 0 deletions
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7
arch/aarch64/bits/signal.h
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@ -24,6 +24,7 @@ typedef struct sigcontext {
#define FPSIMD_MAGIC 0x46508001 #define FPSIMD_MAGIC 0x46508001
#define ESR_MAGIC 0x45535201 #define ESR_MAGIC 0x45535201
#define EXTRA_MAGIC 0x45585401
struct _aarch64_ctx { struct _aarch64_ctx {
unsigned int magic; unsigned int magic;
unsigned int size; unsigned int size;
@ -38,6 +39,12 @@ struct esr_context {
struct _aarch64_ctx head; struct _aarch64_ctx head;
unsigned long esr; unsigned long esr;
}; };
struct extra_context {
struct _aarch64_ctx head;
unsigned long datap;
unsigned int size;
unsigned int __reserved[3];
};
#else #else
typedef struct { typedef struct {
long double __regs[18+256]; long double __regs[18+256];