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am 8f355275: Merge "Add x86 <sys/ucontext.h>."

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* commit '8f355275920f8be82f56e30087a57b1d5ce49771':
  Add x86 <sys/ucontext.h>.
This commit is contained in:
Elliott Hughes 2014-03-06 20:23:31 +00:00 committed by Android Git Automerger
commit f20e85811d
1 changed files with 81 additions and 2 deletions
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83
libc/include/sys/ucontext.h
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@ -34,7 +34,86 @@
__BEGIN_DECLS
#if defined(__x86_64__)
#if defined(__arm__)
#error TODO
#elif defined(__arm64__)
#error TODO
#elif defined(__i386__)
enum {
REG_GS = 0,
REG_FS,
REG_ES,
REG_DS,
REG_EDI,
REG_ESI,
REG_EBP,
REG_ESP,
REG_EBX,
REG_EDX,
REG_ECX,
REG_EAX,
REG_TRAPNO,
REG_ERR,
REG_EIP,
REG_CS,
REG_EFL,
REG_UESP,
REG_SS,
NGREG
};
typedef int greg_t;
typedef greg_t gregset_t[NGREG];
struct _libc_fpreg {
unsigned short significand[4];
unsigned short exponent;
};
struct _libc_fpstate {
unsigned long cw;
unsigned long sw;
unsigned long tag;
unsigned long ipoff;
unsigned long cssel;
unsigned long dataoff;
unsigned long datasel;
struct _libc_fpreg _st[8];
unsigned long status;
};
typedef struct _libc_fpstate* fpregset_t;
typedef struct {
gregset_t gregs;
fpregset_t fpregs;
unsigned long oldmask;
unsigned long cr2;
} mcontext_t;
typedef struct ucontext {
unsigned long uc_flags;
struct ucontext* uc_link;
stack_t uc_stack;
mcontext_t uc_mcontext;
sigset_t uc_sigmask;
/* TODO: __fpregs_mem? */
} ucontext_t;
#elif defined(__mips__)
#error TODO
#elif defined(__mips64__)
#error TODO
#elif defined(__x86_64__)
enum {
REG_R8 = 0,
@ -83,7 +162,7 @@ typedef struct ucontext {
/* TODO: __fpregs_mem? */
} ucontext_t;
#endif /* x86_64 */
#endif
__END_DECLS