diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/sys/ucontext.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/sys/ucontext.h | 61 |
1 files changed, 43 insertions, 18 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h index 9d80b4086a..66c729a4f9 100644 --- a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h +++ b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h @@ -29,47 +29,72 @@ #include <bits/sigcontext.h> -/* Type for general register. */ -#if defined _ABIN32 && _MIPS_SIM == _ABIN32 +/* Type for general register. Even in o32 we assume 64-bit registers, + like the kernel. */ __extension__ typedef unsigned long long int greg_t; -#else -typedef unsigned long int greg_t; -#endif /* Number of general registers. */ -#define NGREG 37 -#define NFPREG 33 +#define NGREG 32 +#define NFPREG 32 /* Container for all general registers. */ -/* gregset_t must be an array. The below declared array corresponds to: -typedef struct gregset { - greg_t g_regs[32]; - greg_t g_hi; - greg_t g_lo; - greg_t g_pad[3]; -} gregset_t; */ typedef greg_t gregset_t[NGREG]; /* Container for all FPU registers. */ typedef struct fpregset { union { - double fp_dregs[32]; + double fp_dregs[NFPREG]; struct { float _fp_fregs; unsigned int _fp_pad; - } fp_fregs[32]; + } fp_fregs[NFPREG]; } fp_r; - unsigned int fp_csr; - unsigned int fp_pad; } fpregset_t; /* Context to describe whole processor state. */ +#if _MIPS_SIM == _MIPS_SIM_ABI32 +/* Earlier versions of glibc for mips had an entirely different + definition of mcontext_t, that didn't even resemble the + corresponding kernel data structure. Since all legitimate uses of + ucontext_t in glibc mustn't have accessed anything beyond + uc_mcontext and, even then, taking a pointer to it, casting it to + sigcontext_t, and accessing it as such, which is what it has always + been, this can still be rectified. Fortunately, makecontext, + [gs]etcontext et all have never been implemented. */ +typedef struct + { + unsigned int regmask; + unsigned int status; + greg_t pc; + gregset_t gregs; + fpregset_t fpregs; + unsigned int fp_owned; + unsigned int fpc_csr; + unsigned int fpc_eir; + unsigned int used_math; + unsigned int ssflags; + greg_t mdhi; + greg_t mdlo; + unsigned int cause; + unsigned int badvaddr; + } mcontext_t; +#else typedef struct { gregset_t gregs; fpregset_t fpregs; + greg_t mdhi; + greg_t mdlo; + greg_t pc; + unsigned int status; + unsigned int fpc_csr; + unsigned int fpc_eir; + unsigned int used_math; + unsigned int cause; + unsigned int badvaddr; } mcontext_t; +#endif /* Userlevel context. */ typedef struct ucontext |