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author | Ulrich Drepper <drepper@redhat.com> | 2000-03-21 21:05:19 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-03-21 21:05:19 +0000 |
commit | 8542e5f038cec88f2b64a324681a277cf86196af (patch) | |
tree | f5f16e8c51e6b9f39e2ed55b9334cd4faeef10b8 | |
parent | 39c571225a99bd583996c3dba9b213f5012af958 (diff) | |
download | glibc-8542e5f038cec88f2b64a324681a277cf86196af.zip glibc-8542e5f038cec88f2b64a324681a277cf86196af.tar.gz glibc-8542e5f038cec88f2b64a324681a277cf86196af.tar.bz2 |
Clean up namespace. Lay out struct sigcontext according to what really gets passed on the stack.
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h | 151 |
1 files changed, 52 insertions, 99 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h b/sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h index 59f2ffb..e8ddf78 100644 --- a/sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h +++ b/sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h @@ -22,104 +22,57 @@ #include <bits/wordsize.h> -#define SUNOS_MAXWIN 31 - -/* A register window */ -struct reg_window { - unsigned long locals[8]; - unsigned long ins[8]; -}; - -#if __WORDSIZE == 64 - -/* This is what SunOS doesn't, so we have to write this alone. */ -struct sigcontext { - int sigc_onstack; /* state to restore */ - int sigc_mask; /* sigmask to restore */ - unsigned long sigc_sp; /* stack pointer */ - unsigned long sigc_pc; /* program counter */ - unsigned long sigc_npc; /* next program counter */ - unsigned long sigc_psr; /* for condition codes etc */ - unsigned long sigc_g1; /* User uses these two registers */ - unsigned long sigc_o0; /* within the trampoline code. */ - - /* Now comes information regarding the users window set - at the time of the signal. */ - int sigc_oswins; /* outstanding windows */ - - /* stack ptrs for each regwin buf */ - char *sigc_spbuf[SUNOS_MAXWIN]; - - /* Windows to restore after signal */ - struct reg_window sigc_wbuf[SUNOS_MAXWIN]; -}; - -struct pt_regs { - unsigned long u_regs[16]; /* globals and ins */ - unsigned long tstate; - unsigned long tpc; - unsigned long tnpc; - unsigned int y; - unsigned int fprs; -}; - -typedef struct { - struct pt_regs si_regs; - long si_mask; -} __siginfo_t; - -typedef struct { - unsigned int si_float_regs [64]; - unsigned long si_fsr; - unsigned long si_gsr; - unsigned long si_fprs; -} __siginfo_fpu_t; - -#else - -/* This is what SunOS does, so shall I. */ -struct sigcontext { - int sigc_onstack; /* state to restore */ - int sigc_mask; /* sigmask to restore */ - int sigc_sp; /* stack pointer */ - int sigc_pc; /* program counter */ - int sigc_npc; /* next program counter */ - int sigc_psr; /* for condition codes etc */ - int sigc_g1; /* User uses these two registers */ - int sigc_o0; /* within the trampoline code. */ - - /* Now comes information regarding the users window set - at the time of the signal. */ - int sigc_oswins; /* outstanding windows */ - - /* stack ptrs for each regwin buf */ - char *sigc_spbuf[SUNOS_MAXWIN]; - - /* Windows to restore after signal */ - struct reg_window sigc_wbuf[SUNOS_MAXWIN]; +#if __WORDSIZE == 32 + +/* It is quite hard to choose what to put here, because + Linux/sparc32 had at least 3 totally incompatible + signal stack layouts. + This one is for the "new" style signals, which are + now delivered unless SA_SIGINFO is requested. */ + +typedef struct sigcontext + { + struct + { + unsigned int psr; + unsigned int pc; + unsigned int npc; + unsigned int y; + unsigned int u_regs[16]; /* globals and ins */ + } si_regs; + int si_mask; + }; + +#else /* sparc64 */ + +typedef struct + { + unsigned int si_float_regs [64]; + unsigned long si_fsr; + unsigned long si_gsr; + unsigned long si_fprs; + } __siginfo_fpu_t; + +struct sigcontext + { + char sigc_info[128]; + struct + { + unsigned long u_regs[16]; /* globals and ins */ + unsigned long tstate; + unsigned long tpc; + unsigned long tnpc; + unsigned int y; + unsigned int fprs; + } sigc_regs; + __siginfo_fpu_t * sigc_fpu_save; + struct + { + void * ss_sp; + int ss_flags; + unsigned long ss_size; + } sigc_stack; + unsigned long sigc_mask; }; -struct pt_regs { - unsigned long psr; - unsigned long pc; - unsigned long npc; - unsigned long y; - unsigned long u_regs[16]; /* globals and ins */ -}; - -typedef struct { - struct pt_regs si_regs; - int si_mask; -} __siginfo_t; - -typedef struct { - unsigned long si_float_regs [32]; - unsigned long si_fsr; - unsigned long si_fpqdepth; - struct { - unsigned long *insn_addr; - unsigned long insn; - } si_fpqueue [16]; -} __siginfo_fpu_t; - -#endif +#endif /* sparc64 */ |