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authorUlrich Drepper <drepper@redhat.com>2000-03-21 21:05:19 +0000
committerUlrich Drepper <drepper@redhat.com>2000-03-21 21:05:19 +0000
commit8542e5f038cec88f2b64a324681a277cf86196af (patch)
treef5f16e8c51e6b9f39e2ed55b9334cd4faeef10b8 /sysdeps/unix
parent39c571225a99bd583996c3dba9b213f5012af958 (diff)
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Clean up namespace. Lay out struct sigcontext according to what really gets passed on the stack.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h151
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 */