[src/nathanw_sa]: src/lib/libpthread/arch/alpha Add struct reg/mcontext conve...

[nathanw <nathanw%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ef8c260fe567
branches:  nathanw_sa
changeset: 506126:ef8c260fe567
user:      nathanw <nathanw%NetBSD.org@localhost>
date:      Tue Aug 06 20:06:50 2002 +0000

description:
Add struct reg/mcontext conversion glue.

diffstat:

 lib/libpthread/arch/alpha/pthread_md.h |  29 ++++++++++++++++++++++++++++-
 1 files changed, 28 insertions(+), 1 deletions(-)

diffs (42 lines):

diff -r d3eec738a874 -r ef8c260fe567 lib/libpthread/arch/alpha/pthread_md.h
--- a/lib/libpthread/arch/alpha/pthread_md.h    Tue Aug 06 20:05:36 2002 +0000
+++ b/lib/libpthread/arch/alpha/pthread_md.h    Tue Aug 06 20:06:50 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pthread_md.h,v 1.1.2.3 2001/12/17 22:07:29 nathanw Exp $       */
+/*     $NetBSD: pthread_md.h,v 1.1.2.4 2002/08/06 20:06:50 nathanw Exp $       */
 
 /*-
  * Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -53,5 +53,32 @@
 #define pthread__uc_pc(ucp) ((ucp)->uc_mcontext.__gregs[_REG_PC])
 
 #define STACKSPACE 32  /* 4 quad values */
+/*
+ * Conversions between struct reg and struct mcontext. Used by
+ * libpthread_dbg.
+ */
+
+#define PTHREAD_UCONTEXT_TO_REG(reg, uc) do {                          \
+       memcpy(&(reg)->r_regs, &(uc)->uc_mcontext.__gregs,              \
+               31 * sizeof(__greg_t));                                 \
+       (reg)->r_regs[R_ZERO] = (uc)->uc_mcontext.__gregs[_REG_PC];     \
+       } while (/*CONSTCOND*/0)
+
+#define PTHREAD_REG_TO_UCONTEXT(uc, reg) do {                          \
+       memcpy(&(uc)->uc_mcontext.__gregs, &(reg)->r_regs,              \
+               31 * sizeof(__greg_t));                                 \
+       (uc)->uc_mcontext.__gregs[_REG_PC] = (reg)->r_regs[R_ZERO];     \
+       (uc)->uc_flags = ((uc)->uc_flags | _UC_CPU) & ~_UC_USER;        \
+       } while (/*CONSTCOND*/0)
+
+#define PTHREAD_UCONTEXT_TO_FPREG(freg, uc)                            \
+       memcpy((freg), &(uc)->uc_mcontext.__fpregs,                     \
+           sizeof(struct fpreg))                                       \
+
+#define PTHREAD_FPREG_TO_UCONTEXT(uc, freg) do {                               \
+       memcpy(&(uc)->uc_mcontext.__fpregs, (freg),                     \
+           sizeof(struct fpreg));                                      \
+       (uc)->uc_flags = ((uc)->uc_flags | _UC_FPU) & ~_UC_USER;        \
+       } while (/*CONSTCOND*/0)
 
 #endif /* _LIB_PTHREAD_ALPHA_MD_H */