solaris port

5 files changed, 205 insertions, 3 deletions

diff --git a/src/x86_64/Gos-solaris.c b/src/x86_64/Gos-solaris.c
new file mode 100644
index 00000000..6e764463
--- /dev/null
+++ b/src/x86_64/Gos-solaris.c
@@ -0,0 +1,156 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2002-2003 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+   Modified for x86_64 by Max Asbock <masbock@us.ibm.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include "unwind_i.h"
+#include "ucontext_i.h"
+
+#include <sys/syscall.h>
+
+HIDDEN void
+tdep_fetch_frame (struct dwarf_cursor *dw, unw_word_t ip, int need_unwind_info)
+{
+  struct cursor *c = (struct cursor *) dw;
+  assert(! need_unwind_info || dw->pi_valid);
+  assert(! need_unwind_info || dw->pi.unwind_info);
+  if (dw->pi_valid
+      && dw->pi.unwind_info
+      && ((struct dwarf_cie_info *) dw->pi.unwind_info)->signal_frame)
+    c->sigcontext_format = X86_64_SCF_LINUX_RT_SIGFRAME;
+  else
+    c->sigcontext_format = X86_64_SCF_NONE;
+
+  Debug(5, "fetch frame ip=0x%lx cfa=0x%lx format=%d\n",
+        dw->ip, dw->cfa, c->sigcontext_format);
+}
+
+HIDDEN void
+tdep_cache_frame (struct dwarf_cursor *dw, struct dwarf_reg_state *rs)
+{
+  struct cursor *c = (struct cursor *) dw;
+  rs->signal_frame = c->sigcontext_format;
+
+  Debug(5, "cache frame ip=0x%lx cfa=0x%lx format=%d\n",
+        dw->ip, dw->cfa, c->sigcontext_format);
+}
+
+HIDDEN void
+tdep_reuse_frame (struct dwarf_cursor *dw, struct dwarf_reg_state *rs)
+{
+  struct cursor *c = (struct cursor *) dw;
+  c->sigcontext_format = rs->signal_frame;
+  if (c->sigcontext_format == X86_64_SCF_LINUX_RT_SIGFRAME)
+  {
+    c->frame_info.frame_type = UNW_X86_64_FRAME_SIGRETURN;
+    /* Offset from cfa to ucontext_t in signal frame.  */
+    c->frame_info.cfa_reg_offset = 0;
+    c->sigcontext_addr = dw->cfa;
+  }
+  else
+    c->sigcontext_addr = 0;
+
+  Debug(5, "reuse frame ip=0x%lx cfa=0x%lx format=%d addr=0x%lx offset=%+d\n",
+        dw->ip, dw->cfa, c->sigcontext_format, c->sigcontext_addr,
+	(c->sigcontext_format == X86_64_SCF_LINUX_RT_SIGFRAME
+	 ? c->frame_info.cfa_reg_offset : 0));
+}
+
+PROTECTED int
+unw_is_signal_frame (unw_cursor_t *cursor)
+{
+  struct cursor *c = (struct cursor *) cursor;
+  return c->sigcontext_format != X86_64_SCF_NONE;
+}
+
+PROTECTED int
+unw_handle_signal_frame (unw_cursor_t *cursor)
+{
+#if UNW_DEBUG /* To silence compiler warnings */
+  /* Should not get here because we now use kernel-provided dwarf
+     information for the signal trampoline and dwarf_step() works.
+     Hence unw_step() should never call this function. Maybe
+     restore old non-dwarf signal handling here, but then the
+     gating on unw_is_signal_frame() needs to be removed. */
+  struct cursor *c = (struct cursor *) cursor;
+  Debug(1, "old format signal frame? format=%d addr=0x%lx cfa=0x%lx\n",
+	c->sigcontext_format, c->sigcontext_addr, c->dwarf.cfa);
+#endif
+  return -UNW_EBADFRAME;
+}
+
+#ifndef UNW_REMOTE_ONLY
+HIDDEN void *
+x86_64_r_uc_addr (ucontext_t *uc, int reg)
+{
+  /* NOTE: common_init() in init.h inlines these for fast path access. */
+  void *addr;
+
+  switch (reg)
+    {
+    case UNW_X86_64_R8: addr = &uc->uc_mcontext.gregs[REG_R8]; break;
+    case UNW_X86_64_R9: addr = &uc->uc_mcontext.gregs[REG_R9]; break;
+    case UNW_X86_64_R10: addr = &uc->uc_mcontext.gregs[REG_R10]; break;
+    case UNW_X86_64_R11: addr = &uc->uc_mcontext.gregs[REG_R11]; break;
+    case UNW_X86_64_R12: addr = &uc->uc_mcontext.gregs[REG_R12]; break;
+    case UNW_X86_64_R13: addr = &uc->uc_mcontext.gregs[REG_R13]; break;
+    case UNW_X86_64_R14: addr = &uc->uc_mcontext.gregs[REG_R14]; break;
+    case UNW_X86_64_R15: addr = &uc->uc_mcontext.gregs[REG_R15]; break;
+    case UNW_X86_64_RDI: addr = &uc->uc_mcontext.gregs[REG_RDI]; break;
+    case UNW_X86_64_RSI: addr = &uc->uc_mcontext.gregs[REG_RSI]; break;
+    case UNW_X86_64_RBP: addr = &uc->uc_mcontext.gregs[REG_RBP]; break;
+    case UNW_X86_64_RBX: addr = &uc->uc_mcontext.gregs[REG_RBX]; break;
+    case UNW_X86_64_RDX: addr = &uc->uc_mcontext.gregs[REG_RDX]; break;
+    case UNW_X86_64_RAX: addr = &uc->uc_mcontext.gregs[REG_RAX]; break;
+    case UNW_X86_64_RCX: addr = &uc->uc_mcontext.gregs[REG_RCX]; break;
+    case UNW_X86_64_RSP: addr = &uc->uc_mcontext.gregs[REG_RSP]; break;
+    case UNW_X86_64_RIP: addr = &uc->uc_mcontext.gregs[REG_RIP]; break;
+
+    default:
+      addr = NULL;
+    }
+  return addr;
+}
+
+/* sigreturn() is a no-op on x86_64 glibc.  */
+HIDDEN NORETURN void
+x86_64_sigreturn (unw_cursor_t *cursor)
+{
+#if 0
+  struct cursor *c = (struct cursor *) cursor;
+  struct sigcontext *sc = (struct sigcontext *) c->sigcontext_addr;
+
+  Debug (8, "resuming at ip=%llx via sigreturn(%p)\n",
+	     (unsigned long long) c->dwarf.ip, sc);
+  __asm__ __volatile__ ("mov %0, %%rsp;"
+			"mov %1, %%rax;"
+			"syscall"
+			:: "r"(sc), "i"(SYS_rt_sigreturn)
+			: "memory");
+#endif // 0
+  abort();
+}
+
+#endif
diff --git a/src/x86_64/Los-solaris.c b/src/x86_64/Los-solaris.c
new file mode 100644
index 00000000..be64b2c6
--- /dev/null
+++ b/src/x86_64/Los-solaris.c
@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gos-solaris.c"
+#endif
diff --git a/src/x86_64/getcontext.S b/src/x86_64/getcontext.S
index 7a8b5664..6f5d0a14 100644
--- a/src/x86_64/getcontext.S
+++ b/src/x86_64/getcontext.S
@@ -57,11 +57,13 @@ _Ux86_64_getcontext:
 	movq %rax, UC_MCONTEXT_GREGS_RAX(%rdi)
 	movq %rcx, UC_MCONTEXT_GREGS_RCX(%rdi)
 
-#if defined __linux__
+#if defined(__linux__) || defined(__sun__)
 	/* Save fp state (not needed, except for setcontext not
 	   restoring garbage).  */
 	leaq UC_MCONTEXT_FPREGS_MEM(%rdi),%r8
+#ifdef UC_MCONTEXT_FPREGS_PTR
 	movq %r8, UC_MCONTEXT_FPREGS_PTR(%rdi)
+#endif // UC_MCONTEXT_FPREGS_PTR
 	fnstenv (%r8)
 	stmxcsr FPREGS_OFFSET_MXCSR(%r8)
 #elif defined __FreeBSD__
diff --git a/src/x86_64/setcontext.S b/src/x86_64/setcontext.S
index 358217de..4cbefe08 100644
--- a/src/x86_64/setcontext.S
+++ b/src/x86_64/setcontext.S
@@ -37,9 +37,28 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
 
 _Ux86_64_setcontext:
 
-#if defined __linux__
+#if defined(__linux__) || defined(__sun__)
+	/* restore signal mask
+           sigprocmask(SIG_SETMASK, ucp->uc_sigmask, NULL, sizeof(sigset_t)) */
+	push %rdi
+#if defined(__sun__)
+	mov $SYS_sigprocmask, %rax
+#else
+	mov $__NR_rt_sigprocmask, %rax
+#endif
+	lea UC_SIGMASK(%rdi), %rsi
+	mov $SIG_SETMASK, %rdi
+	xor %rdx, %rdx
+	mov $SIGSET_BYTE_SIZE, %r10
+	syscall
+	pop %rdi
+
         /* restore fp state */
+#ifdef UC_MCONTEXT_FPREGS_PTR
 	mov    UC_MCONTEXT_FPREGS_PTR(%rdi),%r8
+#else // UC_MCONTEXT_FPREGS_PTR
+	leaq UC_MCONTEXT_FPREGS_MEM(%rdi),%r8
+#endif // UC_MCONTEXT_FPREGS_PTR
 	fldenv (%r8)
 	ldmxcsr FPREGS_OFFSET_MXCSR(%r8)
 #elif defined __FreeBSD__
diff --git a/src/x86_64/ucontext_i.h b/src/x86_64/ucontext_i.h
index aded941d..e41e5629 100644
--- a/src/x86_64/ucontext_i.h
+++ b/src/x86_64/ucontext_i.h
@@ -78,5 +78,25 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
 #define UC_MCONTEXT_FPOWNED_FPU 0x20001
 #define UC_MCONTEXT_FPFMT_XMM   0x10002
 #define UC_MCONTEXT_MC_LEN_VAL  0x320
-
+#elif defined(__sun)
+#define UC_MCONTEXT_GREGS_R8	0x78
+#define UC_MCONTEXT_GREGS_R9	0x70
+#define UC_MCONTEXT_GREGS_R10	0x68
+#define UC_MCONTEXT_GREGS_R11	0x60
+#define UC_MCONTEXT_GREGS_R12	0x58
+#define UC_MCONTEXT_GREGS_R13	0x50
+#define UC_MCONTEXT_GREGS_R14	0x48
+#define UC_MCONTEXT_GREGS_R15	0x40
+#define UC_MCONTEXT_GREGS_RDI	0x80
+#define UC_MCONTEXT_GREGS_RSI	0x88
+#define UC_MCONTEXT_GREGS_RBP	0x90
+#define UC_MCONTEXT_GREGS_RBX	0x98
+#define UC_MCONTEXT_GREGS_RDX	0xa0
+#define UC_MCONTEXT_GREGS_RAX	0xb0
+#define UC_MCONTEXT_GREGS_RCX	0xa8
+#define UC_MCONTEXT_GREGS_RSP	0xe0
+#define UC_MCONTEXT_GREGS_RIP	0xc8
+#define UC_MCONTEXT_FPREGS_MEM	0x120
+#define FPREGS_OFFSET_MXCSR	0x18
+#define UC_SIGMASK		0x128
 #endif