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-rw-r--r--src/pal/src/libunwind/include/tdep-ppc64/libunwind_i.h369
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diff --git a/src/pal/src/libunwind/include/tdep-ppc64/libunwind_i.h b/src/pal/src/libunwind/include/tdep-ppc64/libunwind_i.h
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+++ b/src/pal/src/libunwind/include/tdep-ppc64/libunwind_i.h
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+/* libunwind - a platform-independent unwind library
+ Copyright (C) 2006-2007 IBM
+ Contributed by
+ Corey Ashford <cjashfor@us.ibm.com>
+ Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com>
+
+ Copied from libunwind-x86_64.h, modified slightly for building
+ frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com>
+ Will be replaced when libunwind is ready on ppc64 platform.
+
+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. */
+
+#ifndef PPC64_LIBUNWIND_I_H
+#define PPC64_LIBUNWIND_I_H
+
+/* Target-dependent definitions that are internal to libunwind but need
+ to be shared with target-independent code. */
+
+#include <stdlib.h>
+#include <libunwind.h>
+
+#include "elf64.h"
+#include "mempool.h"
+#include "dwarf.h"
+
+typedef struct
+ {
+ /* no ppc64-specific fast trace */
+ }
+unw_tdep_frame_t;
+
+struct unw_addr_space
+{
+ struct unw_accessors acc;
+ int big_endian;
+ ppc64_abi_t abi;
+ unw_caching_policy_t caching_policy;
+#ifdef HAVE_ATOMIC_OPS_H
+ AO_t cache_generation;
+#else
+ uint32_t cache_generation;
+#endif
+ unw_word_t dyn_generation; /* see dyn-common.h */
+ unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */
+ struct dwarf_rs_cache global_cache;
+ struct unw_debug_frame_list *debug_frames;
+ int validate;
+};
+
+struct cursor
+{
+ struct dwarf_cursor dwarf; /* must be first */
+
+ /* Format of sigcontext structure and address at which it is
+ stored: */
+ enum
+ {
+ PPC_SCF_NONE, /* no signal frame encountered */
+ PPC_SCF_LINUX_RT_SIGFRAME /* POSIX ucontext_t */
+ }
+ sigcontext_format;
+ unw_word_t sigcontext_addr;
+};
+
+#define DWARF_GET_LOC(l) ((l).val)
+
+#ifdef UNW_LOCAL_ONLY
+# define DWARF_NULL_LOC DWARF_LOC (0, 0)
+# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0)
+# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) })
+# define DWARF_IS_REG_LOC(l) 0
+# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \
+ tdep_uc_addr((c)->as_arg, (r)), 0))
+# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
+# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \
+ tdep_uc_addr((c)->as_arg, (r)), 0))
+# define DWARF_VREG_LOC(c,r) (DWARF_LOC((unw_word_t) \
+ tdep_uc_addr((c)->as_arg, (r)), 0))
+
+static inline int
+dwarf_getvr (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t * val)
+{
+ if (!DWARF_GET_LOC (loc))
+ return -1;
+ *val = *(unw_fpreg_t *) DWARF_GET_LOC (loc);
+ return 0;
+}
+
+static inline int
+dwarf_putvr (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
+{
+ if (!DWARF_GET_LOC (loc))
+ return -1;
+ *(unw_fpreg_t *) DWARF_GET_LOC (loc) = val;
+ return 0;
+}
+
+static inline int
+dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val)
+{
+ if (!DWARF_GET_LOC (loc))
+ return -1;
+ *val = *(unw_fpreg_t *) DWARF_GET_LOC (loc);
+ return 0;
+}
+
+static inline int
+dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
+{
+ if (!DWARF_GET_LOC (loc))
+ return -1;
+ *(unw_fpreg_t *) DWARF_GET_LOC (loc) = val;
+ return 0;
+}
+
+static inline int
+dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val)
+{
+ if (!DWARF_GET_LOC (loc))
+ return -1;
+ *val = *(unw_word_t *) DWARF_GET_LOC (loc);
+ return 0;
+}
+
+static inline int
+dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val)
+{
+ if (!DWARF_GET_LOC (loc))
+ return -1;
+ *(unw_word_t *) DWARF_GET_LOC (loc) = val;
+ return 0;
+}
+
+#else /* !UNW_LOCAL_ONLY */
+
+# define DWARF_LOC_TYPE_FP (1 << 0)
+# define DWARF_LOC_TYPE_REG (1 << 1)
+# define DWARF_LOC_TYPE_V (1 << 2)
+# define DWARF_NULL_LOC DWARF_LOC (0, 0)
+# define DWARF_IS_NULL_LOC(l) \
+ ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; })
+# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) })
+# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0)
+# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0)
+# define DWARF_IS_V_LOC(l) (((l).type & DWARF_LOC_TYPE_V) != 0)
+# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
+# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG)
+# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \
+ | DWARF_LOC_TYPE_FP))
+# define DWARF_VREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \
+ | DWARF_LOC_TYPE_V))
+
+static inline int
+dwarf_getvr (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t * val)
+{
+ unw_word_t *valp = (unw_word_t *) val;
+ unw_word_t addr;
+ int ret;
+
+ if (DWARF_IS_NULL_LOC (loc))
+ return -UNW_EBADREG;
+
+ assert (DWARF_IS_V_LOC (loc));
+ assert (!DWARF_IS_FP_LOC (loc));
+
+ if (DWARF_IS_REG_LOC (loc))
+ return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
+ val, 0, c->as_arg);
+
+ addr = DWARF_GET_LOC (loc);
+
+ if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, valp,
+ 0, c->as_arg)) < 0)
+ return ret;
+
+ return (*c->as->acc.access_mem) (c->as, addr + 8, valp + 1, 0, c->as_arg);
+}
+
+static inline int
+dwarf_putvr (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
+{
+ unw_word_t *valp = (unw_word_t *) & val;
+ unw_word_t addr;
+ int ret;
+
+ if (DWARF_IS_NULL_LOC (loc))
+ return -UNW_EBADREG;
+
+ assert (DWARF_IS_V_LOC (loc));
+ assert (!DWARF_IS_FP_LOC (loc));
+
+ if (DWARF_IS_REG_LOC (loc))
+ return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
+ &val, 1, c->as_arg);
+
+ addr = DWARF_GET_LOC (loc);
+ if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, valp,
+ 1, c->as_arg)) < 0)
+ return ret;
+
+ return (*c->as->acc.access_mem) (c->as, addr + 8, valp + 1, 1, c->as_arg);
+}
+
+static inline int
+dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t * val)
+{
+ unw_word_t *valp = (unw_word_t *) val;
+ unw_word_t addr;
+
+ if (DWARF_IS_NULL_LOC (loc))
+ return -UNW_EBADREG;
+
+ assert (DWARF_IS_FP_LOC (loc));
+ assert (!DWARF_IS_V_LOC (loc));
+
+ if (DWARF_IS_REG_LOC (loc))
+ return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
+ val, 0, c->as_arg);
+
+ addr = DWARF_GET_LOC (loc);
+ return (*c->as->acc.access_mem) (c->as, addr + 0, valp, 0, c->as_arg);
+
+}
+
+static inline int
+dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
+{
+ unw_word_t *valp = (unw_word_t *) & val;
+ unw_word_t addr;
+
+ if (DWARF_IS_NULL_LOC (loc))
+ return -UNW_EBADREG;
+
+ assert (DWARF_IS_FP_LOC (loc));
+ assert (!DWARF_IS_V_LOC (loc));
+
+ if (DWARF_IS_REG_LOC (loc))
+ return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
+ &val, 1, c->as_arg);
+
+ addr = DWARF_GET_LOC (loc);
+
+ return (*c->as->acc.access_mem) (c->as, addr + 0, valp, 1, c->as_arg);
+}
+
+static inline int
+dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t * val)
+{
+ if (DWARF_IS_NULL_LOC (loc))
+ return -UNW_EBADREG;
+
+ /* If a code-generator were to save a value of type unw_word_t in a
+ floating-point register, we would have to support this case. I
+ suppose it could happen with MMX registers, but does it really
+ happen? */
+ assert (!DWARF_IS_FP_LOC (loc));
+ assert (!DWARF_IS_V_LOC (loc));
+
+ if (DWARF_IS_REG_LOC (loc))
+ return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val,
+ 0, c->as_arg);
+ else
+ return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val,
+ 0, c->as_arg);
+}
+
+static inline int
+dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val)
+{
+ if (DWARF_IS_NULL_LOC (loc))
+ return -UNW_EBADREG;
+
+ /* If a code-generator were to save a value of type unw_word_t in a
+ floating-point register, we would have to support this case. I
+ suppose it could happen with MMX registers, but does it really
+ happen? */
+ assert (!DWARF_IS_FP_LOC (loc));
+ assert (!DWARF_IS_V_LOC (loc));
+
+ if (DWARF_IS_REG_LOC (loc))
+ return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val,
+ 1, c->as_arg);
+ else
+ return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val,
+ 1, c->as_arg);
+}
+
+#endif /* !UNW_LOCAL_ONLY */
+
+#define tdep_getcontext_trace unw_getcontext
+#define tdep_init_done UNW_OBJ(init_done)
+#define tdep_init UNW_OBJ(init)
+/* Platforms that support UNW_INFO_FORMAT_TABLE need to define
+ tdep_search_unwind_table. */
+#define tdep_search_unwind_table dwarf_search_unwind_table
+#define tdep_find_unwind_table dwarf_find_unwind_table
+#define tdep_uc_addr UNW_ARCH_OBJ(uc_addr)
+#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image)
+#define tdep_get_exe_image_path UNW_ARCH_OBJ(get_exe_image_path)
+#define tdep_access_reg UNW_OBJ(access_reg)
+#define tdep_access_fpreg UNW_OBJ(access_fpreg)
+#define tdep_fetch_frame(c,ip,n) do {} while(0)
+#define tdep_cache_frame(c) 0
+#define tdep_reuse_frame(c,frame) do {} while(0)
+#define tdep_stash_frame(c,rs) do {} while(0)
+#define tdep_trace(cur,addr,n) (-UNW_ENOINFO)
+#define tdep_get_func_addr UNW_OBJ(get_func_addr)
+
+#ifdef UNW_LOCAL_ONLY
+# define tdep_find_proc_info(c,ip,n) \
+ dwarf_find_proc_info((c)->as, (ip), &(c)->pi, (n), \
+ (c)->as_arg)
+# define tdep_put_unwind_info(as,pi,arg) \
+ dwarf_put_unwind_info((as), (pi), (arg))
+#else
+# define tdep_find_proc_info(c,ip,n) \
+ (*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \
+ (c)->as_arg)
+# define tdep_put_unwind_info(as,pi,arg) \
+ (*(as)->acc.put_unwind_info)((as), (pi), (arg))
+#endif
+
+extern int tdep_fetch_proc_info_post (struct dwarf_cursor *c, unw_word_t ip,
+ int need_unwind_info);
+
+#define tdep_get_as(c) ((c)->dwarf.as)
+#define tdep_get_as_arg(c) ((c)->dwarf.as_arg)
+#define tdep_get_ip(c) ((c)->dwarf.ip)
+#define tdep_big_endian(as) ((as)->big_endian)
+
+extern int tdep_init_done;
+
+extern void tdep_init (void);
+extern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip,
+ unw_dyn_info_t * di,
+ unw_proc_info_t * pi,
+ int need_unwind_info, void *arg);
+extern void *tdep_uc_addr (ucontext_t * uc, int reg);
+extern int tdep_get_elf_image (struct elf_image *ei, pid_t pid, unw_word_t ip,
+ unsigned long *segbase, unsigned long *mapoff,
+ char *path, size_t pathlen);
+extern void tdep_get_exe_image_path (char *path);
+extern int tdep_access_reg (struct cursor *c, unw_regnum_t reg,
+ unw_word_t * valp, int write);
+extern int tdep_access_fpreg (struct cursor *c, unw_regnum_t reg,
+ unw_fpreg_t * valp, int write);
+extern int tdep_get_func_addr (unw_addr_space_t as, unw_word_t addr,
+ unw_word_t *entry_point);
+
+#endif /* PPC64_LIBUNWIND_I_H */
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