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https://github.com/tobast/libunwind-eh_elf.git
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Rename IA64_UNW_ACCESSORS to UNW_LOCAL_ONLY. Drop weak_alias() and
alias() macros. (struct ia64_cursor): Rearrange order of members a bit to group things that logicall belong together. Rename rp_loc to ip_loc. (struct ia64_unwind_table): Drop start and end members (they are now in unw_ia64_table_t). (struct ia64_reg_state): Break declaration out of declaration for ia64_state_record and add "next" member. (struct ia64_state_record): Add member "labeled_states", drop members "stack", and "reg_state_list". (Logical change 1.5)
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(none)!davidm
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143ace01a8
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6a4f3b23c1
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@ -104,30 +104,32 @@ struct ia64_proc_info
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struct ia64_cursor
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{
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#ifdef IA64_UNW_ACCESSORS
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struct unw_accessors acc;
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#else
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#ifdef UNW_LOCAL_ONLY
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ucontext_t *uc; /* pointer to struct of preserved registers */
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#else
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struct unw_accessors acc;
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#endif
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/* IP and predicate cache (these are always equal to the values
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stored in ip_loc and pr_loc, respectively). */
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unw_word_t ip; /* instruction pointer value */
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unw_word_t pr; /* current predicate values */
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/* current frame info: */
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unw_word_t bsp; /* backing store pointer value */
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unw_word_t sp; /* stack pointer value */
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unw_word_t psp; /* previous sp value */
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unw_word_t ip; /* instruction pointer value */
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struct ia64_proc_info pi; /* info about current procedure */
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unw_word_t pr; /* current predicate values */
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unw_word_t cfm_loc; /* cfm save location (or NULL) */
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unw_word_t rbs_top; /* address of end of register backing store */
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unw_word_t top_rnat_loc; /* location of final (topmost) RNaT word */
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struct ia64_proc_info pi; /* info about current procedure */
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/* preserved state: */
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unw_word_t bsp_loc; /* previous bsp save location */
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unw_word_t bspstore_loc;
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unw_word_t pfs_loc;
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unw_word_t rnat_loc;
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unw_word_t rp_loc;
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unw_word_t ip_loc;
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unw_word_t pri_unat_loc;
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unw_word_t unat_loc;
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unw_word_t pr_loc;
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@ -179,7 +181,18 @@ struct ia64_cursor
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#define IA64_GET_NAT_LOC(loc) ((loc) >> 3)
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#endif
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#ifdef IA64_UNW_ACCESSORS
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#ifdef UNW_LOCAL_ONLY
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extern int ia64_acquire_unwind_info (unw_word_t, void *);
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extern int ia64_release_unwind_info (void *);
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# define ia64_acquire_unwind_info(c,ip,i) \
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ia64_acquire_unwind_info((ip), (i))
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# define ia64_release_unwind_info(c,ip,i) \
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ia64_release_unwind_info((i))
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# define ia64_get(c,l,v) (*(v) = *(unw_word_t *) (l), 0)
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#else /* !UNW_LOCAL_ONLY */
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# define ia64_acquire_unwind_info(c,ip,i) \
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(*(c)->acc.acquire_unwind_info)((ip), (i), (c)->acc.arg)
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# define ia64_release_unwind_info(c,ip,i) \
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@ -268,15 +281,7 @@ ia64_put (struct ia64_cursor *c, unw_word_t loc, unw_word_t val)
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return (*c->acc.access_mem)(loc, &val, 1, c->acc.arg);
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}
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#else
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extern int ia64_acquire_unwind_info (unw_word_t, void *);
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extern int ia64_release_unwind_info (void *);
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# define ia64_acquire_unwind_info(c,ip,i) \
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ia64_acquire_unwind_info((ip), (i))
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# define ia64_release_unwind_info(c,ip,i) \
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ia64_release_unwind_info((i))
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# define ia64_get(c,l,v) (*(v) = *(unw_word_t *) (l), 0)
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#endif
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#endif /* !UNW_LOCAL_ONLY */
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struct ia64_unwind_block
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{
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@ -297,8 +302,6 @@ struct ia64_unwind_table_entry
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struct ia64_unwind_table
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{
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struct ia64_unwind_table *next; /* must be first member! */
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unw_word_t start; /* start offset covered by table */
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unw_word_t end; /* end offset covered table */
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unw_ia64_table_t info;
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};
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@ -327,6 +330,13 @@ struct ia64_reg_info
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int when; /* when the register gets saved */
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};
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struct ia64_labeled_state; /* opaque structure */
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struct ia64_reg_state {
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struct ia64_reg_state *next; /* next (outer) element on state stack */
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struct ia64_reg_info reg[IA64_NUM_PREGS]; /* register save locations */
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};
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struct ia64_state_record
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{
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unsigned int first_region : 1; /* is this the first region? */
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@ -349,13 +359,8 @@ struct ia64_state_record
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uint8_t gr_save_loc; /* next save register */
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uint8_t return_link_reg; /* branch register used as return pointer */
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struct ia64_reg_state
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{
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struct ia64_reg_state *next;
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unsigned long label; /* label of this state record */
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struct ia64_reg_info reg[IA64_NUM_PREGS];
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}
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curr, *stack, *reg_state_list;
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struct ia64_labeled_state *labeled_states;
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struct ia64_reg_state curr;
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};
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struct ia64_global_unwind_state
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@ -434,15 +439,13 @@ struct ia64_global_unwind_state
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#define ia64_get_proc_info UNW_OBJ(ia64_get_proc_info)
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#define ia64_create_state_record UNW_OBJ(ia64_create_state_record)
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#define ia64_free_state_record UNW_OBJ(ia64_free_state_record)
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#define ia64_get_frame_state UNW_OBJ(ia64_get_frame_state)
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#define ia64_find_save_locs UNW_OBJ(ia64_find_save_locs)
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#define ia64_init UNW_OBJ(ia64_init)
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#define ia64_init_remote UNW_OBJ(ia64_init_remote)
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#define ia64_glibc_acquire_unwind_info UNW_OBJ(ia64_glibc_acquire_unwind_info)
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#define ia64_glibc_release_unwind_info UNW_OBJ(ia64_glibc_release_unwind_info)
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#define ia64_access_reg UNW_OBJ(ia64_access_reg)
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#define ia64_access_fpreg UNW_OBJ(ia64_access_fpreg)
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#define ia64_get_sigcontext_addr UNW_OBJ(ia64_get_sigcontext_addr)
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#define ia64_scratch_loc UNW_OBJ(ia64_scratch_loc)
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extern struct ia64_global_unwind_state unw;
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@ -450,10 +453,8 @@ extern int ia64_get_proc_info (struct ia64_cursor *c);
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extern int ia64_create_state_record (struct ia64_cursor *c,
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struct ia64_state_record *sr);
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extern int ia64_free_state_record (struct ia64_state_record *sr);
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extern int ia64_get_frame_state (struct ia64_cursor *c);
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extern int ia64_find_save_locs (struct ia64_cursor *c);
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extern void ia64_init (void);
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extern int ia64_init_remote (unw_cursor_t *c, unw_accessors_t *a);
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extern int ia64_glibc_acquire_unwind_info (unw_word_t ip, void *info,
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void *arg);
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extern int ia64_glibc_release_unwind_info (void *info, void *arg);
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@ -461,18 +462,12 @@ extern int ia64_access_reg (struct ia64_cursor *c, unw_regnum_t reg,
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unw_word_t *valp, int write);
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extern int ia64_access_fpreg (struct ia64_cursor *c, unw_regnum_t reg,
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unw_fpreg_t *valp, int write);
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extern unw_word_t ia64_get_sigcontext_addr (struct ia64_cursor *c);
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extern unw_word_t ia64_scratch_loc (struct ia64_cursor *c, unw_regnum_t reg);
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extern void __ia64_install_context (const ucontext_t *ucp, long r15, long r16,
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long r17, long r18)
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__attribute__ ((noreturn));
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/* XXX temporary (from glibc): */
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#define weak_alias(name, aliasname) \
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extern __typeof (name) aliasname __attribute__ ((weak, alias (#name)));
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#define alias(name, aliasname) \
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extern __typeof (name) aliasname __attribute__ ((alias (#name)));
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/* XXX should be in glibc: */
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#ifndef IA64_SC_FLAG_ONSTACK
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# define IA64_SC_FLAG_ONSTACK_BIT 0 /* running on signal stack? */
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