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2005-06-08 Jeff Johnston <jjohnstn@redhat.com>

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David Mosberger <davidm@hpl.hp.com>

        * ia64-tdep.c (KERNEL_START): New macro.
        (ia64_pseudo_register_read): Fix code to use libunwind to properly
        get the rse registers.
        (ia64_frame_this_id): Mark outermost frame with null frame id.
        (ia64_sigtramp_frame_prev_register): Fix up debug output.
        (ia64_access_rse_reg): New accessor function.
        (ia64_access_mem): Add special logic for accessing the
        kernel's unwind table.
        (getunwind_table): Fix for corefiles.
        (get_kernel_table): Fix to handle vDSO.
        (ia64_libunwind_frame_this_id): Check for null frame id and
        don't unwind past pc value of 0.  Fix debugging output.
        (ia64_libunwind_sigtramp_frame_this_id): New function.
        (ia64_libunwind_sigtramp_frame_prev_register): Ditto.
        (ia64_libunwind_sigtramp_frame_sniffer): Ditto.
        (ia64_libunwind_sigtramp_frame_unwind): New unwinder.
        (ia64_unw_rse_accessors): New libunwind accessors.
        (ia64_libunwind_descr): Add ia64_unw_rse_accessors.
        (ia64_gdbarch_init)[HAVE_LIBUNWIND_IA64_H]: Use
        ia64_libunwind_sigtramp_frame_sniffer instead of
        ia64_sigtramp_frame_sniffer.
        * libunwind-frame.c (libunwind_frame_set_descr): Add
        special register accessors.
        (libunwind_frame_cache): Add special logic to check for
        0 pc value.  Check for a signal trampoline frame.
        (libunwind_frame_this_id): Check if libunwind_frame_cache
        returns NULL.
        (libunwind_frame_prev_register): Check for NULL cache.
        (libunwind_frame_base_address): Ditto.
        (libunwind_sigtramp_frame_sniffer): New function.
        (libunwind_get_reg_special): Ditto.
        (libunwind_load): Add unw_is_signal_frame support.
        * libunwind-frame.h (struct libunwind_descr): Add special_accessors
        field.
        (libunwind_sigtramp_frame_sniffer): New prototype.
        (libunwind_get_reg_special): Ditto.
This commit is contained in:
Jeff Johnston
2005-06-08 21:54:23 +00:00
parent 4dddc1d199
commit c5a27d9ca5
4 changed files with 517 additions and 55 deletions
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5
gdb/libunwind-frame.h
View File

@@ -25,6 +25,7 @@
struct frame_info;
struct frame_id;
struct gdbarch;
#ifndef LIBUNWIND_FRAME_H
#define LIBUNWIND_FRAME_H 1
@@ -37,9 +38,11 @@ struct libunwind_descr
int (*uw2gdb) (int);
int (*is_fpreg) (int);
void *accessors;
void *special_accessors;
};
const struct frame_unwind *libunwind_frame_sniffer (struct frame_info *next_frame);
const struct frame_unwind *libunwind_sigtramp_frame_sniffer (struct frame_info *next_frame);
void libunwind_frame_set_descr (struct gdbarch *arch, struct libunwind_descr *descr);
@@ -59,6 +62,8 @@ int libunwind_search_unwind_table (void *as, long ip, void *di,
unw_word_t libunwind_find_dyn_list (unw_addr_space_t, unw_dyn_info_t *,
void *);
int libunwind_get_reg_special (struct gdbarch *gdbarch, int regnum, void *buf);
#endif /* libunwind-frame.h */
#endif /* HAVE_LIBUNWIND_H */