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2004-05-01 Andrew Cagney <cagney@redhat.com>

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* frv-linux-tdep.c: Include "trad-frame.h" and "frame-unwind.h".
	(frv_linux_sigtramp_frame_cache)
	(frv_linux_sigtramp_frame_this_id)
	(frv_linux_sigtramp_frame_prev_register)
	(frv_linux_sigtramp_frame_unwind)
	(frv_linux_sigtramp_frame_sniffer): Copied from frv-tdep.c,
	include "linux" in function and variable names, directly call
	frv_linux_pc_in_sigtramp and frv_linux_sigcontext_reg_addr, use
	the latest trad-frame code.
	(frv_linux_init_abi): Append frv_linux_sigtramp_frame_sniffer, do
	not set frv_sigcontext_reg_addr or deprecated_pc_in_sigtramp
	* Makefile.in (frv-linux-tdep.o): Update dependencies.
	* frv-tdep.h (frv_set_sigcontext_reg_addr): Delete declaration.
	* frv-tdep.c (frv_sigtramp_frame_cache)
	(frv_sigtramp_frame_this_id, frv_sigtramp_frame_prev_register)
	(frv_sigtramp_frame_unwind, frv_sigtramp_frame_sniffer): Moved to
	frv-linux-tdep.c.
	(frv_gdbarch_init): Do not append a sigtramp sniffer.
	(struct gdbarch_tdep): Delete sigcontext_reg_addr.
	(frv_set_sigcontext_reg_addr): Delete function.
This commit is contained in:
Andrew Cagney
2004-05-01 14:00:57 +00:00
parent 8c6b0e0607
commit 9df0bb3fab
5 changed files with 110 additions and 126 deletions
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113
gdb/frv-tdep.c
View File

@ -96,11 +96,6 @@ struct gdbarch_tdep
/* Register names. */
char **register_names;
/* Given NEXT_FRAME, determine the address of register REGNO saved in
the calling sigtramp frame. */
CORE_ADDR (*sigcontext_reg_addr) (struct frame_info *next_frame, int regno,
CORE_ADDR *);
};
#define CURRENT_VARIANT (gdbarch_tdep (current_gdbarch))
@ -112,15 +107,6 @@ frv_abi (struct gdbarch *gdbarch)
return gdbarch_tdep (gdbarch)->frv_abi;
}
/* Set sigcontext_reg_addr. */
void
frv_set_sigcontext_reg_addr (struct gdbarch *gdbarch,
CORE_ADDR (*sigcontext_reg_addr)
(struct frame_info *, int, CORE_ADDR *))
{
gdbarch_tdep (gdbarch)->sigcontext_reg_addr = sigcontext_reg_addr;
}
/* Fetch the interpreter and executable loadmap addresses (for shared
library support) for the FDPIC ABI. Return 0 if successful, -1 if
not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */
@ -1432,102 +1418,6 @@ frv_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
frame_pc_unwind (next_frame));
}
/* Signal trampolines. */
static struct frv_unwind_cache *
frv_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache)
{
struct frv_unwind_cache *cache;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
CORE_ADDR addr;
char buf[4];
int regno;
CORE_ADDR sc_addr_cache_val = 0;
if (*this_cache)
return *this_cache;
cache = FRAME_OBSTACK_ZALLOC (struct frv_unwind_cache);
cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
frame_unwind_register (next_frame, sp_regnum, buf);
cache->base = extract_unsigned_integer (buf, sizeof buf);
for (regno = 0; regno < frv_num_regs; regno++)
{
cache->saved_regs[regno].addr
= tdep->sigcontext_reg_addr (next_frame, regno, &sc_addr_cache_val);
}
if (cache->saved_regs[sp_regnum].addr != -1
&& target_read_memory (cache->saved_regs[sp_regnum].addr,
buf, sizeof buf) == 0)
{
cache->prev_sp = extract_unsigned_integer (buf, sizeof buf);
/* Now that we've bothered to read it out of memory, save the
prev frame's SP value in the cache. */
trad_frame_set_value (cache->saved_regs, sp_regnum, cache->prev_sp);
}
else
{
warning ("Can't read SP value from sigtramp frame");
}
*this_cache = cache;
return cache;
}
static void
frv_sigtramp_frame_this_id (struct frame_info *next_frame, void **this_cache,
struct frame_id *this_id)
{
struct frv_unwind_cache *cache =
frv_sigtramp_frame_cache (next_frame, this_cache);
(*this_id) = frame_id_build (cache->base, frame_pc_unwind (next_frame));
}
static void
frv_sigtramp_frame_prev_register (struct frame_info *next_frame,
void **this_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
int *realnump, void *valuep)
{
/* Make sure we've initialized the cache. */
frv_sigtramp_frame_cache (next_frame, this_cache);
frv_frame_prev_register (next_frame, this_cache, regnum,
optimizedp, lvalp, addrp, realnump, valuep);
}
static const struct frame_unwind frv_sigtramp_frame_unwind =
{
SIGTRAMP_FRAME,
frv_sigtramp_frame_this_id,
frv_sigtramp_frame_prev_register
};
static const struct frame_unwind *
frv_sigtramp_frame_sniffer (struct frame_info *next_frame)
{
CORE_ADDR pc = frame_pc_unwind (next_frame);
char *name;
/* We shouldn't even bother to try if the OSABI didn't register
a sigcontext_reg_addr handler. */
if (!gdbarch_tdep (current_gdbarch)->sigcontext_reg_addr)
return NULL;
find_pc_partial_function (pc, &name, NULL, NULL);
if (DEPRECATED_PC_IN_SIGTRAMP (pc, name))
return &frv_sigtramp_frame_unwind;
return NULL;
}
static struct gdbarch *
frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
@ -1667,9 +1557,6 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
/* Set the sigtramp frame sniffer. */
frame_unwind_append_sniffer (gdbarch, frv_sigtramp_frame_sniffer);
/* Set the fallback (prologue based) frame sniffer. */
frame_unwind_append_sniffer (gdbarch, frv_frame_sniffer);