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* h8300-tdep.c (h8300_push_arguments): Remove. Substitute by...

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(h8300_push_dummy_call): ...this function.  Some minor optimization.
	(h8300_push_return_address): Remove.
	(h8300_gdbarch_init): Remove calls to
	set_gdbarch_deprecated_dummy_write_sp,
	set_gdbarch_deprecated_push_arguments and
	set_gdbarch_deprecated_push_return_address.
	Add call to set_gdbarch_push_dummy_call.
This commit is contained in:
Corinna Vinschen 2003-06-16 19:40:51 +00:00
parent 4bb1dc5eb2
commit 63d47a7dcc
2 changed files with 30 additions and 42 deletions
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11
gdb/ChangeLog
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@ -1,3 +1,14 @@
2003-06-16 Corinna Vinschen <vinschen@redhat.com>
* h8300-tdep.c (h8300_push_arguments): Remove. Substitute by...
(h8300_push_dummy_call): ...this function. Some minor optimization.
(h8300_push_return_address): Remove.
(h8300_gdbarch_init): Remove calls to
set_gdbarch_deprecated_dummy_write_sp,
set_gdbarch_deprecated_push_arguments and
set_gdbarch_deprecated_push_return_address.
Add call to set_gdbarch_push_dummy_call.
2003-06-16 Corinna Vinschen <vinschen@redhat.com>
* h8300-tdep.c (E_PSEUDO_CCR_REGNUM): New define.

61
gdb/h8300-tdep.c
View File

@ -564,7 +564,7 @@ h8300_init_extra_frame_info (int fromleaf, struct frame_info *fi)
#define round_up(n, unit) (((n) + (unit) - 1) & -(unit))
#define round_down(n, unit) ((n) & -(unit))
/* Function: push_arguments
/* Function: push_dummy_call
Setup the function arguments for calling a function in the inferior.
In this discussion, a `word' is 16 bits on the H8/300s, and 32 bits
on the H8/300H.
@ -629,12 +629,14 @@ h8300_init_extra_frame_info (int fromleaf, struct frame_info *fi)
to begin with. */
static CORE_ADDR
h8300_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
h8300_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
struct value **args, CORE_ADDR sp, int struct_return,
CORE_ADDR struct_addr)
{
int stack_align, stack_alloc, stack_offset;
int stack_alloc = 0, stack_offset = 0;
int wordsize = BINWORD;
int reg;
int reg = E_ARG0_REGNUM;
int argument;
/* First, make sure the stack is properly aligned. */
@ -642,22 +644,18 @@ h8300_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
/* Now make sure there's space on the stack for the arguments. We
may over-allocate a little here, but that won't hurt anything. */
stack_alloc = 0;
for (argument = 0; argument < nargs; argument++)
stack_alloc += round_up (TYPE_LENGTH (VALUE_TYPE (args[argument])),
wordsize);
sp -= stack_alloc;
/* Now load as many arguments as possible into registers, and push
the rest onto the stack. */
reg = E_ARG0_REGNUM;
stack_offset = 0;
/* If we're returning a structure by value, then we must pass a
the rest onto the stack.
If we're returning a structure by value, then we must pass a
pointer to the buffer for the return value as an invisible first
argument. */
if (struct_return)
write_register (reg++, struct_addr);
regcache_cooked_write_unsigned (regcache, reg++, struct_addr);
for (argument = 0; argument < nargs; argument++)
{
@ -701,7 +699,7 @@ h8300_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
{
ULONGEST word = extract_unsigned_integer (padded + offset,
wordsize);
write_register (reg++, word);
regcache_cooked_write_unsigned (regcache, reg++, word);
}
}
}
@ -717,24 +715,13 @@ h8300_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
}
}
return sp;
}
/* Function: push_return_address
Setup the return address for a dummy frame, as called by
call_function_by_hand. Only necessary when you are using an
empty CALL_DUMMY, ie. the target will not actually be executing
a JSR/BSR instruction. */
static CORE_ADDR
h8300_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
{
unsigned char buf[4];
int wordsize = BINWORD;
/* Store return address. */
sp -= wordsize;
store_unsigned_integer (buf, wordsize, CALL_DUMMY_ADDRESS ());
write_memory (sp, buf, wordsize);
write_memory_unsigned_integer (sp, wordsize, bp_addr);
/* Update stack pointer. */
regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
return sp;
}
@ -1297,6 +1284,7 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_deprecated_saved_pc_after_call (gdbarch,
h8300_saved_pc_after_call);
set_gdbarch_deprecated_frame_saved_pc (gdbarch, h8300_frame_saved_pc);
set_gdbarch_deprecated_pop_frame (gdbarch, h8300_pop_frame);
/*
* Miscelany
@ -1318,6 +1306,7 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_use_struct_convention (gdbarch, always_use_struct_convention);
set_gdbarch_breakpoint_from_pc (gdbarch, h8300_breakpoint_from_pc);
set_gdbarch_push_dummy_code (gdbarch, h8300_push_dummy_code);
set_gdbarch_push_dummy_call (gdbarch, h8300_push_dummy_call);
set_gdbarch_int_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
@ -1328,18 +1317,6 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* set_gdbarch_stack_align (gdbarch, SOME_stack_align); */
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
/*
* Call Dummies
*
* These values and methods are used when gdb calls a target function. */
/* Can all be replaced by push_dummy_call */
set_gdbarch_deprecated_push_return_address (gdbarch,
h8300_push_return_address);
set_gdbarch_deprecated_push_arguments (gdbarch, h8300_push_arguments);
set_gdbarch_deprecated_pop_frame (gdbarch, h8300_pop_frame);
set_gdbarch_deprecated_dummy_write_sp (gdbarch, deprecated_write_sp);
return gdbarch;
}