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* alpha-tdep.c (init_extra_frame_info): Remove kludge for gcc, 

gcc has to be compatible with the native tools.
	* alpha-tdep.c (alpha_push_arguments):  Rename NUM_ARG_REGS to
	ALPHA_NUM_ARG_REGS and move its definition to tm-alpha.h.
	* config/alpha/tm-alpha.h (FRAME_ARGS_ADDRESS):  Change it to the
	way the native tools define it, update comment.
This commit is contained in:
Peter Schauer 1993-10-11 09:55:41 +00:00
parent c18b613acd
commit 3e6b06745c
2 changed files with 14 additions and 25 deletions
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9
gdb/ChangeLog
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@ -1,3 +1,12 @@
Mon Oct 11 02:48:57 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* alpha-tdep.c (init_extra_frame_info): Remove kludge for gcc,
gcc has to be compatible with the native tools.
* alpha-tdep.c (alpha_push_arguments): Rename NUM_ARG_REGS to
ALPHA_NUM_ARG_REGS and move its definition to tm-alpha.h.
* config/alpha/tm-alpha.h (FRAME_ARGS_ADDRESS): Change it to the
way the native tools define it, update comment.
Fri Oct 8 15:54:06 1993 Fred Fish (fnf@deneb.cygnus.com)
* osfsolib.c, remote-sim.c, remote.c, solib.c, xcoffexec.c,

30
gdb/alpha-tdep.c
View File

@ -71,8 +71,8 @@ static unsigned int heuristic_fence_post = 0;
| |localoff | Copies of 1st .. 6th |
| | | | | argument if necessary. |
| | | v | |
| | | --- |-------------------------------|<-- FRAME_ARGS_ADDRESS,
| | | | | FRAME_LOCALS_ADDRESS
| | | --- |-------------------------------|<-- FRAME_LOCALS_ADDRESS
| | | | |
| | | | Locals and temporaries. |
| | | | |
| | | |-------------------------------|
@ -469,24 +469,6 @@ init_extra_frame_info(fci)
even if we are in the middle of the prologue. */
fci->localoff = PROC_LOCALOFF(proc_desc);
/* FIXME: This is a kludge for gcc-2.4.5.
gcc-2.4.5 builds frames for the alpha in a peculiar way.
It uses $fp as a frame register (which seems to be identical to $sp
in all procedures that do not use alloca).
It has the arguments and the locals above the frame register, if
there are few arguments then the locals are above the arguments,
otherwise the arguments are above the local.
Frame offsets for arguments and locals are relative to $fp and always
positive.
If we want to stay compatible with the native cc compiler we have
to set localoff to frameoffset so that FRAME_ARGS_ADDRESS and
FRAME_LOCALS_ADDRESS point to the right place in the frame.
Please note that the setting of localoff in the compiler won't work
as localoff is only 8 bits wide (which is enough for cc as it needs
at most number_of_arg_regs * 8 == 48). */
if (PROC_FRAME_REG(proc_desc) == GCC_FP_REGNUM)
fci->localoff = PROC_FRAME_OFFSET(proc_desc);
/* Fixup frame-pointer - only needed for top frame */
/* Fetch the frame pointer for a dummy frame from the procedure
descriptor. */
@ -603,8 +585,6 @@ setup_arbitrary_frame (argc, argv)
If the called function is returning a structure, the address of the
structure to be returned is passed as a hidden first argument. */
#define NUM_ARG_REGS 6
CORE_ADDR
alpha_push_arguments (nargs, args, sp, struct_return, struct_addr)
int nargs;
@ -615,7 +595,7 @@ alpha_push_arguments (nargs, args, sp, struct_return, struct_addr)
{
register i;
int accumulate_size = struct_return ? 8 : 0;
int arg_regs_size = NUM_ARG_REGS * 8;
int arg_regs_size = ALPHA_NUM_ARG_REGS * 8;
struct alpha_arg { char *contents; int len; int offset; };
struct alpha_arg *alpha_args =
(struct alpha_arg*)alloca (nargs * sizeof (struct alpha_arg));
@ -638,8 +618,8 @@ alpha_push_arguments (nargs, args, sp, struct_return, struct_addr)
/* Determine required argument register loads, loading an argument register
is expensive as it uses three ptrace calls. */
required_arg_regs = accumulate_size / 8;
if (required_arg_regs > NUM_ARG_REGS)
required_arg_regs = NUM_ARG_REGS;
if (required_arg_regs > ALPHA_NUM_ARG_REGS)
required_arg_regs = ALPHA_NUM_ARG_REGS;
/* Make room for the arguments on the stack. */
if (accumulate_size < arg_regs_size)