Commit Graph

30 Commits

Author SHA1 Message Date
Jim Blandy 03a013f4d3 * s390-tdep.c (s390_store_return_value): Don't convert float
values to double format when returning them; just return them in
the first half of the FP register, as the ABI specifies.
2001-12-07 22:49:25 +00:00
Jim Blandy 12bffad7cc * s390-tdep.c (s390_get_frame_info): Recognize argument register
spills that use the `stm' instruction.
(is_arg_reg): New function.
2001-12-05 22:20:00 +00:00
Jim Blandy 7666f43c32 * s390-tdep.c (s390_get_frame_info): Recognize spills of reg
arguments into their stack slots.
2001-12-05 00:20:37 +00:00
Jim Blandy 7286245e1f * s390-tdep.c (s390_get_frame_info): More doc fixes. 2001-12-05 00:07:50 +00:00
Jim Blandy 6df29de21e * s390-tdep.c (s390_get_frame_info): Doc fixes. 2001-12-04 23:51:55 +00:00
Jim Blandy 386e4208fc * s390-tdep.c (s390_get_frame_info): Don't used fextra_info to set
orig_sp if it's not initialized.
2001-12-03 18:48:54 +00:00
Jim Blandy c8f9d51ce2 Tighten up GDB's support for returning structs by value.
* s390-tdep.c (s390_use_struct_convention): New function.
(s390_gdbarch_init): Register it as the S/390's
USE_STRUCT_CONVENTION method.  Register
generic_cannot_extract_struct_value_address as our
EXTRACT_STRUCT_VALUE_ADDRESS method.
* arch-utils.c (generic_cannot_extract_struct_value_address): New
function.
* arch-utils.h: Add corresponding prototype.
2001-11-29 22:24:42 +00:00
Jim Blandy d0ad30c93c * s390-tdep.c (s390_frame_saved_pc_nofix): If the prologue didn't
save the return address register, assume that the return address
is still in there.
2001-11-29 05:02:37 +00:00
Jim Blandy 5c3cf190c0 * s390-tdep.c: Get frame chains and saved pc values properly from
dummy frames.
(s390_frame_saved_pc_nofix): if `*fi' is a dummy frame, get the
saved PC from the dummy frame's registers.
(s390_frame_chain): Same for the saved SP.
(s390_gdbarch_init): Register `generic_save_dummy_frame_tos' as
the `SAVE_DUMMY_FRAME_TOS' method, so the dummy frame's `top' gets
set correctly.
2001-11-28 03:40:50 +00:00
Jim Blandy 31c4d430c4 * s390-tdep.c (s390_frame_chain): Remember that the SP's element
of the frame's saved_regs array is special.
2001-11-28 03:36:36 +00:00
Jim Blandy b1d4dcac5b * s390-tdep.c (s390_push_dummy_frame): Delete function; it's no
longer used.
2001-11-27 22:48:26 +00:00
Jim Blandy 4ed90530f6 * s390-tdep.c (register_names): Call the general-purpose registers
`r0' -- `r15', and the floating-point registers `f0' -- `f15', to
match the assembly language.
2001-11-27 22:19:55 +00:00
Jim Blandy 20a940cc8c * s390-tdep.c: Tweak argument-passing to match GCC bugs.
(is_float_singleton, is_struct_like, is_float_like): New
functions, that isolate the weirdness.
(is_double_or_float, is_simple_arg, pass_by_copy_ref,
is_double_arg): Use is_struct_like and is_float_like, rather than
testing the type codes ourselves.
(s390_push_arguments): When passing args on the stack, align each
on to a four-byte boundary, regardless of what the type itself
needs.
2001-11-16 21:40:36 +00:00
Jim Blandy a1677dfb5e * s390-tdep.c (is_simple_arg): Structs and unions exactly eight
bytes long should be handled as DOUBLE_ARGs; don't recognize them
as SIMPLE_ARGs.
2001-11-16 02:48:30 +00:00
Jim Blandy 9a1befc916 * s390-tdep.c (s390_pop_frame_regular): On the S/390, the frame
pointer and the SP are often the same, so we can't pop the frame
by setting the SP to the FP; we need to get the old SP from
saved_regs.
2001-11-14 22:34:38 +00:00
Jim Blandy f2c6cfba86 * s390-tdep.c (s390_extract_return_value): Returned `float' values
can simply be copied bitwise from the registers into the value
object's buffer.
2001-11-14 22:29:39 +00:00
Jim Blandy 0902523724 * s390-tdep.c (s390_get_frame_info): Initialize SP's element of
the frame's saved_regs array correctly.
2001-11-14 22:14:11 +00:00
Jim Blandy 78f8b4242f * s390-tdep.c: Rewrite inferior function call code. This may
break zSeries support; that should be fixed soon.
#include "gdb_assert.h".
(is_integer_like, is_pointer_like, is_simple_arg,
pass_by_copy_ref, extend_simple_arg, is_double_arg, round_up,
round_down, alignment_of): New functions.
(s390_push_arguments): Rewritten to handle passing large arguments
by value, and to make more readable.
2001-11-13 17:47:19 +00:00
Jim Blandy 4c8287ac0c * s390-tdep.c (s390_pop_frame): Call generic_pop_current_frame, to
interact correctly with generic dummy frames.
(s390_pop_frame_regular): Move the guts of the frame-popping code
to here, to be called by generic_pop_current_frame.  Use the
frame's saved_regs array; this works for `return' as well as
inferior function calls.
2001-11-13 17:38:49 +00:00
Jim Blandy 0adb2abaa6 * s390-tdep.c (s390_gdbarch_init): Register the function
`standard_coerce_float_to_double', since GCC for the S/390 follows
the standard rules for passing floats.
2001-11-13 17:26:46 +00:00
Jim Blandy d4d0c21e8f * s390-tdep.c: Don't use a call dummy.
(s390_fix_call_dummy, s390_pc_in_call_dummy): Delete.
(s390_push_return_address): Put the address of the inferior call
breakpoint in r14.
(s390_gdbarch_init):
- Provide trivial definition of s390_call_dummy_words; register it
  with the gdbarch appropriately.
- Delete S390x_call_dummy_words.
- Gather inferior-call-related settings into a group.
- Use generic dummy frames.
- Put the inferior call breakpoint at the entry point.
- Use generic gdbarch methods: pc_in_call_dummy_at_entry_point,
  generic_push_dummy_frame, generic_fix_call_dummy.
- There is a call dummy breakpoint offset; it's zero.
2001-11-09 19:14:00 +00:00
Jim Blandy 01c464e928 * s390-nat.c: (s390_push_arguments): Write a back chain pointer
into the dummy frame, to help us get backtraces.
2001-11-09 18:58:14 +00:00
Jim Blandy 64f9bb983b * s390-tdep.c (s390_get_frame_info): Initialize got_load_addr and
got_load_len, to placate compiler.
2001-11-08 23:28:36 +00:00
Jim Blandy 8001d1e4ef * s390-tdep.c (s390_gdbarch_init): Use func_frame_chain_valid, not
file_frame_chain_valid.
2001-11-08 19:16:10 +00:00
Jim Blandy 8ac0e65a44 * s390-tdep.c (s390_get_frame_info): If the prologue loads r12
from the constant pool, but doesn't add in the constant pool's
address to it, then this function probably isn't using r12 as a
GOT pointer, and that load probably wasn't part of the prologue.
2001-11-08 19:06:04 +00:00
Jim Blandy 4c801202fe * s390-tdep.c (s390_gdbarch_init): Use the default
prepare_to_proceed function established by config/nm-linux.h;
don't try to set it to linuxthreads_prepare_to_proceed.
2001-11-08 19:03:54 +00:00
Andrew Cagney d45fc520b1 s/value_ptr/struct value */ 2001-11-01 01:21:35 +00:00
Andrew Cagney 60e6cc428d From DJ Barrow.
* s390-tdep.c: (s390_gdbarch_init): Don't initialize
find_solib_trampoline_target.
2001-10-31 22:57:46 +00:00
Andrew Cagney fd0407d670 Add explicit #include of "value.h". 2001-10-21 17:19:38 +00:00
Andrew Cagney 5769d3cd7d S/390 31 & 64 bit target and GNU/Linux native support.
Contributed by D.J. Barrow <djbarrow@de.ibm.com> of IBM.
* s390-nat.c, s390-tdep.c: New file.
* config/s390/nm-linux.h, config/s390/s390.mh: New file.
* config/s390/s390.mt, config/s390/s390x.mt: New file.
* config/s390/tm-linux.h, config/s390/tm-s390.h: New file.
* config/s390/xm-linux.h: New file.
* NEWS: Update.
* MAINTAINERS: Update.
2001-10-13 22:13:35 +00:00