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authorAndrew Cagney <cagney@redhat.com>2004-03-07 18:06:14 +0000
committerAndrew Cagney <cagney@redhat.com>2004-03-07 18:06:14 +0000
commit78161e4820b9668db2fcf81c3446997b9140ac4a (patch)
treedba2de561c59b0d7a66d1818d4aab75cf6523065 /gdb/config/pa
parent782eae8b5428ef7a8b6b444536558c6491c39d6b (diff)
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2004-03-07 Andrew Cagney <cagney@redhat.com>
* infcall.c (legacy_push_dummy_code): Delete #ifdef GDB_TARGET_IS_HPPA code. * config/pa/tm-hppa.h (DEPRECATED_FIX_CALL_DUMMY) (hppa_fix_call_dummy, DEPRECATED_CALL_DUMMY_HAS_COMPLETED) (DEPRECATED_DUMMY_WRITE_SP, CALL_DUMMY): Delete. * config/pa/tm-hppa64.h (CALL_DUMMY): Delete. * hppa-tdep.c (hppa_frame_chain, hppa_frame_chain_valid) (hppa_push_dummy_frame, hppa_pop_frame, hppa_push_arguments) (hppa_fix_call_dummy, hppa64_stack_align, hppa_frame_saved_pc) (hppa_init_extra_frame_info, hppa_saved_pc_after_call) (hppa64_call_dummy_breakpoint_offset, hppa_frame_init_saved_regs) (hppa_frameless_function_invocation, hppa64_store_return_value) (hppa_store_struct_return, hppa64_extract_return_value) (hppa64_use_struct_convention, hppa_frame_find_saved_regs) (hppa32_call_dummy_length, hppa64_call_dummy_length) (find_dummy_frame_regs, FUNC_LDIL_OFFSET, FUNC_LDO_OFFSET) (find_proc_framesize, deposit_21, restore_pc_queue) (find_return_regnum, pc_in_interrupt_handler, deposit_14) (rp_saved, pc_in_linker_stub):
Diffstat (limited to 'gdb/config/pa')
-rw-r--r--gdb/config/pa/tm-hppa.h97
-rw-r--r--gdb/config/pa/tm-hppa64.h46
2 files changed, 0 insertions, 143 deletions
diff --git a/gdb/config/pa/tm-hppa.h b/gdb/config/pa/tm-hppa.h
index 9924ffa..c824bf5 100644
--- a/gdb/config/pa/tm-hppa.h
+++ b/gdb/config/pa/tm-hppa.h
@@ -26,9 +26,6 @@
#include "regcache.h"
-/* Wonder if this is correct? Should be using push_dummy_call(). */
-#define DEPRECATED_DUMMY_WRITE_SP(SP) deprecated_write_sp (SP)
-
#define GDB_MULTI_ARCH 1
/* Hack, get around problem with including "arch-utils.h". */
@@ -107,102 +104,8 @@ extern int hppa_instruction_nullified (void);
#define INSTRUCTION_SIZE 4
-/* This sequence of words is the instructions
-
- ; Call stack frame has already been built by gdb. Since we could be calling
- ; a varargs function, and we do not have the benefit of a stub to put things in
- ; the right place, we load the first 4 word of arguments into both the general
- ; and fp registers.
- call_dummy
- ldw -36(sp), arg0
- ldw -40(sp), arg1
- ldw -44(sp), arg2
- ldw -48(sp), arg3
- ldo -36(sp), r1
- fldws 0(0, r1), fr4
- fldds -4(0, r1), fr5
- fldws -8(0, r1), fr6
- fldds -12(0, r1), fr7
- ldil 0, r22 ; FUNC_LDIL_OFFSET must point here
- ldo 0(r22), r22 ; FUNC_LDO_OFFSET must point here
- ldsid (0,r22), r4
- ldil 0, r1 ; SR4EXPORT_LDIL_OFFSET must point here
- ldo 0(r1), r1 ; SR4EXPORT_LDO_OFFSET must point here
- ldsid (0,r1), r20
- combt,=,n r4, r20, text_space ; If target is in data space, do a
- ble 0(sr5, r22) ; "normal" procedure call
- copy r31, r2
- break 4, 8
- mtsp r21, sr0
- ble,n 0(sr0, r22)
- text_space ; Otherwise, go through _sr4export,
- ble (sr4, r1) ; which will return back here.
- stw r31,-24(r30)
- break 4, 8
- mtsp r21, sr0
- ble,n 0(sr0, r22)
- nop ; To avoid kernel bugs
- nop ; and keep the dummy 8 byte aligned
-
- The dummy decides if the target is in text space or data space. If
- it's in data space, there's no problem because the target can
- return back to the dummy. However, if the target is in text space,
- the dummy calls the secret, undocumented routine _sr4export, which
- calls a function in text space and can return to any space. Instead
- of including fake instructions to represent saved registers, we
- know that the frame is associated with the call dummy and treat it
- specially.
-
- The trailing NOPs are needed to avoid a bug in HPUX, BSD and OSF1
- kernels. If the memory at the location pointed to by the PC is
- 0xffffffff then a ptrace step call will fail (even if the instruction
- is nullified).
-
- The code to pop a dummy frame single steps three instructions
- starting with the last mtsp. This includes the nullified "instruction"
- following the ble (which is uninitialized junk). If the
- "instruction" following the last BLE is 0xffffffff, then the ptrace
- will fail and the dummy frame is not correctly popped.
-
- By placing a NOP in the delay slot of the BLE instruction we can be
- sure that we never try to execute a 0xffffffff instruction and
- avoid the kernel bug. The second NOP is needed to keep the call
- dummy 8 byte aligned. */
-
-#define CALL_DUMMY {0x4BDA3FB9, 0x4BD93FB1, 0x4BD83FA9, 0x4BD73FA1,\
- 0x37C13FB9, 0x24201004, 0x2C391005, 0x24311006,\
- 0x2C291007, 0x22C00000, 0x36D60000, 0x02C010A4,\
- 0x20200000, 0x34210000, 0x002010b4, 0x82842022,\
- 0xe6c06000, 0x081f0242, 0x00010004, 0x00151820,\
- 0xe6c00002, 0xe4202000, 0x6bdf3fd1, 0x00010004,\
- 0x00151820, 0xe6c00002, 0x08000240, 0x08000240}
-
#define REG_PARM_STACK_SPACE 16
-/* If we've reached a trap instruction within the call dummy, then
- we'll consider that to mean that we've reached the call dummy's
- end after its successful completion. */
-#define DEPRECATED_CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
- (DEPRECATED_PC_IN_CALL_DUMMY((pc), (sp), (frame_address)) && \
- (read_memory_integer((pc), 4) == BREAKPOINT32))
-
-/* Insert the specified number of args and function address into a
- call sequence of the above form stored at DUMMYNAME.
-
- On the hppa we need to call the stack dummy through $$dyncall.
- Therefore our version of DEPRECATED_FIX_CALL_DUMMY takes an extra
- argument, real_pc, which is the location where gdb should start up
- the inferior to do the function call. */
-
-/* FIXME: brobecker 2002-12-26. This macro is going to cause us some
- problems before we can go to multiarch partial as it has been
- diverted on HPUX to return the value of the PC! */
-/* NOTE: cagney/2003-05-03: This has been replaced by push_dummy_code.
- Hopefully that has all the parameters HP/UX needs. */
-#define DEPRECATED_FIX_CALL_DUMMY hppa_fix_call_dummy
-extern CORE_ADDR hppa_fix_call_dummy (char *, CORE_ADDR, CORE_ADDR, int,
- struct value **, struct type *, int);
-
#define GDB_TARGET_IS_HPPA
/*
diff --git a/gdb/config/pa/tm-hppa64.h b/gdb/config/pa/tm-hppa64.h
index 62bcebc..79fd15c 100644
--- a/gdb/config/pa/tm-hppa64.h
+++ b/gdb/config/pa/tm-hppa64.h
@@ -57,52 +57,6 @@ extern int hpread_adjust_stack_address (CORE_ADDR);
/* jimb: omitted dynamic linking stuff here */
-/* This sequence of words is the instructions
-
-; Call stack frame has already been built by gdb. Since we could be calling
-; a varargs function, and we do not have the benefit of a stub to put things in
-; the right place, we load the first 8 word of arguments into both the general
-; and fp registers.
-call_dummy
- nop
- copy %r4,%r29
- copy %r5,%r22
- copy %r6,%r27
- fldd -64(0,%r29),%fr4
- fldd -56(0,%r29),%fr5
- fldd -48(0,%r29),%fr6
- fldd -40(0,%r29),%fr7
- fldd -32(0,%r29),%fr8
- fldd -24(0,%r29),%fr9
- fldd -16(0,%r29),%fr10
- fldd -8(0,%r29),%fr11
- copy %r22,%r1
- ldd -64(%r29), %r26
- ldd -56(%r29), %r25
- ldd -48(%r29), %r24
- ldd -40(%r29), %r23
- ldd -32(%r29), %r22
- ldd -24(%r29), %r21
- ldd -16(%r29), %r20
- bve,l (%r1),%r2
- ldd -8(%r29), %r19
- break 4, 8
- mtsp %r21, %sr0
- ble 0(%sr0, %r22)
- nop
-*/
-
-/* Call dummys are sized and written out in word sized hunks. So we have
- to pack the instructions into words. Ugh. */
-#undef CALL_DUMMY
-#define CALL_DUMMY {0x08000240349d0000LL, 0x34b6000034db0000LL, \
- 0x53a43f8353a53f93LL, 0x53a63fa353a73fb3LL,\
- 0x53a83fc353a93fd3LL, 0x2fa1100a2fb1100bLL,\
- 0x36c1000053ba3f81LL, 0x53b93f9153b83fa1LL,\
- 0x53b73fb153b63fc1LL, 0x53b53fd10fa110d4LL,\
- 0xe820f0000fb110d3LL, 0x0001000400151820LL,\
- 0xe6c0000008000240LL}
-
/* The PA64 ABI reserves 64 bytes of stack space for outgoing register
parameters. */
#undef REG_PARM_STACK_SPACE