aboutsummaryrefslogtreecommitdiff
path: root/gdb/config/a29k/tm-a29k.h
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/config/a29k/tm-a29k.h')
-rw-r--r--gdb/config/a29k/tm-a29k.h197
1 files changed, 101 insertions, 96 deletions
diff --git a/gdb/config/a29k/tm-a29k.h b/gdb/config/a29k/tm-a29k.h
index 8eb476e..5d759e7 100644
--- a/gdb/config/a29k/tm-a29k.h
+++ b/gdb/config/a29k/tm-a29k.h
@@ -2,21 +2,22 @@
Copyright 1990, 1991, 1993, 1994 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by Jim Kingdon.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* Parameters for an EB29K (a board which plugs into a PC and is
accessed through EBMON software running on the PC, which we
@@ -135,7 +136,7 @@ CORE_ADDR a29k_skip_prologue ();
/*
* Converts an sdb register number to an internal gdb register number.
* Currently under epi, gr96->0...gr127->31...lr0->32...lr127->159, or...
- * gr64->0...gr95->31, lr0->32...lr127->159.
+ * gr64->0...gr95->31, lr0->32...lr127->159.
*/
#define SDB_REG_TO_REGNUM(value) \
(((value) >= 96 && (value) <= 127) ? ((value) - 96) : \
@@ -148,8 +149,8 @@ CORE_ADDR a29k_skip_prologue ();
* register sets. Namely, gcc can compile (-mkernel-registers) so that
* it uses gr64-gr95 in stead of gr96-gr127.
*/
-#define MSP_HW_REGNUM 125 /* gr125 */
-#define RAB_HW_REGNUM 126 /* gr126 */
+#define MSP_HW_REGNUM 125 /* gr125 */
+#define RAB_HW_REGNUM 126 /* gr126 */
/* Convert Processor Special register #x to REGISTER_NAMES register # */
#define SR_REGNUM(x) \
@@ -170,7 +171,7 @@ CORE_ADDR a29k_skip_prologue ();
/* This needs to be the memory stack pointer, not the register stack pointer,
to make call_function work right. */
#define SP_REGNUM MSP_REGNUM
-#define FP_REGNUM 33 /* lr1 */
+#define FP_REGNUM 33 /* lr1 */
/* Return register for transparent calling convention (gr122). */
#define TPC_REGNUM (122 - 96 + GR96_REGNUM)
@@ -207,8 +208,8 @@ CORE_ADDR a29k_skip_prologue ();
#define RBP_REGNUM (VAB_REGNUM + 7)
#define TMC_REGNUM (VAB_REGNUM + 8)
#define TMR_REGNUM (VAB_REGNUM + 9)
-#define NPC_REGNUM (VAB_REGNUM + 10) /* pc0 */
-#define PC_REGNUM (VAB_REGNUM + 11) /* pc1 */
+#define NPC_REGNUM (VAB_REGNUM + 10) /* pc0 */
+#define PC_REGNUM (VAB_REGNUM + 11) /* pc1 */
#define PC2_REGNUM (VAB_REGNUM + 12)
#define MMU_REGNUM (VAB_REGNUM + 13)
#define LRU_REGNUM (VAB_REGNUM + 14)
@@ -223,7 +224,7 @@ CORE_ADDR a29k_skip_prologue ();
#define IPA_REGNUM (VAB_REGNUM + 22)
#define IPB_REGNUM (VAB_REGNUM + 23)
-#endif /* !defined(REGISTER_NAMES) */
+#endif /* !defined(REGISTER_NAMES) */
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. */
@@ -309,8 +310,7 @@ extern use_struct_convention_fn a29k_use_struct_convention;
write_register_bytes (REGISTER_BYTE (RETURN_REGNUM), (char *)(VALBUF), \
TYPE_LENGTH (TYPE)); \
}
-
-/* *INDENT-OFF* */
+ /* *INDENT-OFF* */
/* The a29k user's guide documents well what the stacks look like.
But what isn't so clear there is how this interracts with the
symbols, or with GDB.
@@ -321,10 +321,10 @@ extern use_struct_convention_fn a29k_use_struct_convention;
alloca()), the result of the calculation msp + msize.
LOC_ARG, LOC_LOCAL - For GCC, these are relative to saved_msp.
- For high C, these are relative to msp (making alloca impossible).
+ For high C, these are relative to msp (making alloca impossible).
LOC_REGISTER, LOC_REGPARM - The register number is the number at the
- time the function is running (after the prologue), or in the case
- of LOC_REGPARM, may be a register number in the range 160-175.
+ time the function is running (after the prologue), or in the case
+ of LOC_REGPARM, may be a register number in the range 160-175.
The compilers do things like store an argument into memory, and then put out
a LOC_ARG for it, or put it into global registers and put out a
@@ -349,74 +349,75 @@ extern use_struct_convention_fn a29k_use_struct_convention;
registers need to be filled in the function epilogue.
Consider the code:
- < call bar>
- loc1: . . .
- bar: sub gr1,gr1,rsize_b
- . . .
- add mfp,msp,0
- sub msp,msp,msize_b
- . . .
- < call foo >
- loc2: . . .
- foo: sub gr1,gr1,rsize_f
- . . .
- add mfp,msp,0
- sub msp,msp,msize_f
- . . .
- loc3: < suppose the inferior stops here >
-
- memory stack register stack
- | | |____________|
- | | |____loc1____|
- +------->|___________| | | ^
- | | ^ | | locals_b | |
- | | | | |____________| |
- | | | | | | | rsize_b
- | | | msize_b | | args_to_f | |
- | | | | |____________| |
- | | | | |____lr1_____| V
- | | V | |____loc2____|<----------------+
- | +--->|___________|<---------mfp | ^ |
- | | | ^ | | locals_f | | |
- | | | | msize_f | |____________| | |
- | | | | | | | | rsize_f |
- | | | V | | args | | |
- | | |___________|<msp |____________| | |
- | | |_____lr1____| V |
- | | |___garbage__| <- gr1 <----+ |
- | | | |
- | | | |
- | | pc=loc3 | |
- | | | |
- | | | |
- | | frame cache | |
- | | |_________________| | |
- | | |rsize=rsize_b | | |
- | | |msize=msize_b | | |
- +---|--------saved_msp | | |
- | |frame------------------------------------|---+
- | |pc=loc2 | |
- | |_________________| |
- | |rsize=rsize_f | |
- | |msize=msize_f | |
- +--------saved_msp | |
- |frame------------------------------------+
- |pc=loc3 |
- |_________________|
+ < call bar>
+ loc1: . . .
+ bar: sub gr1,gr1,rsize_b
+ . . .
+ add mfp,msp,0
+ sub msp,msp,msize_b
+ . . .
+ < call foo >
+ loc2: . . .
+ foo: sub gr1,gr1,rsize_f
+ . . .
+ add mfp,msp,0
+ sub msp,msp,msize_f
+ . . .
+ loc3: < suppose the inferior stops here >
+
+ memory stack register stack
+ | | |____________|
+ | | |____loc1____|
+ +------->|___________| | | ^
+ | | ^ | | locals_b | |
+ | | | | |____________| |
+ | | | | | | | rsize_b
+ | | | msize_b | | args_to_f | |
+ | | | | |____________| |
+ | | | | |____lr1_____| V
+ | | V | |____loc2____|<----------------+
+ | +--->|___________|<---------mfp | ^ |
+ | | | ^ | | locals_f | | |
+ | | | | msize_f | |____________| | |
+ | | | | | | | | rsize_f |
+ | | | V | | args | | |
+ | | |___________|<msp |____________| | |
+ | | |_____lr1____| V |
+ | | |___garbage__| <- gr1 <----+ |
+ | | | |
+ | | | |
+ | | pc=loc3 | |
+ | | | |
+ | | | |
+ | | frame cache | |
+ | | |_________________| | |
+ | | |rsize=rsize_b | | |
+ | | |msize=msize_b | | |
+ +---|--------saved_msp | | |
+ | |frame------------------------------------|---+
+ | |pc=loc2 | |
+ | |_________________| |
+ | |rsize=rsize_f | |
+ | |msize=msize_f | |
+ +--------saved_msp | |
+ |frame------------------------------------+
+ |pc=loc3 |
+ |_________________|
So, is that sufficiently confusing? Welcome to the 29000.
Notes:
* The frame for foo uses a memory frame pointer but the frame for
- bar does not. In the latter case the saved_msp is
- computed by adding msize to the saved_msp of the
- next frame.
+ bar does not. In the latter case the saved_msp is
+ computed by adding msize to the saved_msp of the
+ next frame.
* msize is in the frame cache only for high C's sake. */
/* *INDENT-ON* */
+
void read_register_stack ();
long read_register_stack_integer ();
-#define FRAME_INIT_SAVED_REGS(fi) /*no-op*/
+#define FRAME_INIT_SAVED_REGS(fi) /*no-op */
#define EXTRA_FRAME_INFO \
CORE_ADDR saved_msp; \
@@ -436,8 +437,8 @@ void init_extra_frame_info ();
#define INIT_FRAME_PC(fromleaf, fci) init_frame_pc(fromleaf, fci)
void init_frame_pc ();
-
+
/* FRAME_CHAIN takes a FRAME
and produces the frame's chain-pointer.
@@ -510,7 +511,7 @@ extern CORE_ADDR frame_locals_address ();
enum lval_type;
struct frame_info;
#endif
-void a29k_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lvalp));
+void a29k_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADDR * addrp, struct frame_info * frame, int regnum, enum lval_type * lvalp));
#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
a29k_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
@@ -567,6 +568,8 @@ void a29k_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADD
retaddr_dummy: This points to a breakpoint instruction in the dummy. */
/* *INDENT-ON* */
+
+
/* Rsize for dummy frame, in bytes. */
/* Bytes for outgoing args, lr1, and retaddr. */
@@ -603,14 +606,14 @@ extern void pop_frame ();
mtsrim cr, 15
loadm 0, 0, lr2, msp ; load first 16 words of arguments into registers
add msp, msp, 16 * 4 ; point to the remaining arguments
- CONST_INSN:
- const lr0,inf ; (replaced by half of target addr)
- consth lr0,inf ; (replaced by other half of target addr)
+ CONST_INSN:
+ const lr0,inf ; (replaced by half of target addr)
+ consth lr0,inf ; (replaced by other half of target addr)
calli lr0, lr0
aseq 0x40,gr1,gr1 ; nop
- BREAKPT_INSN:
- asneq 0x50,gr1,gr1 ; breakpoint (replaced by local breakpoint insn)
- */
+ BREAKPT_INSN:
+ asneq 0x50,gr1,gr1 ; breakpoint (replaced by local breakpoint insn)
+ */
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#define BS(const) const
@@ -635,7 +638,7 @@ extern void pop_frame ();
BS(0x72500101)}
#define CALL_DUMMY_LENGTH (8 * 4)
-#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
+#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
/* Helper macro for FIX_CALL_DUMMY. WORDP is a long * which points to a
word in target byte order; bits 0-7 and 16-23 of *WORDP are replaced with
@@ -650,9 +653,9 @@ extern void pop_frame ();
#else /* Target is little endian. */
#define STUFF_I16(WORDP, DATA) \
{
- *(char *)(WORDP) = ((DATA) & 0xff);
- *((char *)(WORDP) + 2) = (((DATA) >> 8) & 0xff);
- }
+*(char *) (WORDP) = ((DATA) & 0xff);
+*((char *) (WORDP) + 2) = (((DATA) >> 8) & 0xff);
+}
#endif /* Target is little endian. */
/* Insert the specified number of args and function address
@@ -696,7 +699,8 @@ extern void pop_frame ();
(num), SYMBOL_SOURCE_NAME (sym)), (num) \
: (num))
-extern enum a29k_processor_types {
+extern enum a29k_processor_types
+{
a29k_unknown,
/* Bit 0x400 of the CPS does *not* identify freeze mode, i.e. 29000,
@@ -705,7 +709,8 @@ extern enum a29k_processor_types {
/* Bit 0x400 of the CPS does identify freeze mode, i.e. 29050. */
a29k_freeze_mode
-} processor_type;
+}
+processor_type;
/* We need three arguments for a general frame specification for the
"frame" or "info frame" command. */
generated by cgit v1.1 at 2024-09-16 14:07:04 +0000