#define MASK_21 0x1fffff
/* This macro gets bit fields using HP's numbering (MSB = 0) */
-
+#ifndef GET_FIELD
#define GET_FIELD(X, FROM, TO) \
((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
+#endif
/* Watch out for NaNs */
#define REG_STRUCT_HAS_ADDR(gcc_p,type) \
(TYPE_LENGTH (type) > 8)
-extern use_struct_convention_fn hppa_use_struct_convention;
-#define USE_STRUCT_CONVENTION(gcc_p,type) hppa_use_struct_convention (gcc_p,type)
-
/* Offset from address of function to start of its code.
Zero on most machines. */
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
-#define SKIP_PROLOGUE(pc) pc = skip_prologue (pc)
-extern CORE_ADDR skip_prologue PARAMS ((CORE_ADDR));
+extern CORE_ADDR hppa_skip_prologue PARAMS ((CORE_ADDR));
+#define SKIP_PROLOGUE(pc) (hppa_skip_prologue (pc))
/* If PC is in some function-call trampoline code, return the PC
where the function itself actually starts. If not, return NULL. */
#define SKIP_TRAMPOLINE_CODE(pc) skip_trampoline_code (pc, NULL)
+extern CORE_ADDR skip_trampoline_code PARAMS ((CORE_ADDR, char *));
/* Return non-zero if we are in an appropriate trampoline. */
extern CORE_ADDR saved_pc_after_call PARAMS ((struct frame_info *));
/* Stack grows upward */
-
#define INNER_THAN(lhs,rhs) ((lhs) > (rhs))
+/* elz: adjust the quantity to the next highest value which is 64-bit aligned.
+ This is used in valops.c, when the sp is adjusted.
+ On hppa the sp must always be kept 64-bit aligned*/
+
+#define STACK_ALIGN(arg) ( ((arg)%8) ? (((arg)+7)&-8) : (arg))
+#define NO_EXTRA_ALIGNMENT_NEEDED 1
+
/* Sequence of bytes for breakpoint instruction. */
#define BREAKPOINT {0x00, 0x01, 0x00, 0x04}
+#define BREAKPOINT32 0x10004
/* Amount PC must be decremented by after a breakpoint.
This is often the number of bytes in BREAKPOINT
#define DECR_PC_AFTER_BREAK 0
+/* Sometimes we may pluck out a minimal symbol that has a negative
+ address.
+
+ An example of this occurs when an a.out is linked against a foo.sl.
+ The foo.sl defines a global bar(), and the a.out declares a signature
+ for bar(). However, the a.out doesn't directly call bar(), but passes
+ its address in another call.
+
+ If you have this scenario and attempt to "break bar" before running,
+ gdb will find a minimal symbol for bar() in the a.out. But that
+ symbol's address will be negative. What this appears to denote is
+ an index backwards from the base of the procedure linkage table (PLT)
+ into the data linkage table (DLT), the end of which is contiguous
+ with the start of the PLT. This is clearly not a valid address for
+ us to set a breakpoint on.
+
+ Note that one must be careful in how one checks for a negative address.
+ 0xc0000000 is a legitimate address of something in a shared text
+ segment, for example. Since I don't know what the possible range
+ is of these "really, truly negative" addresses that come from the
+ minimal symbols, I'm resorting to the gross hack of checking the
+ top byte of the address for all 1's. Sigh.
+ */
+#define PC_REQUIRES_RUN_BEFORE_USE(pc) \
+ (! target_has_stack && (pc & 0xFF000000))
+
+/* return instruction is bv r0(rp) or bv,n r0(rp)*/
+
+#define ABOUT_TO_RETURN(pc) ((read_memory_integer (pc, 4) | 0x2) == 0xE840C002)
+
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define NUM_REGS 128
/* Initializer for an array of names of registers.
- There should be NUM_REGS strings in this initializer. */
+ There should be NUM_REGS strings in this initializer.
+ They are in rows of eight entries */
#define REGISTER_NAMES \
- {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9", \
- "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", \
- "r20", "r21", "r22", "r23", "r24", "r25", "r26", "dp", "ret0", "ret1", \
- "sp", "r31", "sar", "pcoqh", "pcsqh", "pcoqt", "pcsqt", \
- "eiem", "iir", "isr", "ior", "ipsw", "goto", "sr4", "sr0", "sr1", "sr2", \
- "sr3", "sr5", "sr6", "sr7", "cr0", "cr8", "cr9", "ccr", "cr12", "cr13", \
- "cr24", "cr25", "cr26", "mpsfu_high", "mpsfu_low", "mpsfu_ovflo", "pad", \
- "fpsr", "fpe1", "fpe2", "fpe3", "fpe4", "fpe5", "fpe6", "fpe7", \
- "fr4", "fr4R", "fr5", "fr5R", "fr6", "fr6R", "fr7", "fr7R", \
- "fr8", "fr8R", "fr9", "fr9R", "fr10", "fr10R", "fr11", "fr11R", \
- "fr12", "fr12R", "fr13", "fr13R", "fr14", "fr14R", "fr15", "fr15R", \
- "fr16", "fr16R", "fr17", "fr17R", "fr18", "fr18R", "fr19", "fr19R", \
- "fr20", "fr20R", "fr21", "fr21R", "fr22", "fr22R", "fr23", "fr23R", \
- "fr24", "fr24R", "fr25", "fr25R", "fr26", "fr26R", "fr27", "fr27R", \
- "fr28", "fr28R", "fr29", "fr29R", "fr30", "fr30R", "fr31", "fr31R"}
+ {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", \
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
+ "r24", "r25", "r26", "dp", "ret0", "ret1", "sp", "r31", \
+ "sar", "pcoqh", "pcsqh", "pcoqt", "pcsqt", "eiem", "iir", "isr", \
+ "ior", "ipsw", "goto", "sr4", "sr0", "sr1", "sr2", "sr3", \
+ "sr5", "sr6", "sr7", "cr0", "cr8", "cr9", "ccr", "cr12", \
+ "cr13", "cr24", "cr25", "cr26", "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",\
+ "fpsr", "fpe1", "fpe2", "fpe3", "fpe4", "fpe5", "fpe6", "fpe7", \
+ "fr4", "fr4R", "fr5", "fr5R", "fr6", "fr6R", "fr7", "fr7R", \
+ "fr8", "fr8R", "fr9", "fr9R", "fr10", "fr10R", "fr11", "fr11R", \
+ "fr12", "fr12R", "fr13", "fr13R", "fr14", "fr14R", "fr15", "fr15R", \
+ "fr16", "fr16R", "fr17", "fr17R", "fr18", "fr18R", "fr19", "fr19R", \
+ "fr20", "fr20R", "fr21", "fr21R", "fr22", "fr22R", "fr23", "fr23R", \
+ "fr24", "fr24R", "fr25", "fr25R", "fr26", "fr26R", "fr27", "fr27R", \
+ "fr28", "fr28R", "fr29", "fr29R", "fr30", "fr30R", "fr31", "fr31R"}
/* Register numbers of various important registers.
Note that some of these values are "real" register numbers,
#define RCR_REGNUM 51 /* Recover Counter (also known as cr0) */
#define CCR_REGNUM 54 /* Coprocessor Configuration Register */
#define TR0_REGNUM 57 /* Temporary Registers (cr24 -> cr31) */
-#define FP0_REGNUM 64 /* floating point reg. 0 */
+#define CR27_REGNUM 60 /* Base register for thread-local storage, cr27 */
+#define FP0_REGNUM 64 /* floating point reg. 0 (fspr)*/
#define FP4_REGNUM 72
+#define ARG0_REGNUM 26 /* The first argument of a callee. */
+#define ARG1_REGNUM 25 /* The second argument of a callee. */
+#define ARG2_REGNUM 24 /* The third argument of a callee. */
+#define ARG3_REGNUM 23 /* The fourth argument of a callee. */
+
/* compatibility with the rest of gdb. */
#define PC_REGNUM PCOQ_HEAD_REGNUM
#define NPC_REGNUM PCOQ_TAIL_REGNUM
#define DO_REGISTERS_INFO(_regnum, fp) pa_do_registers_info (_regnum, fp)
extern void pa_do_registers_info PARAMS ((int, int));
+#if 0
+#define STRCAT_REGISTER(regnum, fpregs, stream, precision) pa_do_strcat_registers_info (regnum, fpregs, stream, precision)
+extern void pa_do_strcat_registers_info PARAMS ((int, int, GDB_FILE *, enum precision_type));
+#endif
+
/* PA specific macro to see if the current instruction is nullified. */
#ifndef INSTRUCTION_NULLIFIED
-#define INSTRUCTION_NULLIFIED ((int)read_register (IPSW_REGNUM) & 0x00200000)
+#define INSTRUCTION_NULLIFIED \
+ (((int)read_register (IPSW_REGNUM) & 0x00200000) && \
+ !((int)read_register (FLAGS_REGNUM) & 0x2))
#endif
/* Number of bytes of storage in the actual machine representation
a function return value of type TYPE, and copy that, in virtual format,
into VALBUF.
+ elz: changed what to return when length is > 4: the stored result is
+ in register 28 and in register 29, with the lower order word being in reg 29,
+ so we must start reading it from somehere in the middle of reg28
+
FIXME: Not sure what to do for soft float here. */
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
else \
memcpy ((VALBUF), \
(char *)(REGBUF) + REGISTER_BYTE (28) + \
- ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
+ (TYPE_LENGTH (TYPE) > 4 ? (8 - TYPE_LENGTH (TYPE)) : (4 - TYPE_LENGTH (TYPE))), \
TYPE_LENGTH (TYPE)); \
}
+
+ /* elz: decide whether the function returning a value of type type
+ will put it on the stack or in the registers.
+ The pa calling convention says that:
+ register 28 (called ret0 by gdb) contains any ASCII char,
+ and any non_floating point value up to 32-bits.
+ reg 28 and 29 contain non-floating point up tp 64 bits and larger
+ than 32 bits. (higer order word in reg 28).
+ fr4: floating point up to 64 bits
+ sr1: space identifier (32-bit)
+ stack: any lager than 64-bit, with the address in r28
+ */
+extern use_struct_convention_fn hppa_use_struct_convention;
+#define USE_STRUCT_CONVENTION(gcc_p,type) hppa_use_struct_convention (gcc_p,type)
+
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format.
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
(*(int *)((REGBUF) + REGISTER_BYTE (28)))
+/* elz: Return a large value, which is stored on the stack at addr.
+ This is defined only for the hppa, at this moment.
+ The above macro EXTRACT_STRUCT_VALUE_ADDRESS is not called anymore,
+ because it assumes that on exit from a called function which returns
+ a large structure on the stack, the address of the ret structure is
+ still in register 28. Unfortunately this register is usually overwritten
+ by the called function itself, on hppa. This is specified in the calling
+ convention doc. As far as I know, the only way to get the return value
+ is to have the caller tell us where it told the callee to put it, rather
+ than have the callee tell us.
+*/
+#define VALUE_RETURNED_FROM_STACK(valtype,addr) \
+ hppa_value_returned_from_stack (valtype, addr)
+
/*
* This macro defines the register numbers (from REGISTER_NAMES) that
* are effectively unavailable to the user through ptrace(). It allows
#define FRAME_CHAIN(thisframe) frame_chain (thisframe)
extern CORE_ADDR frame_chain PARAMS ((struct frame_info *));
-#define FRAME_CHAIN_VALID(chain, thisframe) \
- frame_chain_valid (chain, thisframe)
-extern int frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
+extern int hppa_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
+#define FRAME_CHAIN_VALID(chain, thisframe) hppa_frame_chain_valid (chain, thisframe)
#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
/* Push an empty stack frame, to record the current PC, etc. */
-#define PUSH_DUMMY_FRAME push_dummy_frame (&inf_status)
+#define PUSH_DUMMY_FRAME push_dummy_frame (inf_status)
extern void push_dummy_frame PARAMS ((struct inferior_status *));
/* Discard from the stack the innermost frame,
#define CALL_DUMMY_START_OFFSET 0
+/* 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 CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
+ (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.
hppa_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR, int,
struct value **, struct type *, int));
-/* Stack must be aligned on 32-bit boundaries when synthesizing
- function calls. We still need STACK_ALIGN, PUSH_ARGUMENTS does
- not do all the work. */
-
-#define STACK_ALIGN(ADDR) (((ADDR) + 7) & -8)
-
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
sp = hppa_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
extern CORE_ADDR
unsigned int region_start;
unsigned int region_end;
- unsigned int Cannot_unwind : 1;
- unsigned int Millicode : 1;
- unsigned int Millicode_save_sr0 : 1;
- unsigned int Region_description : 2;
- unsigned int reserved1 : 1;
- unsigned int Entry_SR : 1;
- unsigned int Entry_FR : 4; /* number saved */
- unsigned int Entry_GR : 5; /* number saved */
- unsigned int Args_stored : 1;
- unsigned int Variable_Frame : 1;
- unsigned int Separate_Package_Body : 1;
- unsigned int Frame_Extension_Millicode:1;
- unsigned int Stack_Overflow_Check : 1;
- unsigned int Two_Instruction_SP_Increment:1;
- unsigned int Ada_Region : 1;
-/* Use this field to store a stub unwind type. */
-#define stub_type reserved2
- unsigned int reserved2 : 4;
- unsigned int Save_SP : 1;
- unsigned int Save_RP : 1;
- unsigned int Save_MRP_in_frame : 1;
- unsigned int extn_ptr_defined : 1;
- unsigned int Cleanup_defined : 1;
-
- unsigned int MPE_XL_interrupt_marker: 1;
- unsigned int HP_UX_interrupt_marker: 1;
- unsigned int Large_frame : 1;
- unsigned int reserved4 : 2;
- unsigned int Total_frame_size : 27;
+ unsigned int Cannot_unwind : 1; /* 0 */
+ unsigned int Millicode : 1; /* 1 */
+ unsigned int Millicode_save_sr0 : 1; /* 2 */
+ unsigned int Region_description : 2; /* 3..4 */
+ unsigned int reserved1 : 1; /* 5 */
+ unsigned int Entry_SR : 1; /* 6 */
+ unsigned int Entry_FR : 4; /* number saved */ /* 7..10 */
+ unsigned int Entry_GR : 5; /* number saved */ /* 11..15 */
+ unsigned int Args_stored : 1; /* 16 */
+ unsigned int Variable_Frame : 1; /* 17 */
+ unsigned int Separate_Package_Body : 1; /* 18 */
+ unsigned int Frame_Extension_Millicode:1; /* 19 */
+ unsigned int Stack_Overflow_Check : 1; /* 20 */
+ unsigned int Two_Instruction_SP_Increment:1; /* 21 */
+ unsigned int Ada_Region : 1; /* 22 */
+ unsigned int cxx_info : 1; /* 23 */
+ unsigned int cxx_try_catch : 1; /* 24 */
+ unsigned int sched_entry_seq : 1; /* 25 */
+ unsigned int reserved2 : 1; /* 26 */
+ unsigned int Save_SP : 1; /* 27 */
+ unsigned int Save_RP : 1; /* 28 */
+ unsigned int Save_MRP_in_frame : 1; /* 29 */
+ unsigned int extn_ptr_defined : 1; /* 30 */
+ unsigned int Cleanup_defined : 1; /* 31 */
+
+ unsigned int MPE_XL_interrupt_marker: 1; /* 0 */
+ unsigned int HP_UX_interrupt_marker: 1; /* 1 */
+ unsigned int Large_frame : 1; /* 2 */
+ unsigned int Pseudo_SP_Set : 1; /* 3 */
+ unsigned int reserved4 : 1; /* 4 */
+ unsigned int Total_frame_size : 27; /* 5..31 */
+
+ /* This is *NOT* part of an actual unwind_descriptor in an object
+ file. It is *ONLY* part of the "internalized" descriptors that
+ we create from those in a file.
+ */
+ struct {
+ unsigned int stub_type : 4; /* 0..3 */
+ unsigned int padding : 28; /* 4..31 */
+ } stub_unwind;
};
/* HP linkers also generate unwinds for various linker-generated stubs.
IMPORT = 11,
};
-
-/* Info about the unwind table associated with an object file. This is hung
- off of the objfile->obj_private pointer, and is allocated in the objfile's
- psymbol obstack. This allows us to have unique unwind info for each
- executable and shared library that we are debugging. */
-
+/* We use the objfile->obj_private pointer for two things:
+ *
+ * 1. An unwind table;
+ *
+ * 2. A pointer to any associated shared library object.
+ *
+ * #defines are used to help refer to these objects.
+ */
+
+/* Info about the unwind table associated with an object file.
+ *
+ * This is hung off of the "objfile->obj_private" pointer, and
+ * is allocated in the objfile's psymbol obstack. This allows
+ * us to have unique unwind info for each executable and shared
+ * library that we are debugging.
+ */
struct obj_unwind_info {
struct unwind_table_entry *table; /* Pointer to unwind info */
struct unwind_table_entry *cache; /* Pointer to last entry we found */
- int last; /* Index of last entry */
+ int last; /* Index of last entry */
};
-#define OBJ_UNWIND_INFO(obj) ((struct obj_unwind_info *)obj->obj_private)
+typedef struct obj_private_struct {
+ struct obj_unwind_info *unwind_info; /* a pointer */
+ struct so_list *so_info; /* a pointer */
+} obj_private_data_t;
+#if 0
+extern void target_write_pc PARAMS ((CORE_ADDR, int))
extern CORE_ADDR target_read_pc PARAMS ((int));
-extern void target_write_pc PARAMS ((CORE_ADDR, int));
extern CORE_ADDR skip_trampoline_code PARAMS ((CORE_ADDR, char *));
+#endif
#define TARGET_READ_PC(pid) target_read_pc (pid)
+extern CORE_ADDR target_read_pc PARAMS ((int));
+
#define TARGET_WRITE_PC(v,pid) target_write_pc (v,pid)
+extern void target_write_pc PARAMS ((CORE_ADDR, int));
+
+#define TARGET_READ_FP() target_read_fp (inferior_pid)
+extern CORE_ADDR target_read_fp PARAMS ((int));
/* For a number of horrible reasons we may have to adjust the location
of variables on the stack. Ugh. */
projects / deliverable / binutils-gdb.git / blobdiff