* hppa-tdep.c (hppa_fix_call_dummy): Use value_ptr.
(hppa_push_arguments): Likewise.
+Mon Mar 21 11:02:51 1994 Stu Grossman (grossman at cygnus.com)
+
+ * alpha-tdep.c: Gobs of changes (many imported from mips-tdep) to
+ improve remote debugging efficiency. Also fixed problems with
+ doing function calls for programs with no entry points.
+ * infcmd.c (run_stack_dummy): Use CALL_DUMMY_ADDRESS instead of
+ entry_point_address.
+ * inferior.h (PC_IN_CALL_DUMMY): ditto.
+ * mdebugread.c (parse_symbol, parse_procedure, parse_external,
+ parse_lines): Pass section_offsets info to these routines so that
+ we can relocate symbol table entries upon readin.
+ * (psymtab_to_symtab_1): Set symtab->primary to tell
+ objfile_relocate to do relocations for our symbols.
+ * (ecoff_relocate_efi): New routine to relocate adr field of PDRs
+ (which hang off of the symbol table).
+ * Use prim_record_minimal_symbols_and_info instead of
+ prim_record_minimal_symbols to supply section info to make minimal
+ symbol relocations work.
+ * minsyms.c (prim_record_minimal_symbols_and_info): If section is
+ -1, try to deduce it from ms_type.
+ * objfiles.c (objfile_relocate): Use ALL_OBJFILE_SYMTABS where
+ appropriate. Handle relocation of MIPS_EFI symbols special. Also,
+ add code to relocate objfile->sections data structure.
+ * remote.c (get_offsets): Use new protocol message to acquire
+ section offsets from the target.
+ * (remote_wait): Get rid of relocation stuff. That's all handled
+ by objfile_relocate now.
+ * config/alpha/alpha-nw.mt (TM_FILE): Use tm-alphanw.h.
+ * config/alpha/tm-alpha.h: Define CALL_DUMMY_ADDRESS, and
+ VM_MIN_ADDRESS.
+ * config/alpha/tm-alphanw.h: DECR_PC_AFTER_BREAK=0, VM_MIN_ADDRESS=0.
+
Sun Mar 20 15:21:57 1994 Doug Evans (dje@cygnus.com)
* sparc-tdep.c (sparc_frame_find_save_regs): Use REGISTER_RAW_SIZE
#include "gdbcmd.h"
#include "gdbcore.h"
#include "dis-asm.h"
+#include "symfile.h"
+#include "objfiles.h"
/* FIXME: Some of this code should perhaps be merged with mips-tdep.c. */
-#define VM_MIN_ADDRESS (CORE_ADDR)0x120000000
+/* FIXME: Put this declaration in frame.h. */
+extern struct obstack frame_cache_obstack;
\f
/* Forward declarations. */
static void
reinit_frame_cache_sfunc PARAMS ((char *, int, struct cmd_list_element *));
+static CORE_ADDR after_prologue PARAMS ((CORE_ADDR pc,
+ alpha_extra_func_info_t proc_desc));
+
+static int in_prologue PARAMS ((CORE_ADDR pc,
+ alpha_extra_func_info_t proc_desc));
+
/* Heuristic_proc_start may hunt through the text section for a long
time across a 2400 baud serial line. Allows the user to limit this
search. */
} *linked_proc_desc_table = NULL;
\f
-#define READ_FRAME_REG(fi, regno) read_next_frame_reg((fi)->next, regno)
+/* Guaranteed to set fci->saved_regs to some values (it never leaves it
+ NULL). */
+
+void
+alpha_find_saved_regs (fci)
+ FRAME fci;
+{
+ int ireg;
+ CORE_ADDR reg_position;
+ unsigned long mask;
+ alpha_extra_func_info_t proc_desc;
+ int returnreg;
+
+ fci->saved_regs = (struct frame_saved_regs *)
+ obstack_alloc (&frame_cache_obstack, sizeof(struct frame_saved_regs));
+ memset (fci->saved_regs, 0, sizeof (struct frame_saved_regs));
+
+ proc_desc = fci->proc_desc;
+ if (proc_desc == NULL)
+ /* I'm not sure how/whether this can happen. Normally when we can't
+ find a proc_desc, we "synthesize" one using heuristic_proc_desc
+ and set the saved_regs right away. */
+ return;
+
+ /* Fill in the offsets for the registers which gen_mask says
+ were saved. */
+
+ reg_position = fci->frame + PROC_REG_OFFSET (proc_desc);
+ mask = PROC_REG_MASK (proc_desc);
+
+ returnreg = PROC_PC_REG (proc_desc);
+
+ /* Note that RA is always saved first, regardless of it's actual
+ register number. */
+ if (mask & (1 << returnreg))
+ {
+ fci->saved_regs->regs[returnreg] = reg_position;
+ reg_position += 8;
+ mask &= ~(1 << returnreg); /* Clear bit for RA so we
+ don't save again later. */
+ }
+
+ for (ireg = 0; ireg <= 31 ; ++ireg)
+ if (mask & (1 << ireg))
+ {
+ fci->saved_regs->regs[ireg] = reg_position;
+ reg_position += 8;
+ }
+
+ /* Fill in the offsets for the registers which float_mask says
+ were saved. */
+
+ reg_position = fci->frame + PROC_FREG_OFFSET (proc_desc);
+ mask = PROC_FREG_MASK (proc_desc);
+
+ for (ireg = 0; ireg <= 31 ; ++ireg)
+ if (mask & (1 << ireg))
+ {
+ fci->saved_regs->regs[FP0_REGNUM+ireg] = reg_position;
+ reg_position += 8;
+ }
+
+ fci->saved_regs->regs[PC_REGNUM] = fci->saved_regs->regs[returnreg];
+}
static CORE_ADDR
read_next_frame_reg(fi, regno)
}
else if (regno == SP_REGNUM)
return fi->frame;
- else if (fi->saved_regs->regs[regno])
- return read_memory_integer(fi->saved_regs->regs[regno], 8);
+ else
+ {
+ if (fi->saved_regs == NULL)
+ alpha_find_saved_regs (fi);
+ if (fi->saved_regs->regs[regno])
+ return read_memory_integer(fi->saved_regs->regs[regno], 8);
+ }
}
return read_register(regno);
}
PROC_FRAME_OFFSET(&temp_proc_desc) = frame_size;
PROC_REG_MASK(&temp_proc_desc) = reg_mask;
PROC_PC_REG(&temp_proc_desc) = RA_REGNUM;
+ PROC_LOCALOFF(&temp_proc_desc) = 0; /* XXX - bogus */
return &temp_proc_desc;
}
+/* This returns the PC of the first inst after the prologue. If we can't
+ find the prologue, then return 0. */
+
+static CORE_ADDR
+after_prologue (pc, proc_desc)
+ CORE_ADDR pc;
+ alpha_extra_func_info_t proc_desc;
+{
+ struct block *b;
+ struct symtab_and_line sal;
+ CORE_ADDR func_addr, func_end;
+
+ if (!proc_desc)
+ proc_desc = find_proc_desc (pc, NULL);
+
+ if (proc_desc)
+ {
+ /* If function is frameless, then we need to do it the hard way. I
+ strongly suspect that frameless always means prologueless... */
+ if (PROC_FRAME_REG (proc_desc) == SP_REGNUM
+ && PROC_FRAME_OFFSET (proc_desc) == 0)
+ return 0;
+ }
+
+ if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end))
+ return 0; /* Unknown */
+
+ sal = find_pc_line (func_addr, 0);
+
+ if (sal.end < func_end)
+ return sal.end;
+
+ /* The line after the prologue is after the end of the function. In this
+ case, tell the caller to find the prologue the hard way. */
+
+ return 0;
+}
+
+/* Return non-zero if we *might* be in a function prologue. Return zero if we
+ are definatly *not* in a function prologue. */
+
+static int
+in_prologue (pc, proc_desc)
+ CORE_ADDR pc;
+ alpha_extra_func_info_t proc_desc;
+{
+ CORE_ADDR after_prologue_pc;
+
+ after_prologue_pc = after_prologue (pc, proc_desc);
+
+ if (after_prologue_pc == 0
+ || pc < after_prologue_pc)
+ return 1;
+ else
+ return 0;
+}
+
static alpha_extra_func_info_t
find_proc_desc(pc, next_frame)
CORE_ADDR pc;
as it will be contained in the proc_desc we are searching for.
So we have to find the proc_desc whose frame is closest to the current
stack pointer. */
+
if (PC_IN_CALL_DUMMY (pc, 0, 0))
{
struct linked_proc_info *link;
}
b = block_for_pc(pc);
+
find_pc_partial_function (pc, NULL, &startaddr, NULL);
if (b == NULL)
sym = NULL;
if (sym)
{
- /* IF (this is the topmost frame OR a frame interrupted by a signal)
- * AND (this proc does not have debugging information OR
+ /* IF this is the topmost frame AND
+ * (this proc does not have debugging information OR
* the PC is in the procedure prologue)
* THEN create a "heuristic" proc_desc (by analyzing
* the actual code) to replace the "official" proc_desc.
*/
proc_desc = (alpha_extra_func_info_t)SYMBOL_VALUE(sym);
- if (next_frame == NULL || next_frame->signal_handler_caller) {
- struct symtab_and_line val;
- struct symbol *proc_symbol =
- PROC_DESC_IS_DUMMY(proc_desc) ? 0 : PROC_SYMBOL(proc_desc);
-
- if (proc_symbol) {
- val = find_pc_line (BLOCK_START
- (SYMBOL_BLOCK_VALUE(proc_symbol)),
- 0);
- val.pc = val.end ? val.end : pc;
- }
- if (!proc_symbol || pc < val.pc) {
+ if (next_frame == NULL)
+ {
+ if (PROC_DESC_IS_DUMMY (proc_desc) || in_prologue (pc, proc_desc))
+ {
alpha_extra_func_info_t found_heuristic =
- heuristic_proc_desc(PROC_LOW_ADDR(proc_desc),
- pc, next_frame);
+ heuristic_proc_desc (PROC_LOW_ADDR (proc_desc),
+ pc, next_frame);
+ PROC_LOCALOFF (found_heuristic) = PROC_LOCALOFF (proc_desc);
if (found_heuristic)
- {
- /* The call to heuristic_proc_desc determines
- which registers have been saved so far and if the
- frame is already set up.
- The heuristic algorithm doesn't work well for other
- information in the procedure descriptor, so copy
- it from the found procedure descriptor. */
- PROC_LOCALOFF(found_heuristic) = PROC_LOCALOFF(proc_desc);
- PROC_PC_REG(found_heuristic) = PROC_PC_REG(proc_desc);
- proc_desc = found_heuristic;
- }
- }
- }
+ proc_desc = found_heuristic;
+ }
+ }
}
else
{
+ /* Is linked_proc_desc_table really necessary? It only seems to be used
+ by procedure call dummys. However, the procedures being called ought
+ to have their own proc_descs, and even if they don't,
+ heuristic_proc_desc knows how to create them! */
+
+ register struct linked_proc_info *link;
+ for (link = linked_proc_desc_table; link; link = link->next)
+ if (PROC_LOW_ADDR(&link->info) <= pc
+ && PROC_HIGH_ADDR(&link->info) > pc)
+ return &link->info;
+
if (startaddr == 0)
startaddr = heuristic_proc_start (pc);
init_extra_frame_info(fci)
struct frame_info *fci;
{
- extern struct obstack frame_cache_obstack;
/* Use proc_desc calculated in frame_chain */
alpha_extra_func_info_t proc_desc =
fci->next ? cached_proc_desc : find_proc_desc(fci->pc, fci->next);
- fci->saved_regs = (struct frame_saved_regs*)
- obstack_alloc (&frame_cache_obstack, sizeof(struct frame_saved_regs));
- memset (fci->saved_regs, 0, sizeof (struct frame_saved_regs));
+ fci->saved_regs = NULL;
fci->proc_desc =
proc_desc == &temp_proc_desc ? 0 : proc_desc;
if (proc_desc)
{
- int ireg;
- CORE_ADDR reg_position;
- unsigned long mask;
- int returnreg;
-
/* Get the locals offset from the procedure descriptor, it is valid
even if we are in the middle of the prologue. */
fci->localoff = PROC_LOCALOFF(proc_desc);
/* Fixup frame-pointer - only needed for top frame */
+
/* Fetch the frame pointer for a dummy frame from the procedure
descriptor. */
if (PROC_DESC_IS_DUMMY(proc_desc))
fci->frame = (FRAME_ADDR) PROC_DUMMY_FRAME(proc_desc);
+
/* This may not be quite right, if proc has a real frame register.
Get the value of the frame relative sp, procedure might have been
interrupted by a signal at it's very start. */
- else if (fci->pc == PROC_LOW_ADDR(proc_desc))
- fci->frame = READ_FRAME_REG(fci, SP_REGNUM);
+ else if (fci->pc == PROC_LOW_ADDR (proc_desc) && !PROC_DESC_IS_DUMMY (proc_desc))
+ fci->frame = read_next_frame_reg (fci->next, SP_REGNUM);
else
- fci->frame = READ_FRAME_REG(fci, PROC_FRAME_REG(proc_desc))
- + PROC_FRAME_OFFSET(proc_desc);
-
- /* If this is the innermost frame, and we are still in the
- prologue (loosely defined), then the registers may not have
- been saved yet. */
- if (fci->next == NULL
- && !PROC_DESC_IS_DUMMY(proc_desc)
- && alpha_in_lenient_prologue (PROC_LOW_ADDR (proc_desc), fci->pc))
- {
- /* Can't just say that the registers are not saved, because they
- might get clobbered halfway through the prologue.
- heuristic_proc_desc already has the right code to figure out
- exactly what has been saved, so use it. As far as I know we
- could be doing this (as we do on the 68k, for example)
- regardless of whether we are in the prologue; I'm leaving in
- the check for being in the prologue only out of conservatism
- (I'm not sure whether heuristic_proc_desc handles all cases,
- for example).
-
- This stuff is ugly (and getting uglier by the minute). Probably
- the best way to clean it up is to ignore the proc_desc's from
- the symbols altogher, and get all the information we need by
- examining the prologue (provided we can make the prologue
- examining code good enough to get all the cases...). */
- proc_desc =
- heuristic_proc_desc (PROC_LOW_ADDR (proc_desc),
- fci->pc,
- fci->next);
- }
+ fci->frame = read_next_frame_reg (fci->next, PROC_FRAME_REG (proc_desc))
+ + PROC_FRAME_OFFSET (proc_desc);
if (proc_desc == &temp_proc_desc)
- *fci->saved_regs = temp_saved_regs;
- else
{
- /* Find which general-purpose registers were saved.
- The return address register is the first saved register,
- the other registers follow in ascending order. */
- reg_position = fci->frame + PROC_REG_OFFSET(proc_desc);
- mask = PROC_REG_MASK(proc_desc) & 0xffffffffL;
- returnreg = PROC_PC_REG(proc_desc);
- if (mask & (1 << returnreg))
- {
- fci->saved_regs->regs[returnreg] = reg_position;
- reg_position += 8;
- }
- for (ireg = 0; mask; ireg++, mask >>= 1)
- if (mask & 1)
- {
- if (ireg == returnreg)
- continue;
- fci->saved_regs->regs[ireg] = reg_position;
- reg_position += 8;
- }
- /* find which floating-point registers were saved */
- reg_position = fci->frame + PROC_FREG_OFFSET(proc_desc);
- mask = PROC_FREG_MASK(proc_desc) & 0xffffffffL;
- for (ireg = 0; mask; ireg++, mask >>= 1)
- if (mask & 1)
- {
- fci->saved_regs->regs[FP0_REGNUM+ireg] = reg_position;
- reg_position += 8;
- }
+ fci->saved_regs = (struct frame_saved_regs*)
+ obstack_alloc (&frame_cache_obstack,
+ sizeof (struct frame_saved_regs));
+ *fci->saved_regs = temp_saved_regs;
+ fci->saved_regs->regs[PC_REGNUM] = fci->saved_regs->regs[RA_REGNUM];
}
-
- fci->saved_regs->regs[PC_REGNUM] = fci->saved_regs->regs[PROC_PC_REG(proc_desc)];
}
}
alpha_push_dummy_frame()
{
int ireg;
- struct linked_proc_info *link = (struct linked_proc_info*)
- xmalloc(sizeof (struct linked_proc_info));
- alpha_extra_func_info_t proc_desc = &link->info;
+ struct linked_proc_info *link;
+ alpha_extra_func_info_t proc_desc;
CORE_ADDR sp = read_register (SP_REGNUM);
CORE_ADDR save_address;
char raw_buffer[MAX_REGISTER_RAW_SIZE];
unsigned long mask;
+ link = (struct linked_proc_info *) xmalloc(sizeof (struct linked_proc_info));
link->next = linked_proc_desc_table;
linked_proc_desc_table = link;
+
+ proc_desc = &link->info;
/*
* The registers we must save are all those not preserved across
sp += PROC_REG_OFFSET(proc_desc);
write_register (SP_REGNUM, sp);
- PROC_LOW_ADDR(proc_desc) = entry_point_address ();
+ PROC_LOW_ADDR(proc_desc) = CALL_DUMMY_ADDRESS ();
PROC_HIGH_ADDR(proc_desc) = PROC_LOW_ADDR(proc_desc) + 4;
SET_PROC_DESC_IS_DUMMY(proc_desc);
alpha_extra_func_info_t proc_desc = frame->proc_desc;
write_register (PC_REGNUM, FRAME_SAVED_PC(frame));
+ if (frame->saved_regs == NULL)
+ alpha_find_saved_regs (frame);
if (proc_desc)
{
for (regnum = 32; --regnum >= 0; )
{
unsigned long inst;
int offset;
+ CORE_ADDR post_prologue_pc;
+
+ /* See if we can determine the end of the prologue via the symbol table.
+ If so, then return either PC, or the PC after the prologue, whichever
+ is greater. */
+
+ post_prologue_pc = after_prologue (pc, NULL);
+
+ if (post_prologue_pc != 0)
+ return max (pc, post_prologue_pc);
+
+ /* Can't determine prologue from the symbol table, need to examine
+ instructions. */
/* Skip the typical prologue instructions. These are the stack adjustment
instruction and the instructions that save registers on the stack
reinit_frame_cache ();
}
+/* This is the definition of CALL_DUMMY_ADDRESS. It's a heuristic that is used
+ to find a convenient place in the text segment to stick a breakpoint to
+ detect the completion of a target function call (ala call_function_by_hand).
+ */
+
+CORE_ADDR
+alpha_call_dummy_address ()
+{
+ CORE_ADDR entry;
+ struct minimal_symbol *sym;
+
+ entry = entry_point_address ();
+
+ if (entry != 0)
+ return entry;
+
+ sym = lookup_minimal_symbol ("_Prelude", symfile_objfile);
+
+ if (!sym || MSYMBOL_TYPE (sym) != mst_text)
+ return 0;
+ else
+ return SYMBOL_VALUE_ADDRESS (sym) + 4;
+}
+
void
_initialize_alpha_tdep ()
{
new_bvect PARAMS ((int));
static int
-parse_symbol PARAMS ((SYMR *, union aux_ext *, char *, int));
+parse_symbol PARAMS ((SYMR *, union aux_ext *, char *, int, struct section_offsets *));
static struct type *
parse_type PARAMS ((int, union aux_ext *, unsigned int, int *, int, char *));
SYMR's handled (normally one). */
static int
-parse_symbol (sh, ax, ext_sh, bigend)
+parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
SYMR *sh;
union aux_ext *ax;
char *ext_sh;
int bigend;
+ struct section_offsets *section_offsets;
{
const bfd_size_type external_sym_size = debug_swap->external_sym_size;
void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) =
else
name = debug_info->ss + cur_fdr->issBase + sh->iss;
+ switch (sh->sc)
+ {
+ case scText:
+ sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ break;
+ case scData:
+ sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA);
+ break;
+ case scBss:
+ sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS);
+ break;
+ }
+
switch (sh->st)
{
case stNil:
to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
in question, or NULL to use top_stack->cur_block. */
-static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long));
+static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long,
+ struct section_offsets *));
static void
-parse_procedure (pr, search_symtab, first_off)
+parse_procedure (pr, search_symtab, first_off, section_offsets)
PDR *pr;
struct symtab *search_symtab;
unsigned long first_off;
+ struct section_offsets *section_offsets;
{
struct symbol *s, *i;
struct block *b;
e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
e->pdr = *pr;
e->pdr.isym = (long) s;
- e->pdr.adr += cur_fdr->adr - first_off;
+ e->pdr.adr += cur_fdr->adr - first_off
+ + ANOFFSET (section_offsets, SECT_OFF_TEXT);
/* Correct incorrect setjmp procedure descriptor from the library
to make backtrace through setjmp work. */
}
}
+/* Relocate the extra function info pointed to by the symbol table. */
+
+void
+ecoff_relocate_efi (sym, delta)
+ struct symbol *sym;
+ CORE_ADDR delta;
+{
+ struct mips_extra_func_info *e;
+
+ e = (struct mips_extra_func_info *) SYMBOL_VALUE (sym);
+
+ e->pdr.adr += delta;
+}
+
/* Parse the external symbol ES. Just call parse_symbol() after
making sure we know where the aux are for it. For procedures,
parsing of the PDRs has already provided all the needed
This routine clobbers top_stack->cur_block and ->cur_st. */
static void
-parse_external (es, skip_procedures, bigend)
+parse_external (es, skip_procedures, bigend, section_offsets)
EXTR *es;
int skip_procedures;
int bigend;
+ struct section_offsets *section_offsets;
{
union aux_ext *ax;
case stLabel:
/* Note that the case of a symbol with indexNil must be handled
anyways by parse_symbol(). */
- parse_symbol (&es->asym, ax, (char *) NULL, bigend);
+ parse_symbol (&es->asym, ax, (char *) NULL, bigend, section_offsets);
break;
default:
break;
with that and do not need to reorder our linetables */
static void
-parse_lines (fh, pr, lt, maxlines)
+parse_lines (fh, pr, lt, maxlines, section_offsets)
FDR *fh;
PDR *pr;
struct linetable *lt;
int maxlines;
+ struct section_offsets *section_offsets;
{
unsigned char *base;
int j, k;
if (fh->cbLine == 0)
return;
- base = debug_info->line + fh->cbLineOffset;
-
/* Scan by procedure descriptors */
k = 0;
for (j = 0; j < fh->cpd; j++, pr++)
halt = base + fh->cbLine;
base += pr->cbLineOffset;
- adr = fh->adr + pr->adr - first_off;
+ adr = fh->adr + pr->adr - first_off
+ + ANOFFSET (section_offsets, SECT_OFF_TEXT);
+
l = adr >> 2; /* in words */
for (lineno = pr->lnLow; base < halt; )
{
{
if (sh.st == stProc || sh.st == stStaticProc)
{
- long procaddr = sh.value;
+ long procaddr;
long isym;
-
+
+ sh.value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ procaddr = sh.value;
isym = AUX_GET_ISYM (fh->fBigendian,
(debug_info->external_aux
int new_sdx;
case stStaticProc:
- prim_record_minimal_symbol (name, sh.value, mst_file_text,
- objfile);
+ prim_record_minimal_symbol_and_info (name, sh.value,
+ mst_file_text, NULL,
+ SECT_OFF_TEXT, objfile);
/* FALLTHROUGH */
|| sh.sc == scRData
|| sh.sc == scPData
|| sh.sc == scXData)
- prim_record_minimal_symbol (name, sh.value, mst_file_data,
- objfile);
+ prim_record_minimal_symbol_and_info (name, sh.value,
+ mst_file_data, NULL,
+ SECT_OFF_DATA,
+ objfile);
else
- prim_record_minimal_symbol (name, sh.value, mst_file_bss,
- objfile);
+ prim_record_minimal_symbol_and_info (name, sh.value,
+ mst_file_bss, NULL,
+ SECT_OFF_BSS,
+ objfile);
class = LOC_STATIC;
break;
first_off = pr.adr;
first_pdr = 0;
}
- parse_procedure (&pr, st, first_off);
+ parse_procedure (&pr, st, first_off, pst->section_offsets);
}
}
else
(*swap_sym_in) (cur_bfd, sym_ptr, &sh);
c = parse_symbol (&sh,
debug_info->external_aux + fh->iauxBase,
- sym_ptr, fh->fBigendian);
+ sym_ptr, fh->fBigendian, pst->section_offsets);
sym_ptr += c * external_sym_size;
}
pdr_ptr += external_pdr_size, pdr_in++)
(*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
- parse_lines (fh, pr_block, lines, maxlines);
+ parse_lines (fh, pr_block, lines, maxlines,
+ pst->section_offsets);
if (lines->nitems < fh->cline)
lines = shrink_linetable (lines);
pdr_in = pr_block;
pdr_in_end = pdr_in + fh->cpd;
for (; pdr_in < pdr_in_end; pdr_in++)
- parse_procedure (pdr_in, 0, pr_block->adr);
+ parse_procedure (pdr_in, 0, pr_block->adr,
+ pst->section_offsets);
do_cleanups (old_chain);
}
ext_ptr = PST_PRIVATE (pst)->extern_tab;
for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++)
- parse_external (ext_ptr, 1, fh->fBigendian);
+ parse_external (ext_ptr, 1, fh->fBigendian, pst->section_offsets);
/* If there are undefined symbols, tell the user.
The alpha has an undefined symbol for every symbol that is
}
pop_parse_stack ();
+ st->primary = 1;
+
/* Sort the symbol table now, we are done adding symbols to it.*/
sort_symtab_syms (st);
#include "symfile.h"
#include "objfiles.h"
#include "demangle.h"
+#include "gdb-stabs.h"
/* Accumulate the minimal symbols for each objfile in bunches of BUNCH_SIZE.
At the end, copy them all into one newly allocated location on an objfile's
SYMBOL_NAME (msymbol) = (char *) name;
SYMBOL_INIT_LANGUAGE_SPECIFIC (msymbol, language_unknown);
SYMBOL_VALUE_ADDRESS (msymbol) = address;
- SYMBOL_SECTION (msymbol) = section;
+ if (section == -1)
+ switch (ms_type)
+ {
+ case mst_text:
+ case mst_file_text:
+ SYMBOL_SECTION (msymbol) = SECT_OFF_TEXT;
+ break;
+ case mst_data:
+ case mst_file_data:
+ SYMBOL_SECTION (msymbol) = SECT_OFF_DATA;
+ break;
+ case mst_bss:
+ case mst_file_bss:
+ SYMBOL_SECTION (msymbol) = SECT_OFF_BSS;
+ break;
+ default:
+ SYMBOL_SECTION (msymbol) = -1;
+ }
+ else
+ SYMBOL_SECTION (msymbol) = section;
+
MSYMBOL_TYPE (msymbol) = ms_type;
/* FIXME: This info, if it remains, needs its own field. */
MSYMBOL_INFO (msymbol) = info; /* FIXME! */
{
struct symtab *s;
- for (s = objfile->symtabs; s; s = s->next)
+ ALL_OBJFILE_SYMTABS (objfile, s)
{
struct linetable *l;
struct blockvector *bv;
SYMBOL_VALUE_ADDRESS (sym) +=
ANOFFSET (delta, SYMBOL_SECTION (sym));
}
+#ifdef MIPS_EFI_SYMBOL_NAME
+ /* Relocate Extra Function Info for ecoff. */
+
+ else
+ if (SYMBOL_CLASS (sym) == LOC_CONST
+ && SYMBOL_NAMESPACE (sym) == LABEL_NAMESPACE
+ && STRCMP (SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
+ ecoff_relocate_efi (sym, ANOFFSET (delta, s->block_line_section));
+#endif
}
}
}
for (i = 0; i < objfile->num_sections; ++i)
ANOFFSET (objfile->section_offsets, i) = ANOFFSET (new_offsets, i);
}
+
+ {
+ struct obj_section *s;
+ bfd *abfd;
+
+ abfd = symfile_objfile->obfd;
+
+ for (s = symfile_objfile->sections;
+ s < symfile_objfile->sections_end; ++s)
+ {
+ flagword flags;
+
+ flags = bfd_get_section_flags (abfd, s->the_bfd_section);
+
+ if (flags & SEC_CODE)
+ {
+ s->addr += ANOFFSET (delta, SECT_OFF_TEXT);
+ s->endaddr += ANOFFSET (delta, SECT_OFF_TEXT);
+ }
+ else if (flags & (SEC_DATA | SEC_LOAD))
+ {
+ s->addr += ANOFFSET (delta, SECT_OFF_DATA);
+ s->endaddr += ANOFFSET (delta, SECT_OFF_DATA);
+ }
+ else if (flags & SEC_ALLOC)
+ {
+ s->addr += ANOFFSET (delta, SECT_OFF_BSS);
+ s->endaddr += ANOFFSET (delta, SECT_OFF_BSS);
+ }
+ }
+ }
}
\f
/* Many places in gdb want to test just to see if we have any partial
AA = signal number
n... = register number
r... = register contents
- or... WAA The process extited, and AA is
+ or... WAA The process exited, and AA is
the exit status. This is only
applicable for certains sorts of
targets.
- or... NAATT;DD;BB Relocate the object file.
- AA = signal number
- TT = text address
- DD = data address
- BB = bss address
- This is used by the NLM stub,
- which is why it only has three
- addresses rather than one per
- section: the NLM stub always
- sees only three sections, even
- though gdb may see more.
-
kill request k
toggle debug d toggle debug flag (see 386 & 68k stubs)
we can extend the protocol and GDB
can tell whether the stub it is
talking to uses the old or the new.
+<<<<<<< remote.c
+ search tAA:PP,MM Search backwards starting at address
+||||||| 1.81
+ search tAA:PP,MM Search backword starting at address
+=======
search tAA:PP,MM Search backward starting at address
+>>>>>>> 1.82
AA for a match with pattern PP and
mask MM. PP and MM are 4 bytes.
Not supported by all stubs.
+<<<<<<< remote.c
+ general query qXXXX Request info about XXXX.
+ general set QXXXX=yyyy Set value of XXXX to yyyy.
+ query sect offs qOffsets Get section offsets. Reply is
+ Text=xxx;Data=yyy;Bss=zzz
+*/
+
+||||||| 1.81
+=======
Responses can be run-length encoded to save space. A '*' means that
the next two characters are hex digits giving a repeat count which
stands for that many repititions of the character preceding the '*'.
Note that this means that responses cannot contain '*'. Example:
"0*03" means the same as "0000". */
+>>>>>>> 1.82
#include "defs.h"
#include <string.h>
#include <fcntl.h>
remote_desc = NULL;
}
+/* Query the remote side for the text, data and bss offsets. */
+
+static void
+get_offsets ()
+{
+ unsigned char buf [PBUFSIZ];
+ int nvals;
+ CORE_ADDR text_addr, data_addr, bss_addr;
+ struct section_offsets *offs;
+
+ putpkt ("qOffsets");
+
+ getpkt (buf, 1);
+
+ if (buf[0] == 'E')
+ {
+ warning ("Remote failure reply: %s", buf);
+ return;
+ }
+
+ nvals = sscanf (buf, "Text=%lx;Data=%lx;Bss=%lx", &text_addr, &data_addr,
+ &bss_addr);
+ if (nvals != 3)
+ error ("Malformed response to offset query, %s", buf);
+
+ if (symfile_objfile == NULL)
+ return;
+
+ offs = (struct section_offsets *) alloca (sizeof (struct section_offsets)
+ + symfile_objfile->num_sections
+ * sizeof (offs->offsets));
+ memcpy (offs, symfile_objfile->section_offsets,
+ sizeof (struct section_offsets)
+ + symfile_objfile->num_sections
+ * sizeof (offs->offsets));
+
+ ANOFFSET (offs, SECT_OFF_TEXT) = text_addr;
+ ANOFFSET (offs, SECT_OFF_DATA) = data_addr;
+ ANOFFSET (offs, SECT_OFF_BSS) = bss_addr;
+
+ objfile_relocate (symfile_objfile, offs);
+}
+
/* Stub for catch_errors. */
static int
immediate_quit = 1; /* Allow user to interrupt it */
/* Ack any packet which the remote side has already sent. */
- /* I'm not sure this \r is needed; we don't use it any other time we
- send an ack. */
- SERIAL_WRITE (remote_desc, "+\r", 2);
+
+ SERIAL_WRITE (remote_desc, "+", 1);
+
+ get_offsets (); /* Get text, data & bss offsets */
+
putpkt ("?"); /* initiate a query from remote machine */
immediate_quit = 0;
start_remote (); /* Initialize gdb process mechanisms */
+
return 1;
}
}
break;
}
- else if (buf[0] == 'N')
- {
- unsigned char *p1;
- bfd_vma text_addr, data_addr, bss_addr;
-
- /* Relocate object file. Format is NAATT;DD;BB where AA is
- the signal number, TT is the new text address, DD is the
- new data address, and BB is the new bss address. This is
- used by the NLM stub; gdb may see more sections. */
- p = &buf[3];
- text_addr = strtoul (p, &p1, 16);
- if (p1 == p || *p1 != ';')
- warning ("Malformed relocation packet: Packet '%s'", buf);
- p = p1 + 1;
- data_addr = strtoul (p, &p1, 16);
- if (p1 == p || *p1 != ';')
- warning ("Malformed relocation packet: Packet '%s'", buf);
- p = p1 + 1;
- bss_addr = strtoul (p, &p1, 16);
- if (p1 == p)
- warning ("Malformed relocation packet: Packet '%s'", buf);
-
- if (symfile_objfile != NULL
- && (ANOFFSET (symfile_objfile->section_offsets,
- SECT_OFF_TEXT) != text_addr
- || ANOFFSET (symfile_objfile->section_offsets,
- SECT_OFF_DATA) != data_addr
- || ANOFFSET (symfile_objfile->section_offsets,
- SECT_OFF_BSS) != bss_addr))
- {
- struct section_offsets *offs;
-
- /* FIXME: This code assumes gdb-stabs.h is being used;
- it's broken for xcoff, dwarf, sdb-coff, etc. But
- there is no simple canonical representation for this
- stuff. (Just what does "text" as seen by the stub
- mean, anyway?). */
-
- offs = ((struct section_offsets *)
- alloca (sizeof (struct section_offsets)
- + (symfile_objfile->num_sections
- * sizeof (offs->offsets))));
- memcpy (offs, symfile_objfile->section_offsets,
- (sizeof (struct section_offsets)
- + (symfile_objfile->num_sections
- * sizeof (offs->offsets))));
- ANOFFSET (offs, SECT_OFF_TEXT) = text_addr;
- ANOFFSET (offs, SECT_OFF_DATA) = data_addr;
- ANOFFSET (offs, SECT_OFF_BSS) = bss_addr;
-
- objfile_relocate (symfile_objfile, offs);
- {
- struct obj_section *s;
- bfd *abfd;
-
- abfd = symfile_objfile->obfd;
-
- for (s = symfile_objfile->sections;
- s < symfile_objfile->sections_end; ++s)
- {
- flagword flags;
-
- flags = bfd_get_section_flags (abfd, s->the_bfd_section);
-
- if (flags & SEC_CODE)
- {
- s->addr += text_addr;
- s->endaddr += text_addr;
- }
- else if (flags & (SEC_DATA | SEC_LOAD))
- {
- s->addr += data_addr;
- s->endaddr += data_addr;
- }
- else if (flags & SEC_ALLOC)
- {
- s->addr += bss_addr;
- s->endaddr += bss_addr;
- }
- }
- }
- }
- break;
- }
else if (buf[0] == 'W')
{
/* The remote process exited. */
projects / thirdparty / binutils-gdb.git / commitdiff
