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RS/6000 portability changes (for hosting cross-debuggers).

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* breakpoint.c (fixup_breakpoints):  Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c:  Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args):  Remove an RS/6000 dependency.
* stabsread.c (define_symbol):  Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH):  Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH):  Remove: host-dep.
(NO_SINGLE_STEP):  Add, target-dependent.
(loadinfotextindex):  Lowercase, remove "aix_".
* xm-rs6000.h:  Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP):  Remove, target-dependent.
* xcoffexec.c (vmap_symtab):  Cleanup #if 0'd code.
* xcoffread.c:  Only build file if RS/6000 native GDB.
(build_function_symbol):  Remove #if 0'd code.
* rs6000-tdep.c:  Cleanup.  Add static fn protos.
Use CORE_ADDR for addresses throughout.  Make void fns void.
(pop_dummy_frame):  Add FIXME about bogosity of design here.
(rs6000_struct_return_address):  Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address):  Move from xdep file.
Use CORE_ADDRs.  Change identifiers to lowercase.

* rs6000-xdep.c:  Make whole file conditional on native RS/6000,
supplying dummy routines if non-native.  Add prototype for
static exec_one_dummy_insn.  Move a mess of functions to
rs6000-tdep.c (as above).  Remove #if 0'd code.

* config/rs6000.mh (XDEPFILES):  Move xcoffexec.o to target side.
(XM_CLIBS):  Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES):  Adopt xcoffexec.o.
This commit is contained in:
John Gilmore
1992-08-29 00:32:58 +00:00
parent 92a87f6afd
commit 9b280a7f53
9 changed files with 145 additions and 428 deletions
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90
gdb/xcoffread.c
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@@ -1,5 +1,6 @@
/* Read AIXcoff symbol tables and convert to internal format, for GDB.
Copyright (C) 1986-1991 Free Software Foundation, Inc.
/* Read AIX xcoff symbol tables and convert to internal format, for GDB.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992
Free Software Foundation, Inc.
Derived from coffread.c, dbxread.c, and a lot of hacking.
Contributed by IBM Corporation.
@@ -22,10 +23,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include "bfd.h"
#ifdef IBM6000_HOST
/* Native only: Need struct tbtable in <sys/debug.h>. */
#if defined(IBM6000_HOST) && defined(IBM6000_TARGET)
/* Native only: Need struct tbtable in <sys/debug.h> from host, and
need xcoff_add_toc_to_loadinfo in rs6000-tdep.c from target. */
/* AIX COFF names have a preceeding dot `.' */
/* AIX XCOFF names have a preceeding dot `.' */
#define NAMES_HAVE_DOT 1
#include <sys/types.h>
@@ -175,21 +177,21 @@ static int
init_stringtab PARAMS ((bfd *, long, struct objfile *));
static void
aixcoff_symfile_init PARAMS ((struct objfile *));
xcoff_symfile_init PARAMS ((struct objfile *));
static void
aixcoff_new_init PARAMS ((struct objfile *));
xcoff_new_init PARAMS ((struct objfile *));
struct section_offset;
static void
aixcoff_symfile_read PARAMS ((struct objfile *, struct section_offset *, int));
xcoff_symfile_read PARAMS ((struct objfile *, struct section_offset *, int));
static void
aixcoff_symfile_finish PARAMS ((struct objfile *));
xcoff_symfile_finish PARAMS ((struct objfile *));
static struct section_offsets *
aixcoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
xcoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
static int
init_lineno PARAMS ((bfd *, long, int));
@@ -453,11 +455,11 @@ static void
record_include_begin (cs)
struct coff_symbol *cs;
{
/* In aixcoff, we assume include files cannot be nested (not in .c files
/* In xcoff, we assume include files cannot be nested (not in .c files
of course, but in corresponding .s files.) */
if (inclDepth)
fatal ("aix internal: pending include file exists.");
fatal ("xcoff internal: pending include file exists.");
++inclDepth;
@@ -489,7 +491,7 @@ struct coff_symbol *cs;
InclTable *pTbl;
if (inclDepth == 0)
fatal ("aix internal: Mismatch C_BINCL/C_EINCL pair found.");
fatal ("xcoff internal: Mismatch C_BINCL/C_EINCL pair found.");
pTbl = &inclTable [inclIndx];
pTbl->end = cs->c_value;
@@ -979,7 +981,7 @@ static struct symbol parmsym = { /* default parameter symbol */
}
/* aixcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
/* xcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
nested. At any given time, a symbol can only be in one static block.
This is the base address of current static block, zero if non exists. */
@@ -1073,7 +1075,7 @@ read_xcoff_symtab (objfile, nsyms)
/* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */
/* read one symbol into `cs' structure. After processing the whole symbol
table, only string table will be kept in memory, symbol table and debug
section of aixcoff will be freed. Thus we can mark symbols with names
section of xcoff will be freed. Thus we can mark symbols with names
in string table as `alloced'. */
{
int ii;
@@ -2030,7 +2032,7 @@ init_lineno (abfd, offset, size)
(a \ at the end of the text of a name)
call this function to get the continuation. */
/* So far, I haven't seen this happenning xlc output. I doubt we'll need this
for aixcoff. */
for xcoff. */
#undef next_symbol_text
#define next_symbol_text() \
@@ -2100,42 +2102,14 @@ char **pp;
}
}
#if 0 /* Seems to be unused, don't bother converting from old misc function
vector usage to new minimal symbol tables. FIXME: Delete this? */
/* if we now nothing about a function but its address, make a function symbol
out of it with the limited knowladge you have. This will be used when
somebody refers to a function, which doesn't exist in the symbol table,
but is in the minimal symbol table. */
struct symbol *
build_function_symbol (ind, objfile)
int ind;
struct objfile *objfile;
{
struct symbol *sym =
(struct symbol *) obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol));
SYMBOL_NAME (sym) = misc_function_vector[ind].name;
/* SYMBOL_VALUE (sym) = misc_function_vector[ind].address; */
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
SYMBOL_CLASS (sym) = LOC_BLOCK;
SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (current_objfile, FT_INTEGER));
SYMBOL_BLOCK_VALUE (sym) = (struct block *)
obstack_alloc (&objfile->symbol_obstack, sizeof (struct block));
BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) = misc_function_vector[ind].address;
return sym;
}
#endif
static void
aixcoff_new_init (objfile)
xcoff_new_init (objfile)
struct objfile *objfile;
{
}
static void
aixcoff_symfile_init (objfile)
xcoff_symfile_init (objfile)
struct objfile *objfile;
{
bfd *abfd = objfile->obfd;
@@ -2152,7 +2126,7 @@ aixcoff_symfile_init (objfile)
objfile struct from the global list of known objfiles. */
static void
aixcoff_symfile_finish (objfile)
xcoff_symfile_finish (objfile)
struct objfile *objfile;
{
if (objfile -> sym_private != NULL)
@@ -2251,10 +2225,10 @@ free_debugsection()
}
/* aixcoff version of symbol file read. */
/* xcoff version of symbol file read. */
static void
aixcoff_symfile_read (objfile, section_offset, mainline)
xcoff_symfile_read (objfile, section_offset, mainline)
struct objfile *objfile;
struct section_offset *section_offset;
int mainline;
@@ -2341,7 +2315,7 @@ aixcoff_symfile_read (objfile, section_offset, mainline)
static
struct section_offsets *
aixcoff_symfile_offsets (objfile, addr)
xcoff_symfile_offsets (objfile, addr)
struct objfile *objfile;
CORE_ADDR addr;
{
@@ -2358,24 +2332,24 @@ aixcoff_symfile_offsets (objfile, addr)
return section_offsets;
}
/* Register our ability to parse symbols for aixcoff BFD files. */
/* Register our ability to parse symbols for xcoff BFD files. */
static struct sym_fns aixcoff_sym_fns =
static struct sym_fns xcoff_sym_fns =
{
"aixcoff-rs6000", /* sym_name: name or name prefix of BFD target type */
15, /* sym_namelen: number of significant sym_name chars */
aixcoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
aixcoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
aixcoff_symfile_read, /* sym_read: read a symbol file into symtab */
aixcoff_symfile_finish, /* sym_finish: finished with file, cleanup */
aixcoff_symfile_offsets, /* sym_offsets: xlate offsets ext->int form */
xcoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
xcoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
xcoff_symfile_read, /* sym_read: read a symbol file into symtab */
xcoff_symfile_finish, /* sym_finish: finished with file, cleanup */
xcoff_symfile_offsets, /* sym_offsets: xlate offsets ext->int form */
NULL /* next: pointer to next struct sym_fns */
};
void
_initialize_xcoffread ()
{
add_symtab_fns(&aixcoff_sym_fns);
add_symtab_fns(&xcoff_sym_fns);
}
#else /* IBM6000_HOST */