Make SunOS core files work right -- from both sun3 and sun4.
Also, make them work on any other host system.
This commit is contained in:
John Gilmore
parent
965a9f149c
commit
4f8b86271e
1 changed files with 157 additions and 69 deletions
226
bfd/aoutf1.h
226
bfd/aoutf1.h
|
|
@ -31,30 +31,24 @@ struct external_exec;
|
|||
#include "ar.h"
|
||||
|
||||
/*
|
||||
inheritd two core files and various implimentation files.
|
||||
The file @code{aoutf1.h} contains the code for BFD's
|
||||
a.out back end. Control over the generated back end is given by these
|
||||
three preprocessor names:
|
||||
two preprocessor names:
|
||||
@table @code
|
||||
@item ARCH
|
||||
@item ARCH_SIZE
|
||||
This value should be either 32 or 64, depending upon the size of an
|
||||
int in the target format. It changes the sizes of the structs which
|
||||
perform the memory/disk mapping of structures.
|
||||
|
||||
The 64 bit backend may only be used if the host compiler supports 64
|
||||
ints (eg with gcc), by defining the name @code{HOST_64_BIT}. With this
|
||||
name defined, @emph{all} bfd operations are performed with 64bit
|
||||
ints (eg long long with gcc), by defining the name @code{HOST_64_BIT} in @code{bfd.h}.
|
||||
With this name defined, @emph{all} bfd operations are performed with 64bit
|
||||
arithmetic, not just those to a 64bit target.
|
||||
|
||||
@item TARGETNAME
|
||||
bit long longsIf bfd is being compiled with gcc, (or any other compiler which gives
|
||||
64 bit long longs),
|
||||
The name put into the target vector.
|
||||
@item
|
||||
It is structured in such a way that @code{#define}ing
|
||||
the size of the architecture into a @code{#include}ing
|
||||
it with different @code{#define}s present will alter the definitions
|
||||
of various structures in include files and generate correct code for
|
||||
th
|
||||
@end table
|
||||
|
||||
*/
|
||||
|
||||
|
|
@ -250,11 +244,12 @@ struct regs {
|
|||
neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't
|
||||
even portably access the stuff in between! */
|
||||
|
||||
struct core {
|
||||
struct external_sparc_core {
|
||||
int c_magic; /* Corefile magic number */
|
||||
int c_len; /* Sizeof (struct core) */
|
||||
struct regs c_regs; /* General purpose registers -- MACHDEP SIZE */
|
||||
struct internal_exec c_aouthdr; /* A.out header */
|
||||
#define SPARC_CORE_LEN 432
|
||||
int c_regs[19]; /* General purpose registers -- MACHDEP SIZE */
|
||||
struct external_exec c_aouthdr; /* A.out header */
|
||||
int c_signo; /* Killing signal, if any */
|
||||
int c_tsize; /* Text size (bytes) */
|
||||
int c_dsize; /* Data size (bytes) */
|
||||
|
|
@ -269,26 +264,121 @@ struct core {
|
|||
portably know the size of fp_stuff.) */
|
||||
};
|
||||
|
||||
/* Supposedly the user stack grows downward from the bottom of kernel memory.
|
||||
Presuming that this remains true, this definition will work. */
|
||||
struct external_sun3_core {
|
||||
int c_magic; /* Corefile magic number */
|
||||
int c_len; /* Sizeof (struct core) */
|
||||
#define SUN3_CORE_LEN 826 /* As of SunOS 4.1.1 */
|
||||
int c_regs[18]; /* General purpose registers -- MACHDEP SIZE */
|
||||
struct external_exec c_aouthdr; /* A.out header */
|
||||
int c_signo; /* Killing signal, if any */
|
||||
int c_tsize; /* Text size (bytes) */
|
||||
int c_dsize; /* Data size (bytes) */
|
||||
int c_ssize; /* Stack size (bytes) */
|
||||
char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
|
||||
double fp_stuff[1]; /* external FPU state (size unknown by us) */
|
||||
/* The type "double" is critical here, for alignment.
|
||||
SunOS declares a struct here, but the struct's alignment
|
||||
is double since it contains doubles. */
|
||||
int c_ucode; /* Exception no. from u_code */
|
||||
/* (this member is not accessible by name since we don't
|
||||
portably know the size of fp_stuff.) */
|
||||
};
|
||||
|
||||
struct internal_sunos_core {
|
||||
int c_magic; /* Corefile magic number */
|
||||
int c_len; /* Sizeof (struct core) */
|
||||
long c_regs_pos; /* file offset of General purpose registers */
|
||||
int c_regs_size; /* size of General purpose registers */
|
||||
struct internal_exec c_aouthdr; /* A.out header */
|
||||
int c_signo; /* Killing signal, if any */
|
||||
int c_tsize; /* Text size (bytes) */
|
||||
int c_dsize; /* Data size (bytes) */
|
||||
int c_ssize; /* Stack size (bytes) */
|
||||
long c_stacktop; /* Stack top (address) */
|
||||
char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
|
||||
long fp_stuff_pos; /* file offset of external FPU state (regs) */
|
||||
int fp_stuff_size; /* Size of it */
|
||||
int c_ucode; /* Exception no. from u_code */
|
||||
};
|
||||
|
||||
/* byte-swap in the Sun-3 core structure */
|
||||
static void
|
||||
DEFUN(swapcore_sun3,(abfd, ext, intcore),
|
||||
bfd *abfd AND
|
||||
char *ext;
|
||||
struct internal_sunos_core *intcore)
|
||||
{
|
||||
struct external_exec exec_bytes;
|
||||
struct external_sun3_core *extcore = (struct external_sun3_core *)ext;
|
||||
|
||||
intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_magic);
|
||||
intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_len );
|
||||
intcore->c_regs_pos = (long) (((struct external_sun3_core *)0)->c_regs);
|
||||
intcore->c_regs_size = sizeof (extcore->c_regs);
|
||||
NAME(aout,swap_exec_header_in)(abfd, &extcore->c_aouthdr,&intcore->c_aouthdr);
|
||||
intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_signo);
|
||||
intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_tsize);
|
||||
intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_dsize);
|
||||
intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_ssize);
|
||||
bcopy (extcore->c_cmdname, intcore->c_cmdname, sizeof (intcore->c_cmdname));
|
||||
intcore->fp_stuff_pos = (long) (((struct external_sun3_core *)0)->fp_stuff);
|
||||
/* FP stuff takes up whole rest of struct, except c_ucode. */
|
||||
intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
|
||||
(file_ptr)(((struct external_sun3_core *)0)->fp_stuff);
|
||||
/* Ucode is the last thing in the struct -- just before the end */
|
||||
intcore->c_ucode = bfd_h_get_32 (abfd,
|
||||
intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *)extcore);
|
||||
intcore->c_stacktop = 0x0E000000; /* By experimentation */
|
||||
}
|
||||
|
||||
|
||||
/* byte-swap in the Sun-3 core structure */
|
||||
static void
|
||||
DEFUN(swapcore_sparc,(abfd, ext, intcore),
|
||||
bfd *abfd AND
|
||||
char *ext;
|
||||
struct internal_sunos_core *intcore)
|
||||
{
|
||||
struct external_sparc_core *extcore = (struct external_sparc_core *)ext;
|
||||
|
||||
intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_magic);
|
||||
intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_len );
|
||||
intcore->c_regs_pos = (long) (((struct external_sparc_core *)0)->c_regs);
|
||||
intcore->c_regs_size = sizeof (extcore->c_regs);
|
||||
NAME(aout,swap_exec_header_in)(abfd, &extcore->c_aouthdr,&intcore->c_aouthdr);
|
||||
intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_signo);
|
||||
intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_tsize);
|
||||
intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_dsize);
|
||||
intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_ssize);
|
||||
bcopy (extcore->c_cmdname, intcore->c_cmdname, sizeof (intcore->c_cmdname));
|
||||
intcore->fp_stuff_pos = (long) (((struct external_sparc_core *)0)->fp_stuff);
|
||||
/* FP stuff takes up whole rest of struct, except c_ucode. */
|
||||
intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
|
||||
(file_ptr)(((struct external_sparc_core *)0)->fp_stuff);
|
||||
/* Ucode is the last thing in the struct -- just before the end */
|
||||
intcore->c_ucode = bfd_h_get_32 (abfd,
|
||||
intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *)extcore);
|
||||
/* Supposedly the user stack grows downward from the bottom of kernel memory.
|
||||
Presuming that this remains true, this definition will work. */
|
||||
#define USRSTACK (-(128*1024*1024))
|
||||
intcore->c_stacktop = USRSTACK; /* By experimentation */
|
||||
#undef USRSTACK
|
||||
}
|
||||
|
||||
PROTO (static void, swapcore, (bfd *abfd, struct core *core));
|
||||
|
||||
/* need this cast b/c ptr is really void * */
|
||||
#define core_hdr(bfd) (((struct suncordata *) (bfd->tdata))->hdr)
|
||||
#define core_datasec(bfd) (((struct suncordata *) ((bfd)->tdata))->data_section)
|
||||
#define core_stacksec(bfd) (((struct suncordata*)((bfd)->tdata))->stack_section)
|
||||
#define core_regsec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg_section)
|
||||
#define core_reg2sec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg2_section)
|
||||
/* need this cast because ptr is really void * */
|
||||
#define core_hdr(bfd) (((struct suncoredata *) (bfd->tdata))->hdr)
|
||||
#define core_datasec(bfd) (((struct suncoredata *) ((bfd)->tdata))->data_section)
|
||||
#define core_stacksec(bfd) (((struct suncoredata*)((bfd)->tdata))->stack_section)
|
||||
#define core_regsec(bfd) (((struct suncoredata *) ((bfd)->tdata))->reg_section)
|
||||
#define core_reg2sec(bfd) (((struct suncoredata *) ((bfd)->tdata))->reg2_section)
|
||||
|
||||
/* These are stored in the bfd's tdata */
|
||||
struct suncordata {
|
||||
struct core *hdr; /* core file header */
|
||||
asection *data_section;
|
||||
asection *stack_section;
|
||||
asection *reg_section;
|
||||
asection *reg2_section;
|
||||
struct suncoredata {
|
||||
struct internal_sunos_core *hdr; /* core file header */
|
||||
asection *data_section;
|
||||
asection *stack_section;
|
||||
asection *reg_section;
|
||||
asection *reg2_section;
|
||||
};
|
||||
|
||||
static bfd_target *
|
||||
|
|
@ -298,8 +388,14 @@ DEFUN(sunos4_core_file_p,(abfd),
|
|||
unsigned char longbuf[4]; /* Raw bytes of various header fields */
|
||||
int core_size;
|
||||
int core_mag;
|
||||
struct core *core;
|
||||
struct internal_sunos_core *core;
|
||||
char *extcore;
|
||||
char *rawptr;
|
||||
struct mergem {
|
||||
struct suncoredata suncoredata;
|
||||
struct internal_sunos_core internal_sunos_core;
|
||||
char external_core[1];
|
||||
} *mergem;
|
||||
|
||||
bfd_error = system_call_error;
|
||||
|
||||
|
|
@ -321,22 +417,38 @@ DEFUN(sunos4_core_file_p,(abfd),
|
|||
|
||||
if (bfd_seek (abfd, 0L, false) < 0) return 0;
|
||||
|
||||
rawptr = bfd_zalloc (abfd, core_size + sizeof (struct suncordata));
|
||||
if (rawptr == NULL) {
|
||||
mergem = (struct mergem *)bfd_zalloc (abfd, core_size + sizeof (struct mergem));
|
||||
if (mergem == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return 0;
|
||||
}
|
||||
|
||||
core = (struct core *) (rawptr + sizeof (struct suncordata));
|
||||
extcore = mergem->external_core;
|
||||
|
||||
if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size) {
|
||||
if ((bfd_read ((PTR) extcore, 1, core_size, abfd)) != core_size) {
|
||||
bfd_error = system_call_error;
|
||||
bfd_release (abfd, rawptr);
|
||||
bfd_release (abfd, (char *)mergem);
|
||||
return 0;
|
||||
}
|
||||
|
||||
swapcore (abfd, core);
|
||||
set_tdata (abfd, ((struct suncordata *) rawptr));
|
||||
/* Validate that it's a core file we know how to handle, due to sun
|
||||
botching the positioning of registers and other fields in a machine
|
||||
dependent way. */
|
||||
core = &mergem->internal_sunos_core;
|
||||
switch (core_size) {
|
||||
case SPARC_CORE_LEN:
|
||||
swapcore_sparc (abfd, extcore, core);
|
||||
break;
|
||||
case SUN3_CORE_LEN:
|
||||
swapcore_sun3 (abfd, extcore, core);
|
||||
break;
|
||||
default:
|
||||
bfd_error = system_call_error; /* FIXME */
|
||||
bfd_release (abfd, (char *)mergem);
|
||||
return 0;
|
||||
}
|
||||
|
||||
set_tdata (abfd, &mergem->suncoredata);
|
||||
core_hdr (abfd) = core;
|
||||
|
||||
/* create the sections. This is raunchy, but bfd_close wants to reclaim
|
||||
|
|
@ -378,21 +490,19 @@ DEFUN(sunos4_core_file_p,(abfd),
|
|||
|
||||
core_stacksec (abfd)->size = core->c_ssize;
|
||||
core_datasec (abfd)->size = core->c_dsize;
|
||||
core_regsec (abfd)->size = (sizeof core->c_regs);
|
||||
/* Float regs take up end of struct, except c_ucode. */
|
||||
core_reg2sec (abfd)->size = core_size - (sizeof core->c_ucode) -
|
||||
(file_ptr)(((struct core *)0)->fp_stuff);
|
||||
core_regsec (abfd)->size = core->c_regs_size;
|
||||
core_reg2sec (abfd)->size = core->fp_stuff_size;
|
||||
|
||||
core_stacksec (abfd)->vma = (USRSTACK - core->c_ssize);
|
||||
core_stacksec (abfd)->vma = (core->c_stacktop - core->c_ssize);
|
||||
core_datasec (abfd)->vma = N_DATADDR(core->c_aouthdr);
|
||||
core_regsec (abfd)->vma = -1;
|
||||
core_reg2sec (abfd)->vma = -1;
|
||||
|
||||
core_stacksec (abfd)->filepos = core->c_len + core->c_dsize;
|
||||
core_datasec (abfd)->filepos = core->c_len;
|
||||
/* In file header: */
|
||||
core_regsec (abfd)->filepos = (file_ptr)(&((struct core *)0)->c_regs);
|
||||
core_reg2sec (abfd)->filepos = (file_ptr)(((struct core *)0)->fp_stuff);
|
||||
/* We'll access the regs afresh in the core file, like any section: */
|
||||
core_regsec (abfd)->filepos = (file_ptr)core->c_regs_pos;
|
||||
core_reg2sec (abfd)->filepos = (file_ptr)core->fp_stuff_pos;
|
||||
|
||||
/* Align to word at least */
|
||||
core_stacksec (abfd)->alignment_power = 2;
|
||||
|
|
@ -436,28 +546,6 @@ DEFUN(sunos4_core_file_matches_executable_p, (core_bfd, exec_bfd),
|
|||
return (bcmp ((char *)&core_hdr (core_bfd), (char*) &exec_hdr (exec_bfd),
|
||||
sizeof (struct internal_exec)) == 0) ? true : false;
|
||||
}
|
||||
|
||||
/* byte-swap core structure */
|
||||
/* FIXME, this needs more work to swap IN a core struct from raw bytes */
|
||||
static void
|
||||
DEFUN(swapcore,(abfd, core),
|
||||
bfd *abfd AND
|
||||
struct core *core)
|
||||
{
|
||||
struct external_exec exec_bytes;
|
||||
|
||||
core->c_magic = bfd_h_get_32 (abfd, (unsigned char *)&core->c_magic);
|
||||
core->c_len = bfd_h_get_32 (abfd, (unsigned char *)&core->c_len );
|
||||
/* Leave integer registers in target byte order. */
|
||||
bcopy ((char *)&(core->c_aouthdr), (char *)&exec_bytes, EXEC_BYTES_SIZE);
|
||||
NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &core->c_aouthdr);
|
||||
core->c_signo = bfd_h_get_32 (abfd, (unsigned char *)&core->c_signo);
|
||||
core->c_tsize = bfd_h_get_32 (abfd, (unsigned char *)&core->c_tsize);
|
||||
core->c_dsize = bfd_h_get_32 (abfd, (unsigned char *)&core->c_dsize);
|
||||
core->c_ssize = bfd_h_get_32 (abfd, (unsigned char *)&core->c_ssize);
|
||||
/* Leave FP registers in target byte order. */
|
||||
/* Leave "c_ucode" unswapped for now, since we can't find it easily. */
|
||||
}
|
||||
|
||||
/* We use BFD generic archive files. */
|
||||
#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
|
||||
|
|
|
|||
Loading…
Reference in a new issue