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Add support for 32-bit and 64-bit PowerPC AIX core files.

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* configure.ac (powerpc64-*-aix[5-9].*): Match powerpc64 running
	aix for core file support.
	* configure: Regenerate.
	* rs6000-core.c: Check for __ld_info64 if compiling 64-bit gdb.
	Added BFD64 check if we are using old core file format for 32-bit gdb.
	Set sizeof CORE_COMMONSZ appropriately in case of either new or
	old core file format.
	(read_hdr): Added BFD64 check for 64-bit support.
	(rs6000coff_core_p): Likewise.
	(rs6000coff_core_file_matches_executable_p): Likewise.
	(rs6000coff_core_file_failing_command): Likewise.
	(rs6000coff_core_file_failing_signal): Likewise.
	Add support for debugging core files generated by binaries in
	Large Memory model.
	(rs6000coff_core_p): If Large Memory Model is used, then the .data
	segment should start from BDATAORG which has been defined in the
	system header files.
This commit is contained in:
Sangamesh Mallayya 2015-10-27 10:30:29 +00:00 committed by Nick Clifton
parent ef8e6722f2
commit d6867a7559
4 changed files with 101 additions and 23 deletions
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20
bfd/ChangeLog
View File

@ -1,3 +1,23 @@
2015-10-27 Sangamesh Mallayya <nickc@redhat.com>sangamesh.swamy@in.ibm.com>
* configure.ac (powerpc64-*-aix[5-9].*): Match powerpc64 running
aix for core file support.
* configure: Regenerate.
* rs6000-core.c: Check for __ld_info64 if compiling 64-bit gdb.
Added BFD64 check if we are using old core file format for 32-bit gdb.
Set sizeof CORE_COMMONSZ appropriately in case of either new or
old core file format.
(read_hdr): Added BFD64 check for 64-bit support.
(rs6000coff_core_p): Likewise.
(rs6000coff_core_file_matches_executable_p): Likewise.
(rs6000coff_core_file_failing_command): Likewise.
(rs6000coff_core_file_failing_signal): Likewise.
Add support for debugging core files generated by binaries in
Large Memory model.
(rs6000coff_core_p): If Large Memory Model is used, then the .data
segment should start from BDATAORG which has been defined in the
system header files.
2015-10-26 H.J. Lu <hongjiu.lu@intel.com>
PR ld/19175

3
bfd/configure vendored
View File

@ -14056,7 +14056,7 @@ if test "${target}" = "${host}"; then
rs6000-*-lynx*)
COREFILE=lynx-core.lo
;;
rs6000-*-aix[5-9].* | powerpc-*-aix[5-9].*)
rs6000-*-aix[5-9].* | powerpc-*-aix[5-9].* | powerpc64-*-aix[5-9].*)
COREFILE=rs6000-core.lo
COREFLAG="$COREFLAG -DAIX_5_CORE -DAIX_CORE_DUMPX_CORE"
;;
@ -14092,6 +14092,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
;;
rs6000-*-aix4*) COREFILE=rs6000-core.lo ;;
rs6000-*-*) COREFILE=rs6000-core.lo ;;
powerpc64-*-aix*) COREFILE=rs6000-core.lo ;;
powerpc-*-aix4*) COREFILE=rs6000-core.lo ;;
powerpc-*-aix*) COREFILE=rs6000-core.lo ;;
powerpc-*-beos*) ;;

3
bfd/configure.ac
View File

@ -428,7 +428,7 @@ changequote([,])dnl
COREFILE=lynx-core.lo
;;
changequote(,)dnl
rs6000-*-aix[5-9].* | powerpc-*-aix[5-9].*)
rs6000-*-aix[5-9].* | powerpc-*-aix[5-9].* | powerpc64-*-aix[5-9].*)
changequote([,])dnl
COREFILE=rs6000-core.lo
COREFLAG="$COREFLAG -DAIX_5_CORE -DAIX_CORE_DUMPX_CORE"
@ -447,6 +447,7 @@ changequote([,])dnl
;;
rs6000-*-aix4*) COREFILE=rs6000-core.lo ;;
rs6000-*-*) COREFILE=rs6000-core.lo ;;
powerpc64-*-aix*) COREFILE=rs6000-core.lo ;;
powerpc-*-aix4*) COREFILE=rs6000-core.lo ;;
powerpc-*-aix*) COREFILE=rs6000-core.lo ;;
powerpc-*-beos*) ;;

98
bfd/rs6000-core.c
View File

@ -55,9 +55,7 @@
#undef SCNHDR
/* ------------------------------------------------------------------------ */
/* Support for core file stuff.. */
/* ------------------------------------------------------------------------ */
/* Support for core file stuff. */
#include <sys/user.h>
#define __LDINFO_PTRACE32__ /* for __ld_info32 */
@ -91,8 +89,9 @@ typedef unsigned long ptr_to_uint;
/* Union of 32-bit and 64-bit versions of ld_info. */
typedef union {
#ifdef __ld_info32
typedef union
{
#if defined (__ld_info32) || defined (__ld_info64)
struct __ld_info32 l32;
struct __ld_info64 l64;
#else
@ -103,33 +102,43 @@ typedef union {
/* Union of old and new core dump structures. */
typedef union {
typedef union
{
#ifdef AIX_CORE_DUMPX_CORE
struct core_dumpx new_dump; /* new AIX 4.3+ core dump */
struct core_dumpx new_dump; /* New AIX 4.3+ core dump. */
#else
struct core_dump new_dump; /* for simpler coding */
struct core_dump new_dump; /* For simpler coding. */
#endif
#ifndef BFD64 /* Use old only if gdb is 32-bit. */
struct core_dump old; /* Old AIX 4.2- core dump, still used on
4.3+ with appropriate SMIT config. */
#endif
struct core_dump old; /* old AIX 4.2- core dump, still used on
4.3+ with appropriate SMIT config */
} CoreHdr;
/* Union of old and new vm_info structures. */
#ifdef CORE_VERSION_1
typedef union {
typedef union
{
#ifdef AIX_CORE_DUMPX_CORE
struct vm_infox new_dump;
#else
struct vm_info new_dump;
#endif
#ifndef BFD64
struct vm_info old;
#endif
} VmInfo;
#endif
/* Return whether CoreHdr C is in new or old format. */
#ifdef AIX_CORE_DUMPX_CORE
# define CORE_NEW(c) (!(c).old.c_entries)
# ifndef BFD64
# define CORE_NEW(c) (!(c).old.c_entries)
# else
# define CORE_NEW(c) (!(c).new_dump.c_entries)
# endif
#else
# define CORE_NEW(c) 0
#endif
@ -258,9 +267,13 @@ typedef union {
/* Size of the leading portion that old and new core dump structures have in
common. */
#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \
+ sizeof (((struct core_dump *) 0)->c_entries))
#ifdef AIX_CORE_DUMPX_CORE
#define CORE_COMMONSZ ((long) &((struct core_dumpx *) 0)->c_entries \
+ sizeof (((struct core_dumpx *) 0)->c_entries))
#else
#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \
+ sizeof (((struct core_dump *) 0)->c_entries)
#endif
/* Define prototypes for certain functions, to avoid a compiler warning
saying that they are missing. */
@ -290,8 +303,10 @@ read_hdr (bfd *abfd, CoreHdr *core)
/* Read the trailing portion of the structure. */
if (CORE_NEW (*core))
size = sizeof (core->new_dump);
#ifndef BFD64
else
size = sizeof (core->old);
#endif
size -= CORE_COMMONSZ;
return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size;
}
@ -356,6 +371,7 @@ rs6000coff_core_p (bfd *abfd)
c_stackend = CNEW_STACKORG (core.new_dump) + c_size;
c_lsize = CNEW_LSIZE (core.new_dump);
c_loader = CNEW_LOADER (core.new_dump);
#ifndef BFD64
proc64 = CNEW_PROC64 (core.new_dump);
}
else
@ -366,6 +382,7 @@ rs6000coff_core_p (bfd *abfd)
c_stackend = COLD_STACKEND;
c_lsize = 0x7ffffff;
c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
#endif
proc64 = 0;
}
@ -379,11 +396,13 @@ rs6000coff_core_p (bfd *abfd)
c_regsize = sizeof (CNEW_MSTSAVE (core.new_dump));
c_regptr = &CNEW_MSTSAVE (core.new_dump);
}
#ifndef BFD64
else
{
c_regsize = sizeof (COLD_MSTSAVE (core.old));
c_regptr = &COLD_MSTSAVE (core.old);
}
#endif
c_regoff = (char *) c_regptr - (char *) &core;
if (bfd_stat (abfd, &statbuf) < 0)
@ -433,9 +452,15 @@ rs6000coff_core_p (bfd *abfd)
}
/* Sanity check on the c_tab field. */
if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old ||
c_loader >= statbuf.st_size ||
c_loader >= c_stack))
if (!CORE_NEW (core)
&& (
#ifndef BFD64
c_loader < (file_ptr) sizeof core.old
#else
c_loader < (file_ptr) sizeof core.new_dump
#endif
|| c_loader >= statbuf.st_size
|| c_loader >= c_stack))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
@ -447,7 +472,11 @@ rs6000coff_core_p (bfd *abfd)
bfd_get_filename (abfd));
/* Allocate core file header. */
#ifndef BFD64
size = CORE_NEW (core) ? sizeof (core.new_dump) : sizeof (core.old);
#else
size = sizeof (core.new_dump);
#endif
tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size);
if (!tmpptr)
return NULL;
@ -528,6 +557,7 @@ rs6000coff_core_p (bfd *abfd)
file_ptr ldi_core;
uint ldi_next;
bfd_vma ldi_dataorg;
bfd_vma core_dataorg;
/* Fields from new and old core structures. */
bfd_size_type c_datasize, c_vmregions;
@ -540,6 +570,7 @@ rs6000coff_core_p (bfd *abfd)
c_vmregions = core.new_dump.c_vmregions;
c_vmm = (file_ptr) core.new_dump.c_vmm;
}
#ifndef BFD64
else
{
c_datasize = core.old.c_datasize;
@ -547,23 +578,32 @@ rs6000coff_core_p (bfd *abfd)
c_vmregions = core.old.c_vmregions;
c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm;
}
#endif
/* .data section from executable. */
if (c_datasize)
{
/* If Large Memory Model is used, then the .data segment should start from
BDATAORG which has been defined in the system header files. */
if (c_flag & CORE_BIGDATA)
core_dataorg = BDATAORG;
else
core_dataorg = CDATA_ADDR (c_datasize);
if (!make_bfd_asection (abfd, ".data",
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
c_datasize,
(bfd_vma) CDATA_ADDR (c_datasize),
(bfd_vma) core_dataorg,
c_data))
goto fail;
}
/* .data sections from loaded objects. */
if (proc64)
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
size = (unsigned long) ((LdInfo *) 0)->l64.ldinfo_filename;
else
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
size = (unsigned long) ((LdInfo *) 0)->l32.ldinfo_filename;
while (1)
{
@ -613,7 +653,11 @@ rs6000coff_core_p (bfd *abfd)
file_ptr vminfo_offset;
bfd_vma vminfo_addr;
#ifndef BFD64
size = CORE_NEW (core) ? sizeof (vminfo.new_dump) : sizeof (vminfo.old);
#else
size = sizeof (vminfo.new_dump);
#endif
if (bfd_bread (&vminfo, size, abfd) != size)
goto fail;
@ -623,12 +667,14 @@ rs6000coff_core_p (bfd *abfd)
vminfo_size = vminfo.new_dump.vminfo_size;
vminfo_offset = vminfo.new_dump.vminfo_offset;
}
#ifndef BFD64
else
{
vminfo_addr = (bfd_vma) (ptr_to_uint) vminfo.old.vminfo_addr;
vminfo_size = vminfo.old.vminfo_size;
vminfo_offset = vminfo.old.vminfo_offset;
}
#endif
if (vminfo_offset)
if (!make_bfd_asection (abfd, ".vmdata",
@ -668,8 +714,10 @@ rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
if (CORE_NEW (core))
c_loader = CNEW_LOADER (core.new_dump);
#ifndef BFD64
else
c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
#endif
if (CORE_NEW (core) && CNEW_PROC64 (core.new_dump))
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
@ -732,8 +780,12 @@ char *
rs6000coff_core_file_failing_command (bfd *abfd)
{
CoreHdr *core = core_hdr (abfd);
#ifndef BFD64
char *com = CORE_NEW (*core) ?
CNEW_COMM (core->new_dump) : COLD_COMM (core->old);
#else
char *com = CNEW_COMM (core->new_dump);
#endif
if (*com)
return com;
@ -745,7 +797,11 @@ int
rs6000coff_core_file_failing_signal (bfd *abfd)
{
CoreHdr *core = core_hdr (abfd);
#ifndef BFD64
return CORE_NEW (*core) ? core->new_dump.c_signo : core->old.c_signo;
#else
return core->new_dump.c_signo;
#endif
}
#endif /* AIX_CORE */