| /* IBM RS/6000 "XCOFF" back-end for BFD. |
| Copyright (C) 1990-2024 Free Software Foundation, Inc. |
| Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore. |
| Archive support from Damon A. Permezel. |
| Contributed by IBM Corporation and Cygnus Support. |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| |
| /* This port currently only handles reading object files, except when |
| compiled on an RS/6000 host. -- no archive support, no core files. |
| In all cases, it does not support writing. |
| |
| This is in a separate file from coff-rs6000.c, because it includes |
| system include files that conflict with coff/rs6000.h. */ |
| |
| /* Internalcoff.h and coffcode.h modify themselves based on this flag. */ |
| #define RS6000COFF_C 1 |
| |
| /* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so |
| we have to define _LONG_LONG for older versions of gcc to get the |
| proper alignments in the user structure. */ |
| #if defined(_AIX41) && !defined(_LONG_LONG) |
| #define _LONG_LONG |
| #endif |
| |
| #include "sysdep.h" |
| #include "bfd.h" |
| #include "libbfd.h" |
| |
| #ifdef AIX_CORE |
| |
| /* AOUTHDR is defined by the above. We need another defn of it, from the |
| system include files. Punt the old one and get us a new name for the |
| typedef in the system include files. */ |
| #ifdef AOUTHDR |
| #undef AOUTHDR |
| #endif |
| #define AOUTHDR second_AOUTHDR |
| |
| #undef SCNHDR |
| |
| /* Support for core file stuff. */ |
| |
| #include <sys/user.h> |
| #define __LDINFO_PTRACE32__ /* for __ld_info32 */ |
| #define __LDINFO_PTRACE64__ /* for __ld_info64 */ |
| #include <sys/ldr.h> |
| #include <sys/core.h> |
| #include <sys/systemcfg.h> |
| |
| /* Borrowed from <sys/inttypes.h> on recent AIX versions. */ |
| typedef unsigned long ptr_to_uint; |
| |
| #define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any) |
| |
| /* AIX 4.1 changed the names and locations of a few items in the core file. |
| AIX 4.3 defined an entirely new structure, core_dumpx, but kept support for |
| the previous 4.1 structure, core_dump. |
| |
| AIX_CORE_DUMPX_CORE is defined (by configure) on AIX 4.3+, and |
| CORE_VERSION_1 is defined (by AIX core.h) as 2 on AIX 4.3+ and as 1 on AIX |
| 4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1 |
| or else defines it as 0. */ |
| |
| #if defined(CORE_VERSION_1) && !CORE_VERSION_1 |
| # undef CORE_VERSION_1 |
| #endif |
| |
| /* The following union and macros allow this module to compile on all AIX |
| versions and to handle both core_dumpx and core_dump on 4.3+. CNEW_*() |
| and COLD_*() macros respectively retrieve core_dumpx and core_dump |
| values. */ |
| |
| /* Union of 32-bit and 64-bit versions of ld_info. */ |
| |
| typedef union |
| { |
| #if defined (__ld_info32) || defined (__ld_info64) |
| struct __ld_info32 l32; |
| struct __ld_info64 l64; |
| #else |
| struct ld_info l32; |
| struct ld_info l64; |
| #endif |
| } LdInfo; |
| |
| /* Union of old and new core dump structures. */ |
| |
| typedef union |
| { |
| #ifdef AIX_CORE_DUMPX_CORE |
| struct core_dumpx new_dump; /* New AIX 4.3+ core dump. */ |
| #else |
| 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 |
| } CoreHdr; |
| |
| /* Union of old and new vm_info structures. */ |
| |
| #ifdef CORE_VERSION_1 |
| 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 |
| # ifndef BFD64 |
| # define CORE_NEW(c) (!(c).old.c_entries) |
| # else |
| # define CORE_NEW(c) 1 |
| # endif |
| #else |
| # define CORE_NEW(c) 0 |
| #endif |
| |
| /* Return whether CoreHdr C usese core_dumpxx structure. |
| |
| FIXME: the core file format version number used here definitely indicates |
| that struct core_dumpxx should be used to represent the core file header, |
| but that may not be the only such format version number. */ |
| |
| #ifdef AIX_5_CORE |
| # define CORE_DUMPXX_VERSION 267312562 |
| # define CNEW_IS_CORE_DUMPXX(c) ((c).new_dump.c_version == CORE_DUMPXX_VERSION) |
| #else |
| # define CNEW_IS_CORE_DUMPXX(c) 0 |
| #endif |
| |
| /* Return the c_stackorg field from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_STACKORG(c) (c).c_stackorg |
| #else |
| # define CNEW_STACKORG(c) 0 |
| #endif |
| |
| /* Return the offset to the loader region from struct core_dump C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_LOADER(c) (c).c_loader |
| #else |
| # define CNEW_LOADER(c) 0 |
| #endif |
| |
| /* Return the offset to the loader region from struct core_dump C. */ |
| |
| #define COLD_LOADER(c) (c).c_tab |
| |
| /* Return the c_lsize field from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_LSIZE(c) (c).c_lsize |
| #else |
| # define CNEW_LSIZE(c) 0 |
| #endif |
| |
| /* Return the c_dataorg field from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_DATAORG(c) (c).c_dataorg |
| #else |
| # define CNEW_DATAORG(c) 0 |
| #endif |
| |
| /* Return the c_datasize field from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_DATASIZE(c) (c).c_datasize |
| #else |
| # define CNEW_DATASIZE(c) 0 |
| #endif |
| |
| /* Return the c_impl field from struct core_dumpx C. */ |
| |
| #if defined (HAVE_ST_C_IMPL) || defined (AIX_5_CORE) |
| # define CNEW_IMPL(c) (c).c_impl |
| #else |
| # define CNEW_IMPL(c) 0 |
| #endif |
| |
| /* Return the command string from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_COMM(c) (c).c_u.U_proc.pi_comm |
| #else |
| # define CNEW_COMM(c) 0 |
| #endif |
| |
| /* Return the command string from struct core_dump C. */ |
| |
| #ifdef CORE_VERSION_1 |
| # define COLD_COMM(c) (c).c_u.U_comm |
| #else |
| # define COLD_COMM(c) (c).c_u.u_comm |
| #endif |
| |
| /* Return the struct __context64 pointer from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64 |
| #else |
| # define CNEW_CONTEXT64(c) c |
| #endif |
| |
| /* Return the struct mstsave pointer from struct core_dumpx C. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32 |
| #else |
| # define CNEW_MSTSAVE(c) c |
| #endif |
| |
| /* Return the struct mstsave pointer from struct core_dump C. */ |
| |
| #ifdef CORE_VERSION_1 |
| # define COLD_MSTSAVE(c) (c).c_mst |
| #else |
| # define COLD_MSTSAVE(c) (c).c_u.u_save |
| #endif |
| |
| /* Return whether struct core_dumpx is from a 64-bit process. */ |
| |
| #ifdef AIX_CORE_DUMPX_CORE |
| # define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc) |
| #else |
| # define CNEW_PROC64(c) 0 |
| #endif |
| |
| /* Magic end-of-stack addresses for old core dumps. This is _very_ fragile, |
| but I don't see any easy way to get that info right now. */ |
| |
| #ifdef CORE_VERSION_1 |
| # define COLD_STACKEND 0x2ff23000 |
| #else |
| # define COLD_STACKEND 0x2ff80000 |
| #endif |
| |
| /* Size of the leading portion that old and new core dump structures have in |
| common. */ |
| #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. */ |
| |
| bfd_cleanup rs6000coff_core_p (bfd *abfd); |
| bool rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd); |
| char * rs6000coff_core_file_failing_command (bfd *abfd); |
| int rs6000coff_core_file_failing_signal (bfd *abfd); |
| |
| /* Try to read into CORE the header from the core file associated with ABFD. |
| Return success. */ |
| |
| static bool |
| read_hdr (bfd *abfd, CoreHdr *core) |
| { |
| bfd_size_type size; |
| |
| if (bfd_seek (abfd, 0, SEEK_SET) != 0) |
| return false; |
| |
| /* Read the leading portion that old and new core dump structures have in |
| common. */ |
| size = CORE_COMMONSZ; |
| if (bfd_read (core, size, abfd) != size) |
| return false; |
| |
| /* 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_read ((char *) core + CORE_COMMONSZ, size, abfd) == size; |
| } |
| |
| static asection * |
| make_bfd_asection (bfd *abfd, const char *name, flagword flags, |
| bfd_size_type size, bfd_vma vma, file_ptr filepos) |
| { |
| asection *asect; |
| |
| asect = bfd_make_section_anyway_with_flags (abfd, name, flags); |
| if (!asect) |
| return NULL; |
| |
| asect->size = size; |
| asect->vma = vma; |
| asect->filepos = filepos; |
| asect->alignment_power = 8; |
| |
| return asect; |
| } |
| |
| /* Decide if a given bfd represents a `core' file or not. There really is no |
| magic number or anything like, in rs6000coff. */ |
| |
| bfd_cleanup |
| rs6000coff_core_p (bfd *abfd) |
| { |
| CoreHdr core; |
| struct stat statbuf; |
| bfd_size_type size; |
| char *tmpptr; |
| |
| /* Values from new and old core structures. */ |
| int c_flag; |
| file_ptr c_stack, c_regoff, c_loader; |
| bfd_size_type c_size, c_regsize, c_lsize, c_extoff; |
| bfd_vma c_stackend; |
| void *c_regptr; |
| int proc64; |
| |
| if (!read_hdr (abfd, &core)) |
| { |
| if (bfd_get_error () != bfd_error_system_call) |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| |
| /* This isn't the right handler for 64-bit core files on AIX 5.x. */ |
| if (CORE_NEW (core) && CNEW_IS_CORE_DUMPXX (core)) |
| { |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| |
| /* Copy fields from new or old core structure. */ |
| if (CORE_NEW (core)) |
| { |
| c_flag = core.new_dump.c_flag; |
| c_stack = (file_ptr) core.new_dump.c_stack; |
| c_size = core.new_dump.c_size; |
| c_stackend = CNEW_STACKORG (core.new_dump) + c_size; |
| c_lsize = CNEW_LSIZE (core.new_dump); |
| c_loader = CNEW_LOADER (core.new_dump); |
| c_extoff = core.new_dump.c_extctx; |
| #ifndef BFD64 |
| proc64 = CNEW_PROC64 (core.new_dump); |
| } |
| else |
| { |
| c_flag = core.old.c_flag; |
| c_stack = (file_ptr) (ptr_to_uint) core.old.c_stack; |
| c_size = core.old.c_size; |
| c_stackend = COLD_STACKEND; |
| c_lsize = 0x7ffffff; |
| c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); |
| #endif |
| proc64 = 0; |
| } |
| |
| if (proc64) |
| { |
| c_regsize = sizeof (CNEW_CONTEXT64 (core.new_dump)); |
| c_regptr = &CNEW_CONTEXT64 (core.new_dump); |
| } |
| else if (CORE_NEW (core)) |
| { |
| 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) |
| { |
| bfd_set_error (bfd_error_system_call); |
| return NULL; |
| } |
| |
| /* If the core file ulimit is too small, the system will first |
| omit the data segment, then omit the stack, then decline to |
| dump core altogether (as far as I know UBLOCK_VALID and LE_VALID |
| are always set) (this is based on experimentation on AIX 3.2). |
| Now, the thing is that GDB users will be surprised |
| if segments just silently don't appear (well, maybe they would |
| think to check "info files", I don't know). |
| |
| For the data segment, we have no choice but to keep going if it's |
| not there, since the default behavior is not to dump it (regardless |
| of the ulimit, it's based on SA_FULLDUMP). But for the stack segment, |
| if it's not there, we refuse to have anything to do with this core |
| file. The usefulness of a core dump without a stack segment is pretty |
| limited anyway. */ |
| |
| if (!(c_flag & UBLOCK_VALID) |
| || !(c_flag & LE_VALID)) |
| { |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| |
| if (!(c_flag & USTACK_VALID)) |
| { |
| bfd_set_error (bfd_error_file_truncated); |
| return NULL; |
| } |
| |
| /* Don't check the core file size for a full core, AIX 4.1 includes |
| additional shared library sections in a full core. */ |
| if (!(c_flag & (FULL_CORE | CORE_TRUNC))) |
| { |
| /* If the size is wrong, it means we're misinterpreting something. */ |
| if (c_stack + (file_ptr) c_size != statbuf.st_size) |
| { |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| } |
| |
| /* Sanity check on the c_tab field. */ |
| 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; |
| } |
| |
| /* Issue warning if the core file was truncated during writing. */ |
| if (c_flag & CORE_TRUNC) |
| _bfd_error_handler (_("%pB: warning core file truncated"), 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; |
| |
| /* Copy core file header. */ |
| memcpy (tmpptr, &core, size); |
| set_tdata (abfd, tmpptr); |
| |
| /* Set architecture. */ |
| if (CORE_NEW (core)) |
| { |
| enum bfd_architecture arch; |
| unsigned long mach; |
| |
| switch (CNEW_IMPL (core.new_dump)) |
| { |
| case POWER_RS1: |
| case POWER_RSC: |
| case POWER_RS2: |
| arch = bfd_arch_rs6000; |
| mach = bfd_mach_rs6k; |
| break; |
| default: |
| arch = bfd_arch_powerpc; |
| mach = bfd_mach_ppc; |
| break; |
| } |
| bfd_default_set_arch_mach (abfd, arch, mach); |
| } |
| |
| /* .stack section. */ |
| if (!make_bfd_asection (abfd, ".stack", |
| SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
| c_size, c_stackend - c_size, c_stack)) |
| goto fail; |
| |
| /* .reg section for all registers. */ |
| if (!make_bfd_asection (abfd, ".reg", |
| SEC_HAS_CONTENTS, |
| c_regsize, (bfd_vma) 0, c_regoff)) |
| goto fail; |
| |
| if (c_extoff) |
| { |
| if (!make_bfd_asection (abfd, ".aix-vmx", |
| SEC_HAS_CONTENTS, |
| 560, (bfd_vma) 0, c_extoff)) |
| goto fail; |
| |
| if (!make_bfd_asection (abfd, ".aix-vsx", |
| SEC_HAS_CONTENTS, |
| 256, (bfd_vma) 0, c_extoff + 584)) |
| goto fail; |
| } |
| |
| /* .ldinfo section. |
| To actually find out how long this section is in this particular |
| core dump would require going down the whole list of struct ld_info's. |
| See if we can just fake it. */ |
| if (!make_bfd_asection (abfd, ".ldinfo", |
| SEC_HAS_CONTENTS, |
| c_lsize, (bfd_vma) 0, c_loader)) |
| goto fail; |
| |
| #ifndef CORE_VERSION_1 |
| /* .data section if present. |
| AIX 3 dumps the complete data section and sets FULL_CORE if the |
| ulimit is large enough, otherwise the data section is omitted. |
| AIX 4 sets FULL_CORE even if the core file is truncated, we have |
| to examine core.c_datasize below to find out the actual size of |
| the .data section. */ |
| if (c_flag & FULL_CORE) |
| { |
| if (!make_bfd_asection (abfd, ".data", |
| SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
| (bfd_size_type) core.old.c_u.u_dsize, |
| (bfd_vma) |
| CDATA_ADDR (core.old.c_u.u_dsize), |
| c_stack + c_size)) |
| goto fail; |
| } |
| #endif |
| |
| #ifdef CORE_VERSION_1 |
| /* AIX 4 adds data sections from loaded objects to the core file, |
| which can be found by examining ldinfo, and anonymously mmapped |
| regions. */ |
| { |
| LdInfo ldinfo; |
| bfd_size_type ldi_datasize; |
| 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; |
| file_ptr c_data, c_vmm; |
| |
| if (CORE_NEW (core)) |
| { |
| c_datasize = CNEW_DATASIZE (core.new_dump); |
| c_data = (file_ptr) core.new_dump.c_data; |
| 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; |
| c_data = (file_ptr) (ptr_to_uint) core.old.c_data; |
| 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) core_dataorg, |
| c_data)) |
| goto fail; |
| } |
| |
| /* .data sections from loaded objects. */ |
| if (proc64) |
| size = (unsigned long) ((LdInfo *) 0)->l64.ldinfo_filename; |
| else |
| size = (unsigned long) ((LdInfo *) 0)->l32.ldinfo_filename; |
| |
| while (1) |
| { |
| if (bfd_seek (abfd, c_loader, SEEK_SET) != 0) |
| goto fail; |
| if (bfd_read (&ldinfo, size, abfd) != size) |
| goto fail; |
| |
| if (proc64) |
| { |
| ldi_core = ldinfo.l64.ldinfo_core; |
| ldi_datasize = ldinfo.l64.ldinfo_datasize; |
| ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg; |
| ldi_next = ldinfo.l64.ldinfo_next; |
| } |
| else |
| { |
| ldi_core = ldinfo.l32.ldinfo_core; |
| ldi_datasize = ldinfo.l32.ldinfo_datasize; |
| ldi_dataorg = (bfd_vma) (ptr_to_uint) ldinfo.l32.ldinfo_dataorg; |
| ldi_next = ldinfo.l32.ldinfo_next; |
| } |
| |
| if (ldi_core) |
| if (!make_bfd_asection (abfd, ".data", |
| SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
| ldi_datasize, ldi_dataorg, ldi_core)) |
| goto fail; |
| |
| if (ldi_next == 0) |
| break; |
| c_loader += ldi_next; |
| } |
| |
| /* .vmdata sections from anonymously mmapped regions. */ |
| if (c_vmregions) |
| { |
| bfd_size_type i; |
| |
| if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0) |
| goto fail; |
| |
| for (i = 0; i < c_vmregions; i++) |
| { |
| VmInfo vminfo; |
| bfd_size_type vminfo_size; |
| 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_read (&vminfo, size, abfd) != size) |
| goto fail; |
| |
| if (CORE_NEW (core)) |
| { |
| vminfo_addr = (bfd_vma) vminfo.new_dump.vminfo_addr; |
| 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", |
| SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
| vminfo_size, vminfo_addr, |
| vminfo_offset)) |
| goto fail; |
| } |
| } |
| } |
| #endif |
| |
| return _bfd_no_cleanup; |
| |
| fail: |
| bfd_release (abfd, abfd->tdata.any); |
| abfd->tdata.any = NULL; |
| bfd_section_list_clear (abfd); |
| return NULL; |
| } |
| |
| /* Return `TRUE' if given core is from the given executable. */ |
| |
| bool |
| rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) |
| { |
| CoreHdr core; |
| bfd_size_type size; |
| char *path, *s; |
| size_t alloc; |
| const char *str1, *str2; |
| bool ret; |
| file_ptr c_loader; |
| |
| if (!read_hdr (core_bfd, &core)) |
| return false; |
| |
| 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; |
| else |
| size = (int) ((LdInfo *) 0)->l32.ldinfo_filename; |
| |
| if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0) |
| return false; |
| |
| alloc = 100; |
| path = bfd_malloc ((bfd_size_type) alloc); |
| if (path == NULL) |
| return false; |
| s = path; |
| |
| while (1) |
| { |
| if (bfd_read (s, 1, core_bfd) != 1) |
| { |
| free (path); |
| return false; |
| } |
| if (*s == '\0') |
| break; |
| ++s; |
| if (s == path + alloc) |
| { |
| char *n; |
| |
| alloc *= 2; |
| n = bfd_realloc (path, (bfd_size_type) alloc); |
| if (n == NULL) |
| { |
| free (path); |
| return false; |
| } |
| s = n + (path - s); |
| path = n; |
| } |
| } |
| |
| str1 = strrchr (path, '/'); |
| str2 = strrchr (bfd_get_filename (exec_bfd), '/'); |
| |
| /* step over character '/' */ |
| str1 = str1 != NULL ? str1 + 1 : path; |
| str2 = str2 != NULL ? str2 + 1 : bfd_get_filename (exec_bfd); |
| |
| if (strcmp (str1, str2) == 0) |
| ret = true; |
| else |
| ret = false; |
| |
| free (path); |
| |
| return ret; |
| } |
| |
| 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; |
| else |
| return 0; |
| } |
| |
| 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 */ |