X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Frs6000-core.c;h=696e8fdd99105cb4b8222da76c4c19959bcc0279;hb=ebe84f23d2f3c0cb145cc7b3acfb011a4c7df1c9;hp=1f622b3b2e4525196c333ca9b48a2f1851b1d024;hpb=3db64b009284dda3a1ce10a91beb1297475e60a7;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/rs6000-core.c b/bfd/rs6000-core.c index 1f622b3b2e..696e8fdd99 100644 --- a/bfd/rs6000-core.c +++ b/bfd/rs6000-core.c @@ -1,13 +1,6 @@ /* IBM RS/6000 "XCOFF" back-end for BFD. - Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, - 2001, 2002, 2004, 2006, 2007 - Free Software Foundation, Inc. - FIXME: Can someone provide a transliteration of this name into ASCII? - Using the following chars caused a compiler warning on HIUX (so I replaced - them with octal escapes), and isn't useful without an understanding of what - character set it is. - Written by Metin G. Ozisik, Mimi Ph\373\364ng-Th\345o V\365, - and John Gilmore. + Copyright (C) 1990-2020 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. @@ -15,7 +8,7 @@ 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 2 of the License, or + 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, @@ -25,7 +18,9 @@ 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. */ + 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. @@ -60,9 +55,7 @@ #undef SCNHDR -/* ------------------------------------------------------------------------ */ -/* Support for core file stuff.. */ -/* ------------------------------------------------------------------------ */ +/* Support for core file stuff. */ #include #define __LDINFO_PTRACE32__ /* for __ld_info32 */ @@ -96,8 +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 @@ -108,37 +102,60 @@ typedef union { /* Union of old and new core dump structures. */ -typedef union { +typedef union +{ #ifdef AIX_CORE_DUMPX_CORE - struct core_dumpx new; /* new AIX 4.3+ core dump */ + struct core_dumpx new_dump; /* New AIX 4.3+ core dump. */ #else - struct core_dump new; /* 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; + struct vm_infox new_dump; #else - struct vm_info new; + 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) 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 @@ -250,15 +267,19 @@ 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. */ -const bfd_target * rs6000coff_core_p (bfd *abfd); +const bfd_cleanup rs6000coff_core_p (bfd *abfd); bfd_boolean rs6000coff_core_file_matches_executable_p (bfd *core_bfd, - bfd *exec_bfd); + bfd *exec_bfd); char * rs6000coff_core_file_failing_command (bfd *abfd); int rs6000coff_core_file_failing_signal (bfd *abfd); @@ -281,9 +302,11 @@ read_hdr (bfd *abfd, CoreHdr *core) /* Read the trailing portion of the structure. */ if (CORE_NEW (*core)) - size = sizeof (core->new); + 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; } @@ -309,7 +332,7 @@ make_bfd_asection (bfd *abfd, const char *name, flagword flags, /* Decide if a given bfd represents a `core' file or not. There really is no magic number or anything like, in rs6000coff. */ -const bfd_target * +bfd_cleanup rs6000coff_core_p (bfd *abfd) { CoreHdr core; @@ -332,16 +355,24 @@ rs6000coff_core_p (bfd *abfd) 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.c_flag; - c_stack = (file_ptr) core.new.c_stack; - c_size = core.new.c_size; - c_stackend = CNEW_STACKORG (core.new) + c_size; - c_lsize = CNEW_LSIZE (core.new); - c_loader = CNEW_LOADER (core.new); - proc64 = CNEW_PROC64 (core.new); + 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); +#ifndef BFD64 + proc64 = CNEW_PROC64 (core.new_dump); } else { @@ -351,24 +382,27 @@ 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; } if (proc64) { - c_regsize = sizeof (CNEW_CONTEXT64 (core.new)); - c_regptr = &CNEW_CONTEXT64 (core.new); + 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)); - c_regptr = &CNEW_MSTSAVE (core.new); + 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) @@ -418,9 +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; @@ -428,11 +468,14 @@ rs6000coff_core_p (bfd *abfd) /* Issue warning if the core file was truncated during writing. */ if (c_flag & CORE_TRUNC) - (*_bfd_error_handler) (_("%s: warning core file truncated"), - bfd_get_filename (abfd)); + _bfd_error_handler (_("%pB: warning core file truncated"), abfd); /* Allocate core file header. */ - size = CORE_NEW (core) ? sizeof (core.new) : sizeof (core.old); +#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; @@ -447,7 +490,7 @@ rs6000coff_core_p (bfd *abfd) enum bfd_architecture arch; unsigned long mach; - switch (CNEW_IMPL (core.new)) + switch (CNEW_IMPL (core.new_dump)) { case POWER_RS1: case POWER_RSC: @@ -513,6 +556,7 @@ 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; @@ -520,11 +564,12 @@ rs6000coff_core_p (bfd *abfd) if (CORE_NEW (core)) { - c_datasize = CNEW_DATASIZE (core.new); - c_data = (file_ptr) core.new.c_data; - c_vmregions = core.new.c_vmregions; - c_vmm = (file_ptr) core.new.c_vmm; + 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; @@ -532,23 +577,32 @@ 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) { @@ -568,7 +622,7 @@ rs6000coff_core_p (bfd *abfd) { ldi_core = ldinfo.l32.ldinfo_core; ldi_datasize = ldinfo.l32.ldinfo_datasize; - ldi_dataorg = (bfd_vma) (long) ldinfo.l32.ldinfo_dataorg; + ldi_dataorg = (bfd_vma) (ptr_to_uint) ldinfo.l32.ldinfo_dataorg; ldi_next = ldinfo.l32.ldinfo_next; } @@ -598,22 +652,28 @@ rs6000coff_core_p (bfd *abfd) file_ptr vminfo_offset; bfd_vma vminfo_addr; - size = CORE_NEW (core) ? sizeof (vminfo.new) : sizeof (vminfo.old); +#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; if (CORE_NEW (core)) { - vminfo_addr = (bfd_vma) vminfo.new.vminfo_addr; - vminfo_size = vminfo.new.vminfo_size; - vminfo_offset = vminfo.new.vminfo_offset; + 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) (long) vminfo.old.vminfo_addr; + 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", @@ -626,7 +686,7 @@ rs6000coff_core_p (bfd *abfd) } #endif - return abfd->xvec; /* This is garbage for now. */ + return _bfd_no_cleanup; fail: bfd_release (abfd, abfd->tdata.any); @@ -652,11 +712,13 @@ rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) return FALSE; if (CORE_NEW (core)) - c_loader = CNEW_LOADER (core.new); + 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)) + if (CORE_NEW (core) && CNEW_PROC64 (core.new_dump)) size = (int) ((LdInfo *) 0)->l64.ldinfo_filename; else size = (int) ((LdInfo *) 0)->l32.ldinfo_filename; @@ -697,11 +759,11 @@ rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) } str1 = strrchr (path, '/'); - str2 = strrchr (exec_bfd->filename, '/'); + str2 = strrchr (bfd_get_filename (exec_bfd), '/'); /* step over character '/' */ str1 = str1 != NULL ? str1 + 1 : path; - str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename; + str2 = str2 != NULL ? str2 + 1 : bfd_get_filename (exec_bfd); if (strcmp (str1, str2) == 0) ret = TRUE; @@ -717,8 +779,12 @@ char * rs6000coff_core_file_failing_command (bfd *abfd) { CoreHdr *core = core_hdr (abfd); +#ifndef BFD64 char *com = CORE_NEW (*core) ? - CNEW_COMM (core->new) : COLD_COMM (core->old); + CNEW_COMM (core->new_dump) : COLD_COMM (core->old); +#else + char *com = CNEW_COMM (core->new_dump); +#endif if (*com) return com; @@ -730,7 +796,11 @@ int rs6000coff_core_file_failing_signal (bfd *abfd) { CoreHdr *core = core_hdr (abfd); - return CORE_NEW (*core) ? core->new.c_signo : core->old.c_signo; +#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 */