X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fhpux-core.c;h=2ecd4f17d5916f780a7e7940fa3b03bf88e76a6a;hb=07a78c595604b00908f06396aa221d446adbe6f8;hp=32b4eb4178860dfae871531ee6bf8226318e873e;hpb=eea6121ac0cb22524c627017191ca09825e3d702;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/hpux-core.c b/bfd/hpux-core.c index 32b4eb4178..2ecd4f17d5 100644 --- a/bfd/hpux-core.c +++ b/bfd/hpux-core.c @@ -1,33 +1,34 @@ /* BFD back-end for HP/UX core files. - Copyright 1993, 1994, 1996, 1998, 1999, 2001, 2002, 2003, 2004 - Free Software Foundation, Inc. + Copyright (C) 1993-2020 Free Software Foundation, Inc. Written by Stu Grossman, Cygnus Support. Converted to back-end form by Ian Lance Taylor, Cygnus SUpport -This file is part of BFD, the Binary File Descriptor library. + 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 2 of the License, or -(at your option) any later version. + 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. + 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. */ -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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This file can only be compiled on systems which use HP/UX style core files. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" -#if defined (HOST_HPPAHPUX) || defined (HOST_HP300HPUX) || defined (HOST_HPPAMPEIX) +#if defined (HOST_HPPAHPUX) || defined (HOST_HPPAMPEIX) /* FIXME: sys/core.h doesn't exist for HPUX version 7. HPUX version 5, 6, and 7 core files seem to be standard trad-core.c type core @@ -61,8 +62,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ # endif #endif #include +#ifdef HPUX_CORE #include -#include /* After a.out.h */ +#endif #include /* Kludge: There's no explicit mechanism provided by sys/core.h to @@ -78,7 +80,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ it won't be encountered in core-dumps from older HP-UX's) is harmless. */ #if !defined(CORE_ANON_SHMEM) -#define CORE_ANON_SHMEM 0x00000200 /* anonymous shared memory */ +#define CORE_ANON_SHMEM 0x00000200 /* anonymous shared memory */ #endif /* These are stored in the bfd's tdata */ @@ -89,7 +91,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ struct hpux_core_struct { int sig; - int lwpid; /* Kernel thread ID. */ + int lwpid; /* Kernel thread ID. */ unsigned long user_tid; /* User thread ID. */ char cmd[MAXCOMLEN + 1]; }; @@ -99,29 +101,20 @@ struct hpux_core_struct #define core_command(bfd) (core_hdr(bfd)->cmd) #define core_kernel_thread_id(bfd) (core_hdr(bfd)->lwpid) #define core_user_thread_id(bfd) (core_hdr(bfd)->user_tid) +#define hpux_core_core_file_matches_executable_p generic_core_file_matches_executable_p +#define hpux_core_core_file_pid _bfd_nocore_core_file_pid -static asection *make_bfd_asection - PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, - unsigned int)); -static const bfd_target *hpux_core_core_file_p - PARAMS ((bfd *)); -static char *hpux_core_core_file_failing_command - PARAMS ((bfd *)); -static int hpux_core_core_file_failing_signal - PARAMS ((bfd *)); -static bfd_boolean hpux_core_core_file_matches_executable_p - PARAMS ((bfd *, bfd *)); -static void swap_abort - PARAMS ((void)); +static asection *make_bfd_asection (bfd *, const char *, flagword, + bfd_size_type, bfd_vma, unsigned int); +static bfd_cleanup hpux_core_core_file_p (bfd *); +static char *hpux_core_core_file_failing_command (bfd *); +static int hpux_core_core_file_failing_signal (bfd *); +static void swap_abort (void); static asection * -make_bfd_asection (abfd, name, flags, size, vma, alignment_power) - bfd *abfd; - const char *name; - flagword flags; - bfd_size_type size; - bfd_vma vma; - unsigned int alignment_power; +make_bfd_asection (bfd *abfd, const char *name, flagword flags, + bfd_size_type size, bfd_vma vma, + unsigned int alignment_power) { asection *asect; char *newname; @@ -132,11 +125,10 @@ make_bfd_asection (abfd, name, flags, size, vma, alignment_power) strcpy (newname, name); - asect = bfd_make_section_anyway (abfd, newname); + asect = bfd_make_section_anyway_with_flags (abfd, newname, flags); if (!asect) return NULL; - asect->flags = flags; asect->size = size; asect->vma = vma; asect->filepos = bfd_tell (abfd); @@ -145,6 +137,17 @@ make_bfd_asection (abfd, name, flags, size, vma, alignment_power) return asect; } +/* Return true if the given core file section corresponds to a thread, + based on its name. */ + +static int +thread_section_p (bfd *abfd ATTRIBUTE_UNUSED, + asection *sect, + void *obj ATTRIBUTE_UNUSED) +{ + return CONST_STRNEQ (sect->name, ".reg/"); +} + /* this function builds a bfd target if the file is a corefile. It returns null or 0 if it finds out thaat it is not a core file. The way it checks this is by looking for allowed 'type' field values. @@ -154,9 +157,8 @@ make_bfd_asection (abfd, name, flags, size, vma, alignment_power) in which the core file is generated by some non-hpux application. (I am just guessing here!) */ -static const bfd_target * -hpux_core_core_file_p (abfd) - bfd *abfd; +static bfd_cleanup +hpux_core_core_file_p (bfd *abfd) { int good_sections = 0; int unknown_sections = 0; @@ -181,7 +183,7 @@ hpux_core_core_file_p (abfd) case CORE_FORMAT: /* Just skip this. */ bfd_seek (abfd, (file_ptr) core_header.len, SEEK_CUR); - good_sections++; + good_sections++; break; case CORE_EXEC: { @@ -190,7 +192,7 @@ hpux_core_core_file_p (abfd) abfd) != core_header.len) break; strncpy (core_command (abfd), proc_exec.cmd, MAXCOMLEN + 1); - good_sections++; + good_sections++; } break; case CORE_PROC: @@ -198,73 +200,76 @@ hpux_core_core_file_p (abfd) struct proc_info proc_info; char secname[100]; /* Of arbitrary size, but plenty large. */ - /* We need to read this section, 'cause we need to determine - whether the core-dumped app was threaded before we create - any .reg sections. */ + /* We need to read this section, 'cause we need to determine + whether the core-dumped app was threaded before we create + any .reg sections. */ if (bfd_bread (&proc_info, (bfd_size_type) core_header.len, abfd) != core_header.len) break; - /* However, we also want to create those sections with the - file positioned at the start of the record, it seems. */ - if (bfd_seek (abfd, (file_ptr) -core_header.len, SEEK_CUR) != 0) - break; + /* However, we also want to create those sections with the + file positioned at the start of the record, it seems. */ + if (bfd_seek (abfd, -((file_ptr) core_header.len), SEEK_CUR) != 0) + break; #if defined(PROC_INFO_HAS_THREAD_ID) - core_kernel_thread_id (abfd) = proc_info.lwpid; - core_user_thread_id (abfd) = proc_info.user_tid; + core_kernel_thread_id (abfd) = proc_info.lwpid; + core_user_thread_id (abfd) = proc_info.user_tid; #else - core_kernel_thread_id (abfd) = 0; - core_user_thread_id (abfd) = 0; + core_kernel_thread_id (abfd) = 0; + core_user_thread_id (abfd) = 0; #endif - /* If the program was unthreaded, then we'll just create a - .reg section. - - If the program was threaded, then we'll create .reg/XXXXX - section for each thread, where XXXXX is a printable - representation of the kernel thread id. We'll also - create a .reg section for the thread that was running - and signalled at the time of the core-dump (i.e., this - is effectively an alias, needed to keep GDB happy.) - - Note that we use `.reg/XXXXX' as opposed to '.regXXXXX' - because GDB expects that .reg2 will be the floating- - point registers. */ - if (core_kernel_thread_id (abfd) == 0) - { - if (!make_bfd_asection (abfd, ".reg", - SEC_HAS_CONTENTS, - core_header.len, - (int) &proc_info - (int) & proc_info.hw_regs, - 2)) + /* If the program was unthreaded, then we'll just create a + .reg section. + + If the program was threaded, then we'll create .reg/XXXXX + section for each thread, where XXXXX is a printable + representation of the kernel thread id. We'll also + create a .reg section for the thread that was running + and signalled at the time of the core-dump (i.e., this + is effectively an alias, needed to keep GDB happy.) + + Note that we use `.reg/XXXXX' as opposed to '.regXXXXX' + because GDB expects that .reg2 will be the floating- + point registers. */ + if (core_kernel_thread_id (abfd) == 0) + { + if (!make_bfd_asection (abfd, ".reg", + SEC_HAS_CONTENTS, + core_header.len, + (bfd_vma) offsetof (struct proc_info, + hw_regs), + 2)) goto fail; - } - else - { - /* There are threads. Is this the one that caused the - core-dump? We'll claim it was the running thread. */ - if (proc_info.sig != -1) - { + } + else + { + /* There are threads. Is this the one that caused the + core-dump? We'll claim it was the running thread. */ + if (proc_info.sig != -1) + { if (!make_bfd_asection (abfd, ".reg", SEC_HAS_CONTENTS, core_header.len, - (int) &proc_info - (int) & proc_info.hw_regs, + (bfd_vma)offsetof (struct proc_info, + hw_regs), 2)) goto fail; - } - /* We always make one of these sections, for every thread. */ - sprintf (secname, ".reg/%d", core_kernel_thread_id (abfd)); - if (!make_bfd_asection (abfd, secname, - SEC_HAS_CONTENTS, - core_header.len, - (int) &proc_info - (int) & proc_info.hw_regs, - 2)) + } + /* We always make one of these sections, for every thread. */ + sprintf (secname, ".reg/%d", core_kernel_thread_id (abfd)); + if (!make_bfd_asection (abfd, secname, + SEC_HAS_CONTENTS, + core_header.len, + (bfd_vma) offsetof (struct proc_info, + hw_regs), + 2)) goto fail; - } + } core_signal (abfd) = proc_info.sig; - if (bfd_seek (abfd, (file_ptr) core_header.len, SEEK_CUR) != 0) - break; - good_sections++; + if (bfd_seek (abfd, (file_ptr) core_header.len, SEEK_CUR) != 0) + break; + good_sections++; } break; @@ -281,26 +286,49 @@ hpux_core_core_file_p (abfd) goto fail; bfd_seek (abfd, (file_ptr) core_header.len, SEEK_CUR); - good_sections++; + good_sections++; break; case CORE_NONE: - /* Let's not punt if we encounter a section of unknown - type. Rather, let's make a note of it. If we later - see that there were also "good" sections, then we'll - declare that this a core file, but we'll also warn that - it may be incompatible with this gdb. - */ + /* Let's not punt if we encounter a section of unknown + type. Rather, let's make a note of it. If we later + see that there were also "good" sections, then we'll + declare that this a core file, but we'll also warn that + it may be incompatible with this gdb. + */ unknown_sections++; - break; + break; - default: + default: goto fail; /*unrecognized core file type */ } } /* OK, we believe you. You're a core file (sure, sure). */ + /* On HP/UX, we sometimes encounter core files where none of the threads + was found to be the running thread (ie the signal was set to -1 for + all threads). This happens when the program was aborted externally + via a TT_CORE ttrace system call. In that case, we just pick one + thread at random to be the active thread. */ + if (core_kernel_thread_id (abfd) != 0 + && bfd_get_section_by_name (abfd, ".reg") == NULL) + { + asection *asect = bfd_sections_find_if (abfd, thread_section_p, NULL); + asection *reg_sect; + + if (asect != NULL) + { + reg_sect = make_bfd_asection (abfd, ".reg", asect->flags, + asect->size, asect->vma, + asect->alignment_power); + if (reg_sect == NULL) + goto fail; + + reg_sect->filepos = asect->filepos; + } + } + /* Were there sections of unknown type? If so, yet there were at least some complete sections of known type, then, issue a warning. Possibly the core file was generated on a version @@ -308,11 +336,13 @@ hpux_core_core_file_p (abfd) built. */ if ((unknown_sections > 0) && (good_sections > 0)) - (*_bfd_error_handler) - ("%s appears to be a core file,\nbut contains unknown sections. It may have been created on an incompatible\nversion of HP-UX. As a result, some information may be unavailable.\n", - abfd->filename); + _bfd_error_handler + ("%pB appears to be a core file,\nbut contains unknown sections." + " It may have been created on an incompatible\nversion of HP-UX." + " As a result, some information may be unavailable.\n", + abfd); - return abfd->xvec; + return _bfd_no_cleanup; fail: bfd_release (abfd, core_hdr (abfd)); @@ -322,30 +352,21 @@ hpux_core_core_file_p (abfd) } static char * -hpux_core_core_file_failing_command (abfd) - bfd *abfd; +hpux_core_core_file_failing_command (bfd *abfd) { return core_command (abfd); } static int -hpux_core_core_file_failing_signal (abfd) - bfd *abfd; +hpux_core_core_file_failing_signal (bfd *abfd) { return core_signal (abfd); } -static bfd_boolean -hpux_core_core_file_matches_executable_p (core_bfd, exec_bfd) - bfd *core_bfd ATTRIBUTE_UNUSED; - bfd *exec_bfd ATTRIBUTE_UNUSED; -{ - return TRUE; /* FIXME, We have no way of telling at this point */ -} /* If somebody calls any byte-swapping routines, shoot them. */ static void -swap_abort () +swap_abort (void) { abort(); /* This way doesn't require any declaration for ANSI to fuck up */ } @@ -357,7 +378,7 @@ swap_abort () #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort) #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort) -const bfd_target hpux_core_vec = +const bfd_target core_hpux_vec = { "hpux-core", bfd_target_unknown_flavour, @@ -367,9 +388,10 @@ const bfd_target hpux_core_vec = HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - 0, /* symbol prefix */ - ' ', /* ar_pad_char */ - 16, /* ar_max_namelen */ + 0, /* symbol prefix */ + ' ', /* ar_pad_char */ + 16, /* ar_max_namelen */ + 0, /* match priority. */ NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */ NO_GET, NO_GETS, NO_PUT, /* 32 bit data */ NO_GET, NO_GETS, NO_PUT, /* 16 bit data */ @@ -384,12 +406,16 @@ const bfd_target hpux_core_vec = hpux_core_core_file_p /* a core file */ }, { /* bfd_set_format */ - bfd_false, bfd_false, - bfd_false, bfd_false + _bfd_bool_bfd_false_error, + _bfd_bool_bfd_false_error, + _bfd_bool_bfd_false_error, + _bfd_bool_bfd_false_error }, { /* bfd_write_contents */ - bfd_false, bfd_false, - bfd_false, bfd_false + _bfd_bool_bfd_false_error, + _bfd_bool_bfd_false_error, + _bfd_bool_bfd_false_error, + _bfd_bool_bfd_false_error }, BFD_JUMP_TABLE_GENERIC (_bfd_generic), @@ -404,5 +430,5 @@ const bfd_target hpux_core_vec = NULL, - (PTR) 0 /* backend_data */ + NULL /* backend_data */ };