From: Mark Kettenis Date: Sun, 1 May 2005 16:04:24 +0000 (+0000) Subject: * somsolib.c, somsolib.h: Remove files. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e908eab4d89b8f898dc1410895f6e39dc74ed6ad;p=binutils-gdb.git * somsolib.c, somsolib.h: Remove files. * Makefile.in (somsolib_h): Remove. (somsolib.o): Remove dependency. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index c2208572d4c..55808dd3640 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,9 @@ 2005-05-01 Mark Kettenis + * somsolib.c, somsolib.h: Remove files. + * Makefile.in (somsolib_h): Remove. + (somsolib.o): Remove dependency. + * fbsd-nat.c: Include . (fbsd_pid_to_exec_file): Use KERN_PROC_PATHNAME sysctl if available. Plug memory leak. Fixes PR gdb/1922. diff --git a/gdb/Makefile.in b/gdb/Makefile.in index 053e722b79f..4bf5cecf36b 100644 --- a/gdb/Makefile.in +++ b/gdb/Makefile.in @@ -773,7 +773,6 @@ solib_pa64_h = solib-pa64.h solib_som_h = solib-som.h solib_svr4_h = solib-svr4.h solist_h = solist.h -somsolib_h = somsolib.h source_h = source.h sparc64_tdep_h = sparc64-tdep.h $(sparc_tdep_h) sparc_nat_h = sparc-nat.h @@ -2553,10 +2552,6 @@ somread.o: somread.c $(defs_h) $(bfd_h) $(symtab_h) $(symfile_h) \ $(objfiles_h) $(buildsym_h) $(stabsread_h) $(gdb_stabs_h) \ $(complaints_h) $(gdb_string_h) $(demangle_h) $(som_h) $(libhppa_h) \ $(solib_som_h) -somsolib.o: somsolib.c $(defs_h) $(frame_h) $(bfd_h) $(som_h) $(libhppa_h) \ - $(gdbcore_h) $(symtab_h) $(breakpoint_h) $(symfile_h) $(objfiles_h) \ - $(inferior_h) $(gdb_stabs_h) $(gdb_stat_h) $(gdbcmd_h) $(language_h) \ - $(regcache_h) $(gdb_assert_h) $(exec_h) $(hppa_tdep_h) source.o: source.c $(defs_h) $(symtab_h) $(expression_h) $(language_h) \ $(command_h) $(source_h) $(gdbcmd_h) $(frame_h) $(value_h) \ $(gdb_string_h) $(gdb_stat_h) $(gdbcore_h) $(gdb_regex_h) \ diff --git a/gdb/somsolib.c b/gdb/somsolib.c deleted file mode 100644 index 291ecadb8f3..00000000000 --- a/gdb/somsolib.c +++ /dev/null @@ -1,1609 +0,0 @@ -/* Handle HP SOM shared libraries for GDB, the GNU Debugger. - - Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, - 2003, 2004 Free Software Foundation, Inc. - - This file is part of GDB. - - 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 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. - - Written by the Center for Software Science at the Univerity of Utah - and by Cygnus Support. */ - - -#include "defs.h" - -#include "frame.h" -#include "bfd.h" -#include "som.h" -#include "libhppa.h" -#include "gdbcore.h" -#include "symtab.h" -#include "breakpoint.h" -#include "symfile.h" -#include "objfiles.h" -#include "inferior.h" -#include "gdb-stabs.h" -#include "gdb_stat.h" -#include "gdbcmd.h" -#include "language.h" -#include "regcache.h" -#include "gdb_assert.h" -#include "exec.h" -#include "hppa-tdep.h" - -#include - -#ifndef O_BINARY -#define O_BINARY 0 -#endif - -#ifndef SHL_LOAD -#define SHL_LOAD 4 -#endif - -#ifndef SHL_UNLOAD -#define SHL_UNLOAD 8 -#endif - -/* Uncomment this to turn on some debugging output. - */ - -/* #define SOLIB_DEBUG - */ - -/* This lives in hppa-tdep.c. */ -extern struct unwind_table_entry *find_unwind_entry (CORE_ADDR pc); - -/* These ought to be defined in some public interface, but aren't. They - define the meaning of the various bits in the distinguished __dld_flags - variable that is declared in every debuggable a.out on HP-UX, and that - is shared between the debugger and the dynamic linker. - */ -#define DLD_FLAGS_MAPPRIVATE 0x1 -#define DLD_FLAGS_HOOKVALID 0x2 -#define DLD_FLAGS_LISTVALID 0x4 -#define DLD_FLAGS_BOR_ENABLE 0x8 - -/* TODO: - - * Support for hpux8 dynamic linker. */ - -/* The basic structure which describes a dynamically loaded object. This - data structure is private to the dynamic linker and isn't found in - any HPUX include file. */ - -struct som_solib_mapped_entry - { - /* The name of the library. */ - char *name; - - /* Version of this structure (it is expected to change again in hpux10). */ - unsigned char struct_version; - - /* Binding mode for this library. */ - unsigned char bind_mode; - - /* Version of this library. */ - short library_version; - - /* Start of text address, - * link-time text location (length of text area), - * end of text address. */ - CORE_ADDR text_addr; - CORE_ADDR text_link_addr; - CORE_ADDR text_end; - - /* Start of data, start of bss and end of data. */ - CORE_ADDR data_start; - CORE_ADDR bss_start; - CORE_ADDR data_end; - - /* Value of linkage pointer (%r19). */ - CORE_ADDR got_value; - - /* Next entry. */ - struct som_solib_mapped_entry *next; - - /* There are other fields, but I don't have information as to what is - contained in them. */ - - /* For versions from HPUX-10.30 and up */ - - /* Address in target of offset from thread-local register of - * start of this thread's data. I.e., the first thread-local - * variable in this shared library starts at *(tsd_start_addr) - * from that area pointed to by cr27 (mpsfu_hi). - * - * We do the indirection as soon as we read it, so from then - * on it's the offset itself. - */ - CORE_ADDR tsd_start_addr; - - /* Following this are longwords holding: - - * ?, ?, ?, ptr to -1, ptr to-1, ptr to lib name (leaf name), - * ptr to __data_start, ptr to __data_end - */ - - - }; - -/* A structure to keep track of all the known shared objects. */ -struct so_list - { - struct som_solib_mapped_entry som_solib; - struct objfile *objfile; - bfd *abfd; - struct section_table *sections; - struct section_table *sections_end; -/* elz: added this field to store the address in target space (in the - library) of the library descriptor (handle) which we read into - som_solib_mapped_entry structure */ - CORE_ADDR solib_addr; - struct so_list *next; - - }; - -static struct so_list *so_list_head; - - -/* This is the cumulative size in bytes of the symbol tables of all - shared objects on the so_list_head list. (When we say size, here - we mean of the information before it is brought into memory and - potentially expanded by GDB.) When adding a new shlib, this value - is compared against the threshold size, held by auto_solib_limit - (in megabytes). If adding symbols for the new shlib would cause - the total size to exceed the threshold, then the new shlib's - symbols are not loaded. */ -static LONGEST som_solib_total_st_size; - -/* When the threshold is reached for any shlib, we refuse to add - symbols for subsequent shlibs, even if those shlibs' symbols would - be small enough to fit under the threshold. (Although this may - result in one, early large shlib preventing the loading of later, - smalller shlibs' symbols, it allows us to issue one informational - message. The alternative, to issue a message for each shlib whose - symbols aren't loaded, could be a big annoyance where the threshold - is exceeded due to a very large number of shlibs.) - */ -static int som_solib_st_size_threshold_exceeded; - -/* These addresses should be filled in by som_solib_create_inferior_hook. - They are also used elsewhere in this module. - */ -typedef struct - { - CORE_ADDR address; - struct unwind_table_entry *unwind; - } -addr_and_unwind_t; - -/* When adding fields, be sure to clear them in _initialize_som_solib. */ -static struct - { - int is_valid; - addr_and_unwind_t hook; - addr_and_unwind_t hook_stub; - addr_and_unwind_t load; - addr_and_unwind_t load_stub; - addr_and_unwind_t unload; - addr_and_unwind_t unload2; - addr_and_unwind_t unload_stub; - } -dld_cache; - - - -static void som_sharedlibrary_info_command (char *, int); - -static void som_solib_sharedlibrary_command (char *, int); - -static LONGEST -som_solib_sizeof_symbol_table (char *filename) -{ - bfd *abfd; - int desc; - char *absolute_name; - LONGEST st_size = (LONGEST) 0; - asection *sect; - - /* We believe that filename was handed to us by the dynamic linker, and - is therefore always an absolute path. - */ - desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename, - O_RDONLY | O_BINARY, 0, &absolute_name); - if (desc < 0) - { - perror_with_name (filename); - } - filename = absolute_name; - - abfd = bfd_fdopenr (filename, gnutarget, desc); - if (!abfd) - { - close (desc); - make_cleanup (xfree, filename); - error (_("\"%s\": can't open to read symbols: %s."), filename, - bfd_errmsg (bfd_get_error ())); - } - - if (!bfd_check_format (abfd, bfd_object)) /* Reads in section info */ - { - bfd_close (abfd); /* This also closes desc */ - make_cleanup (xfree, filename); - error (_("\"%s\": can't read symbols: %s."), filename, - bfd_errmsg (bfd_get_error ())); - } - - /* Sum the sizes of the various sections that compose debug info. */ - - /* This contains non-DOC information. */ - sect = bfd_get_section_by_name (abfd, "$DEBUG$"); - if (sect) - st_size += (LONGEST) bfd_section_size (abfd, sect); - - /* This contains DOC information. */ - sect = bfd_get_section_by_name (abfd, "$PINFO$"); - if (sect) - st_size += (LONGEST) bfd_section_size (abfd, sect); - - bfd_close (abfd); /* This also closes desc */ - xfree (filename); - - /* Unfortunately, just summing the sizes of various debug info - sections isn't a very accurate measurement of how much heap - space the debugger will need to hold them. It also doesn't - account for space needed by linker (aka "minimal") symbols. - - Anecdotal evidence suggests that just summing the sizes of - debug-info-related sections understates the heap space needed - to represent it internally by about an order of magnitude. - - Since it's not exactly brain surgery we're doing here, rather - than attempt to more accurately measure the size of a shlib's - symbol table in GDB's heap, we'll just apply a 10x fudge- - factor to the debug info sections' size-sum. No, this doesn't - account for minimal symbols in non-debuggable shlibs. But it - all roughly washes out in the end. - */ - return st_size * (LONGEST) 10; -} - - -static void -som_solib_add_solib_objfile (struct so_list *so, char *name, int from_tty, - CORE_ADDR text_addr) -{ - struct hppa_objfile_private *obj_private; - struct obj_section *s; - - so->objfile = symbol_file_add (name, from_tty, NULL, 0, OBJF_SHARED); - so->abfd = so->objfile->obfd; - - /* syms_from_objfile has bizarre section offset code, - so I do my own right here. */ - for (s = so->objfile->sections; s < so->objfile->sections_end; s++) - { - flagword aflag = bfd_get_section_flags(so->abfd, s->the_bfd_section); - if (aflag & SEC_CODE) - { - s->addr += so->som_solib.text_addr - so->som_solib.text_link_addr; - s->endaddr += so->som_solib.text_addr - so->som_solib.text_link_addr; - } - else if (aflag & SEC_DATA) - { - s->addr += so->som_solib.data_start; - s->endaddr += so->som_solib.data_start; - } - else - ; - } - - /* Mark this as a shared library and save private data. - */ - so->objfile->flags |= OBJF_SHARED; - - obj_private = (struct hppa_objfile_private *) - objfile_data (so->objfile, hppa_objfile_priv_data); - if (obj_private == NULL) - { - obj_private = (struct hppa_objfile_private *) - obstack_alloc (&so->objfile->objfile_obstack, - sizeof (struct hppa_objfile_private)); - set_objfile_data (so->objfile, hppa_objfile_priv_data, obj_private); - obj_private->unwind_info = NULL; - obj_private->so_info = NULL; - } - - obj_private->so_info = so; - - if (!bfd_check_format (so->abfd, bfd_object)) - { - error (_("\"%s\": not in executable format: %s."), - name, bfd_errmsg (bfd_get_error ())); - } -} - - -static void -som_solib_load_symbols (struct so_list *so, char *name, int from_tty, - CORE_ADDR text_addr, struct target_ops *target) -{ - struct section_table *p; - int status; - char buf[4]; - CORE_ADDR presumed_data_start; - -#ifdef SOLIB_DEBUG - printf ("--Adding symbols for shared library \"%s\"\n", name); -#endif - - som_solib_add_solib_objfile (so, name, from_tty, text_addr); - - /* Now we need to build a section table for this library since - we might be debugging a core file from a dynamically linked - executable in which the libraries were not privately mapped. */ - if (build_section_table (so->abfd, - &so->sections, - &so->sections_end)) - { - error (_("Unable to build section table for shared library\n.")); - return; - } - - /* Relocate all the sections based on where they got loaded. */ - for (p = so->sections; p < so->sections_end; p++) - { - if (p->the_bfd_section->flags & SEC_CODE) - { - p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT (so->objfile)); - p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT (so->objfile)); - } - else if (p->the_bfd_section->flags & SEC_DATA) - { - p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA (so->objfile)); - p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA (so->objfile)); - } - } - - /* Now see if we need to map in the text and data for this shared - library (for example debugging a core file which does not use - private shared libraries.). - - Carefully peek at the first text address in the library. If the - read succeeds, then the libraries were privately mapped and were - included in the core dump file. - - If the peek failed, then the libraries were not privately mapped - and are not in the core file, we'll have to read them in ourselves. */ - status = target_read_memory (text_addr, buf, 4); - if (status != 0) - { - int old, new; - - new = so->sections_end - so->sections; - - old = target_resize_to_sections (target, new); - - /* Copy over the old data before it gets clobbered. */ - memcpy ((char *) (target->to_sections + old), - so->sections, - ((sizeof (struct section_table)) * new)); - } -} - - -/* FIXME: cagney/2003-02-01: This just isn't right. Given an address - within the target's address space, this converts the value into an - address within the host's (i.e., GDB's) address space. Given that - the host/target address spaces are separate, this can't be right. */ - -static void * -hpux_address_to_host_pointer_hack (CORE_ADDR addr) -{ - void *ptr; - - gdb_assert (sizeof (ptr) == TYPE_LENGTH (builtin_type_void_data_ptr)); - ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr); - return ptr; -} - -/* Add symbols from shared libraries into the symtab list, unless the - size threshold specified by auto_solib_limit (in megabytes) would - be exceeded. */ - -void -som_solib_add (char *arg_string, int from_tty, struct target_ops *target, int readsyms) -{ - struct minimal_symbol *msymbol; - struct so_list *so_list_tail; - CORE_ADDR addr; - asection *shlib_info; - int status; - unsigned int dld_flags; - char buf[4], *re_err; - int threshold_warning_given = 0; - - /* First validate our arguments. */ - re_err = re_comp (arg_string ? arg_string : "."); - if (re_err != NULL) - { - error (_("Invalid regexp: %s"), re_err); - } - - /* If we're debugging a core file, or have attached to a running - process, then som_solib_create_inferior_hook will not have been - called. - - We need to first determine if we're dealing with a dynamically - linked executable. If not, then return without an error or warning. - - We also need to examine __dld_flags to determine if the shared library - list is valid and to determine if the libraries have been privately - mapped. */ - if (symfile_objfile == NULL) - return; - - /* First see if the objfile was dynamically linked. */ - shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, "$SHLIB_INFO$"); - if (!shlib_info) - return; - - /* It's got a $SHLIB_INFO$ section, make sure it's not empty. */ - if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0) - return; - - msymbol = lookup_minimal_symbol ("__dld_flags", NULL, NULL); - if (msymbol == NULL) - error (_("Unable to find __dld_flags symbol in object file.")); - - addr = SYMBOL_VALUE_ADDRESS (msymbol); - /* Read the current contents. */ - status = target_read_memory (addr, buf, 4); - if (status != 0) - error (_("Unable to read __dld_flags.")); - dld_flags = extract_unsigned_integer (buf, 4); - - /* __dld_list may not be valid. If not, then we punt, warning the user if - we were called as a result of the add-symfile command. - */ - if ((dld_flags & DLD_FLAGS_LISTVALID) == 0) - { - if (from_tty) - error (_("__dld_list is not valid according to __dld_flags.")); - return; - } - - /* If the libraries were not mapped private, warn the user. */ - if ((dld_flags & DLD_FLAGS_MAPPRIVATE) == 0) - warning (_("\ -The shared libraries were not privately mapped; setting a breakpoint\n\ -in a shared library will not work until you rerun the program.")); - - msymbol = lookup_minimal_symbol ("__dld_list", NULL, NULL); - if (!msymbol) - { - /* Older crt0.o files (hpux8) don't have __dld_list as a symbol, - but the data is still available if you know where to look. */ - msymbol = lookup_minimal_symbol ("__dld_flags", NULL, NULL); - if (!msymbol) - error (_("Unable to find dynamic library list.")); - addr = SYMBOL_VALUE_ADDRESS (msymbol) - 8; - } - else - addr = SYMBOL_VALUE_ADDRESS (msymbol); - - status = target_read_memory (addr, buf, 4); - if (status != 0) - error (_("Unable to find dynamic library list.")); - - addr = extract_unsigned_integer (buf, 4); - - /* If addr is zero, then we're using an old dynamic loader which - doesn't maintain __dld_list. We'll have to use a completely - different approach to get shared library information. */ - if (addr == 0) - goto old_dld; - - /* Using the information in __dld_list is the preferred method - to get at shared library information. It doesn't depend on - any functions in /opt/langtools/lib/end.o and has a chance of working - with hpux10 when it is released. */ - status = target_read_memory (addr, buf, 4); - if (status != 0) - error (_("Unable to find dynamic library list.")); - - /* addr now holds the address of the first entry in the dynamic - library list. */ - addr = extract_unsigned_integer (buf, 4); - - /* Now that we have a pointer to the dynamic library list, walk - through it and add the symbols for each library. */ - - so_list_tail = so_list_head; - /* Find the end of the list of shared objects. */ - while (so_list_tail && so_list_tail->next) - so_list_tail = so_list_tail->next; - -#ifdef SOLIB_DEBUG - printf ("--About to read shared library list data\n"); -#endif - - /* "addr" will always point to the base of the - * current data entry describing the current - * shared library. - */ - while (1) - { - CORE_ADDR name_addr, text_addr; - unsigned int name_len; - char *name; - struct so_list *new_so; - struct so_list *so_list = so_list_head; - struct stat statbuf; - LONGEST st_size; - int is_main_program; - - if (addr == 0) - break; - - /* Get a pointer to the name of this library. */ - status = target_read_memory (addr, buf, 4); - if (status != 0) - goto err; - - name_addr = extract_unsigned_integer (buf, 4); - name_len = 0; - while (1) - { - target_read_memory (name_addr + name_len, buf, 1); - if (status != 0) - goto err; - - name_len++; - if (*buf == '\0') - break; - } - name = alloca (name_len); - status = target_read_memory (name_addr, name, name_len); - if (status != 0) - goto err; - - /* See if we've already loaded something with this name. */ - while (so_list) - { - if (!strcmp (so_list->som_solib.name, name)) - break; - so_list = so_list->next; - } - - /* See if the file exists. If not, give a warning, but don't - die. */ - status = stat (name, &statbuf); - if (status == -1) - { - warning (_("Can't find file %s referenced in dld_list."), name); - - status = target_read_memory (addr + 36, buf, 4); - if (status != 0) - goto err; - - addr = (CORE_ADDR) extract_unsigned_integer (buf, 4); - continue; - } - - /* If we've already loaded this one or it's the main program, skip it. */ - is_main_program = (strcmp (name, symfile_objfile->name) == 0); - if (so_list || is_main_program) - { - /* This is the "next" pointer in the strcuture. - */ - status = target_read_memory (addr + 36, buf, 4); - if (status != 0) - goto err; - - addr = (CORE_ADDR) extract_unsigned_integer (buf, 4); - - /* Record the main program's symbol table size. */ - if (is_main_program && !so_list) - { - st_size = som_solib_sizeof_symbol_table (name); - som_solib_total_st_size += st_size; - } - - /* Was this a shlib that we noted but didn't load the symbols for? - If so, were we invoked this time from the command-line, via - a 'sharedlibrary' or 'add-symbol-file' command? If yes to - both, we'd better load the symbols this time. - */ - if (from_tty && so_list && !is_main_program && (so_list->objfile == NULL)) - som_solib_load_symbols (so_list, - name, - from_tty, - so_list->som_solib.text_addr, - target); - - continue; - } - - name = obsavestring (name, name_len - 1, - &symfile_objfile->objfile_obstack); - - status = target_read_memory (addr + 8, buf, 4); - if (status != 0) - goto err; - - text_addr = extract_unsigned_integer (buf, 4); - - new_so = (struct so_list *) xmalloc (sizeof (struct so_list)); - memset ((char *) new_so, 0, sizeof (struct so_list)); - if (so_list_head == NULL) - { - so_list_head = new_so; - so_list_tail = new_so; - } - else - { - so_list_tail->next = new_so; - so_list_tail = new_so; - } - - /* Fill in all the entries in GDB's shared library list. - */ - - new_so->solib_addr = addr; - new_so->som_solib.name = name; - status = target_read_memory (addr + 4, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.struct_version = extract_unsigned_integer (buf + 3, 1); - new_so->som_solib.bind_mode = extract_unsigned_integer (buf + 2, 1); - /* Following is "high water mark", highest version number - * seen, rather than plain version number. - */ - new_so->som_solib.library_version = extract_unsigned_integer (buf, 2); - new_so->som_solib.text_addr = text_addr; - - /* Q: What about longword at "addr + 8"? - * A: It's read above, out of order, into "text_addr". - */ - - status = target_read_memory (addr + 12, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.text_link_addr = extract_unsigned_integer (buf, 4); - - status = target_read_memory (addr + 16, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.text_end = extract_unsigned_integer (buf, 4); - - status = target_read_memory (addr + 20, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.data_start = extract_unsigned_integer (buf, 4); - - status = target_read_memory (addr + 24, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.bss_start = extract_unsigned_integer (buf, 4); - - status = target_read_memory (addr + 28, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.data_end = extract_unsigned_integer (buf, 4); - - status = target_read_memory (addr + 32, buf, 4); - if (status != 0) - goto err; - - new_so->som_solib.got_value = extract_unsigned_integer (buf, 4); - - status = target_read_memory (addr + 36, buf, 4); - if (status != 0) - goto err; - - /* FIXME: cagney/2003-02-01: I think som_solib.next should be a - CORE_ADDR. */ - new_so->som_solib.next = - hpux_address_to_host_pointer_hack (extract_unsigned_integer (buf, 4)); - - /* Note that we don't re-set "addr" to the next pointer - * until after we've read the trailing data. - */ - - status = target_read_memory (addr + 40, buf, 4); - new_so->som_solib.tsd_start_addr = extract_unsigned_integer (buf, 4); - if (status != 0) - goto err; - - /* Now indirect via that value! - */ - status = target_read_memory (new_so->som_solib.tsd_start_addr, buf, 4); - new_so->som_solib.tsd_start_addr = extract_unsigned_integer (buf, 4); - if (status != 0) - goto err; -#ifdef SOLIB_DEBUG - printf ("\n+ library \"%s\" is described at 0x%x\n", name, addr); - printf (" 'version' is %d\n", new_so->som_solib.struct_version); - printf (" 'bind_mode' is %d\n", new_so->som_solib.bind_mode); - printf (" 'library_version' is %d\n", new_so->som_solib.library_version); - printf (" 'text_addr' is 0x%x\n", new_so->som_solib.text_addr); - printf (" 'text_link_addr' is 0x%x\n", new_so->som_solib.text_link_addr); - printf (" 'text_end' is 0x%x\n", new_so->som_solib.text_end); - printf (" 'data_start' is 0x%x\n", new_so->som_solib.data_start); - printf (" 'bss_start' is 0x%x\n", new_so->som_solib.bss_start); - printf (" 'data_end' is 0x%x\n", new_so->som_solib.data_end); - printf (" 'got_value' is %x\n", new_so->som_solib.got_value); - printf (" 'next' is 0x%x\n", new_so->som_solib.next); - printf (" 'tsd_start_addr' is 0x%x\n", new_so->som_solib.tsd_start_addr); -#endif - - /* Go on to the next shared library descriptor. - */ - addr = (CORE_ADDR) new_so->som_solib.next; - - - - /* At this point, we have essentially hooked the shlib into the - "info share" command. However, we haven't yet loaded its - symbol table. We must now decide whether we ought to, i.e., - whether doing so would exceed the symbol table size threshold. - - If the threshold has just now been exceeded, then we'll issue - a warning message (which explains how to load symbols manually, - if the user so desires). - - If the threshold has just now or previously been exceeded, - we'll just add the shlib to the list of object files, but won't - actually load its symbols. (This is more useful than it might - sound, for it allows us to e.g., still load and use the shlibs' - unwind information for stack tracebacks.) - */ - - /* Note that we DON'T want to preclude the user from using the - add-symbol-file command! Thus, we only worry about the threshold - when we're invoked for other reasons. - */ - st_size = som_solib_sizeof_symbol_table (name); - som_solib_st_size_threshold_exceeded = - !from_tty && - auto_solib_limit > 0 && - readsyms && - ((st_size + som_solib_total_st_size) > (auto_solib_limit * (LONGEST) (1024 * 1024))); - - if (som_solib_st_size_threshold_exceeded) - { - if (!threshold_warning_given) - warning (_("\ -Symbols for some libraries have not been loaded, because doing so would\n\ -exceed the size threshold specified by auto-solib-limit.\n\ -To manually load symbols, use the 'sharedlibrary' command.\n\ -To raise the threshold, set auto-solib-limit to a larger value and rerun\n\ -the program.")); - threshold_warning_given = 1; - - /* We'll still make note of this shlib, even if we don't - read its symbols. This allows us to use its unwind - information well enough to know how to e.g., correctly - do a traceback from a PC within the shlib, even if we - can't symbolize those PCs... - */ - som_solib_add_solib_objfile (new_so, name, from_tty, text_addr); - continue; - } - - som_solib_total_st_size += st_size; - - /* This fills in new_so->objfile, among others. */ - som_solib_load_symbols (new_so, name, from_tty, text_addr, target); - } - -#ifdef SOLIB_DEBUG - printf ("--Done reading shared library data\n"); -#endif - - /* Getting new symbols may change our opinion about what is - frameless. */ - reinit_frame_cache (); - return; - -old_dld: - error (_("Debugging dynamic executables loaded via the hpux8 dld.sl is not supported.")); - -err: - error (_("Error while reading dynamic library list.")); -} - - -/* This hook gets called just before the first instruction in the - inferior process is executed. - - This is our opportunity to set magic flags in the inferior so - that GDB can be notified when a shared library is mapped in and - to tell the dynamic linker that a private copy of the library is - needed (so GDB can set breakpoints in the library). - - __dld_flags is the location of the magic flags; as of this implementation - there are 3 flags of interest: - - bit 0 when set indicates that private copies of the libraries are needed - bit 1 when set indicates that the callback hook routine is valid - bit 2 when set indicates that the dynamic linker should maintain the - __dld_list structure when loading/unloading libraries. - - Note that shared libraries are not mapped in at this time, so we have - run the inferior until the libraries are mapped in. Typically this - means running until the "_start" is called. */ - -void -som_solib_create_inferior_hook (void) -{ - struct minimal_symbol *msymbol; - unsigned int dld_flags, status, have_endo; - asection *shlib_info; - char buf[4]; - struct objfile *objfile; - CORE_ADDR anaddr; - - /* First, remove all the solib event breakpoints. Their addresses - may have changed since the last time we ran the program. */ - remove_solib_event_breakpoints (); - - if (symfile_objfile == NULL) - return; - - /* First see if the objfile was dynamically linked. */ - shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, "$SHLIB_INFO$"); - if (!shlib_info) - return; - - /* It's got a $SHLIB_INFO$ section, make sure it's not empty. */ - if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0) - return; - - have_endo = 0; - /* Slam the pid of the process into __d_pid. - - We used to warn when this failed, but that warning is only useful - on very old HP systems (hpux9 and older). The warnings are an - annoyance to users of modern systems and foul up the testsuite as - well. As a result, the warnings have been disabled. */ - msymbol = lookup_minimal_symbol ("__d_pid", NULL, symfile_objfile); - if (msymbol == NULL) - goto keep_going; - - anaddr = SYMBOL_VALUE_ADDRESS (msymbol); - store_unsigned_integer (buf, 4, PIDGET (inferior_ptid)); - status = target_write_memory (anaddr, buf, 4); - if (status != 0) - { - warning (_("Unable to write __d_pid")); - warning (_("Suggest linking with /opt/langtools/lib/end.o.")); - warning (_("GDB will be unable to track shl_load/shl_unload calls")); - goto keep_going; - } - - /* Get the value of _DLD_HOOK (an export stub) and put it in __dld_hook; - This will force the dynamic linker to call __d_trap when significant - events occur. - - Note that the above is the pre-HP-UX 9.0 behaviour. At 9.0 and above, - the dld provides an export stub named "__d_trap" as well as the - function named "__d_trap" itself, but doesn't provide "_DLD_HOOK". - We'll look first for the old flavor and then the new. - */ - msymbol = lookup_minimal_symbol ("_DLD_HOOK", NULL, symfile_objfile); - if (msymbol == NULL) - msymbol = lookup_minimal_symbol ("__d_trap", NULL, symfile_objfile); - if (msymbol == NULL) - { - warning (_("Unable to find _DLD_HOOK symbol in object file.")); - warning (_("Suggest linking with /opt/langtools/lib/end.o.")); - warning (_("GDB will be unable to track shl_load/shl_unload calls")); - goto keep_going; - } - anaddr = SYMBOL_VALUE_ADDRESS (msymbol); - dld_cache.hook.address = anaddr; - - /* Grrr, this might not be an export symbol! We have to find the - export stub. */ - ALL_OBJFILES (objfile) - { - struct unwind_table_entry *u; - struct minimal_symbol *msymbol2; - - /* What a crock. */ - msymbol2 = lookup_minimal_symbol_solib_trampoline (DEPRECATED_SYMBOL_NAME (msymbol), - objfile); - /* Found a symbol with the right name. */ - if (msymbol2) - { - struct unwind_table_entry *u; - /* It must be a shared library trampoline. */ - if (SYMBOL_TYPE (msymbol2) != mst_solib_trampoline) - continue; - - /* It must also be an export stub. */ - u = find_unwind_entry (SYMBOL_VALUE (msymbol2)); - if (!u || u->stub_unwind.stub_type != EXPORT) - continue; - - /* OK. Looks like the correct import stub. */ - anaddr = SYMBOL_VALUE (msymbol2); - dld_cache.hook_stub.address = anaddr; - } - } - store_unsigned_integer (buf, 4, anaddr); - - msymbol = lookup_minimal_symbol ("__dld_hook", NULL, symfile_objfile); - if (msymbol == NULL) - { - warning (_("Unable to find __dld_hook symbol in object file.")); - warning (_("Suggest linking with /opt/langtools/lib/end.o.")); - warning (_("GDB will be unable to track shl_load/shl_unload calls")); - goto keep_going; - } - anaddr = SYMBOL_VALUE_ADDRESS (msymbol); - status = target_write_memory (anaddr, buf, 4); - - /* Now set a shlib_event breakpoint at __d_trap so we can track - significant shared library events. */ - msymbol = lookup_minimal_symbol ("__d_trap", NULL, symfile_objfile); - if (msymbol == NULL) - { - warning (_("Unable to find __dld_d_trap symbol in object file.")); - warning (_("Suggest linking with /opt/langtools/lib/end.o.")); - warning (_("GDB will be unable to track shl_load/shl_unload calls")); - goto keep_going; - } - create_solib_event_breakpoint (SYMBOL_VALUE_ADDRESS (msymbol)); - - /* We have all the support usually found in end.o, so we can track - shl_load and shl_unload calls. */ - have_endo = 1; - -keep_going: - - /* Get the address of __dld_flags, if no such symbol exists, then we can - not debug the shared code. */ - msymbol = lookup_minimal_symbol ("__dld_flags", NULL, NULL); - if (msymbol == NULL) - error (_("Unable to find __dld_flags symbol in object file.")); - - anaddr = SYMBOL_VALUE_ADDRESS (msymbol); - - /* Read the current contents. */ - status = target_read_memory (anaddr, buf, 4); - if (status != 0) - error (_("Unable to read __dld_flags.")); - dld_flags = extract_unsigned_integer (buf, 4); - - /* Turn on the flags we care about. */ - dld_flags |= DLD_FLAGS_MAPPRIVATE; - if (have_endo) - dld_flags |= DLD_FLAGS_HOOKVALID; - store_unsigned_integer (buf, 4, dld_flags); - status = target_write_memory (anaddr, buf, 4); - if (status != 0) - error (_("Unable to write __dld_flags.")); - - /* Now find the address of _start and set a breakpoint there. - We still need this code for two reasons: - - * Not all sites have /opt/langtools/lib/end.o, so it's not always - possible to track the dynamic linker's events. - - * At this time no events are triggered for shared libraries - loaded at startup time (what a crock). */ - - msymbol = lookup_minimal_symbol ("_start", NULL, symfile_objfile); - if (msymbol == NULL) - error (_("Unable to find _start symbol in object file.")); - - anaddr = SYMBOL_VALUE_ADDRESS (msymbol); - - /* Make the breakpoint at "_start" a shared library event breakpoint. */ - create_solib_event_breakpoint (anaddr); - - /* Wipe out all knowledge of old shared libraries since their - mapping can change from one exec to another! */ - while (so_list_head) - { - struct so_list *temp; - - temp = so_list_head; - xfree (so_list_head); - so_list_head = temp->next; - } - clear_symtab_users (); -} - -/* This operation removes the "hook" between GDB and the dynamic linker, - which causes the dld to notify GDB of shared library events. - - After this operation completes, the dld will no longer notify GDB of - shared library events. To resume notifications, GDB must call - som_solib_create_inferior_hook. - - This operation does not remove any knowledge of shared libraries - of which GDB may already have been notified. - */ -void -som_solib_remove_inferior_hook (int pid) -{ - CORE_ADDR addr; - struct minimal_symbol *msymbol; - int status; - char dld_flags_buffer[4]; - unsigned int dld_flags_value; - struct cleanup *old_cleanups = save_inferior_ptid (); - - /* Ensure that we're really operating on the specified process. */ - inferior_ptid = pid_to_ptid (pid); - - /* We won't bother to remove the solib breakpoints from this process. - - In fact, on PA64 the breakpoint is hard-coded into the dld callback, - and thus we're not supposed to remove it. - - Rather, we'll merely clear the dld_flags bit that enables callbacks. - */ - msymbol = lookup_minimal_symbol ("__dld_flags", NULL, NULL); - - addr = SYMBOL_VALUE_ADDRESS (msymbol); - status = target_read_memory (addr, dld_flags_buffer, 4); - - dld_flags_value = extract_unsigned_integer (dld_flags_buffer, 4); - - dld_flags_value &= ~DLD_FLAGS_HOOKVALID; - store_unsigned_integer (dld_flags_buffer, 4, dld_flags_value); - status = target_write_memory (addr, dld_flags_buffer, 4); - - do_cleanups (old_cleanups); -} - - -/* This function creates a breakpoint on the dynamic linker hook, which - is called when e.g., a shl_load or shl_unload call is made. This - breakpoint will only trigger when a shl_load call is made. - - If filename is NULL, then loads of any dll will be caught. Else, - only loads of the file whose pathname is the string contained by - filename will be caught. - - Undefined behaviour is guaranteed if this function is called before - som_solib_create_inferior_hook. - */ -void -som_solib_create_catch_load_hook (int pid, int tempflag, char *filename, - char *cond_string) -{ - create_solib_load_event_breakpoint ("__d_trap", tempflag, - filename, cond_string); -} - -/* This function creates a breakpoint on the dynamic linker hook, which - is called when e.g., a shl_load or shl_unload call is made. This - breakpoint will only trigger when a shl_unload call is made. - - If filename is NULL, then unloads of any dll will be caught. Else, - only unloads of the file whose pathname is the string contained by - filename will be caught. - - Undefined behaviour is guaranteed if this function is called before - som_solib_create_inferior_hook. - */ -void -som_solib_create_catch_unload_hook (int pid, int tempflag, char *filename, - char *cond_string) -{ - create_solib_unload_event_breakpoint ("__d_trap", tempflag, - filename, cond_string); -} - -int -som_solib_have_load_event (int pid) -{ - CORE_ADDR event_kind; - - event_kind = read_register (HPPA_ARG0_REGNUM); - return (event_kind == SHL_LOAD); -} - -int -som_solib_have_unload_event (int pid) -{ - CORE_ADDR event_kind; - - event_kind = read_register (HPPA_ARG0_REGNUM); - return (event_kind == SHL_UNLOAD); -} - -static char * -som_solib_library_pathname (int pid) -{ - CORE_ADDR dll_handle_address; - CORE_ADDR dll_pathname_address; - struct som_solib_mapped_entry dll_descriptor; - char *p; - static char dll_pathname[1024]; - - /* Read the descriptor of this newly-loaded library. */ - dll_handle_address = read_register (HPPA_ARG1_REGNUM); - read_memory (dll_handle_address, (char *) &dll_descriptor, sizeof (dll_descriptor)); - - /* We can find a pointer to the dll's pathname within the descriptor. */ - dll_pathname_address = (CORE_ADDR) dll_descriptor.name; - - /* Read the pathname, one byte at a time. */ - p = dll_pathname; - for (;;) - { - char b; - read_memory (dll_pathname_address++, (char *) &b, 1); - *p++ = b; - if (b == '\0') - break; - } - - return dll_pathname; -} - -char * -som_solib_loaded_library_pathname (int pid) -{ - if (!som_solib_have_load_event (pid)) - error (_("Must have a load event to use this query")); - - return som_solib_library_pathname (pid); -} - -char * -som_solib_unloaded_library_pathname (int pid) -{ - if (!som_solib_have_unload_event (pid)) - error (_("Must have an unload event to use this query")); - - return som_solib_library_pathname (pid); -} - -static void -som_solib_desire_dynamic_linker_symbols (void) -{ - struct objfile *objfile; - struct unwind_table_entry *u; - struct minimal_symbol *dld_msymbol; - - /* Do we already know the value of these symbols? If so, then - we've no work to do. - - (If you add clauses to this test, be sure to likewise update the - test within the loop.) - */ - if (dld_cache.is_valid) - return; - - ALL_OBJFILES (objfile) - { - dld_msymbol = lookup_minimal_symbol ("shl_load", NULL, objfile); - if (dld_msymbol != NULL) - { - dld_cache.load.address = SYMBOL_VALUE (dld_msymbol); - dld_cache.load.unwind = find_unwind_entry (dld_cache.load.address); - } - - dld_msymbol = lookup_minimal_symbol_solib_trampoline ("shl_load", - objfile); - if (dld_msymbol != NULL) - { - if (SYMBOL_TYPE (dld_msymbol) == mst_solib_trampoline) - { - u = find_unwind_entry (SYMBOL_VALUE (dld_msymbol)); - if ((u != NULL) && (u->stub_unwind.stub_type == EXPORT)) - { - dld_cache.load_stub.address = SYMBOL_VALUE (dld_msymbol); - dld_cache.load_stub.unwind = u; - } - } - } - - dld_msymbol = lookup_minimal_symbol ("shl_unload", NULL, objfile); - if (dld_msymbol != NULL) - { - dld_cache.unload.address = SYMBOL_VALUE (dld_msymbol); - dld_cache.unload.unwind = find_unwind_entry (dld_cache.unload.address); - - /* ??rehrauer: I'm not sure exactly what this is, but it appears - that on some HPUX 10.x versions, there's two unwind regions to - cover the body of "shl_unload", the second being 4 bytes past - the end of the first. This is a large hack to handle that - case, but since I don't seem to have any legitimate way to - look for this thing via the symbol table... - */ - if (dld_cache.unload.unwind != NULL) - { - u = find_unwind_entry (dld_cache.unload.unwind->region_end + 4); - if (u != NULL) - { - dld_cache.unload2.address = u->region_start; - dld_cache.unload2.unwind = u; - } - } - } - - dld_msymbol = lookup_minimal_symbol_solib_trampoline ("shl_unload", - objfile); - if (dld_msymbol != NULL) - { - if (SYMBOL_TYPE (dld_msymbol) == mst_solib_trampoline) - { - u = find_unwind_entry (SYMBOL_VALUE (dld_msymbol)); - if ((u != NULL) && (u->stub_unwind.stub_type == EXPORT)) - { - dld_cache.unload_stub.address = SYMBOL_VALUE (dld_msymbol); - dld_cache.unload_stub.unwind = u; - } - } - } - - /* Did we find everything we were looking for? If so, stop. */ - if ((dld_cache.load.address != 0) - && (dld_cache.load_stub.address != 0) - && (dld_cache.unload.address != 0) - && (dld_cache.unload_stub.address != 0)) - { - dld_cache.is_valid = 1; - break; - } - } - - dld_cache.hook.unwind = find_unwind_entry (dld_cache.hook.address); - dld_cache.hook_stub.unwind = find_unwind_entry (dld_cache.hook_stub.address); - - /* We're prepared not to find some of these symbols, which is why - this function is a "desire" operation, and not a "require". - */ -} - -int -som_solib_in_dynamic_linker (int pid, CORE_ADDR pc) -{ - struct unwind_table_entry *u_pc; - - /* Are we in the dld itself? - - ??rehrauer: Large hack -- We'll assume that any address in a - shared text region is the dld's text. This would obviously - fall down if the user attached to a process, whose shlibs - weren't mapped to a (writeable) private region. However, in - that case the debugger probably isn't able to set the fundamental - breakpoint in the dld callback anyways, so this hack should be - safe. - */ - if ((pc & (CORE_ADDR) 0xc0000000) == (CORE_ADDR) 0xc0000000) - return 1; - - /* Cache the address of some symbols that are part of the dynamic - linker, if not already known. - */ - som_solib_desire_dynamic_linker_symbols (); - - /* Are we in the dld callback? Or its export stub? */ - u_pc = find_unwind_entry (pc); - if (u_pc == NULL) - return 0; - - if ((u_pc == dld_cache.hook.unwind) || (u_pc == dld_cache.hook_stub.unwind)) - return 1; - - /* Or the interface of the dld (i.e., "shl_load" or friends)? */ - if ((u_pc == dld_cache.load.unwind) - || (u_pc == dld_cache.unload.unwind) - || (u_pc == dld_cache.unload2.unwind) - || (u_pc == dld_cache.load_stub.unwind) - || (u_pc == dld_cache.unload_stub.unwind)) - return 1; - - /* Apparently this address isn't part of the dld's text. */ - return 0; -} - - -/* Return the GOT value for the shared library in which ADDR belongs. If - ADDR isn't in any known shared library, return zero. */ - -CORE_ADDR -som_solib_get_got_by_pc (CORE_ADDR addr) -{ - struct so_list *so_list = so_list_head; - CORE_ADDR got_value = 0; - - while (so_list) - { - if (so_list->som_solib.text_addr <= addr - && so_list->som_solib.text_end > addr) - { - got_value = so_list->som_solib.got_value; - break; - } - so_list = so_list->next; - } - return got_value; -} - -/* elz: - Return the address of the handle of the shared library - in which ADDR belongs. If - ADDR isn't in any known shared library, return zero. */ -/* this function is used in hppa_fix_call_dummy in hppa-tdep.c */ - -CORE_ADDR -som_solib_get_solib_by_pc (CORE_ADDR addr) -{ - struct so_list *so_list = so_list_head; - - while (so_list) - { - if (so_list->som_solib.text_addr <= addr - && so_list->som_solib.text_end > addr) - { - break; - } - so_list = so_list->next; - } - if (so_list) - return so_list->solib_addr; - else - return 0; -} - - -int -som_solib_section_offsets (struct objfile *objfile, - struct section_offsets *offsets) -{ - struct so_list *so_list = so_list_head; - - while (so_list) - { - /* Oh what a pain! We need the offsets before so_list->objfile - is valid. The BFDs will never match. Make a best guess. */ - if (strstr (objfile->name, so_list->som_solib.name)) - { - asection *private_section; - - /* The text offset is easy. */ - offsets->offsets[SECT_OFF_TEXT (objfile)] - = (so_list->som_solib.text_addr - - so_list->som_solib.text_link_addr); - offsets->offsets[SECT_OFF_RODATA (objfile)] - = ANOFFSET (offsets, SECT_OFF_TEXT (objfile)); - - /* We should look at presumed_dp in the SOM header, but - that's not easily available. This should be OK though. */ - private_section = bfd_get_section_by_name (objfile->obfd, - "$PRIVATE$"); - if (!private_section) - { - warning (_("Unable to find $PRIVATE$ in shared library!")); - offsets->offsets[SECT_OFF_DATA (objfile)] = 0; - offsets->offsets[SECT_OFF_BSS (objfile)] = 0; - return 1; - } - offsets->offsets[SECT_OFF_DATA (objfile)] - = (so_list->som_solib.data_start - private_section->vma); - offsets->offsets[SECT_OFF_BSS (objfile)] - = ANOFFSET (offsets, SECT_OFF_DATA (objfile)); - return 1; - } - so_list = so_list->next; - } - return 0; -} - -/* Dump information about all the currently loaded shared libraries. */ - -static void -som_sharedlibrary_info_command (char *ignore, int from_tty) -{ - struct so_list *so_list = so_list_head; - - if (exec_bfd == NULL) - { - printf_unfiltered ("No executable file.\n"); - return; - } - - if (so_list == NULL) - { - printf_unfiltered ("No shared libraries loaded at this time.\n"); - return; - } - - printf_unfiltered ("Shared Object Libraries\n"); - printf_unfiltered (" %-12s%-12s%-12s%-12s%-12s%-12s\n", - " flags", " tstart", " tend", " dstart", " dend", " dlt"); - while (so_list) - { - unsigned int flags; - - flags = so_list->som_solib.struct_version << 24; - flags |= so_list->som_solib.bind_mode << 16; - flags |= so_list->som_solib.library_version; - printf_unfiltered ("%s", so_list->som_solib.name); - if (so_list->objfile == NULL) - printf_unfiltered (" (symbols not loaded)"); - printf_unfiltered ("\n"); - printf_unfiltered (" %-12s", hex_string_custom (flags, 8)); - printf_unfiltered ("%-12s", - hex_string_custom (so_list->som_solib.text_addr, 8)); - printf_unfiltered ("%-12s", - hex_string_custom (so_list->som_solib.text_end, 8)); - printf_unfiltered ("%-12s", - hex_string_custom (so_list->som_solib.data_start, 8)); - printf_unfiltered ("%-12s", - hex_string_custom (so_list->som_solib.data_end, 8)); - printf_unfiltered ("%-12s\n", - hex_string_custom (so_list->som_solib.got_value, 8)); - so_list = so_list->next; - } -} - -static void -som_solib_sharedlibrary_command (char *args, int from_tty) -{ - dont_repeat (); - som_solib_add (args, from_tty, (struct target_ops *) 0, 1); -} - - - -char * -som_solib_address (CORE_ADDR addr) -{ - struct so_list *so = so_list_head; - - while (so) - { - /* Is this address within this shlib's text range? If so, - return the shlib's name. - */ - if ((addr >= so->som_solib.text_addr) && (addr <= so->som_solib.text_end)) - return so->som_solib.name; - - /* Nope, keep looking... */ - so = so->next; - } - - /* No, we couldn't prove that the address is within a shlib. */ - return NULL; -} - - -void -som_solib_restart (void) -{ - struct so_list *sl = so_list_head; - - /* Before the shlib info vanishes, use it to disable any breakpoints - that may still be active in those shlibs. - */ - disable_breakpoints_in_shlibs (0); - - /* Discard all the shlib descriptors. - */ - while (sl) - { - struct so_list *next_sl = sl->next; - xfree (sl); - sl = next_sl; - } - so_list_head = NULL; - - som_solib_total_st_size = (LONGEST) 0; - som_solib_st_size_threshold_exceeded = 0; - - dld_cache.is_valid = 0; - - dld_cache.hook.address = 0; - dld_cache.hook.unwind = NULL; - - dld_cache.hook_stub.address = 0; - dld_cache.hook_stub.unwind = NULL; - - dld_cache.load.address = 0; - dld_cache.load.unwind = NULL; - - dld_cache.load_stub.address = 0; - dld_cache.load_stub.unwind = NULL; - - dld_cache.unload.address = 0; - dld_cache.unload.unwind = NULL; - - dld_cache.unload2.address = 0; - dld_cache.unload2.unwind = NULL; - - dld_cache.unload_stub.address = 0; - dld_cache.unload_stub.unwind = NULL; -} - - -void -_initialize_som_solib (void) -{ - add_com ("sharedlibrary", class_files, som_solib_sharedlibrary_command, - _("Load shared object library symbols for files matching REGEXP.")); - add_info ("sharedlibrary", som_sharedlibrary_info_command, - _("Status of loaded shared object libraries.")); - - add_setshow_boolean_cmd ("auto-solib-add", class_support, - &auto_solib_add, _("\ -Set autoloading of shared library symbols."), _("\ -Show autoloading of shared library symbols."), _("\ -If \"on\", symbols from all shared object libraries will be loaded\n\ -automatically when the inferior begins execution, when the dynamic linker\n\ -informs gdb that a new library has been loaded, or when attaching to the\n\ -inferior. Otherwise, symbols must be loaded manually, using `sharedlibrary'."), - NULL, - NULL, /* FIXME: i18n: */ - &setlist, &showlist); - - add_setshow_zinteger_cmd ("auto-solib-limit", class_support, - &auto_solib_limit, _("\ -Set threshold (in Mb) for autoloading shared library symbols."), _("\ -Show threshold (in Mb) for autoloading shared library symbols."), _("\ -When shared library autoloading is enabled, new libraries will be loaded\n\ -only until the total size of shared library symbols exceeds this\n\ -threshold in megabytes. Is ignored when using `sharedlibrary'."), - NULL, - NULL, /* FIXME: i18n: */ - &setlist, &showlist); - - /* ??rehrauer: On HP-UX, the kernel parameter MAXDSIZ limits how - much data space a process can use. We ought to be reading - MAXDSIZ and setting auto_solib_limit to some large fraction of - that value. If not that, we maybe ought to be setting it smaller - than the default for MAXDSIZ (that being 64Mb, I believe). - However, [1] this threshold is only crudely approximated rather - than actually measured, and [2] 50 Mbytes is too small for - debugging gdb itself. Thus, the arbitrary 100 figure. */ - auto_solib_limit = 100; /* Megabytes */ - - som_solib_restart (); -} - -/* Get some HPUX-specific data from a shared lib. - */ -CORE_ADDR -som_solib_thread_start_addr (struct so_list *so) -{ - return so->som_solib.tsd_start_addr; -} - -#ifdef PA_SOM_ONLY -void -no_shared_libraries (char *ignored, int from_tty) -{ -} -#endif diff --git a/gdb/somsolib.h b/gdb/somsolib.h deleted file mode 100644 index d4e56d60244..00000000000 --- a/gdb/somsolib.h +++ /dev/null @@ -1,180 +0,0 @@ -/* HP SOM Shared library declarations for GDB, the GNU Debugger. - - Copyright 1992, 1994, 1995, 1998, 1999, 2000, 2003 Free Software - Foundation, Inc. - - This file is part of GDB. - - 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 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. - - Written by the Center for Software Science at the Univerity of Utah - and by Cygnus Support. */ - -#ifndef SOMSOLIB_H -#define SOMSOLIB_H - -/* Forward decl's for prototypes */ -struct target_ops; -struct objfile; -struct section_offsets; - -/* Called to add symbols from a shared library to gdb's symbol table. */ - -#define SOLIB_ADD(filename, from_tty, targ, readsyms) \ - som_solib_add (filename, from_tty, targ, readsyms) - -extern void som_solib_add (char *, int, struct target_ops *, int); - -extern CORE_ADDR som_solib_get_got_by_pc (CORE_ADDR); - -extern int som_solib_section_offsets (struct objfile *, - struct section_offsets *); - -/* Function to be called when the inferior starts up, to discover the - names of shared libraries that are dynamically linked, the base - addresses to which they are linked, and sufficient information to - read in their symbols at a later time. */ - -#define SOLIB_CREATE_INFERIOR_HOOK(PID) som_solib_create_inferior_hook() - -extern void som_solib_create_inferior_hook (void); - -/* Function to be called to remove the connection between debugger and - dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK. - (This operation does not remove shared library information from - the debugger, as CLEAR_SOLIB does.) - */ -#define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook (PID) - -extern void som_solib_remove_inferior_hook (int); - -/* This function is called by the "catch load" command. It allows - the debugger to be notified by the dynamic linker when a specified - library file (or any library file, if filename is NULL) is loaded. - */ -#define SOLIB_CREATE_CATCH_LOAD_HOOK(pid, tempflag, filename, cond_string) \ - som_solib_create_catch_load_hook (pid, tempflag, filename, cond_string) - -extern void som_solib_create_catch_load_hook (int, int, char *, char *); - -/* This function is called by the "catch unload" command. It allows - the debugger to be notified by the dynamic linker when a specified - library file (or any library file, if filename is NULL) is unloaded. - */ -#define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid, tempflag, filename, cond_string) \ - som_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string) - -extern void som_solib_create_catch_unload_hook (int, int, char *, char *); - -/* This function returns TRUE if the dynamic linker has just reported - a load of a library. - - This function must be used only when the inferior has stopped in - the dynamic linker hook, or undefined results are guaranteed. - */ -#define SOLIB_HAVE_LOAD_EVENT(pid) \ - som_solib_have_load_event (pid) - -extern int som_solib_have_load_event (int); - -/* This function returns a pointer to the string representation of the - pathname of the dynamically-linked library that has just been loaded. - - This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE, - or undefined results are guaranteed. - - This string's contents are only valid immediately after the - inferior has stopped in the dynamic linker hook, and becomes - invalid as soon as the inferior is continued. Clients should make - a copy of this string if they wish to continue the inferior and - then access the string. - */ -#define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \ - som_solib_loaded_library_pathname (pid) - -extern char *som_solib_loaded_library_pathname (int); - -/* This function returns TRUE if the dynamic linker has just reported - an unload of a library. - - This function must be used only when the inferior has stopped in - the dynamic linker hook, or undefined results are guaranteed. - */ -#define SOLIB_HAVE_UNLOAD_EVENT(pid) \ - som_solib_have_unload_event (pid) - -extern int som_solib_have_unload_event (int); - -/* This function returns a pointer to the string representation of the - pathname of the dynamically-linked library that has just been unloaded. - - This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE, - or undefined results are guaranteed. - - This string's contents are only valid immediately after the - inferior has stopped in the dynamic linker hook, and becomes - invalid as soon as the inferior is continued. Clients should make - a copy of this string if they wish to continue the inferior and - then access the string. - */ -#define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \ - som_solib_unloaded_library_pathname (pid) - -extern char *som_solib_unloaded_library_pathname (int); - -/* This function returns TRUE if pc is the address of an instruction that - lies within the dynamic linker (such as the event hook, or the dld - itself). - - This function must be used only when a dynamic linker event has - been caught, and the inferior is being stepped out of the hook, or - undefined results are guaranteed. - */ -#define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \ - som_solib_in_dynamic_linker (pid, pc) - -extern int som_solib_in_dynamic_linker (int, CORE_ADDR); - -/* This function must be called when the inferior is killed, and the program - restarted. This is not the same as CLEAR_SOLIB, in that it doesn't discard - any symbol tables. - - Presently, this functionality is not implemented. - */ -#define SOLIB_RESTART() \ - som_solib_restart () - -extern void som_solib_restart (void); - -/* If we can't set a breakpoint, and it's in a shared library, just - disable it. */ - -#define DISABLE_UNSETTABLE_BREAK(addr) (som_solib_address(addr) != NULL) - -extern char *som_solib_address (CORE_ADDR); /* somsolib.c */ - -/* If ADDR lies in a shared library, return its name. */ - -#define PC_SOLIB(addr) som_solib_address (addr) - -extern CORE_ADDR som_solib_get_solib_by_pc (CORE_ADDR addr); - -struct so_list; -extern CORE_ADDR som_solib_thread_start_addr (struct so_list *so); - -extern void no_shared_libraries (char *ignored, int from_tty); - -#endif