#include <sys/types.h>
#include "gdb_stat.h"
#include <fcntl.h>
-#include <obstack.h>
+#include "obstack.h"
#include "gdb_string.h"
/* Prototypes for local functions */
-#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
+#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
static int
open_existing_mapped_file PARAMS ((char *, long, int));
static int
open_mapped_file PARAMS ((char *filename, long mtime, int mapped));
-static CORE_ADDR
-map_to_address PARAMS ((void));
+static PTR
+map_to_file PARAMS ((int));
-#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
+
+static void
+add_to_objfile_sections PARAMS ((bfd *, sec_ptr, PTR));
/* Externally visible variables that are owned by this module.
See declarations in objfile.h for more info. */
section.offset = 0;
section.objfile = objfile;
section.the_bfd_section = asect;
+ section.ovly_mapped = 0;
section.addr = bfd_section_vma (abfd, asect);
section.endaddr = section.addr + bfd_section_size (abfd, asect);
- obstack_grow (&objfile->psymbol_obstack, §ion, sizeof(section));
+ obstack_grow (&objfile->psymbol_obstack, (char *) §ion, sizeof(section));
objfile->sections_end = (struct obj_section *) (((unsigned long) objfile->sections_end) + 1);
}
mapped |= mapped_symbol_files;
-#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
+#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
+ if (abfd != NULL)
{
/* If we can support mapped symbol files, try to open/reopen the
mapped);
if (fd >= 0)
{
- CORE_ADDR mapto;
PTR md;
- if (((mapto = map_to_address ()) == 0) ||
- ((md = mmalloc_attach (fd, (PTR) mapto)) == NULL))
+ if ((md = map_to_file (fd)) == NULL)
{
close (fd);
}
objfile -> md = md;
objfile -> mmfd = fd;
/* Update pointers to functions to *our* copies */
+ obstack_chunkfun (&objfile -> psymbol_cache.cache, xmmalloc);
+ obstack_freefun (&objfile -> psymbol_cache.cache, mfree);
obstack_chunkfun (&objfile -> psymbol_obstack, xmmalloc);
obstack_freefun (&objfile -> psymbol_obstack, mfree);
obstack_chunkfun (&objfile -> symbol_obstack, xmmalloc);
objfile -> mmfd = fd;
objfile -> flags |= OBJF_MAPPED;
mmalloc_setkey (objfile -> md, 0, objfile);
+ obstack_specify_allocation_with_arg (&objfile -> psymbol_cache.cache,
+ 0, 0, xmmalloc, mfree,
+ objfile -> md);
obstack_specify_allocation_with_arg (&objfile -> psymbol_obstack,
0, 0, xmmalloc, mfree,
objfile -> md);
bfd_get_filename (abfd));
}
}
-#else /* defined(NO_MMALLOC) || !defined(HAVE_MMAP) */
+#else /* !defined(USE_MMALLOC) || !defined(HAVE_MMAP) */
if (mapped)
{
mapped_symbol_files = 0;
}
-#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
/* If we don't support mapped symbol files, didn't ask for the file to be
mapped, or failed to open the mapped file for some reason, then revert
objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
memset (objfile, 0, sizeof (struct objfile));
objfile -> md = NULL;
+ obstack_specify_allocation (&objfile -> psymbol_cache.cache, 0, 0,
+ xmalloc, free);
obstack_specify_allocation (&objfile -> psymbol_obstack, 0, 0, xmalloc,
free);
obstack_specify_allocation (&objfile -> symbol_obstack, 0, 0, xmalloc,
{
mfree (objfile -> md, objfile -> name);
}
- objfile -> name = mstrsave (objfile -> md, bfd_get_filename (abfd));
- objfile -> mtime = bfd_get_mtime (abfd);
+ if (abfd != NULL)
+ {
+ objfile -> name = mstrsave (objfile -> md, bfd_get_filename (abfd));
+ objfile -> mtime = bfd_get_mtime (abfd);
- /* Build section table. */
+ /* Build section table. */
- if (build_objfile_section_table (objfile))
- {
- error ("Can't find the file sections in `%s': %s",
- objfile -> name, bfd_errmsg (bfd_get_error ()));
+ if (build_objfile_section_table (objfile))
+ {
+ error ("Can't find the file sections in `%s': %s",
+ objfile -> name, bfd_errmsg (bfd_get_error ()));
+ }
}
/* Add this file onto the tail of the linked list of other such files. */
case. Note that the mmalloc_detach or the mfree is the last thing
we can do with this objfile. */
-#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
+#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
if (objfile -> flags & OBJF_MAPPED)
{
close (mmfd);
}
-#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
/* If we still have an objfile, then either we don't support reusable
objfiles or this one was not reusable. So free it normally. */
if (objfile->static_psymbols.list)
mfree (objfile->md, objfile->static_psymbols.list);
/* Free the obstacks for non-reusable objfiles */
+ obstack_free (&objfile -> psymbol_cache.cache, 0);
obstack_free (&objfile -> psymbol_obstack, 0);
obstack_free (&objfile -> symbol_obstack, 0);
obstack_free (&objfile -> type_obstack, 0);
struct objfile *objfile;
struct section_offsets *new_offsets;
{
- struct section_offsets *delta = (struct section_offsets *) alloca
- (sizeof (struct section_offsets)
- + objfile->num_sections * sizeof (delta->offsets));
+ struct section_offsets *delta = (struct section_offsets *)
+ alloca (sizeof (struct section_offsets)
+ + objfile->num_sections * sizeof (delta->offsets));
{
int i;
b = BLOCKVECTOR_BLOCK (bv, i);
BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
- BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
+ BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
for (j = 0; j < BLOCK_NSYMS (b); ++j)
{
|| SYMBOL_CLASS (sym) == LOC_STATIC)
&& SYMBOL_SECTION (sym) >= 0)
{
- SYMBOL_VALUE_ADDRESS (sym) +=
+ SYMBOL_VALUE_ADDRESS (sym) +=
ANOFFSET (delta, SYMBOL_SECTION (sym));
}
#ifdef MIPS_EFI_SYMBOL_NAME
if (SYMBOL_CLASS (sym) == LOC_CONST
&& SYMBOL_NAMESPACE (sym) == LABEL_NAMESPACE
&& STRCMP (SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
- ecoff_relocate_efi (sym, ANOFFSET (delta, s->block_line_section));
+ ecoff_relocate_efi (sym, ANOFFSET (delta,
+ s->block_line_section));
#endif
}
}
}
{
- struct partial_symbol *psym;
+ struct partial_symbol **psym;
for (psym = objfile->global_psymbols.list;
psym < objfile->global_psymbols.next;
psym++)
- if (SYMBOL_SECTION (psym) >= 0)
- SYMBOL_VALUE_ADDRESS (psym) += ANOFFSET (delta, SYMBOL_SECTION (psym));
+ if (SYMBOL_SECTION (*psym) >= 0)
+ SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
+ SYMBOL_SECTION (*psym));
for (psym = objfile->static_psymbols.list;
psym < objfile->static_psymbols.next;
psym++)
- if (SYMBOL_SECTION (psym) >= 0)
- SYMBOL_VALUE_ADDRESS (psym) += ANOFFSET (delta, SYMBOL_SECTION (psym));
+ if (SYMBOL_SECTION (*psym) >= 0)
+ SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
+ SYMBOL_SECTION (*psym));
}
{
if (flags & SEC_CODE)
{
- s->addr += ANOFFSET (delta, SECT_OFF_TEXT);
+ s->addr += ANOFFSET (delta, SECT_OFF_TEXT);
s->endaddr += ANOFFSET (delta, SECT_OFF_TEXT);
}
else if (flags & (SEC_DATA | SEC_LOAD))
{
- s->addr += ANOFFSET (delta, SECT_OFF_DATA);
+ s->addr += ANOFFSET (delta, SECT_OFF_DATA);
s->endaddr += ANOFFSET (delta, SECT_OFF_DATA);
}
else if (flags & SEC_ALLOC)
{
- s->addr += ANOFFSET (delta, SECT_OFF_BSS);
+ s->addr += ANOFFSET (delta, SECT_OFF_BSS);
s->endaddr += ANOFFSET (delta, SECT_OFF_BSS);
}
}
}
- if (objfile->ei.entry_point != ~0)
+ if (objfile->ei.entry_point != ~(CORE_ADDR)0)
objfile->ei.entry_point += ANOFFSET (delta, SECT_OFF_TEXT);
if (objfile->ei.entry_func_lowpc != INVALID_ENTRY_LOWPC)
{
- objfile->ei.entry_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
+ objfile->ei.entry_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
objfile->ei.entry_func_highpc += ANOFFSET (delta, SECT_OFF_TEXT);
}
if (objfile->ei.entry_file_lowpc != INVALID_ENTRY_LOWPC)
{
- objfile->ei.entry_file_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
+ objfile->ei.entry_file_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
objfile->ei.entry_file_highpc += ANOFFSET (delta, SECT_OFF_TEXT);
}
if (objfile->ei.main_func_lowpc != INVALID_ENTRY_LOWPC)
{
- objfile->ei.main_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
+ objfile->ei.main_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
objfile->ei.main_func_highpc += ANOFFSET (delta, SECT_OFF_TEXT);
}
+
+ /* Relocate breakpoints as necessary, after things are relocated. */
+ breakpoint_re_set ();
}
\f
/* Many places in gdb want to test just to see if we have any partial
return 0;
}
-#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
+#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
/* Given the name of a mapped symbol file in SYMSFILENAME, and the timestamp
of the corresponding symbol file in MTIME, try to open an existing file
return (fd);
}
-/* Return the base address at which we would like the next objfile's
- mapped data to start.
-
- For now, we use the kludge that the configuration specifies a base
- address to which it is safe to map the first mmalloc heap, and an
- increment to add to this address for each successive heap. There are
- a lot of issues to deal with here to make this work reasonably, including:
-
- Avoid memory collisions with existing mapped address spaces
-
- Reclaim address spaces when their mmalloc heaps are unmapped
-
- When mmalloc heaps are shared between processes they have to be
- mapped at the same addresses in each
-
- Once created, a mmalloc heap that is to be mapped back in must be
- mapped at the original address. I.E. each objfile will expect to
- be remapped at it's original address. This becomes a problem if
- the desired address is already in use.
-
- etc, etc, etc.
-
- */
-
-
-static CORE_ADDR
-map_to_address ()
+static PTR
+map_to_file (fd)
+ int fd;
{
+ PTR md;
+ CORE_ADDR mapto;
-#if defined(MMAP_BASE_ADDRESS) && defined (MMAP_INCREMENT)
-
- static CORE_ADDR next = MMAP_BASE_ADDRESS;
- CORE_ADDR mapto = next;
-
- next += MMAP_INCREMENT;
- return (mapto);
-
-#else
-
- warning ("need to recompile gdb with MMAP_BASE_ADDRESS and MMAP_INCREMENT defined");
- return (0);
-
-#endif
-
+ md = mmalloc_attach (fd, (PTR) 0);
+ if (md != NULL)
+ {
+ mapto = (CORE_ADDR) mmalloc_getkey (md, 1);
+ md = mmalloc_detach (md);
+ if (md != NULL)
+ {
+ /* FIXME: should figure out why detach failed */
+ md = NULL;
+ }
+ else if (mapto != (CORE_ADDR) NULL)
+ {
+ /* This mapping file needs to be remapped at "mapto" */
+ md = mmalloc_attach (fd, (PTR) mapto);
+ }
+ else
+ {
+ /* This is a freshly created mapping file. */
+ mapto = (CORE_ADDR) mmalloc_findbase (20 * 1024 * 1024);
+ if (mapto != 0)
+ {
+ /* To avoid reusing the freshly created mapping file, at the
+ address selected by mmap, we must truncate it before trying
+ to do an attach at the address we want. */
+ ftruncate (fd, 0);
+ md = mmalloc_attach (fd, (PTR) mapto);
+ if (md != NULL)
+ {
+ mmalloc_setkey (md, 1, (PTR) mapto);
+ }
+ }
+ }
+ }
+ return (md);
}
-#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
-/* Returns a section whose range includes PC or NULL if none found. */
+/* Returns a section whose range includes PC and SECTION,
+ or NULL if none found. Note the distinction between the return type,
+ struct obj_section (which is defined in gdb), and the input type
+ struct sec (which is a bfd-defined data type). The obj_section
+ contains a pointer to the bfd struct sec section. */
struct obj_section *
-find_pc_section(pc)
+find_pc_sect_section (pc, section)
CORE_ADDR pc;
+ struct sec *section;
{
struct obj_section *s;
struct objfile *objfile;
ALL_OBJFILES (objfile)
for (s = objfile->sections; s < objfile->sections_end; ++s)
- if (s->addr <= pc
- && pc < s->endaddr)
+ if ((section == 0 || section == s->the_bfd_section) &&
+ s->addr <= pc && pc < s->endaddr)
return(s);
return(NULL);
}
+/* Returns a section whose range includes PC or NULL if none found.
+ Backward compatibility, no section. */
+
+struct obj_section *
+find_pc_section(pc)
+ CORE_ADDR pc;
+{
+ return find_pc_sect_section (pc, find_pc_mapped_section (pc));
+}
+
+
/* In SVR4, we recognize a trampoline by it's section name.
That is, if the pc is in a section named ".plt" then we are in
a trampoline. */
projects / deliverable / binutils-gdb.git / blobdiff