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gdb/gdb-archer-pie-addons.patch

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Index: gdb-7.0.50.20100115/gdb/dwarf2read.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/dwarf2read.c 2010-01-15 21:41:32.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/dwarf2read.c 2010-01-15 21:42:19.000000000 +0100
@@ -5821,7 +5821,12 @@ read_common_block (struct die_info *die,
{
struct attribute *attr;
struct symbol *sym;
- CORE_ADDR base = (CORE_ADDR) 0;
+ struct objfile *objfile = cu->objfile;
+ CORE_ADDR baseaddr = ANOFFSET (objfile->section_offsets,
+ SECT_OFF_TEXT (objfile));
+ /* This is used only for DW_AT_data_member_location entries. */
+ CORE_ADDR base = 0;
+ int base_p = 0;
attr = dwarf2_attr (die, DW_AT_location, cu);
if (attr)
@@ -5830,6 +5835,7 @@ read_common_block (struct die_info *die,
if (attr_form_is_block (attr))
{
base = decode_locdesc (DW_BLOCK (attr), cu);
+ base_p = 1;
}
else if (attr_form_is_section_offset (attr))
{
@@ -5891,12 +5897,15 @@ read_common_block (struct die_info *die,
else
dwarf2_complex_location_expr_complaint ();
- SYMBOL_VALUE_ADDRESS (sym) = base + byte_offset;
+ if (!base_p)
+ dwarf2_invalid_attrib_class_complaint
+ ("DW_AT_data_member_location", "common block member");
+ SYMBOL_VALUE_ADDRESS (sym) = base + byte_offset + baseaddr;
add_symbol_to_list (sym, &global_symbols);
}
if (SYMBOL_CLASS (sym) == LOC_STATIC)
- SET_FIELD_PHYSADDR (*field, SYMBOL_VALUE_ADDRESS (sym));
+ SET_FIELD_PHYSADDR (*field, SYMBOL_VALUE_ADDRESS (sym) - baseaddr);
else
SET_FIELD_PHYSNAME (*field, SYMBOL_LINKAGE_NAME (sym));
FIELD_TYPE (*field) = SYMBOL_TYPE (sym);
@@ -5910,7 +5919,7 @@ read_common_block (struct die_info *die,
sym = new_symbol (die, type, cu);
/* SYMBOL_VALUE_ADDRESS never gets used as all its fields are static. */
- SYMBOL_VALUE_ADDRESS (sym) = base;
+ SYMBOL_VALUE_ADDRESS (sym) = base + baseaddr;
set_die_type (die, type, cu);
}
Index: gdb-7.0.50.20100115/gdb/exec.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/exec.c 2010-01-15 21:35:14.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/exec.c 2010-01-15 21:47:19.000000000 +0100
@@ -34,6 +34,7 @@
#include "arch-utils.h"
#include "gdbthread.h"
#include "progspace.h"
+#include "solib.h"
#include <fcntl.h>
#include "readline/readline.h"
@@ -225,6 +226,10 @@ exec_file_attach (char *filename, int fr
char *scratch_pathname;
int scratch_chan;
struct target_section *sections = NULL, *sections_end = NULL;
+ struct target_section *p;
+ int addr_bit;
+ CORE_ADDR mask = CORE_ADDR_MAX;
+ CORE_ADDR displacement;
scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename,
write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
@@ -293,12 +298,23 @@ exec_file_attach (char *filename, int fr
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
+ set_gdbarch_from_file (exec_bfd);
+
+ addr_bit = gdbarch_addr_bit (target_gdbarch);
+ if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
+ mask = ((CORE_ADDR) 1 << addr_bit) - 1;
+
+ displacement = solib_exec_displacement ();
+ for (p = sections; p < sections_end; p++)
+ {
+ p->addr = (p->addr + displacement) & mask;
+ p->endaddr = (p->endaddr + displacement) & mask;
+ }
+
exec_bfd_mtime = bfd_get_mtime (exec_bfd);
validate_files ();
- set_gdbarch_from_file (exec_bfd);
-
/* Add the executable's sections to the current address spaces'
list of sections. This possibly pushes the exec_ops
target. */
Index: gdb-7.0.50.20100115/gdb/gdbtypes.h
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/gdbtypes.h 2010-01-15 21:35:16.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/gdbtypes.h 2010-01-15 21:44:24.000000000 +0100
@@ -406,6 +406,7 @@ enum type_instance_flag_value
enum field_loc_kind
{
FIELD_LOC_KIND_BITPOS, /* bitpos */
+ /* This address is unrelocated by the objfile's ANOFFSET. */
FIELD_LOC_KIND_PHYSADDR, /* physaddr */
FIELD_LOC_KIND_PHYSNAME /* physname */
};
@@ -582,6 +583,7 @@ struct main_type
is the location (in the target) of the static field.
Otherwise, physname is the mangled label of the static field. */
+ /* This address is unrelocated by the objfile's ANOFFSET. */
CORE_ADDR physaddr;
char *physname;
}
@@ -1100,6 +1102,7 @@ extern void allocate_gnat_aux_type (stru
#define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
#define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
#define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
+/* This address is unrelocated by the objfile's ANOFFSET. */
#define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
#define SET_FIELD_BITPOS(thisfld, bitpos) \
(FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
@@ -1107,6 +1110,7 @@ extern void allocate_gnat_aux_type (stru
#define SET_FIELD_PHYSNAME(thisfld, name) \
(FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
FIELD_STATIC_PHYSNAME (thisfld) = (name))
+/* This address is unrelocated by the objfile's ANOFFSET. */
#define SET_FIELD_PHYSADDR(thisfld, addr) \
(FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
FIELD_STATIC_PHYSADDR (thisfld) = (addr))
@@ -1119,6 +1123,7 @@ extern void allocate_gnat_aux_type (stru
#define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
#define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
+/* This address is unrelocated by the objfile's ANOFFSET. */
#define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
#define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
#define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
Index: gdb-7.0.50.20100115/gdb/jv-lang.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/jv-lang.c 2010-01-15 21:35:13.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/jv-lang.c 2010-01-15 21:41:58.000000000 +0100
@@ -416,7 +416,8 @@ java_link_class_type (struct gdbarch *gd
fields = NULL;
nfields--; /* First set up dummy "class" field. */
- SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields), value_address (clas));
+ SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields), value_address (clas)
+ - (TYPE_OBJFILE (type) == NULL ? 0 : ANOFFSET (TYPE_OBJFILE (type)->section_offsets, SECT_OFF_TEXT (TYPE_OBJFILE (type)))));
TYPE_FIELD_NAME (type, nfields) = "class";
TYPE_FIELD_TYPE (type, nfields) = value_type (clas);
SET_TYPE_FIELD_PRIVATE (type, nfields);
@@ -462,7 +463,8 @@ java_link_class_type (struct gdbarch *gd
SET_TYPE_FIELD_PROTECTED (type, i);
}
if (accflags & 0x0008) /* ACC_STATIC */
- SET_FIELD_PHYSADDR (TYPE_FIELD (type, i), boffset);
+ SET_FIELD_PHYSADDR (TYPE_FIELD (type, i), boffset
+ - (TYPE_OBJFILE (type) == NULL ? 0 : ANOFFSET (TYPE_OBJFILE (type)->section_offsets, SECT_OFF_TEXT (TYPE_OBJFILE (type)))));
else
TYPE_FIELD_BITPOS (type, i) = 8 * boffset;
if (accflags & 0x8000) /* FIELD_UNRESOLVED_FLAG */
Index: gdb-7.0.50.20100115/gdb/solib-svr4.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/solib-svr4.c 2010-01-15 21:35:16.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/solib-svr4.c 2010-01-15 21:44:55.000000000 +0100
@@ -1689,7 +1689,10 @@ svr4_exec_displacement (void)
if (target_auxv_search (&current_target, AT_ENTRY, &entry_point) == 1)
return entry_point - bfd_get_start_address (exec_bfd);
- return svr4_static_exec_displacement ();
+ if (!ptid_equal (inferior_ptid, null_ptid))
+ return svr4_static_exec_displacement ();
+
+ return 0;
}
/* Relocate the main executable. This function should be called upon
@@ -1700,7 +1703,7 @@ svr4_exec_displacement (void)
static void
svr4_relocate_main_executable (void)
{
- CORE_ADDR displacement = svr4_exec_displacement ();
+ CORE_ADDR displacement = solib_exec_displacement ();
/* Even if DISPLACEMENT is 0 still try to relocate it as this is a new
difference of in-memory vs. in-file addresses and we could already
@@ -2054,6 +2057,7 @@ _initialize_svr4_solib (void)
svr4_so_ops.free_so = svr4_free_so;
svr4_so_ops.clear_solib = svr4_clear_solib;
svr4_so_ops.solib_create_inferior_hook = svr4_solib_create_inferior_hook;
+ svr4_so_ops.exec_displacement = svr4_exec_displacement;
svr4_so_ops.special_symbol_handling = svr4_special_symbol_handling;
svr4_so_ops.current_sos = svr4_current_sos;
svr4_so_ops.open_symbol_file_object = open_symbol_file_object;
Index: gdb-7.0.50.20100115/gdb/solib.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/solib.c 2010-01-15 21:35:16.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/solib.c 2010-01-15 21:41:58.000000000 +0100
@@ -1037,6 +1037,19 @@ solib_create_inferior_hook (int from_tty
ops->solib_create_inferior_hook (from_tty);
}
+/* Query the difference of in-memory VMA addresses vs. exec_bfd VMAs. */
+
+CORE_ADDR
+solib_exec_displacement (void)
+{
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
+ if (ops->exec_displacement != NULL)
+ return (*ops->exec_displacement) ();
+ else
+ return 0;
+}
+
/* GLOBAL FUNCTION
in_solib_dynsym_resolve_code -- check to see if an address is in
Index: gdb-7.0.50.20100115/gdb/solib.h
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/solib.h 2010-01-08 23:52:04.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/solib.h 2010-01-15 21:42:36.000000000 +0100
@@ -44,6 +44,8 @@ extern int solib_read_symbols (struct so
extern void solib_create_inferior_hook (int from_tty);
+extern CORE_ADDR solib_exec_displacement (void);
+
/* If ADDR lies in a shared library, return its name. */
extern char *solib_name_from_address (struct program_space *, CORE_ADDR);
Index: gdb-7.0.50.20100115/gdb/solist.h
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/solist.h 2010-01-08 23:52:04.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/solist.h 2010-01-15 21:41:58.000000000 +0100
@@ -92,6 +92,9 @@ struct target_so_ops
/* Target dependent code to run after child process fork. */
void (*solib_create_inferior_hook) (int from_tty);
+ /* Query the difference of in-memory VMA addresses vs. exec_bfd VMAs. */
+ CORE_ADDR (*exec_displacement) (void);
+
/* Do additional symbol handling, lookup, etc. after symbols
for a shared object have been loaded. */
void (*special_symbol_handling) (void);
Index: gdb-7.0.50.20100115/gdb/symfile.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/symfile.c 2010-01-15 21:35:14.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/symfile.c 2010-01-15 21:41:58.000000000 +0100
@@ -832,15 +832,36 @@ syms_from_objfile (struct objfile *objfi
if an error occurs during symbol reading. */
old_chain = make_cleanup_free_objfile (objfile);
- /* If ADDRS and OFFSETS are both NULL, put together a dummy address
- list. We now establish the convention that an addr of zero means
- no load address was specified. */
+ /* If ADDRS and OFFSETS are both NULL, put together a dummy offset list. */
+
if (! addrs && ! offsets)
{
- local_addr
- = alloc_section_addr_info (bfd_count_sections (objfile->obfd));
- make_cleanup (xfree, local_addr);
- addrs = local_addr;
+ /* Relocateble files have an exception in default_symfile_offsets which
+ applies only for ADDRS. But calling solib_exec_displacement is more
+ suitable for OFFSETS. Fortunately we never need the both
+ functionalities simultaneously and in other cases zeroed ADDRS and
+ zeroed OFFSETS are equivalent. */
+
+ if ((bfd_get_file_flags (objfile->obfd) & (EXEC_P | DYNAMIC)) == 0)
+ {
+ local_addr
+ = alloc_section_addr_info (bfd_count_sections (objfile->obfd));
+ make_cleanup (xfree, local_addr);
+ addrs = local_addr;
+ }
+ else
+ {
+ CORE_ADDR displacement = 0;
+ int i;
+
+ if (mainline)
+ displacement = solib_exec_displacement ();
+
+ num_offsets = bfd_count_sections (objfile->obfd);
+ offsets = alloca (SIZEOF_N_SECTION_OFFSETS (num_offsets));
+ for (i = 0; i < num_offsets; i++)
+ offsets->offsets[i] = displacement;
+ }
}
/* Now either addrs or offsets is non-zero. */
Index: gdb-7.0.50.20100115/gdb/value.c
===================================================================
--- gdb-7.0.50.20100115.orig/gdb/value.c 2010-01-15 21:35:13.000000000 +0100
+++ gdb-7.0.50.20100115/gdb/value.c 2010-01-15 21:41:58.000000000 +0100
@@ -1897,7 +1897,8 @@ value_static_field (struct type *type, i
if (TYPE_FIELD_LOC_KIND (type, fieldno) == FIELD_LOC_KIND_PHYSADDR)
{
retval = value_at (TYPE_FIELD_TYPE (type, fieldno),
- TYPE_FIELD_STATIC_PHYSADDR (type, fieldno));
+ TYPE_FIELD_STATIC_PHYSADDR (type, fieldno)
+ + (TYPE_OBJFILE (type) == NULL ? 0 : ANOFFSET (TYPE_OBJFILE (type)->section_offsets, SECT_OFF_TEXT (TYPE_OBJFILE (type)))));
}
else
{
@@ -1927,7 +1928,8 @@ value_static_field (struct type *type, i
}
if (retval && VALUE_LVAL (retval) == lval_memory)
SET_FIELD_PHYSADDR (TYPE_FIELD (type, fieldno),
- value_address (retval));
+ value_address (retval)
+ - (TYPE_OBJFILE (type) == NULL ? 0 : ANOFFSET (TYPE_OBJFILE (type)->section_offsets, SECT_OFF_TEXT (TYPE_OBJFILE (type)))));
}
return retval;
}
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