#include "defs.h"
#include "osabi.h"
-
#include "gdb_string.h"
-
#include "i386-tdep.h"
+#include "regset.h"
+#include "gdb_obstack.h"
+#include "xml-support.h"
+#include "gdbcore.h"
+
+/* Core file support. */
+
+/* This vector maps GDB's idea of a register's number into an address
+ in the win32 exception context vector. */
+
+static int i386_win32_gregset_reg_offset[] =
+{
+ 176, /* eax */
+ 172, /* ecx */
+ 168, /* edx */
+ 164, /* ebx */
+
+ 196, /* esp */
+ 180, /* ebp */
+ 160, /* esi */
+ 156, /* edi */
+
+ 184, /* eip */
+ 192, /* eflags */
+ 188, /* cs */
+ 200, /* ss */
+
+ 152, /* ds */
+ 148, /* es */
+ 144, /* fs */
+ 140, /* gs */
+
+ 56, /* FloatSave.RegisterArea[0 * 10] */
+ 66, /* FloatSave.RegisterArea[1 * 10] */
+ 76, /* FloatSave.RegisterArea[2 * 10] */
+ 86, /* FloatSave.RegisterArea[3 * 10] */
+ 96, /* FloatSave.RegisterArea[4 * 10] */
+ 106, /* FloatSave.RegisterArea[5 * 10] */
+ 116, /* FloatSave.RegisterArea[6 * 10] */
+ 126, /* FloatSave.RegisterArea[7 * 10] */
+
+ 28, /* FloatSave.ControlWord */
+ 32, /* FloatSave.StatusWord */
+ 36, /* FloatSave.TagWord */
+ 44, /* FloatSave.ErrorSelector */
+ 40, /* FloatSave.ErrorOffset */
+ 52, /* FloatSave.DataSelector */
+ 48, /* FloatSave.DataOffset */
+ 44, /* FloatSave.ErrorSelector */
+
+ /* XMM0-7 */
+ 364, /* ExtendedRegisters[10*16] */
+ 380, /* ExtendedRegisters[11*16] */
+ 396, /* ExtendedRegisters[12*16] */
+ 412, /* ExtendedRegisters[13*16] */
+ 428, /* ExtendedRegisters[14*16] */
+ 444, /* ExtendedRegisters[15*16] */
+ 460, /* ExtendedRegisters[16*16] */
+ 476, /* ExtendedRegisters[17*16] */
+
+ /* MXCSR */
+ 228 /* ExtendedRegisters[24] */
+};
+
+#define I386_WIN32_SIZEOF_GREGSET 716
+
+/* Return the appropriate register set for the core section identified
+ by SECT_NAME and SECT_SIZE. */
+
+static const struct regset *
+i386_win32_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ if (strcmp (sect_name, ".reg") == 0
+ && sect_size == I386_WIN32_SIZEOF_GREGSET)
+ {
+ if (tdep->gregset == NULL)
+ tdep->gregset = regset_alloc (gdbarch, i386_supply_gregset,
+ i386_collect_gregset);
+ return tdep->gregset;
+ }
+
+ return NULL;
+}
+
+static void
+win32_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
+ struct obstack *obstack)
+{
+ char *p;
+ obstack_grow_str (obstack, "<library name=\"");
+ p = xml_escape_text (so_name);
+ obstack_grow_str (obstack, p);
+ xfree (p);
+ obstack_grow_str (obstack, "\"><segment address=\"0x");
+ /* The symbols in a dll are offset by 0x1000, which is the the
+ offset from 0 of the first byte in an image - because of the file
+ header and the section alignment. */
+ p = paddr_nz (load_addr + 0x1000);
+ obstack_grow_str (obstack, p);
+ obstack_grow_str (obstack, "\"/></library>");
+}
+
+struct cpms_data
+{
+ struct obstack *obstack;
+ int module_count;
+};
+
+static void
+core_process_module_section (bfd *abfd, asection *sect, void *obj)
+{
+ struct cpms_data *data = obj;
+
+ char *module_name;
+ size_t module_name_size;
+ CORE_ADDR base_addr;
+
+ char *buf = NULL;
+
+ if (strncmp (sect->name, ".module", 7) != 0)
+ return;
+
+ buf = xmalloc (bfd_get_section_size (sect) + 1);
+ if (!buf)
+ {
+ printf_unfiltered ("memory allocation failed for %s\n", sect->name);
+ goto out;
+ }
+ if (!bfd_get_section_contents (abfd, sect,
+ buf, 0, bfd_get_section_size (sect)))
+ goto out;
+
+
+
+ /* A DWORD (data_type) followed by struct win32_core_module_info. */
+
+ base_addr =
+ extract_unsigned_integer (buf + 4, 4);
+
+ module_name_size =
+ extract_unsigned_integer (buf + 8, 4);
+
+ module_name = buf + 12;
+ if (module_name - buf + module_name_size > bfd_get_section_size (sect))
+ goto out;
+
+ /* The first module is the .exe itself. */
+ if (data->module_count != 0)
+ win32_xfer_shared_library (module_name, base_addr, data->obstack);
+ data->module_count++;
+
+out:
+ if (buf)
+ xfree (buf);
+ return;
+}
+
+static LONGEST
+win32_core_xfer_shared_libraries (struct gdbarch *gdbarch,
+ gdb_byte *readbuf,
+ ULONGEST offset, LONGEST len)
+{
+ struct obstack obstack;
+ const char *buf;
+ LONGEST len_avail;
+ struct cpms_data data = { &obstack, 0 };
+
+ obstack_init (&obstack);
+ obstack_grow_str (&obstack, "<library-list>\n");
+ bfd_map_over_sections (core_bfd,
+ core_process_module_section,
+ &data);
+ obstack_grow_str0 (&obstack, "</library-list>\n");
+
+ buf = obstack_finish (&obstack);
+ len_avail = strlen (buf);
+ if (offset >= len_avail)
+ return 0;
+
+ if (len > len_avail - offset)
+ len = len_avail - offset;
+ memcpy (readbuf, buf + offset, len);
+
+ obstack_free (&obstack, NULL);
+ return len;
+}
static CORE_ADDR
i386_cygwin_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
set_gdbarch_skip_trampoline_code (gdbarch, i386_cygwin_skip_trampoline_code);
tdep->struct_return = reg_struct_return;
+
+ tdep->gregset_reg_offset = i386_win32_gregset_reg_offset;
+ tdep->gregset_num_regs = ARRAY_SIZE (i386_win32_gregset_reg_offset);
+ tdep->sizeof_gregset = I386_WIN32_SIZEOF_GREGSET;
+
+ /* Core file support. */
+ set_gdbarch_regset_from_core_section
+ (gdbarch, i386_win32_regset_from_core_section);
+ set_gdbarch_core_xfer_shared_libraries
+ (gdbarch, win32_core_xfer_shared_libraries);
}
static enum gdb_osabi
-i386_cygwin_osabi_sniffer (bfd * abfd)
-{
+i386_cygwin_osabi_sniffer (bfd *abfd)
+{
char *target_name = bfd_get_target (abfd);
- /* Interix also uses pei-i386.
+ /* Interix also uses pei-i386.
We need a way to distinguish between the two. */
if (strcmp (target_name, "pei-i386") == 0)
return GDB_OSABI_CYGWIN;
+ /* Cygwin uses elf core dumps. */
+ if (strcmp (target_name, "elf32-i386") == 0)
+ return GDB_OSABI_CYGWIN;
+
return GDB_OSABI_UNKNOWN;
}
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
i386_cygwin_osabi_sniffer);
+ /* Cygwin uses elf core dumps. */
+ gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
+ i386_cygwin_osabi_sniffer);
+
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_CYGWIN,
i386_cygwin_init_abi);
}
projects / deliverable / binutils-gdb.git / blobdiff