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-rw-r--r--gdb/ChangeLog12
-rw-r--r--gdb/config/m68k/linux.mh2
-rw-r--r--gdb/m68klinux-nat.c84
3 files changed, 92 insertions, 6 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b5edde6..e0507b5 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,15 @@
+2001-07-11 Daniel Jacobowitz <drow@mvista.com>
+
+ From Michael Fedrowitz <michael.fedrowitz@informatik.uni-ulm.de>:
+
+ * config/m68k/linux.mh: Remove core-regset.o.
+ * m68klinux-nat.c: Fix comment.
+ (supply_gregset): Change argument to elf_gregset_t *.
+ (supply_fpregset): Change argument to elf_fpregset_t *.
+ (fetch_core_registers): New function.
+ (linux_elf_core_fns): Define.
+ (_initialize_m68k_linux_nat): New function.
+
2001-07-11 Andrew Cagney <ac131313@redhat.com>
* configure.tgt: Mark d10v as pure multi-arch.
diff --git a/gdb/config/m68k/linux.mh b/gdb/config/m68k/linux.mh
index 20c1330..510274e 100644
--- a/gdb/config/m68k/linux.mh
+++ b/gdb/config/m68k/linux.mh
@@ -5,6 +5,6 @@ XDEPFILES=
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o \
- corelow.o core-aout.o core-regset.o m68klinux-nat.o linux-thread.o
+ corelow.o core-aout.o m68klinux-nat.o linux-thread.o
GDBSERVER_DEPFILES= low-linux.o
diff --git a/gdb/m68klinux-nat.c b/gdb/m68klinux-nat.c
index 414f0d4..8ab0aed 100644
--- a/gdb/m68klinux-nat.c
+++ b/gdb/m68klinux-nat.c
@@ -66,9 +66,9 @@ m68k_linux_register_u_addr (int blockend, int regnum)
return (blockend + 4 * regmap[regnum]);
}
-/* Given a pointer to a general register set in /proc format (gregset_t *),
- unpack the register contents and supply them as gdb's idea of the current
- register values. */
+/* Given a pointer to a general register set in /proc format
+ (elf_gregset_t *), unpack the register contents and supply
+ them as gdb's idea of the current register values. */
/* Note both m68k-tdep.c and m68klinux-nat.c contain definitions
@@ -85,7 +85,7 @@ m68k_linux_register_u_addr (int blockend, int regnum)
#include "gregset.h"
void
-supply_gregset (gregset_t *gregsetp)
+supply_gregset (elf_gregset_t *gregsetp)
{
int regi;
@@ -100,7 +100,7 @@ supply_gregset (gregset_t *gregsetp)
idea of the current floating point register values. */
void
-supply_fpregset (fpregset_t *fpregsetp)
+supply_fpregset (elf_fpregset_t *fpregsetp)
{
int regi;
@@ -112,6 +112,62 @@ supply_fpregset (fpregset_t *fpregsetp)
}
#endif
+
+
+/* Interpreting register set info found in core files. */
+
+/* Provide registers to GDB from a core file.
+
+ (We can't use the generic version of this function in
+ core-regset.c, because we need to use elf_gregset_t instead of
+ gregset_t.)
+
+ CORE_REG_SECT points to an array of bytes, which are the contents
+ of a `note' from a core file which BFD thinks might contain
+ register contents. CORE_REG_SIZE is its size.
+
+ WHICH says which register set corelow suspects this is:
+ 0 --- the general-purpose register set, in elf_gregset_t format
+ 2 --- the floating-point register set, in elf_fpregset_t format
+
+ REG_ADDR isn't used on Linux. */
+
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
+ int which, CORE_ADDR reg_addr)
+{
+ elf_gregset_t gregset;
+ elf_fpregset_t fpregset;
+
+ switch (which)
+ {
+ case 0:
+ if (core_reg_size != sizeof (gregset))
+ warning ("Wrong size gregset in core file.");
+ else
+ {
+ memcpy (&gregset, core_reg_sect, sizeof (gregset));
+ supply_gregset (&gregset);
+ }
+ break;
+
+ case 2:
+ if (core_reg_size != sizeof (fpregset))
+ warning ("Wrong size fpregset in core file.");
+ else
+ {
+ memcpy (&fpregset, core_reg_sect, sizeof (fpregset));
+ supply_fpregset (&fpregset);
+ }
+ break;
+
+ default:
+ /* We've covered all the kinds of registers we know about here,
+ so this must be something we wouldn't know what to do with
+ anyway. Just ignore it. */
+ break;
+ }
+}
int
@@ -153,3 +209,21 @@ in_sigtramp (CORE_ADDR pc)
return 0;
}
+
+
+/* Register that we are able to handle Linux ELF core file formats. */
+
+static struct core_fns linux_elf_core_fns =
+{
+ bfd_target_elf_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_core_registers, /* core_read_registers */
+ NULL /* next */
+};
+
+void
+_initialize_m68k_linux_nat ()
+{
+ add_core_fns (&linux_elf_core_fns);
+}