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authorHui Zhu <teawater@gmail.com>2010-08-05 03:03:36 +0000
committerHui Zhu <teawater@gmail.com>2010-08-05 03:03:36 +0000
commit50e8a0d53b037c640e313d57ddbe88db8eeea5bb (patch)
tree6673fd6626be39931f3285d758f8fa7ec9c0ab04 /gdb/mips-linux-tdep.c
parent966b060329894711be30d1aab7f295e61689cf1e (diff)
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2010-08-05 Hui Zhu <teawater@gmail.com>
* mips-linux-tdep.c(regset.h): New include. (mips_supply_gregset_wrapper, mips_fill_gregset_wrapper, mips_supply_fpregset_wrapper, mips_fill_fpregset_wrapper, mips64_supply_gregset_wrapper, mips64_fill_gregset_wrapper, mips64_supply_fpregset_wrapper, mips64_fill_fpregset_wrapper, mips_linux_regset_from_core_section): New functions. (fetch_core_registers, regset_core_fns): Deleted. (mips_linux_init_abi): Add mips_linux_regset_from_core_section. Deleted regset_core_fns. * mips-tdep.c(mips_gdbarch_init): Initialize tdep->gregset, tdep->gregset64, tdep->fpregset and tdep->fpregset64. * mips-tdep.h(gdbarch_tdep): Add gregset, gregset64, fpregset and fpregset64.
Diffstat (limited to 'gdb/mips-linux-tdep.c')
-rw-r--r--gdb/mips-linux-tdep.c153
1 files changed, 114 insertions, 39 deletions
diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c
index 6d0e7f6..8fe9a71 100644
--- a/gdb/mips-linux-tdep.c
+++ b/gdb/mips-linux-tdep.c
@@ -36,6 +36,7 @@
#include "solist.h"
#include "symtab.h"
#include "target-descriptions.h"
+#include "regset.h"
#include "mips-linux-tdep.h"
#include "glibc-tdep.h"
#include "linux-tdep.h"
@@ -127,6 +128,16 @@ mips_supply_gregset (struct regcache *regcache,
regcache_raw_supply (regcache, regi, zerobuf);
}
+static void
+mips_supply_gregset_wrapper (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips_elf_gregset_t));
+
+ mips_supply_gregset (regcache, (const mips_elf_gregset_t *)gregs);
+}
+
/* Pack our registers (or one register) into an elf_gregset_t. */
void
@@ -185,6 +196,16 @@ mips_fill_gregset (const struct regcache *regcache,
}
}
+static void
+mips_fill_gregset_wrapper (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips_elf_gregset_t));
+
+ mips_fill_gregset (regcache, (mips_elf_gregset_t *)gregs, regnum);
+}
+
/* Likewise, unpack an elf_fpregset_t. */
void
@@ -212,6 +233,16 @@ mips_supply_fpregset (struct regcache *regcache,
zerobuf);
}
+static void
+mips_supply_fpregset_wrapper (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips_elf_fpregset_t));
+
+ mips_supply_fpregset (regcache, (const mips_elf_fpregset_t *)gregs);
+}
+
/* Likewise, pack one or all floating point registers into an
elf_fpregset_t. */
@@ -245,6 +276,16 @@ mips_fill_fpregset (const struct regcache *regcache,
}
}
+static void
+mips_fill_fpregset_wrapper (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips_elf_fpregset_t));
+
+ mips_fill_fpregset (regcache, (mips_elf_fpregset_t *)gregs, regnum);
+}
+
/* Support for 64-bit ABIs. */
/* Figure out where the longjmp will land.
@@ -342,6 +383,16 @@ mips64_supply_gregset (struct regcache *regcache,
regcache_raw_supply (regcache, regi, zerobuf);
}
+static void
+mips64_supply_gregset_wrapper (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips64_elf_gregset_t));
+
+ mips64_supply_gregset (regcache, (const mips64_elf_gregset_t *)gregs);
+}
+
/* Pack our registers (or one register) into a 64-bit elf_gregset_t. */
void
@@ -402,6 +453,16 @@ mips64_fill_gregset (const struct regcache *regcache,
}
}
+static void
+mips64_fill_gregset_wrapper (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips64_elf_gregset_t));
+
+ mips64_fill_gregset (regcache, (mips64_elf_gregset_t *)gregs, regnum);
+}
+
/* Likewise, unpack an elf_fpregset_t. */
void
@@ -440,6 +501,16 @@ mips64_supply_fpregset (struct regcache *regcache,
(const gdb_byte *)(*fpregsetp + 32) + 4);
}
+static void
+mips64_supply_fpregset_wrapper (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips64_elf_fpregset_t));
+
+ mips64_supply_fpregset (regcache, (const mips64_elf_fpregset_t *)gregs);
+}
+
/* Likewise, pack one or all floating point registers into an
elf_fpregset_t. */
@@ -508,72 +579,75 @@ mips64_fill_fpregset (const struct regcache *regcache,
}
}
+static void
+mips64_fill_fpregset_wrapper (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len)
+{
+ gdb_assert (len == sizeof (mips64_elf_fpregset_t));
-/* Use a local version of this function to get the correct types for
- regsets, until multi-arch core support is ready. */
+ mips64_fill_fpregset (regcache, (mips64_elf_fpregset_t *)gregs, regnum);
+}
-static void
-fetch_core_registers (struct regcache *regcache,
- char *core_reg_sect, unsigned core_reg_size,
- int which, CORE_ADDR reg_addr)
+const struct regset *
+mips_linux_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
mips_elf_gregset_t gregset;
mips_elf_fpregset_t fpregset;
mips64_elf_gregset_t gregset64;
mips64_elf_fpregset_t fpregset64;
- if (which == 0)
+ if (strcmp (sect_name, ".reg") == 0)
{
- if (core_reg_size == sizeof (gregset))
+ if (sect_size == sizeof (gregset))
{
- memcpy ((char *) &gregset, core_reg_sect, sizeof (gregset));
- mips_supply_gregset (regcache,
- (const mips_elf_gregset_t *) &gregset);
+ if (tdep->gregset == NULL)
+ tdep->gregset = regset_alloc (gdbarch,
+ mips_supply_gregset_wrapper,
+ mips_fill_gregset_wrapper);
+ return tdep->gregset;
}
- else if (core_reg_size == sizeof (gregset64))
+ else if (sect_size == sizeof (gregset64))
{
- memcpy ((char *) &gregset64, core_reg_sect, sizeof (gregset64));
- mips64_supply_gregset (regcache,
- (const mips64_elf_gregset_t *) &gregset64);
+ if (tdep->gregset64 == NULL)
+ tdep->gregset64 = regset_alloc (gdbarch,
+ mips64_supply_gregset_wrapper,
+ mips64_fill_gregset_wrapper);
+ return tdep->gregset64;
}
else
{
warning (_("wrong size gregset struct in core file"));
}
}
- else if (which == 2)
+ else if (strcmp (sect_name, ".reg2") == 0)
{
- if (core_reg_size == sizeof (fpregset))
+ if (sect_size == sizeof (fpregset))
{
- memcpy ((char *) &fpregset, core_reg_sect, sizeof (fpregset));
- mips_supply_fpregset (regcache,
- (const mips_elf_fpregset_t *) &fpregset);
+ if (tdep->fpregset == NULL)
+ tdep->fpregset = regset_alloc (gdbarch,
+ mips_supply_fpregset_wrapper,
+ mips_fill_fpregset_wrapper);
+ return tdep->fpregset;
}
- else if (core_reg_size == sizeof (fpregset64))
+ else if (sect_size == sizeof (fpregset64))
{
- memcpy ((char *) &fpregset64, core_reg_sect,
- sizeof (fpregset64));
- mips64_supply_fpregset (regcache,
- (const mips64_elf_fpregset_t *) &fpregset64);
+ if (tdep->fpregset64 == NULL)
+ tdep->fpregset64 = regset_alloc (gdbarch,
+ mips64_supply_fpregset_wrapper,
+ mips64_fill_fpregset_wrapper);
+ return tdep->fpregset64;
}
else
{
warning (_("wrong size fpregset struct in core file"));
}
}
-}
-
-/* Register that we are able to handle ELF file formats using standard
- procfs "regset" structures. */
-static struct core_fns regset_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 */
-};
+ return NULL;
+}
static const struct target_desc *
mips_linux_core_read_description (struct gdbarch *gdbarch,
@@ -1206,6 +1280,9 @@ mips_linux_init_abi (struct gdbarch_info info,
set_gdbarch_core_read_description (gdbarch,
mips_linux_core_read_description);
+ set_gdbarch_regset_from_core_section (gdbarch,
+ mips_linux_regset_from_core_section);
+
tdep->syscall_next_pc = mips_linux_syscall_next_pc;
if (tdesc_data)
@@ -1243,6 +1320,4 @@ _initialize_mips_linux_tdep (void)
GDB_OSABI_LINUX,
mips_linux_init_abi);
}
-
- deprecated_add_core_fns (&regset_core_fns);
}