mirror of
https://github.com/espressif/binutils-gdb.git
synced 2025-06-26 13:56:22 +08:00
f9be684a36
* ppc-tdep.h: Update copyright.
(ppc_linux_supply_gregset, ppc_linux_supply_fpregset): Change
function signatures to match "regsets.h".
* ppc-linux-tdep.c: Include "regset.h".
(ELF_GREGSET_SIZE): Delete.
(right_supply_register): New function.
(ppc_linux_supply_fpregset, ppc_linux_supply_gregset): Rewrite
using right_supply_register.
(ppc32_linux_supply_gregset, ppc64_linux_supply_gregset): New
functions.
(ppc64_linux_gregset, ppc32_linux_gregset): Define.
(ppc_linux_init_abi): Register ppc_linux_regset_from_core_section.
(_initialize_ppc_linux_tdep): Do not register
ppc_linux_regset_core_fns.
(ppc_linux_regset_from_core_section): Replace
fetch_core_registers.
(ppc_linux_regset_core_fns): Delete.
* ppc-linux-nat.c: (right_fill_reg): New function.
(supply_gregset): Update call to ppc_linux_supply_gregset.
(fill_gregset): Clear the register set, use right_fill_reg.
(supply_fpregset): Update call to ppc_linux_supply_fpregset.
(fill_fpregset): Use right_fill_reg, correctly compute FP offsets.
Index: ppc-linux-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/ppc-linux-nat.c,v
retrieving revision 1.28
diff -u -r1.28 ppc-linux-nat.c
--- ppc-linux-nat.c 8 Mar 2004 01:45:02 -0000 1.28
+++ ppc-linux-nat.c 15 Mar 2004 21:28:31 -0000
@@ -507,7 +507,24 @@
void
supply_gregset (gdb_gregset_t *gregsetp)
{
- ppc_linux_supply_gregset ((char *) gregsetp);
+ /* NOTE: cagney/2003-11-25: This is the word size used by the ptrace
+ interface, and not the wordsize of the program's ABI. */
+ int wordsize = sizeof (PTRACE_XFER_TYPE);
+ ppc_linux_supply_gregset (current_regcache, -1, gregsetp,
+ sizeof (gdb_gregset_t), wordsize);
+}
+
+static void
+right_fill_reg (int regnum, void *reg)
+{
+ /* NOTE: cagney/2003-11-25: This is the word size used by the ptrace
+ interface, and not the wordsize of the program's ABI. */
+ int wordsize = sizeof (PTRACE_XFER_TYPE);
+ /* Right fill the register. */
+ regcache_raw_collect (current_regcache, regnum,
+ ((bfd_byte *) reg
+ + wordsize
+ - register_size (current_gdbarch, regnum)));
}
void
@@ -516,36 +533,42 @@
int regi;
elf_greg_t *regp = (elf_greg_t *) gregsetp;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ const int elf_ngreg = 48;
+
+
+ /* Start with zeros. */
+ memset (regp, 0, elf_ngreg * sizeof (*regp));
for (regi = 0; regi < 32; regi++)
{
if ((regno == -1) || regno == regi)
- regcache_collect (regi, regp + PT_R0 + regi);
+ right_fill_reg (regi, (regp + PT_R0 + regi));
}
if ((regno == -1) || regno == PC_REGNUM)
- regcache_collect (PC_REGNUM, regp + PT_NIP);
+ right_fill_reg (PC_REGNUM, regp + PT_NIP);
if ((regno == -1) || regno == tdep->ppc_lr_regnum)
- regcache_collect (tdep->ppc_lr_regnum, regp + PT_LNK);
+ right_fill_reg (tdep->ppc_lr_regnum, regp + PT_LNK);
if ((regno == -1) || regno == tdep->ppc_cr_regnum)
regcache_collect (tdep->ppc_cr_regnum, regp + PT_CCR);
if ((regno == -1) || regno == tdep->ppc_xer_regnum)
regcache_collect (tdep->ppc_xer_regnum, regp + PT_XER);
if ((regno == -1) || regno == tdep->ppc_ctr_regnum)
- regcache_collect (tdep->ppc_ctr_regnum, regp + PT_CTR);
+ right_fill_reg (tdep->ppc_ctr_regnum, regp + PT_CTR);
#ifdef PT_MQ
if (((regno == -1) || regno == tdep->ppc_mq_regnum)
&& (tdep->ppc_mq_regnum != -1))
- regcache_collect (tdep->ppc_mq_regnum, regp + PT_MQ);
+ right_fill_reg (tdep->ppc_mq_regnum, regp + PT_MQ);
#endif
if ((regno == -1) || regno == tdep->ppc_ps_regnum)
- regcache_collect (tdep->ppc_ps_regnum, regp + PT_MSR);
+ right_fill_reg (tdep->ppc_ps_regnum, regp + PT_MSR);
}
void
supply_fpregset (gdb_fpregset_t * fpregsetp)
{
- ppc_linux_supply_fpregset ((char *) fpregsetp);
+ ppc_linux_supply_fpregset (NULL, current_regcache, -1, fpregsetp,
+ sizeof (gdb_fpregset_t));
}
/* Given a pointer to a floating point register set in /proc format
@@ -557,12 +580,13 @@
{
int regi;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ bfd_byte *fpp = (void *) fpregsetp;
for (regi = 0; regi < 32; regi++)
{
if ((regno == -1) || (regno == FP0_REGNUM + regi))
- regcache_collect (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
+ regcache_collect (FP0_REGNUM + regi, fpp + 8 * regi);
}
if ((regno == -1) || regno == tdep->ppc_fpscr_regnum)
- regcache_collect (tdep->ppc_fpscr_regnum, (char *) (*fpregsetp + regi));
+ right_fill_reg (tdep->ppc_fpscr_regnum, (fpp + 8 * 32));
}
Index: ppc-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/ppc-linux-tdep.c,v
retrieving revision 1.50
diff -u -r1.50 ppc-linux-tdep.c
--- ppc-linux-tdep.c 16 Feb 2004 21:49:22 -0000 1.50
+++ ppc-linux-tdep.c 15 Mar 2004 21:28:31 -0000
@@ -32,7 +32,7 @@
#include "regcache.h"
#include "value.h"
#include "osabi.h"
-
+#include "regset.h"
#include "solib-svr4.h"
#include "ppc-tdep.h"
@@ -959,81 +959,114 @@
};
enum {
- ELF_GREGSET_SIZE = (ELF_NGREG * 4),
ELF_FPREGSET_SIZE = (ELF_NFPREG * 8)
};
+static void
+right_supply_register (struct regcache *regcache, int wordsize, int regnum,
+ const bfd_byte *buf)
+{
+ regcache_raw_supply (regcache, regnum,
+ (buf + wordsize
+ - register_size (current_gdbarch, regnum)));
+}
+
+/* Extract the register values found in the WORDSIZED ABI GREGSET,
+ storing their values in REGCACHE. Note that some are left-aligned,
+ while others are right aligned. */
+
void
-ppc_linux_supply_gregset (char *buf)
+ppc_linux_supply_gregset (struct regcache *regcache,
+ int regnum, const void *gregs, size_t size,
+ int wordsize)
{
int regi;
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ struct gdbarch *regcache_arch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *regcache_tdep = gdbarch_tdep (regcache_arch);
+ const bfd_byte *buf = gregs;
for (regi = 0; regi < 32; regi++)
- supply_register (regi, buf + 4 * regi);
+ right_supply_register (regcache, wordsize, regi, buf + wordsize * regi);
+
+ right_supply_register (regcache, wordsize, gdbarch_pc_regnum (regcache_arch),
+ buf + wordsize * PPC_LINUX_PT_NIP);
+ right_supply_register (regcache, wordsize, regcache_tdep->ppc_lr_regnum,
+ buf + wordsize * PPC_LINUX_PT_LNK);
+ regcache_raw_supply (regcache, regcache_tdep->ppc_cr_regnum,
+ buf + wordsize * PPC_LINUX_PT_CCR);
+ regcache_raw_supply (regcache, regcache_tdep->ppc_xer_regnum,
+ buf + wordsize * PPC_LINUX_PT_XER);
+ regcache_raw_supply (regcache, regcache_tdep->ppc_ctr_regnum,
+ buf + wordsize * PPC_LINUX_PT_CTR);
+ if (regcache_tdep->ppc_mq_regnum != -1)
+ right_supply_register (regcache, wordsize, regcache_tdep->ppc_mq_regnum,
+ buf + wordsize * PPC_LINUX_PT_MQ);
+ right_supply_register (regcache, wordsize, regcache_tdep->ppc_ps_regnum,
+ buf + wordsize * PPC_LINUX_PT_MSR);
+}
- supply_register (PC_REGNUM, buf + 4 * PPC_LINUX_PT_NIP);
- supply_register (tdep->ppc_lr_regnum, buf + 4 * PPC_LINUX_PT_LNK);
- supply_register (tdep->ppc_cr_regnum, buf + 4 * PPC_LINUX_PT_CCR);
- supply_register (tdep->ppc_xer_regnum, buf + 4 * PPC_LINUX_PT_XER);
- supply_register (tdep->ppc_ctr_regnum, buf + 4 * PPC_LINUX_PT_CTR);
- if (tdep->ppc_mq_regnum != -1)
- supply_register (tdep->ppc_mq_regnum, buf + 4 * PPC_LINUX_PT_MQ);
- supply_register (tdep->ppc_ps_regnum, buf + 4 * PPC_LINUX_PT_MSR);
+static void
+ppc32_linux_supply_gregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t size)
+{
+ ppc_linux_supply_gregset (regcache, regnum, gregs, size, 4);
}
+static struct regset ppc32_linux_gregset = {
+ NULL, ppc32_linux_supply_gregset
+};
+
+static void
+ppc64_linux_supply_gregset (const struct regset *regset,
+ struct regcache * regcache,
+ int regnum, const void *gregs, size_t size)
+{
+ ppc_linux_supply_gregset (regcache, regnum, gregs, size, 8);
+}
+
+static struct regset ppc64_linux_gregset = {
+ NULL, ppc64_linux_supply_gregset
+};
+
void
-ppc_linux_supply_fpregset (char *buf)
+ppc_linux_supply_fpregset (const struct regset *regset,
+ struct regcache * regcache,
+ int regnum, const void *fpset, size_t size)
{
int regi;
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ struct gdbarch *regcache_arch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *regcache_tdep = gdbarch_tdep (regcache_arch);
+ const bfd_byte *buf = fpset;
for (regi = 0; regi < 32; regi++)
- supply_register (FP0_REGNUM + regi, buf + 8 * regi);
+ regcache_raw_supply (regcache, FP0_REGNUM + regi, buf + 8 * regi);
/* The FPSCR is stored in the low order word of the last doubleword in the
fpregset. */
- supply_register (tdep->ppc_fpscr_regnum, buf + 8 * 32 + 4);
+ regcache_raw_supply (regcache, regcache_tdep->ppc_fpscr_regnum,
+ buf + 8 * 32 + 4);
}
-/*
- Use a local version of this function to get the correct types for regsets.
-*/
+static struct regset ppc_linux_fpregset = { NULL, ppc_linux_supply_fpregset };
-static void
-fetch_core_registers (char *core_reg_sect,
- unsigned core_reg_size,
- int which,
- CORE_ADDR reg_addr)
+static const struct regset *
+ppc_linux_regset_from_core_section (struct gdbarch *core_arch,
+ const char *sect_name, size_t sect_size)
{
- if (which == 0)
+ struct gdbarch_tdep *tdep = gdbarch_tdep (core_arch);
+ if (strcmp (sect_name, ".reg") == 0)
{
- if (core_reg_size == ELF_GREGSET_SIZE)
- ppc_linux_supply_gregset (core_reg_sect);
+ if (tdep->wordsize == 4)
+ return &ppc32_linux_gregset;
else
- warning ("wrong size gregset struct in core file");
- }
- else if (which == 2)
- {
- if (core_reg_size == ELF_FPREGSET_SIZE)
- ppc_linux_supply_fpregset (core_reg_sect);
- else
- warning ("wrong size fpregset struct in core file");
+ return &ppc64_linux_gregset;
}
+ if (strcmp (sect_name, ".reg2") == 0)
+ return &ppc_linux_fpregset;
+ return NULL;
}
-/* Register that we are able to handle ELF file formats using standard
- procfs "regset" structures. */
-
-static struct core_fns ppc_linux_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 */
-};
-
static void
ppc_linux_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
@@ -1086,6 +1119,7 @@
/* PPC64 malloc's entry-point is called ".malloc". */
set_gdbarch_name_of_malloc (gdbarch, ".malloc");
}
+ set_gdbarch_regset_from_core_section (gdbarch, ppc_linux_regset_from_core_section);
}
void
@@ -1099,5 +1133,4 @@
ppc_linux_init_abi);
gdbarch_register_osabi (bfd_arch_rs6000, bfd_mach_rs6k, GDB_OSABI_LINUX,
ppc_linux_init_abi);
- add_core_fns (&ppc_linux_regset_core_fns);
}
Index: ppc-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/ppc-tdep.h,v
retrieving revision 1.25
diff -u -r1.25 ppc-tdep.h
--- ppc-tdep.h 10 Nov 2003 22:47:28 -0000 1.25
+++ ppc-tdep.h 15 Mar 2004 21:28:31 -0000
@@ -1,6 +1,7 @@
/* Target-dependent code for GDB, the GNU debugger.
- Copyright 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+
+ Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
+ Inc.
This file is part of GDB.
@@ -62,8 +63,12 @@
CORE_ADDR bpaddr);
int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
-void ppc_linux_supply_gregset (char *buf);
-void ppc_linux_supply_fpregset (char *buf);
+void ppc_linux_supply_gregset (struct regcache *regcache,
+ int regnum, const void *gregs, size_t size,
+ int wordsize);
+void ppc_linux_supply_fpregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t size);
enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
struct type *valtype,
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.