/* SPU native-dependent code for GDB, the GNU debugger.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
+ Free Software Foundation, Inc.
Contributed by Ulrich Weigand <uweigand@de.ibm.com>.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbcore.h"
#include "regcache.h"
#include "symfile.h"
#include "gdb_wait.h"
+#include "gdbthread.h"
#include <sys/ptrace.h>
#include <asm/ptrace.h>
/* Fetch PPU register REGNO. */
-static CORE_ADDR
+static ULONGEST
fetch_ppc_register (int regno)
{
PTRACE_TYPE_RET res;
ptrace (PPC_PTRACE_PEEKUSR_3264, tid,
(PTRACE_TYPE_ARG3) (regno * 8 + 4), buf + 4);
if (errno == 0)
- return (CORE_ADDR) *(unsigned long long *)buf;
+ return (ULONGEST) *(uint64_t *)buf;
}
#endif
perror_with_name (_(mess));
}
- return (CORE_ADDR) (unsigned long) res;
+ return (ULONGEST) (unsigned long) res;
}
/* Fetch WORD from PPU memory at (aligned) MEMADDR in thread TID. */
static int
-fetch_ppc_memory_1 (int tid, CORE_ADDR memaddr, PTRACE_TYPE_RET *word)
+fetch_ppc_memory_1 (int tid, ULONGEST memaddr, PTRACE_TYPE_RET *word)
{
errno = 0;
#ifndef __powerpc64__
if (memaddr >> 32)
{
- unsigned long long addr_8 = (unsigned long long) memaddr;
+ uint64_t addr_8 = (uint64_t) memaddr;
ptrace (PPC_PTRACE_PEEKTEXT_3264, tid, (PTRACE_TYPE_ARG3) &addr_8, word);
}
else
/* Store WORD into PPU memory at (aligned) MEMADDR in thread TID. */
static int
-store_ppc_memory_1 (int tid, CORE_ADDR memaddr, PTRACE_TYPE_RET word)
+store_ppc_memory_1 (int tid, ULONGEST memaddr, PTRACE_TYPE_RET word)
{
errno = 0;
#ifndef __powerpc64__
if (memaddr >> 32)
{
- unsigned long long addr_8 = (unsigned long long) memaddr;
+ uint64_t addr_8 = (uint64_t) memaddr;
ptrace (PPC_PTRACE_POKEDATA_3264, tid, (PTRACE_TYPE_ARG3) &addr_8, word);
}
else
/* Fetch LEN bytes of PPU memory at MEMADDR to MYADDR. */
static int
-fetch_ppc_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
+fetch_ppc_memory (ULONGEST memaddr, gdb_byte *myaddr, int len)
{
int i, ret;
- CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_TYPE_RET);
+ ULONGEST addr = memaddr & -(ULONGEST) sizeof (PTRACE_TYPE_RET);
int count = ((((memaddr + len) - addr) + sizeof (PTRACE_TYPE_RET) - 1)
/ sizeof (PTRACE_TYPE_RET));
PTRACE_TYPE_RET *buffer;
buffer = (PTRACE_TYPE_RET *) alloca (count * sizeof (PTRACE_TYPE_RET));
for (i = 0; i < count; i++, addr += sizeof (PTRACE_TYPE_RET))
- if ((ret = fetch_ppc_memory_1 (tid, addr, &buffer[i])) != 0)
- return ret;
+ {
+ ret = fetch_ppc_memory_1 (tid, addr, &buffer[i]);
+ if (ret)
+ return ret;
+ }
memcpy (myaddr,
(char *) buffer + (memaddr & (sizeof (PTRACE_TYPE_RET) - 1)),
/* Store LEN bytes from MYADDR to PPU memory at MEMADDR. */
static int
-store_ppc_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len)
+store_ppc_memory (ULONGEST memaddr, const gdb_byte *myaddr, int len)
{
int i, ret;
- CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_TYPE_RET);
+ ULONGEST addr = memaddr & -(ULONGEST) sizeof (PTRACE_TYPE_RET);
int count = ((((memaddr + len) - addr) + sizeof (PTRACE_TYPE_RET) - 1)
/ sizeof (PTRACE_TYPE_RET));
PTRACE_TYPE_RET *buffer;
buffer = (PTRACE_TYPE_RET *) alloca (count * sizeof (PTRACE_TYPE_RET));
if (addr != memaddr || len < (int) sizeof (PTRACE_TYPE_RET))
- if ((ret = fetch_ppc_memory_1 (tid, addr, &buffer[0])) != 0)
- return ret;
+ {
+ ret = fetch_ppc_memory_1 (tid, addr, &buffer[0]);
+ if (ret)
+ return ret;
+ }
if (count > 1)
- if ((ret = fetch_ppc_memory_1 (tid, addr + (count - 1)
+ {
+ ret = fetch_ppc_memory_1 (tid, addr + (count - 1)
* sizeof (PTRACE_TYPE_RET),
- &buffer[count - 1])) != 0)
- return ret;
+ &buffer[count - 1]);
+ if (ret)
+ return ret;
+ }
memcpy ((char *) buffer + (memaddr & (sizeof (PTRACE_TYPE_RET) - 1)),
myaddr, len);
for (i = 0; i < count; i++, addr += sizeof (PTRACE_TYPE_RET))
- if ((ret = store_ppc_memory_1 (tid, addr, buffer[i])) != 0)
- return ret;
+ {
+ ret = store_ppc_memory_1 (tid, addr, buffer[i]);
+ if (ret)
+ return ret;
+ }
return 0;
}
return to FD and ADDR the file handle and NPC parameter address
used with the system call. Return non-zero if successful. */
static int
-parse_spufs_run (int *fd, CORE_ADDR *addr)
+parse_spufs_run (int *fd, ULONGEST *addr)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
gdb_byte buf[4];
- CORE_ADDR pc = fetch_ppc_register (32); /* nip */
+ ULONGEST pc = fetch_ppc_register (32); /* nip */
/* Fetch instruction preceding current NIP. */
if (fetch_ppc_memory (pc-4, buf, 4) != 0)
return 0;
/* It should be a "sc" instruction. */
- if (extract_unsigned_integer (buf, 4) != INSTR_SC)
+ if (extract_unsigned_integer (buf, 4, byte_order) != INSTR_SC)
return 0;
/* System call number should be NR_spu_run. */
if (fetch_ppc_register (0) != NR_spu_run)
&& lseek (fd, (off_t) offset, SEEK_SET) != (off_t) offset)
{
close (fd);
- return -1;
+ return 0;
}
if (writebuf)
spu_bfd_iovec_pread (struct bfd *abfd, void *stream, void *buf,
file_ptr nbytes, file_ptr offset)
{
- CORE_ADDR addr = *(CORE_ADDR *)stream;
+ ULONGEST addr = *(ULONGEST *)stream;
if (fetch_ppc_memory (addr + offset, buf, nbytes) != 0)
{
}
static bfd *
-spu_bfd_open (CORE_ADDR addr)
+spu_bfd_open (ULONGEST addr)
{
struct bfd *nbfd;
+ asection *spu_name;
- CORE_ADDR *open_closure = xmalloc (sizeof (CORE_ADDR));
+ ULONGEST *open_closure = xmalloc (sizeof (ULONGEST));
*open_closure = addr;
nbfd = bfd_openr_iovec (xstrdup ("<in-memory>"), "elf32-spu",
return NULL;
}
+ /* Retrieve SPU name note and update BFD name. */
+ spu_name = bfd_get_section_by_name (nbfd, ".note.spu_name");
+ if (spu_name)
+ {
+ int sect_size = bfd_section_size (nbfd, spu_name);
+ if (sect_size > 20)
+ {
+ char *buf = alloca (sect_size - 20 + 1);
+ bfd_get_section_contents (nbfd, spu_name, buf, 20, sect_size - 20);
+ buf[sect_size - 20] = '\0';
+
+ xfree ((char *)nbfd->filename);
+ nbfd->filename = xstrdup (buf);
+ }
+ }
+
return nbfd;
}
static void
spu_symbol_file_add_from_memory (int inferior_fd)
{
- CORE_ADDR addr;
+ ULONGEST addr;
struct bfd *nbfd;
char id[128];
if (len <= 0 || len >= sizeof id)
return;
id[len] = 0;
- if (sscanf (id, "0x%llx", &addr) != 1)
+ addr = strtoulst (id, NULL, 16);
+ if (!addr)
return;
/* Open BFD representing SPE executable and read its symbols. */
nbfd = spu_bfd_open (addr);
if (nbfd)
- symbol_file_add_from_bfd (nbfd, 0, NULL, 1, 0);
+ symbol_file_add_from_bfd (nbfd, SYMFILE_VERBOSE | SYMFILE_MAINLINE,
+ NULL, 0);
}
spu_child_post_startup_inferior (ptid_t ptid)
{
int fd;
- CORE_ADDR addr;
+ ULONGEST addr;
int tid = TIDGET (ptid);
if (tid == 0)
spu_child_post_attach (int pid)
{
int fd;
- CORE_ADDR addr;
+ ULONGEST addr;
/* Like child_post_startup_inferior, if we happened to attach to
the inferior while it wasn't currently in spu_run, continue
/* Wait for child PTID to do something. Return id of the child,
minus_one_ptid in case of error; store status into *OURSTATUS. */
static ptid_t
-spu_child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
+spu_child_wait (struct target_ops *ops,
+ ptid_t ptid, struct target_waitstatus *ourstatus, int options)
{
int save_errno;
int status;
{
set_sigint_trap (); /* Causes SIGINT to be passed on to the
attached process. */
- set_sigio_trap ();
pid = waitpid (PIDGET (ptid), &status, 0);
if (pid == -1 && errno == ECHILD)
save_errno = EINTR;
}
- clear_sigio_trap ();
clear_sigint_trap ();
}
while (pid == -1 && save_errno == EINTR);
if (pid == -1)
{
- warning ("Child process unexpectedly missing: %s",
+ warning (_("Child process unexpectedly missing: %s"),
safe_strerror (save_errno));
/* Claim it exited with unknown signal. */
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
- return minus_one_ptid;
+ return inferior_ptid;
}
store_waitstatus (ourstatus, status);
/* Override the fetch_inferior_register routine. */
static void
-spu_fetch_inferior_registers (int regno)
+spu_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
int fd;
- CORE_ADDR addr;
+ ULONGEST addr;
/* We must be stopped on a spu_run system call. */
if (!parse_spufs_run (&fd, &addr))
/* The ID register holds the spufs file handle. */
if (regno == -1 || regno == SPU_ID_REGNUM)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
char buf[4];
- store_unsigned_integer (buf, 4, fd);
- regcache_raw_supply (current_regcache, SPU_ID_REGNUM, buf);
+ store_unsigned_integer (buf, 4, byte_order, fd);
+ regcache_raw_supply (regcache, SPU_ID_REGNUM, buf);
}
/* The NPC register is found at ADDR. */
{
gdb_byte buf[4];
if (fetch_ppc_memory (addr, buf, 4) == 0)
- regcache_raw_supply (current_regcache, SPU_PC_REGNUM, buf);
+ regcache_raw_supply (regcache, SPU_PC_REGNUM, buf);
}
/* The GPRs are found in the "regs" spufs file. */
xsnprintf (annex, sizeof annex, "%d/regs", fd);
if (spu_proc_xfer_spu (annex, buf, NULL, 0, sizeof buf) == sizeof buf)
for (i = 0; i < SPU_NUM_GPRS; i++)
- regcache_raw_supply (current_regcache, i, buf + i*16);
+ regcache_raw_supply (regcache, i, buf + i*16);
}
}
/* Override the store_inferior_register routine. */
static void
-spu_store_inferior_registers (int regno)
+spu_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
int fd;
- CORE_ADDR addr;
+ ULONGEST addr;
/* We must be stopped on a spu_run system call. */
if (!parse_spufs_run (&fd, &addr))
if (regno == -1 || regno == SPU_PC_REGNUM)
{
gdb_byte buf[4];
- regcache_raw_collect (current_regcache, SPU_PC_REGNUM, buf);
+ regcache_raw_collect (regcache, SPU_PC_REGNUM, buf);
store_ppc_memory (addr, buf, 4);
}
int i;
for (i = 0; i < SPU_NUM_GPRS; i++)
- regcache_raw_collect (current_regcache, i, buf + i*16);
+ regcache_raw_collect (regcache, i, buf + i*16);
xsnprintf (annex, sizeof annex, "%d/regs", fd);
spu_proc_xfer_spu (annex, NULL, buf, 0, sizeof buf);
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
{
+ if (object == TARGET_OBJECT_SPU)
+ return spu_proc_xfer_spu (annex, readbuf, writebuf, offset, len);
+
if (object == TARGET_OBJECT_MEMORY)
{
int fd;
- CORE_ADDR addr;
- char mem_annex[32];
+ ULONGEST addr;
+ char mem_annex[32], lslr_annex[32];
+ gdb_byte buf[32];
+ ULONGEST lslr;
+ LONGEST ret;
/* We must be stopped on a spu_run system call. */
if (!parse_spufs_run (&fd, &addr))
/* Use the "mem" spufs file to access SPU local store. */
xsnprintf (mem_annex, sizeof mem_annex, "%d/mem", fd);
- return spu_proc_xfer_spu (mem_annex, readbuf, writebuf, offset, len);
+ ret = spu_proc_xfer_spu (mem_annex, readbuf, writebuf, offset, len);
+ if (ret > 0)
+ return ret;
+
+ /* SPU local store access wraps the address around at the
+ local store limit. We emulate this here. To avoid needing
+ an extra access to retrieve the LSLR, we only do that after
+ trying the original address first, and getting end-of-file. */
+ xsnprintf (lslr_annex, sizeof lslr_annex, "%d/lslr", fd);
+ memset (buf, 0, sizeof buf);
+ if (spu_proc_xfer_spu (lslr_annex, buf, NULL, 0, sizeof buf) <= 0)
+ return ret;
+
+ lslr = strtoulst (buf, NULL, 16);
+ return spu_proc_xfer_spu (mem_annex, readbuf, writebuf,
+ offset & lslr, len);
}
- return 0;
+ return -1;
}
/* Override the to_can_use_hw_breakpoint routine. */
/* Register SPU target. */
add_target (t);
}
-
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