/* SPU native-dependent code for GDB, the GNU debugger.
- Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2006-2016 Free Software Foundation, Inc.
Contributed by Ulrich Weigand <uweigand@de.ibm.com>.
#include "defs.h"
#include "gdbcore.h"
-#include "gdb_string.h"
#include "target.h"
#include "inferior.h"
+#include "inf-child.h"
#include "inf-ptrace.h"
#include "regcache.h"
#include "symfile.h"
#include "gdb_wait.h"
#include "gdbthread.h"
+#include "gdb_bfd.h"
-#include <sys/ptrace.h>
+#include "nat/gdb_ptrace.h"
#include <asm/ptrace.h>
#include <sys/types.h>
-#include <sys/param.h>
#include "spu-tdep.h"
{
PTRACE_TYPE_RET res;
- int tid = TIDGET (inferior_ptid);
+ int tid = ptid_get_lwp (inferior_ptid);
if (tid == 0)
- tid = PIDGET (inferior_ptid);
+ tid = ptid_get_pid (inferior_ptid);
#ifndef __powerpc64__
/* If running as a 32-bit process on a 64-bit system, we attempt
/ sizeof (PTRACE_TYPE_RET));
PTRACE_TYPE_RET *buffer;
- int tid = TIDGET (inferior_ptid);
+ int tid = ptid_get_lwp (inferior_ptid);
if (tid == 0)
- tid = PIDGET (inferior_ptid);
+ tid = ptid_get_pid (inferior_ptid);
buffer = (PTRACE_TYPE_RET *) alloca (count * sizeof (PTRACE_TYPE_RET));
for (i = 0; i < count; i++, addr += sizeof (PTRACE_TYPE_RET))
/ sizeof (PTRACE_TYPE_RET));
PTRACE_TYPE_RET *buffer;
- int tid = TIDGET (inferior_ptid);
+ int tid = ptid_get_lwp (inferior_ptid);
if (tid == 0)
- tid = PIDGET (inferior_ptid);
+ tid = ptid_get_pid (inferior_ptid);
buffer = (PTRACE_TYPE_RET *) alloca (count * sizeof (PTRACE_TYPE_RET));
static int
parse_spufs_run (int *fd, ULONGEST *addr)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
gdb_byte buf[4];
ULONGEST pc = fetch_ppc_register (32); /* 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)
}
-/* Copy LEN bytes at OFFSET in spufs file ANNEX into/from READBUF or WRITEBUF,
+/* Implement the to_xfer_partial target_ops method for TARGET_OBJECT_SPU.
+ Copy LEN bytes at OFFSET in spufs file ANNEX into/from READBUF or WRITEBUF,
using the /proc file system. */
-static LONGEST
+
+static enum target_xfer_status
spu_proc_xfer_spu (const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf,
- ULONGEST offset, LONGEST len)
+ ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
{
char buf[128];
int fd = 0;
int ret = -1;
- int pid = PIDGET (inferior_ptid);
+ int pid = ptid_get_pid (inferior_ptid);
if (!annex)
- return 0;
+ return TARGET_XFER_EOF;
xsnprintf (buf, sizeof buf, "/proc/%d/fd/%s", pid, annex);
fd = open (buf, writebuf? O_WRONLY : O_RDONLY);
if (fd <= 0)
- return -1;
+ return TARGET_XFER_E_IO;
if (offset != 0
&& lseek (fd, (off_t) offset, SEEK_SET) != (off_t) offset)
{
close (fd);
- return 0;
+ return TARGET_XFER_EOF;
}
if (writebuf)
ret = read (fd, readbuf, (size_t) len);
close (fd);
- return ret;
+ if (ret < 0)
+ return TARGET_XFER_E_IO;
+ else if (ret == 0)
+ return TARGET_XFER_EOF;
+ else
+ {
+ *xfered_len = (ULONGEST) ret;
+ return TARGET_XFER_OK;
+ }
}
spu_bfd_iovec_close (struct bfd *nbfd, void *stream)
{
xfree (stream);
- return 1;
+
+ /* Zero means success. */
+ return 0;
}
static file_ptr
{
ULONGEST addr = *(ULONGEST *)stream;
- if (fetch_ppc_memory (addr + offset, buf, nbytes) != 0)
+ if (fetch_ppc_memory (addr + offset, (gdb_byte *)buf, nbytes) != 0)
{
bfd_set_error (bfd_error_invalid_operation);
return -1;
table to find the extent of the last section but that seems
pointless when the size is needed only for checks of other
parsed values in dbxread.c. */
+ memset (sb, 0, sizeof (struct stat));
sb->st_size = INT_MAX;
return 0;
}
spu_bfd_open (ULONGEST addr)
{
struct bfd *nbfd;
+ asection *spu_name;
- ULONGEST *open_closure = xmalloc (sizeof (ULONGEST));
+ ULONGEST *open_closure = XNEW (ULONGEST);
*open_closure = addr;
- nbfd = bfd_openr_iovec (xstrdup ("<in-memory>"), "elf32-spu",
- spu_bfd_iovec_open, open_closure,
- spu_bfd_iovec_pread, spu_bfd_iovec_close,
- spu_bfd_iovec_stat);
+ nbfd = gdb_bfd_openr_iovec ("<in-memory>", "elf32-spu",
+ spu_bfd_iovec_open, open_closure,
+ spu_bfd_iovec_pread, spu_bfd_iovec_close,
+ spu_bfd_iovec_stat);
if (!nbfd)
return NULL;
if (!bfd_check_format (nbfd, bfd_object))
{
- bfd_close (nbfd);
+ gdb_bfd_unref (nbfd);
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 = (char *)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;
}
ULONGEST addr;
struct bfd *nbfd;
- char id[128];
+ gdb_byte id[128];
char annex[32];
- int len;
+ ULONGEST len;
+ enum target_xfer_status status;
/* Read object ID. */
xsnprintf (annex, sizeof annex, "%d/object-id", inferior_fd);
- len = spu_proc_xfer_spu (annex, id, NULL, 0, sizeof id);
- if (len <= 0 || len >= sizeof id)
+ status = spu_proc_xfer_spu (annex, id, NULL, 0, sizeof id, &len);
+ if (status != TARGET_XFER_OK || len >= sizeof id)
return;
id[len] = 0;
- addr = strtoulst (id, NULL, 16);
+ addr = strtoulst ((const char *) 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);
+ {
+ struct cleanup *cleanup = make_cleanup_bfd_unref (nbfd);
+
+ symbol_file_add_from_bfd (nbfd, bfd_get_filename (nbfd),
+ SYMFILE_VERBOSE | SYMFILE_MAINLINE,
+ NULL, 0, NULL);
+ do_cleanups (cleanup);
+ }
}
/* Override the post_startup_inferior routine to continue running
the inferior until the first spu_run system call. */
static void
-spu_child_post_startup_inferior (ptid_t ptid)
+spu_child_post_startup_inferior (struct target_ops *self, ptid_t ptid)
{
int fd;
ULONGEST addr;
- int tid = TIDGET (ptid);
+ int tid = ptid_get_lwp (ptid);
if (tid == 0)
- tid = PIDGET (ptid);
+ tid = ptid_get_pid (ptid);
while (!parse_spufs_run (&fd, &addr))
{
/* Override the post_attach routine to try load the SPE executable
file image from its copy inside the target process. */
static void
-spu_child_post_attach (int pid)
+spu_child_post_attach (struct target_ops *self, int pid)
{
int fd;
ULONGEST addr;
/* 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);
+ pid = waitpid (ptid_get_pid (ptid), &status, 0);
if (pid == -1 && errno == ECHILD)
/* Try again with __WCLONE to check cloned processes. */
- pid = waitpid (PIDGET (ptid), &status, __WCLONE);
+ pid = waitpid (ptid_get_pid (ptid), &status, __WCLONE);
save_errno = errno;
/* Make sure we don't report an event for the exit of the
original program, if we've detached from it. */
- if (pid != -1 && !WIFSTOPPED (status) && pid != PIDGET (inferior_ptid))
+ if (pid != -1 && !WIFSTOPPED (status)
+ && pid != ptid_get_pid (inferior_ptid))
{
pid = -1;
save_errno = EINTR;
}
- clear_sigio_trap ();
clear_sigint_trap ();
}
while (pid == -1 && save_errno == EINTR);
/* Claim it exited with unknown signal. */
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
- ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
- return minus_one_ptid;
+ ourstatus->value.sig = GDB_SIGNAL_UNKNOWN;
+ return inferior_ptid;
}
store_waitstatus (ourstatus, status);
/* Override the fetch_inferior_register routine. */
static void
-spu_fetch_inferior_registers (struct regcache *regcache, int regno)
+spu_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
int fd;
ULONGEST addr;
/* The ID register holds the spufs file handle. */
if (regno == -1 || regno == SPU_ID_REGNUM)
{
- char buf[4];
- store_unsigned_integer (buf, 4, fd);
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ gdb_byte buf[4];
+ store_unsigned_integer (buf, 4, byte_order, fd);
regcache_raw_supply (regcache, SPU_ID_REGNUM, buf);
}
gdb_byte buf[16 * SPU_NUM_GPRS];
char annex[32];
int i;
+ ULONGEST len;
xsnprintf (annex, sizeof annex, "%d/regs", fd);
- if (spu_proc_xfer_spu (annex, buf, NULL, 0, sizeof buf) == sizeof buf)
+ if ((spu_proc_xfer_spu (annex, buf, NULL, 0, sizeof buf, &len)
+ == TARGET_XFER_OK)
+ && len == sizeof buf)
for (i = 0; i < SPU_NUM_GPRS; i++)
regcache_raw_supply (regcache, i, buf + i*16);
}
/* Override the store_inferior_register routine. */
static void
-spu_store_inferior_registers (struct regcache *regcache, int regno)
+spu_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
int fd;
ULONGEST addr;
gdb_byte buf[16 * SPU_NUM_GPRS];
char annex[32];
int i;
+ ULONGEST len;
for (i = 0; i < SPU_NUM_GPRS; i++)
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);
+ spu_proc_xfer_spu (annex, NULL, buf, 0, sizeof buf, &len);
}
}
/* Override the to_xfer_partial routine. */
-static LONGEST
+static enum target_xfer_status
spu_xfer_partial (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
- ULONGEST offset, LONGEST len)
+ ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
{
if (object == TARGET_OBJECT_SPU)
- return spu_proc_xfer_spu (annex, readbuf, writebuf, offset, len);
+ return spu_proc_xfer_spu (annex, readbuf, writebuf, offset, len,
+ xfered_len);
if (object == TARGET_OBJECT_MEMORY)
{
int fd;
ULONGEST addr;
- char mem_annex[32];
+ char mem_annex[32], lslr_annex[32];
+ gdb_byte buf[32];
+ ULONGEST lslr;
+ enum target_xfer_status ret;
/* We must be stopped on a spu_run system call. */
if (!parse_spufs_run (&fd, &addr))
- return 0;
+ return TARGET_XFER_EOF;
/* 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,
+ xfered_len);
+ if (ret == TARGET_XFER_OK)
+ 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, xfered_len)
+ != TARGET_XFER_OK)
+ return ret;
+
+ lslr = strtoulst ((const char *) buf, NULL, 16);
+ return spu_proc_xfer_spu (mem_annex, readbuf, writebuf,
+ offset & lslr, len, xfered_len);
}
- return -1;
+ return TARGET_XFER_E_IO;
}
/* Override the to_can_use_hw_breakpoint routine. */
static int
-spu_can_use_hw_breakpoint (int type, int cnt, int othertype)
+spu_can_use_hw_breakpoint (struct target_ops *self,
+ enum bptype type, int cnt, int othertype)
{
return 0;
}
+/* -Wmissing-prototypes */
+extern initialize_file_ftype _initialize_spu_nat;
/* Initialize SPU native target. */
void
/* Register SPU target. */
add_target (t);
}
-
projects / deliverable / binutils-gdb.git / blobdiff