#include "gdb_dirent.h"
#include "xml-support.h"
#include "terminal.h"
+#include <sys/vfs.h>
+
+#ifndef SPUFS_MAGIC
+#define SPUFS_MAGIC 0x23c9b64e
+#endif
#ifdef HAVE_PERSONALITY
# include <sys/personality.h>
return 0;
}
+/* Enumerate spufs IDs for process PID. */
+
+static void
+iterate_over_spus (int pid, void (*callback) (void *, int), void *data)
+{
+ char path[128];
+ DIR *dir;
+ struct dirent *entry;
+
+ xsnprintf (path, sizeof path, "/proc/%d/fd", pid);
+ dir = opendir (path);
+ if (!dir)
+ return;
+
+ rewinddir (dir);
+ while ((entry = readdir (dir)) != NULL)
+ {
+ struct stat st;
+ struct statfs stfs;
+ int fd;
+
+ fd = atoi (entry->d_name);
+ if (!fd)
+ continue;
+
+ xsnprintf (path, sizeof path, "/proc/%d/fd/%d", pid, fd);
+ if (stat (path, &st) != 0)
+ continue;
+ if (!S_ISDIR (st.st_mode))
+ continue;
+
+ if (statfs (path, &stfs) != 0)
+ continue;
+ if (stfs.f_type != SPUFS_MAGIC)
+ continue;
+
+ callback (data, fd);
+ }
+
+ closedir (dir);
+}
+
+/* Generate corefile notes for SPU contexts. */
+
+struct linux_spu_corefile_data
+{
+ bfd *obfd;
+ char *note_data;
+ int *note_size;
+};
+
+static void
+linux_spu_corefile_callback (void *data, int fd)
+{
+ struct linux_spu_corefile_data *args = data;
+ int i;
+
+ static const char *spu_files[] =
+ {
+ "object-id",
+ "mem",
+ "regs",
+ "fpcr",
+ "lslr",
+ "decr",
+ "decr_status",
+ "signal1",
+ "signal1_type",
+ "signal2",
+ "signal2_type",
+ "event_mask",
+ "event_status",
+ "mbox_info",
+ "ibox_info",
+ "wbox_info",
+ "dma_info",
+ "proxydma_info",
+ };
+
+ for (i = 0; i < sizeof (spu_files) / sizeof (spu_files[0]); i++)
+ {
+ char annex[32], note_name[32];
+ gdb_byte *spu_data;
+ LONGEST spu_len;
+
+ xsnprintf (annex, sizeof annex, "%d/%s", fd, spu_files[i]);
+ spu_len = target_read_alloc (¤t_target, TARGET_OBJECT_SPU,
+ annex, &spu_data);
+ if (spu_len > 0)
+ {
+ xsnprintf (note_name, sizeof note_name, "SPU/%s", annex);
+ args->note_data = elfcore_write_note (args->obfd, args->note_data,
+ args->note_size, note_name,
+ NT_SPU, spu_data, spu_len);
+ xfree (spu_data);
+ }
+ }
+}
+
+static char *
+linux_spu_make_corefile_notes (bfd *obfd, char *note_data, int *note_size)
+{
+ struct linux_spu_corefile_data args;
+ args.obfd = obfd;
+ args.note_data = note_data;
+ args.note_size = note_size;
+
+ iterate_over_spus (PIDGET (inferior_ptid),
+ linux_spu_corefile_callback, &args);
+
+ return args.note_data;
+}
+
/* Fills the "to_make_corefile_note" target vector. Builds the note
section for a corefile, and returns it in a malloc buffer. */
xfree (auxv);
}
+ note_data = linux_spu_make_corefile_notes (obfd, note_data, note_size);
+
make_cleanup (xfree, note_data);
return note_data;
}
return ret;
}
+
+/* Enumerate spufs IDs for process PID. */
+static LONGEST
+spu_enumerate_spu_ids (int pid, gdb_byte *buf, ULONGEST offset, LONGEST len)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
+ LONGEST pos = 0;
+ LONGEST written = 0;
+ char path[128];
+ DIR *dir;
+ struct dirent *entry;
+
+ xsnprintf (path, sizeof path, "/proc/%d/fd", pid);
+ dir = opendir (path);
+ if (!dir)
+ return -1;
+
+ rewinddir (dir);
+ while ((entry = readdir (dir)) != NULL)
+ {
+ struct stat st;
+ struct statfs stfs;
+ int fd;
+
+ fd = atoi (entry->d_name);
+ if (!fd)
+ continue;
+
+ xsnprintf (path, sizeof path, "/proc/%d/fd/%d", pid, fd);
+ if (stat (path, &st) != 0)
+ continue;
+ if (!S_ISDIR (st.st_mode))
+ continue;
+
+ if (statfs (path, &stfs) != 0)
+ continue;
+ if (stfs.f_type != SPUFS_MAGIC)
+ continue;
+
+ if (pos >= offset && pos + 4 <= offset + len)
+ {
+ store_unsigned_integer (buf + pos - offset, 4, byte_order, fd);
+ written += 4;
+ }
+ pos += 4;
+ }
+
+ closedir (dir);
+ return written;
+}
+
+/* Implement the to_xfer_partial interface for the TARGET_OBJECT_SPU
+ object type, using the /proc file system. */
+static LONGEST
+linux_proc_xfer_spu (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, LONGEST len)
+{
+ char buf[128];
+ int fd = 0;
+ int ret = -1;
+ int pid = PIDGET (inferior_ptid);
+
+ if (!annex)
+ {
+ if (!readbuf)
+ return -1;
+ else
+ return spu_enumerate_spu_ids (pid, readbuf, offset, len);
+ }
+
+ xsnprintf (buf, sizeof buf, "/proc/%d/fd/%s", pid, annex);
+ fd = open (buf, writebuf? O_WRONLY : O_RDONLY);
+ if (fd <= 0)
+ return -1;
+
+ if (offset != 0
+ && lseek (fd, (off_t) offset, SEEK_SET) != (off_t) offset)
+ {
+ close (fd);
+ return 0;
+ }
+
+ if (writebuf)
+ ret = write (fd, writebuf, (size_t) len);
+ else if (readbuf)
+ ret = read (fd, readbuf, (size_t) len);
+
+ close (fd);
+ return ret;
+}
+
+
/* Parse LINE as a signal set and add its set bits to SIGS. */
static void
return linux_nat_xfer_osdata (ops, object, annex, readbuf, writebuf,
offset, len);
+ if (object == TARGET_OBJECT_SPU)
+ return linux_proc_xfer_spu (ops, object, annex, readbuf, writebuf,
+ offset, len);
+
/* GDB calculates all the addresses in possibly larget width of the address.
Address width needs to be masked before its final use - either by
linux_proc_xfer_partial or inf_ptrace_xfer_partial.
projects / deliverable / binutils-gdb.git / blobdiff