diff options
Diffstat (limited to 'gdb/spu-linux-nat.c')
| -rw-r--r-- | gdb/spu-linux-nat.c | 54 |
1 files changed, 35 insertions, 19 deletions
diff --git a/gdb/spu-linux-nat.c b/gdb/spu-linux-nat.c index a095dfb..a3fd369 100644 --- a/gdb/spu-linux-nat.c +++ b/gdb/spu-linux-nat.c @@ -228,10 +228,10 @@ parse_spufs_run (int *fd, ULONGEST *addr) /* 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, ULONGEST len) + ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) { char buf[128]; int fd = 0; @@ -239,7 +239,7 @@ spu_proc_xfer_spu (const char *annex, gdb_byte *readbuf, 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); @@ -250,7 +250,7 @@ spu_proc_xfer_spu (const char *annex, gdb_byte *readbuf, && lseek (fd, (off_t) offset, SEEK_SET) != (off_t) offset) { close (fd); - return 0; + return TARGET_XFER_EOF; } if (writebuf) @@ -259,7 +259,15 @@ spu_proc_xfer_spu (const char *annex, gdb_byte *readbuf, 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; + } } @@ -361,12 +369,13 @@ spu_symbol_file_add_from_memory (int inferior_fd) 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 ((const char *) id, NULL, 16); @@ -515,9 +524,12 @@ spu_fetch_inferior_registers (struct target_ops *ops, 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); } @@ -549,24 +561,26 @@ spu_store_inferior_registers (struct target_ops *ops, 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, ULONGEST 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) { @@ -575,16 +589,17 @@ spu_xfer_partial (struct target_ops *ops, char mem_annex[32], lslr_annex[32]; gdb_byte buf[32]; ULONGEST lslr; - LONGEST ret; + 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); - ret = spu_proc_xfer_spu (mem_annex, readbuf, writebuf, offset, len); - if (ret > 0) + 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 @@ -593,12 +608,13 @@ spu_xfer_partial (struct target_ops *ops, 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) + 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); + offset & lslr, len, xfered_len); } return TARGET_XFER_E_IO; |