diff options
Diffstat (limited to 'gdb/spu-linux-nat.c')
| -rw-r--r-- | gdb/spu-linux-nat.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/gdb/spu-linux-nat.c b/gdb/spu-linux-nat.c index 7c9e2c5..5adfe4b 100644 --- a/gdb/spu-linux-nat.c +++ b/gdb/spu-linux-nat.c @@ -562,7 +562,10 @@ spu_xfer_partial (struct target_ops *ops, { int fd; ULONGEST addr; - char mem_annex[32]; + 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)) @@ -570,7 +573,22 @@ spu_xfer_partial (struct target_ops *ops, /* 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 -1; |