diff options
Diffstat (limited to 'gdb/inf-ptrace.c')
| -rw-r--r-- | gdb/inf-ptrace.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c index dc3746b..edcad5a 100644 --- a/gdb/inf-ptrace.c +++ b/gdb/inf-ptrace.c @@ -459,11 +459,11 @@ inf_ptrace_wait (struct target_ops *ops, inferior's OBJECT:ANNEX space and GDB's READBUF/WRITEBUF buffer. Return the number of bytes actually transferred. */ -static LONGEST +static enum target_xfer_status inf_ptrace_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) { pid_t pid = ptid_get_pid (inferior_ptid); @@ -490,13 +490,16 @@ inf_ptrace_xfer_partial (struct target_ops *ops, enum target_object object, errno = 0; if (ptrace (PT_IO, pid, (caddr_t)&piod, 0) == 0) - /* Return the actual number of bytes read or written. */ - return piod.piod_len; + { + *xfered_len = piod.piod_len; + /* Return the actual number of bytes read or written. */ + return TARGET_XFER_OK; + } /* If the PT_IO request is somehow not supported, fallback on using PT_WRITE_D/PT_READ_D. Otherwise we will return zero to indicate failure. */ if (errno != EINVAL) - return 0; + return TARGET_XFER_EOF; } #endif { @@ -506,7 +509,7 @@ inf_ptrace_xfer_partial (struct target_ops *ops, enum target_object object, gdb_byte byte[sizeof (PTRACE_TYPE_RET)]; } buffer; ULONGEST rounded_offset; - LONGEST partial_len; + ULONGEST partial_len; /* Round the start offset down to the next long word boundary. */ @@ -552,7 +555,7 @@ inf_ptrace_xfer_partial (struct target_ops *ops, enum target_object object, (PTRACE_TYPE_ARG3)(uintptr_t)rounded_offset, buffer.word); if (errno) - return 0; + return TARGET_XFER_EOF; } } @@ -563,13 +566,14 @@ inf_ptrace_xfer_partial (struct target_ops *ops, enum target_object object, (PTRACE_TYPE_ARG3)(uintptr_t)rounded_offset, 0); if (errno) - return 0; + return TARGET_XFER_EOF; /* Copy appropriate bytes out of the buffer. */ memcpy (readbuf, buffer.byte + (offset - rounded_offset), partial_len); } - return partial_len; + *xfered_len = partial_len; + return TARGET_XFER_OK; } case TARGET_OBJECT_UNWIND_TABLE: @@ -592,8 +596,11 @@ inf_ptrace_xfer_partial (struct target_ops *ops, enum target_object object, errno = 0; if (ptrace (PT_IO, pid, (caddr_t)&piod, 0) == 0) - /* Return the actual number of bytes read or written. */ - return piod.piod_len; + { + *xfered_len = piod.piod_len; + /* Return the actual number of bytes read or written. */ + return TARGET_XFER_OK; + } } #endif return TARGET_XFER_E_IO; |