diff options
| -rw-r--r-- | include/gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | include/gdb/callback.h | 33 |
2 files changed, 38 insertions, 0 deletions
diff --git a/include/gdb/ChangeLog b/include/gdb/ChangeLog index d07d00d..42e1bfa 100644 --- a/include/gdb/ChangeLog +++ b/include/gdb/ChangeLog @@ -1,5 +1,10 @@ 2005-01-28 Hans-Peter Nilsson <hp@axis.com> + * callback.h (struct host_callback_struct): New members pipe, + pipe_empty, pipe_nonempty, ispipe, pipe_buffer and + target_sizeof_int. + (CB_SYS_pipe): New macro. + * callback.h: Include "bfd.h". (struct host_callback_struct): New member target_endian. (cb_store_target_endian): Declare. diff --git a/include/gdb/callback.h b/include/gdb/callback.h index 08b1b6b..6c75a19 100644 --- a/include/gdb/callback.h +++ b/include/gdb/callback.h @@ -98,6 +98,14 @@ struct host_callback_struct int (*lstat) PARAMS ((host_callback *, const char *, struct stat *)); int (*ftruncate) PARAMS ((host_callback *, int, long)); int (*truncate) PARAMS ((host_callback *, const char *, long)); + int (*pipe) PARAMS ((host_callback *, int *)); + + /* Called by the framework when a read call has emptied a pipe buffer. */ + void (*pipe_empty) PARAMS ((host_callback *, int read_fd, int write_fd)); + + /* Called by the framework when a write call makes a pipe buffer + non-empty. */ + void (*pipe_nonempty) PARAMS ((host_callback *, int read_fd, int write_fd)); /* When present, call to the client to give it the oportunity to poll any io devices for a request to quit (indicated by a nonzero @@ -136,6 +144,22 @@ struct host_callback_struct implement now. */ short fd_buddy[MAX_CALLBACK_FDS+1]; + /* 0 = none, >0 = reader (index of writer), + <0 = writer (negative index of reader). + If abs (ispipe[N]) == N, then N is an end of a pipe whose other + end is closed. */ + short ispipe[MAX_CALLBACK_FDS]; + + /* A writer stores the buffer at its index. Consecutive writes + realloc the buffer and add to the size. The reader indicates the + read part in its .size, until it has consumed it all, at which + point it deallocates the buffer and zeroes out both sizes. */ + struct pipe_write_buffer + { + int size; + char *buffer; + } pipe_buffer[MAX_CALLBACK_FDS]; + /* System call numbers. */ CB_TARGET_DEFS_MAP *syscall_map; /* Errno values. */ @@ -155,6 +179,14 @@ struct host_callback_struct enum bfd_endian target_endian; + /* Size of an "int" on the target (for syscalls whose ABI uses "int"). + This must include padding, and only padding-at-higher-address is + supported. For example, a 64-bit target with 32-bit int:s which + are padded to 64 bits when in an array, should supposedly set this + to 8. The default is 4 which matches ILP32 targets and 64-bit + targets with 32-bit ints and no padding. */ + int target_sizeof_int; + /* Marker for those wanting to do sanity checks. This should remain the last member of this struct to help catch miscompilation errors. */ @@ -199,6 +231,7 @@ extern host_callback default_callback; #define CB_SYS_rename 20 #define CB_SYS_truncate 21 #define CB_SYS_ftruncate 22 +#define CB_SYS_pipe 23 /* Struct use to pass and return information necessary to perform a system call. */ |