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* callback.h (struct host_callback_struct): New members pipe,

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pipe_empty, pipe_nonempty, ispipe, pipe_buffer and
	target_sizeof_int.
	(CB_SYS_pipe): New macro.
This commit is contained in:
Hans-Peter Nilsson 2005-01-28 03:39:28 +00:00
parent 9e34a4010f
commit 48d5b28742
2 changed files with 38 additions and 0 deletions
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5
include/gdb/ChangeLog
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@ -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.

33
include/gdb/callback.h
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@ -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. */