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authorHans-Peter Nilsson <hp@axis.com>2005-11-17 16:14:53 +0000
committerHans-Peter Nilsson <hp@axis.com>2005-11-17 16:14:53 +0000
commited1f044ac6423184b2e2b8f805ddc4f76ea1256c (patch)
tree89918a464f6ebd0e6ca81ec2b38cf9387f053fa5 /sim/cris/sim-main.h
parent5457266c93b2d713d95a4879446015aac02b270c (diff)
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* cris/sim-main.h (struct _sim_cpu): New members last_syscall,
last_open_fd, last_open_flags. * cris/traps.c: Don't include targ-vals.h. (TARGET_O_ACCMODE): Define. (cris_break_13_handler): Set new _sim_cpu members. <case TARGET_SYS_fcntl>: Support special case of F_GETFL. Rearrange code as switch. Emit "unimplemented" abort for unimplemented fcntl calls.
Diffstat (limited to 'sim/cris/sim-main.h')
-rw-r--r--sim/cris/sim-main.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/sim/cris/sim-main.h b/sim/cris/sim-main.h
index b671533..b35b927 100644
--- a/sim/cris/sim-main.h
+++ b/sim/cris/sim-main.h
@@ -166,6 +166,17 @@ struct _sim_cpu {
for sigmasks and sigpendings. */
USI sighandler[64];
+ /* This is a hack to implement just the parts of fcntl F_GETFL that
+ are used in open+fdopen calls for the standard scenario: for such
+ a call we check that the last syscall was open, we check that the
+ passed fd is the same returned then, and so we return the same
+ flags passed to open. This way, we avoid complicating the
+ generic sim callback machinery by introducing fcntl
+ mechanisms. */
+ USI last_syscall;
+ USI last_open_fd;
+ USI last_open_flags;
+
/* Function for initializing CPU thread context, which varies in size
with each CPU model. They should be in some constant parts or
initialized in *_init_cpu, but we can't modify that for now. */