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authorRich Felker <dalias@aerifal.cx>2014-09-06 20:44:30 -0400
committerRich Felker <dalias@aerifal.cx>2014-09-06 20:44:30 -0400
commitb7cf71a190813590860af25b32532b6c360ac502 (patch)
tree007997502a904975b2f78c3988c8c648c1cb50c5 /arch/sh/bits
parentdf7d0dfb9c686df31149d09008ba92834bed9803 (diff)
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add threads.h and needed per-arch types for mtx_t and cnd_t
based on patch by Jens Gustedt.

mtx_t and cnd_t are defined in such a way that they are formally
"compatible types" with pthread_mutex_t and pthread_cond_t,
respectively, when accessed from a different translation unit. this
makes it possible to implement the C11 functions using the pthread
functions (which will dereference them with the pthread types) without
having to use the same types, which would necessitate either namespace
violations (exposing pthread type names in threads.h) or incompatible
changes to the C++ name mangling ABI for the pthread types.

for the rest of the types, things are much simpler; using identical
types is possible without any namespace considerations.
Diffstat (limited to 'arch/sh/bits')
-rw-r--r--arch/sh/bits/alltypes.h.in2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sh/bits/alltypes.h.in b/arch/sh/bits/alltypes.h.in
index ee7f1373..7446ab47 100644
--- a/arch/sh/bits/alltypes.h.in
+++ b/arch/sh/bits/alltypes.h.in
@@ -20,6 +20,8 @@ TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
 TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } mtx_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
+TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } cnd_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;