Compiling a gnulib testdir with tcc 0.9.27, nearly all tests pass. The only
failures are:
FAIL: test-asyncsafe-spin2
FAIL: test-simple-atomic
This patch fixes them.
2021-03-03 Bruno Haible <br...@clisp.org>
asyncsafe-spin, simple-atomic: Add support for tcc.
* lib/asyncsafe-spin.c (memory_barrier, atomic_compare_and_swap): On
i386 and x86_64, treat tcc like older GCC or clang.
* lib/simple-atomic.c (memory_barrier, atomic_compare_and_swap,
atomic_compare_and_swap_ptr): Likewise.
diff --git a/lib/asyncsafe-spin.c b/lib/asyncsafe-spin.c
index ba22b9c..cece623 100644
--- a/lib/asyncsafe-spin.c
+++ b/lib/asyncsafe-spin.c
@@ -190,7 +190,7 @@ do_unlock (asyncsafe_spinlock_t *lock)
abort ();
}
-# elif (defined __GNUC__ || defined __clang__ || defined __SUNPRO_C) &&
(defined __sparc || defined __i386 || defined __x86_64__)
+# elif ((defined __GNUC__ || defined __clang__ || defined __SUNPRO_C) &&
(defined __sparc || defined __i386 || defined __x86_64__)) || (defined
__TINYC__ && (defined __i386 || defined __x86_64__))
/* For older versions of GCC or clang, use inline assembly.
GCC, clang, and the Oracle Studio C 12 compiler understand GCC's extended
asm syntax, but the plain Oracle Studio C 11 compiler understands only
@@ -200,7 +200,7 @@ do_unlock (asyncsafe_spinlock_t *lock)
static void
memory_barrier (void)
{
-# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590
+# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590 || defined
__TINYC__
# if defined __i386 || defined __x86_64__
asm volatile ("mfence");
# endif
@@ -223,7 +223,7 @@ static unsigned int
atomic_compare_and_swap (volatile unsigned int *vp, unsigned int cmp,
unsigned int newval)
{
-# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590
+# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590 || defined
__TINYC__
unsigned int oldval;
# if defined __i386 || defined __x86_64__
asm volatile (" lock\n cmpxchgl %3,(%1)"
diff --git a/lib/simple-atomic.c b/lib/simple-atomic.c
index 17625fb..4d5a0d8 100644
--- a/lib/simple-atomic.c
+++ b/lib/simple-atomic.c
@@ -186,7 +186,7 @@ atomic_compare_and_swap_ptr (uintptr_t volatile *vp,
return oldval;
}
-# elif (defined __GNUC__ || defined __clang__ || defined __SUNPRO_C) &&
(defined __sparc || defined __i386 || defined __x86_64__)
+# elif ((defined __GNUC__ || defined __clang__ || defined __SUNPRO_C) &&
(defined __sparc || defined __i386 || defined __x86_64__)) || (defined
__TINYC__ && (defined __i386 || defined __x86_64__))
/* For older versions of GCC or clang, use inline assembly.
GCC, clang, and the Oracle Studio C 12 compiler understand GCC's extended
asm syntax, but the plain Oracle Studio C 11 compiler understands only
@@ -195,7 +195,7 @@ atomic_compare_and_swap_ptr (uintptr_t volatile *vp,
void
memory_barrier (void)
{
-# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590
+# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590 || defined
__TINYC__
# if defined __i386 || defined __x86_64__
asm volatile ("mfence");
# endif
@@ -217,7 +217,7 @@ atomic_compare_and_swap (unsigned int volatile *vp,
unsigned int cmp,
unsigned int newval)
{
-# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590
+# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590 || defined
__TINYC__
unsigned int oldval;
# if defined __i386 || defined __x86_64__
asm volatile (" lock\n cmpxchgl %3,(%1)"
@@ -251,7 +251,7 @@ atomic_compare_and_swap_ptr (uintptr_t volatile *vp,
uintptr_t cmp,
uintptr_t newval)
{
-# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590
+# if defined __GNUC__ || defined __clang__ || __SUNPRO_C >= 0x590 || defined
__TINYC__
uintptr_t oldval;
# if defined __x86_64__
asm volatile (" lock\n cmpxchgq %3,(%1)"
