Hi All,
I'm trying to make tcc compile ROOTB on Cygwin and I already have tcc.exe
running with very few patches (see below).The problem I'm facing is a parse
error with __cdecl declarations from cygwin includes.
Even on a standard Linux machine running mod tcc, the following code:void
__cdecl foo(void)
{
}
fails with
jullien@sims ~/tinycc $ ./tcc -c foo.c
foo.c:1: error: ';' expected (got "foo")
Am I missing something?
Here is my first diff to support Cygwin, at least on x64.
diff --git a/libtcc.c b/libtcc.c
index df98bb0..4568aa3 100644
--- a/libtcc.c
+++ b/libtcc.c
@@ -1129,6 +1129,9 @@ LIBTCCAPI TCCState *tcc_new(void)
tcc_define_symbol(s, "__linux__", NULL);
tcc_define_symbol(s, "__linux", NULL);
# endif
+# if defined(__CYGWIN__)
+ tcc_define_symbol(s, "__CYGWIN__", NULL);
+# endif
# if defined(__FreeBSD__)
# define str(s) #s
tcc_define_symbol(s, "__FreeBSD__", str( __FreeBSD__));
diff --git a/tccrun.c b/tccrun.c
index 55db310..0b7ebd1 100644
--- a/tccrun.c
+++ b/tccrun.c
@@ -540,6 +540,8 @@ static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc,
int level)
*paddr =
uc->uc_mcontext.mc_rip;
#elif defined(__NetBSD__)
*paddr =
uc->uc_mcontext.__gregs[_REG_RIP];
+#elif defined(__CYGWIN__)
+ *paddr = uc->uc_mcontext.rip;
#else
*paddr =
uc->uc_mcontext.gregs[REG_RIP];
#endif
@@ -551,6 +553,8 @@ static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc,
int level)
fp = uc->uc_mcontext.mc_rbp;
#elif defined(__NetBSD__)
fp =
uc->uc_mcontext.__gregs[_REG_RBP];
+#elif defined(__CYGWIN__)
+ fp = uc->uc_mcontext.rbp;
#else
fp =
uc->uc_mcontext.gregs[REG_RBP];
#endif
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