First commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 75 insertions, 0 deletions

diff --git a/common.h b/common.h
new file mode 100644
index 0000000..f2ac824
--- /dev/null
+++ b/common.h
@@ -0,0 +1,75 @@
+/* See LICENSE file for copyright and license details. */
+#ifdef REQUIRE_FLEXABLE_OR_NPARAMS
+# if defined(__clang__) || defined(__GNUC__)
+#  define LIBSYSCALLS_FLEXABLE_OR_NPARAMS_
+# else
+#  define LIBSYSCALLS_FLEXABLE_OR_NPARAMS_ NPARAMS
+#  warning Setting LIBSYSCALLS_FLEXABLE_OR_NPARAMS_ to NPARAMS as it is not known that the compiler supports static allocation of structs with flexible arrays
+# endif
+#endif
+#include "libsyscalls.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define COMMA ,
+
+
+#define MISALIGNMENT(ADDR, ALIGN) (((ADDR) - ((ADDR) % (uintptr_t)(ALIGN))) % (uintptr_t)(ALIGN))
+#define ALIGN_BUF(BUF, ALIGN) (&(BUF)[(size_t)MISALIGNMENT((uintptr_t)(char *)(BUF), (ALIGN))])
+
+
+struct libsyscalls_symbol_printer_data {
+	enum libsyscalls_arch arch;
+	int nr;
+	char buf[];
+};
+
+
+#include "generated/oses.h"
+#include "generated/arches.h"
+#include "generated/lowercase.h"
+#include "generated/macros.h"
+
+
+#if defined(__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
+#endif
+extern const struct libsyscalls_syscall *const *const *const libsyscalls_syscalls_tables_[];
+#define X(UPPERCASE, LOWERCASE)\
+	extern const struct libsyscalls_syscall *const *const libsyscalls_##LOWERCASE##_syscalls_table_[];
+LIST_OSES(X,)
+#undef X
+#if defined(__clang__)
+# pragma clang diagnostic pop
+#endif
+
+
+#define COUNT_ARG_PAIRS(...) (0 __VA_OPT__(+ COUNT_ARG_PAIRS_1(__VA_ARGS__)))
+
+/* mk/generate.mk reads these two lines, do not format them as multiline macros! */
+#define COUNT_ARG_PAIRS_1(x1, x2, ...) 1 __VA_OPT__(+ COUNT_ARG_PAIRS_2(__VA_ARGS__))
+#define PARAMS_BUILD_TYPES_1(x, A, ...) LIBSYSCALLS_TYPE_##A __VA_OPT__(, PARAMS_BUILD_TYPES_2(__VA_ARGS__))
+
+#define PARAMS(...)\
+	.max_argument_count = COUNT_ARG_PAIRS(__VA_ARGS__),\
+	.in_pointer_mask = PARAMS_BUILD_MASK(IN, __VA_ARGS__),\
+	.out_pointer_mask = PARAMS_BUILD_MASK(OUT, __VA_ARGS__), \
+	.symbolic_mask = PARAMS_BUILD_MASK(SYM, __VA_ARGS__)\
+	__VA_OPT__(, .parameters_types = {PARAMS_BUILD_TYPES_1(__VA_ARGS__)})
+
+#define ZERO(TYPE) TYPE, .expect_zero = 1
+#define LIBSYSCALLS_TYPE_ZERO(TYPE) ZERO(LIBSYSCALLS_TYPE_##TYPE)
+
+#define SYMB(TYPE) TYPE, .symbolic_return = 1
+#define LIBSYSCALLS_TYPE_SYMB(TYPE) SYMB(LIBSYSCALLS_TYPE_##TYPE)
+
+#define SYSCALL_ABI(OS, NAME, CATEGORY, SUBCATEGORY, MIN_ARGS, RETURN_TYPE, ...)\
+	static struct libsyscalls_syscall_abi OS##_syscall_##NAME = {\
+		.category = LIBSYSCALLS_CAT_##CATEGORY,\
+		.subcategory.LOWERCASE_##CATEGORY = LIBSYSCALLS_##CATEGORY##_SUBCAT_##SUBCATEGORY,\
+		.min_argument_count = MIN_ARGS,\
+		.return_type = LIBSYSCALLS_TYPE_##RETURN_TYPE,\
+		__VA_ARGS__\
+	}