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[gamecode] Specify the alignment for progs types

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And provide a table for such for qfcc and the like. With this, using
pr_double_t (for example) in C will cause the double value to always be
8-byte aligned and thus structures shared between gcc and qfcc will be
consistent (with a little fuss to take care of the warts).
This commit is contained in:
Bill Currie 2022-01-18 18:41:39 +09:00
parent 25f8d3a23d
commit ed501b7734
2 changed files with 22 additions and 15 deletions
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31
include/QF/progs/pr_comp.h
View file

@ -23,21 +23,21 @@
#include "QF/qtypes.h"
typedef int32_t pr_string_t;
typedef float pr_float_t;
typedef float pr_vector_t[3];
typedef uint32_t pr_entity_t;
typedef uint32_t pr_field_t;
typedef uint32_t pr_func_t;
typedef uint32_t pr_ptr_t;
typedef float pr_quaternion_t[4];
typedef int32_t pr_int_t;
typedef uint32_t pr_uint_t;
typedef int16_t pr_short_t;
typedef double pr_double_t;
typedef int64_t pr_long_t;
typedef uint64_t pr_ulong_t;
typedef uint16_t pr_ushort_t;
typedef int32_t pr_string_t __attribute__((aligned(4)));
typedef float pr_float_t __attribute__((aligned(4)));
typedef float pr_vector_t[3] __attribute__((aligned(4)));
typedef uint32_t pr_entity_t __attribute__((aligned(4)));
typedef uint32_t pr_field_t __attribute__((aligned(4)));
typedef uint32_t pr_func_t __attribute__((aligned(4)));
typedef uint32_t pr_ptr_t __attribute__((aligned(4)));
typedef float pr_quaternion_t[4] __attribute__((aligned(4)));
typedef int32_t pr_int_t __attribute__((aligned(4)));
typedef uint32_t pr_uint_t __attribute__((aligned(4)));
typedef int16_t pr_short_t __attribute__((aligned(2)));
typedef double pr_double_t __attribute__((aligned(8)));
typedef int64_t pr_long_t __attribute__((aligned(8)));
typedef uint64_t pr_ulong_t __attribute__((aligned(8)));
typedef uint16_t pr_ushort_t __attribute__((aligned(2)));;
#define PR_VEC_TYPE(t,n,s) \
typedef t n __attribute__ ((vector_size (s*sizeof (t))))
@ -63,6 +63,7 @@ typedef enum {
} etype_t;
extern const pr_ushort_t pr_type_size[ev_type_count];
extern const pr_ushort_t pr_type_alignment[ev_type_count];
extern const char * const pr_type_name[ev_type_count];
#define OFS_NULL 0

6
libs/gamecode/pr_opcode.c
View file

@ -41,6 +41,12 @@ VISIBLE const pr_ushort_t pr_type_size[ev_type_count] = {
0, // ev_invalid not a valid/simple type
};
#define EV_TYPE(type) (__alignof__ (pr_##type##_t) / __alignof__ (pr_int_t)),
VISIBLE const pr_ushort_t pr_type_alignment[ev_type_count] = {
#include "QF/progs/pr_type_names.h"
0, // ev_invalid not a valid/simple type
};
#define EV_TYPE(type) #type,
VISIBLE const char * const pr_type_name[ev_type_count] = {
#include "QF/progs/pr_type_names.h"