etnaviv: isa: Add struct etna_asm_result

This struct contains the result of an assembler run and will be filled
in Rust and consumed via a C API.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: @LingMan
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28869>

src/etnaviv/isa/asm.h

@@ -9,6 +9,7 @@
 
 #pragma once
 
+#include <stdbool.h>
 #include <stdint.h>
 
 #include "etnaviv/isa/enums.h"
@@ -93,3 +94,11 @@ struct etna_inst {
    struct etna_inst_src src[ETNA_NUM_SRC]; /* source operand */
    unsigned imm;                           /* takes place of src[2] for BRANCH/CALL */
 };
+
+struct etna_asm_result {
+   struct etna_inst *instr;
+   char *error;
+   size_t num_instr;
+   size_t capacity_instr;
+   bool success;
+};