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fix bug with side modules macro and add more comments

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This commit is contained in:
vms 2019-08-21 14:51:07 +02:00
parent 460d09a911
commit 145771bbfd
2 changed files with 7 additions and 1 deletions
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2
sdk/side_module_api.h
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@ -44,7 +44,7 @@ char * module_name ## _call(const char *ptr, int length) { \
\
unsigned int result_size = 0; \
for (int i = 0; i < 4; ++i) { \
result_size = result_size | ((unsigned int)result[i] << 8*i); \
result_size = result_size | (module_name ## _load(result + i) << 8*i); \
} \
\
char *result_out = malloc(result_size + 1); \

6
sdk/syscalls_stubs.c
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@ -1,5 +1,11 @@
#include <stdio.h>
/// Some syscalls could be as the result of importing files like stdio.h that in its turn imports standart I/O
/// descriptors like stdin/stderr/stdout. Each of them is a structure contains some callbacks (e.g.
/// https://github.com/CraneStation/wasi-libc/blob/9bb4cc5c411af8453cbef69c137a4c2337714d89/libc-top-half/musl/src/stdio/stdin.c#L11)
/// These stubs could provide default implementations for syscalls. And please include this file, if you are sure
/// that these syscalls couldn't be used directly.
size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len) {
return 1;
}