wasi-libc: compile emmalloc.c without strict aliasing #16157
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emmalloc.c does a fair amount of type punning in order to access
the size of memory regions and traverse them.
Unfortunately, that can lead to unwanted optimizations.
This simple test case currently triggers a memory fault:
int main(void) {
char * volatile p = malloc(1);
p = realloc(p, 12);
p = malloc(1);
printf("%p\n", p);
}
Work around this by adding "-fno-strict-aliasing" when compiling
that file.
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emmalloc.cdoes a fair amount of type punning in order to access the size of memory regions and traverse them.Unfortunately, that can lead to unwanted optimizations.
This simple test case currently triggers a memory fault:
Work around this by adding "-fno-strict-aliasing" when compiling that file.