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syscall() is a variadic function, so we need to be careful when passing
const values in there without specifying their type.
For -1, we did not specify it, and on 64 bit architectures the de facto
passed value was 0xFFFFFFFF instead of 0xFFFFFFFFFFFFFFFF. Fix it and
add a test.
Closes #5921.
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This factorizes const arguments into the shortest flags OR bitmask
possible so they are easy to read. E.g:
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul
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This annotates syscall arguments so they are easier to read without
having to pull out the syscall's man page. E.g:
syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul,
/*prot=*/0ul, ...
Signed-off-by: Florent Revest <revest@chromium.org>
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Represent array[const[X, int8], N] as string["XX...X"].
This replaces potentially huge number of:
NONFAILING(*(uint8_t*)0x2000126c = 0);
NONFAILING(*(uint8_t*)0x2000126d = 0);
NONFAILING(*(uint8_t*)0x2000126e = 0);
with a single memcpy. In one reproducer we had 3991 such lines.
Also replace memcpy's with memset's when possible.
Update #1070
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Add some tests that verify source we get for various programs.
Update #1070
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