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ujit_asm: if mmap() fails with the address hint, try without

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valgrind doesn't seem to support the address hint, and so the fallback
to using NULL will allow valgrind to run.
This commit is contained in:
Mike Dalessio 2021-02-11 12:13:14 -05:00 committed by Alan Wu
parent 05d36f31ca
commit 7a75e9bbaf
1 changed files with 12 additions and 2 deletions
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14
ujit_asm.c
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@ -137,9 +137,19 @@ uint8_t* alloc_exec_mem(uint32_t mem_size)
0
);
if (mem_block == MAP_FAILED) {
mem_block = (uint8_t*)mmap(
NULL, // try again without the address hint (e.g., valgrind)
mem_size,
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS,
-1,
0
);
}
// Check that the memory mapping was successful
if (mem_block == MAP_FAILED)
{
if (mem_block == MAP_FAILED) {
fprintf(stderr, "mmap call failed\n");
exit(-1);
}