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| author | Sverker Eriksson <[email protected]> | 2017-12-21 12:00:28 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2018-01-03 16:43:31 +0100 |
| commit | 898352fd68022432c1e6f8d9b7a926394d3e8899 (patch) | |
| tree | d6ceb35362f547e6291ade648728d068842fde15 /erts/emulator | |
| parent | 3d21f793538927ae88f78504a11dd898e8ca1a7a (diff) | |
| download | otp-898352fd68022432c1e6f8d9b7a926394d3e8899.tar.gz otp-898352fd68022432c1e6f8d9b7a926394d3e8899.tar.bz2 otp-898352fd68022432c1e6f8d9b7a926394d3e8899.zip | |
Add PRIMOP_ABI_VSN to erts checksum
in order to detect incompatible changes in primop interface
(which we just did for bs_put_utf8) and refuse hipe loading.
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/hipe/hipe_mkliterals.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/erts/emulator/hipe/hipe_mkliterals.c b/erts/emulator/hipe/hipe_mkliterals.c index 4573980e1e..1ebe4e1188 100644 --- a/erts/emulator/hipe/hipe_mkliterals.c +++ b/erts/emulator/hipe/hipe_mkliterals.c @@ -535,6 +535,11 @@ static const struct rts_param rts_params[] = { static unsigned int literals_crc; static unsigned int system_crc; +/* + * Change this version value to detect incompatible changes in primop interface. + */ +#define PRIMOP_ABI_VSN 0x090300 /* erts-9.3 */ + static void compute_crc(void) { unsigned int crc_value; @@ -550,6 +555,8 @@ static void compute_crc(void) for (i = 0; i < NR_PARAMS; ++i) if (rts_params[i].is_defined) crc_value = crc_update_int(crc_value, &rts_params[i].value); + + crc_value ^= PRIMOP_ABI_VSN; crc_value &= 0x07FFFFFF; system_crc = crc_value; } |