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Restart CI for New Technology and UBSAN hunting

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Continuous Integration (via runit and runitd) is now re-enabled on win7
and win10. The `make test` command, which runs the tests on all systems
is now the fastest and most stable it's been since the project started.

UBSAN is now enabled in MODE=dbg in addition to ASAN. Many instances of
undefined behavior have been removed. Mostly things like passing a NULL
argument to memcpy(), which works fine with Cosmopolitan Libc, but that
doesn't prevents the compiler from being unhappy. There was an issue w/
GNU make where static analysis claims a sprintf() call can overflow. We
also now have nicer looking crash reports on Windows since uname should
now be supported and msys64 addr2line works reliably.
This commit is contained in:
Justine Tunney 2022-03-21 03:46:16 -07:00
parent d5ff2c3fb9
commit 5e8ae2d5bc
80 changed files with 506 additions and 249 deletions
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12
libc/intrin/kprintf.greg.c
View file

@ -43,9 +43,6 @@
#include "libc/sysv/consts/nr.h"
#include "libc/sysv/consts/prot.h"
#define MAXT (24 * 60 * 60 * 1000000000ull)
#define WRAP ((MAXT + 1) / 10 * 33)
struct Timestamps {
unsigned long long birth;
unsigned long long start;
@ -56,6 +53,13 @@ extern bool __replmode;
extern bool __nomultics;
volatile unsigned long long __kbirth;
static inline uint64_t ClocksToNanos(uint64_t x, uint64_t y) {
// approximation of round(x*.323018) which is usually
// the ratio between inva rdtsc ticks and nanoseconds
uint128_t difference = x - y;
return (difference * 338709) >> 20;
}
privileged static struct Timestamps kenter(void) {
struct Timestamps ts;
ts.start = rdtsc();
@ -336,7 +340,7 @@ privileged static size_t kformat(char *b, size_t n, const char *fmt, va_list va,
}
continue;
case 'T':
x = unsignedsubtract(ts.start, ts.birth) % WRAP * 10 / 33;
x = ClocksToNanos(ts.start, ts.birth) % 86400000000000;
goto FormatUnsigned;
case 'P':
if (!__vforked) {