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https://github.com/jart/cosmopolitan.git
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226aaf3547
This commit makes numerous refinements to cosmopolitan memory handling.
The default stack size has been reduced from 2mb to 128kb. A new macro
is now provided so you can easily reconfigure the stack size to be any
value you want. Work around the breaking change by adding to your main:
STATIC_STACK_SIZE(0x00200000); // 2mb stack
If you're not sure how much stack you need, then you can use:
STATIC_YOINK("stack_usage_logging");
After which you can `sort -nr o/$MODE/stack.log`. Based on the unit test
suite, nothing in the Cosmopolitan repository (except for Python) needs
a stack size greater than 30kb. There are also new macros for detecting
the size and address of the stack at runtime, e.g. GetStackAddr(). We
also now support sigaltstack() so if you want to see nice looking crash
reports whenever a stack overflow happens, you can put this in main():
ShowCrashReports();
Under `make MODE=dbg` and `make MODE=asan` the unit testing framework
will now automatically print backtraces of memory allocations when
things like memory leaks happen. Bugs are now fixed in ASAN global
variable overrun detection. The memtrack and asan runtimes also handle
edge cases now. The new tools helped to identify a few memory leaks,
which are fixed by this change.
This change should fix an issue reported in #288 with ARG_MAX limits.
Fixing this doubled the performance of MKDEPS.COM and AR.COM yet again.
120 lines
6.2 KiB
C
120 lines
6.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_FMT_CONV_H_
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#define COSMOPOLITAN_LIBC_FMT_CONV_H_
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/nt/struct/filetime.h"
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#define MODERNITYSECONDS 11644473600ull
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#define HECTONANOSECONDS 10000000ull
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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int abs(int) libcesque pureconst;
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long labs(long) libcesque pureconst;
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long long llabs(long long) libcesque pureconst;
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int atoi(const char *) paramsnonnull() libcesque;
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long atol(const char *) paramsnonnull() libcesque;
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long long atoll(const char *) paramsnonnull() libcesque;
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unsigned long strtoul(const char *, char **, int) paramsnonnull((1));
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long long strtoll(const char *, char **, int) paramsnonnull((1));
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unsigned long long strtoull(const char *, char **, int) paramsnonnull((1));
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long long strtonum(const char *, long long, long long, const char **);
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intmax_t div10(intmax_t, unsigned *) hidden;
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intmax_t strtoimax(const char *, char **, int) paramsnonnull((1));
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uintmax_t strtoumax(const char *, char **, int) paramsnonnull((1));
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intmax_t wcstoimax(const wchar_t *, wchar_t **, int);
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uintmax_t wcstoumax(const wchar_t *, wchar_t **, int);
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long wcstol(const wchar_t *, wchar_t **, int);
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unsigned long wcstoul(const wchar_t *, wchar_t **, int);
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long strtol(const char *, char **, int) paramsnonnull((1)) libcesque;
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long sizetol(const char *, long) paramsnonnull() libcesque;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » time ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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int64_t DosDateTimeToUnix(unsigned, unsigned) nothrow;
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struct timeval WindowsTimeToTimeVal(int64_t) nothrow;
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struct timespec WindowsTimeToTimeSpec(int64_t) nothrow;
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int64_t TimeSpecToWindowsTime(struct timespec) nothrow;
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int64_t TimeValToWindowsTime(struct timeval) nothrow;
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struct timeval WindowsDurationToTimeVal(int64_t) nothrow;
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struct timespec WindowsDurationToTimeSpec(int64_t) nothrow;
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static inline struct NtFileTime MakeFileTime(int64_t x) {
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return (struct NtFileTime){(uint32_t)x, (uint32_t)(x >> 32)};
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}
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static inline int64_t ReadFileTime(struct NtFileTime t) {
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uint64_t x = t.dwHighDateTime;
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return x << 32 | t.dwLowDateTime;
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}
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#define FileTimeToTimeSpec(x) WindowsTimeToTimeSpec(ReadFileTime(x))
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#define FileTimeToTimeVal(x) WindowsTimeToTimeVal(ReadFileTime(x))
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#define TimeSpecToFileTime(x) MakeFileTime(TimeSpecToWindowsTime(x))
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#define TimeValToFileTime(x) MakeFileTime(TimeValToWindowsTime(x))
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » manipulation ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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char *dirname(char *);
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char *basename(const char *) nosideeffect;
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char *basename_n(const char *, size_t) nosideeffect;
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bool isabspath(const char *) paramsnonnull() nosideeffect;
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char *stripext(char *);
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char *stripexts(char *);
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » computation ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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typedef struct {
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int quot;
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int rem;
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} div_t;
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typedef struct {
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long int quot;
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long int rem;
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} ldiv_t;
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typedef struct {
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long long int quot;
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long long int rem;
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} lldiv_t;
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typedef struct {
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intmax_t quot;
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intmax_t rem;
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} imaxdiv_t;
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div_t div(int, int) pureconst;
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ldiv_t ldiv(long, long) pureconst;
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lldiv_t lldiv(long long, long long) pureconst;
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imaxdiv_t imaxdiv(intmax_t, intmax_t) pureconst;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § conversion » optimizations ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#if __STDC_VERSION__ + 0 >= 199901L
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#define div(num, den) ((div_t){(num) / (den), (num) % (den)})
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#define ldiv(num, den) ((ldiv_t){(num) / (den), (num) % (den)})
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#define lldiv(num, den) ((lldiv_t){(num) / (den), (num) % (den)})
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#endif
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#ifndef __STRICT_ANSI__
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intmax_t __imaxabs(intmax_t) libcesque pureconst;
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#define imaxabs(x) __imaxabs(x)
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#endif /* !ANSI */
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_FMT_CONV_H_ */
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