mirror of
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.
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
#ifndef COSMOPOLITAN_LIBC_SYSV_CONSTS_SIG_H_
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#define COSMOPOLITAN_LIBC_SYSV_CONSTS_SIG_H_
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#include "libc/runtime/symbolic.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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extern const long SIGABRT;
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extern const long SIGALRM;
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extern const long SIGBUS;
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extern const long SIGCHLD;
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extern const long SIGCONT;
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extern const long SIGEMT;
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extern const long SIGFPE;
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extern const long SIGHUP;
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extern const long SIGILL;
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extern const long SIGINFO;
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extern const long SIGINT;
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extern const long SIGIO;
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extern const long SIGIOT;
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extern const long SIGKILL;
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extern const long SIGPIPE;
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extern const long SIGPOLL;
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extern const long SIGPROF;
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extern const long SIGPWR;
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extern const long SIGQUIT;
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extern const long SIGRTMAX;
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extern const long SIGRTMIN;
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extern const long SIGSEGV;
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extern const long SIGSTKFLT;
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extern const long SIGSTOP;
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extern const long SIGSYS;
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extern const long SIGTERM;
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extern const long SIGTRAP;
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extern const long SIGTSTP;
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extern const long SIGTTIN;
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extern const long SIGTTOU;
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extern const long SIGUNUSED;
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extern const long SIGURG;
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extern const long SIGUSR1;
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extern const long SIGUSR2;
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extern const long SIGVTALRM;
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extern const long SIGWINCH;
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extern const long SIGXCPU;
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extern const long SIGXFSZ;
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extern const long SIG_ATOMIC_MIN;
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extern const long SIG_BLOCK;
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extern const long SIG_SETMASK;
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extern const long SIG_UNBLOCK;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#define SIGABRT LITERALLY(6)
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#define SIGALRM LITERALLY(14)
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#define SIGBUS SYMBOLIC(SIGBUS)
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#define SIGCHLD SYMBOLIC(SIGCHLD)
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#define SIGCONT SYMBOLIC(SIGCONT)
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#define SIGEMT SYMBOLIC(SIGEMT)
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#define SIGFPE LITERALLY(8)
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#define SIGHUP LITERALLY(1)
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#define SIGILL LITERALLY(4)
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#define SIGINFO SYMBOLIC(SIGINFO)
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#define SIGINT LITERALLY(2)
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#define SIGIO SYMBOLIC(SIGIO)
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#define SIGIOT LITERALLY(6)
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#define SIGKILL LITERALLY(9)
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#define SIGPIPE LITERALLY(13)
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#define SIGPOLL SYMBOLIC(SIGPOLL)
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#define SIGPROF LITERALLY(27)
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#define SIGPWR SYMBOLIC(SIGPWR)
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#define SIGQUIT LITERALLY(3)
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#define SIGRTMAX SYMBOLIC(SIGRTMAX)
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#define SIGRTMIN SYMBOLIC(SIGRTMIN)
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#define SIGSEGV LITERALLY(11)
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#define SIGSTKFLT SYMBOLIC(SIGSTKFLT)
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#define SIGSTOP SYMBOLIC(SIGSTOP)
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#define SIGSYS SYMBOLIC(SIGSYS)
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#define SIGTERM LITERALLY(15)
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#define SIGTRAP LITERALLY(5)
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#define SIGTSTP SYMBOLIC(SIGTSTP)
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#define SIGTTIN LITERALLY(21)
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#define SIGTTOU LITERALLY(22)
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#define SIGUNUSED SYMBOLIC(SIGUNUSED)
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#define SIGURG SYMBOLIC(SIGURG)
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#define SIGUSR1 SYMBOLIC(SIGUSR1)
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#define SIGUSR2 SYMBOLIC(SIGUSR2)
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#define SIGVTALRM LITERALLY(26)
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#define SIGWINCH LITERALLY(28)
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#define SIGXCPU LITERALLY(24)
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#define SIGXFSZ LITERALLY(25)
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#define SIG_ATOMIC_MIN SYMBOLIC(SIG_ATOMIC_MIN)
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#define SIG_BLOCK SYMBOLIC(SIG_BLOCK)
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#define SIG_SETMASK SYMBOLIC(SIG_SETMASK)
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#define SIG_UNBLOCK SYMBOLIC(SIG_UNBLOCK)
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#endif /* COSMOPOLITAN_LIBC_SYSV_CONSTS_SIG_H_ */
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