cosmopolitan/libc/intrin/describebacktrace.internal.h

#ifndef COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_
#define COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_
#include "libc/mem/alloca.h"
#include "libc/nexgen32e/stackframe.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_

const char *DescribeBacktrace(char[64], struct StackFrame *);
#define DescribeBacktrace(x) DescribeBacktrace(alloca(64), x)

COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_ */
Implement pthread_atfork() If threads are being used, then fork() will now acquire and release and runtime locks so that fork() may be safely used from threads. This also makes vfork() thread safe, because pthread mutexes will do nothing when the process is a child of vfork(). More torture tests have been written to confirm this all works like a charm. Additionally: - Invent hexpcpy() api - Rename nsync_malloc_() to kmalloc() - Complete posix named semaphore implementation - Make pthread_create() asynchronous signal safe - Add rm, rmdir, and touch to command interpreter builtins - Invent sigisprecious() and modify sigset functions to use it - Add unit tests for posix_spawn() attributes and fix its bugs One unresolved problem is the reclaiming of *NSYNC waiter memory in the forked child processes, within apps which have threads waiting on locks 2022-10-16 19:05:08 +00:00			`#ifndef COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_`
			`#define COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_`
			`#include "libc/mem/alloca.h"`
			`#include "libc/nexgen32e/stackframe.h"`
			`#if !(__ASSEMBLER__ + __LINKER__ + 0)`
			`COSMOPOLITAN_C_START_`

			`const char DescribeBacktrace(char[64], struct StackFrame );`
			`#define DescribeBacktrace(x) DescribeBacktrace(alloca(64), x)`

			`COSMOPOLITAN_C_END_`
			`#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */`
			`#endif /* COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_ */`