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cosmopolitan/libc/intrin/describebacktrace.internal.h

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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"
COSMOPOLITAN_C_START_
Add `dontthrow` attribute to most libc functions This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
2024-01-09 09:26:03 +00:00
const char *DescribeBacktrace(char[160], struct StackFrame *) libcesque;
Add more fixes for new cosmocc toolchain We now have an `#include <cxxabi.h>` header which defines all the APIs Cosmopolitan's implemented so far. The `cosmocc` README.md file is now greatly expanded with documentation.
2023-11-12 06:32:12 +00:00
#define DescribeBacktrace(x) DescribeBacktrace(alloca(160), x)
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
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_DESCRIBEBACKTRACE_INTERNAL_H_ */
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