mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
4631d34d0d
It's now possible to use sigaltstack() to recover from stack overflows on Windows. Several bugs in sigaltstack() have been fixed, for all our supported platforms. There's a newer better example showing how to use this, along with three independent unit tests just to further showcase the various techniques.
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_CALLS_STRACE_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_CALLS_STRACE_INTERNAL_H_
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#include "libc/intrin/likely.h"
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#include "libc/runtime/runtime.h"
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#define _NTTRACE 0 /* not configurable w/ flag yet */
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#define _POLLTRACE 0 /* not configurable w/ flag yet */
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#define _DATATRACE 1 /* not configurable w/ flag yet */
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#define _LOCKTRACE 0 /* not configurable w/ flag yet */
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#define _STDIOTRACE 0 /* not configurable w/ flag yet */
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#define _KERNTRACE 0 /* not configurable w/ flag yet */
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#define _TIMETRACE 0 /* not configurable w/ flag yet */
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#define STRACE_PROLOGUE "%rSYS %6P %6H %'18T "
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#ifdef SYSDEBUG
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#define STRACE(FMT, ...) \
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do { \
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if (UNLIKELY(strace_enter())) { \
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__stracef(STRACE_PROLOGUE FMT "\n", ##__VA_ARGS__); \
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ftrace_enabled(+1); \
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} \
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} while (0)
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#else
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#define STRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _DATATRACE
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#define DATATRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
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#else
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#define DATATRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _POLLTRACE
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#define POLLTRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
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#else
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#define POLLTRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _KERNTRACE
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#define KERNTRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
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#else
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#define KERNTRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _STDIOTRACE
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#define STDIOTRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
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#else
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#define STDIOTRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _NTTRACE
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#define NTTRACE(FMT, ...) STRACE("\e[2m" FMT "\e[0m", ##__VA_ARGS__)
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#else
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#define NTTRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _LOCKTRACE
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#define LOCKTRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
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#else
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#define LOCKTRACE(FMT, ...) (void)0
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#endif
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#if defined(SYSDEBUG) && _TIMETRACE
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#define TIMETRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
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#else
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#define TIMETRACE(FMT, ...) (void)0
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#endif
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void __stracef(const char *, ...);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_STRACE_INTERNAL_H_ */
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