38 lines
1.5 KiB
C
38 lines
1.5 KiB
C
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#ifndef COSMOPOLITAN_LIBC_LOG_GDB_H_
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#define COSMOPOLITAN_LIBC_LOG_GDB_H_
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#include "libc/calls/calls.h"
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#include "libc/runtime/missioncritical.h"
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#include "libc/sysv/consts/nr.h"
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#include "libc/sysv/consts/w.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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extern volatile int g_gdbsync;
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int gdbexec(const char *);
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int attachdebugger(intptr_t);
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#define attachdebugger(CONTINUE_TO_ADDR) /* shorten backtraces */ \
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SYNCHRONIZE_DEBUGGER((attachdebugger)(CONTINUE_TO_ADDR))
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#define SYNCHRONIZE_DEBUGGER(PID) \
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({ \
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int Rc, Pid = (PID); \
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if (Pid != -1) { \
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while ((Rc = WAIT4(Pid, NULL, WNOHANG, NULL)) == 0) { \
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if (g_gdbsync) { \
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g_gdbsync = 0; \
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if (Rc > 0) Pid = 0; \
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break; \
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} else { \
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SCHED_YIELD(); \
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} \
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} \
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} \
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Pid; \
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})
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_LOG_GDB_H_ */
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