27 lines
911 B
C
27 lines
911 B
C
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#ifndef GC_PTHREAD_STOP_WORLD_H
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#define GC_PTHREAD_STOP_WORLD_H
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struct thread_stop_info {
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int signal;
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word last_stop_count; /* GC_last_stop_count value when thread */
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/* last successfully handled a suspend */
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/* signal. */
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ptr_t stack_ptr; /* Valid only when stopped. */
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#ifdef NACL
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/* Grab NACL_GC_REG_STORAGE_SIZE pointers off the stack when going into */
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/* a syscall. 20 is more than we need, but it's an overestimate in case*/
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/* the instrumented function uses any callee saved registers, they may */
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/* be pushed to the stack much earlier. Also, on amd64 'push' puts 8 */
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/* bytes on the stack even though our pointers are 4 bytes. */
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#ifdef __arm__
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/* For ARM we save r4-r8, r10-r12, r14 */
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#define NACL_GC_REG_STORAGE_SIZE 9
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#else
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#define NACL_GC_REG_STORAGE_SIZE 20
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#endif
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ptr_t reg_storage[NACL_GC_REG_STORAGE_SIZE];
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#endif
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};
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#endif
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