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Support showing dispatch queue name in LLDB
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src/kernel/emulation/linux/bsdthread/bsdthread_register.c
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src/kernel/emulation/linux/bsdthread/bsdthread_register.c
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#include "../errno.h"
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#include "../../../../../platform-include/sys/errno.h"
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#include "../signal/sigexc.h"
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#include "../mach/lkm.h"
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#include "../../../../external/lkm/api.h"
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#include <stdint.h>
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#include <pthread/tsd_private.h>
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#include <linux-syscalls/linux.h>
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int pthread_obj_size;
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#define WORKQ_FEATURE_FINEPRIO 0x02
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#define WORKQ_FEATURE_KEVENT 0x40
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struct _pthread_registration_data {
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uint64_t version;
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uint64_t dispatch_queue_offset;
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uint64_t main_qos;
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uint32_t tsd_offset;
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uint32_t return_to_kernel_offset;
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uint32_t mach_thread_self_offset;
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} __attribute__ ((packed));
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static struct _pthread_registration_data g_pth_regdata;
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long sys_bsdthread_register(void* thread_start, void* wqthread, int pthsize,
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void* dummy, void* targetconc, unsigned long long dpq_offset)
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const struct _pthread_registration_data* pth_regdata,
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unsigned long pth_regdata_len, unsigned long long dpq_offset)
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{
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pthread_obj_size = pthsize;
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pthread_entry_point = (bsdthread_entry_t) thread_start;
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wqueue_entry_point = (bsdwqthread_entry_t) wqthread;
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g_pth_regdata = *pth_regdata;
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struct set_thread_handles_args args;
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args.pthread_handle = (unsigned long) _pthread_getspecific_direct(_PTHREAD_TSD_SLOT_PTHREAD_SELF);
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args.dispatch_qaddr = args.pthread_handle + g_pth_regdata.tsd_offset + g_pth_regdata.dispatch_queue_offset;
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lkm_call(NR_set_thread_handles, &args);
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return /* WORKQ_FEATURE_KEVENT | WORKQ_FEATURE_FINEPRIO | PTHREAD_FEATURE_QOS_MAINTENANCE
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| PTHREAD_FEATURE_DISPATCHFUNC | PTHREAD_FEATURE_QOS_DEFAULT */ 0;
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}
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void* funarg, unsigned long stacksize, unsigned int flags)
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{
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sigexc_thread_setup();
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struct set_thread_handles_args args;
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args.pthread_handle = (unsigned long) self;
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args.dispatch_qaddr = args.pthread_handle + g_pth_regdata.tsd_offset + g_pth_regdata.dispatch_queue_offset;
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lkm_call(NR_set_thread_handles, &args);
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pthread_entry_point(self, thread_port, funptr, funarg, stacksize, flags);
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}
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src/kernel/emulation/linux/bsdthread/bsdthread_register.h
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src/kernel/emulation/linux/bsdthread/bsdthread_register.h
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extern bsdthread_entry_t pthread_entry_point;
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extern bsdwqthread_entry_t wqueue_entry_point;
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struct _pthread_registration_data;
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long sys_bsdthread_register(void* thread_start, void* wqthread, int pthsize,
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void* dummy, void* targetconc, unsigned long long dpq_offset);
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const struct _pthread_registration_data* pth_regdata,
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unsigned long pth_regdata_len, unsigned long long dpq_offset);
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void pthread_entry_point_wrapper(void* self, int thread_port, void* funptr,
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void* funarg, unsigned long stacksize, unsigned int flags);
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void wqueue_entry_point_wrapper(void* self, int thread_port, void* stackaddr,
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src/kernel/emulation/linux/signal/sigexc.c
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src/kernel/emulation/linux/signal/sigexc.c
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#include <stddef.h>
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#include <sys/signal.h>
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#include <linux-syscalls/linux.h>
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#include <pthread/tsd_private.h>
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#include "sigaltstack.h"
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#include "../mach/lkm.h"
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#include "../../../../external/lkm/api.h"
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void darling_sigexc_uninstall(void);
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void sigrt_handler(int signum, struct linux_siginfo* info, void* ctxt);
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#define SIGEXC_TSD_KEY 102
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#define SIGEXC_CONTEXT_TSD_KEY 103
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static char sigexc_altstack[8*1024];
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#if defined(__x86_64__)