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Make improvements to locking

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This change makes pthread_mutex_lock() as fast as _spinlock() by
default. Thread instability issues on NetBSD have been resolved.
Improvements made to gdtoa thread code. Crash reporting will now
synchronize between threads in a slightly better way.
This commit is contained in:
Justine Tunney 2022-06-19 01:13:03 -07:00
parent 25041b8026
commit d5312b60f7
60 changed files with 890 additions and 629 deletions
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8
libc/stdio/stdout-init.S
View file

@ -25,11 +25,11 @@
.init.start 400,_init_stdout
ezlea __stdout,ax
push STDOUT_FILENO
pop 12(%rax) #→ f.fd
pop 0x0c(%rax) #→ f.fd
mov O_WRONLY,%edx
mov %edx,4(%rax) #→ f.iomode
mov %edx,4(%rax) #→ f.iomode
ezlea __stdout_buf,cx
mov %rcx,24(%rax) #→ f.buf
movl $BUFSIZ,32(%rax) #→ f.size
mov %rcx,0x18(%rax) #→ f.buf
movl $BUFSIZ,0x20(%rax) #→ f.size
mov %rax,stdout(%rip)
.init.end 400,_init_stdout,globl,hidden