diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h | 115 |
1 files changed, 6 insertions, 109 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h index b1e80bcfcd..459b742f7a 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h @@ -18,122 +18,19 @@ #include <sysdep.h> #include <tls.h> -#ifndef __ASSEMBLER__ -# include <nptl/pthreadP.h> -#endif +#include <nptl/pthreadP.h> #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -L(pseudo_cancel): \ - cfi_startproc; \ - STM_##args \ - stm %r12,%r15,48(%r15); \ - cfi_offset (%r15, -36); \ - cfi_offset (%r14, -40); \ - cfi_offset (%r13, -44); \ - cfi_offset (%r12, -48); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - cfi_adjust_cfa_offset (96); \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r1,1f-0b(%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - .if SYS_ify (syscall_name) < 256; \ - svc SYS_ify (syscall_name); \ - .else; \ - lhi %r1,SYS_ify (syscall_name); \ - svc 0; \ - .endif; \ - LR7_##args \ - l %r1,2f-0b(%r13); \ - lr %r12,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r12; \ - lm %r12,%r15,48+96(%r15); \ - cfi_endproc; \ - j L(pseudo_check); \ -1: .long CENABLE-0b; \ -2: .long CDISABLE-0b; \ -ENTRY(name) \ - SINGLE_THREAD_P(%r1) \ - jne L(pseudo_cancel); \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lhi %r4,-4095; \ - clr %r2,%r4; \ - jnl SYSCALL_ERROR_LABEL; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ -L(pseudo_end): - -# if IS_IN (libpthread) -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# elif IS_IN (libc) -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE __librt_enable_asynccancel -# define CDISABLE __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -#define STM_0 /* Nothing */ -#define STM_1 st %r2,8(%r15); -#define STM_2 stm %r2,%r3,8(%r15); -#define STM_3 stm %r2,%r4,8(%r15); -#define STM_4 stm %r2,%r5,8(%r15); -#define STM_5 stm %r2,%r5,8(%r15); -#define STM_6 stm %r2,%r7,8(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 l %r2,8+96(%r15); -#define LM_2 lm %r2,%r3,8+96(%r15); -#define LM_3 lm %r2,%r4,8+96(%r15); -#define LM_4 lm %r2,%r5,8+96(%r15); -#define LM_5 lm %r2,%r5,8+96(%r15); -#define LM_6 lm %r2,%r5,8+96(%r15); \ - cfi_offset (%r7, -68); \ - l %r7,96+96(%r15); +# define SINGLE_THREAD_P \ + __glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0) -#define LR7_0 /* Nothing */ -#define LR7_1 /* Nothing */ -#define LR7_2 /* Nothing */ -#define LR7_3 /* Nothing */ -#define LR7_4 /* Nothing */ -#define LR7_5 /* Nothing */ -#define LR7_6 l %r7,28+96(%r15); \ - cfi_restore (%r7); - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ear reg,%a0; \ - icm reg,15,MULTIPLE_THREADS_OFFSET(reg); -# endif - -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif +#define RTLD_SINGLE_THREAD_P \ + __glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0) |