diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h | 117 |
1 files changed, 6 insertions, 111 deletions
diff --git a/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h b/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h index 47b92d99b6..73b623614d 100644 --- a/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h @@ -18,124 +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) \ - .type __##syscall_name##_nocancel, @function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - cfi_startproc; \ - DO_CALL (syscall_name, args); \ - bne r7, zero, SYSCALL_ERROR_LABEL; \ - ret; \ - cfi_endproc; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - ENTRY (name) \ - SINGLE_THREAD_P(r2); \ - bne r2, zero, pseudo_cancel; \ - DO_CALL (syscall_name, args); \ - bne r7, zero, SYSCALL_ERROR_LABEL; \ - ret; \ - pseudo_cancel: \ - SAVESTK_##args; /* save syscall args and adjust stack */ \ - SAVEREG(ra, 0); /* save return address */ \ - SAVEREG(r22, 4); /* save GOT pointer */ \ - nextpc r22; \ -1: movhi r2, %hiadj(_gp_got - 1b); \ - addi r2, r2, %lo(_gp_got - 1b); \ - add r22, r22, r2; \ - CENABLE; \ - callr r3; \ - stw r2, 8(sp); /* save mask */ \ - LOADARGS_##args; \ - movi r2, SYS_ify(syscall_name); \ - trap; \ - stw r2, 12(sp); /* save syscall result */ \ - stw r7, 16(sp); /* save syscall error flag */ \ - ldw r4, 8(sp); /* pass mask as argument 1 */ \ - CDISABLE; \ - callr r3; \ - ldw r7, 16(sp); /* restore syscall error flag */ \ - ldw r2, 12(sp); /* restore syscall result */ \ - ldw ra, 0(sp); /* restore return address */ \ - ldw r22, 4(sp); /* restore GOT pointer */ \ - RESTORESTK_##args; \ - bne r7, zero, SYSCALL_ERROR_LABEL; - - -# undef PSEUDO_END -# define PSEUDO_END(sym) \ - SYSCALL_ERROR_HANDLER \ - END (sym) - -#define SAVEREG(REG, LOC) stw REG, LOC(sp); cfi_rel_offset (REG, LOC) -#define SAVESTK(X) subi sp, sp, X; cfi_adjust_cfa_offset(X) -#define SAVESTK_0 SAVESTK(20) -#define SAVEARG_1 SAVEREG(r4, 20) -#define SAVESTK_1 SAVESTK(24); SAVEARG_1 -#define SAVEARG_2 SAVEREG(r5, 24); SAVEARG_1 -#define SAVESTK_2 SAVESTK(28); SAVEARG_2 -#define SAVEARG_3 SAVEREG(r6, 28); SAVEARG_2 -#define SAVESTK_3 SAVESTK(32); SAVEARG_3 -#define SAVEARG_4 SAVEREG(r7, 32); SAVEARG_3 -#define SAVESTK_4 SAVESTK(36); SAVEARG_4 -#define SAVESTK_5 SAVESTK_4 -#define SAVESTK_6 SAVESTK_5 - -#define LOADARGS_0 -#define LOADARGS_1 ldw r4, 20(sp) -#define LOADARGS_2 LOADARGS_1; ldw r5, 24(sp) -#define LOADARGS_3 LOADARGS_2; ldw r6, 28(sp) -#define LOADARGS_4 LOADARGS_3; ldw r7, 32(sp) -#define LOADARGS_5 LOADARGS_4; ldw r8, 36(sp) -#define LOADARGS_6 LOADARGS_5; ldw r9, 40(sp) +# define SINGLE_THREAD_P \ + __glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0) -#define RESTORESTK(X) addi sp, sp, X; cfi_adjust_cfa_offset(-X) -#define RESTORESTK_0 RESTORESTK(20) -#define RESTORESTK_1 RESTORESTK(24) -#define RESTORESTK_2 RESTORESTK(28) -#define RESTORESTK_3 RESTORESTK(32) -#define RESTORESTK_4 RESTORESTK(36) -#define RESTORESTK_5 RESTORESTK(36) -#define RESTORESTK_6 RESTORESTK(36) - -# if IS_IN (libpthread) -# define CENABLE ldw r3, %call(__pthread_enable_asynccancel)(r22) -# define CDISABLE ldw r3, %call(__pthread_disable_asynccancel)(r22) -# elif IS_IN (librt) -# define CENABLE ldw r3, %call(__librt_enable_asynccancel)(r22) -# define CDISABLE ldw r3, %call(__librt_disable_asynccancel)(r22) -# elif IS_IN (libc) -# define CENABLE ldw r3, %call(__libc_enable_asynccancel)(r22) -# define CDISABLE ldw r3, %call(__libc_disable_asynccancel)(r22) -# else -# error Unsupported library -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) \ - == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ldw reg, MULTIPLE_THREADS_OFFSET(r23) -#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) |