diff options
Diffstat (limited to 'ldso/ldso/sh64/dl-syscalls.h')
| -rw-r--r-- | ldso/ldso/sh64/dl-syscalls.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/ldso/ldso/sh64/dl-syscalls.h b/ldso/ldso/sh64/dl-syscalls.h index f0f4baed8..1db7b6719 100644 --- a/ldso/ldso/sh64/dl-syscalls.h +++ b/ldso/ldso/sh64/dl-syscalls.h @@ -4,3 +4,21 @@ extern int _dl_errno; #define __set_errno(X) {(_dl_errno) = (X);} #include "sys/syscall.h" +#undef __syscall_return +#define __syscall_return(type, res) \ +do { \ + /* \ + * Note: when returning from kernel the return value is in r9 \ + * \ + * This prevents conflicts between return value and arg1 \ + * when dispatching signal handler, in other words makes \ + * life easier in the system call epilogue (see entry.S) \ + */ \ + register unsigned long __sr2 __asm__ ("r2") = res; \ + if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + _dl_errno = -(res); \ + __sr2 = -1; \ + } \ + return (type)(__sr2); \ +} while (0) + |