| ! Set errno. |
| ! This function is called by all the syscall stubs. |
| ! |
| ! FIXME: We assume errno is the first member of struct _reent. |
| ! Not sure what to do about this. |
| |
| #include "syscallasm.h" |
| |
| DATA_SECTION |
| ALIGN (4) |
| GLOBAL (ASM_SYMBOL (errno)) ! FIXME: ASM_PRIVATE_SYMBOL ? |
| ASM_SYMBOL (errno): |
| WORD (0) |
| |
| TEXT_SECTION |
| ALIGN (4) |
| |
| GLOBAL (ASM_PRIVATE_SYMBOL (cerror)) |
| ASM_PRIVATE_SYMBOL (cerror): |
| sethi %hi (ASM_SYMBOL (errno)),%g1 |
| st %o0,[%g1+%lo (ASM_SYMBOL (errno))] |
| jmpl %o7+8,%g0 |
| mov -1,%o0 |
| |
| GLOBAL (ASM_PRIVATE_SYMBOL (cerror_r)) |
| ASM_PRIVATE_SYMBOL (cerror_r): |
| st %o0,[%o1] |
| jmpl %o7+8,%g0 |
| mov -1,%o0 |
| |
| ! Since all system calls need this file, we put various state globals |
| ! here as well. |
| |
| DATA_SECTION |
| |
| ! CURBRK contains the current top of allocated space. |
| ! END is a private symbol in svr4, but a public one in sunos4. |
| ! FIXME: CURBRK is 4 bytes for now. |
| |
| ALIGN (4) |
| GLOBAL (ASM_PRIVATE_SYMBOL (curbrk)) |
| ASM_PRIVATE_SYMBOL (curbrk): |
| #ifdef SVR4 |
| WORD (ASM_PRIVATE_SYMBOL (end)) |
| #else |
| WORD (ASM_SYMBOL (end)) |
| #endif |