From 03261851a10dd2d6900a0a00a7515a0a46fb5d76 Mon Sep 17 00:00:00 2001 From: Ranjith Kumaran Date: Fri, 17 Mar 2000 22:48:54 +0000 Subject: 20000317 sourceware import --- libgloss/sparc/libsys/cerror.S | 47 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libgloss/sparc/libsys/cerror.S (limited to 'libgloss/sparc/libsys/cerror.S') diff --git a/libgloss/sparc/libsys/cerror.S b/libgloss/sparc/libsys/cerror.S new file mode 100644 index 000000000..8ad99c281 --- /dev/null +++ b/libgloss/sparc/libsys/cerror.S @@ -0,0 +1,47 @@ +! 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 -- cgit v1.2.3