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| author | Ranjith Kumaran <ranjith@cygnus.com> | 2000-03-17 22:48:54 +0000 |
|---|---|---|
| committer | Ranjith Kumaran <ranjith@cygnus.com> | 2000-03-17 22:48:54 +0000 |
| commit | 03261851a10dd2d6900a0a00a7515a0a46fb5d76 (patch) | |
| tree | 7c22ac6cbbc99fd5cd1b5426853be8d4fd7bfcf1 /libgloss/sparc/libsys/cerror.S | |
| parent | fae4c299f14fc23e2829c8656992eba21f79242a (diff) | |
| download | cygnal-03261851a10dd2d6900a0a00a7515a0a46fb5d76.tar.gz cygnal-03261851a10dd2d6900a0a00a7515a0a46fb5d76.tar.bz2 cygnal-03261851a10dd2d6900a0a00a7515a0a46fb5d76.zip | |
20000317 sourceware import
Diffstat (limited to 'libgloss/sparc/libsys/cerror.S')
| -rw-r--r-- | libgloss/sparc/libsys/cerror.S | 47 |
1 files changed, 47 insertions, 0 deletions
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 |