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Diffstat (limited to 'ports/sysdeps/am33/sysdep.h')
| -rw-r--r-- | ports/sysdeps/am33/sysdep.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/ports/sysdeps/am33/sysdep.h b/ports/sysdeps/am33/sysdep.h new file mode 100644 index 0000000000..2ddb656957 --- /dev/null +++ b/ports/sysdeps/am33/sysdep.h @@ -0,0 +1,81 @@ +/* Copyright 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Alexandre Oliva <aoliva@redhat.com>. + Based on ../i386/sysdep.h. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdeps/generic/sysdep.h> + +#ifdef __ASSEMBLER__ + +/* Syntactic details of assembler. */ + +#ifdef HAVE_ELF +/* For ELF we need the `.type' directive to make shared libs work right. */ +#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg; +#define ASM_SIZE_DIRECTIVE(name) .size name,.-name; + +/* In ELF C symbols are asm symbols. */ +#undef NO_UNDERSCORES +#define NO_UNDERSCORES +#else +#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */ +#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */ +#endif + +/* Define an entry point visible from C. */ +#define ENTRY(name) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \ + ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ + C_LABEL(name) \ + CALL_MCOUNT + +#undef END +#define END(name) \ + ASM_SIZE_DIRECTIVE(name) \ + +/* If compiled for profiling, call `mcount' at the start of each function. */ +#ifdef PROF +/* The mcount code relies on a normal frame pointer being on the stack + to locate our caller, so push one just for its benefit. */ +#define CALL_MCOUNT \ + movm [a3],(sp); mov sp,a3; add -12,sp; \ + call JUMPTARGET(mcount),[],0; add 12,sp; movm (sp),[a3]; +#else +#define CALL_MCOUNT /* Do nothing. */ +#endif + +#ifdef NO_UNDERSCORES +/* Since C identifiers are not normally prefixed with an underscore + on this system, the asm identifier `syscall_error' intrudes on the + C name space. Make sure we use an innocuous name. */ +#define syscall_error __syscall_error +#define mcount _mcount +#endif + +#undef JUMPTARGET +#ifdef PIC +#define JUMPTARGET(name) name##@PLT +#else +#define JUMPTARGET(name) name +#endif + +/* Local label name for asm code. */ +#ifndef L +#define L(name) name +#endif + +#endif /* __ASSEMBLER__ */ |