projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 2b778ceb | 1 | /* Copyright (C) 1994-2021 Free Software Foundation, Inc. |
| 478b92f0 | 2 | This file is part of the GNU C Library. |
| 28f540f4 | 3 | |
| 478b92f0 | 4 | The GNU C Library is free software; you can redistribute it and/or |
| 41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either | |
| 7 | version 2.1 of the License, or (at your option) any later version. | |
| 28f540f4 | 8 | |
| 478b92f0 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 41bdb6e2 | 12 | Lesser General Public License for more details. |
| 28f540f4 | 13 | |
| 41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 | 15 | License along with the GNU C Library; if not, see |
| 5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
| 28f540f4 | 17 | |
| 66715f83 | 18 | #ifdef __ASSEMBLER__ |
| 28f540f4 RM |
19 | |
| 20 | /* Get the Mach definitions of ENTRY and kernel_trap. */ | |
| 21 | #include <mach/machine/syscall_sw.h> | |
| 22 | ||
| 23 | /* The Mach definitions assume underscores should be prepended to | |
| 24 | symbol names. Redefine them to do so only when appropriate. */ | |
| 25 | #undef EXT | |
| 26 | #undef LEXT | |
| 27 | #define EXT(x) C_SYMBOL_NAME(x) | |
| 28 | #define LEXT(x) C_SYMBOL_NAME(x##:) | |
| 29 | ||
| 1a2df358 RM |
30 | /* For ELF we need to add the `.type' directive to make shared libraries |
| 31 | work right. */ | |
| 32 | #undef ENTRY | |
| 33 | #define ENTRY(name) \ | |
| 7b8e0d49 | 34 | .globl name; \ |
| 1a2df358 RM |
35 | .align ALIGN; \ |
| 36 | .type name,@function; \ | |
| 37 | name: | |
| 1a2df358 | 38 | |
| 28f540f4 RM |
39 | #endif |
| 40 | ||
| 41 | /* This is invoked by things run when there is random lossage, before they | |
| 42 | try to do anything else. Just to be safe, deallocate the reply port so | |
| 43 | bogons arriving on it don't foul up future RPCs. */ | |
| 44 | ||
| 66715f83 | 45 | #ifndef __ASSEMBLER__ |
| 28f540f4 RM |
46 | #define FATAL_PREPARE_INCLUDE <mach/mig_support.h> |
| 47 | #define FATAL_PREPARE __mig_dealloc_reply_port (MACH_PORT_NULL) | |
| 48 | #endif | |
| 49 | ||
| 50 | /* sysdeps/mach/MACHINE/sysdep.h should define the following macros. */ | |
| 51 | ||
| 52 | /* Produce a text assembler label for the C global symbol NAME. */ | |
| 53 | #ifndef ENTRY | |
| 54 | #define ENTRY(name) .error ENTRY not defined by sysdeps/mach/MACHINE/sysdep.h | |
| 55 | /* This is not used on all machines. */ | |
| 56 | #endif | |
| 57 | ||
| 58 | /* Set variables ARGC, ARGV, and ENVP for the arguments | |
| 59 | left on the stack by the microkernel. */ | |
| 60 | #ifndef SNARF_ARGS | |
| 61 | #define SNARF_ARGS(argc, argv, envp) | |
| 62 | #error SNARF_ARGS not defined by sysdeps/mach/MACHINE/sysdep.h | |
| 63 | #endif | |
| 64 | ||
| 28f540f4 RM |
65 | /* LOSE can be defined as the `halt' instruction or something |
| 66 | similar which will cause the process to die in a characteristic | |
| 67 | way suggesting a bug. */ | |
| 68 | #ifndef LOSE | |
| 69 | #define LOSE ({ volatile int zero = 0; zero / zero; }) | |
| 70 | #endif | |
| 71 | ||
| 72 | /* One of these should be defined to specify the stack direction. */ | |
| 73 | #if !defined (STACK_GROWTH_UP) && !defined (STACK_GROWTH_DOWN) | |
| 74 | #error stack direction unspecified | |
| 75 | #endif | |
| 76 | ||
| 77 | /* Used by some assembly code. */ | |
| 28f540f4 | 78 | #define C_SYMBOL_NAME(name) name |