projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f8ea3acb | 1 | /* Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
| 847b055c AJ |
2 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
| 3 | This file is part of the GNU C Library. | |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 847b055c AJ |
9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| 847b055c | 14 | |
| 41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free | |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 18 | 02111-1307 USA. */ | |
| 847b055c AJ |
19 | |
| 20 | #include <sysdep.h> | |
| f8ea3acb | 21 | #include <tls.h> |
| 847b055c | 22 | |
| 847b055c AJ |
23 | /* The following code is only used in the shared library when we |
| 24 | compile the reentrant version. Otherwise each system call defines | |
| 25 | each own version. */ | |
| 26 | ||
| 27 | /* The syscall stubs jump here when they detect an error. */ | |
| 28 | ||
| 29 | #undef CALL_MCOUNT | |
| 30 | #define CALL_MCOUNT | |
| 31 | ||
| 32 | .text | |
| 33 | ENTRY(__syscall_error) | |
| 34 | #ifndef PIC | |
| e6ebd2e4 UD |
35 | # if USE___THREAD |
| 36 | # ifndef NOT_IN_libc | |
| 37 | # define SYSCALL_ERROR_ERRNO __libc_errno | |
| 38 | # else | |
| 39 | # define SYSCALL_ERROR_ERRNO errno | |
| 40 | # endif | |
| 41 | basr %r1,0 | |
| 42 | 0: l %r1,1f-0b(%r1) | |
| 43 | ear %r3,%a0 | |
| 44 | lcr %r2,%r2 | |
| 45 | st %r2,0(%r1,%r3) | |
| 46 | lhi %r2,-1 | |
| 47 | br %r14 | |
| 48 | 1: .long SYSCALL_ERROR_ERRNO@ntpoff | |
| 49 | # elif !defined _LIBC_REENTRANT | |
| 50 | basr %r1,0 | |
| 51 | 0: l %r1,1f-0b(%r1) | |
| 52 | lcr %r2,%r2 | |
| 53 | st %r2,0(%r1) | |
| 54 | lhi %r2,-1 | |
| 55 | br %r14 | |
| 56 | 1: .long errno | |
| 57 | # else | |
| 58 | stm %r13,%r15,52(%r15) | |
| 844a34a2 UD |
59 | cfi_offset (%r15, -36) |
| 60 | cfi_offset (%r14, -40) | |
| 61 | cfi_offset (%r13, -44) | |
| e6ebd2e4 UD |
62 | lr %r0,%r15 |
| 63 | ahi %r15,-96 | |
| 844a34a2 | 64 | cfi_adjust_cfa_offset (96) |
| e6ebd2e4 UD |
65 | lcr %r13,%r2 |
| 66 | st %r0,0(%r15) | |
| 67 | basr %r1,0 | |
| 68 | 0: l %r1,1f-0b(%r1) | |
| 69 | basr %r14,%r1 | |
| 70 | st %r13,0(%r2) | |
| 71 | lm %r13,%r15,148(%r15) | |
| 844a34a2 | 72 | cfi_adjust_cfa_offset (-96) |
| e6ebd2e4 UD |
73 | lhi %r2,-1 |
| 74 | br %r14 | |
| 75 | 1: .long __errno_location | |
| 847b055c AJ |
76 | #endif |
| 77 | #else | |
| e6ebd2e4 UD |
78 | # if RTLD_PRIVATE_ERRNO |
| 79 | basr %r1,0 | |
| 80 | 0: al %r1,1f-0b(%r1) | |
| 81 | lcr %r2,%r2 | |
| 82 | st %r2,0(%r1) | |
| 83 | lhi %r2,-1 | |
| 84 | br %r14 | |
| 85 | 1: .long errno - 0b | |
| 86 | # elif USE___THREAD | |
| 87 | # ifndef NOT_IN_libc | |
| 88 | # define SYSCALL_ERROR_ERRNO __libc_errno | |
| 89 | # else | |
| 90 | # define SYSCALL_ERROR_ERRNO errno | |
| 91 | # endif | |
| 92 | basr %r1,0 | |
| 93 | 0: al %r1,1f-0b(%r1) | |
| 94 | ear %r3,%a0 | |
| 95 | l %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1) | |
| 96 | lcr %r2,%r2 | |
| 97 | st %r2,0(%r1,%r3) | |
| 98 | lhi %r2,-1 | |
| 99 | br %r14 | |
| 100 | 1: .long _GLOBAL_OFFSET_TABLE_-0b | |
| 101 | # elif !defined _LIBC_REENTRANT | |
| 102 | basr %r1,0 | |
| 103 | 0: al %r1,1f-0b(%r1) | |
| 104 | l %r1,errno@GOT(%r1) | |
| 105 | lcr %r2,%r2 | |
| 106 | st %r2,0(0,%r1) | |
| 107 | lhi %r2,-1 | |
| 108 | br %r14 | |
| 109 | 1: .long _GLOBAL_OFFSET_TABLE_-0b | |
| 110 | # else | |
| 111 | stm %r11,%r15,44(%r15) | |
| 844a34a2 UD |
112 | cfi_offset (%r15, -36) |
| 113 | cfi_offset (%r14, -40) | |
| 114 | cfi_offset (%r13, -44) | |
| 115 | cfi_offset (%r12, -48) | |
| 116 | cfi_offset (%r11, -52) | |
| e6ebd2e4 UD |
117 | lr %r0,%r15 |
| 118 | ahi %r15,-96 | |
| 844a34a2 | 119 | cfi_adjust_cfa_offset (96) |
| e6ebd2e4 UD |
120 | lcr %r11,%r2 |
| 121 | st %r0,0(%r15) | |
| 122 | basr %r13,0 | |
| 123 | 0: l %r12,1f-0b(%r13) | |
| 124 | l %r1,2f-0b(%r13) | |
| 125 | la %r12,0(%r12,%r13) | |
| 126 | bas %r14,0(%r1,%r13) | |
| 127 | st %r11,0(%r2) | |
| 128 | lm %r11,%r15,140(%r15) | |
| 844a34a2 | 129 | cfi_adjust_cfa_offset (-96) |
| e6ebd2e4 UD |
130 | lhi %r2,-1 |
| 131 | br %r14 | |
| 132 | 1: .long _GLOBAL_OFFSET_TABLE_-0b | |
| 133 | 2: .long __errno_location@PLT-0b | |
| 134 | # endif | |
| 847b055c AJ |
135 | #endif |
| 136 | ||
| 137 | END (__syscall_error) |