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30891f35fa
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
/* Copyright (C) 1997-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _LINUX_SPARC32_SYSDEP_H
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#define _LINUX_SPARC32_SYSDEP_H 1
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#include <sysdeps/unix/sysv/linux/sparc/sysdep.h>
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#if IS_IN (rtld)
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# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
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#endif
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#include <tls.h>
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#undef SYS_ify
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#define SYS_ify(syscall_name) __NR_##syscall_name
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#ifdef __ASSEMBLER__
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#define LOADSYSCALL(x) mov __NR_##x, %g1
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#undef PSEUDO
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#define PSEUDO(name, syscall_name, args) \
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.text; \
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ENTRY(name); \
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LOADSYSCALL(syscall_name); \
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ta 0x10; \
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bcc 1f; \
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nop; \
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SYSCALL_ERROR_HANDLER \
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1:
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#undef PSEUDO_NOERRNO
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#define PSEUDO_NOERRNO(name, syscall_name, args)\
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.text; \
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ENTRY(name); \
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LOADSYSCALL(syscall_name); \
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ta 0x10;
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#undef PSEUDO_ERRVAL
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#define PSEUDO_ERRVAL(name, syscall_name, args) \
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.text; \
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ENTRY(name); \
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LOADSYSCALL(syscall_name); \
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ta 0x10;
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#undef PSEUDO_END
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#define PSEUDO_END(name) \
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END(name)
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#ifndef PIC
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# define SYSCALL_ERROR_HANDLER \
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mov %o7, %g1; \
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call __syscall_error; \
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mov %g1, %o7;
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#else
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# if RTLD_PRIVATE_ERRNO
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# define SYSCALL_ERROR_HANDLER \
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0: SETUP_PIC_REG_LEAF(o2,g1) \
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sethi %gdop_hix22(rtld_errno), %g1; \
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xor %g1, %gdop_lox10(rtld_errno), %g1;\
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ld [%o2 + %g1], %g1, %gdop(rtld_errno); \
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st %o0, [%g1]; \
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jmp %o7 + 8; \
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mov -1, %o0;
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# elif defined _LIBC_REENTRANT
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# if IS_IN (libc)
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# define SYSCALL_ERROR_ERRNO __libc_errno
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# else
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# define SYSCALL_ERROR_ERRNO errno
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# endif
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# define SYSCALL_ERROR_HANDLER \
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0: SETUP_PIC_REG_LEAF(o2,g1) \
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sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %g1; \
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add %g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1; \
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ld [%o2 + %g1], %g1, %tie_ld(SYSCALL_ERROR_ERRNO); \
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st %o0, [%g7 + %g1]; \
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jmp %o7 + 8; \
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mov -1, %o0;
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# else
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# define SYSCALL_ERROR_HANDLER \
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0: SETUP_PIC_REG_LEAF(o2,g1) \
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sethi %gdop_hix22(errno), %g1;\
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xor %g1, %gdop_lox10(errno), %g1;\
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ld [%o2 + %g1], %g1, %gdop(errno);\
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st %o0, [%g1]; \
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jmp %o7 + 8; \
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mov -1, %o0;
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# endif /* _LIBC_REENTRANT */
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#endif /* PIC */
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#else /* __ASSEMBLER__ */
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#define __SYSCALL_STRING \
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"ta 0x10;" \
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"bcc 1f;" \
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" nop;" \
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"sub %%g0, %%o0, %%o0;" \
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"1:"
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#define __SYSCALL_CLOBBERS \
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"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
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"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
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"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
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"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
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"cc", "memory"
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#undef HAVE_INTERNAL_BRK_ADDR_SYMBOL
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#define HAVE_INTERNAL_BRK_ADDR_SYMBOL 1
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#endif /* __ASSEMBLER__ */
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/* Pointer mangling support. */
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#if IS_IN (rtld)
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/* We cannot use the thread descriptor because in ld.so we use setjmp
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earlier than the descriptor is initialized. */
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#else
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# ifdef __ASSEMBLER__
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# define PTR_MANGLE(dreg, reg, tmpreg) \
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ld [%g7 + POINTER_GUARD], tmpreg; \
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xor reg, tmpreg, dreg
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# define PTR_DEMANGLE(dreg, reg, tmpreg) PTR_MANGLE (dreg, reg, tmpreg)
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# define PTR_MANGLE2(dreg, reg, tmpreg) \
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xor reg, tmpreg, dreg
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# define PTR_DEMANGLE2(dreg, reg, tmpreg) PTR_MANGLE2 (dreg, reg, tmpreg)
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# else
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# define PTR_MANGLE(var) \
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(var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
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# define PTR_DEMANGLE(var) PTR_MANGLE (var)
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# endif
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#endif
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#endif /* linux/sparc/sysdep.h */
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