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Update.
1999-04-12 Philip Blundell <philb@gnu.org> * elf/elf.h: Update ARM definitions to match current gas2. * sysdeps/arm/bits/endian.h: Support big endian operation. * sysdeps/unix/sysv/linux/arm/ioperm.c (_outw, _outb, _outl): Don't bother range checking the port number. * sysdeps/unix/sysv/linux/arm/vfork.S: New file. * sysdeps/unix/sysv/linux/arm/sysdep.h (INLINE_SYSCALL): Include the syscall name in assembler output for ease of debugging. * sysdeps/unix/sysv/linux/arm/sigaction.c: Don't rely on undefined compiler behaviour. * sysdeps/unix/sysv/linux/arm/sigrestorer.S: New file. * sysdeps/unix/sysv/linux/arm/Makefile [$(subdir) = signal] (sysdep_routines): Add sigrestorer. * string/tester.c (test_strcpy): Add new tests for unaligned arguments. * sysdeps/arm/bits/string.h: Delete inline implementations of strcpy and stpcpy.
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@ -39,11 +39,14 @@ int __libc_missing_rt_sigs;
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#define SA_RESTORER 0x04000000
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extern void __default_sa_restorer(void);
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extern void __default_rt_sa_restorer(void);
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/* When RT signals are in use we need to use a different return stub. */
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#ifdef __NR_rt_sigreturn
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#define choose_restorer(flags) \
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(flags & SA_SIGINFO) ? &&__default_rt_sa_restorer \
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: &&__default_sa_restorer
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(flags & SA_SIGINFO) ? __default_rt_sa_restorer \
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: __default_sa_restorer
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#else
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#define choose_restorer(flags) \
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&&__default_sa_restorer
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@ -142,20 +145,6 @@ __sigaction (sig, act, oact)
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#endif
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}
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return result;
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/* If no SA_RESTORER function was specified by the application we use
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this one. This avoids the need for the kernel to synthesise a return
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instruction on the stack, which would involve expensive cache flushes. */
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__default_sa_restorer:
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asm volatile ("swi %0" : : "i" (__NR_sigreturn));
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#ifdef __NR_rt_sigreturn
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__default_rt_sa_restorer:
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asm volatile ("swi %0" : : "i" (__NR_rt_sigreturn));
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#endif
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/* NOTREACHED */
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return -1;
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}
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weak_alias (__sigaction, sigaction)
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