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annotate doc/posix-functions/longjmp.texi @ 13549:bb0ceefd22dc

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avoid some overlong lines from posix urls, etc.
author Karl Berry <karl@freefriends.org>
date Fri, 13 Aug 2010 11:50:58 -0700
parents c83dc7e8df57
children
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070329237839 Rename two directories: headers -> posix-headers, functions -> posix-functions.
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1 @node longjmp
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2 @section @code{longjmp}
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3 @findex longjmp
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4
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bb0ceefd22dc avoid some overlong lines from posix urls, etc.
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5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/longjmp.html}
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6
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7 Gnulib module: ---
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8
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9 Portability problems fixed by Gnulib:
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10 @itemize
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11 @end itemize
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12
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13 Portability problems not fixed by Gnulib:
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14 @itemize
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15 @item
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16 The effects of this call are system and compiler optimization dependent,
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17 since it restores the contents of register-allocated variables but not
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18 the contents of stack-allocated variables.
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19 @item
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20 When longjumping out of a signal handler that was being executed on an
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21 alternate stack (installed through @code{sigaltstack}), on FreeBSD, NetBSD,
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22 OpenBSD, you need to clear the @code{SS_ONSTACK} flag in the @code{stack_t}
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23 structure managed by the kernel.
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24 @end itemize