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comparison gcc/doc/hostconfig.texi @ 67:f6334be47118

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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents 77e2b8dfacca
children 04ced10e8804
comparison
equal deleted inserted replaced
65:65488c3d617d 67:f6334be47118
41 @deftypefn {Host Hook} void HOST_HOOKS_EXTRA_SIGNALS (void) 41 @deftypefn {Host Hook} void HOST_HOOKS_EXTRA_SIGNALS (void)
42 This host hook is used to set up handling for extra signals. The most 42 This host hook is used to set up handling for extra signals. The most
43 common thing to do in this hook is to detect stack overflow. 43 common thing to do in this hook is to detect stack overflow.
44 @end deftypefn 44 @end deftypefn
45 45
46 @deftypefn {Host Hook} void * HOST_HOOKS_GT_PCH_GET_ADDRESS (size_t @var{size}, int @var{fd}) 46 @deftypefn {Host Hook} {void *} HOST_HOOKS_GT_PCH_GET_ADDRESS (size_t @
47 @var{size}, int @var{fd})
47 This host hook returns the address of some space that is likely to be 48 This host hook returns the address of some space that is likely to be
48 free in some subsequent invocation of the compiler. We intend to load 49 free in some subsequent invocation of the compiler. We intend to load
49 the PCH data at this address such that the data need not be relocated. 50 the PCH data at this address such that the data need not be relocated.
50 The area should be able to hold @var{size} bytes. If the host uses 51 The area should be able to hold @var{size} bytes. If the host uses
51 @code{mmap}, @var{fd} is an open file descriptor that can be used for 52 @code{mmap}, @var{fd} is an open file descriptor that can be used for
52 probing. 53 probing.
53 @end deftypefn 54 @end deftypefn
54 55
55 @deftypefn {Host Hook} int HOST_HOOKS_GT_PCH_USE_ADDRESS (void * @var{address}, size_t @var{size}, int @var{fd}, size_t @var{offset}) 56 @deftypefn {Host Hook} int HOST_HOOKS_GT_PCH_USE_ADDRESS (void * @var{address}, @
57 size_t @var{size}, int @var{fd}, size_t @var{offset})
56 This host hook is called when a PCH file is about to be loaded. 58 This host hook is called when a PCH file is about to be loaded.
57 We want to load @var{size} bytes from @var{fd} at @var{offset} 59 We want to load @var{size} bytes from @var{fd} at @var{offset}
58 into memory at @var{address}. The given address will be the result of 60 into memory at @var{address}. The given address will be the result of
59 a previous invocation of @code{HOST_HOOKS_GT_PCH_GET_ADDRESS}. 61 a previous invocation of @code{HOST_HOOKS_GT_PCH_GET_ADDRESS}.
60 Return @minus{}1 if we couldn't allocate @var{size} bytes at @var{address}. 62 Return @minus{}1 if we couldn't allocate @var{size} bytes at @var{address}.