diff options
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/ChangeLog | 12 | ||||
| -rw-r--r-- | libiberty/libiberty.texi | 7 | ||||
| -rw-r--r-- | libiberty/obstacks.texi | 47 | ||||
| -rw-r--r-- | libiberty/setenv.c | 3 | ||||
| -rw-r--r-- | libiberty/simple-object-mach-o.c | 2 |
5 files changed, 36 insertions, 35 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index fa921e4..06e7c1c 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,7 +1,13 @@ -2013-03-17 Eli Zaretskii <eliz@gnu.org> +2013-03-06 Tobias Burnus <burnus@net-b.de> - * setenv.c [!HAVE_ENVIRON_DECL]: Avoid declaring environ if it is - a macro, as this causes compiler warnings with MinGW. + * libiberty.texi: Update comment, remove lowersections. + * obstacks.texi: Regenerate. + +2013-03-05 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/56526 + * simple-object-mach-o.c (simple_object_mach_o_segment): Initialize + wrapper_sect_offset to avoid a warning. 2013-03-01 Andreas Schwab <schwab@linux-m68k.org> diff --git a/libiberty/libiberty.texi b/libiberty/libiberty.texi index f1e4bdd..f4af66d 100644 --- a/libiberty/libiberty.texi +++ b/libiberty/libiberty.texi @@ -241,13 +241,8 @@ central location from which to use, maintain, and distribute them. * Obstacks:: Stacks of arbitrary objects. @end menu -@c This is generated from the glibc manual using a make-obstacks-texi.sh -@c script of Phil's. Hope it's accurate. -@lowersections -@lowersections +@c This is generated from the glibc manual using contrib/make-obstacks-texi.pl @include obstacks.texi -@raisesections -@raisesections @node Functions @chapter Function, Variable, and Macro Listing. diff --git a/libiberty/obstacks.texi b/libiberty/obstacks.texi index 67780aa..adcd810 100644 --- a/libiberty/obstacks.texi +++ b/libiberty/obstacks.texi @@ -1,5 +1,5 @@ @node Obstacks -@chapter Obstacks +@subsection Obstacks @cindex obstacks An @dfn{obstack} is a pool of memory containing a stack of objects. You @@ -15,25 +15,25 @@ the objects are usually small. And the only space overhead per object is the padding needed to start each object on a suitable boundary. @menu -* Creating Obstacks:: How to declare an obstack in your program. -* Preparing for Obstacks:: Preparations needed before you can - use obstacks. +* Creating Obstacks:: How to declare an obstack in your program. +* Preparing for Obstacks:: Preparations needed before you can + use obstacks. * Allocation in an Obstack:: Allocating objects in an obstack. * Freeing Obstack Objects:: Freeing objects in an obstack. -* Obstack Functions:: The obstack functions are both - functions and macros. +* Obstack Functions:: The obstack functions are both + functions and macros. * Growing Objects:: Making an object bigger by stages. -* Extra Fast Growing:: Extra-high-efficiency (though more - complicated) growing objects. +* Extra Fast Growing:: Extra-high-efficiency (though more + complicated) growing objects. * Status of an Obstack:: Inquiries about the status of an obstack. * Obstacks Data Alignment:: Controlling alignment of objects in obstacks. * Obstack Chunks:: How obstacks obtain and release chunks; - efficiency considerations. + efficiency considerations. * Summary of Obstacks:: @end menu @node Creating Obstacks -@section Creating Obstacks +@subsubsection Creating Obstacks The utilities for manipulating obstacks are declared in the header file @file{obstack.h}. @@ -74,7 +74,7 @@ directly or indirectly. You must also supply a function to free a chunk. These matters are described in the following section. @node Preparing for Obstacks -@section Preparing for Using Obstacks +@subsubsection Preparing for Using Obstacks Each source file in which you plan to use the obstack functions must include the header file @file{obstack.h}, like this: @@ -160,7 +160,7 @@ obstack_alloc_failed_handler = &my_obstack_alloc_failed; @end defvar @node Allocation in an Obstack -@section Allocation in an Obstack +@subsubsection Allocation in an Obstack @cindex allocation (obstacks) The most direct way to allocate an object in an obstack is with @@ -233,7 +233,7 @@ Contrast this with the previous example of @code{savestring} using @code{malloc} (@pxref{Basic Allocation, , , libc, The GNU C Library Reference Manual}). @node Freeing Obstack Objects -@section Freeing Objects in an Obstack +@subsubsection Freeing Objects in an Obstack @cindex freeing (obstacks) To free an object allocated in an obstack, use the function @@ -265,7 +265,7 @@ frees the chunk (@pxref{Preparing for Obstacks}). Then other obstacks, or non-obstack allocation, can reuse the space of the chunk. @node Obstack Functions -@section Obstack Functions and Macros +@subsubsection Obstack Functions and Macros @cindex macros The interfaces for using obstacks may be defined either as functions or @@ -321,7 +321,7 @@ various language extensions in GNU C permit defining the macros so as to compute each argument only once. @node Growing Objects -@section Growing Objects +@subsubsection Growing Objects @cindex growing objects (in obstacks) @cindex changing the size of a block (obstacks) @@ -435,7 +435,7 @@ the current object smaller. Just don't try to shrink it beyond zero length---there's no telling what will happen if you do that. @node Extra Fast Growing -@section Extra Fast Growing Objects +@subsubsection Extra Fast Growing Objects @cindex efficiency and obstacks The usual functions for growing objects incur overhead for checking @@ -538,7 +538,7 @@ add_string (struct obstack *obstack, const char *ptr, int len) @end smallexample @node Status of an Obstack -@section Status of an Obstack +@subsubsection Status of an Obstack @cindex obstack status @cindex status of obstack @@ -580,12 +580,13 @@ obstack_next_free (@var{obstack-ptr}) - obstack_base (@var{obstack-ptr}) @end deftypefun @node Obstacks Data Alignment -@section Alignment of Data in Obstacks +@subsubsection Alignment of Data in Obstacks @cindex alignment (in obstacks) Each obstack has an @dfn{alignment boundary}; each object allocated in the obstack automatically starts on an address that is a multiple of the -specified boundary. By default, this boundary is 4 bytes. +specified boundary. By default, this boundary is aligned so that +the object can hold any type of data. To access an obstack's alignment boundary, use the macro @code{obstack_alignment_mask}, whose function prototype looks like @@ -597,7 +598,9 @@ this: The value is a bit mask; a bit that is 1 indicates that the corresponding bit in the address of an object should be 0. The mask value should be one less than a power of 2; the effect is that all object addresses are -multiples of that power of 2. The default value of the mask is 3, so that +multiples of that power of 2. The default value of the mask is a value +that allows aligned objects to hold any type of data: for example, if +its value is 3, any type of data can be stored at locations whose addresses are multiples of 4. A mask value of 0 means an object can start on any multiple of 1 (that is, no alignment is required). @@ -620,7 +623,7 @@ This will finish a zero-length object and then do proper alignment for the next object. @node Obstack Chunks -@section Obstack Chunks +@subsubsection Obstack Chunks @cindex efficiency of chunks @cindex chunks @@ -676,7 +679,7 @@ if (obstack_chunk_size (obstack_ptr) < @var{new-chunk-size}) @end smallexample @node Summary of Obstacks -@section Summary of Obstack Functions +@subsubsection Summary of Obstack Functions Here is a summary of all the functions associated with obstacks. Each takes the address of an obstack (@code{struct obstack *}) as its first diff --git a/libiberty/setenv.c b/libiberty/setenv.c index 921e968..96917d5 100644 --- a/libiberty/setenv.c +++ b/libiberty/setenv.c @@ -63,11 +63,8 @@ extern int errno; #define __environ environ #ifndef HAVE_ENVIRON_DECL -/* MinGW defines environ to call a function. */ -#ifndef environ extern char **environ; #endif -#endif #undef setenv #undef unsetenv diff --git a/libiberty/simple-object-mach-o.c b/libiberty/simple-object-mach-o.c index 6fde672..d1b676d 100644 --- a/libiberty/simple-object-mach-o.c +++ b/libiberty/simple-object-mach-o.c @@ -432,7 +432,7 @@ simple_object_mach_o_segment (simple_object_read *sobj, off_t offset, size_t index_size; unsigned int n_wrapped_sects; size_t wrapper_sect_size; - off_t wrapper_sect_offset; + off_t wrapper_sect_offset = 0; fetch_32 = (omr->is_big_endian ? simple_object_fetch_big_32 |