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669cea8dce
This for clarity and to document the overflow checking better; I think no current Gnulib or glibc targets have SIZE_MAX <= INTMAX, so it shouldn’t change behavior on current targets. * lib/obstack.c: Include stdckdint.h, not limits.h. Remove no-longer needed ! (SIZE_MAX <= INT_MAX) check. (align_chunk_size_up): Rename from align_size_up, and change API to detect overflow directly. All callers changed. (align_chunk_size_up, _obstack_newchunk): Use ckd_add instead of checking overflow by hand in a way that assumed INT_MAX < SIZE_MAX. (call_chunkfun, _obstack_begin_worker, _obstack_newchunk): Accept and use _OBSTACK_CHUNK_SIZE_T not size_t. This affects only glibc, since the two types are the same in Gnulib. All callers changed. * modules/obstack (Depends-on): Add stdckdint-h.
61 lines
1.8 KiB
Plaintext
61 lines
1.8 KiB
Plaintext
Description:
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Memory allocation, optimized for stack-like allocation patterns.
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Files:
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lib/obstack.in.h
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lib/obstack.c
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m4/obstack.m4
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Depends-on:
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gen-header
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alignasof [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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libc-config [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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flexmember [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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gettext-h [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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gnulib-i18n [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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exitfail [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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stdckdint-h [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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stddef-h [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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stdint-h [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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stdlib-h [test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1]
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configure.ac:
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gl_FUNC_OBSTACK
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gl_CONDITIONAL_HEADER([obstack.h])
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gl_CONDITIONAL([GL_COND_OBJ_OBSTACK],
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[test $HAVE_OBSTACK = 0 || test $REPLACE_OBSTACK = 1])
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AC_PROG_MKDIR_P
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Makefile.am:
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BUILT_SOURCES += $(OBSTACK_H)
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# We need the following in order to create <obstack.h> when the system
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# doesn't have one that works with any size object.
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if GL_GENERATE_OBSTACK_H
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obstack.h: obstack.in.h $(top_builddir)/config.status
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@NMD@ $(AM_V_GEN)$(MKDIR_P) '%reldir%'
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$(gl_V_at)$(SED_HEADER_STDOUT) \
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-e 's/defined __GL_GNULIB_HEADER/1/g' \
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-e 's|defined __GL_REPLACE_OBSTACK__|$(REPLACE_OBSTACK)|g' \
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-e 's|defined __GL_SMALL_PTRDIFF_T__|$(SMALL_PTRDIFF_T)|g' \
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$(srcdir)/obstack.in.h > $@-t
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$(AM_V_at)mv $@-t $@
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else
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obstack.h: $(top_builddir)/config.status
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rm -f $@
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endif
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MOSTLYCLEANFILES += obstack.h obstack.h-t
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if GL_COND_OBJ_OBSTACK
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lib_SOURCES += obstack.c
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endif
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Include:
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"obstack.h"
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License:
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LGPLv2+
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Maintainer:
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all, glibc
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