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| author | Dennis Wölfing <denniswoelfing@gmx.de> | 2017-05-30 18:26:19 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-05-30 18:27:57 -0300 |
| commit | 2e0bbbfbf95fc9e22692e93658a6fbdd2d4554da (patch) | |
| tree | 662856c19816b2b441dbfda3e15ca771eb303e5f /malloc/Makefile | |
| parent | 4f26ef1b67287d1f2c32865f7d79c13abda81915 (diff) | |
| download | glibc-2e0bbbfbf95fc9e22692e93658a6fbdd2d4554da.tar.gz glibc-2e0bbbfbf95fc9e22692e93658a6fbdd2d4554da.tar.xz glibc-2e0bbbfbf95fc9e22692e93658a6fbdd2d4554da.zip | |
Add reallocarray function
The reallocarray function is an extension from OpenBSD. It is an
integer-overflow-safe replacement for realloc(p, X*Y) and
malloc(X*Y) (realloc(NULL, X*Y)). It can therefore help in preventing
certain security issues in code.
This is an updated version of a patch originally submitted by Rüdiger
Sonderfeld in May 2014 [1].
Checked on i686-linux-gnu and x86_64-linux-gnu.
[1] <https://sourceware.org/ml/libc-alpha/2014-05/msg00481.html>.
2017-05-30 Dennis Wölfing <denniswoelfing@gmx.de>
Rüdiger Sonderfeld <ruediger@c-plusplus.de>
* include/stdlib.h (__libc_reallocarray): New declaration.
* malloc/Makefile (routines): Add reallocarray.
(tests): Add tst-reallocarray.c.
* malloc/Versions: Add reallocarray and __libc_reallocarray.
* malloc/malloc-internal.h (check_mul_overflow_size_t): New inline
function.
* malloc/malloc.h (reallocarray): New declaration.
* stdlib/stdlib.h (reallocarray): Likewise.
* malloc/reallocarray.c: New file.
* malloc/tst-reallocarray.c: New test file.
* manual/memory.texi: Document reallocarray.
* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add reallocarray.
* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/tilepro/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
Diffstat (limited to 'malloc/Makefile')
| -rw-r--r-- | malloc/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/malloc/Makefile b/malloc/Makefile index d0f23f7bf3..b7d4c63920 100644 --- a/malloc/Makefile +++ b/malloc/Makefile @@ -26,7 +26,7 @@ dist-headers := malloc.h headers := $(dist-headers) obstack.h mcheck.h tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \ tst-mcheck tst-mallocfork tst-trim1 \ - tst-malloc-usable tst-realloc tst-posix_memalign \ + tst-malloc-usable tst-realloc tst-reallocarray tst-posix_memalign \ tst-pvalloc tst-memalign tst-mallopt \ tst-malloc-backtrace tst-malloc-thread-exit \ tst-malloc-thread-fail tst-malloc-fork-deadlock \ @@ -49,7 +49,7 @@ endif tests += $(tests-static) test-srcs = tst-mtrace -routines = malloc morecore mcheck mtrace obstack \ +routines = malloc morecore mcheck mtrace obstack reallocarray \ scratch_buffer_grow scratch_buffer_grow_preserve \ scratch_buffer_set_array_size |