From: Andreas Schwab <schwab@suse.de>
To: Andrew Senkevich <andrew.n.senkevich@gmail.com>
Cc: "H.J. Lu" <hjl.tools@gmail.com>,
Florian Weimer <fweimer@redhat.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>, nd <nd@arm.com>,
libc-alpha <libc-alpha@sourceware.org>,
Max Horn <max@quendi.de>,
thomas@grindinggear.com
Subject: Re: [PATCH] Fix i386 memmove issue [BZ #22644]
Date: Tue, 20 Mar 2018 08:58:00 -0000 [thread overview]
Message-ID: <mvmo9jji0n3.fsf@suse.de> (raw)
In-Reply-To: <CAMXFM3ujXmdgVyew8mY7h=tMhEH+qdALnke6iavecPnX-rVz_Q@mail.gmail.com> (Andrew Senkevich's message of "Mon, 19 Mar 2018 21:32:27 +0100")
On Mär 19 2018, Andrew Senkevich <andrew.n.senkevich@gmail.com> wrote:
> diff --git a/string/test-memmove.c b/string/test-memmove.c
> index edc7a4c..9f1437d 100644
> --- a/string/test-memmove.c
> +++ b/string/test-memmove.c
> @@ -24,6 +24,7 @@
> # define TEST_NAME "memmove"
> #endif
> #include "test-string.h"
> +#include <support/test-driver.h>
>
> char *simple_memmove (char *, const char *, size_t);
>
> @@ -245,6 +246,60 @@ do_random_tests (void)
> }
> }
>
> +static void
> +do_test2 (void)
> +{
> + size_t size = 0x20000000;
> + uint32_t * large_buf;
> +
> + large_buf = mmap ((void*)0x70000000, size, PROT_READ | PROT_WRITE,
> + MAP_PRIVATE | MAP_ANON, -1, 0);
Style: line up indentation with paren.
> +
> + if (large_buf == MAP_FAILED)
> + error (EXIT_UNSUPPORTED, errno, "Large mmap failed");
> +
> + if ((uintptr_t)large_buf > 0x80000000 - 128
> + || 0x80000000 - (uintptr_t)large_buf > 0x20000000)
Style: space after cast.
> + {
> + error (0, 0,"Large mmap allocated improperly");
Style: space after comma.
> + ret = EXIT_UNSUPPORTED;
> + munmap((void *)large_buf, size);
Style: space before paren and after cast.
> + return;
> + }
> +
> + size_t bytes_move = 0x80000000 - (uintptr_t)large_buf;
Style: space after cast.
> + size_t arr_size = bytes_move / sizeof(uint32_t);
Style: space before paren.
> + size_t i;
> +
> + FOR_EACH_IMPL (impl, 0)
> + {
> + for (i = 0; i < arr_size; i++)
> + large_buf[i] = i;
> +
> + uint32_t * dst = &large_buf[33];
> +
> +#ifdef TEST_BCOPY
> + CALL (impl, (char *)large_buf, (char *)dst, bytes_move);
> +#else
> + CALL (impl, (char *)dst, (char *)large_buf, bytes_move);
> +#endif
Styles: space after cast.
> +
> + for (i = 0; i < arr_size; i++)
> + {
> + if (dst[i] != i)
> + {
Style: wrong indentation.
> + error (0, 0,
> + "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%d\"",
> + impl->name, dst, large_buf, i);
Style: line up indentation with paren.
> + ret = 1;
> + break;
> + }
> + }
> + }
> +
> + munmap((void *)large_buf, size);
Style: space before paren and after cast.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
next prev parent reply other threads:[~2018-03-20 8:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-19 10:13 Andrew Senkevich
2018-02-19 10:31 ` Andreas Schwab
2018-03-14 14:43 ` Andrew Senkevich
2018-03-14 14:59 ` H.J. Lu
2018-03-19 12:46 ` Andrew Senkevich
2018-03-19 12:55 ` H.J. Lu
2018-03-19 13:11 ` Andreas Schwab
2018-03-19 13:17 ` Florian Weimer
2018-03-19 14:01 ` Andrew Senkevich
2018-03-19 14:25 ` Szabolcs Nagy
2018-03-19 15:33 ` Florian Weimer
2018-03-19 17:52 ` Andrew Senkevich
2018-03-19 17:57 ` H.J. Lu
2018-03-19 19:30 ` Andrew Senkevich
2018-03-19 19:38 ` H.J. Lu
2018-03-19 20:33 ` Andrew Senkevich
2018-03-19 20:50 ` H.J. Lu
2018-03-20 8:58 ` Andreas Schwab [this message]
2018-03-23 17:15 ` Andrew Senkevich
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