diff options
Diffstat (limited to 'packages/glibc/2.16.0/102-fix-signed-shift-overlow.patch')
-rw-r--r-- | packages/glibc/2.16.0/102-fix-signed-shift-overlow.patch | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/packages/glibc/2.16.0/102-fix-signed-shift-overlow.patch b/packages/glibc/2.16.0/102-fix-signed-shift-overlow.patch deleted file mode 100644 index ef49f831..00000000 --- a/packages/glibc/2.16.0/102-fix-signed-shift-overlow.patch +++ /dev/null @@ -1,98 +0,0 @@ -commit 5542236837c5c41435f8282ec92799f480c36f18 -Author: Paul Eggert <eggert@cs.ucla.edu> -Date: Tue Jul 21 22:50:29 2015 -0700 - - Port the 0x7efe...feff pattern to GCC 6. - - See Steve Ellcey's bug report in: - https://sourceware.org/ml/libc-alpha/2015-07/msg00673.html - * string/memrchr.c (MEMRCHR): - * string/rawmemchr.c (RAWMEMCHR): - * string/strchr.c (strchr): - * string/strchrnul.c (STRCHRNUL): - Rewrite code to avoid issues with signed shift overflow. - -diff --git a/string/memrchr.c b/string/memrchr.c -index 0c8fd84..86cd5b9 100644 ---- a/string/memrchr.c -+++ b/string/memrchr.c -@@ -96,15 +96,8 @@ MEMRCHR - - The 1-bits make sure that carries propagate to the next 0-bit. - The 0-bits provide holes for carries to fall into. */ -- -- if (sizeof (longword) != 4 && sizeof (longword) != 8) -- abort (); -- --#if LONG_MAX <= LONG_MAX_32_BITS -- magic_bits = 0x7efefeff; --#else -- magic_bits = ((unsigned long int) 0x7efefefe << 32) | 0xfefefeff; --#endif -+ magic_bits = -1; -+ magic_bits = magic_bits / 0xff * 0xfe << 1 >> 1 | 1; - - /* Set up a longword, each of whose bytes is C. */ - charmask = c | (c << 8); -diff --git a/string/rawmemchr.c b/string/rawmemchr.c -index 05b22be..228ca9d 100644 ---- a/string/rawmemchr.c -+++ b/string/rawmemchr.c -@@ -86,15 +86,8 @@ RAWMEMCHR (s, c_in) - - The 1-bits make sure that carries propagate to the next 0-bit. - The 0-bits provide holes for carries to fall into. */ -- -- if (sizeof (longword) != 4 && sizeof (longword) != 8) -- abort (); -- --#if LONG_MAX <= LONG_MAX_32_BITS -- magic_bits = 0x7efefeff; --#else -- magic_bits = ((unsigned long int) 0x7efefefe << 32) | 0xfefefeff; --#endif -+ magic_bits = -1; -+ magic_bits = magic_bits / 0xff * 0xfe << 1 >> 1 | 1; - - /* Set up a longword, each of whose bytes is C. */ - charmask = c | (c << 8); -diff --git a/string/strchr.c b/string/strchr.c -index 5f90075..f13b2b3 100644 ---- a/string/strchr.c -+++ b/string/strchr.c -@@ -60,13 +60,8 @@ strchr (const char *s, int c_in) - - The 1-bits make sure that carries propagate to the next 0-bit. - The 0-bits provide holes for carries to fall into. */ -- switch (sizeof (longword)) -- { -- case 4: magic_bits = 0x7efefeffL; break; -- case 8: magic_bits = ((0x7efefefeL << 16) << 16) | 0xfefefeffL; break; -- default: -- abort (); -- } -+ magic_bits = -1; -+ magic_bits = magic_bits / 0xff * 0xfe << 1 >> 1 | 1; - - /* Set up a longword, each of whose bytes is C. */ - charmask = c | (c << 8); -diff --git a/string/strchrnul.c b/string/strchrnul.c -index 2678f1d..daf0b3f 100644 ---- a/string/strchrnul.c -+++ b/string/strchrnul.c -@@ -66,13 +66,8 @@ STRCHRNUL (s, c_in) - - The 1-bits make sure that carries propagate to the next 0-bit. - The 0-bits provide holes for carries to fall into. */ -- switch (sizeof (longword)) -- { -- case 4: magic_bits = 0x7efefeffL; break; -- case 8: magic_bits = ((0x7efefefeL << 16) << 16) | 0xfefefeffL; break; -- default: -- abort (); -- } -+ magic_bits = -1; -+ magic_bits = magic_bits / 0xff * 0xfe << 1 >> 1 | 1; - - /* Set up a longword, each of whose bytes is C. */ - charmask = c | (c << 8); |