diff options
Diffstat (limited to 'a85c798f91bfef796116f3ebf5e5e7e479c8683f.patch')
| -rw-r--r-- | a85c798f91bfef796116f3ebf5e5e7e479c8683f.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/a85c798f91bfef796116f3ebf5e5e7e479c8683f.patch b/a85c798f91bfef796116f3ebf5e5e7e479c8683f.patch new file mode 100644 index 0000000..4956dba --- /dev/null +++ b/a85c798f91bfef796116f3ebf5e5e7e479c8683f.patch @@ -0,0 +1,36 @@ +From a85c798f91bfef796116f3ebf5e5e7e479c8683f Mon Sep 17 00:00:00 2001 +From: Magnus Edenhill <magnus@edenhill.se> +Date: Thu, 29 Jun 2017 10:35:23 +0200 +Subject: [PATCH] configure crc32 for x32: try to avoid dead-code removal + +--- + configure.librdkafka | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/configure.librdkafka b/configure.librdkafka +index 903b0276..923dd48f 100644 +--- a/configure.librdkafka ++++ b/configure.librdkafka +@@ -86,11 +86,13 @@ function checks { + mkl_compile_check crc32chw WITH_CRC32C_HW disable CC "" \ + " + #include <inttypes.h> ++#include <stdio.h> + #define LONGx1 \"8192\" + #define LONGx2 \"16384\" + void foo (void) { + const char *n = \"abcdefghijklmnopqrstuvwxyz0123456789\"; + uint64_t c0 = 0, c1 = 1, c2 = 2; ++ uint64_t s; + uint32_t eax = 1, ecx; + __asm__(\"cpuid\" + : \"=c\"(ecx) +@@ -104,6 +106,8 @@ void foo (void) { + \"crc32q\t\" LONGx2 \"(%3), %2\" + : \"=r\"(c0), \"=r\"(c1), \"=r\"(c2) + : \"r\"(n), \"0\"(c0), \"1\"(c1), \"2\"(c2)); ++ s = c0 + c1 + c2; ++ printf(\"avoiding unused code removal by printing %d, %d, %d\n\", (int)s, (int)eax, (int)ecx); + } + " + |