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| author | Jörg Krause <joerg.krause@embedded.rocks> | 2017-03-12 13:16:38 +0100 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2017-03-12 14:09:57 +0100 |
| commit | 1d577f33df525677156f4dc929319fb21cb86ac8 (patch) | |
| tree | e00ab44d90c96f1454beaf2e534d278798d5e665 /package/boost/0004-Corrected-register-usage-in-x86-DCAS-asm-blocks.patch | |
| parent | 666b95b28eb103e9f36f36e8130f56252ab9af03 (diff) | |
| download | buildroot-1d577f33df525677156f4dc929319fb21cb86ac8.tar.gz buildroot-1d577f33df525677156f4dc929319fb21cb86ac8.zip | |
boost: bump to version 1.63.0
Remove getchar() patch which has been applied upstream.
Add recommanded post-release patch from upstream to fix 64-bit atomic
operations on 32-bit x86 with gcc versions older than 4.7.
Add a patch from upstream to fix FPE issue with uClibc-based toolchains.
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'package/boost/0004-Corrected-register-usage-in-x86-DCAS-asm-blocks.patch')
| -rw-r--r-- | package/boost/0004-Corrected-register-usage-in-x86-DCAS-asm-blocks.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/package/boost/0004-Corrected-register-usage-in-x86-DCAS-asm-blocks.patch b/package/boost/0004-Corrected-register-usage-in-x86-DCAS-asm-blocks.patch new file mode 100644 index 0000000000..a955c1e2d8 --- /dev/null +++ b/package/boost/0004-Corrected-register-usage-in-x86-DCAS-asm-blocks.patch @@ -0,0 +1,65 @@ +From a67cc1b055cf09f371e2eca544884634a1ccc886 Mon Sep 17 00:00:00 2001 +From: Andrey Semashev <andrey.semashev@gmail.com> +Date: Sun, 8 Jan 2017 18:09:12 +0300 +Subject: [PATCH] Corrected register usage in x86 DCAS asm blocks. + +In some of the asm blocks eax was modified as a result of cmpxchg8b but that +was not reflected in the register constraints. This could cause incorrect code +being generated. + +Fetch from: +https://github.com/boostorg/atomic/commit/a67cc1b055cf09f371e2eca544884634a1ccc886 + +[Adjust github patch to tarball release] +Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks> +--- + boost/atomic/detail/ops_gcc_x86_dcas.hpp | 14 ++++++++------ + 1 file changed, 8 insertions(+), 6 deletions(-) + +diff --git a/boost/atomic/detail/ops_gcc_x86_dcas.hpp b/boost/atomic/detail/ops_gcc_x86_dcas.hpp +index 2f51182..e356e8c 100644 +--- a/boost/atomic/detail/ops_gcc_x86_dcas.hpp ++++ b/boost/atomic/detail/ops_gcc_x86_dcas.hpp +@@ -73,6 +73,7 @@ struct gcc_dcas_x86 + { + #if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_IMPLIED_ZERO_DISPLACEMENTS) + #if defined(__PIC__) ++ uint32_t v_lo = (uint32_t)v; + uint32_t scratch; + __asm__ __volatile__ + ( +@@ -84,8 +85,8 @@ struct gcc_dcas_x86 + "1: lock; cmpxchg8b %[dest]\n\t" + "jne 1b\n\t" + "movl %[scratch], %%ebx\n\t" +- : [scratch] "=m" (scratch), [dest] "=o" (storage) +- : [value_lo] "a" ((uint32_t)v), "c" ((uint32_t)(v >> 32)) ++ : [scratch] "=m" (scratch), [dest] "=o" (storage), [value_lo] "+a" (v_lo) ++ : "c" ((uint32_t)(v >> 32)) + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "edx", "memory" + ); + #else // defined(__PIC__) +@@ -103,6 +104,7 @@ struct gcc_dcas_x86 + #endif // defined(__PIC__) + #else // !defined(BOOST_ATOMIC_DETAIL_NO_ASM_IMPLIED_ZERO_DISPLACEMENTS) + #if defined(__PIC__) ++ uint32_t v_lo = (uint32_t)v; + uint32_t scratch; + __asm__ __volatile__ + ( +@@ -115,11 +117,11 @@ struct gcc_dcas_x86 + "jne 1b\n\t" + "movl %[scratch], %%ebx\n\t" + #if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES) +- : [scratch] "=m,m" (scratch) +- : [value_lo] "a,a" ((uint32_t)v), "c,c" ((uint32_t)(v >> 32)), [dest] "D,S" (&storage) ++ : [scratch] "=m,m" (scratch), [value_lo] "+a,a" (v_lo) ++ : "c,c" ((uint32_t)(v >> 32)), [dest] "D,S" (&storage) + #else +- : [scratch] "=m" (scratch) +- : [value_lo] "a" ((uint32_t)v), "c" ((uint32_t)(v >> 32)), [dest] "D" (&storage) ++ : [scratch] "=m" (scratch), [value_lo] "+a" (v_lo) ++ : "c" ((uint32_t)(v >> 32)), [dest] "D" (&storage) + #endif + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "edx", "memory" + ); |

