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Merge remote-tracking branch 'public/pr/1778' into development

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Simon Butcher 2018-07-19 16:10:38 +01:00
commit a72098b4d6
2 changed files with 12 additions and 3 deletions
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2
ChangeLog
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@ -29,6 +29,8 @@ Bugfix
by Brendan Shanks. Part of a fix for #992.
* Fix compilation error when MBEDTLS_ARC4_C is disabled and
MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
* Fix the inline assembly for the MPI multiply helper function for i386 and
i386 with SSE2. Found by László Langó. Fixes #1550
Changes
* Change the shebang line in Perl scripts to look up perl in the PATH.

13
include/mbedtls/bn_mul.h
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@ -49,7 +49,14 @@
/* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */
#if defined(__GNUC__) && \
( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
#if defined(__i386__)
/*
* Disable use of the i386 assembly code below if option -O0, to disable all
* compiler optimisations, is passed, detected with __OPTIMIZE__
* This is done as the number of registers used in the assembly code doesn't
* work with the -O0 option.
*/
#if defined(__i386__) && !defined(__OPTIMIZE__)
#define MULADDC_INIT \
asm( \
@ -142,7 +149,7 @@
"movl %%esi, %3 \n\t" \
: "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
: "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
: "eax", "ecx", "edx", "esi", "edi" \
: "eax", "ebx", "ecx", "edx", "esi", "edi" \
);
#else
@ -154,7 +161,7 @@
"movl %%esi, %3 \n\t" \
: "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
: "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
: "eax", "ecx", "edx", "esi", "edi" \
: "eax", "ebx", "ecx", "edx", "esi", "edi" \
);
#endif /* SSE2 */
#endif /* i386 */