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Merge bitcoin-core/secp256k1#936: Fix gen_context/ASM build on ARM 

c8483520c9 Makefile.am: Don't pass a variable twice (Tim Ruffing)
2161f31785 Makefile.am: Honor config when building gen_context (Tim Ruffing)
99f47c20ec gen_context: Don't use external ASM because it complicates the build (Tim Ruffing)

Pull request description:

  Obsoletes #935.

ACKs for top commit:
  gmaxwell:
    ACK c8483520c9   looks good and works here. Undefign is kinda yuck, but it is already doing it and it's cleaner than the obvious alternatives.
  sipa:
    utACK c8483520c9. I verified that building still works on ARM64, but without asm of course.

Tree-SHA512: fc5500688b2aecc4238e21c32f65559bcbfd1e83d1ae4d2c8e15573e94613667731064d8b5f2b9e4209016d88118263802ff4b9a73c1f37c224ccf2a4a1d6536
This commit is contained in:
Pieter Wuille 2021-05-04 11:30:32 -07:00
parent 98e0358d29 c8483520c9
commit d0bd2693e3
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GPG Key ID: BF2978B068054311
2 changed files with 7 additions and 2 deletions
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4
Makefile.am
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@ -101,7 +101,7 @@ if VALGRIND_ENABLED
tests_CPPFLAGS += -DVALGRIND
noinst_PROGRAMS += valgrind_ctime_test
valgrind_ctime_test_SOURCES = src/valgrind_ctime_test.c
valgrind_ctime_test_LDADD = libsecp256k1.la $(SECP_LIBS) $(SECP_LIBS) $(COMMON_LIB)
valgrind_ctime_test_LDADD = libsecp256k1.la $(SECP_LIBS) $(COMMON_LIB)
endif
if !ENABLE_COVERAGE
tests_CPPFLAGS += -DVERIFY
@ -129,7 +129,7 @@ CPPFLAGS_FOR_BUILD +=-I$(top_srcdir) -I$(builddir)/src
gen_context_OBJECTS = gen_context.o
gen_context_BIN = gen_context$(BUILD_EXEEXT)
gen_%.o: src/gen_%.c src/libsecp256k1-config.h
$(CC_FOR_BUILD) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD) -c $< -o $@
$(CC_FOR_BUILD) $(DEFS) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD) -c $< -o $@
$(gen_context_BIN): $(gen_context_OBJECTS)
$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) $^ -o $@

5
src/gen_context.c
View File

@ -13,6 +13,11 @@
/* We can't require the precomputed tables when creating them. */
#undef USE_ECMULT_STATIC_PRECOMPUTATION
/* In principle we could use external ASM, but this yields only a minor speedup in
build time and it's very complicated. In particular when cross-compiling, we'd
need to build the external ASM for the build and the host machine. */
#undef USE_EXTERNAL_ASM
#include "include/secp256k1.h"
#include "assumptions.h"
#include "util.h"