Openssl aarch64 静态库使用遇到libcrypto.a(xxxx-armv8.o)……问题解决方案记录

使用方式

在CPU构架为arrch64(arm64)的系统下静态链接libcrypto.a 与libssl.a

错误

……Linux/aarch64/libcrypto.a(sha1-armv8.o): relocation R_AARCH64_PREL64 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
……Linux/aarch64/libcrypto.a(sha1-armv8.o): in function `sha1_block_armv8':
(.text+0x1240): dangerous relocation: 不支持的重定位
……Linux/aarch64/libcrypto.a(chacha-armv8.o): relocation R_AARCH64_PREL64 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
……Linux/aarch64/libcrypto.a(chacha-armv8.o):(.text+0x20): dangerous relocation: 不支持的重定位
……Linux/aarch64/libcrypto.a(poly1305-armv8.o): relocation R_AARCH64_ADR_PREL_LO21 against symbol `poly1305_blocks' which may bind externally can not be used when making a shared object; recompile with -fPIC
……Linux/aarch64/libcrypto.a(poly1305-armv8.o): in function `poly1305_init':
(.text+0x40): dangerous relocation: 不支持的重定位
……Linux/aarch64/libcrypto.a(poly1305-armv8.o): relocation R_AARCH64_ADR_PREL_LO21 against symbol `poly1305_emit' which may bind externally can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: (.text+0x48): dangerous relocation: 不支持的重定位
……Linux/aarch64/libcrypto.a(poly1305-armv8.o): relocation R_AARCH64_PREL64 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
……Linux/aarch64/libcrypto.a(poly1305-armv8.o): in function `poly1305_emit_neon':
(.text+0x9a0): dangerous relocation: 不支持的重定位
……Linux/aarch64/libcrypto.a(sha256-armv8.o): relocation R_AARCH64_PREL64 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
……Linux/aarch64/libcrypto.a(sha256-armv8.o): in function `sha256_block_data_order':
(.text+0xf88): dangerous relocation: 不支持的重定位
……Linux/aarch64/libcrypto.a(sha512-armv8.o): relocation R_AARCH64_PREL64 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
……Linux/aarch64/libcrypto.a(sha512-armv8.o): in function `sha512_block_data_order':
(.text+0x1108): dangerous relocation: 不支持的重定位
collect2: error: ld returned 1 exit status
make[2]: *** [src/CMakeFiles/NetSealClientCNG.dir/build.make:474：bin/lib/libNetSealClientCNG.so] 错误 1
make[1]: *** [CMakeFiles/Makefile2:91：src/CMakeFiles/NetSealClientCNG.dir/all] 错误 2
make: *** [Makefile:84：all] 错误 2

解决方案

方法来源：

https://github.com/openssl/openssl/compare/OpenSSL_1_1_1-stable%E2%80%A6Romain-Geissler-1A:OpenSSL_1_1_1-stable

方法：（+ 为加入 - 为删除）

openssl源码 crypto/chacha/asm/chacha-armv8.pl

125	.text
126	
127	.extern	OPENSSL_armcap_P
+ 	.hidden	OPENSSL_armcap_P
128	.align	5
129	.Lsigma:

openssl源码 crypto/poly1305/asm/poly1305-armv8.pl

58	// forward "declarations" are required for Apple
59	.extern	OPENSSL_armcap_P
+	.hidden	OPENSSL_armcap_P
+	.globl	poly1305_init
+	.hidden	poly1305_init
60	.globl	poly1305_blocks
+	.hidden	poly1305_blocks
61.globl	poly1305_emit
+	.hidden	poly1305_emit
62	
-	.globl	poly1305_init
64	.type	poly1305_init,%function
64	.align	5
poly1305_init:

openssl源码 crypto/sha/asm/sha1-armv8.pl

176	.text
177	
178	.extern	OPENSSL_armcap_P
+	.hidden OPENSSL_armcap_P
179	.globl	sha1_block_data_order
180	.type	sha1_block_data_order,%function
181	.align	6

330	#endif
331	.asciz	"SHA1 block transform for ARMv8, CRYPTOGAMS by "
332	.align	2
-	.comm	OPENSSL_armcap_P,4,4
333	___
334	}}}

openssl源码 crypto/sha/asm/sha512-armv8.pl

193	.text
194	
195	.extern	OPENSSL_armcap_P
+	.hidden	OPENSSL_armcap_P
197	.globl	$func
198	.type	$func,%function
199	.align	6

841	___
842	}
843	
-	$code.=<<___;
-	#ifndef	__KERNEL__
-	.comm	OPENSSL_armcap_P,4,4
-	#endif
-	___
-	
849	{   my  %opcode = (