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arm: use auxv to figure out armcap.c instead of using signals (#1006474)

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This commit is contained in:
Kyle McMartin 2013-09-11 09:52:25 -04:00
parent 850ca72b9a
commit f6aa3c2ddd
2 changed files with 100 additions and 1 deletions
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93
openssl-1.0.1e-arm-use-elf-auxv-caps.patch Normal file
View File

@ -0,0 +1,93 @@
diff --git a/crypto/armcap.c b/crypto/armcap.c
index 5258d2f..efb4009 100644
--- a/crypto/armcap.c
+++ b/crypto/armcap.c
@@ -9,11 +9,6 @@
unsigned int OPENSSL_armcap_P;
-static sigset_t all_masked;
-
-static sigjmp_buf ill_jmp;
-static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
-
/*
* Following subroutines could have been inlined, but it's not all
* ARM compilers support inline assembler...
@@ -29,24 +24,26 @@ unsigned int OPENSSL_rdtsc(void)
return 0;
}
-#if defined(__GNUC__) && __GNUC__>=2
-void OPENSSL_cpuid_setup(void) __attribute__((constructor));
-#endif
-void OPENSSL_cpuid_setup(void)
+#if defined(__GLIBC__) && __GLIBC__>=2 && __GLIBC_MINOR__>=16
+#include <sys/auxv.h>
+
+void OPENSSL_cpuid_find(void)
+ {
+ unsigned long hwcap = getauxval(AT_HWCAP);
+ char *plat = (char *)getauxval(AT_PLATFORM);
+
+ OPENSSL_armcap_P |= hwcap & HWCAP_ARM_NEON ? ARMV7_NEON : 0;
+ OPENSSL_armcap_P |= plat ? (plat[1] == '7' ? ARMV7_TICK : 0) : 0;
+ }
+#else
+static sigset_t all_masked;
+static sigjmp_buf ill_jmp;
+static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
+
+void OPENSSL_cpuid_find(void)
{
- char *e;
struct sigaction ill_oact,ill_act;
sigset_t oset;
- static int trigger=0;
-
- if (trigger) return;
- trigger=1;
-
- if ((e=getenv("OPENSSL_armcap")))
- {
- OPENSSL_armcap_P=strtoul(e,NULL,0);
- return;
- }
sigfillset(&all_masked);
sigdelset(&all_masked,SIGILL);
@@ -55,8 +52,6 @@ void OPENSSL_cpuid_setup(void)
sigdelset(&all_masked,SIGBUS);
sigdelset(&all_masked,SIGSEGV);
- OPENSSL_armcap_P = 0;
-
memset(&ill_act,0,sizeof(ill_act));
ill_act.sa_handler = ill_handler;
ill_act.sa_mask = all_masked;
@@ -78,3 +73,25 @@ void OPENSSL_cpuid_setup(void)
sigaction (SIGILL,&ill_oact,NULL);
sigprocmask(SIG_SETMASK,&oset,NULL);
}
+#endif
+
+#if defined(__GNUC__) && __GNUC__>=2
+void OPENSSL_cpuid_setup(void) __attribute__((constructor));
+#endif
+void OPENSSL_cpuid_setup(void)
+ {
+ char *e;
+ static int trigger=0;
+
+ if (trigger) return;
+ trigger=1;
+
+ if ((e=getenv("OPENSSL_armcap")))
+ {
+ OPENSSL_armcap_P=strtoul(e,NULL,0);
+ return;
+ }
+
+ OPENSSL_armcap_P = 0;
+ OPENSSL_cpuid_find();
+ }

8
openssl.spec
View File

@ -21,7 +21,7 @@
Summary: Utilities from the general purpose cryptography library with TLS implementation
Name: openssl
Version: 1.0.1e
Release: 19%{?dist}
Release: 20%{?dist}
Epoch: 1
# We have to remove certain patented algorithms from the openssl source
# tarball with the hobble-openssl script which is included below.
@ -76,6 +76,7 @@ Patch81: openssl-1.0.1-beta2-padlock64.patch
Patch82: openssl-1.0.1e-backports.patch
Patch83: openssl-1.0.1e-bad-mac.patch
Patch84: openssl-1.0.1e-trusted-first.patch
Patch85: openssl-1.0.1e-arm-use-elf-auxv-caps.patch
License: OpenSSL
Group: System Environment/Libraries
@ -193,6 +194,7 @@ OpenSSL FIPS module.
%patch72 -p1 -b .fips-ctor
%patch83 -p1 -b .bad-mac
%patch84 -p1 -b .trusted-first
%patch85 -p1 -b .armcap
sed -i 's/SHLIB_VERSION_NUMBER "1.0.0"/SHLIB_VERSION_NUMBER "%{version}"/' crypto/opensslv.h
@ -468,6 +470,10 @@ rm -rf $RPM_BUILD_ROOT/%{_libdir}/fipscanister.*
prelink -u %{_libdir}/libcrypto.so.%{version} %{_libdir}/libssl.so.%{version} 2>/dev/null || :
%changelog
* Tue Sep 10 2013 Kyle McMartin <kyle@redhat.com> 1.0.1e-20
- [arm] use elf auxv to figure out armcap.c instead of playing silly
games with SIGILL handlers. (#1006474)
* Mon Sep 2 2013 Tomas Mraz <tmraz@redhat.com> 1.0.1e-19
- use version-release in .hmac suffix to avoid overwrite
during upgrade