From: Yann E. MORIN Date: Tue, 2 Mar 2021 21:51:47 +0000 (+0100) Subject: package/libopenssl: fix build on riscv32 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2bb26c1a1d24cdbb946bc2a77680dbc8f9c0d537;p=buildroot.git package/libopenssl: fix build on riscv32 riscv32 is (surprise!) a 32-bit architecture. But it has been Y2038-safe from its inception. As such, there are no legacy binaries that may use the 32-bit time syscalls, and thus they are not available on riscv32. Code that directly calls to the syscalls without using the C libraries wrappers thus need to handle this case by themselves. Backport a patch from the upstream openssl development branch that will eventually be openssl 3.0, but has not yet been backported to the 1.1.1 stable branch. Fixes: http://autobuild.buildroot.org/results/eb9/eb9a64d4ffae8569b5225083f282cf87ffa7c681/ ... http://autobuild.buildroot.org/results/07e/07e413b24ba8adc9558c80267ce16dda339bf032/ Signed-off-by: Yann E. MORIN Cc: Matt Weber Cc: Mark Corbin Signed-off-by: Arnout Vandecappelle (Essensium/Mind) --- diff --git a/package/libopenssl/0006-Add-support-for-io_pgetevents_time64-syscall.patch b/package/libopenssl/0006-Add-support-for-io_pgetevents_time64-syscall.patch new file mode 100644 index 0000000000..ab552de91a --- /dev/null +++ b/package/libopenssl/0006-Add-support-for-io_pgetevents_time64-syscall.patch @@ -0,0 +1,63 @@ +From 5b5e2985f355c8e99c196d9ce5d02c15bebadfbc Mon Sep 17 00:00:00 2001 +From: Alistair Francis +Date: Thu, 29 Aug 2019 13:56:21 -0700 +Subject: [PATCH] Add support for io_pgetevents_time64 syscall + +32-bit architectures that are y2038 safe don't include syscalls that use +32-bit time_t. Instead these architectures have suffixed syscalls that +always use a 64-bit time_t. In the case of the io_getevents syscall the +syscall has been replaced with the io_pgetevents_time64 syscall instead. + +This patch changes the io_getevents() function to use the correct +syscall based on the avaliable syscalls and the time_t size. We will +only use the new 64-bit time_t syscall if the architecture is using a +64-bit time_t. This is to avoid having to deal with 32/64-bit +conversions and relying on a 64-bit timespec struct on 32-bit time_t +platforms. As of Linux 5.3 there are no 32-bit time_t architectures +without __NR_io_getevents. In the future if a 32-bit time_t architecture +wants to use the 64-bit syscalls we can handle the conversion. + +This fixes build failures on 32-bit RISC-V. + +Signed-off-by: Alistair Francis + +Reviewed-by: Richard Levitte +Reviewed-by: Paul Dale +(Merged from https://github.com/openssl/openssl/pull/9819) +[yann.morin.1998@free.fr: backport from upstream 3.0 branch] +Signed-off-by: Yann E. MORIN +--- + engines/e_afalg.c | 16 ++++++++++++++++ + 1 file changed, 16 insertions(+) + +diff --git a/engines/e_afalg.c b/engines/e_afalg.c +index dacbe358cb..99516cb1bb 100644 +--- a/engines/e_afalg.c ++++ b/engines/e_afalg.c +@@ -125,7 +125,23 @@ static ossl_inline int io_getevents(aio_context_t ctx, long min, long max, + struct io_event *events, + struct timespec *timeout) + { ++#if defined(__NR_io_getevents) + return syscall(__NR_io_getevents, ctx, min, max, events, timeout); ++#elif defined(__NR_io_pgetevents_time64) ++ /* Let's only support the 64 suffix syscalls for 64-bit time_t. ++ * This simplifies the code for us as we don't need to use a 64-bit ++ * version of timespec with a 32-bit time_t and handle converting ++ * between 64-bit and 32-bit times and check for overflows. ++ */ ++ if (sizeof(timeout->tv_sec) == 8) ++ return syscall(__NR_io_pgetevents_time64, ctx, min, max, events, timeout, NULL); ++ else { ++ errno = ENOSYS; ++ return -1; ++ } ++#else ++# error "We require either the io_getevents syscall or __NR_io_pgetevents_time64." ++#endif + } + + static void afalg_waitfd_cleanup(ASYNC_WAIT_CTX *ctx, const void *key, +-- +2.25.1 +