summaryrefslogtreecommitdiffstats
path: root/meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch
diff options
context:
space:
mode:
authorScott Murray <scott.murray@konsulko.com>2024-06-10 16:53:03 -0400
committerJan-Simon Moeller <jsmoeller@linuxfoundation.org>2024-06-11 12:25:35 +0000
commit14b2e48b36010e885d400001af7fbc16c8769fd2 (patch)
tree071f0848ad9afb300fbe74431c49258eff4fc279 /meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch
parent1965129cdcddd27bc574c12aff2392b55ed39d35 (diff)
meta-agl-bsp: fix python3-grpcio bbappend location
The dynamically applied python3-grpcio bbappend should be targeted against meta-python instead of meta-oe, move it to make that so. In practice, this was only breaking builds when aglsetup.sh was run without specifying 'agl-demo'; I discovered it during next branch testing. Bug-AGL: SPEC-5171 Change-Id: I0a14d6617ea0028a4f3fabfcfa3d63b55c5ab5eb Signed-off-by: Scott Murray <scott.murray@konsulko.com> Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/29985 Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org> Tested-by: Jenkins Job builder account ci-image-build: Jenkins Job builder account ci-image-boot-test: Jenkins Job builder account
Diffstat (limited to 'meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch')
-rw-r--r--meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch82
1 files changed, 82 insertions, 0 deletions
diff --git a/meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch b/meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch
new file mode 100644
index 000000000..82f15f88c
--- /dev/null
+++ b/meta-agl-bsp/meta-python/recipes-devtools/python/python3-grpcio/0001-PR-1644-unscaledcycleclock-remove-RISC-V-support.patch
@@ -0,0 +1,82 @@
+From 7335a36d0b5c1c597566f9aa3f458a5b6817c3b4 Mon Sep 17 00:00:00 2001
+From: aurel32 <aurelien@aurel32.net>
+Date: Fri, 22 Mar 2024 14:21:13 -0700
+Subject: [PATCH] PR #1644: unscaledcycleclock: remove RISC-V support
+
+Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1644
+
+Starting with Linux 6.6 [1], RDCYCLE is a privileged instruction on RISC-V and can't be used directly from userland. There is a sysctl option to change that as a transition period, but it will eventually disappear.
+
+The RDTIME instruction is another less accurate alternative, however its frequency varies from board to board, and there is currently now way to get its frequency from userland [2].
+
+Therefore this patch just removes the code for unscaledcycleclock on RISC-V. Without processor specific implementation, abseil relies on std::chrono::steady_clock::now().time_since_epoch() which is basically a wrapper around clock_gettime (CLOCK_MONOTONIC), which in turns use __vdso_clock_gettime(). On RISC-V this VDSO is just a wrapper around RDTIME correctly scaled to use nanoseconds units.
+
+This fixes the testsuite on riscv64, tested on a VisionFive 2 board.
+
+[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc4c07c89aada16229084eeb93895c95b7eabaa3
+[2] https://github.com/abseil/abseil-cpp/pull/1631
+Merge 43356a2548cfde76e164d446cb69004b488c6a71 into 76f8011beabdaee872b5fde7546e02407b220cb1
+
+Merging this change closes #1644
+
+COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1644 from aurel32:rv64-no-unscaledcycleclock 43356a2548cfde76e164d446cb69004b488c6a71
+PiperOrigin-RevId: 618286262
+Change-Id: Ie4120a727e7d0bb185df6e06ea145c780ebe6652
+
+Upstream-Status: Backport [https://github.com/abseil/abseil-cpp/commit/7335a36d]
+[Adapted to apply on top of meta-oe's patch stack]
+Signed-off-by: Scott Murray <scott.murray@konsulko.com>
+---
+ .../absl/base/internal/unscaledcycleclock.cc | 12 ------------
+ .../absl/base/internal/unscaledcycleclock_config.h | 5 ++---
+ 2 files changed, 2 insertions(+), 15 deletions(-)
+
+diff --git a/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc b/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
+index f11fecb..103b4f6 100644
+--- a/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
++++ b/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
+@@ -121,18 +121,6 @@ double UnscaledCycleClock::Frequency() {
+ return aarch64_timer_frequency;
+ }
+
+-#elif defined(__riscv)
+-
+-int64_t UnscaledCycleClock::Now() {
+- int64_t virtual_timer_value;
+- asm volatile("rdcycle %0" : "=r"(virtual_timer_value));
+- return virtual_timer_value;
+-}
+-
+-double UnscaledCycleClock::Frequency() {
+- return base_internal::NominalCPUFrequency();
+-}
+-
+ #elif defined(_M_IX86) || defined(_M_X64)
+
+ #pragma intrinsic(__rdtsc)
+diff --git a/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h b/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h
+index 5e232c1..83552fc 100644
+--- a/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h
++++ b/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h
+@@ -22,7 +22,6 @@
+ // The following platforms have an implementation of a hardware counter.
+ #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
+ ((defined(__powerpc__) || defined(__ppc__)) && defined(__GLIBC__)) || \
+- defined(__riscv) || \
+ defined(_M_IX86) || (defined(_M_X64) && !defined(_M_ARM64EC))
+ #define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 1
+ #else
+@@ -54,8 +53,8 @@
+ #if ABSL_USE_UNSCALED_CYCLECLOCK
+ // This macro can be used to test if UnscaledCycleClock::Frequency()
+ // is NominalCPUFrequency() on a particular platform.
+-#if (defined(__i386__) || defined(__x86_64__) || defined(__riscv) || \
+- defined(_M_IX86) || defined(_M_X64))
++#if (defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || \
++ defined(_M_X64))
+ #define ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY
+ #endif
+ #endif
+--
+2.44.0
+