diff options
Diffstat (limited to 'build_files/build_environment/patches/usd.diff')
| -rw-r--r-- | build_files/build_environment/patches/usd.diff | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/build_files/build_environment/patches/usd.diff b/build_files/build_environment/patches/usd.diff index 42527a4f443..dc4982ad114 100644 --- a/build_files/build_environment/patches/usd.diff +++ b/build_files/build_environment/patches/usd.diff @@ -53,3 +53,147 @@ diff -ru USD-20.11/pxr/base/tf/pxrLZ4/lz4.cpp external_usd/pxr/base/tf/pxrLZ4/lz /*-****************************** * Compression functions + +From 442d087962f762deeb8b6e49a0955753fcf9aeb9 Mon Sep 17 00:00:00 2001 +From: Tsahi Zidenberg <tsahee@amazon.com> +Date: Sun, 15 Nov 2020 15:18:24 +0000 +Subject: [PATCH 1/2] stackTrace: support aarch64/linux + +stacktrace calls syscall directly via assembler. Create compatible +aarch64 code. +--- + pxr/base/arch/stackTrace.cpp | 30 ++++++++++++++++++++++++------ + 1 file changed, 24 insertions(+), 6 deletions(-) + +diff --git a/pxr/base/arch/stackTrace.cpp b/pxr/base/arch/stackTrace.cpp +index dcc1dfd46..c11aabeb1 100644 +--- a/pxr/base/arch/stackTrace.cpp ++++ b/pxr/base/arch/stackTrace.cpp +@@ -583,7 +583,6 @@ nonLockingLinux__execve (const char *file, + char *const argv[], + char *const envp[]) + { +-#if defined(ARCH_BITS_64) + /* + * We make a direct system call here, because we can't find an + * execve which corresponds with the non-locking fork we call +@@ -594,7 +593,27 @@ nonLockingLinux__execve (const char *file, + * hangs in a threaded app. (We use the non-locking fork to get + * around problems with forking when we have had memory + * corruption.) whew. +- * ++ */ ++ ++ unsigned long result; ++ ++#if defined (__aarch64__) ++ { ++ register long __file_result asm ("x0") = (long)file; ++ register char* const* __argv asm ("x1") = argv; ++ register char* const* __envp asm ("x2") = envp; ++ register long __num_execve asm ("x8") = 221; ++ __asm__ __volatile__ ( ++ "svc 0" ++ : "=r" (__file_result) ++ : "r"(__num_execve), "r" (__file_result), "r" (__argv), "r" (__envp) ++ : "memory" ++ ); ++ result = __file_result; ++ } ++#elif defined(ARCH_CPU_INTEL) && defined(ARCH_BITS_64) ++ ++ /* + * %rdi, %rsi, %rdx, %rcx, %r8, %r9 are args 0-5 + * syscall clobbers %rcx and %r11 + * +@@ -603,7 +622,6 @@ nonLockingLinux__execve (const char *file, + * constraints to gcc. + */ + +- unsigned long result; + __asm__ __volatile__ ( + "mov %0, %%rdi \n\t" + "mov %%rcx, %%rsi \n\t" +@@ -614,6 +632,9 @@ nonLockingLinux__execve (const char *file, + : "0" (file), "c" (argv), "d" (envp) + : "memory", "cc", "r11" + ); ++#else ++#error Unknown architecture ++#endif + + if (result >= 0xfffffffffffff000) { + errno = -result; +@@ -621,9 +642,6 @@ nonLockingLinux__execve (const char *file, + } + + return result; +-#else +-#error Unknown architecture +-#endif + } + + #endif + +From a1dffe02519bb3c6ccbbe8c6c58304da5db98995 Mon Sep 17 00:00:00 2001 +From: Tsahi Zidenberg <tsahee@amazon.com> +Date: Sun, 15 Nov 2020 15:22:52 +0000 +Subject: [PATCH 2/2] timing: support aarch64/linux + +The aarch64 arch-timer is directly accessible to userspace via two +registers: +CNTVCT_EL0 - holds the current counter value +CNTFRQ_EL0 - holds the counter frequency (in Hz) +--- + pxr/base/arch/timing.cpp | 6 ++++++ + pxr/base/arch/timing.h | 6 +++++- + 2 files changed, 11 insertions(+), 1 deletion(-) + +diff --git a/pxr/base/arch/timing.cpp b/pxr/base/arch/timing.cpp +index 27ad58fed..9022950c1 100644 +--- a/pxr/base/arch/timing.cpp ++++ b/pxr/base/arch/timing.cpp +@@ -59,6 +59,11 @@ ARCH_HIDDEN + void + Arch_InitTickTimer() + { ++#ifdef __aarch64__ ++ uint64_t counter_hz; ++ __asm __volatile("mrs %0, CNTFRQ_EL0" : "=&r" (counter_hz)); ++ Arch_NanosecondsPerTick = double(1e9) / double(counter_hz); ++#else + // NOTE: Normally ifstream would be cleaner, but it causes crashes when + // used in conjunction with DSOs and the Intel Compiler. + FILE *in; +@@ -135,6 +140,7 @@ Arch_InitTickTimer() + } + + Arch_NanosecondsPerTick = double(1e9) / double(cpuHz); ++#endif + } + #elif defined(ARCH_OS_WINDOWS) + +diff --git a/pxr/base/arch/timing.h b/pxr/base/arch/timing.h +index 67ec0d15f..6dc3e85a0 100644 +--- a/pxr/base/arch/timing.h ++++ b/pxr/base/arch/timing.h +@@ -36,7 +36,7 @@ + /// \addtogroup group_arch_SystemFunctions + ///@{ + +-#if defined(ARCH_OS_LINUX) ++#if defined(ARCH_OS_LINUX) && defined(ARCH_CPU_INTEL) + #include <x86intrin.h> + #elif defined(ARCH_OS_DARWIN) + #include <mach/mach_time.h> +@@ -69,6 +69,10 @@ ArchGetTickTime() + #elif defined(ARCH_CPU_INTEL) + // On Intel we'll use the rdtsc instruction. + return __rdtsc(); ++#elif defined (__aarch64__) ++ uint64_t result; ++ __asm __volatile("mrs %0, CNTVCT_EL0" : "=&r" (result)); ++ return result; + #else + #error Unknown architecture. + #endif |