void-packages/srcpkgs/python3-grpcio/patches/abseil-sucks.patch

An all-in-one patch that fixes several issues:

1) UnscaledCycleClock not fully implemented for ppc*-musl (disabled on musl)
2) generic stacktrace implementation only works on glibc (disabled on musl)
3) powerpc stacktrace implementation only works on glibc (disabled on musl)
4) powerpc stacktrace implementation has ppc64 assumptions (fixed)
5) examine_stack.cpp makes glibc assumptions on powerpc (fixed)
6) randen_hwaes does not build on all ppc (fixed)

--- third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
+++ third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
@@ -20,7 +20,7 @@
 #include <intrin.h>
 #endif
 
-#if defined(__powerpc__) || defined(__ppc__)
+#if (defined(__powerpc__) || defined(__ppc__)) && defined(__GLIBC__)
 #ifdef __GLIBC__
 #include <sys/platform/ppc.h>
 #elif defined(__FreeBSD__)
@@ -59,7 +59,7 @@
   return base_internal::NominalCPUFrequency();
 }
 
-#elif defined(__powerpc__) || defined(__ppc__)
+#elif (defined(__powerpc__) || defined(__ppc__)) && defined(__GLIBC__)
 
 int64_t UnscaledCycleClock::Now() {
 #ifdef __GLIBC__
--- third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h
+++ third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h
@@ -46,7 +46,7 @@
 
 // The following platforms have an implementation of a hardware counter.
 #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
-  defined(__powerpc__) || defined(__ppc__) || \
+  ((defined(__powerpc__) || defined(__ppc__)) && defined(__GLIBC__)) || \
   defined(_M_IX86) || defined(_M_X64)
 #define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 1
 #else
--- third_party/abseil-cpp/absl/debugging/internal/examine_stack.cc
+++ third_party/abseil-cpp/absl/debugging/internal/examine_stack.cc
@@ -23,6 +23,10 @@
 #include <csignal>
 #include <cstdio>
 
+#if defined(__powerpc__)
+#include <asm/ptrace.h>
+#endif
+
 #include "absl/base/attributes.h"
 #include "absl/base/internal/raw_logging.h"
 #include "absl/base/macros.h"
@@ -51,8 +55,10 @@
     return reinterpret_cast<void*>(context->uc_mcontext.pc);
 #elif defined(__powerpc64__)
     return reinterpret_cast<void*>(context->uc_mcontext.gp_regs[32]);
-#elif defined(__powerpc__)
+#elif defined(__powerpc__) && defined(__GLIBC__)
     return reinterpret_cast<void*>(context->uc_mcontext.regs->nip);
+#elif defined(__powerpc__)
+    return reinterpret_cast<void*>(((struct pt_regs *)context->uc_regs)->nip);
 #elif defined(__riscv)
     return reinterpret_cast<void*>(context->uc_mcontext.__gregs[REG_PC]);
 #elif defined(__s390__) && !defined(__s390x__)
--- third_party/abseil-cpp/absl/debugging/internal/stacktrace_config.h
+++ third_party/abseil-cpp/absl/debugging/internal/stacktrace_config.h
@@ -34,13 +34,13 @@
 # if defined(__i386__) || defined(__x86_64__)
 #define ABSL_STACKTRACE_INL_HEADER \
     "absl/debugging/internal/stacktrace_x86-inl.inc"
-# elif defined(__ppc__) || defined(__PPC__)
+# elif (defined(__ppc__) || defined(__PPC__)) && defined(__GLIBC__)
 #define ABSL_STACKTRACE_INL_HEADER \
     "absl/debugging/internal/stacktrace_powerpc-inl.inc"
 # elif defined(__aarch64__)
 #define ABSL_STACKTRACE_INL_HEADER \
     "absl/debugging/internal/stacktrace_aarch64-inl.inc"
-# elif defined(__arm__)
+# elif defined(__arm__) && defined(__GLIBC__)
 // Note: When using glibc this may require -funwind-tables to function properly.
 #define ABSL_STACKTRACE_INL_HEADER \
   "absl/debugging/internal/stacktrace_generic-inl.inc"
@@ -49,10 +49,10 @@
    "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
 # endif
 #else  // defined(NO_FRAME_POINTER)
-# if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
+# if (defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)) && defined(__GLIBC__)
 #define ABSL_STACKTRACE_INL_HEADER \
     "absl/debugging/internal/stacktrace_generic-inl.inc"
-# elif defined(__ppc__) || defined(__PPC__)
+# elif (defined(__ppc__) || defined(__PPC__)) && defined(__GLIBC__)
 #define ABSL_STACKTRACE_INL_HEADER \
     "absl/debugging/internal/stacktrace_generic-inl.inc"
 # else
--- third_party/abseil-cpp/absl/debugging/internal/stacktrace_powerpc-inl.inc
+++ third_party/abseil-cpp/absl/debugging/internal/stacktrace_powerpc-inl.inc
@@ -130,8 +130,13 @@
         StacktracePowerPCGetLR(new_sp) == kernel_sigtramp_rt64_address) {
       const ucontext_t* signal_context =
           reinterpret_cast<const ucontext_t*>(uc);
+#if defined(__powerpc64__)
       void **const sp_before_signal =
           reinterpret_cast<void**>(signal_context->uc_mcontext.gp_regs[PT_R1]);
+#else
+      void **const sp_before_signal =
+          reinterpret_cast<void**>(signal_context->uc_mcontext.uc_regs->gregs[PT_R1]);
+#endif
       // Check that alleged sp before signal is nonnull and is reasonably
       // aligned.
       if (sp_before_signal != nullptr &&
--- third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc
+++ third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc
@@ -141,6 +141,7 @@ ABSL_NAMESPACE_END
 #include <altivec.h>
 // <altivec.h> #defines vector __vector; in C++, this is bad form.
 #undef vector
+#undef bool
 
 // Rely on the PowerPC AltiVec vector operations for accelerated AES
 // instructions. GCC support of the PPC vector types is described in: