$NetBSD: patch-third__party_abseil-cpp_netbsd-sunos.patch,v 1.1 2024/01/01 12:01:00 ryoon Exp $

--- third_party/abseil-cpp/netbsd-sunos.patch.orig	2023-11-29 10:06:39.399538673 +0000
+++ third_party/abseil-cpp/netbsd-sunos.patch
@@ -0,0 +1,85 @@
+--- absl/debugging/internal/vdso_support.cc	2021-11-04 00:26:14.000000000 +0900
++++ absl/debugging/internal/vdso_support.cc	2023-11-29 18:58:33.941707708 +0900
+@@ -50,8 +50,14 @@
+ #define AT_SYSINFO_EHDR 33  // for crosstoolv10
+ #endif
+ 
++#if defined(__NetBSD__)
++using Elf32_auxv_t = Aux32Info;
++using Elf64_auxv_t = Aux64Info;
++#endif
+ #if defined(__FreeBSD__)
++#if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64
+ using Elf64_auxv_t = Elf64_Auxinfo;
++#endif
+ using Elf32_auxv_t = Elf32_Auxinfo;
+ #endif
+ 
+@@ -93,6 +101,9 @@
+     }
+   }
+ #endif  // ABSL_HAVE_GETAUXVAL
++#if defined(__sun)
++      return nullptr;
++#else // !__sun
+   if (vdso_base_.load(std::memory_order_relaxed) == kInvalidBase) {
+     int fd = open("/proc/self/auxv", O_RDONLY);
+     if (fd == -1) {
+@@ -104,8 +115,13 @@
+     ElfW(auxv_t) aux;
+     while (read(fd, &aux, sizeof(aux)) == sizeof(aux)) {
+       if (aux.a_type == AT_SYSINFO_EHDR) {
++#if defined(__NetBSD__)
++        vdso_base_.store(reinterpret_cast<void *>(aux.a_v),
++                         std::memory_order_relaxed);
++#else
+         vdso_base_.store(reinterpret_cast<void *>(aux.a_un.a_val),
+                          std::memory_order_relaxed);
++#endif
+         break;
+       }
+     }
+@@ -127,6 +143,7 @@
+   // from assigning to getcpu_fn_ more than once.
+   getcpu_fn_.store(fn, std::memory_order_relaxed);
+   return vdso_base_.load(std::memory_order_relaxed);
++#endif // __sun
+ }
+ 
+ const void *VDSOSupport::SetBase(const void *base) {
+
+--- absl/debugging/internal/elf_mem_image.cc	2021-11-04 00:26:14.000000000 +0900
++++ absl/debugging/internal/elf_mem_image.cc	2023-09-18 23:40:01.000000000 +0900
+@@ -351,7 +350,11 @@
+   const ElfW(Versym) *version_symbol = image->GetVersym(index_);
+   ABSL_RAW_CHECK(symbol && version_symbol, "");
+   const char *const symbol_name = image->GetDynstr(symbol->st_name);
++#if defined(__NetBSD__)
++  const int version_index = version_symbol->vs_vers & VERSYM_VERSION;
++#else
+   const ElfW(Versym) version_index = version_symbol[0] & VERSYM_VERSION;
++#endif
+   const ElfW(Verdef) *version_definition = nullptr;
+   const char *version_name = "";
+   if (symbol->st_shndx == SHN_UNDEF) {
+
+--- absl/base/config.h.orig	2023-11-29 11:18:01.165394118 +0000
++++ absl/base/config.h
+@@ -414,7 +414,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMES
+     defined(_AIX) || defined(__ros__) || defined(__native_client__) ||    \
+     defined(__asmjs__) || defined(__wasm__) || defined(__Fuchsia__) ||    \
+     defined(__sun) || defined(__ASYLO__) || defined(__myriad2__) ||       \
+-    defined(__HAIKU__)
++    defined(__HAIKU__) || defined(__NetBSD__)
+ #define ABSL_HAVE_MMAP 1
+ #endif
+ 
+@@ -425,7 +425,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMES
+ #ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM
+ #error ABSL_HAVE_PTHREAD_GETSCHEDPARAM cannot be directly set
+ #elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
+-    defined(_AIX) || defined(__ros__)
++    defined(_AIX) || defined(__ros__) || defined(__NetBSD__)
+ #define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1
+ #endif
+