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authorGravatar Thomas Klausner <tk@giga.or.at>2022-03-08 22:01:16 +0100
committerGravatar GitHub <noreply@github.com>2022-03-08 16:01:16 -0500
commitc5a424a2a21005660b182516eb7a079cd8021699 (patch)
treecdae460da858ad3460a6a3dd48ceb358096d5702 /absl
parentf9b99adeddbe71208e65cead5f349add7aa9c9b5 (diff)
Add NetBSD support (#1121)
Diffstat (limited to 'absl')
-rw-r--r--absl/base/config.h5
-rw-r--r--absl/debugging/internal/elf_mem_image.cc4
-rw-r--r--absl/debugging/internal/vdso_support.cc9
3 files changed, 16 insertions, 2 deletions
diff --git a/absl/base/config.h b/absl/base/config.h
index acbdb75c..cd7781c0 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -414,7 +414,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
defined(_AIX) || defined(__ros__) || defined(__native_client__) || \
defined(__asmjs__) || defined(__wasm__) || defined(__Fuchsia__) || \
defined(__sun) || defined(__ASYLO__) || defined(__myriad2__) || \
- defined(__HAIKU__) || defined(__OpenBSD__)
+ defined(__HAIKU__) || defined(__OpenBSD__) || defined(__NetBSD__)
#define ABSL_HAVE_MMAP 1
#endif
@@ -425,7 +425,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
#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(__OpenBSD__)
+ defined(_AIX) || defined(__ros__) || defined(__OpenBSD__) || \
+ defined(__NetBSD__)
#define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1
#endif
diff --git a/absl/debugging/internal/elf_mem_image.cc b/absl/debugging/internal/elf_mem_image.cc
index 29a28181..a9d66714 100644
--- a/absl/debugging/internal/elf_mem_image.cc
+++ b/absl/debugging/internal/elf_mem_image.cc
@@ -351,7 +351,11 @@ void ElfMemImage::SymbolIterator::Update(int increment) {
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) {
diff --git a/absl/debugging/internal/vdso_support.cc b/absl/debugging/internal/vdso_support.cc
index 8a015d55..c655cf45 100644
--- a/absl/debugging/internal/vdso_support.cc
+++ b/absl/debugging/internal/vdso_support.cc
@@ -50,6 +50,10 @@
#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;
@@ -106,8 +110,13 @@ const void *VDSOSupport::Init() {
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;
}
}