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nodejs/SOURCES/0003-src-use-getauxval-in-n...

71 lines
2.2 KiB

From 63b2d16ea3985b62be372ea1da7987dc32ddcc3b Mon Sep 17 00:00:00 2001
From: Daniel Bevenius <daniel.bevenius@gmail.com>
Date: Tue, 2 Jun 2020 05:33:25 +0200
Subject: [PATCH 3/3] src: use getauxval in node_main.cc
This commit suggests using getauxval in node_main.cc.
The motivation for this is that getauxval was introduced in glibc 2.16
and looking at BUILDING.md, in the 'Platform list' section, it looks
like we now support glibc >= 2.17 and perhaps this change would be
alright now.
PR-URL: https://github.com/nodejs/node/pull/33693
Refs: https://github.com/nodejs/node/pull/12548
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
src/node_main.cc | 18 ++----------------
1 file changed, 2 insertions(+), 16 deletions(-)
diff --git a/src/node_main.cc b/src/node_main.cc
index e92c0df94297e2ece43dbdf71166e555713ef6f2..70be5b83fafcde596e65086b08305aa89702fd52 100644
--- a/src/node_main.cc
+++ b/src/node_main.cc
@@ -72,17 +72,11 @@ int wmain(int argc, wchar_t* wargv[]) {
return node::Start(argc, argv);
}
#else
// UNIX
#ifdef __linux__
-#include <elf.h>
-#ifdef __LP64__
-#define Elf_auxv_t Elf64_auxv_t
-#else
-#define Elf_auxv_t Elf32_auxv_t
-#endif // __LP64__
-extern char** environ;
+#include <sys/auxv.h>
#endif // __linux__
#if defined(__POSIX__) && defined(NODE_SHARED_MODE)
#include <string.h>
#include <signal.h>
#endif
@@ -107,19 +101,11 @@ int main(int argc, char* argv[]) {
sigaction(SIGPIPE, &act, nullptr);
}
#endif
#if defined(__linux__)
- char** envp = environ;
- while (*envp++ != nullptr) {}
- Elf_auxv_t* auxv = reinterpret_cast<Elf_auxv_t*>(envp);
- for (; auxv->a_type != AT_NULL; auxv++) {
- if (auxv->a_type == AT_SECURE) {
- node::per_process::linux_at_secure = auxv->a_un.a_val;
- break;
- }
- }
+ node::per_process::linux_at_secure = getauxval(AT_SECURE);
#endif
// Disable stdio buffering, it interacts poorly with printf()
// calls elsewhere in the program (e.g., any logging from V8.)
setvbuf(stdout, nullptr, _IONBF, 0);
setvbuf(stderr, nullptr, _IONBF, 0);
--
2.30.1