From 74b38bca7fdd9390536bac399392cf5fd4bbd7f5 Mon Sep 17 00:00:00 2001 From: Tamar Christina Date: Fri, 17 Jul 2020 13:10:53 +0100 Subject: [PATCH] AArch64: Add GCC_CPUINFO override This adds an in intentionally undocumented environment variable GCC_CPUINFO which can be used to test -mcpu=native. Tests using this are added later on. gcc/ChangeLog: * config/aarch64/driver-aarch64.c (host_detect_local_cpu): Add GCC_CPUINFO. (cherry picked from commit 55f6addc0c102eab2bf19d94de3ce52f9de0ab91) --- gcc/config/aarch64/driver-aarch64.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/gcc/config/aarch64/driver-aarch64.c b/gcc/config/aarch64/driver-aarch64.c index 2a5536d45ae3..1d1d99f72082 100644 --- a/gcc/config/aarch64/driver-aarch64.c +++ b/gcc/config/aarch64/driver-aarch64.c @@ -259,6 +259,7 @@ host_detect_local_cpu (int argc, const char **argv) unsigned long default_flags = 0; std::string buf; size_t sep_pos = -1; + char *fcpu_info; gcc_assert (argc); @@ -276,7 +277,11 @@ host_detect_local_cpu (int argc, const char **argv) if (!arch && !tune && !cpu) goto not_found; - f = fopen ("/proc/cpuinfo", "r"); + fcpu_info = getenv ("GCC_CPUINFO"); + if (fcpu_info) + f = fopen (fcpu_info, "r"); + else + f = fopen ("/proc/cpuinfo", "r"); if (f == NULL) goto not_found; -- 2.47.2