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* [gcc r8-10416] Arm: Add GCC_CPUINFO override
@ 2020-08-21 15:37 Tamar Christina
0 siblings, 0 replies; only message in thread
From: Tamar Christina @ 2020-08-21 15:37 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:f7f6626f0398b9977a67a9e219302274c4121e3a
commit r8-10416-gf7f6626f0398b9977a67a9e219302274c4121e3a
Author: Tamar Christina <tamar.christina@arm.com>
Date: Fri Jul 17 13:12:00 2020 +0100
Arm: Add GCC_CPUINFO override
This adds an in intentionally undocumented environment variable
GCC_CPUINFO which can be used to test -mcpu=native.
Tests using these are added later on.
gcc/ChangeLog:
* config/arm/driver-arm.c (host_detect_local_cpu): Add GCC_CPUINFO.
(cherry picked from commit 34a6c43487caf3a2a0ec9c7c79c526d116abc8b9)
Diff:
---
gcc/config/arm/driver-arm.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/gcc/config/arm/driver-arm.c b/gcc/config/arm/driver-arm.c
index dc2f1de01a8..a53c2272864 100644
--- a/gcc/config/arm/driver-arm.c
+++ b/gcc/config/arm/driver-arm.c
@@ -97,6 +97,7 @@ host_detect_local_cpu (int argc, const char **argv)
FILE *f = NULL;
bool arch;
const struct vendor_cpu *cpu_table = NULL;
+ char *fcpu_info = NULL;
if (argc < 1)
goto not_found;
@@ -105,7 +106,12 @@ host_detect_local_cpu (int argc, const char **argv)
if (!arch && strcmp (argv[0], "cpu") != 0 && strcmp (argv[0], "tune"))
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;
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2020-08-21 15:37 [gcc r8-10416] Arm: Add GCC_CPUINFO override Tamar Christina
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