From: Christophe Lyon <christophe.lyon@linaro.org>
Date: Tue, 17 Sep 2019 08:13:11 +0000 (+0000)
Subject: [PR91749][arm] FDPIC: Handle -mflip-thumb
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ecd4d80cb2ee6a72d46c59eff47860d2a0fa2daa;p=gcc.git

[PR91749][arm] FDPIC: Handle -mflip-thumb

2019-09-16  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/91749
	* config/arm/arm.c (arm_valid_target_attribute_rec): Make sure the
	mode attributed is supported by FDPIC.

From-SVN: r275799
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3a9e63783f3..144ed9bb861 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-09-17  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	PR target/91749
+	* config/arm/arm.c (arm_valid_target_attribute_rec): Make sure the
+	mode attributed is supported by FDPIC.
+
 2019-09-17  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/91790
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index db7de5e4a80..b59778cc77b 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -31179,7 +31179,11 @@ arm_valid_target_attribute_rec (tree args, struct gcc_options *opts)
     {
       argstr = NULL;
       if (!strcmp (q, "thumb"))
-	opts->x_target_flags |= MASK_THUMB;
+	{
+	  opts->x_target_flags |= MASK_THUMB;
+	  if (TARGET_FDPIC && !arm_arch_thumb2)
+	    sorry ("FDPIC mode is not supported in Thumb-1 mode");
+	}
 
       else if (!strcmp (q, "arm"))
 	opts->x_target_flags &= ~MASK_THUMB;