17e18d1a08
Upstream commit: 0ea8174d62263c2679c95c0d215d2627e560f7aa - gmon: fix memory corruption issues [BZ# 30101] - gmon: improve mcount overflow handling [BZ# 27576] - gmon: Fix allocated buffer overflow (bug 29444) - posix: Fix system blocks SIGCHLD erroneously [BZ #30163] - x86_64: Fix asm constraints in feraiseexcept (bug 30305) - gshadow: Matching sgetsgent, sgetsgent_r ERANGE handling (bug 30151) - x86: Check minimum/maximum of non_temporal_threshold [BZ #29953] Resolves: #2188641 Resolves: #2172947 Resolves: #2177235 Resolves: #2177705 Resolves: #2180173
37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
commit 71eb9cc1ffd79e96549dfb16f8e86aaf88a3bac8
|
|
Author: Florian Weimer <fweimer@redhat.com>
|
|
Date: Mon Apr 3 17:23:11 2023 +0200
|
|
|
|
x86_64: Fix asm constraints in feraiseexcept (bug 30305)
|
|
|
|
The divss instruction clobbers its first argument, and the constraints
|
|
need to reflect that. Fortunately, with GCC 12, generated code does
|
|
not actually change, so there is no externally visible bug.
|
|
|
|
Suggested-by: Jakub Jelinek <jakub@redhat.com>
|
|
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
(cherry picked from commit 5d1ccdda7b0c625751661d50977f3dfbc73f8eae)
|
|
|
|
diff --git a/sysdeps/x86_64/fpu/fraiseexcpt.c b/sysdeps/x86_64/fpu/fraiseexcpt.c
|
|
index 44a1d93b34796e1a..a301b657c49b31b1 100644
|
|
--- a/sysdeps/x86_64/fpu/fraiseexcpt.c
|
|
+++ b/sysdeps/x86_64/fpu/fraiseexcpt.c
|
|
@@ -33,7 +33,7 @@ __feraiseexcept (int excepts)
|
|
/* One example of an invalid operation is 0.0 / 0.0. */
|
|
float f = 0.0;
|
|
|
|
- __asm__ __volatile__ ("divss %0, %0 " : : "x" (f));
|
|
+ __asm__ __volatile__ ("divss %0, %0 " : "+x" (f));
|
|
(void) &f;
|
|
}
|
|
|
|
@@ -43,7 +43,7 @@ __feraiseexcept (int excepts)
|
|
float f = 1.0;
|
|
float g = 0.0;
|
|
|
|
- __asm__ __volatile__ ("divss %1, %0" : : "x" (f), "x" (g));
|
|
+ __asm__ __volatile__ ("divss %1, %0" : "+x" (f) : "x" (g));
|
|
(void) &f;
|
|
}
|
|
|