52 lines
1.8 KiB
Diff
52 lines
1.8 KiB
Diff
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From 331763de7d4850702a0f67298f36017c73cdb103 Mon Sep 17 00:00:00 2001
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From: Eric Botcazou <ebotcazou@adacore.com>
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Date: Fri, 5 Mar 2021 12:45:41 +0100
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Subject: [PATCH] Fix build breakage with latest glibc release
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To: gcc-patches@gcc.gnu.org
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gcc/ada/
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PR ada/99264
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* init.c (__gnat_alternate_sta) [Linux]: Remove preprocessor test on
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MINSIGSTKSZ and bump size to 32KB.
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* libgnarl/s-osinte__linux.ads (Alternate_Stack_Size): Bump to 32KB.
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---
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gcc/ada/init.c | 8 ++------
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gcc/ada/libgnarl/s-osinte__linux.ads | 2 +-
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2 files changed, 3 insertions(+), 7 deletions(-)
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diff --git a/gcc/ada/init.c b/gcc/ada/init.c
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index e76aa79c5a8..3ceb1a31b02 100644
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--- a/gcc/ada/init.c
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+++ b/gcc/ada/init.c
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@@ -579,12 +579,8 @@ __gnat_error_handler (int sig, siginfo_t *si ATTRIBUTE_UNUSED, void *ucontext)
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#ifndef __ia64__
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#define HAVE_GNAT_ALTERNATE_STACK 1
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-/* This must be in keeping with System.OS_Interface.Alternate_Stack_Size.
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- It must be larger than MINSIGSTKSZ and hopefully near 2 * SIGSTKSZ. */
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-# if 16 * 1024 < MINSIGSTKSZ
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-# error "__gnat_alternate_stack too small"
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-# endif
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-char __gnat_alternate_stack[16 * 1024];
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+/* This must be in keeping with System.OS_Interface.Alternate_Stack_Size. */
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+char __gnat_alternate_stack[32 * 1024];
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#endif
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#ifdef __XENO__
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diff --git a/gcc/ada/s-osinte-linux.ads b/gcc/ada/s-osinte-linux.ads
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index b0ba2296398..9e408a5b2ab 100644
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--- a/gcc/ada/s-osinte-linux.ads
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+++ b/gcc/ada/s-osinte-linux.ads
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@@ -325,7 +325,7 @@ package System.OS_Interface is
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pragma Import (C, Alternate_Stack, "__gnat_alternate_stack");
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-- The alternate signal stack for stack overflows
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- Alternate_Stack_Size : constant := 16 * 1024;
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+ Alternate_Stack_Size : constant := 32 * 1024;
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-- This must be in keeping with init.c:__gnat_alternate_stack
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function Get_Stack_Base (thread : pthread_t) return Address;
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--
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2.31.1
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