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GET /api/patches/2216627/?format=api
{ "id": 2216627, "url": "http://patchwork.ozlabs.org/api/patches/2216627/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/orecl6aw7v.fsf@lxoliva.fsfla.org/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<orecl6aw7v.fsf@lxoliva.fsfla.org>", "list_archive_url": null, "date": "2026-03-27T01:37:40", "name": "libgcc: vxworks: work around warnings promoted to errors on aarch64", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "fd73e2fcf94441bec713118afd50dfb382eadf03", "submitter": { "id": 74937, "url": "http://patchwork.ozlabs.org/api/people/74937/?format=api", "name": "Alexandre Oliva", "email": "oliva@adacore.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/orecl6aw7v.fsf@lxoliva.fsfla.org/mbox/", "series": [ { "id": 497671, "url": "http://patchwork.ozlabs.org/api/series/497671/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=497671", "date": "2026-03-27T01:37:40", "name": "libgcc: vxworks: work around warnings promoted to errors on aarch64", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497671/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216627/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216627/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=adacore.com header.i=@adacore.com header.a=rsa-sha256\n header.s=google header.b=B6I6isGH;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=temperror (SPF Temporary Error: DNS Timeout) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; 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Allow warnings about\nthem.\n\nvxTas calls are supposed to take __vx_tas_t, but upon passing it that\non aarch64, we get warnings about discarding volatile qualifiers, that\nnot even explicit type casts avoid. So, allow the warnings.\n\nRegstrapped on x86_64-linux-gnu. Also tested with ppc-vx7r2,\nppc64-vx7r2, arm-vx7r2, and aarch64-vx7r2. Ok to install?\n\n\nfor libgcc/ChangeLog\n\n\t* config/gthr-vworks-tls.c (TLS_DELETE_HOOK_ARG): Type-cast\n\tNULL constant to avoid warning.\n\t* config/t-vxworks (LIBGCC2_CFLAGS): Tolerate unused-parameter\n\tand discarded-qualifiers errors.\n---\n libgcc/config/gthr-vxworks-tls.c | 2 +-\n libgcc/config/t-vxworks | 13 +++++++++++++\n 2 files changed, 14 insertions(+), 1 deletion(-)", "diff": "diff --git a/libgcc/config/gthr-vxworks-tls.c b/libgcc/config/gthr-vxworks-tls.c\nindex 0c09604204a69..2ca69cf040062 100644\n--- a/libgcc/config/gthr-vxworks-tls.c\n+++ b/libgcc/config/gthr-vxworks-tls.c\n@@ -174,7 +174,7 @@ static __gthread_once_t tls_init_guard = __GTHREAD_ONCE_INIT;\n \n #ifdef __RTP__\n #define TLS_DELETE_HOOK_ARG_DECL TASK_ID tcb ATTRIBUTE_UNUSED\n-#define TLS_DELETE_HOOK_ARG NULL\n+#define TLS_DELETE_HOOK_ARG ((TASK_ID)0)\n #else\n #define TLS_DELETE_HOOK_ARG_DECL void\n #define TLS_DELETE_HOOK_ARG\ndiff --git a/libgcc/config/t-vxworks b/libgcc/config/t-vxworks\nindex ca0d0cfcb6a2e..3967e0065469b 100644\n--- a/libgcc/config/t-vxworks\n+++ b/libgcc/config/t-vxworks\n@@ -37,6 +37,19 @@ LIBGCC2_INCLUDES = -nostdinc -include vxworks-predef.h -I. \\\n -isystem $(MULTIBUILDTOP)../../gcc/include-fixed$(MULTISUBDIR) \\\n -isystem $(MULTIBUILDTOP)../../gcc/include\n \n+# The aarch64-vx7r2 objLibP.h defines an inline function with unused\n+# parameters. Ideally using -isystem instead of -I above would work\n+# around that, but then we get conflicts between GCC's and VxWorks'\n+# regs.h.\n+\n+LIBGCC2_CFLAGS += -Wno-error=unused-parameter\n+\n+# aarch64-vx7r2 also gets complaints about dropping volatile\n+# qualifiers in vxTas calls taking a pointer to __vx_tas_t.\n+# An explicit cast doesn't avoid the warning, alas.\n+\n+LIBGCC2_CFLAGS += -Wno-error=discarded-qualifiers\n+\n # Use these also for the vxcrstuff objects (.e.g for version.h), on top of\n # the options possibly already set specifically for the target:\n CRTSTUFF_T_CFLAGS += $(LIBGCC2_INCLUDES)\n", "prefixes": [] }