Date: Fri, 6 Dec 2019 19:20:45 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355459 - head/sys/sys Message-ID: <201912061920.xB6JKjI4038383@repo.freebsd.org>
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Author: jhb Date: Fri Dec 6 19:20:45 2019 New Revision: 355459 URL: https://svnweb.freebsd.org/changeset/base/355459 Log: Remove SPARE_USRSPACE. This constant was used to reserve space at the top of the stack to hold translated system call arguments for non-default ABIs (the "stackgap"). However, none of the compatibility ABIs have used the stackgap in many years and the last use of SPARE_USRSPACE was removed in r355373. Reviewed by: kib Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D22697 Modified: head/sys/sys/exec.h Modified: head/sys/sys/exec.h ============================================================================== --- head/sys/sys/exec.h Fri Dec 6 18:51:16 2019 (r355458) +++ head/sys/sys/exec.h Fri Dec 6 19:20:45 2019 (r355459) @@ -77,7 +77,6 @@ struct execsw { * Prefer the kern.ps_strings or kern.proc.ps_strings sysctls to this constant. */ #define PS_STRINGS (USRSTACK - sizeof(struct ps_strings)) -#define SPARE_USRSPACE 4096 int exec_map_first_page(struct image_params *); void exec_unmap_first_page(struct image_params *);
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