Date: Sun, 12 Dec 2021 14:30:34 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a4007ae10c8f - main - rnd_elf: add comment explaining the interface Message-ID: <202112121430.1BCEUYDE066669@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=a4007ae10c8ffdd89155b4e0b6665b721d7b0a6c commit a4007ae10c8ffdd89155b4e0b6665b721d7b0a6c Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-12-09 15:22:54 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-12-12 14:28:38 +0000 rnd_elf: add comment explaining the interface Requested and reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D33359 --- sys/kern/imgact_elf.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index 6fcfef4050bb..7e7d4bdc1647 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -875,6 +875,16 @@ fail: return (error); } +/* + * Select randomized valid address in the map map, between minv and + * maxv, with specified alignment. The [minv, maxv) range must belong + * to the map. Note that function only allocates the address, it is + * up to caller to clamp maxv in a way that the final allocation + * length fit into the map. + * + * Result is returned in *resp, error code indicates that arguments + * did not pass sanity checks for overflow and range correctness. + */ static int __CONCAT(rnd_, __elfN(base))(vm_map_t map, u_long minv, u_long maxv, u_int align, u_long *resp)
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