git: 503f752a347f - main - sysent: retire unused SV_IA32

The branch main has been updated by brooks:

URL: https://cgit.FreeBSD.org/src/commit/?id=503f752a347fdd74e406f3700dd2ad3bd770f302

commit 503f752a347fdd74e406f3700dd2ad3bd770f302
Author:     Brooks Davis <brooks@FreeBSD.org>
AuthorDate: 2025-06-03 22:59:30 +0000
Commit:     Brooks Davis <brooks@FreeBSD.org>
CommitDate: 2025-06-03 22:59:30 +0000

    sysent: retire unused SV_IA32
    
    When COMPAT_IA32 was generaliaed to COMPAT_FREEBSD32 in 2010 (commit
    841c0c7ec75b), all runtime uses of SV_IA32 were removed in favor of
    SV_ILP32 check.  Given SV_ILP32's existance it makes no
    sense to dynamically check for SV_IA32 (even if we had a 32-bit x86 ABI
    with 64-bit time_t we needed to differentiate, SV_IA32 would be the
    wrong spelling.)  As such, remove SV_IA32 and mark the bit reserved.
    
    Reviewed by:    kib
    Sponsored by:   DARPA, AFRL
    Differential Revision:  https://reviews.freebsd.org/D50672
---
 sys/amd64/linux32/linux32_sysvec.c | 2 +-
 sys/compat/ia32/ia32_sysvec.c      | 2 +-
 sys/i386/i386/elf_machdep.c        | 2 +-
 sys/i386/linux/linux_sysvec.c      | 4 ++--
 sys/kern/imgact_aout.c             | 6 ++----
 sys/sys/sysent.h                   | 2 +-
 6 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c
index a8cc03ea8c71..d7f87e2fdf34 100644
--- a/sys/amd64/linux32/linux32_sysvec.c
+++ b/sys/amd64/linux32/linux32_sysvec.c
@@ -799,7 +799,7 @@ struct sysentvec elf_linux_sysvec = {
 	.sv_setregs	= linux_exec_setregs,
 	.sv_fixlimit	= linux32_fixlimit,
 	.sv_maxssiz	= &linux32_maxssiz,
-	.sv_flags	= SV_ABI_LINUX | SV_ILP32 | SV_IA32 | SV_SHP |
+	.sv_flags	= SV_ABI_LINUX | SV_ILP32 | SV_SHP |
 	    SV_SIG_DISCIGN | SV_SIG_WAITNDQ | SV_TIMEKEEP,
 	.sv_set_syscall_retval = linux32_set_syscall_retval,
 	.sv_fetch_syscall_args = linux32_fetch_syscall_args,
diff --git a/sys/compat/ia32/ia32_sysvec.c b/sys/compat/ia32/ia32_sysvec.c
index 5174438bc40a..0ea7d072e911 100644
--- a/sys/compat/ia32/ia32_sysvec.c
+++ b/sys/compat/ia32/ia32_sysvec.c
@@ -126,7 +126,7 @@ struct sysentvec ia32_freebsd_sysvec = {
 	.sv_setregs	= ia32_setregs,
 	.sv_fixlimit	= ia32_fixlimit,
 	.sv_maxssiz	= &ia32_maxssiz,
-	.sv_flags	= SV_ABI_FREEBSD | SV_ASLR | SV_IA32 | SV_ILP32 |
+	.sv_flags	= SV_ABI_FREEBSD | SV_ASLR | SV_ILP32 |
 			    SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER |
 			    SV_DSO_SIG | SV_SIGSYS,
 	.sv_set_syscall_retval = ia32_set_syscall_retval,
diff --git a/sys/i386/i386/elf_machdep.c b/sys/i386/i386/elf_machdep.c
index eb6ac5735e56..13769af0fbca 100644
--- a/sys/i386/i386/elf_machdep.c
+++ b/sys/i386/i386/elf_machdep.c
@@ -74,7 +74,7 @@ struct sysentvec elf32_freebsd_sysvec = {
 	.sv_setregs	= exec_setregs,
 	.sv_fixlimit	= NULL,
 	.sv_maxssiz	= NULL,
-	.sv_flags	= SV_ABI_FREEBSD | SV_ASLR | SV_IA32 | SV_ILP32 |
+	.sv_flags	= SV_ABI_FREEBSD | SV_ASLR | SV_ILP32 |
 			    SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER | SV_SIGSYS,
 	.sv_set_syscall_retval = cpu_set_syscall_retval,
 	.sv_fetch_syscall_args = cpu_fetch_syscall_args,
diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c
index 24f8ec2d7ea8..c68a0e17a8e4 100644
--- a/sys/i386/linux/linux_sysvec.c
+++ b/sys/i386/linux/linux_sysvec.c
@@ -596,7 +596,7 @@ struct sysentvec linux_sysvec = {
 	.sv_setregs	= linux_exec_setregs,
 	.sv_fixlimit	= NULL,
 	.sv_maxssiz	= NULL,
-	.sv_flags	= SV_ABI_LINUX | SV_AOUT | SV_IA32 | SV_ILP32 |
+	.sv_flags	= SV_ABI_LINUX | SV_AOUT | SV_ILP32 |
 	    SV_SIG_DISCIGN | SV_SIG_WAITNDQ,
 	.sv_set_syscall_retval = linux_set_syscall_retval,
 	.sv_fetch_syscall_args = linux_fetch_syscall_args,
@@ -638,7 +638,7 @@ struct sysentvec elf_linux_sysvec = {
 	.sv_setregs	= linux_exec_setregs,
 	.sv_fixlimit	= NULL,
 	.sv_maxssiz	= NULL,
-	.sv_flags	= SV_ABI_LINUX | SV_IA32 | SV_ILP32 | SV_SHP |
+	.sv_flags	= SV_ABI_LINUX | SV_ILP32 | SV_SHP |
 	    SV_SIG_DISCIGN | SV_SIG_WAITNDQ | SV_TIMEKEEP,
 	.sv_set_syscall_retval = linux_set_syscall_retval,
 	.sv_fetch_syscall_args = linux_fetch_syscall_args,
diff --git a/sys/kern/imgact_aout.c b/sys/kern/imgact_aout.c
index 0ecfaa65c84e..9978c74f0dee 100644
--- a/sys/kern/imgact_aout.c
+++ b/sys/kern/imgact_aout.c
@@ -90,8 +90,7 @@ struct sysentvec aout_sysvec = {
 	.sv_setregs	= exec_setregs,
 	.sv_fixlimit	= NULL,
 	.sv_maxssiz	= NULL,
-	.sv_flags	= SV_ABI_FREEBSD | SV_AOUT | SV_IA32 | SV_ILP32 |
-			    SV_SIGSYS,
+	.sv_flags	= SV_ABI_FREEBSD | SV_AOUT | SV_ILP32 | SV_SIGSYS,
 	.sv_set_syscall_retval = cpu_set_syscall_retval,
 	.sv_fetch_syscall_args = cpu_fetch_syscall_args,
 	.sv_syscallnames = syscallnames,
@@ -140,8 +139,7 @@ struct sysentvec aout_sysvec = {
 	.sv_setregs	= ia32_setregs,
 	.sv_fixlimit	= ia32_fixlimit,
 	.sv_maxssiz	= &ia32_maxssiz,
-	.sv_flags	= SV_ABI_FREEBSD | SV_AOUT | SV_IA32 | SV_ILP32 |
-			    SV_SIGSYS,
+	.sv_flags	= SV_ABI_FREEBSD | SV_AOUT | SV_ILP32 | SV_SIGSYS,
 	.sv_set_syscall_retval = ia32_set_syscall_retval,
 	.sv_fetch_syscall_args = ia32_fetch_syscall_args,
 	.sv_syscallnames = freebsd32_syscallnames,
diff --git a/sys/sys/sysent.h b/sys/sys/sysent.h
index c582ed494be9..dffe77de91d0 100644
--- a/sys/sys/sysent.h
+++ b/sys/sys/sysent.h
@@ -162,7 +162,7 @@ struct sysentvec {
 
 #define	SV_ILP32	0x000100	/* 32-bit executable. */
 #define	SV_LP64		0x000200	/* 64-bit executable. */
-#define	SV_IA32		0x004000	/* Intel 32-bit executable. */
+#define	SV_RESERVED0	0x004000	/* Formerly SV_IA32 */
 #define	SV_AOUT		0x008000	/* a.out executable. */
 #define	SV_SHP		0x010000	/* Shared page. */
 #define	SV_SIGSYS	0x020000	/* SIGSYS for non-existing syscall */