From 66afa4152f77f82247320e6bc09d872556fa9bd6 Mon Sep 17 00:00:00 2001 From: Bryan Drewery Date: Sat, 4 Jun 2016 17:39:42 +0000 Subject: [PATCH] Support all architectures by just using sysent. PowerPC64 has two different ABIs, neither of which is elf64_freebsd_sysvec. Using sysent and freebsd32_sysent achieves the same effect. X-MFC-With: r301130 MFC after: 1 week Sponsored by: EMC / Isilon Storage Division --- sys/dev/filemon/filemon_wrapper.c | 79 +++++++++++++------------------ 1 file changed, 33 insertions(+), 46 deletions(-) diff --git a/sys/dev/filemon/filemon_wrapper.c b/sys/dev/filemon/filemon_wrapper.c index 1b304d2e370..3934b161d4e 100644 --- a/sys/dev/filemon/filemon_wrapper.c +++ b/sys/dev/filemon/filemon_wrapper.c @@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$"); #include #include #include +#include #include #include "opt_compat.h" @@ -414,32 +415,25 @@ filemon_event_process_fork(void *arg __unused, struct proc *p1, static void filemon_wrapper_install(void) { -#if defined(__LP64__) - struct sysent *sv_table = elf64_freebsd_sysvec.sv_table; -#else - struct sysent *sv_table = elf32_freebsd_sysvec.sv_table; -#endif - sv_table[SYS_chdir].sy_call = (sy_call_t *) filemon_wrapper_chdir; - sv_table[SYS_open].sy_call = (sy_call_t *) filemon_wrapper_open; - sv_table[SYS_openat].sy_call = (sy_call_t *) filemon_wrapper_openat; - sv_table[SYS_rename].sy_call = (sy_call_t *) filemon_wrapper_rename; - sv_table[SYS_unlink].sy_call = (sy_call_t *) filemon_wrapper_unlink; - sv_table[SYS_link].sy_call = (sy_call_t *) filemon_wrapper_link; - sv_table[SYS_symlink].sy_call = (sy_call_t *) filemon_wrapper_symlink; - sv_table[SYS_linkat].sy_call = (sy_call_t *) filemon_wrapper_linkat; + sysent[SYS_chdir].sy_call = (sy_call_t *) filemon_wrapper_chdir; + sysent[SYS_open].sy_call = (sy_call_t *) filemon_wrapper_open; + sysent[SYS_openat].sy_call = (sy_call_t *) filemon_wrapper_openat; + sysent[SYS_rename].sy_call = (sy_call_t *) filemon_wrapper_rename; + sysent[SYS_unlink].sy_call = (sy_call_t *) filemon_wrapper_unlink; + sysent[SYS_link].sy_call = (sy_call_t *) filemon_wrapper_link; + sysent[SYS_symlink].sy_call = (sy_call_t *) filemon_wrapper_symlink; + sysent[SYS_linkat].sy_call = (sy_call_t *) filemon_wrapper_linkat; #if defined(COMPAT_IA32) || defined(COMPAT_FREEBSD32) || defined(COMPAT_ARCH32) - sv_table = ia32_freebsd_sysvec.sv_table; - - sv_table[FREEBSD32_SYS_chdir].sy_call = (sy_call_t *) filemon_wrapper_chdir; - sv_table[FREEBSD32_SYS_open].sy_call = (sy_call_t *) filemon_wrapper_open; - sv_table[FREEBSD32_SYS_openat].sy_call = (sy_call_t *) filemon_wrapper_openat; - sv_table[FREEBSD32_SYS_rename].sy_call = (sy_call_t *) filemon_wrapper_rename; - sv_table[FREEBSD32_SYS_unlink].sy_call = (sy_call_t *) filemon_wrapper_unlink; - sv_table[FREEBSD32_SYS_link].sy_call = (sy_call_t *) filemon_wrapper_link; - sv_table[FREEBSD32_SYS_symlink].sy_call = (sy_call_t *) filemon_wrapper_symlink; - sv_table[FREEBSD32_SYS_linkat].sy_call = (sy_call_t *) filemon_wrapper_linkat; + freebsd32_sysent[FREEBSD32_SYS_chdir].sy_call = (sy_call_t *) filemon_wrapper_chdir; + freebsd32_sysent[FREEBSD32_SYS_open].sy_call = (sy_call_t *) filemon_wrapper_open; + freebsd32_sysent[FREEBSD32_SYS_openat].sy_call = (sy_call_t *) filemon_wrapper_openat; + freebsd32_sysent[FREEBSD32_SYS_rename].sy_call = (sy_call_t *) filemon_wrapper_rename; + freebsd32_sysent[FREEBSD32_SYS_unlink].sy_call = (sy_call_t *) filemon_wrapper_unlink; + freebsd32_sysent[FREEBSD32_SYS_link].sy_call = (sy_call_t *) filemon_wrapper_link; + freebsd32_sysent[FREEBSD32_SYS_symlink].sy_call = (sy_call_t *) filemon_wrapper_symlink; + freebsd32_sysent[FREEBSD32_SYS_linkat].sy_call = (sy_call_t *) filemon_wrapper_linkat; #endif /* COMPAT_ARCH32 */ filemon_exec_tag = EVENTHANDLER_REGISTER(process_exec, @@ -453,32 +447,25 @@ filemon_wrapper_install(void) static void filemon_wrapper_deinstall(void) { -#if defined(__LP64__) - struct sysent *sv_table = elf64_freebsd_sysvec.sv_table; -#else - struct sysent *sv_table = elf32_freebsd_sysvec.sv_table; -#endif - sv_table[SYS_chdir].sy_call = (sy_call_t *)sys_chdir; - sv_table[SYS_open].sy_call = (sy_call_t *)sys_open; - sv_table[SYS_openat].sy_call = (sy_call_t *)sys_openat; - sv_table[SYS_rename].sy_call = (sy_call_t *)sys_rename; - sv_table[SYS_unlink].sy_call = (sy_call_t *)sys_unlink; - sv_table[SYS_link].sy_call = (sy_call_t *)sys_link; - sv_table[SYS_symlink].sy_call = (sy_call_t *)sys_symlink; - sv_table[SYS_linkat].sy_call = (sy_call_t *)sys_linkat; + sysent[SYS_chdir].sy_call = (sy_call_t *)sys_chdir; + sysent[SYS_open].sy_call = (sy_call_t *)sys_open; + sysent[SYS_openat].sy_call = (sy_call_t *)sys_openat; + sysent[SYS_rename].sy_call = (sy_call_t *)sys_rename; + sysent[SYS_unlink].sy_call = (sy_call_t *)sys_unlink; + sysent[SYS_link].sy_call = (sy_call_t *)sys_link; + sysent[SYS_symlink].sy_call = (sy_call_t *)sys_symlink; + sysent[SYS_linkat].sy_call = (sy_call_t *)sys_linkat; #if defined(COMPAT_IA32) || defined(COMPAT_FREEBSD32) || defined(COMPAT_ARCH32) - sv_table = ia32_freebsd_sysvec.sv_table; - - sv_table[FREEBSD32_SYS_chdir].sy_call = (sy_call_t *)sys_chdir; - sv_table[FREEBSD32_SYS_open].sy_call = (sy_call_t *)sys_open; - sv_table[FREEBSD32_SYS_openat].sy_call = (sy_call_t *)sys_openat; - sv_table[FREEBSD32_SYS_rename].sy_call = (sy_call_t *)sys_rename; - sv_table[FREEBSD32_SYS_unlink].sy_call = (sy_call_t *)sys_unlink; - sv_table[FREEBSD32_SYS_link].sy_call = (sy_call_t *)sys_link; - sv_table[FREEBSD32_SYS_symlink].sy_call = (sy_call_t *)sys_symlink; - sv_table[FREEBSD32_SYS_linkat].sy_call = (sy_call_t *)sys_linkat; + freebsd32_sysent[FREEBSD32_SYS_chdir].sy_call = (sy_call_t *)sys_chdir; + freebsd32_sysent[FREEBSD32_SYS_open].sy_call = (sy_call_t *)sys_open; + freebsd32_sysent[FREEBSD32_SYS_openat].sy_call = (sy_call_t *)sys_openat; + freebsd32_sysent[FREEBSD32_SYS_rename].sy_call = (sy_call_t *)sys_rename; + freebsd32_sysent[FREEBSD32_SYS_unlink].sy_call = (sy_call_t *)sys_unlink; + freebsd32_sysent[FREEBSD32_SYS_link].sy_call = (sy_call_t *)sys_link; + freebsd32_sysent[FREEBSD32_SYS_symlink].sy_call = (sy_call_t *)sys_symlink; + freebsd32_sysent[FREEBSD32_SYS_linkat].sy_call = (sy_call_t *)sys_linkat; #endif /* COMPAT_ARCH32 */ EVENTHANDLER_DEREGISTER(process_exec, filemon_exec_tag);