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| author | kib <kib@FreeBSD.org> | 2010-08-17 08:55:45 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2010-08-17 08:55:45 +0000 |
| commit | d9f088a03e65b9a9a1109213406f79fc4a1b33ae (patch) | |
| tree | 33205433846af6fcb0274947c72e1f1e9432d3fe /sys/kern/imgact_elf.c | |
| parent | 407c718f42064fc833ef52171e7d791d793f2b5f (diff) | |
| download | FreeBSD-src-d9f088a03e65b9a9a1109213406f79fc4a1b33ae.zip FreeBSD-src-d9f088a03e65b9a9a1109213406f79fc4a1b33ae.tar.gz | |
Supply some useful information to the started image using ELF aux vectors.
In particular, provide pagesize and pagesizes array, the canary value
for SSP use, number of host CPUs and osreldate.
Tested by: marius (sparc64)
MFC after: 1 month
Diffstat (limited to 'sys/kern/imgact_elf.c')
| -rw-r--r-- | sys/kern/imgact_elf.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index c48e0f5..e29ddfa 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$"); #include <sys/procfs.h> #include <sys/resourcevar.h> #include <sys/sf_buf.h> +#include <sys/smp.h> #include <sys/systm.h> #include <sys/signalvar.h> #include <sys/stat.h> @@ -972,6 +973,16 @@ __elfN(freebsd_fixup)(register_t **stack_base, struct image_params *imgp) AUXARGS_ENTRY(pos, AT_BASE, args->base); if (imgp->execpathp != 0) AUXARGS_ENTRY(pos, AT_EXECPATH, imgp->execpathp); + AUXARGS_ENTRY(pos, AT_OSRELDATE, osreldate); + if (imgp->canary != 0) { + AUXARGS_ENTRY(pos, AT_CANARY, imgp->canary); + AUXARGS_ENTRY(pos, AT_CANARYLEN, imgp->canarylen); + } + AUXARGS_ENTRY(pos, AT_NCPUS, mp_ncpus); + if (imgp->pagesizes != 0) { + AUXARGS_ENTRY(pos, AT_PAGESIZES, imgp->pagesizes); + AUXARGS_ENTRY(pos, AT_PAGESIZESLEN, imgp->pagesizeslen); + } AUXARGS_ENTRY(pos, AT_NULL, 0); free(imgp->auxargs, M_TEMP); |
