From c8e43ba739d696b3ff9a7b71786de8fab92950bc Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 21 Mar 2012 17:14:49 -0700 Subject: Add x32 support to dynamic linker audit --- ChangeLog | 22 ++++++++++++++++++++++ elf/tst-auditmod1.c | 18 +++++++++++++----- elf/tst-auditmod3b.c | 18 +++++++++++++----- elf/tst-auditmod4b.c | 18 +++++++++++++----- elf/tst-auditmod5b.c | 18 +++++++++++++----- elf/tst-auditmod6b.c | 18 +++++++++++++----- elf/tst-auditmod6c.c | 18 +++++++++++++----- elf/tst-auditmod7b.c | 18 +++++++++++++----- sysdeps/generic/ldsodefs.h | 9 +++++++++ sysdeps/x86_64/bits/link.h | 20 +++++++++++++++++++- 10 files changed, 141 insertions(+), 36 deletions(-) diff --git a/ChangeLog b/ChangeLog index b060f36956..33bb4f89d0 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,25 @@ +2012-03-21 H.J. Lu + + * elf/tst-auditmod1.c: Support la_x32_gnu_pltenter and + la_x32_gnu_pltexit. + (pltexit): Cast int_retval to ptrdiff_t. + * elf/tst-auditmod3b.c: Likewise. + * elf/tst-auditmod4b.c: Likewise. + * elf/tst-auditmod5b.c: Likewise. + * elf/tst-auditmod6b.c: Likewise. + * elf/tst-auditmod6c.c: Likewise. + * elf/tst-auditmod7b.c: Likewise. + + * sysdeps/generic/ldsodefs.h (audit_ifaces): Add x32_gnu_pltenter + and x32_gnu_pltexit. + + * sysdeps/x86_64/bits/link.h: Check __x86_64__ instead of + __ELF_NATIVE_CLASS. + (La_x32_regs): New macro. + (La_x32_retval): Likewise. + (la_x32_gnu_pltenter): New function prototype. + (la_x32_gnu_pltexit): Likewise. + 2012-03-21 Andreas Schwab * sysdeps/ieee754/ldbl-128ibm/e_powl.c (huge, tiny): Correct diff --git a/elf/tst-auditmod1.c b/elf/tst-auditmod1.c index 69da278f28..67fc758ac3 100644 --- a/elf/tst-auditmod1.c +++ b/elf/tst-auditmod1.c @@ -109,10 +109,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, # define La_retval La_i86_retval # define int_retval lrv_eax #elif defined __x86_64__ -# define pltenter la_x86_64_gnu_pltenter -# define pltexit la_x86_64_gnu_pltexit -# define La_regs La_x86_64_regs -# define La_retval La_x86_64_retval +# ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +# else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +# endif # define int_retval lrv_rax #elif defined __powerpc__ && __WORDSIZE == 32 # define pltenter la_ppc32_gnu_pltenter @@ -188,7 +195,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); return 0; } diff --git a/elf/tst-auditmod3b.c b/elf/tst-auditmod3b.c index 388ed6e49c..921eaca55a 100644 --- a/elf/tst-auditmod3b.c +++ b/elf/tst-auditmod3b.c @@ -105,10 +105,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, return sym->st_value; } -#define pltenter la_x86_64_gnu_pltenter -#define pltexit la_x86_64_gnu_pltexit -#define La_regs La_x86_64_regs -#define La_retval La_x86_64_retval +#ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +#else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +#endif #define int_retval lrv_rax #include @@ -140,7 +147,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); __m128i xmm = _mm_set1_epi32 (-1); asm volatile ("movdqa %0, %%xmm0" : : "x" (xmm) : "xmm0" ); diff --git a/elf/tst-auditmod4b.c b/elf/tst-auditmod4b.c index 761d97ce9d..75e85582bd 100644 --- a/elf/tst-auditmod4b.c +++ b/elf/tst-auditmod4b.c @@ -94,10 +94,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, return sym->st_value; } -#define pltenter la_x86_64_gnu_pltenter -#define pltexit la_x86_64_gnu_pltexit -#define La_regs La_x86_64_regs -#define La_retval La_x86_64_retval +#ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +#else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +#endif #define int_retval lrv_rax #include @@ -177,7 +184,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); #ifdef __AVX__ if (check_avx () && strcmp (symname, "audit_test") == 0) diff --git a/elf/tst-auditmod5b.c b/elf/tst-auditmod5b.c index 7e1e941126..d2443c8d20 100644 --- a/elf/tst-auditmod5b.c +++ b/elf/tst-auditmod5b.c @@ -95,10 +95,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, return sym->st_value; } -#define pltenter la_x86_64_gnu_pltenter -#define pltexit la_x86_64_gnu_pltexit -#define La_regs La_x86_64_regs -#define La_retval La_x86_64_retval +#ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +#else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +#endif #define int_retval lrv_rax #include @@ -150,7 +157,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); __m128i xmm; diff --git a/elf/tst-auditmod6b.c b/elf/tst-auditmod6b.c index a7a60b9927..b00dcd7c2e 100644 --- a/elf/tst-auditmod6b.c +++ b/elf/tst-auditmod6b.c @@ -94,10 +94,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, return sym->st_value; } -#define pltenter la_x86_64_gnu_pltenter -#define pltexit la_x86_64_gnu_pltexit -#define La_regs La_x86_64_regs -#define La_retval La_x86_64_retval +#ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +#else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +#endif #define int_retval lrv_rax #include @@ -179,7 +186,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); #ifdef __AVX__ if (check_avx () && strcmp (symname, "audit_test") == 0) diff --git a/elf/tst-auditmod6c.c b/elf/tst-auditmod6c.c index e0b5ac2319..a78c913963 100644 --- a/elf/tst-auditmod6c.c +++ b/elf/tst-auditmod6c.c @@ -94,10 +94,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, return sym->st_value; } -#define pltenter la_x86_64_gnu_pltenter -#define pltexit la_x86_64_gnu_pltexit -#define La_regs La_x86_64_regs -#define La_retval La_x86_64_retval +#ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +#else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +#endif #define int_retval lrv_rax #include @@ -185,7 +192,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); #ifdef __AVX__ if (check_avx () && strcmp (symname, "audit_test") == 0) diff --git a/elf/tst-auditmod7b.c b/elf/tst-auditmod7b.c index a27d38540e..d761149a2f 100644 --- a/elf/tst-auditmod7b.c +++ b/elf/tst-auditmod7b.c @@ -94,10 +94,17 @@ la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, return sym->st_value; } -#define pltenter la_x86_64_gnu_pltenter -#define pltexit la_x86_64_gnu_pltexit -#define La_regs La_x86_64_regs -#define La_retval La_x86_64_retval +#ifdef __LP64__ +# define pltenter la_x86_64_gnu_pltenter +# define pltexit la_x86_64_gnu_pltexit +# define La_regs La_x86_64_regs +# define La_retval La_x86_64_retval +#else +# define pltenter la_x32_gnu_pltenter +# define pltexit la_x32_gnu_pltexit +# define La_regs La_x32_regs +# define La_retval La_x32_retval +#endif #define int_retval lrv_rax #include @@ -177,7 +184,8 @@ pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, const char *symname) { printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n", - symname, (long int) sym->st_value, ndx, outregs->int_retval); + symname, (long int) sym->st_value, ndx, + (ptrdiff_t) outregs->int_retval); #ifdef __AVX__ if (check_avx () && strcmp (symname, "audit_test") == 0) diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index f4531b412a..d4cbabab51 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -225,6 +225,10 @@ struct audit_ifaces uintptr_t *, struct La_x86_64_regs *, unsigned int *, const char *name, long int *framesizep); + Elf32_Addr (*x32_gnu_pltenter) (Elf32_Sym *, unsigned int, uintptr_t *, + uintptr_t *, struct La_x32_regs *, + unsigned int *, const char *name, + long int *framesizep); Elf32_Addr (*ppc32_gnu_pltenter) (Elf32_Sym *, unsigned int, uintptr_t *, uintptr_t *, struct La_ppc32_regs *, unsigned int *, const char *name, @@ -269,6 +273,11 @@ struct audit_ifaces const struct La_x86_64_regs *, struct La_x86_64_retval *, const char *); + unsigned int (*x32_gnu_pltexit) (Elf32_Sym *, unsigned int, uintptr_t *, + uintptr_t *, + const struct La_x32_regs *, + struct La_x86_64_retval *, + const char *); unsigned int (*ppc32_gnu_pltexit) (Elf32_Sym *, unsigned int, uintptr_t *, uintptr_t *, const struct La_ppc32_regs *, diff --git a/sysdeps/x86_64/bits/link.h b/sysdeps/x86_64/bits/link.h index c79eda846d..fa2091085f 100644 --- a/sysdeps/x86_64/bits/link.h +++ b/sysdeps/x86_64/bits/link.h @@ -20,7 +20,7 @@ #endif -#if __ELF_NATIVE_CLASS == 32 +#ifndef __x86_64__ /* Registers for entry into PLT on IA-32. */ typedef struct La_i86_regs { @@ -105,6 +105,8 @@ typedef struct La_x86_64_retval La_x86_64_vector lrv_vector1; } La_x86_64_retval; +#define La_x32_regs La_x86_64_regs +#define La_x32_retval La_x86_64_retval __BEGIN_DECLS @@ -124,6 +126,22 @@ extern unsigned int la_x86_64_gnu_pltexit (Elf64_Sym *__sym, La_x86_64_retval *__outregs, const char *__symname); +extern Elf32_Addr la_x32_gnu_pltenter (Elf32_Sym *__sym, + unsigned int __ndx, + uintptr_t *__refcook, + uintptr_t *__defcook, + La_x32_regs *__regs, + unsigned int *__flags, + const char *__symname, + long int *__framesizep); +extern unsigned int la_x32_gnu_pltexit (Elf32_Sym *__sym, + unsigned int __ndx, + uintptr_t *__refcook, + uintptr_t *__defcook, + const La_x32_regs *__inregs, + La_x32_retval *__outregs, + const char *__symname); + __END_DECLS #endif -- cgit v1.2.3