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[135.23.175.80]) by smtp.gmail.com with ESMTPSA id y7sm12963722ilu.55.2022.02.01.08.00.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 01 Feb 2022 08:00:07 -0800 (PST) Message-ID: <235f8843-4b50-c495-0fe9-91522652414d@redhat.com> Date: Tue, 1 Feb 2022 11:00:06 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH v13 4/4] elf: Fix runtime linker auditing on aarch64 (BZ #26643) To: Adhemerval Zanella , libc-alpha@sourceware.org, jma14 Cc: John Mellor-Crummey , Ben Woodard , Szabolcs Nagy References: <20220201144636.2129852-1-adhemerval.zanella@linaro.org> <20220201144636.2129852-5-adhemerval.zanella@linaro.org> From: Carlos O'Donell Organization: Red Hat In-Reply-To: <20220201144636.2129852-5-adhemerval.zanella@linaro.org> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-12.0 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, NICE_REPLY_A, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Feb 2022 16:00:18 -0000 On 2/1/22 09:46, Adhemerval Zanella wrote: > From: Ben Woodard > > The rtld audit support show two problems on aarch64: > > 1. _dl_runtime_resolve does not preserve x8, the indirect result > location register, which might generate wrong result calls > depending of the function signature. > > 2. The NEON Q registers pushed onto the stack by _dl_runtime_resolve > were twice the size of D registers extracted from the stack frame by > _dl_runtime_profile. > > While 2. might result in wrong information passed on the PLT tracing, > 1. generates wrong runtime behaviour. > > The aarch64 rtld audit support is changed to: > > * Both La_aarch64_regs and La_aarch64_retval are expanded to include > both x8 and the full sized NEON V registers, as defined by the > ABI. > > * dl_runtime_profile needed to extract registers saved by > _dl_runtime_resolve and put them into the new correctly sized > La_aarch64_regs structure. > > * The LAV_CURRENT check is change to only accept new audit modules > to avoid the undefined behavior of not save/restore x8. > > * Different than other architectures, audit modules older than > LAV_CURRENT are rejected (both La_aarch64_regs and La_aarch64_retval > changed their layout and there are no requirements to support multiple > audit interface with the inherent aarch64 issues). > > * A new field is also reserved on both La_aarch64_regs and > La_aarch64_retval to support variant pcs symbols. > > Similar to x86, a new La_aarch64_vector type to represent the NEON > register is added on the La_aarch64_regs (so each type can be accessed > directly). > > Since LAV_CURRENT was already bumped to support bind-now, there is > no need to increase it again. > > Checked on aarch64-linux-gnu. > OK for glibc 2.35. Please push. Tested on x86_64 and i686 without any regressions (as expected for an aarch64 change). Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell > Co-authored-by: Adhemerval Zanella > Reviewed-by: Szabolcs Nagy > --- > NEWS | 4 + > elf/rtld.c | 3 +- > sysdeps/aarch64/Makefile | 20 ++++ > sysdeps/aarch64/bits/link.h | 26 +++-- > sysdeps/aarch64/dl-audit-check.h | 28 +++++ > sysdeps/aarch64/dl-link.sym | 6 +- > sysdeps/aarch64/dl-trampoline.S | 81 +++++++++----- > sysdeps/aarch64/tst-audit26.c | 37 +++++++ > sysdeps/aarch64/tst-audit26mod.c | 33 ++++++ > sysdeps/aarch64/tst-audit26mod.h | 50 +++++++++ > sysdeps/aarch64/tst-audit27.c | 64 +++++++++++ > sysdeps/aarch64/tst-audit27mod.c | 95 ++++++++++++++++ > sysdeps/aarch64/tst-audit27mod.h | 67 ++++++++++++ > sysdeps/aarch64/tst-auditmod26.c | 103 ++++++++++++++++++ > sysdeps/aarch64/tst-auditmod27.c | 180 +++++++++++++++++++++++++++++++ > sysdeps/generic/dl-audit-check.h | 23 ++++ > 16 files changed, 779 insertions(+), 41 deletions(-) > create mode 100644 sysdeps/aarch64/dl-audit-check.h > create mode 100644 sysdeps/aarch64/tst-audit26.c > create mode 100644 sysdeps/aarch64/tst-audit26mod.c > create mode 100644 sysdeps/aarch64/tst-audit26mod.h > create mode 100644 sysdeps/aarch64/tst-audit27.c > create mode 100644 sysdeps/aarch64/tst-audit27mod.c > create mode 100644 sysdeps/aarch64/tst-audit27mod.h > create mode 100644 sysdeps/aarch64/tst-auditmod26.c > create mode 100644 sysdeps/aarch64/tst-auditmod27.c > create mode 100644 sysdeps/generic/dl-audit-check.h > > diff --git a/NEWS b/NEWS > index 34151fb3f3..f26c3ba52f 100644 > --- a/NEWS > +++ b/NEWS > @@ -172,6 +172,10 @@ Deprecated and removed features, and other changes affecting compatibility: > proper bind-now support. The loader now advertises via the la_symbind > flags that PLT trace is not possible. > > +* The audit interface on aarch64 is extended to support both the indirect > + result location register (x8) and NEON Q register. Old audit modules are > + rejected by the loader. > + > Changes to build and runtime requirements: > > [Add changes to build and runtime requirements here] > diff --git a/elf/rtld.c b/elf/rtld.c > index 10436f7034..8dafaf61f4 100644 > --- a/elf/rtld.c > +++ b/elf/rtld.c > @@ -52,6 +52,7 @@ > #include > #include > #include > +#include > > #include > > @@ -1000,7 +1001,7 @@ file=%s [%lu]; audit interface function la_version returned zero; ignored.\n", > return; > } > > - if (lav > LAV_CURRENT) > + if (!_dl_audit_check_version (lav)) > { > _dl_debug_printf ("\ > ERROR: audit interface '%s' requires version %d (maximum supported version %d); ignored.\n", > diff --git a/sysdeps/aarch64/Makefile b/sysdeps/aarch64/Makefile > index 7c66fb97aa..7183895d04 100644 > --- a/sysdeps/aarch64/Makefile > +++ b/sysdeps/aarch64/Makefile > @@ -10,6 +10,26 @@ endif > > ifeq ($(subdir),elf) > sysdep-dl-routines += dl-bti > + > +tests += tst-audit26 \ > + tst-audit27 > + > +modules-names += \ > + tst-audit26mod \ > + tst-auditmod26 \ > + tst-audit27mod \ > + tst-auditmod27 > + > +$(objpfx)tst-audit26: $(objpfx)tst-audit26mod.so \ > + $(objpfx)tst-auditmod26.so > +LDFLAGS-tst-audit26 += -Wl,-z,lazy > +tst-audit26-ENV = LD_AUDIT=$(objpfx)tst-auditmod26.so > + > +$(objpfx)tst-audit27: $(objpfx)tst-audit27mod.so \ > + $(objpfx)tst-auditmod27.so > +$(objpfx)tst-audit27mod.so: $(libsupport) > +LDFLAGS-tst-audit27 += -Wl,-z,lazy > +tst-audit27-ENV = LD_AUDIT=$(objpfx)tst-auditmod27.so > endif > > ifeq ($(subdir),elf) > diff --git a/sysdeps/aarch64/bits/link.h b/sysdeps/aarch64/bits/link.h > index e64f36d3f3..2479abc4fb 100644 > --- a/sysdeps/aarch64/bits/link.h > +++ b/sysdeps/aarch64/bits/link.h > @@ -20,23 +20,31 @@ > # error "Never include directly; use instead." > #endif > > +typedef union > +{ > + float s; > + double d; > + long double q; > +} La_aarch64_vector; > + > /* Registers for entry into PLT on AArch64. */ > typedef struct La_aarch64_regs > { > - uint64_t lr_xreg[8]; > - uint64_t lr_dreg[8]; > - uint64_t lr_sp; > - uint64_t lr_lr; > + uint64_t lr_xreg[9]; > + La_aarch64_vector lr_vreg[8]; > + uint64_t lr_sp; > + uint64_t lr_lr; > + void *lr_vpcs; > } La_aarch64_regs; > > /* Return values for calls from PLT on AArch64. */ > typedef struct La_aarch64_retval > { > - /* Up to two integer registers can be used for a return value. */ > - uint64_t lrv_xreg[2]; > - /* Up to four D registers can be used for a return value. */ > - uint64_t lrv_dreg[4]; > - > + /* Up to eight integer registers can be used for a return value. */ > + uint64_t lrv_xreg[8]; > + /* Up to eight V registers can be used for a return value. */ > + La_aarch64_vector lrv_vreg[8]; > + void *lrv_vpcs; > } La_aarch64_retval; > __BEGIN_DECLS > > diff --git a/sysdeps/aarch64/dl-audit-check.h b/sysdeps/aarch64/dl-audit-check.h > new file mode 100644 > index 0000000000..e324339a1d > --- /dev/null > +++ b/sysdeps/aarch64/dl-audit-check.h > @@ -0,0 +1,28 @@ > +/* rtld-audit version check. AArch64 version. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +static inline bool > +_dl_audit_check_version (unsigned int lav) > +{ > + /* Audit version 1 do not save x8 or NEON registers, which required > + changing La_aarch64_regs and La_aarch64_retval layout (BZ#26643). The > + missing indirect result save/restore makes _dl_runtime_profile > + potentially trigger undefined behavior if the function returns a large > + struct (even when PLT trace is not requested). */ > + return lav == LAV_CURRENT; > +} > diff --git a/sysdeps/aarch64/dl-link.sym b/sysdeps/aarch64/dl-link.sym > index d67d28b40c..cb4dcdcbed 100644 > --- a/sysdeps/aarch64/dl-link.sym > +++ b/sysdeps/aarch64/dl-link.sym > @@ -7,9 +7,11 @@ DL_SIZEOF_RG sizeof(struct La_aarch64_regs) > DL_SIZEOF_RV sizeof(struct La_aarch64_retval) > > DL_OFFSET_RG_X0 offsetof(struct La_aarch64_regs, lr_xreg) > -DL_OFFSET_RG_D0 offsetof(struct La_aarch64_regs, lr_dreg) > +DL_OFFSET_RG_V0 offsetof(struct La_aarch64_regs, lr_vreg) > DL_OFFSET_RG_SP offsetof(struct La_aarch64_regs, lr_sp) > DL_OFFSET_RG_LR offsetof(struct La_aarch64_regs, lr_lr) > +DL_OFFSET_RG_VPCS offsetof(struct La_aarch64_regs, lr_vpcs) > > DL_OFFSET_RV_X0 offsetof(struct La_aarch64_retval, lrv_xreg) > -DL_OFFSET_RV_D0 offsetof(struct La_aarch64_retval, lrv_dreg) > +DL_OFFSET_RV_V0 offsetof(struct La_aarch64_retval, lrv_vreg) > +DL_OFFSET_RV_VPCS offsetof(struct La_aarch64_retval, lrv_vpcs) > diff --git a/sysdeps/aarch64/dl-trampoline.S b/sysdeps/aarch64/dl-trampoline.S > index a403863ef9..909b208578 100644 > --- a/sysdeps/aarch64/dl-trampoline.S > +++ b/sysdeps/aarch64/dl-trampoline.S > @@ -45,7 +45,8 @@ _dl_runtime_resolve: > > cfi_rel_offset (lr, 8) > > - /* Save arguments. */ > + /* Note: Saving x9 is not required by the ABI but the assembler requires > + the immediate values of operand 3 to be a multiple of 16 */ > stp x8, x9, [sp, #-(80+8*16)]! > cfi_adjust_cfa_offset (80+8*16) > cfi_rel_offset (x8, 0) > @@ -142,7 +143,7 @@ _dl_runtime_profile: > Stack frame layout: > [sp, #...] lr > [sp, #...] &PLTGOT[n] > - [sp, #96] La_aarch64_regs > + [sp, #256] La_aarch64_regs > [sp, #48] La_aarch64_retval > [sp, #40] frame size return from pltenter > [sp, #32] dl_profile_call saved x1 > @@ -183,19 +184,25 @@ _dl_runtime_profile: > stp x6, x7, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*3] > cfi_rel_offset (x6, OFFSET_RG + DL_OFFSET_RG_X0 + 16*3 + 0) > cfi_rel_offset (x7, OFFSET_RG + DL_OFFSET_RG_X0 + 16*3 + 8) > - > - stp d0, d1, [X29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*0] > - cfi_rel_offset (d0, OFFSET_RG + DL_OFFSET_RG_D0 + 16*0) > - cfi_rel_offset (d1, OFFSET_RG + DL_OFFSET_RG_D0 + 16*0 + 8) > - stp d2, d3, [X29, #OFFSET_RG+ DL_OFFSET_RG_D0 + 16*1] > - cfi_rel_offset (d2, OFFSET_RG + DL_OFFSET_RG_D0 + 16*1 + 0) > - cfi_rel_offset (d3, OFFSET_RG + DL_OFFSET_RG_D0 + 16*1 + 8) > - stp d4, d5, [X29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*2] > - cfi_rel_offset (d4, OFFSET_RG + DL_OFFSET_RG_D0 + 16*2 + 0) > - cfi_rel_offset (d5, OFFSET_RG + DL_OFFSET_RG_D0 + 16*2 + 8) > - stp d6, d7, [X29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*3] > - cfi_rel_offset (d6, OFFSET_RG + DL_OFFSET_RG_D0 + 16*3 + 0) > - cfi_rel_offset (d7, OFFSET_RG + DL_OFFSET_RG_D0 + 16*3 + 8) > + str x8, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*4 + 0] > + cfi_rel_offset (x8, OFFSET_RG + DL_OFFSET_RG_X0 + 16*4 + 0) > + /* Note 8 bytes of padding is in the stack frame for alignment */ > + > + stp q0, q1, [X29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*0] > + cfi_rel_offset (q0, OFFSET_RG + DL_OFFSET_RG_V0 + 32*0) > + cfi_rel_offset (q1, OFFSET_RG + DL_OFFSET_RG_V0 + 32*0 + 16) > + stp q2, q3, [X29, #OFFSET_RG+ DL_OFFSET_RG_V0 + 32*1] > + cfi_rel_offset (q2, OFFSET_RG + DL_OFFSET_RG_V0 + 32*1 + 0) > + cfi_rel_offset (q3, OFFSET_RG + DL_OFFSET_RG_V0 + 32*1 + 16) > + stp q4, q5, [X29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*2] > + cfi_rel_offset (q4, OFFSET_RG + DL_OFFSET_RG_V0 + 32*2 + 0) > + cfi_rel_offset (q5, OFFSET_RG + DL_OFFSET_RG_V0 + 32*2 + 16) > + stp q6, q7, [X29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*3] > + cfi_rel_offset (q6, OFFSET_RG + DL_OFFSET_RG_V0 + 32*3 + 0) > + cfi_rel_offset (q7, OFFSET_RG + DL_OFFSET_RG_V0 + 32*3 + 16) > + > + /* No APCS extension supported. */ > + str xzr, [X29, #OFFSET_RG + DL_OFFSET_RG_VPCS] > > add x0, x29, #SF_SIZE + 16 > ldr x1, [x29, #OFFSET_LR] > @@ -234,10 +241,11 @@ _dl_runtime_profile: > ldp x2, x3, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*1] > ldp x4, x5, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*2] > ldp x6, x7, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*3] > - ldp d0, d1, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*0] > - ldp d2, d3, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*1] > - ldp d4, d5, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*2] > - ldp d6, d7, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*3] > + ldr x8, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*4] > + ldp q0, q1, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*0] > + ldp q2, q3, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*1] > + ldp q4, q5, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*2] > + ldp q6, q7, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*3] > > cfi_def_cfa_register (sp) > ldp x29, x30, [x29, #0] > @@ -280,14 +288,22 @@ _dl_runtime_profile: > ldp x2, x3, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*1] > ldp x4, x5, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*2] > ldp x6, x7, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*3] > - ldp d0, d1, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*0] > - ldp d2, d3, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*1] > - ldp d4, d5, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*2] > - ldp d6, d7, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*3] > + ldr x8, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*4] > + ldp q0, q1, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*0] > + ldp q2, q3, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*1] > + ldp q4, q5, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*2] > + ldp q6, q7, [x29, #OFFSET_RG + DL_OFFSET_RG_V0 + 32*3] > blr ip0 > - stp x0, x1, [x29, #OFFSET_RV + DL_OFFSET_RV_X0] > - stp d0, d1, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*0] > - stp d2, d3, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*1] > + stp x0, x1, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*0] > + stp x2, x3, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*1] > + stp x4, x5, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*2] > + stp x6, x7, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*3] > + str x8, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*4] > + stp q0, q1, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*0] > + stp q2, q3, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*1] > + stp q4, q5, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*2] > + stp q6, q7, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*3] > + str xzr, [X29, #OFFSET_RV + DL_OFFSET_RG_VPCS] > > /* Setup call to pltexit */ > ldp x0, x1, [x29, #OFFSET_SAVED_CALL_X0] > @@ -295,9 +311,16 @@ _dl_runtime_profile: > add x3, x29, #OFFSET_RV > bl _dl_audit_pltexit > > - ldp x0, x1, [x29, #OFFSET_RV + DL_OFFSET_RV_X0] > - ldp d0, d1, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*0] > - ldp d2, d3, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*1] > + ldp x0, x1, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*0] > + ldp x2, x3, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*1] > + ldp x4, x5, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*2] > + ldp x6, x7, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*3] > + ldr x8, [x29, #OFFSET_RV + DL_OFFSET_RV_X0 + 16*4] > + ldp q0, q1, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*0] > + ldp q2, q3, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*1] > + ldp q4, q5, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*2] > + ldp q6, q7, [x29, #OFFSET_RV + DL_OFFSET_RV_V0 + 32*3] > + > /* LR from within La_aarch64_reg */ > ldr lr, [x29, #OFFSET_RG + DL_OFFSET_RG_LR] > cfi_restore(lr) > diff --git a/sysdeps/aarch64/tst-audit26.c b/sysdeps/aarch64/tst-audit26.c > new file mode 100644 > index 0000000000..46de8acd21 > --- /dev/null > +++ b/sysdeps/aarch64/tst-audit26.c > @@ -0,0 +1,37 @@ > +/* Check LD_AUDIT for aarch64 ABI specifics. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#include > +#include > +#include > +#include "tst-audit26mod.h" > + > +int > +do_test (void) > +{ > + /* Returning a large struct uses 'x8' as indirect result location. */ > + struct large_struct r = tst_audit26_func (ARG1, ARG2, ARG3); > + > + struct large_struct e = set_large_struct (ARG1, ARG2, ARG3); > + > + TEST_COMPARE_BLOB (r.a, sizeof (r.a), e.a, sizeof (e.a)); > + > + return 0; > +} > + > +#include > diff --git a/sysdeps/aarch64/tst-audit26mod.c b/sysdeps/aarch64/tst-audit26mod.c > new file mode 100644 > index 0000000000..67d5ffce72 > --- /dev/null > +++ b/sysdeps/aarch64/tst-audit26mod.c > @@ -0,0 +1,33 @@ > +/* Check LD_AUDIT for aarch64 ABI specifics. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#include > +#include "tst-audit26mod.h" > + > +struct large_struct > +tst_audit26_func (char a, short b, long int c) > +{ > + if (a != ARG1) > + abort (); > + if (b != ARG2) > + abort (); > + if (c != ARG3) > + abort (); > + > + return set_large_struct (a, b, c); > +} > diff --git a/sysdeps/aarch64/tst-audit26mod.h b/sysdeps/aarch64/tst-audit26mod.h > new file mode 100644 > index 0000000000..f80409f96b > --- /dev/null > +++ b/sysdeps/aarch64/tst-audit26mod.h > @@ -0,0 +1,50 @@ > +/* Check LD_AUDIT for aarch64 specific ABI. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#ifndef _TST_AUDIT27MOD_H > +#define _TST_AUDIT27MOD_H 1 > + > +#include > + > +struct large_struct > +{ > + char a[16]; > + short b[8]; > + long int c[4]; > +}; > + > +static inline struct large_struct > +set_large_struct (char a, short b, long int c) > +{ > + struct large_struct r; > + for (int i = 0; i < array_length (r.a); i++) > + r.a[i] = a; > + for (int i = 0; i < array_length (r.b); i++) > + r.b[i] = b; > + for (int i = 0; i < array_length (r.c); i++) > + r.c[i] = c; > + return r; > +} > + > +#define ARG1 0x12 > +#define ARG2 0x1234 > +#define ARG3 0x12345678 > + > +struct large_struct tst_audit26_func (char a, short b, long int c); > + > +#endif > diff --git a/sysdeps/aarch64/tst-audit27.c b/sysdeps/aarch64/tst-audit27.c > new file mode 100644 > index 0000000000..5ebc09771f > --- /dev/null > +++ b/sysdeps/aarch64/tst-audit27.c > @@ -0,0 +1,64 @@ > +/* Check LD_AUDIT for aarch64 ABI specifics. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#include > +#include > +#include > +#include "tst-audit27mod.h" > + > +int > +do_test (void) > +{ > + { > + float r = tst_audit27_func_float (FUNC_FLOAT_ARG0, FUNC_FLOAT_ARG1, > + FUNC_FLOAT_ARG2, FUNC_FLOAT_ARG3, > + FUNC_FLOAT_ARG4, FUNC_FLOAT_ARG5, > + FUNC_FLOAT_ARG6, FUNC_FLOAT_ARG7); > + if (r != FUNC_FLOAT_RET) > + FAIL_EXIT1 ("tst_audit27_func_float() returned %a, expected %a", > + r, FUNC_FLOAT_RET); > + } > + > + { > + double r = tst_audit27_func_double (FUNC_DOUBLE_ARG0, FUNC_DOUBLE_ARG1, > + FUNC_DOUBLE_ARG2, FUNC_DOUBLE_ARG3, > + FUNC_DOUBLE_ARG4, FUNC_DOUBLE_ARG5, > + FUNC_DOUBLE_ARG6, FUNC_DOUBLE_ARG7); > + if (r != FUNC_DOUBLE_RET) > + FAIL_EXIT1 ("tst_audit27_func_double() returned %la, expected %la", > + r, FUNC_DOUBLE_RET); > + } > + > + { > + long double r = tst_audit27_func_ldouble (FUNC_LDOUBLE_ARG0, > + FUNC_LDOUBLE_ARG1, > + FUNC_LDOUBLE_ARG2, > + FUNC_LDOUBLE_ARG3, > + FUNC_LDOUBLE_ARG4, > + FUNC_LDOUBLE_ARG5, > + FUNC_LDOUBLE_ARG6, > + FUNC_LDOUBLE_ARG7); > + if (r != FUNC_LDOUBLE_RET) > + FAIL_EXIT1 ("tst_audit27_func_ldouble() returned %La, expected %La", > + r, FUNC_LDOUBLE_RET); > + } > + > + return 0; > +} > + > +#include > diff --git a/sysdeps/aarch64/tst-audit27mod.c b/sysdeps/aarch64/tst-audit27mod.c > new file mode 100644 > index 0000000000..922b518f0a > --- /dev/null > +++ b/sysdeps/aarch64/tst-audit27mod.c > @@ -0,0 +1,95 @@ > +/* Check LD_AUDIT for aarch64 ABI specifics. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#include > +#include > +#include > +#include "tst-audit27mod.h" > + > +float > +tst_audit27_func_float (float a0, float a1, float a2, float a3, float a4, > + float a5, float a6, float a7) > +{ > + if (a0 != FUNC_FLOAT_ARG0) > + FAIL_EXIT1 ("a0: %a != %a", a0, FUNC_FLOAT_ARG0); > + if (a1 != FUNC_FLOAT_ARG1) > + FAIL_EXIT1 ("a1: %a != %a", a1, FUNC_FLOAT_ARG1); > + if (a2 != FUNC_FLOAT_ARG2) > + FAIL_EXIT1 ("a2: %a != %a", a2, FUNC_FLOAT_ARG2); > + if (a3 != FUNC_FLOAT_ARG3) > + FAIL_EXIT1 ("a3: %a != %a", a3, FUNC_FLOAT_ARG3); > + if (a4 != FUNC_FLOAT_ARG4) > + FAIL_EXIT1 ("a4: %a != %a", a4, FUNC_FLOAT_ARG4); > + if (a5 != FUNC_FLOAT_ARG5) > + FAIL_EXIT1 ("a5: %a != %a", a5, FUNC_FLOAT_ARG5); > + if (a6 != FUNC_FLOAT_ARG6) > + FAIL_EXIT1 ("a6: %a != %a", a6, FUNC_FLOAT_ARG6); > + if (a7 != FUNC_FLOAT_ARG7) > + FAIL_EXIT1 ("a7: %a != %a", a7, FUNC_FLOAT_ARG7); > + > + return FUNC_FLOAT_RET; > +} > + > +double > +tst_audit27_func_double (double a0, double a1, double a2, double a3, double a4, > + double a5, double a6, double a7) > +{ > + if (a0 != FUNC_DOUBLE_ARG0) > + FAIL_EXIT1 ("a0: %la != %la", a0, FUNC_DOUBLE_ARG0); > + if (a1 != FUNC_DOUBLE_ARG1) > + FAIL_EXIT1 ("a1: %la != %la", a1, FUNC_DOUBLE_ARG1); > + if (a2 != FUNC_DOUBLE_ARG2) > + FAIL_EXIT1 ("a2: %la != %la", a2, FUNC_DOUBLE_ARG2); > + if (a3 != FUNC_DOUBLE_ARG3) > + FAIL_EXIT1 ("a3: %la != %la", a3, FUNC_DOUBLE_ARG3); > + if (a4 != FUNC_DOUBLE_ARG4) > + FAIL_EXIT1 ("a4: %la != %la", a4, FUNC_DOUBLE_ARG4); > + if (a5 != FUNC_DOUBLE_ARG5) > + FAIL_EXIT1 ("a5: %la != %la", a5, FUNC_DOUBLE_ARG5); > + if (a6 != FUNC_DOUBLE_ARG6) > + FAIL_EXIT1 ("a6: %la != %la", a6, FUNC_DOUBLE_ARG6); > + if (a7 != FUNC_DOUBLE_ARG7) > + FAIL_EXIT1 ("a7: %la != %la", a7, FUNC_DOUBLE_ARG7); > + > + return FUNC_DOUBLE_RET; > +} > + > +long double > +tst_audit27_func_ldouble (long double a0, long double a1, long double a2, > + long double a3, long double a4, long double a5, > + long double a6, long double a7) > +{ > + if (a0 != FUNC_LDOUBLE_ARG0) > + FAIL_EXIT1 ("a0: %La != %La", a0, FUNC_LDOUBLE_ARG0); > + if (a1 != FUNC_LDOUBLE_ARG1) > + FAIL_EXIT1 ("a1: %La != %La", a1, FUNC_LDOUBLE_ARG1); > + if (a2 != FUNC_LDOUBLE_ARG2) > + FAIL_EXIT1 ("a2: %La != %La", a2, FUNC_LDOUBLE_ARG2); > + if (a3 != FUNC_LDOUBLE_ARG3) > + FAIL_EXIT1 ("a3: %La != %La", a3, FUNC_LDOUBLE_ARG3); > + if (a4 != FUNC_LDOUBLE_ARG4) > + FAIL_EXIT1 ("a4: %La != %La", a4, FUNC_LDOUBLE_ARG4); > + if (a5 != FUNC_LDOUBLE_ARG5) > + FAIL_EXIT1 ("a5: %La != %La", a5, FUNC_LDOUBLE_ARG5); > + if (a6 != FUNC_LDOUBLE_ARG6) > + FAIL_EXIT1 ("a6: %La != %La", a6, FUNC_LDOUBLE_ARG6); > + if (a7 != FUNC_LDOUBLE_ARG7) > + FAIL_EXIT1 ("a7: %La != %La", a7, FUNC_LDOUBLE_ARG7); > + > + return FUNC_LDOUBLE_RET; > +} > diff --git a/sysdeps/aarch64/tst-audit27mod.h b/sysdeps/aarch64/tst-audit27mod.h > new file mode 100644 > index 0000000000..1709d222ca > --- /dev/null > +++ b/sysdeps/aarch64/tst-audit27mod.h > @@ -0,0 +1,67 @@ > +/* Check LD_AUDIT for aarch64 specific ABI. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#ifndef _TST_AUDIT27MOD_H > +#define _TST_AUDIT27MOD_H 1 > + > +#include > + > +#define FUNC_FLOAT_ARG0 FLT_MIN > +#define FUNC_FLOAT_ARG1 FLT_MAX > +#define FUNC_FLOAT_ARG2 FLT_EPSILON > +#define FUNC_FLOAT_ARG3 FLT_TRUE_MIN > +#define FUNC_FLOAT_ARG4 0.0f > +#define FUNC_FLOAT_ARG5 1.0f > +#define FUNC_FLOAT_ARG6 2.0f > +#define FUNC_FLOAT_ARG7 3.0f > +#define FUNC_FLOAT_RET 4.0f > + > +float > +tst_audit27_func_float (float a0, float a1, float a2, float a3, float a4, > + float a5, float a6, float a7); > + > +#define FUNC_DOUBLE_ARG0 DBL_MIN > +#define FUNC_DOUBLE_ARG1 DBL_MAX > +#define FUNC_DOUBLE_ARG2 DBL_EPSILON > +#define FUNC_DOUBLE_ARG3 DBL_TRUE_MIN > +#define FUNC_DOUBLE_ARG4 0.0 > +#define FUNC_DOUBLE_ARG5 1.0 > +#define FUNC_DOUBLE_ARG6 2.0 > +#define FUNC_DOUBLE_ARG7 3.0 > +#define FUNC_DOUBLE_RET 0x1.fffffe0000001p+127 > + > +double > +tst_audit27_func_double (double a0, double a1, double a2, double a3, double a4, > + double a5, double a6, double a7); > + > +#define FUNC_LDOUBLE_ARG0 DBL_MAX + 1.0L > +#define FUNC_LDOUBLE_ARG1 DBL_MAX + 2.0L > +#define FUNC_LDOUBLE_ARG2 DBL_MAX + 3.0L > +#define FUNC_LDOUBLE_ARG3 DBL_MAX + 4.0L > +#define FUNC_LDOUBLE_ARG4 DBL_MAX + 5.0L > +#define FUNC_LDOUBLE_ARG5 DBL_MAX + 6.0L > +#define FUNC_LDOUBLE_ARG6 DBL_MAX + 7.0L > +#define FUNC_LDOUBLE_ARG7 DBL_MAX + 8.0L > +#define FUNC_LDOUBLE_RET 0x1.fffffffffffff000000000000001p+1023L > + > +long double > +tst_audit27_func_ldouble (long double a0, long double a1, long double a2, > + long double a3, long double a4, long double a5, > + long double a6, long double a7); > + > +#endif > diff --git a/sysdeps/aarch64/tst-auditmod26.c b/sysdeps/aarch64/tst-auditmod26.c > new file mode 100644 > index 0000000000..b03b6baed9 > --- /dev/null > +++ b/sysdeps/aarch64/tst-auditmod26.c > @@ -0,0 +1,103 @@ > +/* Check LD_AUDIT for aarch64 specific ABI. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#include > +#include > +#include > +#include > +#include > +#include "tst-audit26mod.h" > + > +#define TEST_NAME "tst-audit26" > + > +#define AUDIT26_COOKIE 0 > + > +unsigned int > +la_version (unsigned int v) > +{ > + return v; > +} > + > +unsigned int > +la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t *cookie) > +{ > + const char *p = strrchr (map->l_name, '/'); > + const char *l_name = p == NULL ? map->l_name : p + 1; > + uintptr_t ck = -1; > + if (strncmp (l_name, TEST_NAME, strlen (TEST_NAME)) == 0) > + ck = AUDIT26_COOKIE; > + *cookie = ck; > + printf ("objopen: %ld, %s [cookie=%ld]\n", lmid, l_name, ck); > + return ck == -1 ? 0 : LA_FLG_BINDFROM | LA_FLG_BINDTO; > +} > + > +ElfW(Addr) > +la_aarch64_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)), > + unsigned int ndx __attribute__ ((unused)), > + uintptr_t *refcook, uintptr_t *defcook, > + La_aarch64_regs *regs, unsigned int *flags, > + const char *symname, long int *framesizep) > +{ > + printf ("pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n", > + symname, (long int) sym->st_value, ndx, *flags); > + > + if (strcmp (symname, "tst_audit26_func") == 0) > + { > + assert (regs->lr_xreg[0] == ARG1); > + assert (regs->lr_xreg[1] == ARG2); > + assert (regs->lr_xreg[2] == ARG3); > + } > + else > + abort (); > + > + assert (regs->lr_vpcs == 0); > + > + /* Clobber 'x8'. */ > + asm volatile ("mov x8, -1" : : : "x8"); > + > + *framesizep = 1024; > + > + return sym->st_value; > +} > + > +unsigned int > +la_aarch64_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, > + uintptr_t *defcook, > + const struct La_aarch64_regs *inregs, > + struct La_aarch64_retval *outregs, const char *symname) > +{ > + printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u\n", > + symname, (long int) sym->st_value, ndx); > + > + if (strcmp (symname, "tst_audit26_func") == 0) > + { > + assert (inregs->lr_xreg[0] == ARG1); > + assert (inregs->lr_xreg[1] == ARG2); > + assert (inregs->lr_xreg[2] == ARG3); > + } > + else > + abort (); > + > + assert (inregs->lr_vpcs == 0); > + assert (outregs->lrv_vpcs == 0); > + > + /* Clobber 'x8'. */ > + asm volatile ("mov x8, -1" : : : "x8"); > + > + return 0; > +} > diff --git a/sysdeps/aarch64/tst-auditmod27.c b/sysdeps/aarch64/tst-auditmod27.c > new file mode 100644 > index 0000000000..21132c2985 > --- /dev/null > +++ b/sysdeps/aarch64/tst-auditmod27.c > @@ -0,0 +1,180 @@ > +/* Check LD_AUDIT for aarch64 specific ABI. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include "tst-audit27mod.h" > + > +#define TEST_NAME "tst-audit27" > + > +#define AUDIT27_COOKIE 0 > + > +unsigned int > +la_version (unsigned int v) > +{ > + return v; > +} > + > +unsigned int > +la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t *cookie) > +{ > + const char *p = strrchr (map->l_name, '/'); > + const char *l_name = p == NULL ? map->l_name : p + 1; > + uintptr_t ck = -1; > + if (strncmp (l_name, TEST_NAME, strlen (TEST_NAME)) == 0) > + ck = AUDIT27_COOKIE; > + *cookie = ck; > + printf ("objopen: %ld, %s [%ld]\n", lmid, l_name, ck); > + return ck == -1 ? 0 : LA_FLG_BINDFROM | LA_FLG_BINDTO; > +} > + > +ElfW(Addr) > +la_aarch64_gnu_pltenter (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, > + uintptr_t *defcook, La_aarch64_regs *regs, > + unsigned int *flags, const char *symname, > + long int *framesizep) > +{ > + printf ("pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n", > + symname, (long int) sym->st_value, ndx, *flags); > + > + if (strcmp (symname, "tst_audit27_func_float") == 0) > + { > + assert (regs->lr_vreg[0].s == FUNC_FLOAT_ARG0); > + assert (regs->lr_vreg[1].s == FUNC_FLOAT_ARG1); > + assert (regs->lr_vreg[2].s == FUNC_FLOAT_ARG2); > + assert (regs->lr_vreg[3].s == FUNC_FLOAT_ARG3); > + assert (regs->lr_vreg[4].s == FUNC_FLOAT_ARG4); > + assert (regs->lr_vreg[5].s == FUNC_FLOAT_ARG5); > + assert (regs->lr_vreg[6].s == FUNC_FLOAT_ARG6); > + assert (regs->lr_vreg[7].s == FUNC_FLOAT_ARG7); > + } > + else if (strcmp (symname, "tst_audit27_func_double") == 0) > + { > + assert (regs->lr_vreg[0].d == FUNC_DOUBLE_ARG0); > + assert (regs->lr_vreg[1].d == FUNC_DOUBLE_ARG1); > + assert (regs->lr_vreg[2].d == FUNC_DOUBLE_ARG2); > + assert (regs->lr_vreg[3].d == FUNC_DOUBLE_ARG3); > + assert (regs->lr_vreg[4].d == FUNC_DOUBLE_ARG4); > + assert (regs->lr_vreg[5].d == FUNC_DOUBLE_ARG5); > + assert (regs->lr_vreg[6].d == FUNC_DOUBLE_ARG6); > + assert (regs->lr_vreg[7].d == FUNC_DOUBLE_ARG7); > + } > + else if (strcmp (symname, "tst_audit27_func_ldouble") == 0) > + { > + assert (regs->lr_vreg[0].q == FUNC_LDOUBLE_ARG0); > + assert (regs->lr_vreg[1].q == FUNC_LDOUBLE_ARG1); > + assert (regs->lr_vreg[2].q == FUNC_LDOUBLE_ARG2); > + assert (regs->lr_vreg[3].q == FUNC_LDOUBLE_ARG3); > + assert (regs->lr_vreg[4].q == FUNC_LDOUBLE_ARG4); > + assert (regs->lr_vreg[5].q == FUNC_LDOUBLE_ARG5); > + assert (regs->lr_vreg[6].q == FUNC_LDOUBLE_ARG6); > + assert (regs->lr_vreg[7].q == FUNC_LDOUBLE_ARG7); > + } > + else > + abort (); > + > + assert (regs->lr_vpcs == 0); > + > + /* Clobber the q registers on exit. */ > + uint8_t v = 0xff; > + asm volatile ("dup v0.8b, %w0" : : "r" (v) : "v0"); > + asm volatile ("dup v1.8b, %w0" : : "r" (v) : "v1"); > + asm volatile ("dup v2.8b, %w0" : : "r" (v) : "v2"); > + asm volatile ("dup v3.8b, %w0" : : "r" (v) : "v3"); > + asm volatile ("dup v4.8b, %w0" : : "r" (v) : "v4"); > + asm volatile ("dup v5.8b, %w0" : : "r" (v) : "v5"); > + asm volatile ("dup v6.8b, %w0" : : "r" (v) : "v6"); > + asm volatile ("dup v7.8b, %w0" : : "r" (v) : "v7"); > + > + *framesizep = 1024; > + > + return sym->st_value; > +} > + > +unsigned int > +la_aarch64_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, > + uintptr_t *defcook, > + const struct La_aarch64_regs *inregs, > + struct La_aarch64_retval *outregs, > + const char *symname) > +{ > + printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u\n", > + symname, (long int) sym->st_value, ndx); > + > + if (strcmp (symname, "tst_audit27_func_float") == 0) > + { > + assert (inregs->lr_vreg[0].s == FUNC_FLOAT_ARG0); > + assert (inregs->lr_vreg[1].s == FUNC_FLOAT_ARG1); > + assert (inregs->lr_vreg[2].s == FUNC_FLOAT_ARG2); > + assert (inregs->lr_vreg[3].s == FUNC_FLOAT_ARG3); > + assert (inregs->lr_vreg[4].s == FUNC_FLOAT_ARG4); > + assert (inregs->lr_vreg[5].s == FUNC_FLOAT_ARG5); > + assert (inregs->lr_vreg[6].s == FUNC_FLOAT_ARG6); > + assert (inregs->lr_vreg[7].s == FUNC_FLOAT_ARG7); > + > + assert (outregs->lrv_vreg[0].s == FUNC_FLOAT_RET); > + } > + else if (strcmp (symname, "tst_audit27_func_double") == 0) > + { > + assert (inregs->lr_vreg[0].d == FUNC_DOUBLE_ARG0); > + assert (inregs->lr_vreg[1].d == FUNC_DOUBLE_ARG1); > + assert (inregs->lr_vreg[2].d == FUNC_DOUBLE_ARG2); > + assert (inregs->lr_vreg[3].d == FUNC_DOUBLE_ARG3); > + assert (inregs->lr_vreg[4].d == FUNC_DOUBLE_ARG4); > + assert (inregs->lr_vreg[5].d == FUNC_DOUBLE_ARG5); > + assert (inregs->lr_vreg[6].d == FUNC_DOUBLE_ARG6); > + assert (inregs->lr_vreg[7].d == FUNC_DOUBLE_ARG7); > + > + assert (outregs->lrv_vreg[0].d == FUNC_DOUBLE_RET); > + } > + else if (strcmp (symname, "tst_audit27_func_ldouble") == 0) > + { > + assert (inregs->lr_vreg[0].q == FUNC_LDOUBLE_ARG0); > + assert (inregs->lr_vreg[1].q == FUNC_LDOUBLE_ARG1); > + assert (inregs->lr_vreg[2].q == FUNC_LDOUBLE_ARG2); > + assert (inregs->lr_vreg[3].q == FUNC_LDOUBLE_ARG3); > + assert (inregs->lr_vreg[4].q == FUNC_LDOUBLE_ARG4); > + assert (inregs->lr_vreg[5].q == FUNC_LDOUBLE_ARG5); > + assert (inregs->lr_vreg[6].q == FUNC_LDOUBLE_ARG6); > + assert (inregs->lr_vreg[7].q == FUNC_LDOUBLE_ARG7); > + > + assert (outregs->lrv_vreg[0].q == FUNC_LDOUBLE_RET); > + } > + else > + abort (); > + > + assert (inregs->lr_vpcs == 0); > + assert (outregs->lrv_vpcs == 0); > + > + /* Clobber the q registers on exit. */ > + uint8_t v = 0xff; > + asm volatile ("dup v0.8b, %w0" : : "r" (v) : "v0"); > + asm volatile ("dup v1.8b, %w0" : : "r" (v) : "v1"); > + asm volatile ("dup v2.8b, %w0" : : "r" (v) : "v2"); > + asm volatile ("dup v3.8b, %w0" : : "r" (v) : "v3"); > + asm volatile ("dup v4.8b, %w0" : : "r" (v) : "v4"); > + asm volatile ("dup v5.8b, %w0" : : "r" (v) : "v5"); > + asm volatile ("dup v6.8b, %w0" : : "r" (v) : "v6"); > + asm volatile ("dup v7.8b, %w0" : : "r" (v) : "v7"); > + > + return 0; > +} > diff --git a/sysdeps/generic/dl-audit-check.h b/sysdeps/generic/dl-audit-check.h > new file mode 100644 > index 0000000000..3ab7653286 > --- /dev/null > +++ b/sysdeps/generic/dl-audit-check.h > @@ -0,0 +1,23 @@ > +/* rtld-audit version check. Generic version. > + Copyright (C) 2022 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + . */ > + > +static inline bool > +_dl_audit_check_version (unsigned int lav) > +{ > + return lav <= LAV_CURRENT; > +} -- Cheers, Carlos.