[PATCH v3 07/11] libsframe: Add test for PLT0 and PLTN with only one FRE each
Indu Bhagat
indu.bhagat@oracle.com
Sat Jul 5 23:24:32 GMT 2025
On 6/27/25 4:08 AM, Jens Remus wrote:
> On s390x the PLT0 and PLTN entries are described with one SFrame FRE
> each. Add a test case for this particularity.
>
> libsframe/testsuite/
> * libsframe.find/find.exp (plt-findfre-2): Add new test.
> * libsframe.find/plt-findfre-2.c: New test for PLT0 and PLTN
> with only one FRE each.
> * libsframe.find/local.mk (plt-findfre-2): Add new test.
>
> libsframe/
> * Makefile.in: Regenerate.
LGTM.
Reviewed-by: Indu Bhagat <indu.bhagat@oracle.com>
> ---
>
> Notes (jremus):
> Changes in V3:
> - Align to improvements from commit 4e94f0075669 ("libsframe: fix issue
> finding FRE in PCMASK type SFrame FDEs"). (Indu)
> - Use macros (PLT_SIZE, PLT0_CFA_OFFSET_MAGIC, PLTN_CFA_OFFSET_MAGIC)
> instead of hardcoded values.
> - Make test names unique, by suffixing 'a' or 'b' for the two different
> test runs.
> - Check sframe_encode return code.
>
> Changes in V2:
> - New patch. (Indu)
>
> Kept this as a separate patch, as it does not depend on nor test the
> linker changes introduced with "s390: Add SFrame stack trace information
> for .plt section", although closely related.
>
> libsframe/Makefile.in | 42 +++-
> libsframe/testsuite/libsframe.find/find.exp | 5 +
> libsframe/testsuite/libsframe.find/local.mk | 5 +
> .../testsuite/libsframe.find/plt-findfre-2.c | 192 ++++++++++++++++++
> 4 files changed, 240 insertions(+), 4 deletions(-)
> create mode 100644 libsframe/testsuite/libsframe.find/plt-findfre-2.c
>
> diff --git a/libsframe/Makefile.in b/libsframe/Makefile.in
> index 13f4c26e2f14..fa705dd9f13e 100644
> --- a/libsframe/Makefile.in
> +++ b/libsframe/Makefile.in
> @@ -118,7 +118,8 @@ check_PROGRAMS = $(am__EXEEXT_1)
> @HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.encode/encode-1 \
> @HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/findfre-1 \
> @HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/findfunc-1 \
> -@HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/plt-findfre-1
> +@HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/plt-findfre-1 \
> +@HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/plt-findfre-2
> subdir = .
> ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
> am__aclocal_m4_deps = $(top_srcdir)/../bfd/acinclude.m4 \
> @@ -193,7 +194,8 @@ libsframe_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
> @HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.encode/encode-1$(EXEEXT) \
> @HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/findfre-1$(EXEEXT) \
> @HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/findfunc-1$(EXEEXT) \
> -@HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/plt-findfre-1$(EXEEXT)
> +@HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/plt-findfre-1$(EXEEXT) \
> +@HAVE_COMPAT_DEJAGNU_TRUE@ testsuite/libsframe.find/plt-findfre-2$(EXEEXT)
> am__dirstamp = $(am__leading_dot)dirstamp
> am_testsuite_libsframe_decode_be_flipping_OBJECTS = testsuite/libsframe.decode/testsuite_libsframe_decode_be_flipping-be-flipping.$(OBJEXT)
> testsuite_libsframe_decode_be_flipping_OBJECTS = \
> @@ -230,6 +232,11 @@ testsuite_libsframe_find_plt_findfre_1_OBJECTS = \
> $(am_testsuite_libsframe_find_plt_findfre_1_OBJECTS)
> testsuite_libsframe_find_plt_findfre_1_DEPENDENCIES = \
> ${top_builddir}/libsframe.la
> +am_testsuite_libsframe_find_plt_findfre_2_OBJECTS = testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.$(OBJEXT)
> +testsuite_libsframe_find_plt_findfre_2_OBJECTS = \
> + $(am_testsuite_libsframe_find_plt_findfre_2_OBJECTS)
> +testsuite_libsframe_find_plt_findfre_2_DEPENDENCIES = \
> + ${top_builddir}/libsframe.la
> AM_V_P = $(am__v_P_@AM_V@)
> am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
> am__v_P_0 = false
> @@ -271,7 +278,8 @@ SOURCES = $(libsframe_la_SOURCES) \
> $(testsuite_libsframe_encode_encode_1_SOURCES) \
> $(testsuite_libsframe_find_findfre_1_SOURCES) \
> $(testsuite_libsframe_find_findfunc_1_SOURCES) \
> - $(testsuite_libsframe_find_plt_findfre_1_SOURCES)
> + $(testsuite_libsframe_find_plt_findfre_1_SOURCES) \
> + $(testsuite_libsframe_find_plt_findfre_2_SOURCES)
> DIST_SOURCES = $(libsframe_la_SOURCES) \
> $(testsuite_libsframe_decode_be_flipping_SOURCES) \
> $(testsuite_libsframe_decode_frecnt_1_SOURCES) \
> @@ -279,7 +287,8 @@ DIST_SOURCES = $(libsframe_la_SOURCES) \
> $(testsuite_libsframe_encode_encode_1_SOURCES) \
> $(testsuite_libsframe_find_findfre_1_SOURCES) \
> $(testsuite_libsframe_find_findfunc_1_SOURCES) \
> - $(testsuite_libsframe_find_plt_findfre_1_SOURCES)
> + $(testsuite_libsframe_find_plt_findfre_1_SOURCES) \
> + $(testsuite_libsframe_find_plt_findfre_2_SOURCES)
> AM_V_DVIPS = $(am__v_DVIPS_@AM_V@)
> am__v_DVIPS_ = $(am__v_DVIPS_@AM_DEFAULT_V@)
> am__v_DVIPS_0 = @echo " DVIPS " $@;
> @@ -569,6 +578,9 @@ testsuite_libsframe_find_findfunc_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
> testsuite_libsframe_find_plt_findfre_1_SOURCES = testsuite/libsframe.find/plt-findfre-1.c
> testsuite_libsframe_find_plt_findfre_1_LDADD = ${top_builddir}/libsframe.la
> testsuite_libsframe_find_plt_findfre_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
> +testsuite_libsframe_find_plt_findfre_2_SOURCES = testsuite/libsframe.find/plt-findfre-2.c
> +testsuite_libsframe_find_plt_findfre_2_LDADD = ${top_builddir}/libsframe.la
> +testsuite_libsframe_find_plt_findfre_2_CPPFLAGS = -I${top_srcdir}/../include -Wall
> all: config.h
> $(MAKE) $(AM_MAKEFLAGS) all-am
>
> @@ -748,6 +760,13 @@ testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.$(
> testsuite/libsframe.find/plt-findfre-1$(EXEEXT): $(testsuite_libsframe_find_plt_findfre_1_OBJECTS) $(testsuite_libsframe_find_plt_findfre_1_DEPENDENCIES) $(EXTRA_testsuite_libsframe_find_plt_findfre_1_DEPENDENCIES) testsuite/libsframe.find/$(am__dirstamp)
> @rm -f testsuite/libsframe.find/plt-findfre-1$(EXEEXT)
> $(AM_V_CCLD)$(LINK) $(testsuite_libsframe_find_plt_findfre_1_OBJECTS) $(testsuite_libsframe_find_plt_findfre_1_LDADD) $(LIBS)
> +testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.$(OBJEXT): \
> + testsuite/libsframe.find/$(am__dirstamp) \
> + testsuite/libsframe.find/$(DEPDIR)/$(am__dirstamp)
> +
> +testsuite/libsframe.find/plt-findfre-2$(EXEEXT): $(testsuite_libsframe_find_plt_findfre_2_OBJECTS) $(testsuite_libsframe_find_plt_findfre_2_DEPENDENCIES) $(EXTRA_testsuite_libsframe_find_plt_findfre_2_DEPENDENCIES) testsuite/libsframe.find/$(am__dirstamp)
> + @rm -f testsuite/libsframe.find/plt-findfre-2$(EXEEXT)
> + $(AM_V_CCLD)$(LINK) $(testsuite_libsframe_find_plt_findfre_2_OBJECTS) $(testsuite_libsframe_find_plt_findfre_2_LDADD) $(LIBS)
>
> mostlyclean-compile:
> -rm -f *.$(OBJEXT)
> @@ -768,6 +787,7 @@ distclean-compile:
> @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_findfre_1-findfre-1.Po@am__quote@
> @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_findfunc_1-findfunc-1.Po@am__quote@
> @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Po@am__quote@
> +@AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Po@am__quote@
>
> .c.o:
> @am__fastdepCC_TRUE@ $(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
> @@ -912,6 +932,20 @@ testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.ob
> @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
> @am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_1_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.obj `if test -f 'testsuite/libsframe.find/plt-findfre-1.c'; then $(CYGPATH_W) 'testsuite/libsframe.find/plt-findfre-1.c'; else $(CYGPATH_W) '$(srcdir)/testsuite/libsframe.find/plt-findfre-1.c'; fi`
>
> +testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.o: testsuite/libsframe.find/plt-findfre-2.c
> +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_2_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.o -MD -MP -MF testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Tpo -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.o `test -f 'testsuite/libsframe.find/plt-findfre-2.c' || echo '$(srcdir)/'`testsuite/libsframe.find/plt-findfre-2.c
> +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Tpo testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Po
> +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='testsuite/libsframe.find/plt-findfre-2.c' object='testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.o' libtool=no @AMDEPBACKSLASH@
> +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
> +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_2_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.o `test -f 'testsuite/libsframe.find/plt-findfre-2.c' || echo '$(srcdir)/'`testsuite/libsframe.find/plt-findfre-2.c
> +
> +testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.obj: testsuite/libsframe.find/plt-findfre-2.c
> +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_2_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.obj -MD -MP -MF testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Tpo -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.obj `if test -f 'testsuite/libsframe.find/plt-findfre-2.c'; then $(CYGPATH_W) 'testsuite/libsframe.find/plt-findfre-2.c'; else $(CYGPATH_W) '$(srcdir)/testsuite/libsframe.find/plt-findfre-2.c'; fi`
> +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Tpo testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.Po
> +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='testsuite/libsframe.find/plt-findfre-2.c' object='testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.obj' libtool=no @AMDEPBACKSLASH@
> +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
> +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_2_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_2-plt-findfre-2.obj `if test -f 'testsuite/libsframe.find/plt-findfre-2.c'; then $(CYGPATH_W) 'testsuite/libsframe.find/plt-findfre-2.c'; else $(CYGPATH_W) '$(srcdir)/testsuite/libsframe.find/plt-findfre-2.c'; fi`
> +
> mostlyclean-libtool:
> -rm -f *.lo
>
> diff --git a/libsframe/testsuite/libsframe.find/find.exp b/libsframe/testsuite/libsframe.find/find.exp
> index d1be070be5bd..62471a39ab3e 100644
> --- a/libsframe/testsuite/libsframe.find/find.exp
> +++ b/libsframe/testsuite/libsframe.find/find.exp
> @@ -26,6 +26,7 @@ if [string equal $COMPAT_DEJAGNU "no"] {
> unsupported findfre-1
> unsupported findfunc-1
> unsupported plt-findfre-1
> + unsupported plt-findfre-2
> return;
> }
>
> @@ -40,3 +41,7 @@ if { [host_execute "testsuite/libsframe.find/findfunc-1"] ne "" } {
> if { [host_execute "testsuite/libsframe.find/plt-findfre-1"] ne "" } {
> fail "plt-findfre-1"
> }
> +
> +if { [host_execute "testsuite/libsframe.find/plt-findfre-2"] ne "" } {
> + fail "plt-findfre-2"
> +}
> diff --git a/libsframe/testsuite/libsframe.find/local.mk b/libsframe/testsuite/libsframe.find/local.mk
> index 03206b134d6c..52741e8063d7 100644
> --- a/libsframe/testsuite/libsframe.find/local.mk
> +++ b/libsframe/testsuite/libsframe.find/local.mk
> @@ -1,5 +1,6 @@
> if HAVE_COMPAT_DEJAGNU
> check_PROGRAMS += %D%/findfre-1 %D%/findfunc-1 %D%/plt-findfre-1
> + check_PROGRAMS += %D%/plt-findfre-2
> endif
>
> %C%_findfre_1_SOURCES = %D%/findfre-1.c
> @@ -13,3 +14,7 @@ endif
> %C%_plt_findfre_1_SOURCES = %D%/plt-findfre-1.c
> %C%_plt_findfre_1_LDADD = ${top_builddir}/libsframe.la
> %C%_plt_findfre_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
> +
> +%C%_plt_findfre_2_SOURCES = %D%/plt-findfre-2.c
> +%C%_plt_findfre_2_LDADD = ${top_builddir}/libsframe.la
> +%C%_plt_findfre_2_CPPFLAGS = -I${top_srcdir}/../include -Wall
> diff --git a/libsframe/testsuite/libsframe.find/plt-findfre-2.c b/libsframe/testsuite/libsframe.find/plt-findfre-2.c
> new file mode 100644
> index 000000000000..3ccc259a4d1c
> --- /dev/null
> +++ b/libsframe/testsuite/libsframe.find/plt-findfre-2.c
> @@ -0,0 +1,192 @@
> +/* plt-findfre-2.c -- Test for sframe_find_fre for SFrame FDE of type
> + PCMASK with with one SFrame FRE only.
> +
> + Copyright (C) 2025 Free Software Foundation, Inc.
> +
> + This program is free software; you can redistribute it and/or modify
> + it under the terms of the GNU General Public License as published by
> + the Free Software Foundation; either version 3 of the License, or
> + (at your option) any later version.
> +
> + This program 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 General Public License for more details.
> +
> + You should have received a copy of the GNU General Public License
> + along with this program. If not, see <http://www.gnu.org/licenses/>. */
> +
> +#include "config.h"
> +
> +#include <stdlib.h>
> +#include <string.h>
> +#include <sys/stat.h>
> +
> +#include "sframe-api.h"
> +
> +/* DejaGnu should not use gnulib's vsnprintf replacement here. */
> +#undef vsnprintf
> +#include <dejagnu.h>
> +
> +/* s390x-specific size in bytes of plt0 and pltN. */
> +#define PLT_SIZE 32
> +
> +/* Magic values added to CFA offsets to make them distingishable. Must
> + be multiple of 8 due to s390x-specific CFA alignment factor. */
> +#define PLT0_CFA_OFFSET_MAGIC 0
> +#define PLTN_CFA_OFFSET_MAGIC 8
> +
> +static int
> +add_plt0_fde (sframe_encoder_ctx *ectx, uint32_t plt_vaddr,
> + uint32_t sframe_vaddr, int idx)
> +{
> + /* 1 single FRE. */
> + sframe_frame_row_entry fre
> + = { 0x0,
> + { 0, 160 + PLT0_CFA_OFFSET_MAGIC },
> + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_2B) };
> +
> + unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
> + SFRAME_FDE_TYPE_PCINC);
> + int32_t func_start_addr = plt_vaddr - sframe_vaddr;
> +
> + /* 1 PCINC-type FDE for 1 plt0 entry of 32 bytes. */
> + int err = sframe_encoder_add_funcdesc_v2 (ectx, func_start_addr,
> + PLT_SIZE /* func size. */,
> + finfo,
> + 0 /* rep block size. */,
> + 1 /* num FREs. */);
> + if (err == -1)
> + return err;
> +
> + if (sframe_encoder_add_fre (ectx, idx, &fre) == SFRAME_ERR)
> + return -1;
> +
> + return 0;
> +}
> +
> +static int
> +add_pltn_fde (sframe_encoder_ctx *ectx, uint32_t plt_vaddr,
> + uint32_t sframe_vaddr, int idx)
> +{
> + /* 1 single FRE. */
> + sframe_frame_row_entry fre
> + = { 0x0,
> + { 0, 160 + PLTN_CFA_OFFSET_MAGIC },
> + SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_2B) };
> +
> + unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
> + SFRAME_FDE_TYPE_PCMASK);
> + int32_t func_start_addr = plt_vaddr - sframe_vaddr;
> +
> + /* 1 PCMASK-type FDE for 5 pltN entries of 32 bytes each. */
> + int err = sframe_encoder_add_funcdesc_v2 (ectx, func_start_addr,
> + 5 * PLT_SIZE /* func size. */,
> + finfo,
> + PLT_SIZE /* rep block size. */,
> + 1 /* num FREs. */);
> + if (err == -1)
> + return err;
> +
> + if (sframe_encoder_add_fre (ectx, idx, &fre) == SFRAME_ERR)
> + return -1;
> +
> + return 0;
> +}
> +
> +static
> +void test_plt_findfre (const char suffix, const uint32_t plt_vaddr,
> + const uint32_t sframe_vaddr)
> +{
> + sframe_encoder_ctx *ectx;
> + sframe_decoder_ctx *dctx;
> + sframe_frame_row_entry frep;
> + char *sframe_buf;
> + size_t sf_size;
> + int err = 0;
> + unsigned int fde_cnt = 0;
> + int i;
> +
> +#define TEST(cond, ...) \
> + do \
> + { \
> + if (cond) \
> + pass (__VA_ARGS__); \
> + else \
> + fail (__VA_ARGS__); \
> + } \
> + while (0)
> +
> + ectx = sframe_encode (SFRAME_VERSION, 0, SFRAME_ABI_S390X_ENDIAN_BIG,
> + SFRAME_CFA_FIXED_FP_INVALID,
> + SFRAME_CFA_FIXED_RA_INVALID,
> + &err);
> + TEST (ectx != NULL && err == 0, "plt-findfre-2%c: Creating SFrame encoder", suffix);
> +
> + err = add_plt0_fde (ectx, plt_vaddr, sframe_vaddr, 0);
> + TEST (err == 0, "plt-findfre-2%c: Adding FDE for plt0", suffix);
> +
> + fde_cnt = sframe_encoder_get_num_fidx (ectx);
> + TEST (fde_cnt == 1, "plt-findfre-2%c: Test FDE count after adding FDE for plt0", suffix);
> +
> + err = add_pltn_fde (ectx, plt_vaddr + PLT_SIZE, sframe_vaddr, 1);
> + TEST (err == 0, "plt-findfre-2%c: Adding FDE for pltN", suffix);
> +
> + fde_cnt = sframe_encoder_get_num_fidx (ectx);
> + TEST (fde_cnt == 2, "plt-findfre-2%c: Test FDE count after adding FDE for pltN", suffix);
> +
> + sframe_buf = sframe_encoder_write (ectx, &sf_size, &err);
> + TEST (err == 0, "plt-findfre-2%c: Encoder write", suffix);
> +
> + dctx = sframe_decode (sframe_buf, sf_size, &err);
> + TEST (dctx != NULL, "plt-findfre-2%c: Decoder setup", suffix);
> +
> + /* Find the only FRE in PLT0 at offset 0. */
> + err = sframe_find_fre (dctx, (plt_vaddr + 0 - sframe_vaddr), &frep);
> + TEST (err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 160 + PLT0_CFA_OFFSET_MAGIC,
> + "plt-findfre-2%c: Find only FRE in PLT0 at offset 0", suffix);
> +
> + /* Find the only FRE in PLT0 at offset PLT_SIZE-1. */
> + err = sframe_find_fre (dctx, (plt_vaddr + (PLT_SIZE-1) - sframe_vaddr), &frep);
> + TEST (err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 160 + PLT0_CFA_OFFSET_MAGIC,
> + "plt-findfre-2%c: Find only FRE in PLT0 at offset PLT_SIZE-1", suffix);
> +
> + /* Find the only FRE in PLT1-5 at offset 0 and PLT_SIZE-1. */
> + for (i = 1; i < 5; i++)
> + {
> + /* Find the only FRE in PLTN at offset 0. */
> + err = sframe_find_fre (dctx, (plt_vaddr + i * PLT_SIZE + 0 - sframe_vaddr), &frep);
> + TEST (err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 160 + PLTN_CFA_OFFSET_MAGIC,
> + "plt-findfre-2%c: Find only FRE in PLT%d at offset 0", suffix, i);
> +
> + /* Find the only FRE in PLTN at offset 31. */
> + err = sframe_find_fre (dctx, (plt_vaddr + i * PLT_SIZE + (PLT_SIZE-1) - sframe_vaddr), &frep);
> + TEST (err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 160 + PLTN_CFA_OFFSET_MAGIC,
> + "plt-findfre-2%c: Find only FRE in PLT%d at offset PLT_SIZE-1", suffix, i);
> + }
> +
> + /* Find no FRE in non-existing PLT6 at offset 0. */
> + err = sframe_find_fre (dctx, (plt_vaddr + 6 * PLT_SIZE + 0 - sframe_vaddr), &frep);
> + TEST (err != 0, "plt-findfre-2%c: Find no FRE in out of range PLT6 at offset 0", suffix);
> +
> + sframe_encoder_free (&ectx);
> + sframe_decoder_free (&dctx);
> +}
> +
> +int
> +main (void)
> +{
> + uint32_t sframe_vaddr = 0x402220;
> + uint32_t plt_vaddr = 0x401020;
> + printf ("plt-findfre-2a: Testing with plt_vaddr = %#x; sframe_vaddr = %#x\n",
> + plt_vaddr, sframe_vaddr);
> + test_plt_findfre ('a', plt_vaddr, sframe_vaddr);
> +
> + sframe_vaddr = 0x401020;
> + plt_vaddr = 0x402220;
> + printf ("plt-findfre-2b: Testing with plt_vaddr = %#x; sframe_vaddr = %#x\n",
> + plt_vaddr, sframe_vaddr);
> + test_plt_findfre ('b', plt_vaddr, sframe_vaddr);
> +
> + return 0;
> +}
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