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authorIndu Bhagat <indu.bhagat@oracle.com>2022-11-15 15:07:09 -0800
committerIndu Bhagat <indu.bhagat@oracle.com>2022-11-15 15:50:05 -0800
commit42b6953bbad652d3f7cba405c941ad9c6eab26b0 (patch)
tree7f1276452e23a847be0105dba5bf563b1f8e3457 /libsframe
parentcf0e0a0ba91664b680dff1e310f24dbe6447bd4c (diff)
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readelf/objdump: support for SFrame section
This patch adds support for SFrame in readelf and objdump. The arguments of --sframe are optional for both readelf and objdump. include/ChangeLog: * sframe-api.h (dump_sframe): New function declaration. ChangeLog: * binutils/Makefile.am: Add dependency on libsframe for readelf and objdump. * binutils/Makefile.in: Regenerate. * binutils/doc/binutils.texi: Document --sframe=[section]. * binutils/doc/sframe.options.texi: New file. * binutils/objdump.c: Add support for SFrame format. * binutils/readelf.c: Likewise. * include/sframe-api.h: Add new API for dumping .sframe section. * libsframe/Makefile.am: Add sframe-dump.c. * libsframe/Makefile.in: Regenerate. * libsframe/sframe-dump.c: New file.
Diffstat (limited to 'libsframe')
-rw-r--r--libsframe/Makefile.am2
-rw-r--r--libsframe/Makefile.in12
-rw-r--r--libsframe/sframe-dump.c181
3 files changed, 192 insertions, 3 deletions
diff --git a/libsframe/Makefile.am b/libsframe/Makefile.am
index 940494d..d8198a16 100644
--- a/libsframe/Makefile.am
+++ b/libsframe/Makefile.am
@@ -33,7 +33,7 @@ include_HEADERS =
noinst_LTLIBRARIES = libsframe.la
endif
-libsframe_la_SOURCES = sframe.c sframe-error.c
+libsframe_la_SOURCES = sframe.c sframe-dump.c sframe-error.c
libsframe_la_CPPFLAGS = $(AM_CPPFLAGS)
include testsuite/local.mk
diff --git a/libsframe/Makefile.in b/libsframe/Makefile.in
index 2d1ea89..340bfe8 100644
--- a/libsframe/Makefile.in
+++ b/libsframe/Makefile.in
@@ -149,7 +149,7 @@ am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(includedir)"
LTLIBRARIES = $(lib_LTLIBRARIES) $(noinst_LTLIBRARIES)
libsframe_la_LIBADD =
am_libsframe_la_OBJECTS = libsframe_la-sframe.lo \
- libsframe_la-sframe-error.lo
+ libsframe_la-sframe-dump.lo libsframe_la-sframe-error.lo
libsframe_la_OBJECTS = $(am_libsframe_la_OBJECTS)
AM_V_lt = $(am__v_lt_@AM_V@)
am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
@@ -427,7 +427,7 @@ AM_CFLAGS = @ac_libsframe_warn_cflags@
@INSTALL_LIBBFD_FALSE@include_HEADERS =
@INSTALL_LIBBFD_TRUE@include_HEADERS = $(INCDIR)/sframe.h $(INCDIR)/sframe-api.h
@INSTALL_LIBBFD_FALSE@noinst_LTLIBRARIES = libsframe.la
-libsframe_la_SOURCES = sframe.c sframe-error.c
+libsframe_la_SOURCES = sframe.c sframe-dump.c sframe-error.c
libsframe_la_CPPFLAGS = $(AM_CPPFLAGS)
# Setup the testing framework
@@ -607,6 +607,7 @@ mostlyclean-compile:
distclean-compile:
-rm -f *.tab.c
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libsframe_la-sframe-dump.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libsframe_la-sframe-error.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libsframe_la-sframe.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.decode/$(DEPDIR)/testsuite_libsframe_decode_be_flipping-be-flipping.Po@am__quote@
@@ -645,6 +646,13 @@ libsframe_la-sframe.lo: sframe.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libsframe_la-sframe.lo `test -f 'sframe.c' || echo '$(srcdir)/'`sframe.c
+libsframe_la-sframe-dump.lo: sframe-dump.c
+@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libsframe_la-sframe-dump.lo -MD -MP -MF $(DEPDIR)/libsframe_la-sframe-dump.Tpo -c -o libsframe_la-sframe-dump.lo `test -f 'sframe-dump.c' || echo '$(srcdir)/'`sframe-dump.c
+@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libsframe_la-sframe-dump.Tpo $(DEPDIR)/libsframe_la-sframe-dump.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='sframe-dump.c' object='libsframe_la-sframe-dump.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libsframe_la-sframe-dump.lo `test -f 'sframe-dump.c' || echo '$(srcdir)/'`sframe-dump.c
+
libsframe_la-sframe-error.lo: sframe-error.c
@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libsframe_la-sframe-error.lo -MD -MP -MF $(DEPDIR)/libsframe_la-sframe-error.Tpo -c -o libsframe_la-sframe-error.lo `test -f 'sframe-error.c' || echo '$(srcdir)/'`sframe-error.c
@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libsframe_la-sframe-error.Tpo $(DEPDIR)/libsframe_la-sframe-error.Plo
diff --git a/libsframe/sframe-dump.c b/libsframe/sframe-dump.c
new file mode 100644
index 0000000..5b063c9
--- /dev/null
+++ b/libsframe/sframe-dump.c
@@ -0,0 +1,181 @@
+/* sframe-dump.c - Textual dump of .sframe.
+
+ Copyright (C) 2022 Free Software Foundation, Inc.
+
+ his file is part of libsframe.
+
+ 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 <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include "sframe-impl.h"
+
+#define SFRAME_HEADER_FLAGS_STR_MAX_LEN 50
+
+static void
+dump_sframe_header (sframe_decoder_ctx *sfd_ctx)
+{
+ const char *verstr = NULL;
+ const sframe_header *header = &(sfd_ctx->sfd_header);
+
+ /* Prepare SFrame section version string. */
+ const char *version_names[]
+ = { "NULL",
+ "SFRAME_VERSION_1" };
+ unsigned char ver = header->sfh_preamble.sfp_version;
+ if (ver <= SFRAME_VERSION)
+ verstr = version_names[ver];
+
+ /* Prepare SFrame section flags string. */
+ unsigned char flags = header->sfh_preamble.sfp_flags;
+ char *flags_str
+ = (char*) calloc (sizeof (char), SFRAME_HEADER_FLAGS_STR_MAX_LEN);
+ if (flags)
+ {
+ const char *flag_names[]
+ = { "SFRAME_F_FDE_SORTED",
+ "SFRAME_F_FRAME_POINTER" };
+ unsigned char flags = header->sfh_preamble.sfp_flags;
+ if (flags & SFRAME_F_FDE_SORTED)
+ strcpy (flags_str, flag_names[0]);
+ if (flags & SFRAME_F_FRAME_POINTER)
+ {
+ if (strlen (flags_str) > 0)
+ strcpy (flags_str, ",");
+ strcpy (flags_str, flag_names[1]);
+ }
+ }
+ else
+ strcpy (flags_str, "NONE");
+
+ const char* subsec_name = "Header";
+ printf ("\n");
+ printf (" %s :\n", subsec_name);
+ printf ("\n");
+ printf (" Version: %s\n", verstr);
+ printf (" Flags: %s\n", flags_str);
+ printf (" Num FDEs: %d\n", header->sfh_num_fdes);
+ printf (" Num FREs: %d\n", header->sfh_num_fres);
+
+ free (flags_str);
+}
+
+static void
+dump_sframe_func_with_fres (sframe_decoder_ctx *sfd_ctx,
+ unsigned int funcidx,
+ uint64_t sec_addr)
+{
+ uint32_t j = 0;
+ uint32_t num_fres = 0;
+ uint32_t func_size = 0;
+ int32_t func_start_address = 0;
+ unsigned char func_info = 0;
+
+ uint64_t func_start_pc_vma = 0;
+ uint64_t fre_start_pc_vma = 0;
+ const char *base_reg_str[] = {"fp", "sp"};
+ int32_t cfa_offset = 0;
+ int32_t fp_offset = 0;
+ int32_t ra_offset = 0;
+ unsigned int base_reg_id = 0;
+ int err[3] = {0, 0, 0};
+
+ sframe_frame_row_entry fre;
+
+ /* Get the SFrame function descriptor. */
+ sframe_decoder_get_funcdesc (sfd_ctx, funcidx, &num_fres,
+ &func_size, &func_start_address, &func_info);
+ /* Calculate the virtual memory address for function start pc. */
+ func_start_pc_vma = func_start_address + sec_addr;
+
+ /* Mark FDEs with [m] where the FRE start address is interpreted as a
+ mask. */
+ int fde_type_addrmask_p = (SFRAME_V1_FUNC_FDE_TYPE (func_info)
+ == SFRAME_FDE_TYPE_PCMASK);
+ const char *fde_type_marker
+ = (fde_type_addrmask_p ? "[m]" : " ");
+
+ printf ("\n func idx [%d]: pc = 0x%"PRIx64 ", size = %d bytes",
+ funcidx,
+ func_start_pc_vma,
+ func_size);
+
+ char temp[100];
+ memset (temp, 0, 100);
+
+ printf ("\n %-7s%-8s %-10s%-10s%-10s", "STARTPC", fde_type_marker, "CFA", "FP", "RA");
+ for (j = 0; j < num_fres; j++)
+ {
+ sframe_decoder_get_fre (sfd_ctx, funcidx, j, &fre);
+
+ fre_start_pc_vma = (fde_type_addrmask_p
+ ? fre.fre_start_addr
+ : func_start_pc_vma + fre.fre_start_addr);
+
+ /* FIXME - fixup the err caching in array.
+ assert no error for base reg id. */
+ base_reg_id = sframe_fre_get_base_reg_id (&fre, &err[0]);
+ cfa_offset = sframe_fre_get_cfa_offset (sfd_ctx, &fre, &err[0]);
+ fp_offset = sframe_fre_get_fp_offset (sfd_ctx, &fre, &err[1]);
+ ra_offset = sframe_fre_get_ra_offset (sfd_ctx, &fre, &err[2]);
+
+ /* Dump CFA info. */
+ printf ("\n");
+ printf (" %016"PRIx64, fre_start_pc_vma);
+ sprintf (temp, "%s+%d", base_reg_str[base_reg_id], cfa_offset);
+ printf (" %-10s", temp);
+
+ /* Dump SP/FP info. */
+ memset (temp, 0, 100);
+ if (err[1] == 0)
+ sprintf (temp, "c%+d", fp_offset);
+ else
+ strcpy (temp, "u");
+ printf ("%-10s", temp);
+
+ /* Dump RA info. */
+ memset (temp, 0, 100);
+ if (err[2] == 0)
+ sprintf (temp, "c%+d", ra_offset);
+ else
+ strcpy (temp, "u");
+ printf ("%-10s", temp);
+ }
+}
+
+static void
+dump_sframe_functions (sframe_decoder_ctx *sfd_ctx, uint64_t sec_addr)
+{
+ uint32_t i;
+ uint32_t num_fdes;
+
+ const char* subsec_name = "Function Index";
+ printf ("\n %s :\n", subsec_name);
+
+ num_fdes = sframe_decoder_get_num_fidx (sfd_ctx);
+ for (i = 0; i < num_fdes; i++)
+ {
+ dump_sframe_func_with_fres (sfd_ctx, i, sec_addr);
+ printf ("\n");
+ }
+}
+
+void
+dump_sframe (sframe_decoder_ctx *sfd_ctx, uint64_t sec_addr)
+{
+ dump_sframe_header (sfd_ctx);
+ dump_sframe_functions (sfd_ctx, sec_addr);
+}