1057 lines
35 KiB
Diff
1057 lines
35 KiB
Diff
http://fedoraproject.org/wiki/Features/MiniDebugInfo
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https://bugzilla.redhat.com/show_bug.cgi?id=834068
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Patch by Alexander Larsson.
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Review/modifications and testfile by Jan Kratochvil.
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Index: gdb-7.4.91.20120801/gdb/Makefile.in
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===================================================================
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--- gdb-7.4.91.20120801.orig/gdb/Makefile.in 2012-08-01 18:44:51.000000000 +0200
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+++ gdb-7.4.91.20120801/gdb/Makefile.in 2012-08-01 18:47:05.701820594 +0200
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@@ -151,6 +151,9 @@ READLINE_CFLAGS = @READLINE_CFLAGS@
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# Where is expat? This will be empty if expat was not available.
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LIBEXPAT = @LIBEXPAT@
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+# Where is lzma? This will be empty if lzma was not available.
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+LIBLZMA = @LIBLZMA@
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+
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WARN_CFLAGS = @WARN_CFLAGS@
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WERROR_CFLAGS = @WERROR_CFLAGS@
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GDB_WARN_CFLAGS = $(WARN_CFLAGS)
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@@ -467,7 +470,7 @@ INTERNAL_LDFLAGS = $(CFLAGS) $(GLOBAL_CF
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# LIBIBERTY appears twice on purpose.
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CLIBS = $(SIM) $(READLINE) $(OPCODES) $(BFD) $(INTL) $(LIBIBERTY) $(LIBDECNUMBER) \
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$(XM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ @PYTHON_LIBS@ \
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- $(LIBEXPAT) \
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+ $(LIBEXPAT) $(LIBLZMA) \
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$(LIBIBERTY) $(WIN32LIBS) $(LIBGNU)
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CDEPS = $(XM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE_DEPS) \
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$(OPCODES) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS) $(LIBGNU)
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Index: gdb-7.4.91.20120801/gdb/config.in
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===================================================================
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--- gdb-7.4.91.20120801.orig/gdb/config.in 2012-08-01 18:45:21.000000000 +0200
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+++ gdb-7.4.91.20120801/gdb/config.in 2012-08-01 18:47:05.701820594 +0200
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@@ -198,6 +198,9 @@
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/* Define to 1 if you have the `libiconvlist' function. */
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#undef HAVE_LIBICONVLIST
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+/* Define if you have the lzma library. */
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+#undef HAVE_LIBLZMA
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+
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/* Define to 1 if you have the `m' library (-lm). */
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#undef HAVE_LIBM
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Index: gdb-7.4.91.20120801/gdb/configure
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===================================================================
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--- gdb-7.4.91.20120801.orig/gdb/configure 2012-08-01 18:45:21.000000000 +0200
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+++ gdb-7.4.91.20120801/gdb/configure 2012-08-01 18:47:05.703820583 +0200
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@@ -641,6 +641,9 @@ TCL_VERSION
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WIN32LDAPP
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GUI_CFLAGS_X
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LIBGUI
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+LTLIBLZMA
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+LIBLZMA
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+HAVE_LIBLZMA
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WIN32LIBS
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SER_HARDWIRE
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WERROR_CFLAGS
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@@ -813,6 +816,8 @@ with_system_gdbinit
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enable_werror
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enable_build_warnings
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enable_gdb_build_warnings
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+with_lzma
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+with_liblzma_prefix
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with_tcl
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with_tk
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with_x
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@@ -1532,6 +1537,9 @@ Optional Packages:
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--with-sysroot[=DIR] search for usr/lib et al within DIR
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--with-system-gdbinit=PATH
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automatically load a system-wide gdbinit file
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+ --with-lzma support lzma compression (auto/yes/no)
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+ --with-liblzma-prefix[=DIR] search for liblzma in DIR/include and DIR/lib
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+ --without-liblzma-prefix don't search for liblzma in includedir and libdir
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--with-tcl directory containing tcl configuration (tclConfig.sh)
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--with-tk directory containing tk configuration (tkConfig.sh)
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--with-x use the X Window System
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@@ -13151,6 +13159,494 @@ LIBS=$OLD_LIBS
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# Add any host-specific objects to GDB.
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CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
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|
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+# If building on ELF, look for lzma support for embedded compressed debug info.
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+if test $gdb_cv_var_elf = yes; then
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+
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+# Check whether --with-lzma was given.
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+if test "${with_lzma+set}" = set; then :
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+ withval=$with_lzma;
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+else
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+ with_lzma=auto
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+fi
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+
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use lzma" >&5
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+$as_echo_n "checking whether to use lzma... " >&6; }
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_lzma" >&5
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+$as_echo "$with_lzma" >&6; }
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+
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+ if test "${with_lzma}" != no; then
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+
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+
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+
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+
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+
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+
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+
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+
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+ use_additional=yes
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+
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+ acl_save_prefix="$prefix"
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+ prefix="$acl_final_prefix"
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+ acl_save_exec_prefix="$exec_prefix"
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+ exec_prefix="$acl_final_exec_prefix"
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+
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+ eval additional_includedir=\"$includedir\"
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+ eval additional_libdir=\"$libdir\"
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+
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+ exec_prefix="$acl_save_exec_prefix"
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+ prefix="$acl_save_prefix"
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+
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+
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+# Check whether --with-liblzma-prefix was given.
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+if test "${with_liblzma_prefix+set}" = set; then :
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+ withval=$with_liblzma_prefix;
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+ if test "X$withval" = "Xno"; then
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+ use_additional=no
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+ else
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+ if test "X$withval" = "X"; then
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+
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+ acl_save_prefix="$prefix"
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+ prefix="$acl_final_prefix"
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+ acl_save_exec_prefix="$exec_prefix"
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+ exec_prefix="$acl_final_exec_prefix"
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+
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+ eval additional_includedir=\"$includedir\"
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+ eval additional_libdir=\"$libdir\"
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+
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+ exec_prefix="$acl_save_exec_prefix"
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+ prefix="$acl_save_prefix"
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+
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+ else
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+ additional_includedir="$withval/include"
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+ additional_libdir="$withval/lib"
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+ fi
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+ fi
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+
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+fi
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+
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+ LIBLZMA=
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+ LTLIBLZMA=
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+ INCLZMA=
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+ rpathdirs=
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+ ltrpathdirs=
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+ names_already_handled=
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+ names_next_round='lzma '
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+ while test -n "$names_next_round"; do
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+ names_this_round="$names_next_round"
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+ names_next_round=
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+ for name in $names_this_round; do
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+ already_handled=
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+ for n in $names_already_handled; do
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+ if test "$n" = "$name"; then
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+ already_handled=yes
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+ break
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+ fi
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+ done
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+ if test -z "$already_handled"; then
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+ names_already_handled="$names_already_handled $name"
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+ uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
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+ eval value=\"\$HAVE_LIB$uppername\"
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+ if test -n "$value"; then
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+ if test "$value" = yes; then
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+ eval value=\"\$LIB$uppername\"
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+ test -z "$value" || LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$value"
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+ eval value=\"\$LTLIB$uppername\"
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+ test -z "$value" || LTLIBLZMA="${LTLIBLZMA}${LTLIBLZMA:+ }$value"
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+ else
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+ :
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+ fi
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+ else
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+ found_dir=
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+ found_la=
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+ found_so=
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+ found_a=
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+ if test $use_additional = yes; then
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+ if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
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+ found_dir="$additional_libdir"
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+ found_so="$additional_libdir/lib$name.$shlibext"
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+ if test -f "$additional_libdir/lib$name.la"; then
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+ found_la="$additional_libdir/lib$name.la"
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+ fi
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+ else
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+ if test -f "$additional_libdir/lib$name.$libext"; then
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+ found_dir="$additional_libdir"
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+ found_a="$additional_libdir/lib$name.$libext"
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+ if test -f "$additional_libdir/lib$name.la"; then
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+ found_la="$additional_libdir/lib$name.la"
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+ fi
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+ fi
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+ fi
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+ fi
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+ if test "X$found_dir" = "X"; then
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+ for x in $LDFLAGS $LTLIBLZMA; do
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+
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+ acl_save_prefix="$prefix"
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+ prefix="$acl_final_prefix"
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+ acl_save_exec_prefix="$exec_prefix"
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+ exec_prefix="$acl_final_exec_prefix"
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+ eval x=\"$x\"
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+ exec_prefix="$acl_save_exec_prefix"
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+ prefix="$acl_save_prefix"
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+
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+ case "$x" in
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+ -L*)
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+ dir=`echo "X$x" | sed -e 's/^X-L//'`
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+ if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
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+ found_dir="$dir"
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+ found_so="$dir/lib$name.$shlibext"
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+ if test -f "$dir/lib$name.la"; then
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+ found_la="$dir/lib$name.la"
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+ fi
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+ else
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+ if test -f "$dir/lib$name.$libext"; then
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+ found_dir="$dir"
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+ found_a="$dir/lib$name.$libext"
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+ if test -f "$dir/lib$name.la"; then
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+ found_la="$dir/lib$name.la"
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+ fi
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+ fi
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+ fi
|
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+ ;;
|
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+ esac
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+ if test "X$found_dir" != "X"; then
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+ break
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+ fi
|
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+ done
|
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+ fi
|
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+ if test "X$found_dir" != "X"; then
|
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+ LTLIBLZMA="${LTLIBLZMA}${LTLIBLZMA:+ }-L$found_dir -l$name"
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+ if test "X$found_so" != "X"; then
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+ if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/lib"; then
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$found_so"
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+ else
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+ haveit=
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+ for x in $ltrpathdirs; do
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+ if test "X$x" = "X$found_dir"; then
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+ haveit=yes
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+ break
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+ fi
|
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+ done
|
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+ if test -z "$haveit"; then
|
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+ ltrpathdirs="$ltrpathdirs $found_dir"
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+ fi
|
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+ if test "$hardcode_direct" = yes; then
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$found_so"
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+ else
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+ if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$found_so"
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+ haveit=
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+ for x in $rpathdirs; do
|
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+ if test "X$x" = "X$found_dir"; then
|
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+ haveit=yes
|
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+ break
|
|
+ fi
|
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+ done
|
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+ if test -z "$haveit"; then
|
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+ rpathdirs="$rpathdirs $found_dir"
|
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+ fi
|
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+ else
|
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+ haveit=
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+ for x in $LDFLAGS $LIBLZMA; do
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+
|
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+ acl_save_prefix="$prefix"
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+ prefix="$acl_final_prefix"
|
|
+ acl_save_exec_prefix="$exec_prefix"
|
|
+ exec_prefix="$acl_final_exec_prefix"
|
|
+ eval x=\"$x\"
|
|
+ exec_prefix="$acl_save_exec_prefix"
|
|
+ prefix="$acl_save_prefix"
|
|
+
|
|
+ if test "X$x" = "X-L$found_dir"; then
|
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+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }-L$found_dir"
|
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+ fi
|
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+ if test "$hardcode_minus_L" != no; then
|
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$found_so"
|
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+ else
|
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }-l$name"
|
|
+ fi
|
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+ fi
|
|
+ fi
|
|
+ fi
|
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+ else
|
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+ if test "X$found_a" != "X"; then
|
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+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$found_a"
|
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+ else
|
|
+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }-L$found_dir -l$name"
|
|
+ fi
|
|
+ fi
|
|
+ additional_includedir=
|
|
+ case "$found_dir" in
|
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+ */lib | */lib/)
|
|
+ basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 's,/lib/*$,,'`
|
|
+ additional_includedir="$basedir/include"
|
|
+ ;;
|
|
+ esac
|
|
+ if test "X$additional_includedir" != "X"; then
|
|
+ if test "X$additional_includedir" != "X/usr/include"; then
|
|
+ haveit=
|
|
+ if test "X$additional_includedir" = "X/usr/local/include"; then
|
|
+ if test -n "$GCC"; then
|
|
+ case $host_os in
|
|
+ linux*) haveit=yes;;
|
|
+ esac
|
|
+ fi
|
|
+ fi
|
|
+ if test -z "$haveit"; then
|
|
+ for x in $CPPFLAGS $INCLZMA; do
|
|
+
|
|
+ acl_save_prefix="$prefix"
|
|
+ prefix="$acl_final_prefix"
|
|
+ acl_save_exec_prefix="$exec_prefix"
|
|
+ exec_prefix="$acl_final_exec_prefix"
|
|
+ eval x=\"$x\"
|
|
+ exec_prefix="$acl_save_exec_prefix"
|
|
+ prefix="$acl_save_prefix"
|
|
+
|
|
+ if test "X$x" = "X-I$additional_includedir"; then
|
|
+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
|
+ if test -d "$additional_includedir"; then
|
|
+ INCLZMA="${INCLZMA}${INCLZMA:+ }-I$additional_includedir"
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+ if test -n "$found_la"; then
|
|
+ save_libdir="$libdir"
|
|
+ case "$found_la" in
|
|
+ */* | *\\*) . "$found_la" ;;
|
|
+ *) . "./$found_la" ;;
|
|
+ esac
|
|
+ libdir="$save_libdir"
|
|
+ for dep in $dependency_libs; do
|
|
+ case "$dep" in
|
|
+ -L*)
|
|
+ additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
|
|
+ if test "X$additional_libdir" != "X/usr/lib"; then
|
|
+ haveit=
|
|
+ if test "X$additional_libdir" = "X/usr/local/lib"; then
|
|
+ if test -n "$GCC"; then
|
|
+ case $host_os in
|
|
+ linux*) haveit=yes;;
|
|
+ esac
|
|
+ fi
|
|
+ fi
|
|
+ if test -z "$haveit"; then
|
|
+ haveit=
|
|
+ for x in $LDFLAGS $LIBLZMA; do
|
|
+
|
|
+ acl_save_prefix="$prefix"
|
|
+ prefix="$acl_final_prefix"
|
|
+ acl_save_exec_prefix="$exec_prefix"
|
|
+ exec_prefix="$acl_final_exec_prefix"
|
|
+ eval x=\"$x\"
|
|
+ exec_prefix="$acl_save_exec_prefix"
|
|
+ prefix="$acl_save_prefix"
|
|
+
|
|
+ if test "X$x" = "X-L$additional_libdir"; then
|
|
+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
|
+ if test -d "$additional_libdir"; then
|
|
+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }-L$additional_libdir"
|
|
+ fi
|
|
+ fi
|
|
+ haveit=
|
|
+ for x in $LDFLAGS $LTLIBLZMA; do
|
|
+
|
|
+ acl_save_prefix="$prefix"
|
|
+ prefix="$acl_final_prefix"
|
|
+ acl_save_exec_prefix="$exec_prefix"
|
|
+ exec_prefix="$acl_final_exec_prefix"
|
|
+ eval x=\"$x\"
|
|
+ exec_prefix="$acl_save_exec_prefix"
|
|
+ prefix="$acl_save_prefix"
|
|
+
|
|
+ if test "X$x" = "X-L$additional_libdir"; then
|
|
+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
|
+ if test -d "$additional_libdir"; then
|
|
+ LTLIBLZMA="${LTLIBLZMA}${LTLIBLZMA:+ }-L$additional_libdir"
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+ ;;
|
|
+ -R*)
|
|
+ dir=`echo "X$dep" | sed -e 's/^X-R//'`
|
|
+ if test "$enable_rpath" != no; then
|
|
+ haveit=
|
|
+ for x in $rpathdirs; do
|
|
+ if test "X$x" = "X$dir"; then
|
|
+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
|
+ rpathdirs="$rpathdirs $dir"
|
|
+ fi
|
|
+ haveit=
|
|
+ for x in $ltrpathdirs; do
|
|
+ if test "X$x" = "X$dir"; then
|
|
+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
|
+ ltrpathdirs="$ltrpathdirs $dir"
|
|
+ fi
|
|
+ fi
|
|
+ ;;
|
|
+ -l*)
|
|
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
|
|
+ ;;
|
|
+ *.la)
|
|
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
|
|
+ ;;
|
|
+ *)
|
|
+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$dep"
|
|
+ LTLIBLZMA="${LTLIBLZMA}${LTLIBLZMA:+ }$dep"
|
|
+ ;;
|
|
+ esac
|
|
+ done
|
|
+ fi
|
|
+ else
|
|
+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }-l$name"
|
|
+ LTLIBLZMA="${LTLIBLZMA}${LTLIBLZMA:+ }-l$name"
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+ done
|
|
+ done
|
|
+ if test "X$rpathdirs" != "X"; then
|
|
+ if test -n "$hardcode_libdir_separator"; then
|
|
+ alldirs=
|
|
+ for found_dir in $rpathdirs; do
|
|
+ alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
|
|
+ done
|
|
+ acl_save_libdir="$libdir"
|
|
+ libdir="$alldirs"
|
|
+ eval flag=\"$hardcode_libdir_flag_spec\"
|
|
+ libdir="$acl_save_libdir"
|
|
+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$flag"
|
|
+ else
|
|
+ for found_dir in $rpathdirs; do
|
|
+ acl_save_libdir="$libdir"
|
|
+ libdir="$found_dir"
|
|
+ eval flag=\"$hardcode_libdir_flag_spec\"
|
|
+ libdir="$acl_save_libdir"
|
|
+ LIBLZMA="${LIBLZMA}${LIBLZMA:+ }$flag"
|
|
+ done
|
|
+ fi
|
|
+ fi
|
|
+ if test "X$ltrpathdirs" != "X"; then
|
|
+ for found_dir in $ltrpathdirs; do
|
|
+ LTLIBLZMA="${LTLIBLZMA}${LTLIBLZMA:+ }-R$found_dir"
|
|
+ done
|
|
+ fi
|
|
+
|
|
+
|
|
+ ac_save_CPPFLAGS="$CPPFLAGS"
|
|
+
|
|
+ for element in $INCLZMA; do
|
|
+ haveit=
|
|
+ for x in $CPPFLAGS; do
|
|
+
|
|
+ acl_save_prefix="$prefix"
|
|
+ prefix="$acl_final_prefix"
|
|
+ acl_save_exec_prefix="$exec_prefix"
|
|
+ exec_prefix="$acl_final_exec_prefix"
|
|
+ eval x=\"$x\"
|
|
+ exec_prefix="$acl_save_exec_prefix"
|
|
+ prefix="$acl_save_prefix"
|
|
+
|
|
+ if test "X$x" = "X$element"; then
|
|
+ haveit=yes
|
|
+ break
|
|
+ fi
|
|
+ done
|
|
+ if test -z "$haveit"; then
|
|
+ CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
|
|
+ fi
|
|
+ done
|
|
+
|
|
+
|
|
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for liblzma" >&5
|
|
+$as_echo_n "checking for liblzma... " >&6; }
|
|
+if test "${ac_cv_liblzma+set}" = set; then :
|
|
+ $as_echo_n "(cached) " >&6
|
|
+else
|
|
+
|
|
+ ac_save_LIBS="$LIBS"
|
|
+ LIBS="$LIBS $LIBLZMA"
|
|
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
|
+/* end confdefs.h. */
|
|
+#include "lzma.h"
|
|
+int
|
|
+main ()
|
|
+{
|
|
+lzma_index_iter iter;
|
|
+ lzma_index_iter_init (&iter, 0);
|
|
+ lzma_mf_is_supported (LZMA_MF_HC3);
|
|
+ ;
|
|
+ return 0;
|
|
+}
|
|
+_ACEOF
|
|
+if ac_fn_c_try_link "$LINENO"; then :
|
|
+ ac_cv_liblzma=yes
|
|
+else
|
|
+ ac_cv_liblzma=no
|
|
+fi
|
|
+rm -f core conftest.err conftest.$ac_objext \
|
|
+ conftest$ac_exeext conftest.$ac_ext
|
|
+ LIBS="$ac_save_LIBS"
|
|
+
|
|
+fi
|
|
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_liblzma" >&5
|
|
+$as_echo "$ac_cv_liblzma" >&6; }
|
|
+ if test "$ac_cv_liblzma" = yes; then
|
|
+ HAVE_LIBLZMA=yes
|
|
+
|
|
+$as_echo "#define HAVE_LIBLZMA 1" >>confdefs.h
|
|
+
|
|
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with liblzma" >&5
|
|
+$as_echo_n "checking how to link with liblzma... " >&6; }
|
|
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBLZMA" >&5
|
|
+$as_echo "$LIBLZMA" >&6; }
|
|
+ else
|
|
+ HAVE_LIBLZMA=no
|
|
+ CPPFLAGS="$ac_save_CPPFLAGS"
|
|
+ LIBLZMA=
|
|
+ LTLIBLZMA=
|
|
+ fi
|
|
+
|
|
+
|
|
+
|
|
+
|
|
+
|
|
+
|
|
+ if test "$HAVE_LIBLZMA" != yes; then
|
|
+ if test "$with_lzma" = yes; then
|
|
+ as_fn_error "missing liblzma for --with-lzma" "$LINENO" 5
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+fi
|
|
+
|
|
LIBGUI="../libgui/src/libgui.a"
|
|
GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
|
|
|
|
Index: gdb-7.4.91.20120801/gdb/configure.ac
|
|
===================================================================
|
|
--- gdb-7.4.91.20120801.orig/gdb/configure.ac 2012-08-01 18:45:21.000000000 +0200
|
|
+++ gdb-7.4.91.20120801/gdb/configure.ac 2012-08-01 18:47:05.704820577 +0200
|
|
@@ -2196,6 +2196,27 @@ LIBS=$OLD_LIBS
|
|
# Add any host-specific objects to GDB.
|
|
CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
|
|
|
|
+# If building on ELF, look for lzma support for embedded compressed debug info.
|
|
+if test $gdb_cv_var_elf = yes; then
|
|
+ AC_ARG_WITH(lzma,
|
|
+ AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
|
|
+ [], [with_lzma=auto])
|
|
+ AC_MSG_CHECKING([whether to use lzma])
|
|
+ AC_MSG_RESULT([$with_lzma])
|
|
+
|
|
+ if test "${with_lzma}" != no; then
|
|
+ AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
|
|
+ [lzma_index_iter iter;
|
|
+ lzma_index_iter_init (&iter, 0);
|
|
+ lzma_mf_is_supported (LZMA_MF_HC3);])
|
|
+ if test "$HAVE_LIBLZMA" != yes; then
|
|
+ if test "$with_lzma" = yes; then
|
|
+ AC_MSG_ERROR([missing liblzma for --with-lzma])
|
|
+ fi
|
|
+ fi
|
|
+ fi
|
|
+fi
|
|
+
|
|
LIBGUI="../libgui/src/libgui.a"
|
|
GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
|
|
AC_SUBST(LIBGUI)
|
|
Index: gdb-7.4.91.20120801/gdb/elfread.c
|
|
===================================================================
|
|
--- gdb-7.4.91.20120801.orig/gdb/elfread.c 2012-08-01 18:44:51.000000000 +0200
|
|
+++ gdb-7.4.91.20120801/gdb/elfread.c 2012-08-01 18:57:59.528202398 +0200
|
|
@@ -51,6 +51,10 @@
|
|
#include "observer.h"
|
|
#include "elf/external.h"
|
|
#include <sys/stat.h>
|
|
+#include "gdbcore.h"
|
|
+#ifdef HAVE_LIBLZMA
|
|
+# include <lzma.h>
|
|
+#endif
|
|
|
|
extern void _initialize_elfread (void);
|
|
|
|
@@ -2210,6 +2214,262 @@ find_separate_debug_file_by_buildid (str
|
|
return NULL;
|
|
}
|
|
|
|
+#ifdef HAVE_LIBLZMA
|
|
+
|
|
+/* Custom lzma_allocator.alloc so they use the gdb ones. */
|
|
+
|
|
+static void *
|
|
+alloc_lzma (void *opaque, size_t nmemb, size_t size)
|
|
+{
|
|
+ return xmalloc (nmemb * size);
|
|
+}
|
|
+
|
|
+/* Custom lzma_allocator.free so they use the gdb ones. */
|
|
+
|
|
+static void
|
|
+free_lzma (void *opaque, void *ptr)
|
|
+{
|
|
+ xfree (ptr);
|
|
+}
|
|
+
|
|
+/* It cannot be const due to the lzma library function prototypes. */
|
|
+
|
|
+static lzma_allocator gdb_lzma_allocator = { alloc_lzma, free_lzma, NULL};
|
|
+
|
|
+/* Custom bfd_openr_iovec implementation to read compressed data from a
|
|
+ section. This keeps only the last decompressed block in memory to
|
|
+ allow larger data without using to much memory. */
|
|
+
|
|
+struct lzma_stream
|
|
+{
|
|
+ /* Section of input BFD we are decoding data from. */
|
|
+ asection *section;
|
|
+
|
|
+ /* lzma library decompression state. */
|
|
+ lzma_index *index;
|
|
+
|
|
+ /* Currently decoded block. */
|
|
+ bfd_size_type data_start;
|
|
+ bfd_size_type data_end;
|
|
+ gdb_byte *data;
|
|
+};
|
|
+
|
|
+/* bfd_openr_iovec OPEN_P implementation for
|
|
+ find_separate_debug_file_in_section. OPEN_CLOSURE is 'asection *' of the
|
|
+ section to decompress.
|
|
+
|
|
+ Return 'struct lzma_stream *' must be freed by caller by xfree, together
|
|
+ with its INDEX lzma data. */
|
|
+
|
|
+static void *
|
|
+lzma_open (struct bfd *nbfd, void *open_closure)
|
|
+{
|
|
+ asection *section = open_closure;
|
|
+ bfd_size_type size, offset;
|
|
+ lzma_stream_flags options;
|
|
+ gdb_byte footer[LZMA_STREAM_HEADER_SIZE];
|
|
+ gdb_byte *indexdata;
|
|
+ lzma_index *index;
|
|
+ int ret;
|
|
+ uint64_t memlimit = UINT64_MAX;
|
|
+ struct lzma_stream *lstream;
|
|
+ size_t pos;
|
|
+
|
|
+ size = bfd_get_section_size (section);
|
|
+ offset = section->filepos + size - LZMA_STREAM_HEADER_SIZE;
|
|
+ if (size < LZMA_STREAM_HEADER_SIZE
|
|
+ || bfd_seek (section->owner, offset, SEEK_SET) != 0
|
|
+ || bfd_bread (footer, LZMA_STREAM_HEADER_SIZE, section->owner)
|
|
+ != LZMA_STREAM_HEADER_SIZE
|
|
+ || lzma_stream_footer_decode (&options, footer) != LZMA_OK
|
|
+ || offset < options.backward_size)
|
|
+ {
|
|
+ bfd_set_error (bfd_error_wrong_format);
|
|
+ return NULL;
|
|
+ }
|
|
+
|
|
+ offset -= options.backward_size;
|
|
+ indexdata = xmalloc (options.backward_size);
|
|
+ index = NULL;
|
|
+ pos = 0;
|
|
+ if (bfd_seek (section->owner, offset, SEEK_SET) != 0
|
|
+ || bfd_bread (indexdata, options.backward_size, section->owner)
|
|
+ != options.backward_size
|
|
+ || lzma_index_buffer_decode (&index, &memlimit, &gdb_lzma_allocator,
|
|
+ indexdata, &pos, options.backward_size)
|
|
+ != LZMA_OK
|
|
+ || lzma_index_size (index) != options.backward_size)
|
|
+ {
|
|
+ xfree (indexdata);
|
|
+ bfd_set_error (bfd_error_wrong_format);
|
|
+ return NULL;
|
|
+ }
|
|
+ xfree (indexdata);
|
|
+
|
|
+ lstream = xzalloc (sizeof (struct lzma_stream));
|
|
+ lstream->section = section;
|
|
+ lstream->index = index;
|
|
+
|
|
+ return lstream;
|
|
+}
|
|
+
|
|
+/* bfd_openr_iovec PREAD_P implementation for
|
|
+ find_separate_debug_file_in_section. Passed STREAM
|
|
+ is 'struct lzma_stream *'. */
|
|
+
|
|
+static file_ptr
|
|
+lzma_pread (struct bfd *nbfd, void *stream, void *buf, file_ptr nbytes,
|
|
+ file_ptr offset)
|
|
+{
|
|
+ struct lzma_stream *lstream = stream;
|
|
+ bfd_size_type chunk_size;
|
|
+ lzma_index_iter iter;
|
|
+ gdb_byte *compressed, *uncompressed;
|
|
+ file_ptr block_offset;
|
|
+ lzma_filter filters[LZMA_FILTERS_MAX + 1];
|
|
+ lzma_block block;
|
|
+ size_t compressed_pos, uncompressed_pos;
|
|
+ file_ptr res;
|
|
+
|
|
+ res = 0;
|
|
+ while (nbytes > 0)
|
|
+ {
|
|
+ if (lstream->data == NULL
|
|
+ || lstream->data_start > offset || offset >= lstream->data_end)
|
|
+ {
|
|
+ asection *section = lstream->section;
|
|
+
|
|
+ lzma_index_iter_init (&iter, lstream->index);
|
|
+ if (lzma_index_iter_locate (&iter, offset))
|
|
+ break;
|
|
+
|
|
+ compressed = xmalloc (iter.block.total_size);
|
|
+ block_offset = section->filepos + iter.block.compressed_file_offset;
|
|
+ if (bfd_seek (section->owner, block_offset, SEEK_SET) != 0
|
|
+ || bfd_bread (compressed, iter.block.total_size, section->owner)
|
|
+ != iter.block.total_size)
|
|
+ {
|
|
+ xfree (compressed);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ uncompressed = xmalloc (iter.block.uncompressed_size);
|
|
+
|
|
+ memset (&block, 0, sizeof (block));
|
|
+ block.filters = filters;
|
|
+ block.header_size = lzma_block_header_size_decode (compressed[0]);
|
|
+ if (lzma_block_header_decode (&block, &gdb_lzma_allocator, compressed)
|
|
+ != LZMA_OK)
|
|
+ {
|
|
+ xfree (compressed);
|
|
+ xfree (uncompressed);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ compressed_pos = block.header_size;
|
|
+ uncompressed_pos = 0;
|
|
+ if (lzma_block_buffer_decode (&block, &gdb_lzma_allocator,
|
|
+ compressed, &compressed_pos,
|
|
+ iter.block.total_size,
|
|
+ uncompressed, &uncompressed_pos,
|
|
+ iter.block.uncompressed_size)
|
|
+ != LZMA_OK)
|
|
+ {
|
|
+ xfree (compressed);
|
|
+ xfree (uncompressed);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ xfree (compressed);
|
|
+
|
|
+ xfree (lstream->data);
|
|
+ lstream->data = uncompressed;
|
|
+ lstream->data_start = iter.block.uncompressed_file_offset;
|
|
+ lstream->data_end = (iter.block.uncompressed_file_offset
|
|
+ + iter.block.uncompressed_size);
|
|
+ }
|
|
+
|
|
+ chunk_size = min (nbytes, lstream->data_end - offset);
|
|
+ memcpy (buf, lstream->data + offset - lstream->data_start, chunk_size);
|
|
+ buf = (gdb_byte *) buf + chunk_size;
|
|
+ offset += chunk_size;
|
|
+ nbytes -= chunk_size;
|
|
+ res += chunk_size;
|
|
+ }
|
|
+
|
|
+ return res;
|
|
+}
|
|
+
|
|
+/* bfd_openr_iovec CLOSE_P implementation for
|
|
+ find_separate_debug_file_in_section. Passed STREAM
|
|
+ is 'struct lzma_stream *'. */
|
|
+
|
|
+static int
|
|
+lzma_close (struct bfd *nbfd,
|
|
+ void *stream)
|
|
+{
|
|
+ struct lzma_stream *lstream = stream;
|
|
+
|
|
+ lzma_index_end (lstream->index, &gdb_lzma_allocator);
|
|
+ xfree (lstream->data);
|
|
+ xfree (lstream);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+/* bfd_openr_iovec STAT_P implementation for
|
|
+ find_separate_debug_file_in_section. Passed STREAM
|
|
+ is 'struct lzma_stream *'. */
|
|
+
|
|
+static int
|
|
+lzma_stat (struct bfd *abfd,
|
|
+ void *stream,
|
|
+ struct stat *sb)
|
|
+{
|
|
+ struct lzma_stream *lstream = stream;
|
|
+
|
|
+ sb->st_size = lzma_index_uncompressed_size (lstream->index);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+/* This looks for a xz compressed separate debug info object file embedded
|
|
+ in a section called .gnu_debugdata. If we find one we create a iovec
|
|
+ based bfd that decompresses the object data on demand. */
|
|
+
|
|
+static bfd *
|
|
+find_separate_debug_file_in_section (struct objfile *objfile)
|
|
+{
|
|
+ asection *section;
|
|
+ bfd *abfd;
|
|
+
|
|
+ section = bfd_get_section_by_name (objfile->obfd, ".gnu_debugdata");
|
|
+ if (section == NULL)
|
|
+ return NULL;
|
|
+
|
|
+ /* objfile->NAME lifetime is longer than the ABFD's lifetime. */
|
|
+ abfd = gdb_bfd_openr_iovec (objfile->name, gnutarget, lzma_open, section,
|
|
+ lzma_pread, lzma_close, lzma_stat);
|
|
+ if (abfd == NULL)
|
|
+ return NULL;
|
|
+
|
|
+ if (!bfd_check_format (abfd, bfd_object))
|
|
+ {
|
|
+ gdb_bfd_unref (abfd);
|
|
+ return NULL;
|
|
+ }
|
|
+
|
|
+ return abfd;
|
|
+}
|
|
+
|
|
+#else /* !HAVE_LIBLZMA */
|
|
+
|
|
+static bfd *
|
|
+find_separate_debug_file_in_section (struct objfile *objfile)
|
|
+{
|
|
+ return NULL;
|
|
+}
|
|
+
|
|
+#endif /* !HAVE_LIBLZMA */
|
|
+
|
|
/* Scan and build partial symbols for a symbol file.
|
|
We have been initialized by a call to elf_symfile_init, which
|
|
currently does nothing.
|
|
@@ -2433,6 +2693,8 @@ elf_symfile_read (struct objfile *objfil
|
|
else if (!objfile_has_partial_symbols (objfile))
|
|
{
|
|
char *debugfile, *build_id_filename;
|
|
+ bfd *abfd = NULL;
|
|
+ struct cleanup *cleanup;
|
|
|
|
debugfile = find_separate_debug_file_by_buildid (objfile,
|
|
&build_id_filename);
|
|
@@ -2440,14 +2702,11 @@ elf_symfile_read (struct objfile *objfil
|
|
if (debugfile == NULL)
|
|
debugfile = find_separate_debug_file_by_debuglink (objfile);
|
|
|
|
+ cleanup = make_cleanup (xfree, debugfile);
|
|
if (debugfile)
|
|
{
|
|
- struct cleanup *cleanup = make_cleanup (xfree, debugfile);
|
|
- bfd *abfd = symfile_bfd_open (debugfile);
|
|
-
|
|
+ abfd = symfile_bfd_open (debugfile);
|
|
make_cleanup_bfd_unref (abfd);
|
|
- symbol_file_add_separate (abfd, symfile_flags, objfile);
|
|
- do_cleanups (cleanup);
|
|
}
|
|
/* Check if any separate debug info has been extracted out. */
|
|
else if (bfd_get_section_by_name (objfile->obfd, ".gnu_debuglink")
|
|
@@ -2455,6 +2714,17 @@ elf_symfile_read (struct objfile *objfil
|
|
debug_print_missing (objfile->name, build_id_filename);
|
|
|
|
xfree (build_id_filename);
|
|
+
|
|
+ if (abfd == NULL)
|
|
+ {
|
|
+ abfd = find_separate_debug_file_in_section (objfile);
|
|
+ make_cleanup_bfd_unref (abfd);
|
|
+ }
|
|
+
|
|
+ if (abfd != NULL)
|
|
+ symbol_file_add_separate (abfd, symfile_flags, objfile);
|
|
+
|
|
+ do_cleanups (cleanup);
|
|
}
|
|
|
|
if (symtab_create_debug)
|
|
Index: gdb-7.4.91.20120801/gdb/testsuite/gdb.dwarf2/dw2-gnu-debugdata.c
|
|
===================================================================
|
|
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
|
|
+++ gdb-7.4.91.20120801/gdb/testsuite/gdb.dwarf2/dw2-gnu-debugdata.c 2012-08-01 18:47:05.705820572 +0200
|
|
@@ -0,0 +1,30 @@
|
|
+/* This testcase is part of GDB, the GNU debugger.
|
|
+
|
|
+ Copyright 2012 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 <signal.h>
|
|
+
|
|
+static int
|
|
+debugdata_function (void)
|
|
+{
|
|
+ return raise (SIGSEGV) + 1;
|
|
+}
|
|
+
|
|
+int
|
|
+main (void)
|
|
+{
|
|
+ return debugdata_function () + 1;
|
|
+}
|
|
Index: gdb-7.4.91.20120801/gdb/testsuite/gdb.dwarf2/dw2-gnu-debugdata.exp
|
|
===================================================================
|
|
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
|
|
+++ gdb-7.4.91.20120801/gdb/testsuite/gdb.dwarf2/dw2-gnu-debugdata.exp 2012-08-01 18:47:05.705820572 +0200
|
|
@@ -0,0 +1,91 @@
|
|
+# Copyright 2012 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/>.
|
|
+
|
|
+standard_testfile
|
|
+
|
|
+load_lib dwarf.exp
|
|
+if ![dwarf2_support] {
|
|
+ return 0
|
|
+}
|
|
+
|
|
+if [build_executable ${testfile}.exp $testfile] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+proc run { test cmdline } {
|
|
+ verbose "cmdline is $cmdline"
|
|
+ set result [catch "exec $cmdline" output]
|
|
+ verbose "result is $result"
|
|
+ verbose "output is $output"
|
|
+ if {$result == 0} {
|
|
+ pass $test
|
|
+ return 0
|
|
+ } else {
|
|
+ fail $test
|
|
+ return -1
|
|
+ }
|
|
+}
|
|
+
|
|
+set strip_program [transform strip]
|
|
+set nm_program [transform nm]
|
|
+
|
|
+# Extract the dynamic symbols from the main binary, there is no need to also have these
|
|
+# in the normal symbol table
|
|
+file delete -- ${binfile}.dynsyms
|
|
+if [run "nm -D" "[transform nm] -D ${binfile} --format=posix --defined-only | awk \\{print\\ \\\$1\\} | sort > ${binfile}.dynsyms"] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+# Extract all the text (i.e. function) symbols from the debuginfo
|
|
+file delete -- ${binfile}.funcsyms
|
|
+if [run "nm" "[transform nm] ${binfile} --format=posix --defined-only | awk \\{if(\\\$2==\"T\"||\\\$2==\"t\")print\\ \\\$1\\} | sort > ${binfile}.funcsyms"] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+# Keep all the function symbols not already in the dynamic symbol table
|
|
+file delete -- ${binfile}.keep_symbols
|
|
+if [run "comm" "comm -13 ${binfile}.dynsyms ${binfile}.funcsyms > ${binfile}.keep_symbols"] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+# Copy the full debuginfo, keeping only a minumal set of symbols and removing some unnecessary sections
|
|
+file delete -- ${binfile}.mini_debuginfo
|
|
+if [run "objcopy 1" "[transform objcopy] -S --remove-section .gdb_index --remove-section .comment --keep-symbols=${binfile}.keep_symbols ${binfile} ${binfile}.mini_debuginfo"] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+# GDB specific - we do not have split executable in advance.
|
|
+file delete -- ${binfile}.strip
|
|
+if [run "strip" "[transform strip] --strip-all -o ${binfile}.strip ${binfile}"] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+# Inject the compressed data into the .gnu_debugdata section of the original binary
|
|
+file delete -- ${binfile}.mini_debuginfo.xz
|
|
+if [run "xz" "xz ${binfile}.mini_debuginfo"] {
|
|
+ return -1
|
|
+}
|
|
+file delete -- ${binfile}.test
|
|
+if [run "objcopy 2" "[transform objcopy] --add-section .gnu_debugdata=${binfile}.mini_debuginfo.xz ${binfile}.strip ${binfile}.test"] {
|
|
+ return -1
|
|
+}
|
|
+
|
|
+clean_restart "$testfile.strip"
|
|
+
|
|
+gdb_test "p debugdata_function" {No symbol table is loaded\. Use the "file" command\.} "no symtab"
|
|
+
|
|
+clean_restart "$testfile.test"
|
|
+
|
|
+gdb_test "p debugdata_function" { = {<text variable, no debug info>} 0x[0-9a-f]+ <debugdata_function>} "have symtab"
|