mirror of
https://github.com/libunwind/libunwind.git
synced 2026-01-12 00:04:03 +08:00
f75061c3b6
The function in this source file was never used anywhere (`unw_tdep_getcontext()` is a macro generating inline asm for arm). It also fails to build from source for any OS other than Linux and FreeBSD. Removed the file and checks for the symbol.
446 lines
12 KiB
Bash
446 lines
12 KiB
Bash
#!/bin/sh
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#
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# This file is part of libunwind.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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verbose=false
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if [ "$1" = "-v" ]; then
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verbose=true
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shift
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fi
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build_plat=@build_arch@
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plat=@arch@
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os=@target_os@
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num_errors=0
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: ${LIBUNWIND:=../src/.libs/libunwind.so}
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: ${LIBUNWIND_GENERIC:=../src/.libs/libunwind-${plat}.so}
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fetch_symtab () {
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filename=$1
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if [ ! -r $filename ]; then
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return
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fi
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if $verbose; then
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echo "Checking $filename..."
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fi
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#
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# Unfortunately, "nm --defined" is a GNU-extension. For portability,
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# build the list of defined symbols by hand.
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#
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symtab=`nm -g $filename`
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saved_IFS="$IFS"
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IFS=""
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undef=`nm -g -u $filename`
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for line in $undef; do
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symtab=`echo "$symtab" | grep -v "^${line}"\$`
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done;
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IFS="$saved_IFS"
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}
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ignore () {
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sym=$1
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symtab=`echo "$symtab" | grep -v " ${sym}\$"`
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}
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match () {
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sym=$1
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if `echo "$symtab" | grep -q " ${sym}\$"`; then
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symtab=`echo "$symtab" | grep -v " ${sym}\$"`
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else
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echo " ERROR: Symbol \"$sym\" missing."
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num_errors=`expr $num_errors + 1`
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fi
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}
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#
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# Filter out miscellaneous symbols that get defined by the
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# linker for each shared object.
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#
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filter_misc () {
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ignore _DYNAMIC
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ignore _GLOBAL_OFFSET_TABLE_
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ignore __bss_start
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ignore _edata
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ignore _end
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ignore _Uelf32_get_proc_name
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ignore _Uelf32_valid_object
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ignore _Uelf64_get_proc_name
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ignore _Uelf64_valid_object
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ignore _U.*debug_level
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ignore ICRT.INTERNAL # ICC 8.x defines this
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# Ignore symbols generated by the ARM Linux default linker script.
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# For details see the binutils sources (src/ld/emulparams/armelf_linux.sh).
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case "$plat}" in
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arm*|aarch64*)
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ignore __bss_start__
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ignore __bss_end__
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ignore __end__
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ignore _bss_end__
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;;
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mips*)
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ignore _fbss
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ignore _fdata
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ignore _ftext
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ignore _gp
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;;
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loongarch64)
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ignore _fbss
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ignore _fdata
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ignore _ftext
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ignore _gp
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;;
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esac
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case "${os}" in
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solaris2.11)
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ignore _PROCEDURE_LINKAGE_TABLE_
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ignore _etext
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;;
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nto*)
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ignore _btext
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;;
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esac
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}
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check_local_unw_abi () {
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match _UL${plat}_apply_reg_state
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match _UL${plat}_reg_states_iterate
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match _UL${plat}_create_addr_space
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match _UL${plat}_destroy_addr_space
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match _UL${plat}_get_fpreg
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match _UL${plat}_get_proc_info
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match _UL${plat}_get_proc_info_by_ip
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match _UL${plat}_get_proc_info_in_range
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match _UL${plat}_get_proc_name
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match _UL${plat}_get_proc_name_by_ip
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match _UL${plat}_get_elf_filename
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match _UL${plat}_get_elf_filename_by_ip
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match _UL${plat}_get_reg
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match _UL${plat}_get_save_loc
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match _UL${plat}_init_local
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match _UL${plat}_init_local2
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match _UL${plat}_init_remote
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match _UL${plat}_is_plt_entry
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match _UL${plat}_is_signal_frame
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match _UL${plat}_local_addr_space
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match _UL${plat}_resume
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match _UL${plat}_set_iterate_phdr_function
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match _UL${plat}_set_caching_policy
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match _UL${plat}_set_cache_size
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match _UL${plat}_set_reg
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match _UL${plat}_set_fpreg
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match _UL${plat}_step
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match _U${plat}_flush_cache
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match _U${plat}_get_accessors
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_regname
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match _U${plat}_strerror
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match _U_dyn_cancel
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match _U_dyn_info_list_addr
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match _U_dyn_register
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match unw_backtrace
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@CONFIG_WEAK_BACKTRACE_TRUE@match backtrace
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match unw_backtrace2
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case ${plat} in
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arm)
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match _U${plat}_is_fpreg
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match _UL${plat}_unwind_method
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match _UL${plat}_search_unwind_table
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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;;
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hppa)
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match _U${plat}_getcontext
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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match _U${plat}_setcontext
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;;
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ia64)
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match _U${plat}_getcontext
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match _UL${plat}_search_unwind_table
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;;
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x86)
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match _U${plat}_getcontext
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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;;
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x86_64)
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match _U${plat}_getcontext
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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match _U${plat}_setcontext
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;;
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ppc*)
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match _U${plat}_getcontext
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match _U${plat}_get_func_addr
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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;;
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s390x)
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match _U${plat}_getcontext
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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match _U${plat}_setcontext
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;;
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riscv)
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match _U${plat}_getcontext
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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match _U${plat}_setcontext
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;;
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loongarch64)
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match _U${plat}_getcontext
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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;;
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*)
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match _U${plat}_is_fpreg
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match _UL${plat}_dwarf_search_unwind_table
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match _UL${plat}_dwarf_find_unwind_table
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;;
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esac
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if [ x@enable_debug_frame@ = xyes ]; then
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match _UL${plat}_dwarf_find_debug_frame
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fi
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}
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check_generic_unw_abi () {
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match _U${plat}_apply_reg_state
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match _U${plat}_reg_states_iterate
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match _U${plat}_create_addr_space
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match _U${plat}_destroy_addr_space
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match _U${plat}_flush_cache
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match _U${plat}_get_accessors
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match _U${plat}_get_fpreg
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match _U${plat}_get_proc_info
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match _U${plat}_get_proc_info_by_ip
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match _U${plat}_get_proc_info_in_range
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match _U${plat}_get_proc_name
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match _U${plat}_get_proc_name_by_ip
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match _U${plat}_get_elf_filename
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match _U${plat}_get_elf_filename_by_ip
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match _U${plat}_get_reg
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match _U${plat}_get_save_loc
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match _U${plat}_init_local
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match _U${plat}_init_local2
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match _U${plat}_init_remote
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match _U${plat}_is_plt_entry
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match _U${plat}_is_signal_frame
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match _U${plat}_local_addr_space
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match _U${plat}_regname
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match _U${plat}_resume
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match _U${plat}_set_iterate_phdr_function
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match _U${plat}_set_caching_policy
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match _U${plat}_set_cache_size
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match _U${plat}_set_fpreg
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match _U${plat}_set_reg
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match _U${plat}_step
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match _U${plat}_strerror
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case ${plat} in
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aarch64)
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match _U${plat}_is_fpreg
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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arm)
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match _U${plat}_is_fpreg
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match _U${plat}_unwind_method
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_search_unwind_table
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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hppa)
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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;;
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ia64)
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match _U${plat}_search_unwind_table
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match _U${plat}_find_dyn_list
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if [ $plat = $build_plat ]; then
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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case $os in
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linux*)
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match _U${plat}_get_kernel_table
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;;
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esac
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fi
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;;
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x86)
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_is_fpreg
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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x86_64)
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_is_fpreg
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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ppc*)
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_get_func_addr
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match _U${plat}_is_fpreg
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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s390x)
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match _U${plat}_is_fpreg
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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riscv)
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_is_fpreg
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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loongarch64)
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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match _U${plat}_is_fpreg
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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;;
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*)
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match _U${plat}_is_fpreg
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match _U${plat}_dwarf_search_unwind_table
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match _U${plat}_dwarf_find_unwind_table
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match _U${plat}_get_elf_image
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match _U${plat}_get_exe_image_path
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;;
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esac
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if [ x@enable_debug_frame@ = xyes ]; then
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match _U${plat}_dwarf_find_debug_frame
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fi
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}
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check_cxx_abi () {
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match _Unwind_Backtrace
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match _Unwind_DeleteException
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match _Unwind_FindEnclosingFunction
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match _Unwind_ForcedUnwind
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match _Unwind_GetBSP
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match _Unwind_GetCFA
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match _Unwind_GetDataRelBase
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match _Unwind_GetGR
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match _Unwind_GetIP
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match _Unwind_GetIPInfo
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match _Unwind_GetLanguageSpecificData
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match _Unwind_GetRegionStart
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match _Unwind_GetTextRelBase
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match _Unwind_RaiseException
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match _Unwind_Resume
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match _Unwind_Resume_or_Rethrow
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match _Unwind_SetGR
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match _Unwind_SetIP
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match __libunwind_Unwind_Backtrace
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match __libunwind_Unwind_DeleteException
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match __libunwind_Unwind_FindEnclosingFunction
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match __libunwind_Unwind_ForcedUnwind
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match __libunwind_Unwind_GetBSP
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match __libunwind_Unwind_GetCFA
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match __libunwind_Unwind_GetDataRelBase
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match __libunwind_Unwind_GetGR
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match __libunwind_Unwind_GetIP
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match __libunwind_Unwind_GetIPInfo
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match __libunwind_Unwind_GetLanguageSpecificData
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match __libunwind_Unwind_GetRegionStart
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match __libunwind_Unwind_GetTextRelBase
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match __libunwind_Unwind_RaiseException
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match __libunwind_Unwind_Resume
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match __libunwind_Unwind_Resume_or_Rethrow
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match __libunwind_Unwind_SetGR
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match __libunwind_Unwind_SetIP
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case $os in
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linux*)
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# needed only for Intel 8.0 bug-compatibility
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match _ReadSLEB
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match _ReadULEB
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;;
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esac
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}
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check_empty () {
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if [ -n "$symtab" ]; then
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printf " ERROR: Extraneous symbols:\n$symtab\n"
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num_errors=`expr $num_errors + 1`
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fi
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}
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if [ $plat = $build_plat ]; then
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fetch_symtab $LIBUNWIND
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filter_misc
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check_local_unw_abi
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if [ x@enable_cxx_exceptions@ = xyes ]; then
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check_cxx_abi
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fi
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check_empty
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fi
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fetch_symtab $LIBUNWIND_GENERIC
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filter_misc
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check_generic_unw_abi
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check_empty
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if [ $num_errors -gt 0 ]; then
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echo "FAILURE: Detected $num_errors errors"
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exit 1
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fi
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if $verbose; then
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echo " SUCCESS: all checks passed"
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fi
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exit 0
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