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Tom de Vries 76547ab31b [gdb] Fix segfault in solib_contains_address_p
Starting commit bb2a67773c "Use a std::vector in target_section_table" we run
into:
...
ERROR: GDB process no longer exists
GDB process exited with wait status 22239 exp12 0 0 CHILDKILLED SIGABRT
UNRESOLVED: gdb.base/exec-invalid-sysroot.exp: continue to exec catchpoint
...
which reproduces as:
...
Thread 1 "gdb" received signal SIGSEGV, Segmentation fault.
solib_contains_address_p (address=4196111, solib=0x1dd9970)
    at /home/vries/gdb_versions/devel/src/gdb/solib.c:1120
1120      for (target_section &p : solib->sections->sections)
(gdb) p solib->sections->sections
Cannot access memory at address 0x0
...

Fix this by handling solib->sections == nullptr in solib_contains_address_p.

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-10-14  Tom de Vries  <tdevries@suse.de>

	PR gdb/26733
	* solib.c (solib_contains_address_p): Handle
	'solib->sections == nullptr'.
2020-10-14 12:24:42 +02:00
bfd Automatic date update in version.in 2020-10-14 00:00:10 +00:00
binutils x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker 2020-10-09 05:13:26 -07:00
config
contrib Import mklog.py from gcc repo 2020-09-25 10:24:44 -04:00
cpu Fix spelling mistakes 2020-10-05 14:20:15 +01:00
elfcpp gold: Update GNU_PROPERTY_X86_XXX macros 2020-10-13 05:21:05 -07:00
etc
gas x86: Rename VexOpcode to OpcodePrefix 2020-10-13 19:29:09 -07:00
gdb [gdb] Fix segfault in solib_contains_address_p 2020-10-14 12:24:42 +02:00
gdbserver Remove unneeded netbsd_add_process() 2020-10-13 16:28:29 +02:00
gdbsupport gdb: Have allocate_target_description return a unique_ptr 2020-10-08 10:14:14 +01:00
gnulib gnulib: Ensure all libraries are used when building gdb/gdbserver 2020-10-09 09:31:43 +01:00
gold gold: Skip some incremental tests 2020-10-13 05:23:13 -07:00
gprof
include x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker 2020-10-09 05:13:26 -07:00
intl
ld x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker 2020-10-09 05:13:26 -07:00
libctf
libdecnumber
libiberty Sync libiberty and include with GCC for get_DW_UT_name. 2020-09-24 22:55:24 +02:00
opcodes x86: Rename VexOpcode to OpcodePrefix 2020-10-13 19:29:09 -07:00
readline
sim sim: Fix autoreconf errors in sim/ directory 2020-10-06 11:29:44 +01:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
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If you are receiving this as part of a GDB release, see the file gdb/README.
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	./configure 
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A similar example using csh:

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