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gcc/libgcc/config
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Raphael Moreira Zinsly b7561b5d24 libgcc: Add a backchain fallback to _Unwind_Backtrace() on PowerPC 
Without dwarf2 unwind tables available _Unwind_Backtrace() is not
able to return the full backtrace.
This patch adds a fallback function on powerpc to get the backtrace
by doing a backchain, this code was originally at glibc.

libgcc/ChangeLog:

	* config/rs6000/linux-unwind.h (struct rt_sigframe): Move it to
	outside of get_regs() in order to use it in another function, this
	is done twice: for __powerpc64__ and for !__powerpc64__.
	(struct trace_arg): New struct.
	(struct layout): New struct.
	(ppc_backchain_fallback): New function.
	* unwind.inc (_Unwind_Backtrace): Look for _URC_NORMAL_STOP code
	state and call MD_BACKCHAIN_FALLBACK.

gcc/testsuite/ChangeLog:

	* gcc.target/powerpc/unwind-backchain.c: New test.
2021-10-14 20:00:44 +00:00
..
aarch64 libgcc: Add missing runtime exception notices 2021-08-31 10:56:34 +01:00
alpha Update copyright years. 2021-01-04 10:26:59 +01:00
arc Update copyright years. 2021-01-04 10:26:59 +01:00
arm arm: add erratum mitigation to __gnu_cmse_nonsecure_call [PR102035] 2021-08-24 11:45:13 +01:00
avr Update copyright years. 2021-01-04 10:26:59 +01:00
bfin Update copyright years. 2021-01-04 10:26:59 +01:00
bpf
c6x Update copyright years. 2021-01-04 10:26:59 +01:00
cr16 Update copyright years. 2021-01-04 10:26:59 +01:00
cris Update copyright years. 2021-01-04 10:26:59 +01:00
csky Update copyright years. 2021-01-04 10:26:59 +01:00
epiphany Update copyright years. 2021-01-04 10:26:59 +01:00
fr30 Update copyright years. 2021-01-04 10:26:59 +01:00
frv libgcc: Add missing runtime exception notices 2021-08-31 10:56:34 +01:00
ft32 Update copyright years. 2021-01-04 10:26:59 +01:00
gcn amdgcn: Enable support for TImode for AMD GCN 2021-06-29 08:19:56 -07:00
h8300 Update copyright years. 2021-01-04 10:26:59 +01:00
i386 libgcc: use .init_stack for constructors if available 2021-10-07 20:24:43 -07:00
ia64 Update copyright years. 2021-01-04 10:26:59 +01:00
iq2000 Update copyright years. 2021-01-04 10:26:59 +01:00
libbid Update copyright years. 2021-01-04 10:26:59 +01:00
lm32 Update copyright years. 2021-01-04 10:26:59 +01:00
m32c Update copyright years. 2021-01-04 10:26:59 +01:00
m32r Remove m32r{,le}-*-linux* support from GCC 2021-09-13 15:16:56 +00:00
m68k Update copyright years. 2021-01-04 10:26:59 +01:00
mcore Update copyright years. 2021-01-04 10:26:59 +01:00
microblaze Update copyright years. 2021-01-04 10:26:59 +01:00
mips Update copyright years. 2021-01-04 10:26:59 +01:00
mmix Update copyright years. 2021-01-04 10:26:59 +01:00
moxie Update copyright years. 2021-01-04 10:26:59 +01:00
msp430 Update copyright years. 2021-01-04 10:26:59 +01:00
nds32 Update copyright years. 2021-01-04 10:26:59 +01:00
nios2 Update copyright years. 2021-01-04 10:26:59 +01:00
nvptx Update copyright years. 2021-01-04 10:26:59 +01:00
or1k or1k: Use cmodel=large when building crtstuff 2021-08-15 07:23:12 +09:00
pa libgcc: Add missing runtime exception notices 2021-08-31 10:56:34 +01:00
pdp11
pru libgcc: pru: Place mpyll into its own section 2021-05-13 23:11:01 +03:00
riscv RISC-V: Update soft-fp config for big-endian 2021-03-23 17:31:13 +08:00
rl78 Update copyright years. 2021-01-04 10:26:59 +01:00
rs6000 libgcc: Add a backchain fallback to _Unwind_Backtrace() on PowerPC 2021-10-14 20:00:44 +00:00
rx Update copyright years. 2021-01-04 10:26:59 +01:00
s390 libgcc: use .init_stack for constructors if available 2021-10-07 20:24:43 -07:00
score Update copyright years. 2021-01-04 10:26:59 +01:00
sh Update copyright years. 2021-01-04 10:26:59 +01:00
sol2 Update copyright years. 2021-01-04 10:26:59 +01:00
sparc Update copyright years. 2021-01-04 10:26:59 +01:00
stormy16 Update copyright years. 2021-01-04 10:26:59 +01:00
tilegx
tilepro Update copyright years. 2021-01-04 10:26:59 +01:00
v850 Update copyright years. 2021-01-04 10:26:59 +01:00
vax Update copyright years. 2021-01-04 10:26:59 +01:00
visium Update copyright years. 2021-01-04 10:26:59 +01:00
vms Update copyright years. 2021-01-04 10:26:59 +01:00
xtensa Update copyright years. 2021-01-04 10:26:59 +01:00
darwin10-unwind-find-enc-func.c
darwin-64.c Update copyright years. 2021-01-04 10:26:59 +01:00
darwin-crt3.c Update copyright years. 2021-01-04 10:26:59 +01:00
darwin-crt-tm.c Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-lynx.h Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-rtems.h Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-vxworks-cond.c Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-vxworks-thread.c Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-vxworks-tls.c Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-vxworks.c Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-vxworks.h Update copyright years. 2021-01-04 10:26:59 +01:00
hardfp.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgcc-glibc.ver Update copyright years. 2021-01-04 10:26:59 +01:00
libgcc-libsystem.ver
no-sfp-machine.h
no-unwind.h
t-crtfm
t-crtstuff-pic
t-darwin libgcc, X86, Darwin: Handle symbols for HF cases. 2021-09-19 19:41:31 +01:00
t-dfprules
t-eh-dw2-dip
t-fdpbit
t-fixedpoint-gnu-prefix
t-fpbit
t-freebsd-thread
t-gnu-prefix
t-gthr-noweak
t-gthr-vxworks
t-gthr-vxworksae
t-hardfp Update copyright years. 2021-01-04 10:26:59 +01:00
t-hardfp-sfdf Update copyright years. 2021-01-04 10:26:59 +01:00
t-libgcc-pic
t-libunwind
t-libunwind-elf Update copyright years. 2021-01-04 10:26:59 +01:00
t-linux
t-openbsd-thread
t-rtems
t-slibgcc libgcc: Honor LDFLAGS_FOR_TARGET when linking libgcc_s 2021-08-05 17:32:06 +02:00
t-slibgcc-darwin libgcc, Darwin: Remove unused symlinks. 2021-09-19 19:47:19 +01:00
t-slibgcc-elf-ver
t-slibgcc-fuchsia libgcc: Honor LDFLAGS_FOR_TARGET when linking libgcc_s 2021-08-05 17:32:06 +02:00
t-slibgcc-gld
t-slibgcc-gld-nover
t-slibgcc-hpux
t-slibgcc-libgcc Update copyright years. 2021-01-04 10:26:59 +01:00
t-slibgcc-nolc-override
t-slibgcc-sld
t-slibgcc-vms libgcc: Honor LDFLAGS_FOR_TARGET when linking libgcc_s 2021-08-05 17:32:06 +02:00
t-softfp Update copyright years. 2021-01-04 10:26:59 +01:00
t-softfp-compat
t-softfp-excl
t-softfp-sfdf
t-softfp-sfdftf
t-softfp-tf
t-stack
t-tls
t-vxcrtstuff
t-vxworks introduce overridable clear_cache emitter 2020-12-02 22:10:32 -03:00
t-vxworks7 introduce overridable clear_cache emitter 2020-12-02 22:10:32 -03:00
t-vxworksae
unwind-dw2-fde-darwin.c Update copyright years. 2021-01-04 10:26:59 +01:00
vxcrtstuff.c