https://gcc.gnu.org/g:929b0fffe4d3d836e07e5a398a8e176e65f8b2c2
commit r13-8728-g929b0fffe4d3d836e07e5a398a8e176e65f8b2c2
Author: Andrew Pinski <apin...@marvell.com>
Date: Sat Jul 22 08:52:42 2023 -0700
Fix PR 110066: crash with -pg -static on riscv
The problem -fasynchronous-unwind-tables is on by default for riscv linux
We need turn it off for crt*.o because it would make __EH_FRAME_BEGIN__
point
to .eh_frame data from crtbeginT.o instead of the user-defined object
during static linking.
This turns it off.
OK?
libgcc/ChangeLog:
* config.host (riscv*-*-linux*): Add t-crtstuff to tmake_file.
(riscv*-*-freebsd*): Likewise.
* config/riscv/t-crtstuff: New file.
(cherry picked from commit bbc1a102735c72e3c5a4dede8ab382813d12b058)
Diff:
---
libgcc/config.host | 4 ++--
libgcc/config/riscv/t-crtstuff | 5 +++++
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/libgcc/config.host b/libgcc/config.host
index 9d7212028d06..c94d69d84b7c 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -1304,12 +1304,12 @@ pru-*-*)
tm_file="$tm_file pru/pru-abi.h"
;;
riscv*-*-linux*)
- tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp
riscv/t-elf riscv/t-elf${host_address} t-slibgcc-libgcc"
+ tmake_file="${tmake_file} riscv/t-crtstuff
riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}
t-slibgcc-libgcc"
extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o
crtbeginT.o"
md_unwind_header=riscv/linux-unwind.h
;;
riscv*-*-freebsd*)
- tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp
riscv/t-elf riscv/t-elf${host_address} t-slibgcc-libgcc"
+ tmake_file="${tmake_file} riscv/t-crtstuff
riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}
t-slibgcc-libgcc"
extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o
crtbeginT.o"
;;
riscv*-*-*)
diff --git a/libgcc/config/riscv/t-crtstuff b/libgcc/config/riscv/t-crtstuff
new file mode 100644
index 000000000000..685d11b3e66d
--- /dev/null
+++ b/libgcc/config/riscv/t-crtstuff
@@ -0,0 +1,5 @@
+# -fasynchronous-unwind-tables -funwind-tables is on by default for riscv linux
+# We turn it off for crt*.o because it would make __EH_FRAME_BEGIN__ point
+# to .eh_frame data from crtbeginT.o instead of the user-defined object
+# during static linking.
+CRTSTUFF_T_CFLAGS += -fno-asynchronous-unwind-tables -fno-unwind-tables
