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* [PATCH 1/2] Fix PR 110066: crash with -pg -static on riscv
@ 2023-07-23  1:06 Andrew Pinski
  2023-07-23  1:06 ` [PATCH 2/2] AARCH64: Turn off unwind tables for crtbeginT.o Andrew Pinski
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Andrew Pinski @ 2023-07-23  1:06 UTC (permalink / raw)
  To: gcc-patches; +Cc: Andrew Pinski

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.
---
 libgcc/config.host             | 4 ++--
 libgcc/config/riscv/t-crtstuff | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 libgcc/config/riscv/t-crtstuff

diff --git a/libgcc/config.host b/libgcc/config.host
index 9d7212028d0..c94d69d84b7 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 00000000000..685d11b3e66
--- /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
-- 
2.39.1


^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2024-05-08 16:08 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-07-23  1:06 [PATCH 1/2] Fix PR 110066: crash with -pg -static on riscv Andrew Pinski
2023-07-23  1:06 ` [PATCH 2/2] AARCH64: Turn off unwind tables for crtbeginT.o Andrew Pinski
2023-07-24 15:55   ` Richard Sandiford
2023-07-25  7:06     ` Richard Biener
2023-07-23  3:35 ` [PATCH 1/2] Fix PR 110066: crash with -pg -static on riscv Kito Cheng
2024-05-08 16:07   ` Andrew Pinski
2023-07-23  6:46 ` Andreas Schwab

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