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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-09-28 14:17:54 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-17 16:12:40 -0300 |
| commit | 0add13af81134d959a3d95f5c4c6ccf067332100 (patch) | |
| tree | e89ad70f9702f83b5f333577b35f5d28382aca3f | |
| parent | f72cdbda8b5d3500c59e13bf1badc3e34a8cf192 (diff) | |
| download | glibc-0add13af81134d959a3d95f5c4c6ccf067332100.tar.gz glibc-0add13af81134d959a3d95f5c4c6ccf067332100.tar.xz glibc-0add13af81134d959a3d95f5c4c6ccf067332100.zip | |
riscv: Do not use cfi_label when building with clang
The .cfi_label is a gas extension not supported by clang. From a ziglang discussion [1], it seems that it is not really required. [1] https://github.com/ziglang/zig/issues/3340
| -rw-r--r-- | sysdeps/generic/sysdep.h | 6 | ||||
| -rw-r--r-- | sysdeps/riscv/start.S | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/riscv/clone.S | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/riscv/clone3.S | 2 |
4 files changed, 9 insertions, 3 deletions
diff --git a/sysdeps/generic/sysdep.h b/sysdeps/generic/sysdep.h index c47e53d3d8..c663912b8e 100644 --- a/sysdeps/generic/sysdep.h +++ b/sysdeps/generic/sysdep.h @@ -55,6 +55,12 @@ # define cfi_window_save .cfi_window_save # define cfi_personality(enc, exp) .cfi_personality enc, exp # define cfi_lsda(enc, exp) .cfi_lsda enc, exp +/* .cfi_label is a gas extension not supported by clang. */ +# ifndef __clang__ +# define cfi_label(label) .cfi_label label +# else +# define cfi_label(label) +# endif #else /* ! ASSEMBLER */ diff --git a/sysdeps/riscv/start.S b/sysdeps/riscv/start.S index ede186ef23..bff535be9d 100644 --- a/sysdeps/riscv/start.S +++ b/sysdeps/riscv/start.S @@ -45,7 +45,7 @@ ENTRY (ENTRY_POINT) /* Terminate call stack by noting ra is undefined. Use a dummy .cfi_label to force starting the FDE. */ - .cfi_label .Ldummy + cfi_label (.Ldummy) cfi_undefined (ra) call load_gp mv a5, a0 /* rtld_fini. */ diff --git a/sysdeps/unix/sysv/linux/riscv/clone.S b/sysdeps/unix/sysv/linux/riscv/clone.S index b9c843eb1d..f815fd6160 100644 --- a/sysdeps/unix/sysv/linux/riscv/clone.S +++ b/sysdeps/unix/sysv/linux/riscv/clone.S @@ -74,7 +74,7 @@ ENTRY (__thread_start) L (thread_start): /* Terminate call stack by noting ra is undefined. Use a dummy .cfi_label to force starting the FDE. */ - .cfi_label .Ldummy + cfi_label (.Ldummy) cfi_undefined (ra) /* Restore the arg for user's function. */ diff --git a/sysdeps/unix/sysv/linux/riscv/clone3.S b/sysdeps/unix/sysv/linux/riscv/clone3.S index 29264be054..6a81a56519 100644 --- a/sysdeps/unix/sysv/linux/riscv/clone3.S +++ b/sysdeps/unix/sysv/linux/riscv/clone3.S @@ -62,7 +62,7 @@ ENTRY(__thread_start_clone3) L(thread_start): /* Terminate call stack by noting ra is undefined. Use a dummy .cfi_label to force starting the FDE. */ - .cfi_label .Ldummy + cfi_label (.Ldummy) cfi_undefined (ra) /* Restore the arg for user's function and call the user's |