diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2024-05-08 11:12:30 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2024-05-08 11:19:14 +0200 |
| commit | 035e048fd68141779c147e387f608e8da6713d57 (patch) | |
| tree | 358fc1bf9a0e0bfece3796dd59906013e358b891 | |
| parent | 4bcf25e75df857806623ff80924675bf849a60d2 (diff) | |
sparc64: Fix incorrect sigreturn stub function implementation
| -rw-r--r-- | libc/sysdeps/linux/sparc64/Makefile.arch | 2 | ||||
| -rw-r--r-- | libc/sysdeps/linux/sparc64/sigaction.c | 10 | ||||
| -rw-r--r-- | libc/sysdeps/linux/sparc64/sigreturn_stub.S | 10 | ||||
| -rw-r--r-- | libc/sysdeps/linux/sparc64/sysdep.h | 9 |
4 files changed, 21 insertions, 10 deletions
diff --git a/libc/sysdeps/linux/sparc64/Makefile.arch b/libc/sysdeps/linux/sparc64/Makefile.arch index 37b539b3b..cc4000b78 100644 --- a/libc/sysdeps/linux/sparc64/Makefile.arch +++ b/libc/sysdeps/linux/sparc64/Makefile.arch @@ -5,7 +5,7 @@ CSRC-y := __syscall_error.c sigaction.c SSRC-y := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S brk.S fork.S \ - syscall.S pipe.S vfork.S clone.S + syscall.S pipe.S vfork.S clone.S sigreturn_stub.S CSRC-y += $(addprefix soft-fp/, \ qp_add.c qp_cmp.c qp_cmpe.c qp_div.c qp_dtoq.c qp_feq.c qp_fge.c \ diff --git a/libc/sysdeps/linux/sparc64/sigaction.c b/libc/sysdeps/linux/sparc64/sigaction.c index d8aaad0fb..b28fa659a 100644 --- a/libc/sysdeps/linux/sparc64/sigaction.c +++ b/libc/sysdeps/linux/sparc64/sigaction.c @@ -26,7 +26,7 @@ /* SPARC 64bit userland requires a kernel that has rt signals anyway. */ -static void __rt_sigreturn_stub (void); +void __rt_sigreturn_stub (void); int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact) { @@ -67,11 +67,3 @@ libc_hidden_weak(sigaction) # endif #endif -static void -__rt_sigreturn_stub (void) -{ - __asm__ ("mov %0, %%g1\n\t" - "ta 0x6d\n\t" - : /* no outputs */ - : "i" (__NR_rt_sigreturn)); -} diff --git a/libc/sysdeps/linux/sparc64/sigreturn_stub.S b/libc/sysdeps/linux/sparc64/sigreturn_stub.S new file mode 100644 index 000000000..a5c9bb47f --- /dev/null +++ b/libc/sysdeps/linux/sparc64/sigreturn_stub.S @@ -0,0 +1,10 @@ +#include <sysdep.h> + + nop + nop + +ENTRY_NOCFI (__rt_sigreturn_stub) + mov __NR_rt_sigreturn, %g1 + ta 0x6d +END_NOCFI (__rt_sigreturn_stub) + diff --git a/libc/sysdeps/linux/sparc64/sysdep.h b/libc/sysdeps/linux/sparc64/sysdep.h index 31008c34b..5a4c36348 100644 --- a/libc/sysdeps/linux/sparc64/sysdep.h +++ b/libc/sysdeps/linux/sparc64/sysdep.h @@ -83,6 +83,15 @@ C_LABEL(name) \ cfi_endproc; \ .size name, . - name +#define ENTRY_NOCFI(name) \ + .align 4; \ + .global C_SYMBOL_NAME(name); \ + .type name, @function; \ +C_LABEL(name) + +#define END_NOCFI(name) \ + .size name, . - name + #define LOC(name) .L##name #undef PSEUDO |