llvm: fix mips tail call in compiler-rt

app-devel/llvm/01-runtime/patches/0006-debian-compiler-rt-mips-tail-call.patch

@@ -0,0 +1,57 @@
+see https://reviews.llvm.org/D158491, still unreviewed upstream
+
+Index: llvm-toolchain-snapshot_18~++20231206102350+b304873134e8/compiler-rt/lib/interception/interception.h
+===================================================================
+--- llvm-toolchain-snapshot_18~++20231206102350+b304873134e8.orig/compiler-rt/lib/interception/interception.h
++++ llvm-toolchain-snapshot_18~++20231206102350+b304873134e8/compiler-rt/lib/interception/interception.h
+@@ -205,8 +205,9 @@ const interpose_substitution substitutio
+          ASM_TYPE_FUNCTION_STR "\n"                                            \
+        SANITIZER_STRINGIFY(TRAMPOLINE(func)) ":\n"                             \
+        SANITIZER_STRINGIFY(CFI_STARTPROC) "\n"                                 \
+-       SANITIZER_STRINGIFY(ASM_TAIL_CALL) " __interceptor_"                    \
+-         SANITIZER_STRINGIFY(ASM_PREEMPTIBLE_SYM(func)) "\n"                   \
++       C_ASM_TAIL_CALL(SANITIZER_STRINGIFY(TRAMPOLINE(func)),                  \
++                       "__interceptor_"                                        \
++                         SANITIZER_STRINGIFY(ASM_PREEMPTIBLE_SYM(func))) "\n"  \
+        SANITIZER_STRINGIFY(CFI_ENDPROC) "\n"                                   \
+        ".size  " SANITIZER_STRINGIFY(TRAMPOLINE(func)) ", "                    \
+             ".-" SANITIZER_STRINGIFY(TRAMPOLINE(func)) "\n"                    \
+Index: llvm-toolchain-snapshot_18~++20231206102350+b304873134e8/compiler-rt/lib/sanitizer_common/sanitizer_asm.h
+===================================================================
+--- llvm-toolchain-snapshot_18~++20231206102350+b304873134e8.orig/compiler-rt/lib/sanitizer_common/sanitizer_asm.h
++++ llvm-toolchain-snapshot_18~++20231206102350+b304873134e8/compiler-rt/lib/sanitizer_common/sanitizer_asm.h
+@@ -44,6 +44,8 @@
+
+ #if defined(__x86_64__) || defined(__i386__) || defined(__sparc__)
+ # define ASM_TAIL_CALL jmp
++#elif defined(__mips__) && __mips_isa_rev >= 6
++# define ASM_TAIL_CALL bc
+ #elif defined(__arm__) || defined(__aarch64__) || defined(__mips__) || \
+     defined(__powerpc__) || defined(__loongarch_lp64)
+ # define ASM_TAIL_CALL b
+@@ -53,6 +55,25 @@
+ # define ASM_TAIL_CALL tail
+ #endif
+
++#if defined(__mips64) && __mips_isa_rev < 6
++# define C_ASM_TAIL_CALL(tfunc, ifunc)                        \
++    "lui $t8, %hi(%neg(%gp_rel(" tfunc ")))\n"                \
++    "daddu $t8, $t8, $t9\n"                                   \
++    "daddu $t8, $t8, %lo(%neg(%gp_rel(" tfunc ")))\n"         \
++    "ld $t9, %got_disp(" ifunc ")($t8)\n"                     \
++    "jr $t9\n"
++#elif defined(__mips__) && __mips_isa_rev < 6
++# define C_ASM_TAIL_CALL(tfunc, ifunc)                        \
++    ".set    noreorder\n"                                     \
++    ".cpload $t9\n"                                           \
++    ".set    reorder\n"                                       \
++    "lw $t9, %got(" ifunc ")($gp)\n"                          \
++    "jr $t9\n"
++#elif defined(ASM_TAIL_CALL)
++#  define C_ASM_TAIL_CALL(tfunc, ifunc) \
++    SANITIZER_STRINGIFY(ASM_TAIL_CALL) " " ifunc
++#endif
++
+ #if defined(__ELF__) && defined(__x86_64__) || defined(__i386__) || \
+     defined(__riscv)
+ # define ASM_PREEMPTIBLE_SYM(sym) sym@plt

app-devel/llvm/02-compiler/build

@@ -71,7 +71,7 @@ abinfo "Moving conflicting LLVM replacements for GCC-compatible files ..."
 mkdir -pv "$PKGDIR"/usr/lib/llvm/
 if ! ab_match_arch loongarch64 && \
    ! ab_match_arch loongson3 && \
-   ! ab_match_march mips64r6el; then
+   ! ab_match_arch mips64r6el; then
     mv -v \
         "$PKGDIR"/usr/include/libunwind.* \
         "$PKGDIR"/usr/include/unwind* \

app-devel/llvm/spec

@@ -1,4 +1,5 @@
 VER=17.0.6
+REL=1
 SRCS="https://github.com/llvm/llvm-project/releases/download/llvmorg-$VER/llvm-project-$VER.src.tar.xz"
 SUBDIR="llvm-project-$VER.src/llvm"
 CHKSUMS="sha256::58a8818c60e6627064f312dbf46c02d9949956558340938b71cf731ad8bc0813"