Add base for MIPS, it requires work to be done because it does not have PLT, instead we must hook the GOT.

Author: viferga

Dockerfile

@@ -14,16 +14,20 @@ RUN apt update \
         gcc-powerpc64le-linux-gnu \
         gcc-riscv64-linux-gnu \
         gcc-s390x-linux-gnu \
-        gcc-sparc64-linux-gnu \
         gcc-14-loongarch64-linux-gnu \
+        gcc-mips64-linux-gnuabi64 \
+        gcc-mips64el-linux-gnuabi64 \
+        gcc-sparc64-linux-gnu \
         libc6-dev-armhf-cross \
         libc6-dev-ppc64el-cross \
         libc6-dev-powerpc-cross \
         libc6-dev-armel-cross \
         libc6-dev-arm64-cross \
         libc6-dev-s390x-cross \
-        libc6-dev-sparc64-cross \
-        libc6-dev-loong64-cross
+        libc6-dev-loong64-cross \
+        libc6-dev-mips64-cross \
+        libc6-dev-mips64el-cross \
+        libc6-dev-sparc64-cross
 
 WORKDIR /plthook
 
@@ -34,10 +38,10 @@ WORKDIR /plthook/test
 ENV OPT_CFLAGS="-O2"
 
 RUN echo "Running tests" \
-    && make relro_pie_tests TARGET_PLATFORM=aarch64-linux-gnu \
-    && make relro_pie_tests TARGET_PLATFORM=aarch64-linux-gnu \
     && make relro_pie_tests TARGET_PLATFORM=arm-linux-gnueabi \
     && make relro_pie_tests TARGET_PLATFORM=arm-linux-gnueabihf \
+    && make relro_pie_tests TARGET_PLATFORM=aarch64-linux-gnu \
+    && make relro_pie_tests TARGET_PLATFORM=aarch64-linux-gnu \
     && make relro_pie_tests TARGET_PLATFORM=powerpc-linux-gnu QEMU_ARCH=ppc \
     && make relro_pie_tests TARGET_PLATFORM=powerpc64le-linux-gnu QEMU_ARCH=ppc64le \
     && make relro_pie_tests TARGET_PLATFORM=riscv64-linux-gnu QEMU_ARCH=riscv64 \
@@ -46,4 +50,6 @@ RUN echo "Running tests" \
 
     # TODO:
     #  \
+    # && make relro_pie_tests TARGET_PLATFORM=mips64-linux-gnuabi64 QEMU_ARCH=mips64 \
+    # && make relro_pie_tests TARGET_PLATFORM=mips64el-linux-gnuabi64 QEMU_ARCH=mips64el \
     # && make relro_pie_tests TARGET_PLATFORM=sparc64-linux-gnu QEMU_ARCH=sparc64

plthook_elf.c

@@ -116,6 +116,9 @@
 #elif defined __loongarch64
 #define R_JUMP_SLOT   R_LARCH_JUMP_SLOT
 #define R_GLOBAL_DATA R_LARCH_64
+#elif 0 /* disabled because not working, needs to patch the GOT instead of PLT */ && defined __mips__
+#define R_JUMP_SLOT   R_MIPS_JUMP_SLOT
+#define R_GLOBAL_DATA R_MIPS_GLOB_DAT
 #elif 0 /* disabled because not tested */ && (defined __sparc || defined __sparc__)
 #define R_JUMP_SLOT   R_SPARC_JMP_SLOT
 #define R_GLOBAL_DATA R_SPARC_GLOB_DAT