casaroli commented on code in PR #20089:
URL: https://github.com/apache/nuttx/pull/20089#discussion_r3961773624
##########
arch/arm/include/elf.h:
##########
@@ -247,10 +264,75 @@
#define DT_ARM_PREEMPTMAP 0x70000002
#define DT_ARM_RESERVED2 0x70000003
+/* Loader state the FDPIC relocations need: the object's data base, and the
+ * descriptor pool cursor, which must survive from one relocation to the
+ * next. It arrives through the arch_data channel.
+ */
+
+/* The relocations that only an FDPIC object may use. Seeing one in an
+ * object whose OS/ABI byte does not say FDPIC means the marker was lost.
+ */
+
+#define ARCH_ELF_RELOC_ISFDPIC(t) \
+ ((t) == R_ARM_FUNCDESC || (t) == R_ARM_FUNCDESC_VALUE)
+
+#define ARCH_ELFDATA 1
+
+#define ARCH_ELFDATA_INIT(d, l) \
+ do \
+ { \
+ (d)->fdpic = (l)->fdpic; \
+ (d)->gotbase = (l)->gotbase; \
+ (d)->descpool = (FAR struct arm_fdpic_desc_s *)(l)->descpool; \
Review Comment:
Done
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