Fix relocs_info declaration in tcc.h

C standard specifies that array should be declared with a non null size
or with * for standard array. Declaration of relocs_info in tcc.h was
not respecting this rule. This commit add a R_NUM macro that maps to the
R_<ARCH>_NUM macros and declare relocs_info using it. This commit also
moves all linker-related macros from <arch>-gen.c files to <arch>-link.c
ones.

arm-gen.c

@@ -129,26 +129,6 @@ enum {
 
 #define CHAR_IS_UNSIGNED
 
-/******************************************************/
-/* ELF defines */
-
-#define EM_TCC_TARGET EM_ARM
-
-/* relocation type for 32 bit data relocation */
-#define R_DATA_32   R_ARM_ABS32
-#define R_DATA_PTR  R_ARM_ABS32
-#define R_JMP_SLOT  R_ARM_JUMP_SLOT
-#define R_GLOB_DAT  R_ARM_GLOB_DAT
-#define R_COPY      R_ARM_COPY
-
-#define ELF_START_ADDR 0x00008000
-#define ELF_PAGE_SIZE  0x1000
-
-enum float_abi {
-    ARM_SOFTFP_FLOAT,
-    ARM_HARD_FLOAT,
-};
-
 /******************************************************/
 #else /* ! TARGET_DEFS_ONLY */
 /******************************************************/

arm-link.c

@@ -1,7 +1,31 @@
-#include "tcc.h"
+#ifdef TARGET_DEFS_ONLY
+
+#define EM_TCC_TARGET EM_ARM
+
+/* relocation type for 32 bit data relocation */
+#define R_DATA_32   R_ARM_ABS32
+#define R_DATA_PTR  R_ARM_ABS32
+#define R_JMP_SLOT  R_ARM_JUMP_SLOT
+#define R_GLOB_DAT  R_ARM_GLOB_DAT
+#define R_COPY      R_ARM_COPY
+
+#define R_NUM       R_ARM_NUM
+
+#define ELF_START_ADDR 0x00008000
+#define ELF_PAGE_SIZE  0x1000
+
 #define HAVE_SECTION_RELOC
 
-ST_DATA struct reloc_info relocs_info[] = {
+enum float_abi {
+    ARM_SOFTFP_FLOAT,
+    ARM_HARD_FLOAT,
+};
+
+#else /* !TARGET_DEFS_ONLY */
+
+#include "tcc.h"
+
+ST_DATA struct reloc_info relocs_info[R_NUM] = {
     INIT_RELOC_INFO (R_ARM_PC24, 1, AUTO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_ARM_CALL, 1, AUTO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_ARM_JUMP24, 1, AUTO_GOTPLT_ENTRY, 0)
@@ -248,3 +272,5 @@ void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, add
             return;
     }
 }
+
+#endif /* !TARGET_DEFS_ONLY */

arm64-gen.c

@@ -40,20 +40,6 @@
 
 #define CHAR_IS_UNSIGNED
 
-/******************************************************/
-/* ELF defines */
-
-#define EM_TCC_TARGET EM_AARCH64
-
-#define R_DATA_32  R_AARCH64_ABS32
-#define R_DATA_PTR R_AARCH64_ABS64
-#define R_JMP_SLOT R_AARCH64_JUMP_SLOT
-#define R_GLOB_DAT R_AARCH64_GLOB_DAT
-#define R_COPY     R_AARCH64_COPY
-
-#define ELF_START_ADDR 0x00400000
-#define ELF_PAGE_SIZE 0x1000
-
 /******************************************************/
 #else /* ! TARGET_DEFS_ONLY */
 /******************************************************/

arm64-link.c

@@ -1,7 +1,25 @@
-#include "tcc.h"
+#ifdef TARGET_DEFS_ONLY
+
+#define EM_TCC_TARGET EM_AARCH64
+
+#define R_DATA_32  R_AARCH64_ABS32
+#define R_DATA_PTR R_AARCH64_ABS64
+#define R_JMP_SLOT R_AARCH64_JUMP_SLOT
+#define R_GLOB_DAT R_AARCH64_GLOB_DAT
+#define R_COPY     R_AARCH64_COPY
+
+#define R_NUM      R_AARCH64_NUM
+
+#define ELF_START_ADDR 0x00400000
+#define ELF_PAGE_SIZE 0x1000
+
 #define HAVE_SECTION_RELOC
 
-ST_DATA struct reloc_info relocs_info[] = {
+#else /* !TARGET_DEFS_ONLY */
+
+#include "tcc.h"
+
+ST_DATA struct reloc_info relocs_info[R_NUM] = {
     INIT_RELOC_INFO (R_AARCH64_ABS32, 0, NO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_AARCH64_ABS64, 0, NO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_AARCH64_MOVW_UABS_G0_NC, 0, NO_GOTPLT_ENTRY, 0)
@@ -111,3 +129,5 @@ void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, add
             return;
     }
 }
+
+#endif /* !TARGET_DEFS_ONLY */

c67-gen.c

@@ -108,21 +108,6 @@ enum {
 /* maximum alignment (for aligned attribute support) */
 #define MAX_ALIGN     8
 
-/******************************************************/
-/* ELF defines */
-
-#define EM_TCC_TARGET EM_C60
-
-/* relocation type for 32 bit data relocation */
-#define R_DATA_32   R_C60_32
-#define R_DATA_PTR  R_C60_32
-#define R_JMP_SLOT  R_C60_JMP_SLOT
-#define R_GLOB_DAT  R_C60_GLOB_DAT
-#define R_COPY      R_C60_COPY
-
-#define ELF_START_ADDR 0x00000400
-#define ELF_PAGE_SIZE  0x1000
-
 /******************************************************/
 #else /* ! TARGET_DEFS_ONLY */
 /******************************************************/

c67-link.c

@@ -1,6 +1,25 @@
-#include "tcc.h"
+#ifdef TARGET_DEFS_ONLY
+
+#define EM_TCC_TARGET EM_C60
+
+/* relocation type for 32 bit data relocation */
+#define R_DATA_32   R_C60_32
+#define R_DATA_PTR  R_C60_32
+#define R_JMP_SLOT  R_C60_JMP_SLOT
+#define R_GLOB_DAT  R_C60_GLOB_DAT
+#define R_COPY      R_C60_COPY
+
+#define R_NUM       R_C60_NUM
+
+#define ELF_START_ADDR 0x00000400
+#define ELF_PAGE_SIZE  0x1000
+
 #define HAVE_SECTION_RELOC
 
+#else /* !TARGET_DEFS_ONLY */
+
+#include "tcc.h"
+
 void relocate_init(Section *sr) {}
 
 void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, addr_t val)
@@ -33,3 +52,5 @@ void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, add
             break;
     }
 }
+
+#endif /* !TARGET_DEFS_ONLY */

elf.h

@@ -2456,6 +2456,8 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_AARCH64_TLS_TPREL64  1030	/* TP-relative offset, 64 bit.  */
 #define R_AARCH64_TLSDESC      1031	/* TLS Descriptor.  */
 #define R_AARCH64_IRELATIVE    1032	/* STT_GNU_IFUNC relocation.  */
+/* Keep this the last entry.  */
+#define R_AARCH64_NUM          1033
 
 /* ARM relocs.  */
 
@@ -2547,6 +2549,8 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_C60_RELATIVE  8               /* Adjust by program base */
 #define R_C60_GOTOFF    9               /* 32 bit offset to GOT */
 #define R_C60_GOTPC     10              /* 32 bit PC relative offset to GOT */
+/* Keep this the last entry.  */
+#define R_C60_NUM       11
 
 #define R_C60HI16      0x55       /* high 16 bit MVKH embedded */
 #define R_C60LO16      0x54       /* low 16 bit MVKL embedded */
@@ -2900,7 +2904,7 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_X86_64_REX_GOTPCRELX	42      /* like GOTPCRELX, but a REX prefix
 					   is present */
 
-#define R_X86_64_NUM		39
+#define R_X86_64_NUM		43
 
 
 /* AM33 relocations.  */

i386-gen.c

@@ -73,21 +73,6 @@ enum {
 
 #define psym oad
 
-/******************************************************/
-/* ELF defines */
-
-#define EM_TCC_TARGET EM_386
-
-/* relocation type for 32 bit data relocation */
-#define R_DATA_32   R_386_32
-#define R_DATA_PTR  R_386_32
-#define R_JMP_SLOT  R_386_JMP_SLOT
-#define R_GLOB_DAT  R_386_GLOB_DAT
-#define R_COPY      R_386_COPY
-
-#define ELF_START_ADDR 0x08048000
-#define ELF_PAGE_SIZE  0x1000
-
 /******************************************************/
 #else /* ! TARGET_DEFS_ONLY */
 /******************************************************/

i386-link.c

@@ -1,8 +1,27 @@
-#include "tcc.h"
+#ifdef TARGET_DEFS_ONLY
+
+#define EM_TCC_TARGET EM_386
+
+/* relocation type for 32 bit data relocation */
+#define R_DATA_32   R_386_32
+#define R_DATA_PTR  R_386_32
+#define R_JMP_SLOT  R_386_JMP_SLOT
+#define R_GLOB_DAT  R_386_GLOB_DAT
+#define R_COPY      R_386_COPY
+
+#define R_NUM       R_386_NUM
+
+#define ELF_START_ADDR 0x08048000
+#define ELF_PAGE_SIZE  0x1000
+
 #define HAVE_SECTION_RELOC
 
+#else /* !TARGET_DEFS_ONLY */
+
+#include "tcc.h"
+
 static ElfW_Rel *qrel; /* ptr to next reloc entry reused */
-ST_DATA struct reloc_info relocs_info[] = {
+ST_DATA struct reloc_info relocs_info[R_NUM] = {
     INIT_RELOC_INFO (R_386_32, 0, NO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_386_PC32, 1, AUTO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_386_PLT32, 1, ALWAYS_GOTPLT_ENTRY, 0)
@@ -101,3 +120,5 @@ void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, add
             return;
     }
 }
+
+#endif /* !TARGET_DEFS_ONLY */

tcc.h

@@ -290,19 +290,24 @@
 #define TARGET_DEFS_ONLY
 #ifdef TCC_TARGET_I386
 # include "i386-gen.c"
+# include "i386-link.c"
 #endif
 #ifdef TCC_TARGET_X86_64
 # include "x86_64-gen.c"
+# include "x86_64-link.c"
 #endif
 #ifdef TCC_TARGET_ARM
 # include "arm-gen.c"
+# include "arm-link.c"
 #endif
 #ifdef TCC_TARGET_ARM64
 # include "arm64-gen.c"
+# include "arm64-link.c"
 #endif
 #ifdef TCC_TARGET_C67
 # include "coff.h"
 # include "c67-gen.c"
+# include "c67-link.c"
 #endif
 #undef TARGET_DEFS_ONLY
 
@@ -1325,7 +1330,7 @@ struct reloc_info {
 
 #define INIT_RELOC_INFO(rtype, code_reloc, gotplt_entry, pltoff_addend) \
   [rtype] = {code_reloc, gotplt_entry, pltoff_addend},
-ST_DATA struct reloc_info relocs_info[];
+ST_DATA struct reloc_info relocs_info[R_NUM];
 
 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
 ST_DATA Section *cur_text_section; /* current section where function code is generated */

x86_64-gen.c

@@ -101,21 +101,6 @@ enum {
 /* maximum alignment (for aligned attribute support) */
 #define MAX_ALIGN     16
 
-/******************************************************/
-/* ELF defines */
-
-#define EM_TCC_TARGET EM_X86_64
-
-/* relocation type for 32 bit data relocation */
-#define R_DATA_32   R_X86_64_32
-#define R_DATA_PTR  R_X86_64_64
-#define R_JMP_SLOT  R_X86_64_JUMP_SLOT
-#define R_GLOB_DAT  R_X86_64_GLOB_DAT
-#define R_COPY      R_X86_64_COPY
-
-#define ELF_START_ADDR 0x400000
-#define ELF_PAGE_SIZE  0x200000
-
 /******************************************************/
 #else /* ! TARGET_DEFS_ONLY */
 /******************************************************/

x86_64-link.c

@@ -1,8 +1,27 @@
-#include "tcc.h"
+#ifdef TARGET_DEFS_ONLY
+
+#define EM_TCC_TARGET EM_X86_64
+
+/* relocation type for 32 bit data relocation */
+#define R_DATA_32   R_X86_64_32
+#define R_DATA_PTR  R_X86_64_64
+#define R_JMP_SLOT  R_X86_64_JUMP_SLOT
+#define R_GLOB_DAT  R_X86_64_GLOB_DAT
+#define R_COPY      R_X86_64_COPY
+
+#define R_NUM       R_X86_64_NUM
+
+#define ELF_START_ADDR 0x400000
+#define ELF_PAGE_SIZE  0x200000
+
 #define HAVE_SECTION_RELOC
 
+#else /* !TARGET_DEFS_ONLY */
+
+#include "tcc.h"
+
 static ElfW_Rel *qrel; /* ptr to next reloc entry reused */
-ST_DATA struct reloc_info relocs_info[] = {
+ST_DATA struct reloc_info relocs_info[R_NUM] = {
     INIT_RELOC_INFO (R_X86_64_64, 0, AUTO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_X86_64_32, 0, AUTO_GOTPLT_ENTRY, 0)
     INIT_RELOC_INFO (R_X86_64_32S, 0, AUTO_GOTPLT_ENTRY, 0)
@@ -107,3 +126,5 @@ void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, add
             break;
     }
 }
+
+#endif /* !TARGET_DEFS_ONLY */