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tinycc/arm64-link.c

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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.
2016-12-06 04:40:59 +08:00
#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
elf: Support STB_LOCAL dynamic symbols local symbols can be resolved statically, they don't have to be done dynamically, so this is a slight speedup at load time for produced executables and shared libs. The musl libc also rejects any STB_LOCAL symbols for dynamic symbol resolution, so there it also fixes use of shared libs created by tcc.
2017-05-07 10:41:40 +08:00
#define R_RELATIVE R_AARCH64_RELATIVE
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.
2016-12-06 04:40:59 +08:00
#define R_NUM R_AARCH64_NUM
#define ELF_START_ADDR 0x00400000
arm64: Increase page size Fedora, RHEL and Centos have a default page size of 64K for arm64, so bump up the page size so that ELF sections of the generated inary are correctly aligned for 64K pages too.
2019-09-03 15:09:05 +08:00
#define ELF_PAGE_SIZE 0x10000
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.
2016-12-06 04:40:59 +08:00
Fix PLT creation for i386 i386 target does not have PC relative loads. Its ABI therefore require ebx register to points to the GOT when executing a PLT entry. This means that PLT entry cannot be used transparently, the compiler needs to expect execution of a PLT entry to be able to use one, that is a PLT entry should only be created if the relocation explicitely asks for it (eg. R_386_PLT32). This patch creates a new target macro PCRELATIVE_DLLPLT to indicate whether a target can do a PC relative load in PLT entry when building a dynamic library. Executable do not normally pose a problem because they are loaded at a fixed address and thus the absolute address of GOT can be used. Note that in such a case, if the compiler does not use a PLT aware relocation for external access then the code relocation will fall on the dynamic loader since there is no PLT entry to relocate too.
2016-12-10 17:14:29 +08:00
#define PCRELATIVE_DLLPLT 1
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
#define RELOCATE_DLLPLT 1
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
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.
2016-12-06 04:40:59 +08:00
#else /* !TARGET_DEFS_ONLY */
#include "tcc.h"
bored... /* Use "-g" as alias for "-g1". Use "-g0" to disable debug */ So not using -g is now the alias for -g0 ?!? This reverts commit 8759b2581d196081e3b152b2ea71ccf1a76412eb. This reverts commit 3ce7bc6efc8079dfa182840a177dbff8199ae1d5. This reverts commit 5fb582ab7f44f8ead28a95e002042e6cb1e72b00. This reverts commit aea68dbb40b544ecf17d90665aaf13ee1e2f905d. This reverts commit fa9c31c3db1898d804db2289a11d9f368da88dd1. This reverts commit b3bebdb20a8910597955f849791f578d42ef178e. This reverts commit ecf8e5a00e5909ae664e1fafb641ddf711210904. This reverts commit fe6b5c08dc68b1bfab6b6ef6b9e29a5af7317262. This reverts commit e2e5377e7b68d57def00acda17ffcfca6dce8b84. This reverts commit 1cd79989057ff937a2bc2b8bdc7afd4f02a91407.
2022-05-08 05:16:13 +08:00
#ifdef NEED_RELOC_TYPE
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
/* Returns 1 for a code relocation, 0 for a data relocation. For unknown
relocations, returns -1. */
int code_reloc (int reloc_type)
{
switch (reloc_type) {
case R_AARCH64_ABS32:
case R_AARCH64_ABS64:
arm64: Handle R_AARCH64_PREL32 again This got lost when splitting reloc handling to individual files.
2016-12-13 19:48:55 +08:00
case R_AARCH64_PREL32:
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
case R_AARCH64_MOVW_UABS_G0_NC:
case R_AARCH64_MOVW_UABS_G1_NC:
case R_AARCH64_MOVW_UABS_G2_NC:
case R_AARCH64_MOVW_UABS_G3:
case R_AARCH64_ADR_PREL_PG_HI21:
case R_AARCH64_ADD_ABS_LO12_NC:
case R_AARCH64_ADR_GOT_PAGE:
case R_AARCH64_LD64_GOT_LO12_NC:
add arm64 relocs
2021-01-04 02:14:53 +08:00
case R_AARCH64_LDST128_ABS_LO12_NC:
Add bound checking to arm, arm64 and riscv64 Checked on: - i386/x86_64 (linux/windows) - arm/arm64 (rapberry pi) - riscv64 (simulator) Not tested for arm softfloat because raspberry pi does not support it. Modifications: Makefile: add arm-asm.c to arm64_FILES add riscv64-asm.c (new file) to riscv64_FILES lib/Makefile: add fetch_and_add_arm.o(new file) to ARM_O add fetch_and_add_arm64.o(new file) to ARM64_O add fetch_and_add_riscv64.o(new file) to RISCV64_O add $(BCHECK_O) to OBJ-arm/OBJ-arm64/OBJ-riscv64 tcc.h: Enable CONFIG_TCC_BCHECK for arm32/arm64/riscv64 Add arm-asm.c, riscv64-asm.c tcctok.h: for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 tccgen.c: put_extern_sym2: for arm check memcpy/memmove/memset/memmove4/memmove8 only use alloca for i386/x86_64 for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 fix builtin_frame_address/builtin_return_address for arm/riscv64 tccrun.c: Add riscv64 support fix rt_getcontext/rt_get_caller_pc for arm tccelf.c: tcc_load_dll: Print filename for bad architecture libtcc.c: add arm-asm.c/riscv64-asm.c tcc-doc.texi: Add arm, arm64, riscv64 support for bound checking lib/bcheck.c: add __bound___aeabi_memcpy/__bound___aeabi_memmove __bound___aeabi_memmove4/__bound___aeabi_memmove8 __bound___aeabi_memset for arm call fetch_and_add_arm/fetch_and_add_arm64/fetch_and_add_riscv64 __bound_init: Fix type for start/end/ad __bound_malloc/__bound_memalign/__bound_realloc/__bound_calloc: Use size + 1 arm-gen.c: add bound checking code like i386/x86_64 assign_regs: only malloc if nb_args != 0 gen_opi/gen_opf: Fix reload problems arm-link.c: relocate_plt: Fix address calculating arm64-gen.c: add bound checking code like i386/x86_64 load/store: remove VT_BOUNDED from sv->r arm64_hfa_aux/arm64_hfa_aux: Fix array code gfunc_prolog: only malloc if n != 0 arm64-link.c: code_reloc/gotplt_entry_type/relocate: add R_AARCH64_LDST64_ABS_LO12_NC relocate: Use addXXle instead of writeXXle riscv64-gen.c: add bound checking code like i386/x86_64 add NB_ASM_REGS/CONFIG_TCC_ASM riscv64-link.c: relocate: Use addXXle instead of writeXXle i386-gen.c/x86_64-gen.c gen_bounds_epilog: Fix code (unrelated) tests/Makefile: add $(BTESTS) for arm/arm64/riscv64 tests/tests2/Makefile: Use 85 only on i386/x86_64 because of asm code Use 113 only on i386/x86_64 because of DLL code Add 112/114/115/116 for arm/arm64/riscv64 Fix FILTER (failed on riscv64) tests/boundtest.c: Only use alloca for i386/x86_64
2020-06-16 13:39:48 +08:00
case R_AARCH64_LDST64_ABS_LO12_NC:
add arm64 relocs
2021-01-04 02:14:53 +08:00
case R_AARCH64_LDST32_ABS_LO12_NC:
case R_AARCH64_LDST16_ABS_LO12_NC:
FreeBSD (aarch64): fix relocation error.
2020-12-22 12:52:45 +08:00
case R_AARCH64_LDST8_ABS_LO12_NC:
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
case R_AARCH64_GLOB_DAT:
case R_AARCH64_COPY:
return 0;
case R_AARCH64_JUMP26:
case R_AARCH64_CALL26:
case R_AARCH64_JUMP_SLOT:
return 1;
}
return -1;
}
Spelling fixes in C comments only
2017-05-08 12:38:09 +08:00
/* Returns an enumerator to describe whether and when the relocation needs a
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
GOT and/or PLT entry to be created. See tcc.h for a description of the
different values. */
int gotplt_entry_type (int reloc_type)
{
switch (reloc_type) {
arm64: Handle R_AARCH64_PREL32 again This got lost when splitting reloc handling to individual files.
2016-12-13 19:48:55 +08:00
case R_AARCH64_PREL32:
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
case R_AARCH64_MOVW_UABS_G0_NC:
case R_AARCH64_MOVW_UABS_G1_NC:
case R_AARCH64_MOVW_UABS_G2_NC:
case R_AARCH64_MOVW_UABS_G3:
case R_AARCH64_ADR_PREL_PG_HI21:
case R_AARCH64_ADD_ABS_LO12_NC:
add arm64 relocs
2021-01-04 02:14:53 +08:00
case R_AARCH64_LDST128_ABS_LO12_NC:
Add bound checking to arm, arm64 and riscv64 Checked on: - i386/x86_64 (linux/windows) - arm/arm64 (rapberry pi) - riscv64 (simulator) Not tested for arm softfloat because raspberry pi does not support it. Modifications: Makefile: add arm-asm.c to arm64_FILES add riscv64-asm.c (new file) to riscv64_FILES lib/Makefile: add fetch_and_add_arm.o(new file) to ARM_O add fetch_and_add_arm64.o(new file) to ARM64_O add fetch_and_add_riscv64.o(new file) to RISCV64_O add $(BCHECK_O) to OBJ-arm/OBJ-arm64/OBJ-riscv64 tcc.h: Enable CONFIG_TCC_BCHECK for arm32/arm64/riscv64 Add arm-asm.c, riscv64-asm.c tcctok.h: for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 tccgen.c: put_extern_sym2: for arm check memcpy/memmove/memset/memmove4/memmove8 only use alloca for i386/x86_64 for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 fix builtin_frame_address/builtin_return_address for arm/riscv64 tccrun.c: Add riscv64 support fix rt_getcontext/rt_get_caller_pc for arm tccelf.c: tcc_load_dll: Print filename for bad architecture libtcc.c: add arm-asm.c/riscv64-asm.c tcc-doc.texi: Add arm, arm64, riscv64 support for bound checking lib/bcheck.c: add __bound___aeabi_memcpy/__bound___aeabi_memmove __bound___aeabi_memmove4/__bound___aeabi_memmove8 __bound___aeabi_memset for arm call fetch_and_add_arm/fetch_and_add_arm64/fetch_and_add_riscv64 __bound_init: Fix type for start/end/ad __bound_malloc/__bound_memalign/__bound_realloc/__bound_calloc: Use size + 1 arm-gen.c: add bound checking code like i386/x86_64 assign_regs: only malloc if nb_args != 0 gen_opi/gen_opf: Fix reload problems arm-link.c: relocate_plt: Fix address calculating arm64-gen.c: add bound checking code like i386/x86_64 load/store: remove VT_BOUNDED from sv->r arm64_hfa_aux/arm64_hfa_aux: Fix array code gfunc_prolog: only malloc if n != 0 arm64-link.c: code_reloc/gotplt_entry_type/relocate: add R_AARCH64_LDST64_ABS_LO12_NC relocate: Use addXXle instead of writeXXle riscv64-gen.c: add bound checking code like i386/x86_64 add NB_ASM_REGS/CONFIG_TCC_ASM riscv64-link.c: relocate: Use addXXle instead of writeXXle i386-gen.c/x86_64-gen.c gen_bounds_epilog: Fix code (unrelated) tests/Makefile: add $(BTESTS) for arm/arm64/riscv64 tests/tests2/Makefile: Use 85 only on i386/x86_64 because of asm code Use 113 only on i386/x86_64 because of DLL code Add 112/114/115/116 for arm/arm64/riscv64 Fix FILTER (failed on riscv64) tests/boundtest.c: Only use alloca for i386/x86_64
2020-06-16 13:39:48 +08:00
case R_AARCH64_LDST64_ABS_LO12_NC:
add arm64 relocs
2021-01-04 02:14:53 +08:00
case R_AARCH64_LDST32_ABS_LO12_NC:
case R_AARCH64_LDST16_ABS_LO12_NC:
FreeBSD (aarch64): fix relocation error.
2020-12-22 12:52:45 +08:00
case R_AARCH64_LDST8_ABS_LO12_NC:
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
case R_AARCH64_GLOB_DAT:
case R_AARCH64_JUMP_SLOT:
case R_AARCH64_COPY:
return NO_GOTPLT_ENTRY;
arm64: Fix 42_function_test Like in 77d7ea04a some relocs need to be handled as possibly needing a PLT/GOT slot in TCC until TCC can transfer dynamic relocs to executables.
2017-02-11 17:16:55 +08:00
case R_AARCH64_ABS32:
case R_AARCH64_ABS64:
Use functions to get relocation info MSVC does not support array designator so cannot compile source using relocs_info. This commit replace the relocs_info array into a set of functions, each returning the value given by a given field of the struct reloc_info.
2016-12-11 01:22:08 +08:00
case R_AARCH64_JUMP26:
case R_AARCH64_CALL26:
return AUTO_GOTPLT_ENTRY;
case R_AARCH64_ADR_GOT_PAGE:
case R_AARCH64_LD64_GOT_LO12_NC:
return ALWAYS_GOTPLT_ENTRY;
}
return -1;
}
Make build_got_entries more target independent Factor most of common logic between targets in build_got_entries by defining target specific info into structures in the backends.
2016-11-12 23:16:07 +08:00
bored... /* Use "-g" as alias for "-g1". Use "-g0" to disable debug */ So not using -g is now the alias for -g0 ?!? This reverts commit 8759b2581d196081e3b152b2ea71ccf1a76412eb. This reverts commit 3ce7bc6efc8079dfa182840a177dbff8199ae1d5. This reverts commit 5fb582ab7f44f8ead28a95e002042e6cb1e72b00. This reverts commit aea68dbb40b544ecf17d90665aaf13ee1e2f905d. This reverts commit fa9c31c3db1898d804db2289a11d9f368da88dd1. This reverts commit b3bebdb20a8910597955f849791f578d42ef178e. This reverts commit ecf8e5a00e5909ae664e1fafb641ddf711210904. This reverts commit fe6b5c08dc68b1bfab6b6ef6b9e29a5af7317262. This reverts commit e2e5377e7b68d57def00acda17ffcfca6dce8b84. This reverts commit 1cd79989057ff937a2bc2b8bdc7afd4f02a91407.
2022-05-08 05:16:13 +08:00
#ifdef NEED_BUILD_GOT
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr)
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
{
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
Section *plt = s1->plt;
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
uint8_t *p;
unsigned plt_offset;
if (plt->data_offset == 0) {
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
section_ptr_add(plt, 32);
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
}
plt_offset = plt->data_offset;
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
p = section_ptr_add(plt, 16);
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
write32le(p, got_offset);
write32le(p + 4, (uint64_t) got_offset >> 32);
return plt_offset;
}
/* relocate the PLT: compute addresses and offsets in the PLT now that final
address for PLT and GOT are known (see fill_program_header) */
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
ST_FUNC void relocate_plt(TCCState *s1)
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
{
uint8_t *p, *p_end;
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
if (!s1->plt)
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
return;
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
p = s1->plt->data;
p_end = p + s1->plt->data_offset;
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
if (p < p_end) {
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
uint64_t plt = s1->plt->sh_addr;
uint64_t got = s1->got->sh_addr + 16;
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
uint64_t off = (got >> 12) - (plt >> 12);
if ((off + ((uint32_t)1 << 20)) >> 21)
tcc_error_noabort(): always use this unless compiling This avoids 'exit(1)' with errors outside of compilation (nasty in particular with libtcc usage) As a sideeffect multiple errors can be seen for linker errors (such as undefined symbols, relocation errors, ...)
2023-04-15 15:54:23 +08:00
tcc_error_noabort("Failed relocating PLT (off=0x%lx, got=0x%lx, plt=0x%lx)", (long)off, (long)got, (long)plt);
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
write32le(p, 0xa9bf7bf0); // stp x16,x30,[sp,#-16]!
write32le(p + 4, (0x90000010 | // adrp x16,...
(off & 0x1ffffc) << 3 | (off & 3) << 29));
write32le(p + 8, (0xf9400211 | // ldr x17,[x16,#...]
(got & 0xff8) << 7));
write32le(p + 12, (0x91000210 | // add x16,x16,#...
(got & 0xfff) << 10));
write32le(p + 16, 0xd61f0220); // br x17
write32le(p + 20, 0xd503201f); // nop
write32le(p + 24, 0xd503201f); // nop
write32le(p + 28, 0xd503201f); // nop
p += 32;
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
got = s1->got->sh_addr;
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
while (p < p_end) {
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
uint64_t pc = plt + (p - s1->plt->data);
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
uint64_t addr = got + read64le(p);
uint64_t off = (addr >> 12) - (pc >> 12);
if ((off + ((uint32_t)1 << 20)) >> 21)
tcc_error_noabort(): always use this unless compiling This avoids 'exit(1)' with errors outside of compilation (nasty in particular with libtcc usage) As a sideeffect multiple errors can be seen for linker errors (such as undefined symbols, relocation errors, ...)
2023-04-15 15:54:23 +08:00
tcc_error_noabort("Failed relocating PLT (off=0x%lx, addr=0x%lx, pc=0x%lx)", (long)off, (long)addr, (long)pc);
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
write32le(p, (0x90000010 | // adrp x16,...
(off & 0x1ffffc) << 3 | (off & 3) << 29));
write32le(p + 4, (0xf9400211 | // ldr x17,[x16,#...]
(addr & 0xff8) << 7));
write32le(p + 8, (0x91000210 | // add x16,x16,#...
(addr & 0xfff) << 10));
write32le(p + 12, 0xd61f0220); // br x17
p += 16;
}
}
lazy binding Currently tcc does not use lazy binding. It puts all relocations in the RELX section and solve them all at startup. This was not working on bsd. tcc.h: - New RELPLT_SECTION_FMT for plt relocations - New entry relocplt in struct Section tccelf.c: - put_elf_reloca: put R_JMP_SLOT in relocplt section - build_got_entries*: Use two passes because R_JMP_SLOT and R_GLOB_DAT can not be intermixed on some targets (arm, arm64) - layout_sections: Calculate correct size relocplt section for DT_ values. Make sure relocplt is last - fill_dynamic: Add DT_ values when got is filled move DT_VERSYM because dynamic linker cannot handle it standone - Add note section for NetBSD arm-link.c/arm64-link.c/i386-link.c/riscv64-link.c/x86_64-link.c: - fill got table with pointer to plt section or symbol value in case of TCC_OUTPUT_MEMORY arm-link.c/arm64-link.c: - fix offset first plt entry i386-link.c/x86_64-link.c: - use correct reloc entry - use relofs - sizeof (ElfW_Rel) because the reloc is already done lib/bcheck.c: - no __libc_freeres on FreeBSD and NetBSD tests/Makefile: - Add -fno-stack-protector for OpenBSD tests/tests2/Makefile: - disable 106_pthread/114_bound_signal
2020-12-18 22:24:32 +08:00
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
if (s1->plt->reloc) {
lazy binding Currently tcc does not use lazy binding. It puts all relocations in the RELX section and solve them all at startup. This was not working on bsd. tcc.h: - New RELPLT_SECTION_FMT for plt relocations - New entry relocplt in struct Section tccelf.c: - put_elf_reloca: put R_JMP_SLOT in relocplt section - build_got_entries*: Use two passes because R_JMP_SLOT and R_GLOB_DAT can not be intermixed on some targets (arm, arm64) - layout_sections: Calculate correct size relocplt section for DT_ values. Make sure relocplt is last - fill_dynamic: Add DT_ values when got is filled move DT_VERSYM because dynamic linker cannot handle it standone - Add note section for NetBSD arm-link.c/arm64-link.c/i386-link.c/riscv64-link.c/x86_64-link.c: - fill got table with pointer to plt section or symbol value in case of TCC_OUTPUT_MEMORY arm-link.c/arm64-link.c: - fix offset first plt entry i386-link.c/x86_64-link.c: - use correct reloc entry - use relofs - sizeof (ElfW_Rel) because the reloc is already done lib/bcheck.c: - no __libc_freeres on FreeBSD and NetBSD tests/Makefile: - Add -fno-stack-protector for OpenBSD tests/tests2/Makefile: - disable 106_pthread/114_bound_signal
2020-12-18 22:24:32 +08:00
ElfW_Rel *rel;
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
p = s1->got->data;
for_each_elem(s1->plt->reloc, 0, rel, ElfW_Rel) {
write64le(p + rel->r_offset, s1->plt->sh_addr);
lazy binding Currently tcc does not use lazy binding. It puts all relocations in the RELX section and solve them all at startup. This was not working on bsd. tcc.h: - New RELPLT_SECTION_FMT for plt relocations - New entry relocplt in struct Section tccelf.c: - put_elf_reloca: put R_JMP_SLOT in relocplt section - build_got_entries*: Use two passes because R_JMP_SLOT and R_GLOB_DAT can not be intermixed on some targets (arm, arm64) - layout_sections: Calculate correct size relocplt section for DT_ values. Make sure relocplt is last - fill_dynamic: Add DT_ values when got is filled move DT_VERSYM because dynamic linker cannot handle it standone - Add note section for NetBSD arm-link.c/arm64-link.c/i386-link.c/riscv64-link.c/x86_64-link.c: - fill got table with pointer to plt section or symbol value in case of TCC_OUTPUT_MEMORY arm-link.c/arm64-link.c: - fix offset first plt entry i386-link.c/x86_64-link.c: - use correct reloc entry - use relofs - sizeof (ElfW_Rel) because the reloc is already done lib/bcheck.c: - no __libc_freeres on FreeBSD and NetBSD tests/Makefile: - Add -fno-stack-protector for OpenBSD tests/tests2/Makefile: - disable 106_pthread/114_bound_signal
2020-12-18 22:24:32 +08:00
}
}
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
}
bored... /* Use "-g" as alias for "-g1". Use "-g0" to disable debug */ So not using -g is now the alias for -g0 ?!? This reverts commit 8759b2581d196081e3b152b2ea71ccf1a76412eb. This reverts commit 3ce7bc6efc8079dfa182840a177dbff8199ae1d5. This reverts commit 5fb582ab7f44f8ead28a95e002042e6cb1e72b00. This reverts commit aea68dbb40b544ecf17d90665aaf13ee1e2f905d. This reverts commit fa9c31c3db1898d804db2289a11d9f368da88dd1. This reverts commit b3bebdb20a8910597955f849791f578d42ef178e. This reverts commit ecf8e5a00e5909ae664e1fafb641ddf711210904. This reverts commit fe6b5c08dc68b1bfab6b6ef6b9e29a5af7317262. This reverts commit e2e5377e7b68d57def00acda17ffcfca6dce8b84. This reverts commit 1cd79989057ff937a2bc2b8bdc7afd4f02a91407.
2022-05-08 05:16:13 +08:00
#endif
#endif
tccelf: some linker cleanup - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
2016-12-16 00:01:22 +08:00
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val)
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
{
Add arm64 dll support Most support was already present. arm64-link.c: - create_plt_entry: - remove DLLs unimplemented! - relocate: - Add TCC_OUTPUT_DLL for R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 tccelf.c: - prepare_dynamic_rel: - Add R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 - fill_got_entry: - Change 'TCC_TARGET_X86_64' into 'PTR_SIZE == 8'
2020-08-02 01:44:49 +08:00
int sym_index = ELFW(R_SYM)(rel->r_info), esym_index;
Fix set but not used error in arm64-link.c
2016-12-06 05:34:00 +08:00
#ifdef DEBUG_RELOC
ElfW(Sym) *sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
#endif
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
switch(type) {
case R_AARCH64_ABS64:
dynamic executables (PIE) Allows to create dynamic executables, using the code path for TCC_OUTPUT_DLL but add an .interp header (plus a FLAGS_1 entry in the dynamic section to make 'readelf' say "PIE") Introduces TCC_OUTPUT_DYN as alias for TCC_OUTPUT_DLL. There is no runtime option, only one to configure: ./configure --config-pie 100 insertions(+), 76 deletions(-)
2022-05-29 03:00:40 +08:00
if ((s1->output_type & TCC_OUTPUT_DYN)) {
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
esym_index = get_sym_attr(s1, sym_index, 0)->dyn_index;
Add arm64 dll support Most support was already present. arm64-link.c: - create_plt_entry: - remove DLLs unimplemented! - relocate: - Add TCC_OUTPUT_DLL for R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 tccelf.c: - prepare_dynamic_rel: - Add R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 - fill_got_entry: - Change 'TCC_TARGET_X86_64' into 'PTR_SIZE == 8'
2020-08-02 01:44:49 +08:00
qrel->r_offset = rel->r_offset;
if (esym_index) {
qrel->r_info = ELFW(R_INFO)(esym_index, R_AARCH64_ABS64);
qrel->r_addend = rel->r_addend;
qrel++;
break;
} else {
qrel->r_info = ELFW(R_INFO)(0, R_AARCH64_RELATIVE);
qrel->r_addend = read64le(ptr) + val;
qrel++;
}
}
Add bound checking to arm, arm64 and riscv64 Checked on: - i386/x86_64 (linux/windows) - arm/arm64 (rapberry pi) - riscv64 (simulator) Not tested for arm softfloat because raspberry pi does not support it. Modifications: Makefile: add arm-asm.c to arm64_FILES add riscv64-asm.c (new file) to riscv64_FILES lib/Makefile: add fetch_and_add_arm.o(new file) to ARM_O add fetch_and_add_arm64.o(new file) to ARM64_O add fetch_and_add_riscv64.o(new file) to RISCV64_O add $(BCHECK_O) to OBJ-arm/OBJ-arm64/OBJ-riscv64 tcc.h: Enable CONFIG_TCC_BCHECK for arm32/arm64/riscv64 Add arm-asm.c, riscv64-asm.c tcctok.h: for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 tccgen.c: put_extern_sym2: for arm check memcpy/memmove/memset/memmove4/memmove8 only use alloca for i386/x86_64 for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 fix builtin_frame_address/builtin_return_address for arm/riscv64 tccrun.c: Add riscv64 support fix rt_getcontext/rt_get_caller_pc for arm tccelf.c: tcc_load_dll: Print filename for bad architecture libtcc.c: add arm-asm.c/riscv64-asm.c tcc-doc.texi: Add arm, arm64, riscv64 support for bound checking lib/bcheck.c: add __bound___aeabi_memcpy/__bound___aeabi_memmove __bound___aeabi_memmove4/__bound___aeabi_memmove8 __bound___aeabi_memset for arm call fetch_and_add_arm/fetch_and_add_arm64/fetch_and_add_riscv64 __bound_init: Fix type for start/end/ad __bound_malloc/__bound_memalign/__bound_realloc/__bound_calloc: Use size + 1 arm-gen.c: add bound checking code like i386/x86_64 assign_regs: only malloc if nb_args != 0 gen_opi/gen_opf: Fix reload problems arm-link.c: relocate_plt: Fix address calculating arm64-gen.c: add bound checking code like i386/x86_64 load/store: remove VT_BOUNDED from sv->r arm64_hfa_aux/arm64_hfa_aux: Fix array code gfunc_prolog: only malloc if n != 0 arm64-link.c: code_reloc/gotplt_entry_type/relocate: add R_AARCH64_LDST64_ABS_LO12_NC relocate: Use addXXle instead of writeXXle riscv64-gen.c: add bound checking code like i386/x86_64 add NB_ASM_REGS/CONFIG_TCC_ASM riscv64-link.c: relocate: Use addXXle instead of writeXXle i386-gen.c/x86_64-gen.c gen_bounds_epilog: Fix code (unrelated) tests/Makefile: add $(BTESTS) for arm/arm64/riscv64 tests/tests2/Makefile: Use 85 only on i386/x86_64 because of asm code Use 113 only on i386/x86_64 because of DLL code Add 112/114/115/116 for arm/arm64/riscv64 Fix FILTER (failed on riscv64) tests/boundtest.c: Only use alloca for i386/x86_64
2020-06-16 13:39:48 +08:00
add64le(ptr, val);
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
return;
case R_AARCH64_ABS32:
dynamic executables (PIE) Allows to create dynamic executables, using the code path for TCC_OUTPUT_DLL but add an .interp header (plus a FLAGS_1 entry in the dynamic section to make 'readelf' say "PIE") Introduces TCC_OUTPUT_DYN as alias for TCC_OUTPUT_DLL. There is no runtime option, only one to configure: ./configure --config-pie 100 insertions(+), 76 deletions(-)
2022-05-29 03:00:40 +08:00
if (s1->output_type & TCC_OUTPUT_DYN) {
Add arm64 dll support Most support was already present. arm64-link.c: - create_plt_entry: - remove DLLs unimplemented! - relocate: - Add TCC_OUTPUT_DLL for R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 tccelf.c: - prepare_dynamic_rel: - Add R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 - fill_got_entry: - Change 'TCC_TARGET_X86_64' into 'PTR_SIZE == 8'
2020-08-02 01:44:49 +08:00
/* XXX: this logic may depend on TCC's codegen
now TCC uses R_AARCH64_RELATIVE even for a 64bit pointer */
qrel->r_offset = rel->r_offset;
qrel->r_info = ELFW(R_INFO)(0, R_AARCH64_RELATIVE);
/* Use sign extension! */
qrel->r_addend = (int)read32le(ptr) + val;
qrel++;
}
Add bound checking to arm, arm64 and riscv64 Checked on: - i386/x86_64 (linux/windows) - arm/arm64 (rapberry pi) - riscv64 (simulator) Not tested for arm softfloat because raspberry pi does not support it. Modifications: Makefile: add arm-asm.c to arm64_FILES add riscv64-asm.c (new file) to riscv64_FILES lib/Makefile: add fetch_and_add_arm.o(new file) to ARM_O add fetch_and_add_arm64.o(new file) to ARM64_O add fetch_and_add_riscv64.o(new file) to RISCV64_O add $(BCHECK_O) to OBJ-arm/OBJ-arm64/OBJ-riscv64 tcc.h: Enable CONFIG_TCC_BCHECK for arm32/arm64/riscv64 Add arm-asm.c, riscv64-asm.c tcctok.h: for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 tccgen.c: put_extern_sym2: for arm check memcpy/memmove/memset/memmove4/memmove8 only use alloca for i386/x86_64 for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 fix builtin_frame_address/builtin_return_address for arm/riscv64 tccrun.c: Add riscv64 support fix rt_getcontext/rt_get_caller_pc for arm tccelf.c: tcc_load_dll: Print filename for bad architecture libtcc.c: add arm-asm.c/riscv64-asm.c tcc-doc.texi: Add arm, arm64, riscv64 support for bound checking lib/bcheck.c: add __bound___aeabi_memcpy/__bound___aeabi_memmove __bound___aeabi_memmove4/__bound___aeabi_memmove8 __bound___aeabi_memset for arm call fetch_and_add_arm/fetch_and_add_arm64/fetch_and_add_riscv64 __bound_init: Fix type for start/end/ad __bound_malloc/__bound_memalign/__bound_realloc/__bound_calloc: Use size + 1 arm-gen.c: add bound checking code like i386/x86_64 assign_regs: only malloc if nb_args != 0 gen_opi/gen_opf: Fix reload problems arm-link.c: relocate_plt: Fix address calculating arm64-gen.c: add bound checking code like i386/x86_64 load/store: remove VT_BOUNDED from sv->r arm64_hfa_aux/arm64_hfa_aux: Fix array code gfunc_prolog: only malloc if n != 0 arm64-link.c: code_reloc/gotplt_entry_type/relocate: add R_AARCH64_LDST64_ABS_LO12_NC relocate: Use addXXle instead of writeXXle riscv64-gen.c: add bound checking code like i386/x86_64 add NB_ASM_REGS/CONFIG_TCC_ASM riscv64-link.c: relocate: Use addXXle instead of writeXXle i386-gen.c/x86_64-gen.c gen_bounds_epilog: Fix code (unrelated) tests/Makefile: add $(BTESTS) for arm/arm64/riscv64 tests/tests2/Makefile: Use 85 only on i386/x86_64 because of asm code Use 113 only on i386/x86_64 because of DLL code Add 112/114/115/116 for arm/arm64/riscv64 Fix FILTER (failed on riscv64) tests/boundtest.c: Only use alloca for i386/x86_64
2020-06-16 13:39:48 +08:00
add32le(ptr, val);
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
return;
arm64: Handle R_AARCH64_PREL32 again This got lost when splitting reloc handling to individual files.
2016-12-13 19:48:55 +08:00
case R_AARCH64_PREL32:
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
if (s1->output_type == TCC_OUTPUT_DLL) {
Add arm64 dll support Most support was already present. arm64-link.c: - create_plt_entry: - remove DLLs unimplemented! - relocate: - Add TCC_OUTPUT_DLL for R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 tccelf.c: - prepare_dynamic_rel: - Add R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 - fill_got_entry: - Change 'TCC_TARGET_X86_64' into 'PTR_SIZE == 8'
2020-08-02 01:44:49 +08:00
/* DLL relocation */
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
esym_index = get_sym_attr(s1, sym_index, 0)->dyn_index;
Add arm64 dll support Most support was already present. arm64-link.c: - create_plt_entry: - remove DLLs unimplemented! - relocate: - Add TCC_OUTPUT_DLL for R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 tccelf.c: - prepare_dynamic_rel: - Add R_AARCH64_ABS64/R_AARCH64_ABS32/R_AARCH64_PREL32 - fill_got_entry: - Change 'TCC_TARGET_X86_64' into 'PTR_SIZE == 8'
2020-08-02 01:44:49 +08:00
if (esym_index) {
qrel->r_offset = rel->r_offset;
qrel->r_info = ELFW(R_INFO)(esym_index, R_AARCH64_PREL32);
/* Use sign extension! */
qrel->r_addend = (int)read32le(ptr) + rel->r_addend;
qrel++;
break;
}
}
arm64: Handle R_AARCH64_PREL32 again This got lost when splitting reloc handling to individual files.
2016-12-13 19:48:55 +08:00
write32le(ptr, val - addr);
return;
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
case R_AARCH64_MOVW_UABS_G0_NC:
write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
(val & 0xffff) << 5));
return;
case R_AARCH64_MOVW_UABS_G1_NC:
write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
(val >> 16 & 0xffff) << 5));
return;
case R_AARCH64_MOVW_UABS_G2_NC:
write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
(val >> 32 & 0xffff) << 5));
return;
case R_AARCH64_MOVW_UABS_G3:
write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
(val >> 48 & 0xffff) << 5));
return;
case R_AARCH64_ADR_PREL_PG_HI21: {
uint64_t off = (val >> 12) - (addr >> 12);
if ((off + ((uint64_t)1 << 20)) >> 21)
tcc_error_noabort(): always use this unless compiling This avoids 'exit(1)' with errors outside of compilation (nasty in particular with libtcc usage) As a sideeffect multiple errors can be seen for linker errors (such as undefined symbols, relocation errors, ...)
2023-04-15 15:54:23 +08:00
tcc_error_noabort("R_AARCH64_ADR_PREL_PG_HI21 relocation failed");
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
write32le(ptr, ((read32le(ptr) & 0x9f00001f) |
(off & 0x1ffffc) << 3 | (off & 3) << 29));
return;
}
case R_AARCH64_ADD_ABS_LO12_NC:
FreeBSD (aarch64): fix relocation error.
2020-12-22 12:52:45 +08:00
case R_AARCH64_LDST8_ABS_LO12_NC:
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
(val & 0xfff) << 10));
return;
add arm64 relocs
2021-01-04 02:14:53 +08:00
case R_AARCH64_LDST16_ABS_LO12_NC:
write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
(val & 0xffe) << 9));
return;
case R_AARCH64_LDST32_ABS_LO12_NC:
write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
(val & 0xffc) << 8));
return;
Add bound checking to arm, arm64 and riscv64 Checked on: - i386/x86_64 (linux/windows) - arm/arm64 (rapberry pi) - riscv64 (simulator) Not tested for arm softfloat because raspberry pi does not support it. Modifications: Makefile: add arm-asm.c to arm64_FILES add riscv64-asm.c (new file) to riscv64_FILES lib/Makefile: add fetch_and_add_arm.o(new file) to ARM_O add fetch_and_add_arm64.o(new file) to ARM64_O add fetch_and_add_riscv64.o(new file) to RISCV64_O add $(BCHECK_O) to OBJ-arm/OBJ-arm64/OBJ-riscv64 tcc.h: Enable CONFIG_TCC_BCHECK for arm32/arm64/riscv64 Add arm-asm.c, riscv64-asm.c tcctok.h: for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 tccgen.c: put_extern_sym2: for arm check memcpy/memmove/memset/memmove4/memmove8 only use alloca for i386/x86_64 for arm use memmove4 instead of memcpy4 for arm use memmove8 instead of memcpy8 fix builtin_frame_address/builtin_return_address for arm/riscv64 tccrun.c: Add riscv64 support fix rt_getcontext/rt_get_caller_pc for arm tccelf.c: tcc_load_dll: Print filename for bad architecture libtcc.c: add arm-asm.c/riscv64-asm.c tcc-doc.texi: Add arm, arm64, riscv64 support for bound checking lib/bcheck.c: add __bound___aeabi_memcpy/__bound___aeabi_memmove __bound___aeabi_memmove4/__bound___aeabi_memmove8 __bound___aeabi_memset for arm call fetch_and_add_arm/fetch_and_add_arm64/fetch_and_add_riscv64 __bound_init: Fix type for start/end/ad __bound_malloc/__bound_memalign/__bound_realloc/__bound_calloc: Use size + 1 arm-gen.c: add bound checking code like i386/x86_64 assign_regs: only malloc if nb_args != 0 gen_opi/gen_opf: Fix reload problems arm-link.c: relocate_plt: Fix address calculating arm64-gen.c: add bound checking code like i386/x86_64 load/store: remove VT_BOUNDED from sv->r arm64_hfa_aux/arm64_hfa_aux: Fix array code gfunc_prolog: only malloc if n != 0 arm64-link.c: code_reloc/gotplt_entry_type/relocate: add R_AARCH64_LDST64_ABS_LO12_NC relocate: Use addXXle instead of writeXXle riscv64-gen.c: add bound checking code like i386/x86_64 add NB_ASM_REGS/CONFIG_TCC_ASM riscv64-link.c: relocate: Use addXXle instead of writeXXle i386-gen.c/x86_64-gen.c gen_bounds_epilog: Fix code (unrelated) tests/Makefile: add $(BTESTS) for arm/arm64/riscv64 tests/tests2/Makefile: Use 85 only on i386/x86_64 because of asm code Use 113 only on i386/x86_64 because of DLL code Add 112/114/115/116 for arm/arm64/riscv64 Fix FILTER (failed on riscv64) tests/boundtest.c: Only use alloca for i386/x86_64
2020-06-16 13:39:48 +08:00
case R_AARCH64_LDST64_ABS_LO12_NC:
write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
(val & 0xff8) << 7));
return;
add arm64 relocs
2021-01-04 02:14:53 +08:00
case R_AARCH64_LDST128_ABS_LO12_NC:
write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
(val & 0xff0) << 6));
return;
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
case R_AARCH64_JUMP26:
case R_AARCH64_CALL26:
#ifdef DEBUG_RELOC
printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr, val,
(char *) symtab_section->link->data + sym->st_name);
#endif
if (((val - addr) + ((uint64_t)1 << 27)) & ~(uint64_t)0xffffffc)
tcc_error_noabort(): always use this unless compiling This avoids 'exit(1)' with errors outside of compilation (nasty in particular with libtcc usage) As a sideeffect multiple errors can be seen for linker errors (such as undefined symbols, relocation errors, ...)
2023-04-15 15:54:23 +08:00
tcc_error_noabort("R_AARCH64_(JUMP|CALL)26 relocation failed"
win64: fix pe_isafunc() - tccpe.c: commit "tidy support for helper function" created STT_NOTYPE symbols and hence relied on ad-hoc detection which didn't work for x86_64 (as reported by Christian Jullien) - tccgen.c: However to be more safe the helper symbols are now made STT_FUNC anyway (via new VT_ASM_FUNC). Also: - tcc.h: minor reorder - riscv64-*, arm64-*, tccmacho.c: avoid some gcc format-warnings (mingw-gcc complains about "%llx" being "unknown conversion", although it does work since Vista or so)
2020-11-25 18:23:01 +08:00
" (val=%lx, addr=%lx)", (long)val, (long)addr);
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
write32le(ptr, (0x14000000 |
(uint32_t)(type == R_AARCH64_CALL26) << 31 |
((val - addr) >> 2 & 0x3ffffff)));
return;
case R_AARCH64_ADR_GOT_PAGE: {
uint64_t off =
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
(((s1->got->sh_addr +
get_sym_attr(s1, sym_index, 0)->got_offset) >> 12) - (addr >> 12));
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
if ((off + ((uint64_t)1 << 20)) >> 21)
tcc_error_noabort(): always use this unless compiling This avoids 'exit(1)' with errors outside of compilation (nasty in particular with libtcc usage) As a sideeffect multiple errors can be seen for linker errors (such as undefined symbols, relocation errors, ...)
2023-04-15 15:54:23 +08:00
tcc_error_noabort("R_AARCH64_ADR_GOT_PAGE relocation failed");
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
write32le(ptr, ((read32le(ptr) & 0x9f00001f) |
(off & 0x1ffffc) << 3 | (off & 3) << 29));
return;
}
case R_AARCH64_LD64_GOT_LO12_NC:
write32le(ptr,
((read32le(ptr) & 0xfff803ff) |
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
((s1->got->sh_addr +
get_sym_attr(s1, sym_index, 0)->got_offset) & 0xff8) << 7));
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
return;
case R_AARCH64_COPY:
return;
case R_AARCH64_GLOB_DAT:
case R_AARCH64_JUMP_SLOT:
/* They don't need addend */
#ifdef DEBUG_RELOC
printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr,
val - rel->r_addend,
(char *) symtab_section->link->data + sym->st_name);
#endif
write64le(ptr, val - rel->r_addend);
return;
final update for 0.9.27 tccgen.c: - fix ldouble asm hack - fix a VLA problem on Win64 (also x86_64-gen.c) - patch_type(): make sure that no symbol ever changes from global to static tcc.c: - tcc -vv: print libtcc1.a path also on win32 tccpe.c, tcctools.c: - use unix LF mode to for .def output files (that is for creating reproducible output trees) Makefile: - suppress some warnings when makeinfo is missing - call 'which install' only on win32 tests/Makefile: - change PATH only on WINNT systems (i.e. not if cross-compiling on linux for win32) - asm-c-connect.test: slim output and do diff tccrun.c tccpe.c *-link.c: - integrate former 'pe_relocate_rva()' into normal relocation This also fixes linkage of the unwind data on WIN64 for -run (reported by Janus Lynggaard Thorborg) tccasm.c, tests/tcctest.c: - fix dot (sym_index of -1 crashed in put_elf_reloc) - massage .set a bit (see test) other: - #define SECTION_ABS removed - ST_DATA Section *strtab_section: removed - put_extern_sym2(): take int section number Conflicts: tccelf.c tccpe.c Conflicts: tccelf.c
2017-12-13 00:57:20 +08:00
case R_AARCH64_RELATIVE:
#ifdef TCC_TARGET_PE
Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" This reverts commit af686a796bda94dc92fc3ad140ef438dafa08950.
2021-10-22 13:39:54 +08:00
add32le(ptr, val - s1->pe_imagebase);
final update for 0.9.27 tccgen.c: - fix ldouble asm hack - fix a VLA problem on Win64 (also x86_64-gen.c) - patch_type(): make sure that no symbol ever changes from global to static tcc.c: - tcc -vv: print libtcc1.a path also on win32 tccpe.c, tcctools.c: - use unix LF mode to for .def output files (that is for creating reproducible output trees) Makefile: - suppress some warnings when makeinfo is missing - call 'which install' only on win32 tests/Makefile: - change PATH only on WINNT systems (i.e. not if cross-compiling on linux for win32) - asm-c-connect.test: slim output and do diff tccrun.c tccpe.c *-link.c: - integrate former 'pe_relocate_rva()' into normal relocation This also fixes linkage of the unwind data on WIN64 for -run (reported by Janus Lynggaard Thorborg) tccasm.c, tests/tcctest.c: - fix dot (sym_index of -1 crashed in put_elf_reloc) - massage .set a bit (see test) other: - #define SECTION_ABS removed - ST_DATA Section *strtab_section: removed - put_extern_sym2(): take int section number Conflicts: tccelf.c tccpe.c Conflicts: tccelf.c
2017-12-13 00:57:20 +08:00
#endif
/* do nothing */
return;
Do section relocation in architecture backend
2016-11-12 23:16:06 +08:00
default:
fprintf(stderr, "FIXME: handle reloc type %x at %x [%p] to %x\n",
type, (unsigned)addr, ptr, (unsigned)val);
return;
}
}
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.
2016-12-06 04:40:59 +08:00
#endif /* !TARGET_DEFS_ONLY */
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