Date: Mon, 15 Dec 2025 17:00:03 +0000 From: Jessica Clarke <jrtc27@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: d5d8583a16ef - stable/14 - rtld-elf: Pass parsed aux_info to ifunc_init Message-ID: <69403e93.dda4.50e105fe@gitrepo.freebsd.org>
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The branch stable/14 has been updated by jrtc27: URL: https://cgit.FreeBSD.org/src/commit/?id=d5d8583a16ef533dfd8e1164401c4960417014ad commit d5d8583a16ef533dfd8e1164401c4960417014ad Author: Jessica Clarke <jrtc27@FreeBSD.org> AuthorDate: 2024-08-22 19:36:44 +0000 Commit: Jessica Clarke <jrtc27@FreeBSD.org> CommitDate: 2025-12-15 16:58:43 +0000 rtld-elf: Pass parsed aux_info to ifunc_init Currently we pass the raw pointer to the on-stack auxargs. This can legitimately have fewer than AT_COUNT entries, so the use of __min_size(AT_COUNT), i.e. static AT_COUNT, is inaccurate, and also needlessly forces the callee to iterate over the elements to find the entry for a given type. Instead we can just pass aux_info like we use for everything else. Note that the argument has been left unused by every callee since its introduction in 4352999e0e6c ("Pass CPUID[1] %edx (cpu_feature), %ecx (cpu_feature2) and CPUID[7].%ebx (cpu_stdext_feature), %ecx (cpu_stdext_feature2) to the ifunc resolvers on x86.") Reviewed by: kib MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D46276 (cherry picked from commit 33658afd4e4d11cd71d92e52ca9da5381cdd829b) --- libexec/rtld-elf/aarch64/reloc.c | 2 +- libexec/rtld-elf/amd64/reloc.c | 2 +- libexec/rtld-elf/arm/reloc.c | 2 +- libexec/rtld-elf/i386/reloc.c | 2 +- libexec/rtld-elf/powerpc/reloc.c | 2 +- libexec/rtld-elf/powerpc64/reloc.c | 2 +- libexec/rtld-elf/riscv/reloc.c | 2 +- libexec/rtld-elf/rtld.c | 2 +- libexec/rtld-elf/rtld.h | 2 +- 9 files changed, 9 insertions(+), 9 deletions(-) diff --git a/libexec/rtld-elf/aarch64/reloc.c b/libexec/rtld-elf/aarch64/reloc.c index 828686af8b98..c65b5dd431a0 100644 --- a/libexec/rtld-elf/aarch64/reloc.c +++ b/libexec/rtld-elf/aarch64/reloc.c @@ -352,7 +352,7 @@ reloc_jmpslot(Elf_Addr *where, Elf_Addr target, } void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { } diff --git a/libexec/rtld-elf/amd64/reloc.c b/libexec/rtld-elf/amd64/reloc.c index e46f6bc2e9b5..134506ae3854 100644 --- a/libexec/rtld-elf/amd64/reloc.c +++ b/libexec/rtld-elf/amd64/reloc.c @@ -497,7 +497,7 @@ reloc_gnu_ifunc(Obj_Entry *obj, int flags, RtldLockState *lockstate) uint32_t cpu_feature, cpu_feature2, cpu_stdext_feature, cpu_stdext_feature2; void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { u_int p[4], cpu_high; diff --git a/libexec/rtld-elf/arm/reloc.c b/libexec/rtld-elf/arm/reloc.c index 6efc9f499761..6bcfaa507505 100644 --- a/libexec/rtld-elf/arm/reloc.c +++ b/libexec/rtld-elf/arm/reloc.c @@ -443,7 +443,7 @@ reloc_jmpslot(Elf_Addr *where, Elf_Addr target, } void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { } diff --git a/libexec/rtld-elf/i386/reloc.c b/libexec/rtld-elf/i386/reloc.c index 361bb777315a..24c754865504 100644 --- a/libexec/rtld-elf/i386/reloc.c +++ b/libexec/rtld-elf/i386/reloc.c @@ -462,7 +462,7 @@ rtld_cpuid_count(int idx, int cnt, u_int *p) } void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { u_int p[4], cpu_high; int cpuid_supported; diff --git a/libexec/rtld-elf/powerpc/reloc.c b/libexec/rtld-elf/powerpc/reloc.c index 73a1c89991e2..859991cbe27f 100644 --- a/libexec/rtld-elf/powerpc/reloc.c +++ b/libexec/rtld-elf/powerpc/reloc.c @@ -802,7 +802,7 @@ powerpc_abi_variant_hook(Elf_Auxinfo** aux_info) } void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { } diff --git a/libexec/rtld-elf/powerpc64/reloc.c b/libexec/rtld-elf/powerpc64/reloc.c index 70928829aeda..71b7a361f0df 100644 --- a/libexec/rtld-elf/powerpc64/reloc.c +++ b/libexec/rtld-elf/powerpc64/reloc.c @@ -699,7 +699,7 @@ powerpc64_abi_variant_hook(Elf_Auxinfo** aux_info) } void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { } diff --git a/libexec/rtld-elf/riscv/reloc.c b/libexec/rtld-elf/riscv/reloc.c index d806e1ec3d63..2b254803fabf 100644 --- a/libexec/rtld-elf/riscv/reloc.c +++ b/libexec/rtld-elf/riscv/reloc.c @@ -377,7 +377,7 @@ reloc_non_plt(Obj_Entry *obj, Obj_Entry *obj_rtld, int flags, } void -ifunc_init(Elf_Auxinfo aux_info[__min_size(AT_COUNT)] __unused) +ifunc_init(Elf_Auxinfo *aux_info[__min_size(AT_COUNT)] __unused) { } diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c index a49d2a6301d2..8509321b785f 100644 --- a/libexec/rtld-elf/rtld.c +++ b/libexec/rtld-elf/rtld.c @@ -918,7 +918,7 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entry **objp) exit (0); } - ifunc_init(aux); + ifunc_init(aux_info); /* * Setup TLS for main thread. This must be done after the diff --git a/libexec/rtld-elf/rtld.h b/libexec/rtld-elf/rtld.h index 8d0b8bfed2ab..527ecf9d84e7 100644 --- a/libexec/rtld-elf/rtld.h +++ b/libexec/rtld-elf/rtld.h @@ -446,7 +446,7 @@ int reloc_jmpslots(Obj_Entry *, int flags, struct Struct_RtldLockState *); int reloc_iresolve(Obj_Entry *, struct Struct_RtldLockState *); int reloc_iresolve_nonplt(Obj_Entry *, struct Struct_RtldLockState *); int reloc_gnu_ifunc(Obj_Entry *, int flags, struct Struct_RtldLockState *); -void ifunc_init(Elf_Auxinfo[__min_size(AT_COUNT)]); +void ifunc_init(Elf_Auxinfo *[__min_size(AT_COUNT)]); void init_pltgot(Obj_Entry *); void allocate_initial_tls(Obj_Entry *);help
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