rt-thread.git/components/libc/posix/libdl/dlmodule.h, branch copilot/fix-dlopen-name-mismatch

[libc][libdl] Extract name extraction to shared function and fix edge cases

2026-03-19T02:36:09Z

Address code review feedback: 1. Extract path stripping logic into shared dlmodule_extract_name() function to avoid code duplication between dlopen() and _dlmodule_set_name(). 2. Fix edge case handling for filenames starting with dot (e.g., .hidden). 3. Add proper documentation for the new function. This ensures consistent module name extraction across all code paths. Co-authored-by: BernardXiong <1241087+BernardXiong@users.noreply.github.com>

components: libc: fix pointer-to-integer cast warnings and address truncation

2025-02-22T19:16:00Z

[Problem Description] 1. When enabling RT_USING_MODULE=y, compilation warnings occur: dlelf.c:386:27: warning: cast from pointer to integer of different size dlelf.c:398:25: warning: cast from pointer to integer of different size dlelf.c:408:24: warning: cast from pointer to integer of different size 2. On RV64 architectures (e.g. Sophgo SG2042 with RISC-V Sv39 and 40-bit physical addressing), dlsym may fail when accessing addresses beyond 32-bit range. [Root Cause] In dlmodule_load_relocated_object() and dlmodule_symbol_find(), pointer is cast to rt_uint32_t which truncates: | rt_ubase_t rodata_addr = (rt_uint32_t)ptr; This causes: - Warnings on 64-bit systems (pointer width > 32-bit) - Actual address truncation on RV64 when physical address exceeds 32-bit [Solution] Replace rt_uint32_t with architecture-adaptive rt_ubase_t: | rt_ubase_t rodata_addr = (rt_ubase_t)ptr; The rt_ubase_t is defined in include/rttypes.h as: | #ifdef ARCH_CPU_64BIT | typedef rt_uint64_t rt_ubase_t; | #else | typedef rt_uint32_t rt_ubase_t; | #endif This ensures correct width casting for both 32/64-bit architectures. Signed-off-by: Liu Gui

[libc] add comments for libdl APIs.

2024-11-12T23:58:34Z

[libdl] move libdl to posix folder (#5523)

2022-01-20T12:55:31Z