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Age	Commit message (Collapse)	Author
2026-03-12	components: libc: fix reset static variable unsolved in ↵	kenneth.liu
	dlmodule_load_shared_object [Problem Description] In the dlmodule_load_shared_object function, if a module loading fails once due to an unresolved symbol, all subsequent attempts to load any module will fail. The system becomes unable to load modules correctly until a reboot. [Problem Analysis] The root cause is that the variable unsolved is defined as static. Static variables retain their value between function calls. If a relocation error occurs, unsolved is set to RT_TRUE. However, when the function returns with an error, the value of unsolved is not reset. Consequently, on the next function call, unsolved remains RT_TRUE from the previous execution. This causes the check if (unsolved) to trigger immediately (or after the loop), forcing the function to return an error regardless of whether the current module is valid or not. [Solution] Reset the unsolved variable to RT_FALSE before returning the error code -RT_ERROR. This ensures the variable is in a clean state for the next function call, preventing state leakage between invocations. Signed-off-by: Liu Gui <[email protected]>
2025-12-18	[components][libc][posix][libdl] Optimization: Redundant calculations in a ↵	laidene
	for loop
2025-02-22	components: libc: fix pointer-to-integer cast warnings and address truncation	kenneth.liu
	[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 <[email protected]>
2024-11-13	[libc] add comments for libdl APIs.	ligr

2022-01-20	[libdl] move libdl to posix folder (#5523)	Man, Jianting (Meco)