gen_section

CodeArtifact

gen_section is a helper function used by the riscv_asm_program_gen assembly-program generator to insert named assembly sections into an instruction stream. The evidence shows it being used for the _start header section, host-interface code such as write_tohost and _exit, and trap-vector-related code such as mtvec_handler.

First seen 5/26/2026

Last seen 5/28/2026

Evidence 2 chunks

Wiki v1

WIKI

Overview

gen_section is a code-generation helper associated with the riscv_asm_program_gen flow in riscv-dv. The surrounding generator class is described as producing complete RISC-V assembly programs for processor IP verification, including initialization, instruction, data, stack, page-table, interrupt, and exception-handling sections.

Within that flow, gen_section is used to add named assembly sections into the generated instruction stream.

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NEIGHBORHOOD

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RELATIONSHIPS

5 connections

riscv_asm_program_gen part of → 100% 4e

gen_section is a function within riscv_asm_program_gen used to insert instruction sections.

gen_program ← uses 95% 2e

gen_program uses gen_section to add host interface instructions and other sections.

gen_program_header ← uses 100% 2e

gen_program_header calls gen_section to insert the header instructions.

exception handling implements → 1e

gen_section selects and implements exception handling instructions in the generated program.

interrupt handling implements → 1e

gen_section selects and implements interrupt handling instructions in the generated program.

LINKED ENTITIES

3 links

riscv_asm_program_gen member_or_helper_of The evidence describes gen_section as a function used within the riscv_asm_program_gen assembly-program generation flow.

gen_program_header called_by The evidence states that gen_program_header() calls gen_section("_start", str) to insert header instructions into instr_stream.

gen_program used_in_generation_flow The evidence describes gen_program() as the main function that calls other riscv_asm_program_gen functions, including the header-generation path that invokes gen_section and later host-interface insertion with gen_section.

CITATIONS

6 sources

6 citations — click to expand

[1] riscv_asm_program_gen generates complete RISC-V assembly programs for RISC-V IP verification and includes functions for sections such as initialization, instruction, data, stack, page table, interrupt, and exception handling. RISC-V source class riscv_asm_program_gen, the brain behind ...

[2] gen_program() is described as the main function that generates all sections of the program and calls other riscv_asm_program_gen functions. RISC-V source class riscv_asm_program_gen, the brain behind ...

[3] gen_program_header() calls gen_section("_start", str), which inserts header instructions into instr_stream. RISC-V source class riscv_asm_program_gen, the brain behind ...

[4] After main-program and subprogram generation, host-interface-related instructions are added by gen_section, including write_tohost, sw gp, tohost, t1, and _exit. RISC-V source class riscv_asm_program_gen, the brain behind ...

[5] riscv_asm_program uses gen_section() to select the mtvec_handler instruction string, which has exception_hander and interrupt_handler defined. RISC-V source class riscv_asm_program_gen, the brain behind ...

[6] The generated program flow uses gen_program() and associated helpers with riscv_instruction_sequence, base test classes, and configuration helpers to produce complete RISC-V assembly programs with randomized instructions and randomized GPR selections. RISC-V source class riscv_asm_program_gen, the brain behind ...