Changeset 25eec4e in mainline for uspace/lib/c/arch/ia32/src/setjmp.S
- Timestamp:
- 2013-04-19T18:38:18Z (12 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 6d717a4
- Parents:
- a1e2df13 (diff), 289cb7dd (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
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- 1 edited
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uspace/lib/c/arch/ia32/src/setjmp.S
ra1e2df13 r25eec4e 35 35 .type setjmp,@function 36 36 setjmp: 37 movl 0(%esp),%eax # save pc value into eax38 movl 4(%esp),%edx # address of the jmp_buf structure to save context to39 40 37 movl 0(%esp),%eax # save pc value into eax 38 movl 4(%esp),%edx # address of the jmp_buf structure to save context to 39 40 # save registers to the jmp_buf structure 41 41 CONTEXT_SAVE_ARCH_CORE %edx %eax 42 43 xorl %eax,%eax 42 43 xorl %eax,%eax # set_jmp returns 0 44 44 ret 45 45 46 46 .type longjmp,@function 47 47 longjmp: 48 49 movl 4(%esp), %ecx # put address of jmp_buf into ecx 50 movl 8(%esp), %eax # put return value into eax 51 52 # restore registers from the jmp_buf structure 48 movl 4(%esp), %ecx # put address of jmp_buf into ecx 49 movl 8(%esp), %eax # put return value into eax 50 51 # restore registers from the jmp_buf structure 53 52 CONTEXT_RESTORE_ARCH_CORE %ecx %edx 54 55 movl %edx,0(%esp) 53 54 movl %edx,0(%esp) # put saved pc on stack 56 55 ret 57
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